--- /dev/null
+../leafo/scssphp/bin/pscss
\ No newline at end of file
"pelago/emogrifier": "2.0.*",
"chrisjean/php-ico": "1.0.*",
"true/punycode": "~2.0",
- "pear/net_idna2": "^0.2.0"
+ "pear/net_idna2": "^0.2.0",
+ "leafo/scssphp": "^0.7.7"
}
}
"Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
"This file is @generated automatically"
],
- "content-hash": "83564020f4f34e3a7ad91988e292d804",
+ "content-hash": "8bb68a1df86b612a3b7196301df662b3",
"packages": [
{
"name": "chrisjean/php-ico",
],
"time": "2018-02-23T01:58:20+00:00"
},
+ {
+ "name": "leafo/scssphp",
+ "version": "v0.7.7",
+ "source": {
+ "type": "git",
+ "url": "https://github.com/leafo/scssphp.git",
+ "reference": "1d656f8c02a3a69404bba6b28ec4e06edddf0f49"
+ },
+ "dist": {
+ "type": "zip",
+ "url": "https://api.github.com/repos/leafo/scssphp/zipball/1d656f8c02a3a69404bba6b28ec4e06edddf0f49",
+ "reference": "1d656f8c02a3a69404bba6b28ec4e06edddf0f49",
+ "shasum": ""
+ },
+ "require": {
+ "php": ">=5.4.0"
+ },
+ "require-dev": {
+ "phpunit/phpunit": "~4.6",
+ "squizlabs/php_codesniffer": "~2.5"
+ },
+ "bin": [
+ "bin/pscss"
+ ],
+ "type": "library",
+ "autoload": {
+ "psr-4": {
+ "Leafo\\ScssPhp\\": "src/"
+ }
+ },
+ "notification-url": "https://packagist.org/downloads/",
+ "license": [
+ "MIT"
+ ],
+ "authors": [
+ {
+ "name": "Leaf Corcoran",
+ "email": "leafot@gmail.com",
+ "homepage": "http://leafo.net"
+ }
+ ],
+ "description": "scssphp is a compiler for SCSS written in PHP.",
+ "homepage": "http://leafo.github.io/scssphp/",
+ "keywords": [
+ "css",
+ "less",
+ "sass",
+ "scss",
+ "stylesheet"
+ ],
+ "time": "2018-07-22T01:22:08+00:00"
+ },
{
"name": "pear/net_idna2",
"version": "v0.2.0",
*/
public function setApcuPrefix($apcuPrefix)
{
- $this->apcuPrefix = function_exists('apcu_fetch') && ini_get('apc.enabled') ? $apcuPrefix : null;
+ $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
}
/**
$subPath = $class;
while (false !== $lastPos = strrpos($subPath, '\\')) {
$subPath = substr($subPath, 0, $lastPos);
- $search = $subPath.'\\';
+ $search = $subPath . '\\';
if (isset($this->prefixDirsPsr4[$search])) {
$pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
foreach ($this->prefixDirsPsr4[$search] as $dir) {
'TrueBV\\' => array($vendorDir . '/true/punycode/src'),
'Symfony\\Polyfill\\Mbstring\\' => array($vendorDir . '/symfony/polyfill-mbstring'),
'Pelago\\' => array($vendorDir . '/pelago/emogrifier/Classes'),
+ 'Leafo\\ScssPhp\\' => array($vendorDir . '/leafo/scssphp/src'),
);
array (
'Pelago\\' => 7,
),
+ 'L' =>
+ array (
+ 'Leafo\\ScssPhp\\' => 14,
+ ),
);
public static $prefixDirsPsr4 = array (
array (
0 => __DIR__ . '/..' . '/pelago/emogrifier/Classes',
),
+ 'Leafo\\ScssPhp\\' =>
+ array (
+ 0 => __DIR__ . '/..' . '/leafo/scssphp/src',
+ ),
);
public static $prefixesPsr0 = array (
"html"
]
},
+ {
+ "name": "leafo/scssphp",
+ "version": "v0.7.7",
+ "version_normalized": "0.7.7.0",
+ "source": {
+ "type": "git",
+ "url": "https://github.com/leafo/scssphp.git",
+ "reference": "1d656f8c02a3a69404bba6b28ec4e06edddf0f49"
+ },
+ "dist": {
+ "type": "zip",
+ "url": "https://api.github.com/repos/leafo/scssphp/zipball/1d656f8c02a3a69404bba6b28ec4e06edddf0f49",
+ "reference": "1d656f8c02a3a69404bba6b28ec4e06edddf0f49",
+ "shasum": ""
+ },
+ "require": {
+ "php": ">=5.4.0"
+ },
+ "require-dev": {
+ "phpunit/phpunit": "~4.6",
+ "squizlabs/php_codesniffer": "~2.5"
+ },
+ "time": "2018-07-22T01:22:08+00:00",
+ "bin": [
+ "bin/pscss"
+ ],
+ "type": "library",
+ "installation-source": "dist",
+ "autoload": {
+ "psr-4": {
+ "Leafo\\ScssPhp\\": "src/"
+ }
+ },
+ "notification-url": "https://packagist.org/downloads/",
+ "license": [
+ "MIT"
+ ],
+ "authors": [
+ {
+ "name": "Leaf Corcoran",
+ "email": "leafot@gmail.com",
+ "homepage": "http://leafo.net"
+ }
+ ],
+ "description": "scssphp is a compiler for SCSS written in PHP.",
+ "homepage": "http://leafo.github.io/scssphp/",
+ "keywords": [
+ "css",
+ "less",
+ "sass",
+ "scss",
+ "stylesheet"
+ ]
+ },
{
"name": "pear/net_idna2",
"version": "v0.2.0",
--- /dev/null
+Copyright (c) 2015 Leaf Corcoran, http://leafo.github.io/scssphp
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- /dev/null
+# scssphp
+### <http://leafo.github.io/scssphp>
+
+[](http://travis-ci.org/leafo/scssphp)
+[](https://packagist.org/packages/leafo/scssphp)
+
+`scssphp` is a compiler for SCSS written in PHP.
+
+Checkout the homepage, <http://leafo.github.io/scssphp>, for directions on how to use.
+
+## Running Tests
+
+`scssphp` uses [PHPUnit](https://github.com/sebastianbergmann/phpunit) for testing.
+
+Run the following command from the root directory to run every test:
+
+ vendor/bin/phpunit tests
+
+There are several tests in the `tests/` directory:
+
+* `ApiTest.php` contains various unit tests that test the PHP interface.
+* `ExceptionTest.php` contains unit tests that test for exceptions thrown by the parser and compiler.
+* `FailingTest.php` contains tests reported in Github issues that demonstrate compatibility bugs.
+* `InputTest.php` compiles every `.scss` file in the `tests/inputs` directory
+ then compares to the respective `.css` file in the `tests/outputs` directory.
+* `ScssTest.php` extracts (ruby) `scss` tests from the `tests/scss_test.rb` file.
+* `ServerTest.php` contains functional tests for the `Server` class.
+
+When changing any of the tests in `tests/inputs`, the tests will most likely
+fail because the output has changed. Once you verify that the output is correct
+you can run the following command to rebuild all the tests:
+
+ BUILD=1 vendor/bin/phpunit tests
+
+This will compile all the tests, and save results into `tests/outputs`.
+
+To enable the `scss` compatibility tests:
+
+ TEST_SCSS_COMPAT=1 vendor/bin/phpunit tests
+
+## Coding Standard
+
+`scssphp` source conforms to [PSR2](http://www.php-fig.org/psr/psr-2/).
+
+Run the following command from the root directory to check the code for "sniffs".
+
+ vendor/bin/phpcs --standard=PSR2 bin src tests
--- /dev/null
+#!/usr/bin/env php
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2015 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+error_reporting(E_ALL);
+
+if (version_compare(PHP_VERSION, '5.4') < 0) {
+ die('Requires PHP 5.4 or above');
+}
+
+include __DIR__ . '/../scss.inc.php';
+
+use Leafo\ScssPhp\Compiler;
+use Leafo\ScssPhp\Parser;
+use Leafo\ScssPhp\Version;
+
+$style = null;
+$loadPaths = null;
+$precision = null;
+$dumpTree = false;
+$inputFile = null;
+$changeDir = false;
+$debugInfo = false;
+$lineNumbers = false;
+$ignoreErrors = false;
+$encoding = false;
+$sourceMap = false;
+
+/**
+ * Parse argument
+ *
+ * @param integer $i
+ * @param array $options
+ *
+ * @return string|null
+ */
+function parseArgument(&$i, $options) {
+ global $argc;
+ global $argv;
+
+ if (! preg_match('/^(?:' . implode('|', (array) $options) . ')=?(.*)/', $argv[$i], $matches)) {
+ return;
+ }
+
+ if (strlen($matches[1])) {
+ return $matches[1];
+ }
+
+ if ($i + 1 < $argc) {
+ $i++;
+
+ return $argv[$i];
+ }
+}
+
+for ($i = 1; $i < $argc; $i++) {
+ if ($argv[$i] === '-h' || $argv[$i] === '--help') {
+ $exe = $argv[0];
+
+ $HELP = <<<EOT
+Usage: $exe [options] [input-file]
+
+Options include:
+
+ -h, --help Show this message
+ --continue-on-error Continue compilation (as best as possible) when error encountered
+ --debug-info Annotate selectors with CSS referring to the source file and line number
+ -f=format Set the output format (compact, compressed, crunched, expanded, or nested)
+ -i=path Set import path
+ --iso8859-1 Use iso8859-1 encoding instead of utf-8 (default utf-8)
+ --line-numbers Annotate selectors with comments referring to the source file and line number
+ -p=precision Set decimal number precision (default 10)
+ --sourcemap Create source map file
+ -T Dump formatted parse tree
+ -v, --version Print the version
+
+EOT;
+ exit($HELP);
+ }
+
+ if ($argv[$i] === '-v' || $argv[$i] === '--version') {
+ exit(Version::VERSION . "\n");
+ }
+
+ if ($argv[$i] === '--continue-on-error') {
+ $ignoreErrors = true;
+ continue;
+ }
+
+ if ($argv[$i] === '--debug-info') {
+ $debugInfo = true;
+ continue;
+ }
+
+ if ($argv[$i] === '--iso8859-1') {
+ $encoding = 'iso8859-1';
+ continue;
+ }
+
+ if ($argv[$i] === '--line-numbers' || $argv[$i] === '--line-comments') {
+ $lineNumbers = true;
+ continue;
+ }
+
+ if ($argv[$i] === '--sourcemap') {
+ $sourceMap = true;
+ continue;
+ }
+
+ if ($argv[$i] === '-T') {
+ $dumpTree = true;
+ continue;
+ }
+
+ $value = parseArgument($i, array('-f', '--style'));
+
+ if (isset($value)) {
+ $style = $value;
+ continue;
+ }
+
+ $value = parseArgument($i, array('-i', '--load_paths'));
+
+ if (isset($value)) {
+ $loadPaths = $value;
+ continue;
+ }
+
+ $value = parseArgument($i, array('-p', '--precision'));
+
+ if (isset($value)) {
+ $precision = $value;
+ continue;
+ }
+
+ if (file_exists($argv[$i])) {
+ $inputFile = $argv[$i];
+ continue;
+ }
+}
+
+
+if ($inputFile) {
+ $data = file_get_contents($inputFile);
+
+ $newWorkingDir = dirname(realpath($inputFile));
+ $oldWorkingDir = getcwd();
+
+ if ($oldWorkingDir !== $newWorkingDir) {
+ $changeDir = chdir($newWorkingDir);
+ $inputFile = basename($inputFile);
+ }
+} else {
+ $data = '';
+
+ while (! feof(STDIN)) {
+ $data .= fread(STDIN, 8192);
+ }
+}
+
+if ($dumpTree) {
+ $parser = new Parser($inputFile);
+
+ print_r(json_decode(json_encode($parser->parse($data)), true));
+
+ exit();
+}
+
+$scss = new Compiler();
+
+if ($debugInfo) {
+ $scss->setLineNumberStyle(Compiler::DEBUG_INFO);
+}
+
+if ($lineNumbers) {
+ $scss->setLineNumberStyle(Compiler::LINE_COMMENTS);
+}
+
+if ($ignoreErrors) {
+ $scss->setIgnoreErrors($ignoreErrors);
+}
+
+if ($loadPaths) {
+ $scss->setImportPaths(explode(PATH_SEPARATOR, $loadPaths));
+}
+
+if ($precision) {
+ $scss->setNumberPrecision($precision);
+}
+
+if ($style) {
+ $scss->setFormatter('Leafo\\ScssPhp\\Formatter\\' . ucfirst($style));
+}
+
+if ($sourceMap) {
+ $scss->setSourceMap(Compiler::SOURCE_MAP_FILE);
+}
+
+if ($encoding) {
+ $scss->setEncoding($encoding);
+}
+
+echo $scss->compile($data, $inputFile);
+
+if ($changeDir) {
+ chdir($oldWorkingDir);
+}
--- /dev/null
+{
+ "name": "leafo/scssphp",
+ "type": "library",
+ "description": "scssphp is a compiler for SCSS written in PHP.",
+ "keywords": ["css", "stylesheet", "scss", "sass", "less"],
+ "homepage": "http://leafo.github.io/scssphp/",
+ "license": [
+ "MIT"
+ ],
+ "authors": [
+ {
+ "name": "Leaf Corcoran",
+ "email": "leafot@gmail.com",
+ "homepage": "http://leafo.net"
+ }
+ ],
+ "autoload": {
+ "psr-4": { "Leafo\\ScssPhp\\": "src/" }
+ },
+ "autoload-dev": {
+ "psr-4": { "Leafo\\ScssPhp\\Test\\": "tests/" }
+ },
+ "require": {
+ "php": ">=5.4.0"
+ },
+ "require-dev": {
+ "squizlabs/php_codesniffer": "~2.5",
+ "phpunit/phpunit": "~4.6"
+ },
+ "bin": ["bin/pscss"],
+ "archive": {
+ "exclude": [
+ "/Makefile",
+ "/.gitattributes",
+ "/.gitignore",
+ "/.travis.yml",
+ "/phpunit.xml.dist",
+ "/tests"
+ ]
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2017 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+use Leafo\ScssPhp\Compiler;
+use Leafo\ScssPhp\Exception\ServerException;
+use Leafo\ScssPhp\Version;
+
+/**
+ * Server
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Server
+{
+ /**
+ * @var boolean
+ */
+ private $showErrorsAsCSS;
+
+ /**
+ * @var string
+ */
+ private $dir;
+
+ /**
+ * @var string
+ */
+ private $cacheDir;
+
+ /**
+ * @var \Leafo\ScssPhp\Compiler
+ */
+ private $scss;
+
+ /**
+ * Join path components
+ *
+ * @param string $left Path component, left of the directory separator
+ * @param string $right Path component, right of the directory separator
+ *
+ * @return string
+ */
+ protected function join($left, $right)
+ {
+ return rtrim($left, '/\\') . DIRECTORY_SEPARATOR . ltrim($right, '/\\');
+ }
+
+ /**
+ * Get name of requested .scss file
+ *
+ * @return string|null
+ */
+ protected function inputName()
+ {
+ switch (true) {
+ case isset($_GET['p']):
+ return $_GET['p'];
+ case isset($_SERVER['PATH_INFO']):
+ return $_SERVER['PATH_INFO'];
+ case isset($_SERVER['DOCUMENT_URI']):
+ return substr($_SERVER['DOCUMENT_URI'], strlen($_SERVER['SCRIPT_NAME']));
+ }
+ }
+
+ /**
+ * Get path to requested .scss file
+ *
+ * @return string
+ */
+ protected function findInput()
+ {
+ if (($input = $this->inputName())
+ && strpos($input, '..') === false
+ && substr($input, -5) === '.scss'
+ ) {
+ $name = $this->join($this->dir, $input);
+
+ if (is_file($name) && is_readable($name)) {
+ return $name;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Get path to cached .css file
+ *
+ * @return string
+ */
+ protected function cacheName($fname)
+ {
+ return $this->join($this->cacheDir, md5($fname) . '.css');
+ }
+
+ /**
+ * Get path to meta data
+ *
+ * @return string
+ */
+ protected function metadataName($out)
+ {
+ return $out . '.meta';
+ }
+
+ /**
+ * Determine whether .scss file needs to be re-compiled.
+ *
+ * @param string $out Output path
+ * @param string $etag ETag
+ *
+ * @return boolean True if compile required.
+ */
+ protected function needsCompile($out, &$etag)
+ {
+ if (! is_file($out)) {
+ return true;
+ }
+
+ $mtime = filemtime($out);
+
+ $metadataName = $this->metadataName($out);
+
+ if (is_readable($metadataName)) {
+ $metadata = unserialize(file_get_contents($metadataName));
+
+ foreach ($metadata['imports'] as $import => $originalMtime) {
+ $currentMtime = filemtime($import);
+
+ if ($currentMtime !== $originalMtime || $currentMtime > $mtime) {
+ return true;
+ }
+ }
+
+ $metaVars = crc32(serialize($this->scss->getVariables()));
+
+ if ($metaVars !== $metadata['vars']) {
+ return true;
+ }
+
+ $etag = $metadata['etag'];
+
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Get If-Modified-Since header from client request
+ *
+ * @return string|null
+ */
+ protected function getIfModifiedSinceHeader()
+ {
+ $modifiedSince = null;
+
+ if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
+ $modifiedSince = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
+
+ if (false !== ($semicolonPos = strpos($modifiedSince, ';'))) {
+ $modifiedSince = substr($modifiedSince, 0, $semicolonPos);
+ }
+ }
+
+ return $modifiedSince;
+ }
+
+ /**
+ * Get If-None-Match header from client request
+ *
+ * @return string|null
+ */
+ protected function getIfNoneMatchHeader()
+ {
+ $noneMatch = null;
+
+ if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
+ $noneMatch = $_SERVER['HTTP_IF_NONE_MATCH'];
+ }
+
+ return $noneMatch;
+ }
+
+ /**
+ * Compile .scss file
+ *
+ * @param string $in Input path (.scss)
+ * @param string $out Output path (.css)
+ *
+ * @return array
+ */
+ protected function compile($in, $out)
+ {
+ $start = microtime(true);
+ $css = $this->scss->compile(file_get_contents($in), $in);
+ $elapsed = round((microtime(true) - $start), 4);
+
+ $v = Version::VERSION;
+ $t = gmdate('r');
+ $css = "/* compiled by scssphp $v on $t (${elapsed}s) */\n\n" . $css;
+ $etag = md5($css);
+
+ file_put_contents($out, $css);
+ file_put_contents(
+ $this->metadataName($out),
+ serialize([
+ 'etag' => $etag,
+ 'imports' => $this->scss->getParsedFiles(),
+ 'vars' => crc32(serialize($this->scss->getVariables())),
+ ])
+ );
+
+ return [$css, $etag];
+ }
+
+ /**
+ * Format error as a pseudo-element in CSS
+ *
+ * @param \Exception $error
+ *
+ * @return string
+ */
+ protected function createErrorCSS(\Exception $error)
+ {
+ $message = str_replace(
+ ["'", "\n"],
+ ["\\'", "\\A"],
+ $error->getfile() . ":\n\n" . $error->getMessage()
+ );
+
+ return "body { display: none !important; }
+ html:after {
+ background: white;
+ color: black;
+ content: '$message';
+ display: block !important;
+ font-family: mono;
+ padding: 1em;
+ white-space: pre;
+ }";
+ }
+
+ /**
+ * Render errors as a pseudo-element within valid CSS, displaying the errors on any
+ * page that includes this CSS.
+ *
+ * @param boolean $show
+ */
+ public function showErrorsAsCSS($show = true)
+ {
+ $this->showErrorsAsCSS = $show;
+ }
+
+ /**
+ * Compile .scss file
+ *
+ * @param string $in Input file (.scss)
+ * @param string $out Output file (.css) optional
+ *
+ * @return string|bool
+ *
+ * @throws \Leafo\ScssPhp\Exception\ServerException
+ */
+ public function compileFile($in, $out = null)
+ {
+ if (! is_readable($in)) {
+ throw new ServerException('load error: failed to find ' . $in);
+ }
+
+ $pi = pathinfo($in);
+
+ $this->scss->addImportPath($pi['dirname'] . '/');
+
+ $compiled = $this->scss->compile(file_get_contents($in), $in);
+
+ if ($out !== null) {
+ return file_put_contents($out, $compiled);
+ }
+
+ return $compiled;
+ }
+
+ /**
+ * Check if file need compiling
+ *
+ * @param string $in Input file (.scss)
+ * @param string $out Output file (.css)
+ *
+ * @return bool
+ */
+ public function checkedCompile($in, $out)
+ {
+ if (! is_file($out) || filemtime($in) > filemtime($out)) {
+ $this->compileFile($in, $out);
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Compile requested scss and serve css. Outputs HTTP response.
+ *
+ * @param string $salt Prefix a string to the filename for creating the cache name hash
+ */
+ public function serve($salt = '')
+ {
+ $protocol = isset($_SERVER['SERVER_PROTOCOL'])
+ ? $_SERVER['SERVER_PROTOCOL']
+ : 'HTTP/1.0';
+
+ if ($input = $this->findInput()) {
+ $output = $this->cacheName($salt . $input);
+ $etag = $noneMatch = trim($this->getIfNoneMatchHeader(), '"');
+
+ if ($this->needsCompile($output, $etag)) {
+ try {
+ list($css, $etag) = $this->compile($input, $output);
+
+ $lastModified = gmdate('r', filemtime($output));
+
+ header('Last-Modified: ' . $lastModified);
+ header('Content-type: text/css');
+ header('ETag: "' . $etag . '"');
+
+ echo $css;
+ } catch (\Exception $e) {
+ if ($this->showErrorsAsCSS) {
+ header('Content-type: text/css');
+
+ echo $this->createErrorCSS($e);
+ } else {
+ header($protocol . ' 500 Internal Server Error');
+ header('Content-type: text/plain');
+
+ echo 'Parse error: ' . $e->getMessage() . "\n";
+ }
+ }
+
+ return;
+ }
+
+ header('X-SCSS-Cache: true');
+ header('Content-type: text/css');
+ header('ETag: "' . $etag . '"');
+
+ if ($etag === $noneMatch) {
+ header($protocol . ' 304 Not Modified');
+
+ return;
+ }
+
+ $modifiedSince = $this->getIfModifiedSinceHeader();
+ $mtime = filemtime($output);
+
+ if (strtotime($modifiedSince) === $mtime) {
+ header($protocol . ' 304 Not Modified');
+
+ return;
+ }
+
+ $lastModified = gmdate('r', $mtime);
+ header('Last-Modified: ' . $lastModified);
+
+ echo file_get_contents($output);
+
+ return;
+ }
+
+ header($protocol . ' 404 Not Found');
+ header('Content-type: text/plain');
+
+ $v = Version::VERSION;
+ echo "/* INPUT NOT FOUND scss $v */\n";
+ }
+
+ /**
+ * Based on explicit input/output files does a full change check on cache before compiling.
+ *
+ * @param string $in
+ * @param string $out
+ * @param boolean $force
+ *
+ * @return string Compiled CSS results
+ *
+ * @throws \Leafo\ScssPhp\Exception\ServerException
+ */
+ public function checkedCachedCompile($in, $out, $force = false)
+ {
+ if (! is_file($in) || ! is_readable($in)) {
+ throw new ServerException('Invalid or unreadable input file specified.');
+ }
+
+ if (is_dir($out) || ! is_writable(file_exists($out) ? $out : dirname($out))) {
+ throw new ServerException('Invalid or unwritable output file specified.');
+ }
+
+ if ($force || $this->needsCompile($out, $etag)) {
+ list($css, $etag) = $this->compile($in, $out);
+ } else {
+ $css = file_get_contents($out);
+ }
+
+ return $css;
+ }
+
+ /**
+ * Execute scssphp on a .scss file or a scssphp cache structure
+ *
+ * The scssphp cache structure contains information about a specific
+ * scss file having been parsed. It can be used as a hint for future
+ * calls to determine whether or not a rebuild is required.
+ *
+ * The cache structure contains two important keys that may be used
+ * externally:
+ *
+ * compiled: The final compiled CSS
+ * updated: The time (in seconds) the CSS was last compiled
+ *
+ * The cache structure is a plain-ol' PHP associative array and can
+ * be serialized and unserialized without a hitch.
+ *
+ * @param mixed $in Input
+ * @param boolean $force Force rebuild?
+ *
+ * @return array scssphp cache structure
+ */
+ public function cachedCompile($in, $force = false)
+ {
+ // assume no root
+ $root = null;
+
+ if (is_string($in)) {
+ $root = $in;
+ } elseif (is_array($in) and isset($in['root'])) {
+ if ($force or ! isset($in['files'])) {
+ // If we are forcing a recompile or if for some reason the
+ // structure does not contain any file information we should
+ // specify the root to trigger a rebuild.
+ $root = $in['root'];
+ } elseif (isset($in['files']) and is_array($in['files'])) {
+ foreach ($in['files'] as $fname => $ftime) {
+ if (! file_exists($fname) or filemtime($fname) > $ftime) {
+ // One of the files we knew about previously has changed
+ // so we should look at our incoming root again.
+ $root = $in['root'];
+ break;
+ }
+ }
+ }
+ } else {
+ // TODO: Throw an exception? We got neither a string nor something
+ // that looks like a compatible lessphp cache structure.
+ return null;
+ }
+
+ if ($root !== null) {
+ // If we have a root value which means we should rebuild.
+ $out = array();
+ $out['root'] = $root;
+ $out['compiled'] = $this->compileFile($root);
+ $out['files'] = $this->scss->getParsedFiles();
+ $out['updated'] = time();
+ return $out;
+ } else {
+ // No changes, pass back the structure
+ // we were given initially.
+ return $in;
+ }
+ }
+
+ /**
+ * Constructor
+ *
+ * @param string $dir Root directory to .scss files
+ * @param string $cacheDir Cache directory
+ * @param \Leafo\ScssPhp\Compiler|null $scss SCSS compiler instance
+ */
+ public function __construct($dir, $cacheDir = null, $scss = null)
+ {
+ $this->dir = $dir;
+
+ if (! isset($cacheDir)) {
+ $cacheDir = $this->join($dir, 'scss_cache');
+ }
+
+ $this->cacheDir = $cacheDir;
+
+ if (! is_dir($this->cacheDir)) {
+ throw new ServerException('Cache directory doesn\'t exist: ' . $cacheDir);
+ }
+
+ if (! isset($scss)) {
+ $scss = new Compiler();
+ $scss->setImportPaths($this->dir);
+ }
+
+ $this->scss = $scss;
+ $this->showErrorsAsCSS = false;
+
+ date_default_timezone_set('UTC');
+ }
+}
--- /dev/null
+<?php
+if (version_compare(PHP_VERSION, '5.4') < 0) {
+ throw new \Exception('scssphp requires PHP 5.4 or above');
+}
+
+if (! class_exists('Leafo\ScssPhp\Version', false)) {
+ include_once __DIR__ . '/src/Base/Range.php';
+ include_once __DIR__ . '/src/Block.php';
+ include_once __DIR__ . '/src/Colors.php';
+ include_once __DIR__ . '/src/Compiler.php';
+ include_once __DIR__ . '/src/Compiler/Environment.php';
+ include_once __DIR__ . '/src/Exception/CompilerException.php';
+ include_once __DIR__ . '/src/Exception/ParserException.php';
+ include_once __DIR__ . '/src/Exception/RangeException.php';
+ include_once __DIR__ . '/src/Exception/ServerException.php';
+ include_once __DIR__ . '/src/Formatter.php';
+ include_once __DIR__ . '/src/Formatter/Compact.php';
+ include_once __DIR__ . '/src/Formatter/Compressed.php';
+ include_once __DIR__ . '/src/Formatter/Crunched.php';
+ include_once __DIR__ . '/src/Formatter/Debug.php';
+ include_once __DIR__ . '/src/Formatter/Expanded.php';
+ include_once __DIR__ . '/src/Formatter/Nested.php';
+ include_once __DIR__ . '/src/Formatter/OutputBlock.php';
+ include_once __DIR__ . '/src/Node.php';
+ include_once __DIR__ . '/src/Node/Number.php';
+ include_once __DIR__ . '/src/Parser.php';
+ include_once __DIR__ . '/src/SourceMap/Base64VLQEncoder.php';
+ include_once __DIR__ . '/src/SourceMap/SourceMapGenerator.php';
+ include_once __DIR__ . '/src/Type.php';
+ include_once __DIR__ . '/src/Util.php';
+ include_once __DIR__ . '/src/Version.php';
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2015-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Base;
+
+/**
+ * Range
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Range
+{
+ public $first;
+ public $last;
+
+ /**
+ * Initialize range
+ *
+ * @param integer|float $first
+ * @param integer|float $last
+ */
+ public function __construct($first, $last)
+ {
+ $this->first = $first;
+ $this->last = $last;
+ }
+
+ /**
+ * Test for inclusion in range
+ *
+ * @param integer|float $value
+ *
+ * @return boolean
+ */
+ public function includes($value)
+ {
+ return $value >= $this->first && $value <= $this->last;
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+/**
+ * Block
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Block
+{
+ /**
+ * @var string
+ */
+ public $type;
+
+ /**
+ * @var \Leafo\ScssPhp\Block
+ */
+ public $parent;
+
+ /**
+ * @var string
+ */
+ public $sourceName;
+
+ /**
+ * @var integer
+ */
+ public $sourceIndex;
+
+ /**
+ * @var integer
+ */
+ public $sourceLine;
+
+ /**
+ * @var integer
+ */
+ public $sourceColumn;
+
+ /**
+ * @var array
+ */
+ public $selectors;
+
+ /**
+ * @var array
+ */
+ public $comments;
+
+ /**
+ * @var array
+ */
+ public $children;
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+/**
+ * CSS Colors
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Colors
+{
+ /**
+ * CSS Colors
+ *
+ * @see http://www.w3.org/TR/css3-color
+ *
+ * @var array
+ */
+ public static $cssColors = [
+ 'aliceblue' => '240,248,255',
+ 'antiquewhite' => '250,235,215',
+ 'aqua' => '0,255,255',
+ 'aquamarine' => '127,255,212',
+ 'azure' => '240,255,255',
+ 'beige' => '245,245,220',
+ 'bisque' => '255,228,196',
+ 'black' => '0,0,0',
+ 'blanchedalmond' => '255,235,205',
+ 'blue' => '0,0,255',
+ 'blueviolet' => '138,43,226',
+ 'brown' => '165,42,42',
+ 'burlywood' => '222,184,135',
+ 'cadetblue' => '95,158,160',
+ 'chartreuse' => '127,255,0',
+ 'chocolate' => '210,105,30',
+ 'coral' => '255,127,80',
+ 'cornflowerblue' => '100,149,237',
+ 'cornsilk' => '255,248,220',
+ 'crimson' => '220,20,60',
+ 'cyan' => '0,255,255',
+ 'darkblue' => '0,0,139',
+ 'darkcyan' => '0,139,139',
+ 'darkgoldenrod' => '184,134,11',
+ 'darkgray' => '169,169,169',
+ 'darkgreen' => '0,100,0',
+ 'darkgrey' => '169,169,169',
+ 'darkkhaki' => '189,183,107',
+ 'darkmagenta' => '139,0,139',
+ 'darkolivegreen' => '85,107,47',
+ 'darkorange' => '255,140,0',
+ 'darkorchid' => '153,50,204',
+ 'darkred' => '139,0,0',
+ 'darksalmon' => '233,150,122',
+ 'darkseagreen' => '143,188,143',
+ 'darkslateblue' => '72,61,139',
+ 'darkslategray' => '47,79,79',
+ 'darkslategrey' => '47,79,79',
+ 'darkturquoise' => '0,206,209',
+ 'darkviolet' => '148,0,211',
+ 'deeppink' => '255,20,147',
+ 'deepskyblue' => '0,191,255',
+ 'dimgray' => '105,105,105',
+ 'dimgrey' => '105,105,105',
+ 'dodgerblue' => '30,144,255',
+ 'firebrick' => '178,34,34',
+ 'floralwhite' => '255,250,240',
+ 'forestgreen' => '34,139,34',
+ 'fuchsia' => '255,0,255',
+ 'gainsboro' => '220,220,220',
+ 'ghostwhite' => '248,248,255',
+ 'gold' => '255,215,0',
+ 'goldenrod' => '218,165,32',
+ 'gray' => '128,128,128',
+ 'green' => '0,128,0',
+ 'greenyellow' => '173,255,47',
+ 'grey' => '128,128,128',
+ 'honeydew' => '240,255,240',
+ 'hotpink' => '255,105,180',
+ 'indianred' => '205,92,92',
+ 'indigo' => '75,0,130',
+ 'ivory' => '255,255,240',
+ 'khaki' => '240,230,140',
+ 'lavender' => '230,230,250',
+ 'lavenderblush' => '255,240,245',
+ 'lawngreen' => '124,252,0',
+ 'lemonchiffon' => '255,250,205',
+ 'lightblue' => '173,216,230',
+ 'lightcoral' => '240,128,128',
+ 'lightcyan' => '224,255,255',
+ 'lightgoldenrodyellow' => '250,250,210',
+ 'lightgray' => '211,211,211',
+ 'lightgreen' => '144,238,144',
+ 'lightgrey' => '211,211,211',
+ 'lightpink' => '255,182,193',
+ 'lightsalmon' => '255,160,122',
+ 'lightseagreen' => '32,178,170',
+ 'lightskyblue' => '135,206,250',
+ 'lightslategray' => '119,136,153',
+ 'lightslategrey' => '119,136,153',
+ 'lightsteelblue' => '176,196,222',
+ 'lightyellow' => '255,255,224',
+ 'lime' => '0,255,0',
+ 'limegreen' => '50,205,50',
+ 'linen' => '250,240,230',
+ 'magenta' => '255,0,255',
+ 'maroon' => '128,0,0',
+ 'mediumaquamarine' => '102,205,170',
+ 'mediumblue' => '0,0,205',
+ 'mediumorchid' => '186,85,211',
+ 'mediumpurple' => '147,112,219',
+ 'mediumseagreen' => '60,179,113',
+ 'mediumslateblue' => '123,104,238',
+ 'mediumspringgreen' => '0,250,154',
+ 'mediumturquoise' => '72,209,204',
+ 'mediumvioletred' => '199,21,133',
+ 'midnightblue' => '25,25,112',
+ 'mintcream' => '245,255,250',
+ 'mistyrose' => '255,228,225',
+ 'moccasin' => '255,228,181',
+ 'navajowhite' => '255,222,173',
+ 'navy' => '0,0,128',
+ 'oldlace' => '253,245,230',
+ 'olive' => '128,128,0',
+ 'olivedrab' => '107,142,35',
+ 'orange' => '255,165,0',
+ 'orangered' => '255,69,0',
+ 'orchid' => '218,112,214',
+ 'palegoldenrod' => '238,232,170',
+ 'palegreen' => '152,251,152',
+ 'paleturquoise' => '175,238,238',
+ 'palevioletred' => '219,112,147',
+ 'papayawhip' => '255,239,213',
+ 'peachpuff' => '255,218,185',
+ 'peru' => '205,133,63',
+ 'pink' => '255,192,203',
+ 'plum' => '221,160,221',
+ 'powderblue' => '176,224,230',
+ 'purple' => '128,0,128',
+ 'rebeccapurple' => '102,51,153',
+ 'red' => '255,0,0',
+ 'rosybrown' => '188,143,143',
+ 'royalblue' => '65,105,225',
+ 'saddlebrown' => '139,69,19',
+ 'salmon' => '250,128,114',
+ 'sandybrown' => '244,164,96',
+ 'seagreen' => '46,139,87',
+ 'seashell' => '255,245,238',
+ 'sienna' => '160,82,45',
+ 'silver' => '192,192,192',
+ 'skyblue' => '135,206,235',
+ 'slateblue' => '106,90,205',
+ 'slategray' => '112,128,144',
+ 'slategrey' => '112,128,144',
+ 'snow' => '255,250,250',
+ 'springgreen' => '0,255,127',
+ 'steelblue' => '70,130,180',
+ 'tan' => '210,180,140',
+ 'teal' => '0,128,128',
+ 'thistle' => '216,191,216',
+ 'tomato' => '255,99,71',
+ 'transparent' => '0,0,0,0',
+ 'turquoise' => '64,224,208',
+ 'violet' => '238,130,238',
+ 'wheat' => '245,222,179',
+ 'white' => '255,255,255',
+ 'whitesmoke' => '245,245,245',
+ 'yellow' => '255,255,0',
+ 'yellowgreen' => '154,205,50',
+ ];
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+use Leafo\ScssPhp\Base\Range;
+use Leafo\ScssPhp\Block;
+use Leafo\ScssPhp\Colors;
+use Leafo\ScssPhp\Compiler\Environment;
+use Leafo\ScssPhp\Exception\CompilerException;
+use Leafo\ScssPhp\Formatter\OutputBlock;
+use Leafo\ScssPhp\Node;
+use Leafo\ScssPhp\SourceMap\SourceMapGenerator;
+use Leafo\ScssPhp\Type;
+use Leafo\ScssPhp\Parser;
+use Leafo\ScssPhp\Util;
+
+/**
+ * The scss compiler and parser.
+ *
+ * Converting SCSS to CSS is a three stage process. The incoming file is parsed
+ * by `Parser` into a syntax tree, then it is compiled into another tree
+ * representing the CSS structure by `Compiler`. The CSS tree is fed into a
+ * formatter, like `Formatter` which then outputs CSS as a string.
+ *
+ * During the first compile, all values are *reduced*, which means that their
+ * types are brought to the lowest form before being dump as strings. This
+ * handles math equations, variable dereferences, and the like.
+ *
+ * The `compile` function of `Compiler` is the entry point.
+ *
+ * In summary:
+ *
+ * The `Compiler` class creates an instance of the parser, feeds it SCSS code,
+ * then transforms the resulting tree to a CSS tree. This class also holds the
+ * evaluation context, such as all available mixins and variables at any given
+ * time.
+ *
+ * The `Parser` class is only concerned with parsing its input.
+ *
+ * The `Formatter` takes a CSS tree, and dumps it to a formatted string,
+ * handling things like indentation.
+ */
+
+/**
+ * SCSS compiler
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Compiler
+{
+ const LINE_COMMENTS = 1;
+ const DEBUG_INFO = 2;
+
+ const WITH_RULE = 1;
+ const WITH_MEDIA = 2;
+ const WITH_SUPPORTS = 4;
+ const WITH_ALL = 7;
+
+ const SOURCE_MAP_NONE = 0;
+ const SOURCE_MAP_INLINE = 1;
+ const SOURCE_MAP_FILE = 2;
+
+ /**
+ * @var array
+ */
+ static protected $operatorNames = [
+ '+' => 'add',
+ '-' => 'sub',
+ '*' => 'mul',
+ '/' => 'div',
+ '%' => 'mod',
+
+ '==' => 'eq',
+ '!=' => 'neq',
+ '<' => 'lt',
+ '>' => 'gt',
+
+ '<=' => 'lte',
+ '>=' => 'gte',
+ '<=>' => 'cmp',
+ ];
+
+ /**
+ * @var array
+ */
+ static protected $namespaces = [
+ 'special' => '%',
+ 'mixin' => '@',
+ 'function' => '^',
+ ];
+
+ static public $true = [Type::T_KEYWORD, 'true'];
+ static public $false = [Type::T_KEYWORD, 'false'];
+ static public $null = [Type::T_NULL];
+ static public $nullString = [Type::T_STRING, '', []];
+ static public $defaultValue = [Type::T_KEYWORD, ''];
+ static public $selfSelector = [Type::T_SELF];
+ static public $emptyList = [Type::T_LIST, '', []];
+ static public $emptyMap = [Type::T_MAP, [], []];
+ static public $emptyString = [Type::T_STRING, '"', []];
+ static public $with = [Type::T_KEYWORD, 'with'];
+ static public $without = [Type::T_KEYWORD, 'without'];
+
+ protected $importPaths = [''];
+ protected $importCache = [];
+ protected $importedFiles = [];
+ protected $userFunctions = [];
+ protected $registeredVars = [];
+ protected $registeredFeatures = [
+ 'extend-selector-pseudoclass' => false,
+ 'at-error' => true,
+ 'units-level-3' => false,
+ 'global-variable-shadowing' => false,
+ ];
+
+ protected $encoding = null;
+ protected $lineNumberStyle = null;
+
+ protected $sourceMap = self::SOURCE_MAP_NONE;
+ protected $sourceMapOptions = [];
+
+ /**
+ * @var string|\Leafo\ScssPhp\Formatter
+ */
+ protected $formatter = 'Leafo\ScssPhp\Formatter\Nested';
+
+ protected $rootEnv;
+ protected $rootBlock;
+
+ /**
+ * @var \Leafo\ScssPhp\Compiler\Environment
+ */
+ protected $env;
+ protected $scope;
+ protected $storeEnv;
+ protected $charsetSeen;
+ protected $sourceNames;
+
+ private $indentLevel;
+ private $commentsSeen;
+ private $extends;
+ private $extendsMap;
+ private $parsedFiles;
+ private $parser;
+ private $sourceIndex;
+ private $sourceLine;
+ private $sourceColumn;
+ private $stderr;
+ private $shouldEvaluate;
+ private $ignoreErrors;
+
+ /**
+ * Constructor
+ */
+ public function __construct()
+ {
+ $this->parsedFiles = [];
+ $this->sourceNames = [];
+ }
+
+ /**
+ * Compile scss
+ *
+ * @api
+ *
+ * @param string $code
+ * @param string $path
+ *
+ * @return string
+ */
+ public function compile($code, $path = null)
+ {
+ $this->indentLevel = -1;
+ $this->commentsSeen = [];
+ $this->extends = [];
+ $this->extendsMap = [];
+ $this->sourceIndex = null;
+ $this->sourceLine = null;
+ $this->sourceColumn = null;
+ $this->env = null;
+ $this->scope = null;
+ $this->storeEnv = null;
+ $this->charsetSeen = null;
+ $this->shouldEvaluate = null;
+ $this->stderr = fopen('php://stderr', 'w');
+
+ $this->parser = $this->parserFactory($path);
+ $tree = $this->parser->parse($code);
+ $this->parser = null;
+
+ $this->formatter = new $this->formatter();
+ $this->rootBlock = null;
+ $this->rootEnv = $this->pushEnv($tree);
+
+ $this->injectVariables($this->registeredVars);
+ $this->compileRoot($tree);
+ $this->popEnv();
+
+ $sourceMapGenerator = null;
+
+ if ($this->sourceMap) {
+ if (is_object($this->sourceMap) && $this->sourceMap instanceof SourceMapGenerator) {
+ $sourceMapGenerator = $this->sourceMap;
+ $this->sourceMap = self::SOURCE_MAP_FILE;
+ } elseif ($this->sourceMap !== self::SOURCE_MAP_NONE) {
+ $sourceMapGenerator = new SourceMapGenerator($this->sourceMapOptions);
+ }
+ }
+
+ $out = $this->formatter->format($this->scope, $sourceMapGenerator);
+
+ if (! empty($out) && $this->sourceMap && $this->sourceMap !== self::SOURCE_MAP_NONE) {
+ $sourceMap = $sourceMapGenerator->generateJson();
+ $sourceMapUrl = null;
+
+ switch ($this->sourceMap) {
+ case self::SOURCE_MAP_INLINE:
+ $sourceMapUrl = sprintf('data:application/json,%s', Util::encodeURIComponent($sourceMap));
+ break;
+
+ case self::SOURCE_MAP_FILE:
+ $sourceMapUrl = $sourceMapGenerator->saveMap($sourceMap);
+ break;
+ }
+
+ $out .= sprintf('/*# sourceMappingURL=%s */', $sourceMapUrl);
+ }
+
+ return $out;
+ }
+
+ /**
+ * Instantiate parser
+ *
+ * @param string $path
+ *
+ * @return \Leafo\ScssPhp\Parser
+ */
+ protected function parserFactory($path)
+ {
+ $parser = new Parser($path, count($this->sourceNames), $this->encoding);
+
+ $this->sourceNames[] = $path;
+ $this->addParsedFile($path);
+
+ return $parser;
+ }
+
+ /**
+ * Is self extend?
+ *
+ * @param array $target
+ * @param array $origin
+ *
+ * @return boolean
+ */
+ protected function isSelfExtend($target, $origin)
+ {
+ foreach ($origin as $sel) {
+ if (in_array($target, $sel)) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Push extends
+ *
+ * @param array $target
+ * @param array $origin
+ * @param \stdClass $block
+ */
+ protected function pushExtends($target, $origin, $block)
+ {
+ if ($this->isSelfExtend($target, $origin)) {
+ return;
+ }
+
+ $i = count($this->extends);
+ $this->extends[] = [$target, $origin, $block];
+
+ foreach ($target as $part) {
+ if (isset($this->extendsMap[$part])) {
+ $this->extendsMap[$part][] = $i;
+ } else {
+ $this->extendsMap[$part] = [$i];
+ }
+ }
+ }
+
+ /**
+ * Make output block
+ *
+ * @param string $type
+ * @param array $selectors
+ *
+ * @return \Leafo\ScssPhp\Formatter\OutputBlock
+ */
+ protected function makeOutputBlock($type, $selectors = null)
+ {
+ $out = new OutputBlock;
+ $out->type = $type;
+ $out->lines = [];
+ $out->children = [];
+ $out->parent = $this->scope;
+ $out->selectors = $selectors;
+ $out->depth = $this->env->depth;
+
+ if ($this->env->block instanceof Block) {
+ $out->sourceName = $this->env->block->sourceName;
+ $out->sourceLine = $this->env->block->sourceLine;
+ $out->sourceColumn = $this->env->block->sourceColumn;
+ } else {
+ $out->sourceName = null;
+ $out->sourceLine = null;
+ $out->sourceColumn = null;
+ }
+
+ return $out;
+ }
+
+ /**
+ * Compile root
+ *
+ * @param \Leafo\ScssPhp\Block $rootBlock
+ */
+ protected function compileRoot(Block $rootBlock)
+ {
+ $this->rootBlock = $this->scope = $this->makeOutputBlock(Type::T_ROOT);
+
+ $this->compileChildrenNoReturn($rootBlock->children, $this->scope);
+ $this->flattenSelectors($this->scope);
+ $this->missingSelectors();
+ }
+
+ /**
+ * Report missing selectors
+ */
+ protected function missingSelectors()
+ {
+ foreach ($this->extends as $extend) {
+ if (isset($extend[3])) {
+ continue;
+ }
+
+ list($target, $origin, $block) = $extend;
+
+ // ignore if !optional
+ if ($block[2]) {
+ continue;
+ }
+
+ $target = implode(' ', $target);
+ $origin = $this->collapseSelectors($origin);
+
+ $this->sourceLine = $block[Parser::SOURCE_LINE];
+ $this->throwError("\"$origin\" failed to @extend \"$target\". The selector \"$target\" was not found.");
+ }
+ }
+
+ /**
+ * Flatten selectors
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block
+ * @param string $parentKey
+ */
+ protected function flattenSelectors(OutputBlock $block, $parentKey = null)
+ {
+ if ($block->selectors) {
+ $selectors = [];
+
+ foreach ($block->selectors as $s) {
+ $selectors[] = $s;
+
+ if (! is_array($s)) {
+ continue;
+ }
+
+ // check extends
+ if (! empty($this->extendsMap)) {
+ $this->matchExtends($s, $selectors);
+
+ // remove duplicates
+ array_walk($selectors, function (&$value) {
+ $value = serialize($value);
+ });
+
+ $selectors = array_unique($selectors);
+
+ array_walk($selectors, function (&$value) {
+ $value = unserialize($value);
+ });
+ }
+ }
+
+ $block->selectors = [];
+ $placeholderSelector = false;
+
+ foreach ($selectors as $selector) {
+ if ($this->hasSelectorPlaceholder($selector)) {
+ $placeholderSelector = true;
+ continue;
+ }
+
+ $block->selectors[] = $this->compileSelector($selector);
+ }
+
+ if ($placeholderSelector && 0 === count($block->selectors) && null !== $parentKey) {
+ unset($block->parent->children[$parentKey]);
+
+ return;
+ }
+ }
+
+ foreach ($block->children as $key => $child) {
+ $this->flattenSelectors($child, $key);
+ }
+ }
+
+ /**
+ * Match extends
+ *
+ * @param array $selector
+ * @param array $out
+ * @param integer $from
+ * @param boolean $initial
+ */
+ protected function matchExtends($selector, &$out, $from = 0, $initial = true)
+ {
+ foreach ($selector as $i => $part) {
+ if ($i < $from) {
+ continue;
+ }
+
+ if ($this->matchExtendsSingle($part, $origin)) {
+ $after = array_slice($selector, $i + 1);
+ $before = array_slice($selector, 0, $i);
+
+ list($before, $nonBreakableBefore) = $this->extractRelationshipFromFragment($before);
+
+ foreach ($origin as $new) {
+ $k = 0;
+
+ // remove shared parts
+ if ($initial) {
+ while ($k < $i && isset($new[$k]) && $selector[$k] === $new[$k]) {
+ $k++;
+ }
+ }
+
+ $replacement = [];
+ $tempReplacement = $k > 0 ? array_slice($new, $k) : $new;
+
+ for ($l = count($tempReplacement) - 1; $l >= 0; $l--) {
+ $slice = $tempReplacement[$l];
+ array_unshift($replacement, $slice);
+
+ if (! $this->isImmediateRelationshipCombinator(end($slice))) {
+ break;
+ }
+ }
+
+ $afterBefore = $l != 0 ? array_slice($tempReplacement, 0, $l) : [];
+
+ // Merge shared direct relationships.
+ $mergedBefore = $this->mergeDirectRelationships($afterBefore, $nonBreakableBefore);
+
+ $result = array_merge(
+ $before,
+ $mergedBefore,
+ $replacement,
+ $after
+ );
+
+ if ($result === $selector) {
+ continue;
+ }
+
+ $out[] = $result;
+
+ // recursively check for more matches
+ $this->matchExtends($result, $out, count($before) + count($mergedBefore), false);
+
+ // selector sequence merging
+ if (! empty($before) && count($new) > 1) {
+ $sharedParts = $k > 0 ? array_slice($before, 0, $k) : [];
+ $postSharedParts = $k > 0 ? array_slice($before, $k) : $before;
+
+ list($injectBetweenSharedParts, $nonBreakable2) = $this->extractRelationshipFromFragment($afterBefore);
+
+ $result2 = array_merge(
+ $sharedParts,
+ $injectBetweenSharedParts,
+ $postSharedParts,
+ $nonBreakable2,
+ $nonBreakableBefore,
+ $replacement,
+ $after
+ );
+
+ $out[] = $result2;
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * Match extends single
+ *
+ * @param array $rawSingle
+ * @param array $outOrigin
+ *
+ * @return boolean
+ */
+ protected function matchExtendsSingle($rawSingle, &$outOrigin)
+ {
+ $counts = [];
+ $single = [];
+
+ foreach ($rawSingle as $part) {
+ // matches Number
+ if (! is_string($part)) {
+ return false;
+ }
+
+ if (! preg_match('/^[\[.:#%]/', $part) && count($single)) {
+ $single[count($single) - 1] .= $part;
+ } else {
+ $single[] = $part;
+ }
+ }
+
+ $extendingDecoratedTag = false;
+
+ if (count($single) > 1) {
+ $matches = null;
+ $extendingDecoratedTag = preg_match('/^[a-z0-9]+$/i', $single[0], $matches) ? $matches[0] : false;
+ }
+
+ foreach ($single as $part) {
+ if (isset($this->extendsMap[$part])) {
+ foreach ($this->extendsMap[$part] as $idx) {
+ $counts[$idx] = isset($counts[$idx]) ? $counts[$idx] + 1 : 1;
+ }
+ }
+ }
+
+ $outOrigin = [];
+ $found = false;
+
+ foreach ($counts as $idx => $count) {
+ list($target, $origin, /* $block */) = $this->extends[$idx];
+
+ // check count
+ if ($count !== count($target)) {
+ continue;
+ }
+
+ $this->extends[$idx][3] = true;
+
+ $rem = array_diff($single, $target);
+
+ foreach ($origin as $j => $new) {
+ // prevent infinite loop when target extends itself
+ if ($this->isSelfExtend($single, $origin)) {
+ return false;
+ }
+
+ $replacement = end($new);
+
+ // Extending a decorated tag with another tag is not possible.
+ if ($extendingDecoratedTag && $replacement[0] != $extendingDecoratedTag &&
+ preg_match('/^[a-z0-9]+$/i', $replacement[0])
+ ) {
+ unset($origin[$j]);
+ continue;
+ }
+
+ $combined = $this->combineSelectorSingle($replacement, $rem);
+
+ if (count(array_diff($combined, $origin[$j][count($origin[$j]) - 1]))) {
+ $origin[$j][count($origin[$j]) - 1] = $combined;
+ }
+ }
+
+ $outOrigin = array_merge($outOrigin, $origin);
+
+ $found = true;
+ }
+
+ return $found;
+ }
+
+
+ /**
+ * Extract a relationship from the fragment.
+ *
+ * When extracting the last portion of a selector we will be left with a
+ * fragment which may end with a direction relationship combinator. This
+ * method will extract the relationship fragment and return it along side
+ * the rest.
+ *
+ * @param array $fragment The selector fragment maybe ending with a direction relationship combinator.
+ * @return array The selector without the relationship fragment if any, the relationship fragment.
+ */
+ protected function extractRelationshipFromFragment(array $fragment)
+ {
+ $parents = [];
+ $children = [];
+ $j = $i = count($fragment);
+
+ for (;;) {
+ $children = $j != $i ? array_slice($fragment, $j, $i - $j) : [];
+ $parents = array_slice($fragment, 0, $j);
+ $slice = end($parents);
+
+ if (empty($slice) || ! $this->isImmediateRelationshipCombinator($slice[0])) {
+ break;
+ }
+
+ $j -= 2;
+ }
+
+ return [$parents, $children];
+ }
+
+ /**
+ * Combine selector single
+ *
+ * @param array $base
+ * @param array $other
+ *
+ * @return array
+ */
+ protected function combineSelectorSingle($base, $other)
+ {
+ $tag = [];
+ $out = [];
+ $wasTag = true;
+
+ foreach ([$base, $other] as $single) {
+ foreach ($single as $part) {
+ if (preg_match('/^[\[.:#]/', $part)) {
+ $out[] = $part;
+ $wasTag = false;
+ } elseif (preg_match('/^[^_-]/', $part)) {
+ $tag[] = $part;
+ $wasTag = true;
+ } elseif ($wasTag) {
+ $tag[count($tag) - 1] .= $part;
+ } else {
+ $out[count($out) - 1] .= $part;
+ }
+ }
+ }
+
+ if (count($tag)) {
+ array_unshift($out, $tag[0]);
+ }
+
+ return $out;
+ }
+
+ /**
+ * Compile media
+ *
+ * @param \Leafo\ScssPhp\Block $media
+ */
+ protected function compileMedia(Block $media)
+ {
+ $this->pushEnv($media);
+
+ $mediaQuery = $this->compileMediaQuery($this->multiplyMedia($this->env));
+
+ if (! empty($mediaQuery)) {
+ $this->scope = $this->makeOutputBlock(Type::T_MEDIA, [$mediaQuery]);
+
+ $parentScope = $this->mediaParent($this->scope);
+ $parentScope->children[] = $this->scope;
+
+ // top level properties in a media cause it to be wrapped
+ $needsWrap = false;
+
+ foreach ($media->children as $child) {
+ $type = $child[0];
+
+ if ($type !== Type::T_BLOCK &&
+ $type !== Type::T_MEDIA &&
+ $type !== Type::T_DIRECTIVE &&
+ $type !== Type::T_IMPORT
+ ) {
+ $needsWrap = true;
+ break;
+ }
+ }
+
+ if ($needsWrap) {
+ $wrapped = new Block;
+ $wrapped->sourceName = $media->sourceName;
+ $wrapped->sourceIndex = $media->sourceIndex;
+ $wrapped->sourceLine = $media->sourceLine;
+ $wrapped->sourceColumn = $media->sourceColumn;
+ $wrapped->selectors = [];
+ $wrapped->comments = [];
+ $wrapped->parent = $media;
+ $wrapped->children = $media->children;
+
+ $media->children = [[Type::T_BLOCK, $wrapped]];
+ }
+
+ $this->compileChildrenNoReturn($media->children, $this->scope);
+
+ $this->scope = $this->scope->parent;
+ }
+
+ $this->popEnv();
+ }
+
+ /**
+ * Media parent
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $scope
+ *
+ * @return \Leafo\ScssPhp\Formatter\OutputBlock
+ */
+ protected function mediaParent(OutputBlock $scope)
+ {
+ while (! empty($scope->parent)) {
+ if (! empty($scope->type) && $scope->type !== Type::T_MEDIA) {
+ break;
+ }
+
+ $scope = $scope->parent;
+ }
+
+ return $scope;
+ }
+
+ /**
+ * Compile directive
+ *
+ * @param \Leafo\ScssPhp\Block $block
+ */
+ protected function compileDirective(Block $block)
+ {
+ $s = '@' . $block->name;
+
+ if (! empty($block->value)) {
+ $s .= ' ' . $this->compileValue($block->value);
+ }
+
+ if ($block->name === 'keyframes' || substr($block->name, -10) === '-keyframes') {
+ $this->compileKeyframeBlock($block, [$s]);
+ } else {
+ $this->compileNestedBlock($block, [$s]);
+ }
+ }
+
+ /**
+ * Compile at-root
+ *
+ * @param \Leafo\ScssPhp\Block $block
+ */
+ protected function compileAtRoot(Block $block)
+ {
+ $env = $this->pushEnv($block);
+ $envs = $this->compactEnv($env);
+ $without = isset($block->with) ? $this->compileWith($block->with) : static::WITH_RULE;
+
+ // wrap inline selector
+ if ($block->selector) {
+ $wrapped = new Block;
+ $wrapped->sourceName = $block->sourceName;
+ $wrapped->sourceIndex = $block->sourceIndex;
+ $wrapped->sourceLine = $block->sourceLine;
+ $wrapped->sourceColumn = $block->sourceColumn;
+ $wrapped->selectors = $block->selector;
+ $wrapped->comments = [];
+ $wrapped->parent = $block;
+ $wrapped->children = $block->children;
+
+ $block->children = [[Type::T_BLOCK, $wrapped]];
+ }
+
+ $this->env = $this->filterWithout($envs, $without);
+ $newBlock = $this->spliceTree($envs, $block, $without);
+
+ $saveScope = $this->scope;
+ $this->scope = $this->rootBlock;
+
+ $this->compileChild($newBlock, $this->scope);
+
+ $this->scope = $saveScope;
+ $this->env = $this->extractEnv($envs);
+
+ $this->popEnv();
+ }
+
+ /**
+ * Splice parse tree
+ *
+ * @param array $envs
+ * @param \Leafo\ScssPhp\Block $block
+ * @param integer $without
+ *
+ * @return array
+ */
+ private function spliceTree($envs, Block $block, $without)
+ {
+ $newBlock = null;
+
+ foreach ($envs as $e) {
+ if (! isset($e->block)) {
+ continue;
+ }
+
+ if ($e->block === $block) {
+ continue;
+ }
+
+ if (isset($e->block->type) && $e->block->type === Type::T_AT_ROOT) {
+ continue;
+ }
+
+ if ($e->block && $this->isWithout($without, $e->block)) {
+ continue;
+ }
+
+ $b = new Block;
+ $b->sourceName = $e->block->sourceName;
+ $b->sourceIndex = $e->block->sourceIndex;
+ $b->sourceLine = $e->block->sourceLine;
+ $b->sourceColumn = $e->block->sourceColumn;
+ $b->selectors = [];
+ $b->comments = $e->block->comments;
+ $b->parent = null;
+
+ if ($newBlock) {
+ $type = isset($newBlock->type) ? $newBlock->type : Type::T_BLOCK;
+
+ $b->children = [[$type, $newBlock]];
+
+ $newBlock->parent = $b;
+ } elseif (count($block->children)) {
+ foreach ($block->children as $child) {
+ if ($child[0] === Type::T_BLOCK) {
+ $child[1]->parent = $b;
+ }
+ }
+
+ $b->children = $block->children;
+ }
+
+ if (isset($e->block->type)) {
+ $b->type = $e->block->type;
+ }
+
+ if (isset($e->block->name)) {
+ $b->name = $e->block->name;
+ }
+
+ if (isset($e->block->queryList)) {
+ $b->queryList = $e->block->queryList;
+ }
+
+ if (isset($e->block->value)) {
+ $b->value = $e->block->value;
+ }
+
+ $newBlock = $b;
+ }
+
+ $type = isset($newBlock->type) ? $newBlock->type : Type::T_BLOCK;
+
+ return [$type, $newBlock];
+ }
+
+ /**
+ * Compile @at-root's with: inclusion / without: exclusion into filter flags
+ *
+ * @param array $with
+ *
+ * @return integer
+ */
+ private function compileWith($with)
+ {
+ static $mapping = [
+ 'rule' => self::WITH_RULE,
+ 'media' => self::WITH_MEDIA,
+ 'supports' => self::WITH_SUPPORTS,
+ 'all' => self::WITH_ALL,
+ ];
+
+ // exclude selectors by default
+ $without = static::WITH_RULE;
+
+ if ($this->libMapHasKey([$with, static::$with])) {
+ $without = static::WITH_ALL;
+
+ $list = $this->coerceList($this->libMapGet([$with, static::$with]));
+
+ foreach ($list[2] as $item) {
+ $keyword = $this->compileStringContent($this->coerceString($item));
+
+ if (array_key_exists($keyword, $mapping)) {
+ $without &= ~($mapping[$keyword]);
+ }
+ }
+ }
+
+ if ($this->libMapHasKey([$with, static::$without])) {
+ $without = 0;
+
+ $list = $this->coerceList($this->libMapGet([$with, static::$without]));
+
+ foreach ($list[2] as $item) {
+ $keyword = $this->compileStringContent($this->coerceString($item));
+
+ if (array_key_exists($keyword, $mapping)) {
+ $without |= $mapping[$keyword];
+ }
+ }
+ }
+
+ return $without;
+ }
+
+ /**
+ * Filter env stack
+ *
+ * @param array $envs
+ * @param integer $without
+ *
+ * @return \Leafo\ScssPhp\Compiler\Environment
+ */
+ private function filterWithout($envs, $without)
+ {
+ $filtered = [];
+
+ foreach ($envs as $e) {
+ if ($e->block && $this->isWithout($without, $e->block)) {
+ continue;
+ }
+
+ $filtered[] = $e;
+ }
+
+ return $this->extractEnv($filtered);
+ }
+
+ /**
+ * Filter WITH rules
+ *
+ * @param integer $without
+ * @param \Leafo\ScssPhp\Block $block
+ *
+ * @return boolean
+ */
+ private function isWithout($without, Block $block)
+ {
+ if ((($without & static::WITH_RULE) && isset($block->selectors)) ||
+ (($without & static::WITH_MEDIA) &&
+ isset($block->type) && $block->type === Type::T_MEDIA) ||
+ (($without & static::WITH_SUPPORTS) &&
+ isset($block->type) && $block->type === Type::T_DIRECTIVE &&
+ isset($block->name) && $block->name === 'supports')
+ ) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Compile keyframe block
+ *
+ * @param \Leafo\ScssPhp\Block $block
+ * @param array $selectors
+ */
+ protected function compileKeyframeBlock(Block $block, $selectors)
+ {
+ $env = $this->pushEnv($block);
+
+ $envs = $this->compactEnv($env);
+
+ $this->env = $this->extractEnv(array_filter($envs, function (Environment $e) {
+ return ! isset($e->block->selectors);
+ }));
+
+ $this->scope = $this->makeOutputBlock($block->type, $selectors);
+ $this->scope->depth = 1;
+ $this->scope->parent->children[] = $this->scope;
+
+ $this->compileChildrenNoReturn($block->children, $this->scope);
+
+ $this->scope = $this->scope->parent;
+ $this->env = $this->extractEnv($envs);
+
+ $this->popEnv();
+ }
+
+ /**
+ * Compile nested block
+ *
+ * @param \Leafo\ScssPhp\Block $block
+ * @param array $selectors
+ */
+ protected function compileNestedBlock(Block $block, $selectors)
+ {
+ $this->pushEnv($block);
+
+ $this->scope = $this->makeOutputBlock($block->type, $selectors);
+ $this->scope->parent->children[] = $this->scope;
+
+ $this->compileChildrenNoReturn($block->children, $this->scope);
+
+ $this->scope = $this->scope->parent;
+
+ $this->popEnv();
+ }
+
+ /**
+ * Recursively compiles a block.
+ *
+ * A block is analogous to a CSS block in most cases. A single SCSS document
+ * is encapsulated in a block when parsed, but it does not have parent tags
+ * so all of its children appear on the root level when compiled.
+ *
+ * Blocks are made up of selectors and children.
+ *
+ * The children of a block are just all the blocks that are defined within.
+ *
+ * Compiling the block involves pushing a fresh environment on the stack,
+ * and iterating through the props, compiling each one.
+ *
+ * @see Compiler::compileChild()
+ *
+ * @param \Leafo\ScssPhp\Block $block
+ */
+ protected function compileBlock(Block $block)
+ {
+ $env = $this->pushEnv($block);
+ $env->selectors = $this->evalSelectors($block->selectors);
+
+ $out = $this->makeOutputBlock(null);
+
+ if (isset($this->lineNumberStyle) && count($env->selectors) && count($block->children)) {
+ $annotation = $this->makeOutputBlock(Type::T_COMMENT);
+ $annotation->depth = 0;
+
+ $file = $this->sourceNames[$block->sourceIndex];
+ $line = $block->sourceLine;
+
+ switch ($this->lineNumberStyle) {
+ case static::LINE_COMMENTS:
+ $annotation->lines[] = '/* line ' . $line
+ . ($file ? ', ' . $file : '')
+ . ' */';
+ break;
+
+ case static::DEBUG_INFO:
+ $annotation->lines[] = '@media -sass-debug-info{'
+ . ($file ? 'filename{font-family:"' . $file . '"}' : '')
+ . 'line{font-family:' . $line . '}}';
+ break;
+ }
+
+ $this->scope->children[] = $annotation;
+ }
+
+ $this->scope->children[] = $out;
+
+ if (count($block->children)) {
+ $out->selectors = $this->multiplySelectors($env);
+
+ $this->compileChildrenNoReturn($block->children, $out);
+ }
+
+ $this->formatter->stripSemicolon($out->lines);
+
+ $this->popEnv();
+ }
+
+ /**
+ * Compile root level comment
+ *
+ * @param array $block
+ */
+ protected function compileComment($block)
+ {
+ $out = $this->makeOutputBlock(Type::T_COMMENT);
+ $out->lines[] = $block[1];
+ $this->scope->children[] = $out;
+ }
+
+ /**
+ * Evaluate selectors
+ *
+ * @param array $selectors
+ *
+ * @return array
+ */
+ protected function evalSelectors($selectors)
+ {
+ $this->shouldEvaluate = false;
+
+ $selectors = array_map([$this, 'evalSelector'], $selectors);
+
+ // after evaluating interpolates, we might need a second pass
+ if ($this->shouldEvaluate) {
+ $buffer = $this->collapseSelectors($selectors);
+ $parser = $this->parserFactory(__METHOD__);
+
+ if ($parser->parseSelector($buffer, $newSelectors)) {
+ $selectors = array_map([$this, 'evalSelector'], $newSelectors);
+ }
+ }
+
+ return $selectors;
+ }
+
+ /**
+ * Evaluate selector
+ *
+ * @param array $selector
+ *
+ * @return array
+ */
+ protected function evalSelector($selector)
+ {
+ return array_map([$this, 'evalSelectorPart'], $selector);
+ }
+
+ /**
+ * Evaluate selector part; replaces all the interpolates, stripping quotes
+ *
+ * @param array $part
+ *
+ * @return array
+ */
+ protected function evalSelectorPart($part)
+ {
+ foreach ($part as &$p) {
+ if (is_array($p) && ($p[0] === Type::T_INTERPOLATE || $p[0] === Type::T_STRING)) {
+ $p = $this->compileValue($p);
+
+ // force re-evaluation
+ if (strpos($p, '&') !== false || strpos($p, ',') !== false) {
+ $this->shouldEvaluate = true;
+ }
+ } elseif (is_string($p) && strlen($p) >= 2 &&
+ ($first = $p[0]) && ($first === '"' || $first === "'") &&
+ substr($p, -1) === $first
+ ) {
+ $p = substr($p, 1, -1);
+ }
+ }
+
+ return $this->flattenSelectorSingle($part);
+ }
+
+ /**
+ * Collapse selectors
+ *
+ * @param array $selectors
+ *
+ * @return string
+ */
+ protected function collapseSelectors($selectors)
+ {
+ $parts = [];
+
+ foreach ($selectors as $selector) {
+ $output = '';
+
+ array_walk_recursive(
+ $selector,
+ function ($value, $key) use (&$output) {
+ $output .= $value;
+ }
+ );
+
+ $parts[] = $output;
+ }
+
+ return implode(', ', $parts);
+ }
+
+ /**
+ * Flatten selector single; joins together .classes and #ids
+ *
+ * @param array $single
+ *
+ * @return array
+ */
+ protected function flattenSelectorSingle($single)
+ {
+ $joined = [];
+
+ foreach ($single as $part) {
+ if (empty($joined) ||
+ ! is_string($part) ||
+ preg_match('/[\[.:#%]/', $part)
+ ) {
+ $joined[] = $part;
+ continue;
+ }
+
+ if (is_array(end($joined))) {
+ $joined[] = $part;
+ } else {
+ $joined[count($joined) - 1] .= $part;
+ }
+ }
+
+ return $joined;
+ }
+
+ /**
+ * Compile selector to string; self(&) should have been replaced by now
+ *
+ * @param string|array $selector
+ *
+ * @return string
+ */
+ protected function compileSelector($selector)
+ {
+ if (! is_array($selector)) {
+ return $selector; // media and the like
+ }
+
+ return implode(
+ ' ',
+ array_map(
+ [$this, 'compileSelectorPart'],
+ $selector
+ )
+ );
+ }
+
+ /**
+ * Compile selector part
+ *
+ * @param array $piece
+ *
+ * @return string
+ */
+ protected function compileSelectorPart($piece)
+ {
+ foreach ($piece as &$p) {
+ if (! is_array($p)) {
+ continue;
+ }
+
+ switch ($p[0]) {
+ case Type::T_SELF:
+ $p = '&';
+ break;
+
+ default:
+ $p = $this->compileValue($p);
+ break;
+ }
+ }
+
+ return implode($piece);
+ }
+
+ /**
+ * Has selector placeholder?
+ *
+ * @param array $selector
+ *
+ * @return boolean
+ */
+ protected function hasSelectorPlaceholder($selector)
+ {
+ if (! is_array($selector)) {
+ return false;
+ }
+
+ foreach ($selector as $parts) {
+ foreach ($parts as $part) {
+ if (strlen($part) && '%' === $part[0]) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Compile children and return result
+ *
+ * @param array $stms
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $out
+ *
+ * @return array
+ */
+ protected function compileChildren($stms, OutputBlock $out)
+ {
+ foreach ($stms as $stm) {
+ $ret = $this->compileChild($stm, $out);
+
+ if (isset($ret)) {
+ return $ret;
+ }
+ }
+ }
+
+ /**
+ * Compile children and throw exception if unexpected @return
+ *
+ * @param array $stms
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $out
+ *
+ * @throws \Exception
+ */
+ protected function compileChildrenNoReturn($stms, OutputBlock $out)
+ {
+ foreach ($stms as $stm) {
+ $ret = $this->compileChild($stm, $out);
+
+ if (isset($ret)) {
+ $this->throwError('@return may only be used within a function');
+
+ return;
+ }
+ }
+ }
+
+ /**
+ * Compile media query
+ *
+ * @param array $queryList
+ *
+ * @return string
+ */
+ protected function compileMediaQuery($queryList)
+ {
+ $out = '@media';
+ $first = true;
+
+ foreach ($queryList as $query) {
+ $type = null;
+ $parts = [];
+
+ foreach ($query as $q) {
+ switch ($q[0]) {
+ case Type::T_MEDIA_TYPE:
+ if ($type) {
+ $type = $this->mergeMediaTypes(
+ $type,
+ array_map([$this, 'compileValue'], array_slice($q, 1))
+ );
+
+ if (empty($type)) { // merge failed
+ return null;
+ }
+ } else {
+ $type = array_map([$this, 'compileValue'], array_slice($q, 1));
+ }
+ break;
+
+ case Type::T_MEDIA_EXPRESSION:
+ if (isset($q[2])) {
+ $parts[] = '('
+ . $this->compileValue($q[1])
+ . $this->formatter->assignSeparator
+ . $this->compileValue($q[2])
+ . ')';
+ } else {
+ $parts[] = '('
+ . $this->compileValue($q[1])
+ . ')';
+ }
+ break;
+
+ case Type::T_MEDIA_VALUE:
+ $parts[] = $this->compileValue($q[1]);
+ break;
+ }
+ }
+
+ if ($type) {
+ array_unshift($parts, implode(' ', array_filter($type)));
+ }
+
+ if (! empty($parts)) {
+ if ($first) {
+ $first = false;
+ $out .= ' ';
+ } else {
+ $out .= $this->formatter->tagSeparator;
+ }
+
+ $out .= implode(' and ', $parts);
+ }
+ }
+
+ return $out;
+ }
+
+ protected function mergeDirectRelationships($selectors1, $selectors2)
+ {
+ if (empty($selectors1) || empty($selectors2)) {
+ return array_merge($selectors1, $selectors2);
+ }
+
+ $part1 = end($selectors1);
+ $part2 = end($selectors2);
+
+ if (! $this->isImmediateRelationshipCombinator($part1[0]) || $part1 !== $part2) {
+ return array_merge($selectors1, $selectors2);
+ }
+
+ $merged = [];
+
+ do {
+ $part1 = array_pop($selectors1);
+ $part2 = array_pop($selectors2);
+
+ if ($this->isImmediateRelationshipCombinator($part1[0]) && $part1 !== $part2) {
+ $merged = array_merge($selectors1, [$part1], $selectors2, [$part2], $merged);
+ break;
+ }
+
+ array_unshift($merged, $part1);
+ array_unshift($merged, [array_pop($selectors1)[0] . array_pop($selectors2)[0]]);
+ } while (! empty($selectors1) && ! empty($selectors2));
+
+ return $merged;
+ }
+
+ /**
+ * Merge media types
+ *
+ * @param array $type1
+ * @param array $type2
+ *
+ * @return array|null
+ */
+ protected function mergeMediaTypes($type1, $type2)
+ {
+ if (empty($type1)) {
+ return $type2;
+ }
+
+ if (empty($type2)) {
+ return $type1;
+ }
+
+ $m1 = '';
+ $t1 = '';
+
+ if (count($type1) > 1) {
+ $m1= strtolower($type1[0]);
+ $t1= strtolower($type1[1]);
+ } else {
+ $t1 = strtolower($type1[0]);
+ }
+
+ $m2 = '';
+ $t2 = '';
+
+ if (count($type2) > 1) {
+ $m2 = strtolower($type2[0]);
+ $t2 = strtolower($type2[1]);
+ } else {
+ $t2 = strtolower($type2[0]);
+ }
+
+ if (($m1 === Type::T_NOT) ^ ($m2 === Type::T_NOT)) {
+ if ($t1 === $t2) {
+ return null;
+ }
+
+ return [
+ $m1 === Type::T_NOT ? $m2 : $m1,
+ $m1 === Type::T_NOT ? $t2 : $t1,
+ ];
+ }
+
+ if ($m1 === Type::T_NOT && $m2 === Type::T_NOT) {
+ // CSS has no way of representing "neither screen nor print"
+ if ($t1 !== $t2) {
+ return null;
+ }
+
+ return [Type::T_NOT, $t1];
+ }
+
+ if ($t1 !== $t2) {
+ return null;
+ }
+
+ // t1 == t2, neither m1 nor m2 are "not"
+ return [empty($m1)? $m2 : $m1, $t1];
+ }
+
+ /**
+ * Compile import; returns true if the value was something that could be imported
+ *
+ * @param array $rawPath
+ * @param array $out
+ * @param boolean $once
+ *
+ * @return boolean
+ */
+ protected function compileImport($rawPath, $out, $once = false)
+ {
+ if ($rawPath[0] === Type::T_STRING) {
+ $path = $this->compileStringContent($rawPath);
+
+ if ($path = $this->findImport($path)) {
+ if (! $once || ! in_array($path, $this->importedFiles)) {
+ $this->importFile($path, $out);
+ $this->importedFiles[] = $path;
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ if ($rawPath[0] === Type::T_LIST) {
+ // handle a list of strings
+ if (count($rawPath[2]) === 0) {
+ return false;
+ }
+
+ foreach ($rawPath[2] as $path) {
+ if ($path[0] !== Type::T_STRING) {
+ return false;
+ }
+ }
+
+ foreach ($rawPath[2] as $path) {
+ $this->compileImport($path, $out);
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Compile child; returns a value to halt execution
+ *
+ * @param array $child
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $out
+ *
+ * @return array
+ */
+ protected function compileChild($child, OutputBlock $out)
+ {
+ $this->sourceIndex = isset($child[Parser::SOURCE_INDEX]) ? $child[Parser::SOURCE_INDEX] : null;
+ $this->sourceLine = isset($child[Parser::SOURCE_LINE]) ? $child[Parser::SOURCE_LINE] : -1;
+ $this->sourceColumn = isset($child[Parser::SOURCE_COLUMN]) ? $child[Parser::SOURCE_COLUMN] : -1;
+
+ switch ($child[0]) {
+ case Type::T_SCSSPHP_IMPORT_ONCE:
+ list(, $rawPath) = $child;
+
+ $rawPath = $this->reduce($rawPath);
+
+ if (! $this->compileImport($rawPath, $out, true)) {
+ $out->lines[] = '@import ' . $this->compileValue($rawPath) . ';';
+ }
+ break;
+
+ case Type::T_IMPORT:
+ list(, $rawPath) = $child;
+
+ $rawPath = $this->reduce($rawPath);
+
+ if (! $this->compileImport($rawPath, $out)) {
+ $out->lines[] = '@import ' . $this->compileValue($rawPath) . ';';
+ }
+ break;
+
+ case Type::T_DIRECTIVE:
+ $this->compileDirective($child[1]);
+ break;
+
+ case Type::T_AT_ROOT:
+ $this->compileAtRoot($child[1]);
+ break;
+
+ case Type::T_MEDIA:
+ $this->compileMedia($child[1]);
+ break;
+
+ case Type::T_BLOCK:
+ $this->compileBlock($child[1]);
+ break;
+
+ case Type::T_CHARSET:
+ if (! $this->charsetSeen) {
+ $this->charsetSeen = true;
+
+ $out->lines[] = '@charset ' . $this->compileValue($child[1]) . ';';
+ }
+ break;
+
+ case Type::T_ASSIGN:
+ list(, $name, $value) = $child;
+
+ if ($name[0] === Type::T_VARIABLE) {
+ $flags = isset($child[3]) ? $child[3] : [];
+ $isDefault = in_array('!default', $flags);
+ $isGlobal = in_array('!global', $flags);
+
+ if ($isGlobal) {
+ $this->set($name[1], $this->reduce($value), false, $this->rootEnv);
+ break;
+ }
+
+ $shouldSet = $isDefault &&
+ (($result = $this->get($name[1], false)) === null
+ || $result === static::$null);
+
+ if (! $isDefault || $shouldSet) {
+ $this->set($name[1], $this->reduce($value));
+ }
+ break;
+ }
+
+ $compiledName = $this->compileValue($name);
+
+ // handle shorthand syntax: size / line-height
+ if ($compiledName === 'font') {
+ if ($value[0] === Type::T_EXPRESSION && $value[1] === '/') {
+ $value = $this->expToString($value);
+ } elseif ($value[0] === Type::T_LIST) {
+ foreach ($value[2] as &$item) {
+ if ($item[0] === Type::T_EXPRESSION && $item[1] === '/') {
+ $item = $this->expToString($item);
+ }
+ }
+ }
+ }
+
+ // if the value reduces to null from something else then
+ // the property should be discarded
+ if ($value[0] !== Type::T_NULL) {
+ $value = $this->reduce($value);
+
+ if ($value[0] === Type::T_NULL || $value === static::$nullString) {
+ break;
+ }
+ }
+
+ $compiledValue = $this->compileValue($value);
+
+ $out->lines[] = $this->formatter->property(
+ $compiledName,
+ $compiledValue
+ );
+ break;
+
+ case Type::T_COMMENT:
+ if ($out->type === Type::T_ROOT) {
+ $this->compileComment($child);
+ break;
+ }
+
+ $out->lines[] = $child[1];
+ break;
+
+ case Type::T_MIXIN:
+ case Type::T_FUNCTION:
+ list(, $block) = $child;
+
+ $this->set(static::$namespaces[$block->type] . $block->name, $block);
+ break;
+
+ case Type::T_EXTEND:
+ list(, $selectors) = $child;
+
+ foreach ($selectors as $sel) {
+ $results = $this->evalSelectors([$sel]);
+
+ foreach ($results as $result) {
+ // only use the first one
+ $result = current($result);
+
+ $this->pushExtends($result, $out->selectors, $child);
+ }
+ }
+ break;
+
+ case Type::T_IF:
+ list(, $if) = $child;
+
+ if ($this->isTruthy($this->reduce($if->cond, true))) {
+ return $this->compileChildren($if->children, $out);
+ }
+
+ foreach ($if->cases as $case) {
+ if ($case->type === Type::T_ELSE ||
+ $case->type === Type::T_ELSEIF && $this->isTruthy($this->reduce($case->cond))
+ ) {
+ return $this->compileChildren($case->children, $out);
+ }
+ }
+ break;
+
+ case Type::T_EACH:
+ list(, $each) = $child;
+
+ $list = $this->coerceList($this->reduce($each->list));
+
+ $this->pushEnv();
+
+ foreach ($list[2] as $item) {
+ if (count($each->vars) === 1) {
+ $this->set($each->vars[0], $item, true);
+ } else {
+ list(,, $values) = $this->coerceList($item);
+
+ foreach ($each->vars as $i => $var) {
+ $this->set($var, isset($values[$i]) ? $values[$i] : static::$null, true);
+ }
+ }
+
+ $ret = $this->compileChildren($each->children, $out);
+
+ if ($ret) {
+ if ($ret[0] !== Type::T_CONTROL) {
+ $this->popEnv();
+
+ return $ret;
+ }
+
+ if ($ret[1]) {
+ break;
+ }
+ }
+ }
+
+ $this->popEnv();
+ break;
+
+ case Type::T_WHILE:
+ list(, $while) = $child;
+
+ while ($this->isTruthy($this->reduce($while->cond, true))) {
+ $ret = $this->compileChildren($while->children, $out);
+
+ if ($ret) {
+ if ($ret[0] !== Type::T_CONTROL) {
+ return $ret;
+ }
+
+ if ($ret[1]) {
+ break;
+ }
+ }
+ }
+ break;
+
+ case Type::T_FOR:
+ list(, $for) = $child;
+
+ $start = $this->reduce($for->start, true);
+ $end = $this->reduce($for->end, true);
+
+ if (! ($start[2] == $end[2] || $end->unitless())) {
+ $this->throwError('Incompatible units: "%s" and "%s".', $start->unitStr(), $end->unitStr());
+
+ break;
+ }
+
+ $unit = $start[2];
+ $start = $start[1];
+ $end = $end[1];
+
+ $d = $start < $end ? 1 : -1;
+
+ for (;;) {
+ if ((! $for->until && $start - $d == $end) ||
+ ($for->until && $start == $end)
+ ) {
+ break;
+ }
+
+ $this->set($for->var, new Node\Number($start, $unit));
+ $start += $d;
+
+ $ret = $this->compileChildren($for->children, $out);
+
+ if ($ret) {
+ if ($ret[0] !== Type::T_CONTROL) {
+ return $ret;
+ }
+
+ if ($ret[1]) {
+ break;
+ }
+ }
+ }
+ break;
+
+ case Type::T_BREAK:
+ return [Type::T_CONTROL, true];
+
+ case Type::T_CONTINUE:
+ return [Type::T_CONTROL, false];
+
+ case Type::T_RETURN:
+ return $this->reduce($child[1], true);
+
+ case Type::T_NESTED_PROPERTY:
+ list(, $prop) = $child;
+
+ $prefixed = [];
+ $prefix = $this->compileValue($prop->prefix) . '-';
+
+ foreach ($prop->children as $child) {
+ switch ($child[0]) {
+ case Type::T_ASSIGN:
+ array_unshift($child[1][2], $prefix);
+ break;
+
+ case Type::T_NESTED_PROPERTY:
+ array_unshift($child[1]->prefix[2], $prefix);
+ break;
+ }
+
+ $prefixed[] = $child;
+ }
+
+ $this->compileChildrenNoReturn($prefixed, $out);
+ break;
+
+ case Type::T_INCLUDE:
+ // including a mixin
+ list(, $name, $argValues, $content) = $child;
+
+ $mixin = $this->get(static::$namespaces['mixin'] . $name, false);
+
+ if (! $mixin) {
+ $this->throwError("Undefined mixin $name");
+ break;
+ }
+
+ $callingScope = $this->getStoreEnv();
+
+ // push scope, apply args
+ $this->pushEnv();
+ $this->env->depth--;
+
+ $storeEnv = $this->storeEnv;
+ $this->storeEnv = $this->env;
+
+ if (isset($content)) {
+ $content->scope = $callingScope;
+
+ $this->setRaw(static::$namespaces['special'] . 'content', $content, $this->env);
+ }
+
+ if (isset($mixin->args)) {
+ $this->applyArguments($mixin->args, $argValues);
+ }
+
+ $this->env->marker = 'mixin';
+
+ $this->compileChildrenNoReturn($mixin->children, $out);
+
+ $this->storeEnv = $storeEnv;
+
+ $this->popEnv();
+ break;
+
+ case Type::T_MIXIN_CONTENT:
+ $content = $this->get(static::$namespaces['special'] . 'content', false, $this->getStoreEnv())
+ ?: $this->get(static::$namespaces['special'] . 'content', false, $this->env);
+
+ if (! $content) {
+ $content = new \stdClass();
+ $content->scope = new \stdClass();
+ $content->children = $this->storeEnv->parent->block->children;
+ break;
+ }
+
+ $storeEnv = $this->storeEnv;
+ $this->storeEnv = $content->scope;
+
+ $this->compileChildrenNoReturn($content->children, $out);
+
+ $this->storeEnv = $storeEnv;
+ break;
+
+ case Type::T_DEBUG:
+ list(, $value) = $child;
+
+ $line = $this->sourceLine;
+ $value = $this->compileValue($this->reduce($value, true));
+ fwrite($this->stderr, "Line $line DEBUG: $value\n");
+ break;
+
+ case Type::T_WARN:
+ list(, $value) = $child;
+
+ $line = $this->sourceLine;
+ $value = $this->compileValue($this->reduce($value, true));
+ fwrite($this->stderr, "Line $line WARN: $value\n");
+ break;
+
+ case Type::T_ERROR:
+ list(, $value) = $child;
+
+ $line = $this->sourceLine;
+ $value = $this->compileValue($this->reduce($value, true));
+ $this->throwError("Line $line ERROR: $value\n");
+ break;
+
+ case Type::T_CONTROL:
+ $this->throwError('@break/@continue not permitted in this scope');
+ break;
+
+ default:
+ $this->throwError("unknown child type: $child[0]");
+ }
+ }
+
+ /**
+ * Reduce expression to string
+ *
+ * @param array $exp
+ *
+ * @return array
+ */
+ protected function expToString($exp)
+ {
+ list(, $op, $left, $right, /* $inParens */, $whiteLeft, $whiteRight) = $exp;
+
+ $content = [$this->reduce($left)];
+
+ if ($whiteLeft) {
+ $content[] = ' ';
+ }
+
+ $content[] = $op;
+
+ if ($whiteRight) {
+ $content[] = ' ';
+ }
+
+ $content[] = $this->reduce($right);
+
+ return [Type::T_STRING, '', $content];
+ }
+
+ /**
+ * Is truthy?
+ *
+ * @param array $value
+ *
+ * @return array
+ */
+ protected function isTruthy($value)
+ {
+ return $value !== static::$false && $value !== static::$null;
+ }
+
+ /**
+ * Is the value a direct relationship combinator?
+ *
+ * @param string $value
+ *
+ * @return boolean
+ */
+ protected function isImmediateRelationshipCombinator($value)
+ {
+ return $value === '>' || $value === '+' || $value === '~';
+ }
+
+ /**
+ * Should $value cause its operand to eval
+ *
+ * @param array $value
+ *
+ * @return boolean
+ */
+ protected function shouldEval($value)
+ {
+ switch ($value[0]) {
+ case Type::T_EXPRESSION:
+ if ($value[1] === '/') {
+ return $this->shouldEval($value[2], $value[3]);
+ }
+
+ // fall-thru
+ case Type::T_VARIABLE:
+ case Type::T_FUNCTION_CALL:
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Reduce value
+ *
+ * @param array $value
+ * @param boolean $inExp
+ *
+ * @return array|\Leafo\ScssPhp\Node\Number
+ */
+ protected function reduce($value, $inExp = false)
+ {
+ list($type) = $value;
+
+ switch ($type) {
+ case Type::T_EXPRESSION:
+ list(, $op, $left, $right, $inParens) = $value;
+
+ $opName = isset(static::$operatorNames[$op]) ? static::$operatorNames[$op] : $op;
+ $inExp = $inExp || $this->shouldEval($left) || $this->shouldEval($right);
+
+ $left = $this->reduce($left, true);
+
+ if ($op !== 'and' && $op !== 'or') {
+ $right = $this->reduce($right, true);
+ }
+
+ // special case: looks like css shorthand
+ if ($opName == 'div' && ! $inParens && ! $inExp && isset($right[2])
+ && (($right[0] !== Type::T_NUMBER && $right[2] != '')
+ || ($right[0] === Type::T_NUMBER && ! $right->unitless()))
+ ) {
+ return $this->expToString($value);
+ }
+
+ $left = $this->coerceForExpression($left);
+ $right = $this->coerceForExpression($right);
+
+ $ltype = $left[0];
+ $rtype = $right[0];
+
+ $ucOpName = ucfirst($opName);
+ $ucLType = ucfirst($ltype);
+ $ucRType = ucfirst($rtype);
+
+ // this tries:
+ // 1. op[op name][left type][right type]
+ // 2. op[left type][right type] (passing the op as first arg
+ // 3. op[op name]
+ $fn = "op${ucOpName}${ucLType}${ucRType}";
+
+ if (is_callable([$this, $fn]) ||
+ (($fn = "op${ucLType}${ucRType}") &&
+ is_callable([$this, $fn]) &&
+ $passOp = true) ||
+ (($fn = "op${ucOpName}") &&
+ is_callable([$this, $fn]) &&
+ $genOp = true)
+ ) {
+ $coerceUnit = false;
+
+ if (! isset($genOp) &&
+ $left[0] === Type::T_NUMBER && $right[0] === Type::T_NUMBER
+ ) {
+ $coerceUnit = true;
+
+ switch ($opName) {
+ case 'mul':
+ $targetUnit = $left[2];
+
+ foreach ($right[2] as $unit => $exp) {
+ $targetUnit[$unit] = (isset($targetUnit[$unit]) ? $targetUnit[$unit] : 0) + $exp;
+ }
+ break;
+
+ case 'div':
+ $targetUnit = $left[2];
+
+ foreach ($right[2] as $unit => $exp) {
+ $targetUnit[$unit] = (isset($targetUnit[$unit]) ? $targetUnit[$unit] : 0) - $exp;
+ }
+ break;
+
+ case 'mod':
+ $targetUnit = $left[2];
+ break;
+
+ default:
+ $targetUnit = $left->unitless() ? $right[2] : $left[2];
+ }
+
+ if (! $left->unitless() && ! $right->unitless()) {
+ $left = $left->normalize();
+ $right = $right->normalize();
+ }
+ }
+
+ $shouldEval = $inParens || $inExp;
+
+ if (isset($passOp)) {
+ $out = $this->$fn($op, $left, $right, $shouldEval);
+ } else {
+ $out = $this->$fn($left, $right, $shouldEval);
+ }
+
+ if (isset($out)) {
+ if ($coerceUnit && $out[0] === Type::T_NUMBER) {
+ $out = $out->coerce($targetUnit);
+ }
+
+ return $out;
+ }
+ }
+
+ return $this->expToString($value);
+
+ case Type::T_UNARY:
+ list(, $op, $exp, $inParens) = $value;
+
+ $inExp = $inExp || $this->shouldEval($exp);
+ $exp = $this->reduce($exp);
+
+ if ($exp[0] === Type::T_NUMBER) {
+ switch ($op) {
+ case '+':
+ return new Node\Number($exp[1], $exp[2]);
+
+ case '-':
+ return new Node\Number(-$exp[1], $exp[2]);
+ }
+ }
+
+ if ($op === 'not') {
+ if ($inExp || $inParens) {
+ if ($exp === static::$false || $exp === static::$null) {
+ return static::$true;
+ }
+
+ return static::$false;
+ }
+
+ $op = $op . ' ';
+ }
+
+ return [Type::T_STRING, '', [$op, $exp]];
+
+ case Type::T_VARIABLE:
+ list(, $name) = $value;
+
+ return $this->reduce($this->get($name));
+
+ case Type::T_LIST:
+ foreach ($value[2] as &$item) {
+ $item = $this->reduce($item);
+ }
+
+ return $value;
+
+ case Type::T_MAP:
+ foreach ($value[1] as &$item) {
+ $item = $this->reduce($item);
+ }
+
+ foreach ($value[2] as &$item) {
+ $item = $this->reduce($item);
+ }
+
+ return $value;
+
+ case Type::T_STRING:
+ foreach ($value[2] as &$item) {
+ if (is_array($item) || $item instanceof \ArrayAccess) {
+ $item = $this->reduce($item);
+ }
+ }
+
+ return $value;
+
+ case Type::T_INTERPOLATE:
+ $value[1] = $this->reduce($value[1]);
+
+ return $value;
+
+ case Type::T_FUNCTION_CALL:
+ list(, $name, $argValues) = $value;
+
+ return $this->fncall($name, $argValues);
+
+ default:
+ return $value;
+ }
+ }
+
+ /**
+ * Function caller
+ *
+ * @param string $name
+ * @param array $argValues
+ *
+ * @return array|null
+ */
+ private function fncall($name, $argValues)
+ {
+ // SCSS @function
+ if ($this->callScssFunction($name, $argValues, $returnValue)) {
+ return $returnValue;
+ }
+
+ // native PHP functions
+ if ($this->callNativeFunction($name, $argValues, $returnValue)) {
+ return $returnValue;
+ }
+
+ // for CSS functions, simply flatten the arguments into a list
+ $listArgs = [];
+
+ foreach ((array) $argValues as $arg) {
+ if (empty($arg[0])) {
+ $listArgs[] = $this->reduce($arg[1]);
+ }
+ }
+
+ return [Type::T_FUNCTION, $name, [Type::T_LIST, ',', $listArgs]];
+ }
+
+ /**
+ * Normalize name
+ *
+ * @param string $name
+ *
+ * @return string
+ */
+ protected function normalizeName($name)
+ {
+ return str_replace('-', '_', $name);
+ }
+
+ /**
+ * Normalize value
+ *
+ * @param array $value
+ *
+ * @return array
+ */
+ public function normalizeValue($value)
+ {
+ $value = $this->coerceForExpression($this->reduce($value));
+ list($type) = $value;
+
+ switch ($type) {
+ case Type::T_LIST:
+ $value = $this->extractInterpolation($value);
+
+ if ($value[0] !== Type::T_LIST) {
+ return [Type::T_KEYWORD, $this->compileValue($value)];
+ }
+
+ foreach ($value[2] as $key => $item) {
+ $value[2][$key] = $this->normalizeValue($item);
+ }
+
+ return $value;
+
+ case Type::T_STRING:
+ return [$type, '"', [$this->compileStringContent($value)]];
+
+ case Type::T_NUMBER:
+ return $value->normalize();
+
+ case Type::T_INTERPOLATE:
+ return [Type::T_KEYWORD, $this->compileValue($value)];
+
+ default:
+ return $value;
+ }
+ }
+
+ /**
+ * Add numbers
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return \Leafo\ScssPhp\Node\Number
+ */
+ protected function opAddNumberNumber($left, $right)
+ {
+ return new Node\Number($left[1] + $right[1], $left[2]);
+ }
+
+ /**
+ * Multiply numbers
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return \Leafo\ScssPhp\Node\Number
+ */
+ protected function opMulNumberNumber($left, $right)
+ {
+ return new Node\Number($left[1] * $right[1], $left[2]);
+ }
+
+ /**
+ * Subtract numbers
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return \Leafo\ScssPhp\Node\Number
+ */
+ protected function opSubNumberNumber($left, $right)
+ {
+ return new Node\Number($left[1] - $right[1], $left[2]);
+ }
+
+ /**
+ * Divide numbers
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array|\Leafo\ScssPhp\Node\Number
+ */
+ protected function opDivNumberNumber($left, $right)
+ {
+ if ($right[1] == 0) {
+ return [Type::T_STRING, '', [$left[1] . $left[2] . '/' . $right[1] . $right[2]]];
+ }
+
+ return new Node\Number($left[1] / $right[1], $left[2]);
+ }
+
+ /**
+ * Mod numbers
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return \Leafo\ScssPhp\Node\Number
+ */
+ protected function opModNumberNumber($left, $right)
+ {
+ return new Node\Number($left[1] % $right[1], $left[2]);
+ }
+
+ /**
+ * Add strings
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opAdd($left, $right)
+ {
+ if ($strLeft = $this->coerceString($left)) {
+ if ($right[0] === Type::T_STRING) {
+ $right[1] = '';
+ }
+
+ $strLeft[2][] = $right;
+
+ return $strLeft;
+ }
+
+ if ($strRight = $this->coerceString($right)) {
+ if ($left[0] === Type::T_STRING) {
+ $left[1] = '';
+ }
+
+ array_unshift($strRight[2], $left);
+
+ return $strRight;
+ }
+ }
+
+ /**
+ * Boolean and
+ *
+ * @param array $left
+ * @param array $right
+ * @param boolean $shouldEval
+ *
+ * @return array
+ */
+ protected function opAnd($left, $right, $shouldEval)
+ {
+ if (! $shouldEval) {
+ return;
+ }
+
+ if ($left !== static::$false and $left !== static::$null) {
+ return $this->reduce($right, true);
+ }
+
+ return $left;
+ }
+
+ /**
+ * Boolean or
+ *
+ * @param array $left
+ * @param array $right
+ * @param boolean $shouldEval
+ *
+ * @return array
+ */
+ protected function opOr($left, $right, $shouldEval)
+ {
+ if (! $shouldEval) {
+ return;
+ }
+
+ if ($left !== static::$false and $left !== static::$null) {
+ return $left;
+ }
+
+ return $this->reduce($right, true);
+ }
+
+ /**
+ * Compare colors
+ *
+ * @param string $op
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opColorColor($op, $left, $right)
+ {
+ $out = [Type::T_COLOR];
+
+ foreach ([1, 2, 3] as $i) {
+ $lval = isset($left[$i]) ? $left[$i] : 0;
+ $rval = isset($right[$i]) ? $right[$i] : 0;
+
+ switch ($op) {
+ case '+':
+ $out[] = $lval + $rval;
+ break;
+
+ case '-':
+ $out[] = $lval - $rval;
+ break;
+
+ case '*':
+ $out[] = $lval * $rval;
+ break;
+
+ case '%':
+ $out[] = $lval % $rval;
+ break;
+
+ case '/':
+ if ($rval == 0) {
+ $this->throwError("color: Can't divide by zero");
+ break 2;
+ }
+
+ $out[] = (int) ($lval / $rval);
+ break;
+
+ case '==':
+ return $this->opEq($left, $right);
+
+ case '!=':
+ return $this->opNeq($left, $right);
+
+ default:
+ $this->throwError("color: unknown op $op");
+ break 2;
+ }
+ }
+
+ if (isset($left[4])) {
+ $out[4] = $left[4];
+ } elseif (isset($right[4])) {
+ $out[4] = $right[4];
+ }
+
+ return $this->fixColor($out);
+ }
+
+ /**
+ * Compare color and number
+ *
+ * @param string $op
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opColorNumber($op, $left, $right)
+ {
+ $value = $right[1];
+
+ return $this->opColorColor(
+ $op,
+ $left,
+ [Type::T_COLOR, $value, $value, $value]
+ );
+ }
+
+ /**
+ * Compare number and color
+ *
+ * @param string $op
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opNumberColor($op, $left, $right)
+ {
+ $value = $left[1];
+
+ return $this->opColorColor(
+ $op,
+ [Type::T_COLOR, $value, $value, $value],
+ $right
+ );
+ }
+
+ /**
+ * Compare number1 == number2
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opEq($left, $right)
+ {
+ if (($lStr = $this->coerceString($left)) && ($rStr = $this->coerceString($right))) {
+ $lStr[1] = '';
+ $rStr[1] = '';
+
+ $left = $this->compileValue($lStr);
+ $right = $this->compileValue($rStr);
+ }
+
+ return $this->toBool($left === $right);
+ }
+
+ /**
+ * Compare number1 != number2
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opNeq($left, $right)
+ {
+ if (($lStr = $this->coerceString($left)) && ($rStr = $this->coerceString($right))) {
+ $lStr[1] = '';
+ $rStr[1] = '';
+
+ $left = $this->compileValue($lStr);
+ $right = $this->compileValue($rStr);
+ }
+
+ return $this->toBool($left !== $right);
+ }
+
+ /**
+ * Compare number1 >= number2
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opGteNumberNumber($left, $right)
+ {
+ return $this->toBool($left[1] >= $right[1]);
+ }
+
+ /**
+ * Compare number1 > number2
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opGtNumberNumber($left, $right)
+ {
+ return $this->toBool($left[1] > $right[1]);
+ }
+
+ /**
+ * Compare number1 <= number2
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opLteNumberNumber($left, $right)
+ {
+ return $this->toBool($left[1] <= $right[1]);
+ }
+
+ /**
+ * Compare number1 < number2
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opLtNumberNumber($left, $right)
+ {
+ return $this->toBool($left[1] < $right[1]);
+ }
+
+ /**
+ * Three-way comparison, aka spaceship operator
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return \Leafo\ScssPhp\Node\Number
+ */
+ protected function opCmpNumberNumber($left, $right)
+ {
+ $n = $left[1] - $right[1];
+
+ return new Node\Number($n ? $n / abs($n) : 0, '');
+ }
+
+ /**
+ * Cast to boolean
+ *
+ * @api
+ *
+ * @param mixed $thing
+ *
+ * @return array
+ */
+ public function toBool($thing)
+ {
+ return $thing ? static::$true : static::$false;
+ }
+
+ /**
+ * Compiles a primitive value into a CSS property value.
+ *
+ * Values in scssphp are typed by being wrapped in arrays, their format is
+ * typically:
+ *
+ * array(type, contents [, additional_contents]*)
+ *
+ * The input is expected to be reduced. This function will not work on
+ * things like expressions and variables.
+ *
+ * @api
+ *
+ * @param array $value
+ *
+ * @return string
+ */
+ public function compileValue($value)
+ {
+ $value = $this->reduce($value);
+
+ list($type) = $value;
+
+ switch ($type) {
+ case Type::T_KEYWORD:
+ return $value[1];
+
+ case Type::T_COLOR:
+ // [1] - red component (either number for a %)
+ // [2] - green component
+ // [3] - blue component
+ // [4] - optional alpha component
+ list(, $r, $g, $b) = $value;
+
+ $r = round($r);
+ $g = round($g);
+ $b = round($b);
+
+ if (count($value) === 5 && $value[4] !== 1) { // rgba
+ $a = new Node\Number($value[4], '');
+
+ return 'rgba(' . $r . ', ' . $g . ', ' . $b . ', ' . $a . ')';
+ }
+
+ $h = sprintf('#%02x%02x%02x', $r, $g, $b);
+
+ // Converting hex color to short notation (e.g. #003399 to #039)
+ if ($h[1] === $h[2] && $h[3] === $h[4] && $h[5] === $h[6]) {
+ $h = '#' . $h[1] . $h[3] . $h[5];
+ }
+
+ return $h;
+
+ case Type::T_NUMBER:
+ return $value->output($this);
+
+ case Type::T_STRING:
+ return $value[1] . $this->compileStringContent($value) . $value[1];
+
+ case Type::T_FUNCTION:
+ $args = ! empty($value[2]) ? $this->compileValue($value[2]) : '';
+
+ return "$value[1]($args)";
+
+ case Type::T_LIST:
+ $value = $this->extractInterpolation($value);
+
+ if ($value[0] !== Type::T_LIST) {
+ return $this->compileValue($value);
+ }
+
+ list(, $delim, $items) = $value;
+
+ if ($delim !== ' ') {
+ $delim .= ' ';
+ }
+
+ $filtered = [];
+
+ foreach ($items as $item) {
+ if ($item[0] === Type::T_NULL) {
+ continue;
+ }
+
+ $filtered[] = $this->compileValue($item);
+ }
+
+ return implode("$delim", $filtered);
+
+ case Type::T_MAP:
+ $keys = $value[1];
+ $values = $value[2];
+ $filtered = [];
+
+ for ($i = 0, $s = count($keys); $i < $s; $i++) {
+ $filtered[$this->compileValue($keys[$i])] = $this->compileValue($values[$i]);
+ }
+
+ array_walk($filtered, function (&$value, $key) {
+ $value = $key . ': ' . $value;
+ });
+
+ return '(' . implode(', ', $filtered) . ')';
+
+ case Type::T_INTERPOLATED:
+ // node created by extractInterpolation
+ list(, $interpolate, $left, $right) = $value;
+ list(,, $whiteLeft, $whiteRight) = $interpolate;
+
+ $left = count($left[2]) > 0 ?
+ $this->compileValue($left) . $whiteLeft : '';
+
+ $right = count($right[2]) > 0 ?
+ $whiteRight . $this->compileValue($right) : '';
+
+ return $left . $this->compileValue($interpolate) . $right;
+
+ case Type::T_INTERPOLATE:
+ // raw parse node
+ list(, $exp) = $value;
+
+ // strip quotes if it's a string
+ $reduced = $this->reduce($exp);
+
+ switch ($reduced[0]) {
+ case Type::T_LIST:
+ $reduced = $this->extractInterpolation($reduced);
+
+ if ($reduced[0] !== Type::T_LIST) {
+ break;
+ }
+
+ list(, $delim, $items) = $reduced;
+
+ if ($delim !== ' ') {
+ $delim .= ' ';
+ }
+
+ $filtered = [];
+
+ foreach ($items as $item) {
+ if ($item[0] === Type::T_NULL) {
+ continue;
+ }
+
+ $temp = $this->compileValue([Type::T_KEYWORD, $item]);
+ if ($temp[0] === Type::T_STRING) {
+ $filtered[] = $this->compileStringContent($temp);
+ } elseif ($temp[0] === Type::T_KEYWORD) {
+ $filtered[] = $temp[1];
+ } else {
+ $filtered[] = $this->compileValue($temp);
+ }
+ }
+
+ $reduced = [Type::T_KEYWORD, implode("$delim", $filtered)];
+ break;
+
+ case Type::T_STRING:
+ $reduced = [Type::T_KEYWORD, $this->compileStringContent($reduced)];
+ break;
+
+ case Type::T_NULL:
+ $reduced = [Type::T_KEYWORD, ''];
+ }
+
+ return $this->compileValue($reduced);
+
+ case Type::T_NULL:
+ return 'null';
+
+ default:
+ $this->throwError("unknown value type: $type");
+ }
+ }
+
+ /**
+ * Flatten list
+ *
+ * @param array $list
+ *
+ * @return string
+ */
+ protected function flattenList($list)
+ {
+ return $this->compileValue($list);
+ }
+
+ /**
+ * Compile string content
+ *
+ * @param array $string
+ *
+ * @return string
+ */
+ protected function compileStringContent($string)
+ {
+ $parts = [];
+
+ foreach ($string[2] as $part) {
+ if (is_array($part) || $part instanceof \ArrayAccess) {
+ $parts[] = $this->compileValue($part);
+ } else {
+ $parts[] = $part;
+ }
+ }
+
+ return implode($parts);
+ }
+
+ /**
+ * Extract interpolation; it doesn't need to be recursive, compileValue will handle that
+ *
+ * @param array $list
+ *
+ * @return array
+ */
+ protected function extractInterpolation($list)
+ {
+ $items = $list[2];
+
+ foreach ($items as $i => $item) {
+ if ($item[0] === Type::T_INTERPOLATE) {
+ $before = [Type::T_LIST, $list[1], array_slice($items, 0, $i)];
+ $after = [Type::T_LIST, $list[1], array_slice($items, $i + 1)];
+
+ return [Type::T_INTERPOLATED, $item, $before, $after];
+ }
+ }
+
+ return $list;
+ }
+
+ /**
+ * Find the final set of selectors
+ *
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ *
+ * @return array
+ */
+ protected function multiplySelectors(Environment $env)
+ {
+ $envs = $this->compactEnv($env);
+ $selectors = [];
+ $parentSelectors = [[]];
+
+ while ($env = array_pop($envs)) {
+ if (empty($env->selectors)) {
+ continue;
+ }
+
+ $selectors = [];
+
+ foreach ($env->selectors as $selector) {
+ foreach ($parentSelectors as $parent) {
+ $selectors[] = $this->joinSelectors($parent, $selector);
+ }
+ }
+
+ $parentSelectors = $selectors;
+ }
+
+ return $selectors;
+ }
+
+ /**
+ * Join selectors; looks for & to replace, or append parent before child
+ *
+ * @param array $parent
+ * @param array $child
+ *
+ * @return array
+ */
+ protected function joinSelectors($parent, $child)
+ {
+ $setSelf = false;
+ $out = [];
+
+ foreach ($child as $part) {
+ $newPart = [];
+
+ foreach ($part as $p) {
+ if ($p === static::$selfSelector) {
+ $setSelf = true;
+
+ foreach ($parent as $i => $parentPart) {
+ if ($i > 0) {
+ $out[] = $newPart;
+ $newPart = [];
+ }
+
+ foreach ($parentPart as $pp) {
+ $newPart[] = $pp;
+ }
+ }
+ } else {
+ $newPart[] = $p;
+ }
+ }
+
+ $out[] = $newPart;
+ }
+
+ return $setSelf ? $out : array_merge($parent, $child);
+ }
+
+ /**
+ * Multiply media
+ *
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ * @param array $childQueries
+ *
+ * @return array
+ */
+ protected function multiplyMedia(Environment $env = null, $childQueries = null)
+ {
+ if (! isset($env) ||
+ ! empty($env->block->type) && $env->block->type !== Type::T_MEDIA
+ ) {
+ return $childQueries;
+ }
+
+ // plain old block, skip
+ if (empty($env->block->type)) {
+ return $this->multiplyMedia($env->parent, $childQueries);
+ }
+
+ $parentQueries = isset($env->block->queryList)
+ ? $env->block->queryList
+ : [[[Type::T_MEDIA_VALUE, $env->block->value]]];
+
+ if ($childQueries === null) {
+ $childQueries = $parentQueries;
+ } else {
+ $originalQueries = $childQueries;
+ $childQueries = [];
+
+ foreach ($parentQueries as $parentQuery) {
+ foreach ($originalQueries as $childQuery) {
+ $childQueries []= array_merge($parentQuery, $childQuery);
+ }
+ }
+ }
+
+ return $this->multiplyMedia($env->parent, $childQueries);
+ }
+
+ /**
+ * Convert env linked list to stack
+ *
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ *
+ * @return array
+ */
+ private function compactEnv(Environment $env)
+ {
+ for ($envs = []; $env; $env = $env->parent) {
+ $envs[] = $env;
+ }
+
+ return $envs;
+ }
+
+ /**
+ * Convert env stack to singly linked list
+ *
+ * @param array $envs
+ *
+ * @return \Leafo\ScssPhp\Compiler\Environment
+ */
+ private function extractEnv($envs)
+ {
+ for ($env = null; $e = array_pop($envs);) {
+ $e->parent = $env;
+ $env = $e;
+ }
+
+ return $env;
+ }
+
+ /**
+ * Push environment
+ *
+ * @param \Leafo\ScssPhp\Block $block
+ *
+ * @return \Leafo\ScssPhp\Compiler\Environment
+ */
+ protected function pushEnv(Block $block = null)
+ {
+ $env = new Environment;
+ $env->parent = $this->env;
+ $env->store = [];
+ $env->block = $block;
+ $env->depth = isset($this->env->depth) ? $this->env->depth + 1 : 0;
+
+ $this->env = $env;
+
+ return $env;
+ }
+
+ /**
+ * Pop environment
+ */
+ protected function popEnv()
+ {
+ $this->env = $this->env->parent;
+ }
+
+ /**
+ * Get store environment
+ *
+ * @return \Leafo\ScssPhp\Compiler\Environment
+ */
+ protected function getStoreEnv()
+ {
+ return isset($this->storeEnv) ? $this->storeEnv : $this->env;
+ }
+
+ /**
+ * Set variable
+ *
+ * @param string $name
+ * @param mixed $value
+ * @param boolean $shadow
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ */
+ protected function set($name, $value, $shadow = false, Environment $env = null)
+ {
+ $name = $this->normalizeName($name);
+
+ if (! isset($env)) {
+ $env = $this->getStoreEnv();
+ }
+
+ if ($shadow) {
+ $this->setRaw($name, $value, $env);
+ } else {
+ $this->setExisting($name, $value, $env);
+ }
+ }
+
+ /**
+ * Set existing variable
+ *
+ * @param string $name
+ * @param mixed $value
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ */
+ protected function setExisting($name, $value, Environment $env)
+ {
+ $storeEnv = $env;
+
+ $hasNamespace = $name[0] === '^' || $name[0] === '@' || $name[0] === '%';
+
+ for (;;) {
+ if (array_key_exists($name, $env->store)) {
+ break;
+ }
+
+ if (! $hasNamespace && isset($env->marker)) {
+ $env = $storeEnv;
+ break;
+ }
+
+ if (! isset($env->parent)) {
+ $env = $storeEnv;
+ break;
+ }
+
+ $env = $env->parent;
+ }
+
+ $env->store[$name] = $value;
+ }
+
+ /**
+ * Set raw variable
+ *
+ * @param string $name
+ * @param mixed $value
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ */
+ protected function setRaw($name, $value, Environment $env)
+ {
+ $env->store[$name] = $value;
+ }
+
+ /**
+ * Get variable
+ *
+ * @api
+ *
+ * @param string $name
+ * @param boolean $shouldThrow
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ *
+ * @return mixed
+ */
+ public function get($name, $shouldThrow = true, Environment $env = null)
+ {
+ $normalizedName = $this->normalizeName($name);
+ $specialContentKey = static::$namespaces['special'] . 'content';
+
+ if (! isset($env)) {
+ $env = $this->getStoreEnv();
+ }
+
+ $nextIsRoot = false;
+ $hasNamespace = $normalizedName[0] === '^' || $normalizedName[0] === '@' || $normalizedName[0] === '%';
+
+ for (;;) {
+ if (array_key_exists($normalizedName, $env->store)) {
+ return $env->store[$normalizedName];
+ }
+
+ if (! $hasNamespace && isset($env->marker)) {
+ if (! $nextIsRoot && ! empty($env->store[$specialContentKey])) {
+ $env = $env->store[$specialContentKey]->scope;
+ $nextIsRoot = true;
+ continue;
+ }
+
+ $env = $this->rootEnv;
+ continue;
+ }
+
+ if (! isset($env->parent)) {
+ break;
+ }
+
+ $env = $env->parent;
+ }
+
+ if ($shouldThrow) {
+ $this->throwError("Undefined variable \$$name");
+ }
+
+ // found nothing
+ }
+
+ /**
+ * Has variable?
+ *
+ * @param string $name
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ *
+ * @return boolean
+ */
+ protected function has($name, Environment $env = null)
+ {
+ return $this->get($name, false, $env) !== null;
+ }
+
+ /**
+ * Inject variables
+ *
+ * @param array $args
+ */
+ protected function injectVariables(array $args)
+ {
+ if (empty($args)) {
+ return;
+ }
+
+ $parser = $this->parserFactory(__METHOD__);
+
+ foreach ($args as $name => $strValue) {
+ if ($name[0] === '$') {
+ $name = substr($name, 1);
+ }
+
+ if (! $parser->parseValue($strValue, $value)) {
+ $value = $this->coerceValue($strValue);
+ }
+
+ $this->set($name, $value);
+ }
+ }
+
+ /**
+ * Set variables
+ *
+ * @api
+ *
+ * @param array $variables
+ */
+ public function setVariables(array $variables)
+ {
+ $this->registeredVars = array_merge($this->registeredVars, $variables);
+ }
+
+ /**
+ * Unset variable
+ *
+ * @api
+ *
+ * @param string $name
+ */
+ public function unsetVariable($name)
+ {
+ unset($this->registeredVars[$name]);
+ }
+
+ /**
+ * Returns list of variables
+ *
+ * @api
+ *
+ * @return array
+ */
+ public function getVariables()
+ {
+ return $this->registeredVars;
+ }
+
+ /**
+ * Adds to list of parsed files
+ *
+ * @api
+ *
+ * @param string $path
+ */
+ public function addParsedFile($path)
+ {
+ if (isset($path) && file_exists($path)) {
+ $this->parsedFiles[realpath($path)] = filemtime($path);
+ }
+ }
+
+ /**
+ * Returns list of parsed files
+ *
+ * @api
+ *
+ * @return array
+ */
+ public function getParsedFiles()
+ {
+ return $this->parsedFiles;
+ }
+
+ /**
+ * Add import path
+ *
+ * @api
+ *
+ * @param string $path
+ */
+ public function addImportPath($path)
+ {
+ if (! in_array($path, $this->importPaths)) {
+ $this->importPaths[] = $path;
+ }
+ }
+
+ /**
+ * Set import paths
+ *
+ * @api
+ *
+ * @param string|array $path
+ */
+ public function setImportPaths($path)
+ {
+ $this->importPaths = (array) $path;
+ }
+
+ /**
+ * Set number precision
+ *
+ * @api
+ *
+ * @param integer $numberPrecision
+ */
+ public function setNumberPrecision($numberPrecision)
+ {
+ Node\Number::$precision = $numberPrecision;
+ }
+
+ /**
+ * Set formatter
+ *
+ * @api
+ *
+ * @param string $formatterName
+ */
+ public function setFormatter($formatterName)
+ {
+ $this->formatter = $formatterName;
+ }
+
+ /**
+ * Set line number style
+ *
+ * @api
+ *
+ * @param string $lineNumberStyle
+ */
+ public function setLineNumberStyle($lineNumberStyle)
+ {
+ $this->lineNumberStyle = $lineNumberStyle;
+ }
+
+ /**
+ * Enable/disable source maps
+ *
+ * @api
+ *
+ * @param integer $sourceMap
+ */
+ public function setSourceMap($sourceMap)
+ {
+ $this->sourceMap = $sourceMap;
+ }
+
+ /**
+ * Set source map options
+ *
+ * @api
+ *
+ * @param array $sourceMapOptions
+ */
+ public function setSourceMapOptions($sourceMapOptions)
+ {
+ $this->sourceMapOptions = $sourceMapOptions;
+ }
+
+ /**
+ * Register function
+ *
+ * @api
+ *
+ * @param string $name
+ * @param callable $func
+ * @param array $prototype
+ */
+ public function registerFunction($name, $func, $prototype = null)
+ {
+ $this->userFunctions[$this->normalizeName($name)] = [$func, $prototype];
+ }
+
+ /**
+ * Unregister function
+ *
+ * @api
+ *
+ * @param string $name
+ */
+ public function unregisterFunction($name)
+ {
+ unset($this->userFunctions[$this->normalizeName($name)]);
+ }
+
+ /**
+ * Add feature
+ *
+ * @api
+ *
+ * @param string $name
+ */
+ public function addFeature($name)
+ {
+ $this->registeredFeatures[$name] = true;
+ }
+
+ /**
+ * Import file
+ *
+ * @param string $path
+ * @param array $out
+ */
+ protected function importFile($path, $out)
+ {
+ // see if tree is cached
+ $realPath = realpath($path);
+
+ if (isset($this->importCache[$realPath])) {
+ $this->handleImportLoop($realPath);
+
+ $tree = $this->importCache[$realPath];
+ } else {
+ $code = file_get_contents($path);
+ $parser = $this->parserFactory($path);
+ $tree = $parser->parse($code);
+
+ $this->importCache[$realPath] = $tree;
+ }
+
+ $pi = pathinfo($path);
+ array_unshift($this->importPaths, $pi['dirname']);
+ $this->compileChildrenNoReturn($tree->children, $out);
+ array_shift($this->importPaths);
+ }
+
+ /**
+ * Return the file path for an import url if it exists
+ *
+ * @api
+ *
+ * @param string $url
+ *
+ * @return string|null
+ */
+ public function findImport($url)
+ {
+ $urls = [];
+
+ // for "normal" scss imports (ignore vanilla css and external requests)
+ if (! preg_match('/\.css$|^https?:\/\//', $url)) {
+ // try both normal and the _partial filename
+ $urls = [$url, preg_replace('/[^\/]+$/', '_\0', $url)];
+ }
+
+ $hasExtension = preg_match('/[.]s?css$/', $url);
+
+ foreach ($this->importPaths as $dir) {
+ if (is_string($dir)) {
+ // check urls for normal import paths
+ foreach ($urls as $full) {
+ $full = $dir
+ . (! empty($dir) && substr($dir, -1) !== '/' ? '/' : '')
+ . $full;
+
+ if ($this->fileExists($file = $full . '.scss') ||
+ ($hasExtension && $this->fileExists($file = $full))
+ ) {
+ return $file;
+ }
+ }
+ } elseif (is_callable($dir)) {
+ // check custom callback for import path
+ $file = call_user_func($dir, $url);
+
+ if ($file !== null) {
+ return $file;
+ }
+ }
+ }
+
+ return null;
+ }
+
+ /**
+ * Set encoding
+ *
+ * @api
+ *
+ * @param string $encoding
+ */
+ public function setEncoding($encoding)
+ {
+ $this->encoding = $encoding;
+ }
+
+ /**
+ * Ignore errors?
+ *
+ * @api
+ *
+ * @param boolean $ignoreErrors
+ *
+ * @return \Leafo\ScssPhp\Compiler
+ */
+ public function setIgnoreErrors($ignoreErrors)
+ {
+ $this->ignoreErrors = $ignoreErrors;
+ }
+
+ /**
+ * Throw error (exception)
+ *
+ * @api
+ *
+ * @param string $msg Message with optional sprintf()-style vararg parameters
+ *
+ * @throws \Leafo\ScssPhp\Exception\CompilerException
+ */
+ public function throwError($msg)
+ {
+ if ($this->ignoreErrors) {
+ return;
+ }
+
+ if (func_num_args() > 1) {
+ $msg = call_user_func_array('sprintf', func_get_args());
+ }
+
+ $line = $this->sourceLine;
+ $msg = "$msg: line: $line";
+
+ throw new CompilerException($msg);
+ }
+
+ /**
+ * Handle import loop
+ *
+ * @param string $name
+ *
+ * @throws \Exception
+ */
+ protected function handleImportLoop($name)
+ {
+ for ($env = $this->env; $env; $env = $env->parent) {
+ $file = $this->sourceNames[$env->block->sourceIndex];
+
+ if (realpath($file) === $name) {
+ $this->throwError('An @import loop has been found: %s imports %s', $file, basename($file));
+ break;
+ }
+ }
+ }
+
+ /**
+ * Does file exist?
+ *
+ * @param string $name
+ *
+ * @return boolean
+ */
+ protected function fileExists($name)
+ {
+ return file_exists($name) && is_file($name);
+ }
+
+ /**
+ * Call SCSS @function
+ *
+ * @param string $name
+ * @param array $argValues
+ * @param array $returnValue
+ *
+ * @return boolean Returns true if returnValue is set; otherwise, false
+ */
+ protected function callScssFunction($name, $argValues, &$returnValue)
+ {
+ $func = $this->get(static::$namespaces['function'] . $name, false);
+
+ if (! $func) {
+ return false;
+ }
+
+ $this->pushEnv();
+
+ $storeEnv = $this->storeEnv;
+ $this->storeEnv = $this->env;
+
+ // set the args
+ if (isset($func->args)) {
+ $this->applyArguments($func->args, $argValues);
+ }
+
+ // throw away lines and children
+ $tmp = new OutputBlock;
+ $tmp->lines = [];
+ $tmp->children = [];
+
+ $this->env->marker = 'function';
+
+ $ret = $this->compileChildren($func->children, $tmp);
+
+ $this->storeEnv = $storeEnv;
+
+ $this->popEnv();
+
+ $returnValue = ! isset($ret) ? static::$defaultValue : $ret;
+
+ return true;
+ }
+
+ /**
+ * Call built-in and registered (PHP) functions
+ *
+ * @param string $name
+ * @param array $args
+ * @param array $returnValue
+ *
+ * @return boolean Returns true if returnValue is set; otherwise, false
+ */
+ protected function callNativeFunction($name, $args, &$returnValue)
+ {
+ // try a lib function
+ $name = $this->normalizeName($name);
+
+ if (isset($this->userFunctions[$name])) {
+ // see if we can find a user function
+ list($f, $prototype) = $this->userFunctions[$name];
+ } elseif (($f = $this->getBuiltinFunction($name)) && is_callable($f)) {
+ $libName = $f[1];
+ $prototype = isset(static::$$libName) ? static::$$libName : null;
+ } else {
+ return false;
+ }
+
+ @list($sorted, $kwargs) = $this->sortArgs($prototype, $args);
+
+ if ($name !== 'if' && $name !== 'call') {
+ foreach ($sorted as &$val) {
+ $val = $this->reduce($val, true);
+ }
+ }
+
+ $returnValue = call_user_func($f, $sorted, $kwargs);
+
+ if (! isset($returnValue)) {
+ return false;
+ }
+
+ $returnValue = $this->coerceValue($returnValue);
+
+ return true;
+ }
+
+ /**
+ * Get built-in function
+ *
+ * @param string $name Normalized name
+ *
+ * @return array
+ */
+ protected function getBuiltinFunction($name)
+ {
+ $libName = 'lib' . preg_replace_callback(
+ '/_(.)/',
+ function ($m) {
+ return ucfirst($m[1]);
+ },
+ ucfirst($name)
+ );
+
+ return [$this, $libName];
+ }
+
+ /**
+ * Sorts keyword arguments
+ *
+ * @param array $prototype
+ * @param array $args
+ *
+ * @return array
+ */
+ protected function sortArgs($prototype, $args)
+ {
+ $keyArgs = [];
+ $posArgs = [];
+
+ // separate positional and keyword arguments
+ foreach ($args as $arg) {
+ list($key, $value) = $arg;
+
+ $key = $key[1];
+
+ if (empty($key)) {
+ $posArgs[] = empty($arg[2]) ? $value : $arg;
+ } else {
+ $keyArgs[$key] = $value;
+ }
+ }
+
+ if (! isset($prototype)) {
+ return [$posArgs, $keyArgs];
+ }
+
+ // copy positional args
+ $finalArgs = array_pad($posArgs, count($prototype), null);
+
+ // overwrite positional args with keyword args
+ foreach ($prototype as $i => $names) {
+ foreach ((array) $names as $name) {
+ if (isset($keyArgs[$name])) {
+ $finalArgs[$i] = $keyArgs[$name];
+ }
+ }
+ }
+
+ return [$finalArgs, $keyArgs];
+ }
+
+ /**
+ * Apply argument values per definition
+ *
+ * @param array $argDef
+ * @param array $argValues
+ *
+ * @throws \Exception
+ */
+ protected function applyArguments($argDef, $argValues)
+ {
+ $storeEnv = $this->getStoreEnv();
+
+ $env = new Environment;
+ $env->store = $storeEnv->store;
+
+ $hasVariable = false;
+ $args = [];
+
+ foreach ($argDef as $i => $arg) {
+ list($name, $default, $isVariable) = $argDef[$i];
+
+ $args[$name] = [$i, $name, $default, $isVariable];
+ $hasVariable |= $isVariable;
+ }
+
+ $keywordArgs = [];
+ $deferredKeywordArgs = [];
+ $remaining = [];
+
+ // assign the keyword args
+ foreach ((array) $argValues as $arg) {
+ if (! empty($arg[0])) {
+ if (! isset($args[$arg[0][1]])) {
+ if ($hasVariable) {
+ $deferredKeywordArgs[$arg[0][1]] = $arg[1];
+ } else {
+ $this->throwError("Mixin or function doesn't have an argument named $%s.", $arg[0][1]);
+ break;
+ }
+ } elseif ($args[$arg[0][1]][0] < count($remaining)) {
+ $this->throwError("The argument $%s was passed both by position and by name.", $arg[0][1]);
+ break;
+ } else {
+ $keywordArgs[$arg[0][1]] = $arg[1];
+ }
+ } elseif (count($keywordArgs)) {
+ $this->throwError('Positional arguments must come before keyword arguments.');
+ break;
+ } elseif ($arg[2] === true) {
+ $val = $this->reduce($arg[1], true);
+
+ if ($val[0] === Type::T_LIST) {
+ foreach ($val[2] as $name => $item) {
+ if (! is_numeric($name)) {
+ $keywordArgs[$name] = $item;
+ } else {
+ $remaining[] = $item;
+ }
+ }
+ } elseif ($val[0] === Type::T_MAP) {
+ foreach ($val[1] as $i => $name) {
+ $name = $this->compileStringContent($this->coerceString($name));
+ $item = $val[2][$i];
+
+ if (! is_numeric($name)) {
+ $keywordArgs[$name] = $item;
+ } else {
+ $remaining[] = $item;
+ }
+ }
+ } else {
+ $remaining[] = $val;
+ }
+ } else {
+ $remaining[] = $arg[1];
+ }
+ }
+
+ foreach ($args as $arg) {
+ list($i, $name, $default, $isVariable) = $arg;
+
+ if ($isVariable) {
+ $val = [Type::T_LIST, ',', [], $isVariable];
+
+ for ($count = count($remaining); $i < $count; $i++) {
+ $val[2][] = $remaining[$i];
+ }
+
+ foreach ($deferredKeywordArgs as $itemName => $item) {
+ $val[2][$itemName] = $item;
+ }
+ } elseif (isset($remaining[$i])) {
+ $val = $remaining[$i];
+ } elseif (isset($keywordArgs[$name])) {
+ $val = $keywordArgs[$name];
+ } elseif (! empty($default)) {
+ continue;
+ } else {
+ $this->throwError("Missing argument $name");
+ break;
+ }
+
+ $this->set($name, $this->reduce($val, true), true, $env);
+ }
+
+ $storeEnv->store = $env->store;
+
+ foreach ($args as $arg) {
+ list($i, $name, $default, $isVariable) = $arg;
+
+ if ($isVariable || isset($remaining[$i]) || isset($keywordArgs[$name]) || empty($default)) {
+ continue;
+ }
+
+ $this->set($name, $this->reduce($default, true), true);
+ }
+ }
+
+ /**
+ * Coerce a php value into a scss one
+ *
+ * @param mixed $value
+ *
+ * @return array|\Leafo\ScssPhp\Node\Number
+ */
+ private function coerceValue($value)
+ {
+ if (is_array($value) || $value instanceof \ArrayAccess) {
+ return $value;
+ }
+
+ if (is_bool($value)) {
+ return $this->toBool($value);
+ }
+
+ if ($value === null) {
+ return static::$null;
+ }
+
+ if (is_numeric($value)) {
+ return new Node\Number($value, '');
+ }
+
+ if ($value === '') {
+ return static::$emptyString;
+ }
+
+ if (preg_match('/^(#([0-9a-f]{6})|#([0-9a-f]{3}))$/i', $value, $m)) {
+ $color = [Type::T_COLOR];
+
+ if (isset($m[3])) {
+ $num = hexdec($m[3]);
+
+ foreach ([3, 2, 1] as $i) {
+ $t = $num & 0xf;
+ $color[$i] = $t << 4 | $t;
+ $num >>= 4;
+ }
+ } else {
+ $num = hexdec($m[2]);
+
+ foreach ([3, 2, 1] as $i) {
+ $color[$i] = $num & 0xff;
+ $num >>= 8;
+ }
+ }
+
+ return $color;
+ }
+
+ return [Type::T_KEYWORD, $value];
+ }
+
+ /**
+ * Coerce something to map
+ *
+ * @param array $item
+ *
+ * @return array
+ */
+ protected function coerceMap($item)
+ {
+ if ($item[0] === Type::T_MAP) {
+ return $item;
+ }
+
+ if ($item === static::$emptyList) {
+ return static::$emptyMap;
+ }
+
+ return [Type::T_MAP, [$item], [static::$null]];
+ }
+
+ /**
+ * Coerce something to list
+ *
+ * @param array $item
+ * @param string $delim
+ *
+ * @return array
+ */
+ protected function coerceList($item, $delim = ',')
+ {
+ if (isset($item) && $item[0] === Type::T_LIST) {
+ return $item;
+ }
+
+ if (isset($item) && $item[0] === Type::T_MAP) {
+ $keys = $item[1];
+ $values = $item[2];
+ $list = [];
+
+ for ($i = 0, $s = count($keys); $i < $s; $i++) {
+ $key = $keys[$i];
+ $value = $values[$i];
+
+ $list[] = [
+ Type::T_LIST,
+ '',
+ [[Type::T_KEYWORD, $this->compileStringContent($this->coerceString($key))], $value]
+ ];
+ }
+
+ return [Type::T_LIST, ',', $list];
+ }
+
+ return [Type::T_LIST, $delim, ! isset($item) ? []: [$item]];
+ }
+
+ /**
+ * Coerce color for expression
+ *
+ * @param array $value
+ *
+ * @return array|null
+ */
+ protected function coerceForExpression($value)
+ {
+ if ($color = $this->coerceColor($value)) {
+ return $color;
+ }
+
+ return $value;
+ }
+
+ /**
+ * Coerce value to color
+ *
+ * @param array $value
+ *
+ * @return array|null
+ */
+ protected function coerceColor($value)
+ {
+ switch ($value[0]) {
+ case Type::T_COLOR:
+ return $value;
+
+ case Type::T_KEYWORD:
+ $name = strtolower($value[1]);
+
+ if (isset(Colors::$cssColors[$name])) {
+ $rgba = explode(',', Colors::$cssColors[$name]);
+
+ return isset($rgba[3])
+ ? [Type::T_COLOR, (int) $rgba[0], (int) $rgba[1], (int) $rgba[2], (int) $rgba[3]]
+ : [Type::T_COLOR, (int) $rgba[0], (int) $rgba[1], (int) $rgba[2]];
+ }
+
+ return null;
+ }
+
+ return null;
+ }
+
+ /**
+ * Coerce value to string
+ *
+ * @param array $value
+ *
+ * @return array|null
+ */
+ protected function coerceString($value)
+ {
+ if ($value[0] === Type::T_STRING) {
+ return $value;
+ }
+
+ return [Type::T_STRING, '', [$this->compileValue($value)]];
+ }
+
+ /**
+ * Coerce value to a percentage
+ *
+ * @param array $value
+ *
+ * @return integer|float
+ */
+ protected function coercePercent($value)
+ {
+ if ($value[0] === Type::T_NUMBER) {
+ if (! empty($value[2]['%'])) {
+ return $value[1] / 100;
+ }
+
+ return $value[1];
+ }
+
+ return 0;
+ }
+
+ /**
+ * Assert value is a map
+ *
+ * @api
+ *
+ * @param array $value
+ *
+ * @return array
+ *
+ * @throws \Exception
+ */
+ public function assertMap($value)
+ {
+ $value = $this->coerceMap($value);
+
+ if ($value[0] !== Type::T_MAP) {
+ $this->throwError('expecting map');
+ }
+
+ return $value;
+ }
+
+ /**
+ * Assert value is a list
+ *
+ * @api
+ *
+ * @param array $value
+ *
+ * @return array
+ *
+ * @throws \Exception
+ */
+ public function assertList($value)
+ {
+ if ($value[0] !== Type::T_LIST) {
+ $this->throwError('expecting list');
+ }
+
+ return $value;
+ }
+
+ /**
+ * Assert value is a color
+ *
+ * @api
+ *
+ * @param array $value
+ *
+ * @return array
+ *
+ * @throws \Exception
+ */
+ public function assertColor($value)
+ {
+ if ($color = $this->coerceColor($value)) {
+ return $color;
+ }
+
+ $this->throwError('expecting color');
+ }
+
+ /**
+ * Assert value is a number
+ *
+ * @api
+ *
+ * @param array $value
+ *
+ * @return integer|float
+ *
+ * @throws \Exception
+ */
+ public function assertNumber($value)
+ {
+ if ($value[0] !== Type::T_NUMBER) {
+ $this->throwError('expecting number');
+ }
+
+ return $value[1];
+ }
+
+ /**
+ * Make sure a color's components don't go out of bounds
+ *
+ * @param array $c
+ *
+ * @return array
+ */
+ protected function fixColor($c)
+ {
+ foreach ([1, 2, 3] as $i) {
+ if ($c[$i] < 0) {
+ $c[$i] = 0;
+ }
+
+ if ($c[$i] > 255) {
+ $c[$i] = 255;
+ }
+ }
+
+ return $c;
+ }
+
+ /**
+ * Convert RGB to HSL
+ *
+ * @api
+ *
+ * @param integer $red
+ * @param integer $green
+ * @param integer $blue
+ *
+ * @return array
+ */
+ public function toHSL($red, $green, $blue)
+ {
+ $min = min($red, $green, $blue);
+ $max = max($red, $green, $blue);
+
+ $l = $min + $max;
+ $d = $max - $min;
+
+ if ((int) $d === 0) {
+ $h = $s = 0;
+ } else {
+ if ($l < 255) {
+ $s = $d / $l;
+ } else {
+ $s = $d / (510 - $l);
+ }
+
+ if ($red == $max) {
+ $h = 60 * ($green - $blue) / $d;
+ } elseif ($green == $max) {
+ $h = 60 * ($blue - $red) / $d + 120;
+ } elseif ($blue == $max) {
+ $h = 60 * ($red - $green) / $d + 240;
+ }
+ }
+
+ return [Type::T_HSL, fmod($h, 360), $s * 100, $l / 5.1];
+ }
+
+ /**
+ * Hue to RGB helper
+ *
+ * @param float $m1
+ * @param float $m2
+ * @param float $h
+ *
+ * @return float
+ */
+ private function hueToRGB($m1, $m2, $h)
+ {
+ if ($h < 0) {
+ $h += 1;
+ } elseif ($h > 1) {
+ $h -= 1;
+ }
+
+ if ($h * 6 < 1) {
+ return $m1 + ($m2 - $m1) * $h * 6;
+ }
+
+ if ($h * 2 < 1) {
+ return $m2;
+ }
+
+ if ($h * 3 < 2) {
+ return $m1 + ($m2 - $m1) * (2/3 - $h) * 6;
+ }
+
+ return $m1;
+ }
+
+ /**
+ * Convert HSL to RGB
+ *
+ * @api
+ *
+ * @param integer $hue H from 0 to 360
+ * @param integer $saturation S from 0 to 100
+ * @param integer $lightness L from 0 to 100
+ *
+ * @return array
+ */
+ public function toRGB($hue, $saturation, $lightness)
+ {
+ if ($hue < 0) {
+ $hue += 360;
+ }
+
+ $h = $hue / 360;
+ $s = min(100, max(0, $saturation)) / 100;
+ $l = min(100, max(0, $lightness)) / 100;
+
+ $m2 = $l <= 0.5 ? $l * ($s + 1) : $l + $s - $l * $s;
+ $m1 = $l * 2 - $m2;
+
+ $r = $this->hueToRGB($m1, $m2, $h + 1/3) * 255;
+ $g = $this->hueToRGB($m1, $m2, $h) * 255;
+ $b = $this->hueToRGB($m1, $m2, $h - 1/3) * 255;
+
+ $out = [Type::T_COLOR, $r, $g, $b];
+
+ return $out;
+ }
+
+ // Built in functions
+
+ //protected static $libCall = ['name', 'args...'];
+ protected function libCall($args, $kwargs)
+ {
+ $name = $this->compileStringContent($this->coerceString($this->reduce(array_shift($args), true)));
+
+ $posArgs = [];
+
+ foreach ($args as $arg) {
+ if (empty($arg[0])) {
+ if ($arg[2] === true) {
+ $tmp = $this->reduce($arg[1]);
+
+ if ($tmp[0] === Type::T_LIST) {
+ foreach ($tmp[2] as $item) {
+ $posArgs[] = [null, $item, false];
+ }
+ } else {
+ $posArgs[] = [null, $tmp, true];
+ }
+
+ continue;
+ }
+
+ $posArgs[] = [null, $this->reduce($arg), false];
+ continue;
+ }
+
+ $posArgs[] = [null, $arg, false];
+ }
+
+ if (count($kwargs)) {
+ foreach ($kwargs as $key => $value) {
+ $posArgs[] = [[Type::T_VARIABLE, $key], $value, false];
+ }
+ }
+
+ return $this->reduce([Type::T_FUNCTION_CALL, $name, $posArgs]);
+ }
+
+ protected static $libIf = ['condition', 'if-true', 'if-false'];
+ protected function libIf($args)
+ {
+ list($cond, $t, $f) = $args;
+
+ if (! $this->isTruthy($this->reduce($cond, true))) {
+ return $this->reduce($f, true);
+ }
+
+ return $this->reduce($t, true);
+ }
+
+ protected static $libIndex = ['list', 'value'];
+ protected function libIndex($args)
+ {
+ list($list, $value) = $args;
+
+ if ($value[0] === Type::T_MAP) {
+ return static::$null;
+ }
+
+ if ($list[0] === Type::T_MAP ||
+ $list[0] === Type::T_STRING ||
+ $list[0] === Type::T_KEYWORD ||
+ $list[0] === Type::T_INTERPOLATE
+ ) {
+ $list = $this->coerceList($list, ' ');
+ }
+
+ if ($list[0] !== Type::T_LIST) {
+ return static::$null;
+ }
+
+ $values = [];
+
+ foreach ($list[2] as $item) {
+ $values[] = $this->normalizeValue($item);
+ }
+
+ $key = array_search($this->normalizeValue($value), $values);
+
+ return false === $key ? static::$null : $key + 1;
+ }
+
+ protected static $libRgb = ['red', 'green', 'blue'];
+ protected function libRgb($args)
+ {
+ list($r, $g, $b) = $args;
+
+ return [Type::T_COLOR, $r[1], $g[1], $b[1]];
+ }
+
+ protected static $libRgba = [
+ ['red', 'color'],
+ 'green', 'blue', 'alpha'];
+ protected function libRgba($args)
+ {
+ if ($color = $this->coerceColor($args[0])) {
+ $num = isset($args[3]) ? $args[3] : $args[1];
+ $alpha = $this->assertNumber($num);
+ $color[4] = $alpha;
+
+ return $color;
+ }
+
+ list($r, $g, $b, $a) = $args;
+
+ return [Type::T_COLOR, $r[1], $g[1], $b[1], $a[1]];
+ }
+
+ // helper function for adjust_color, change_color, and scale_color
+ protected function alterColor($args, $fn)
+ {
+ $color = $this->assertColor($args[0]);
+
+ foreach ([1, 2, 3, 7] as $i) {
+ if (isset($args[$i])) {
+ $val = $this->assertNumber($args[$i]);
+ $ii = $i === 7 ? 4 : $i; // alpha
+ $color[$ii] = call_user_func($fn, isset($color[$ii]) ? $color[$ii] : 0, $val, $i);
+ }
+ }
+
+ if (isset($args[4]) || isset($args[5]) || isset($args[6])) {
+ $hsl = $this->toHSL($color[1], $color[2], $color[3]);
+
+ foreach ([4, 5, 6] as $i) {
+ if (isset($args[$i])) {
+ $val = $this->assertNumber($args[$i]);
+ $hsl[$i - 3] = call_user_func($fn, $hsl[$i - 3], $val, $i);
+ }
+ }
+
+ $rgb = $this->toRGB($hsl[1], $hsl[2], $hsl[3]);
+
+ if (isset($color[4])) {
+ $rgb[4] = $color[4];
+ }
+
+ $color = $rgb;
+ }
+
+ return $color;
+ }
+
+ protected static $libAdjustColor = [
+ 'color', 'red', 'green', 'blue',
+ 'hue', 'saturation', 'lightness', 'alpha'
+ ];
+ protected function libAdjustColor($args)
+ {
+ return $this->alterColor($args, function ($base, $alter, $i) {
+ return $base + $alter;
+ });
+ }
+
+ protected static $libChangeColor = [
+ 'color', 'red', 'green', 'blue',
+ 'hue', 'saturation', 'lightness', 'alpha'
+ ];
+ protected function libChangeColor($args)
+ {
+ return $this->alterColor($args, function ($base, $alter, $i) {
+ return $alter;
+ });
+ }
+
+ protected static $libScaleColor = [
+ 'color', 'red', 'green', 'blue',
+ 'hue', 'saturation', 'lightness', 'alpha'
+ ];
+ protected function libScaleColor($args)
+ {
+ return $this->alterColor($args, function ($base, $scale, $i) {
+ // 1, 2, 3 - rgb
+ // 4, 5, 6 - hsl
+ // 7 - a
+ switch ($i) {
+ case 1:
+ case 2:
+ case 3:
+ $max = 255;
+ break;
+
+ case 4:
+ $max = 360;
+ break;
+
+ case 7:
+ $max = 1;
+ break;
+
+ default:
+ $max = 100;
+ }
+
+ $scale = $scale / 100;
+
+ if ($scale < 0) {
+ return $base * $scale + $base;
+ }
+
+ return ($max - $base) * $scale + $base;
+ });
+ }
+
+ protected static $libIeHexStr = ['color'];
+ protected function libIeHexStr($args)
+ {
+ $color = $this->coerceColor($args[0]);
+ $color[4] = isset($color[4]) ? round(255 * $color[4]) : 255;
+
+ return sprintf('#%02X%02X%02X%02X', $color[4], $color[1], $color[2], $color[3]);
+ }
+
+ protected static $libRed = ['color'];
+ protected function libRed($args)
+ {
+ $color = $this->coerceColor($args[0]);
+
+ return $color[1];
+ }
+
+ protected static $libGreen = ['color'];
+ protected function libGreen($args)
+ {
+ $color = $this->coerceColor($args[0]);
+
+ return $color[2];
+ }
+
+ protected static $libBlue = ['color'];
+ protected function libBlue($args)
+ {
+ $color = $this->coerceColor($args[0]);
+
+ return $color[3];
+ }
+
+ protected static $libAlpha = ['color'];
+ protected function libAlpha($args)
+ {
+ if ($color = $this->coerceColor($args[0])) {
+ return isset($color[4]) ? $color[4] : 1;
+ }
+
+ // this might be the IE function, so return value unchanged
+ return null;
+ }
+
+ protected static $libOpacity = ['color'];
+ protected function libOpacity($args)
+ {
+ $value = $args[0];
+
+ if ($value[0] === Type::T_NUMBER) {
+ return null;
+ }
+
+ return $this->libAlpha($args);
+ }
+
+ // mix two colors
+ protected static $libMix = ['color-1', 'color-2', 'weight'];
+ protected function libMix($args)
+ {
+ list($first, $second, $weight) = $args;
+
+ $first = $this->assertColor($first);
+ $second = $this->assertColor($second);
+
+ if (! isset($weight)) {
+ $weight = 0.5;
+ } else {
+ $weight = $this->coercePercent($weight);
+ }
+
+ $firstAlpha = isset($first[4]) ? $first[4] : 1;
+ $secondAlpha = isset($second[4]) ? $second[4] : 1;
+
+ $w = $weight * 2 - 1;
+ $a = $firstAlpha - $secondAlpha;
+
+ $w1 = (($w * $a === -1 ? $w : ($w + $a) / (1 + $w * $a)) + 1) / 2.0;
+ $w2 = 1.0 - $w1;
+
+ $new = [Type::T_COLOR,
+ $w1 * $first[1] + $w2 * $second[1],
+ $w1 * $first[2] + $w2 * $second[2],
+ $w1 * $first[3] + $w2 * $second[3],
+ ];
+
+ if ($firstAlpha != 1.0 || $secondAlpha != 1.0) {
+ $new[] = $firstAlpha * $weight + $secondAlpha * (1 - $weight);
+ }
+
+ return $this->fixColor($new);
+ }
+
+ protected static $libHsl = ['hue', 'saturation', 'lightness'];
+ protected function libHsl($args)
+ {
+ list($h, $s, $l) = $args;
+
+ return $this->toRGB($h[1], $s[1], $l[1]);
+ }
+
+ protected static $libHsla = ['hue', 'saturation', 'lightness', 'alpha'];
+ protected function libHsla($args)
+ {
+ list($h, $s, $l, $a) = $args;
+
+ $color = $this->toRGB($h[1], $s[1], $l[1]);
+ $color[4] = $a[1];
+
+ return $color;
+ }
+
+ protected static $libHue = ['color'];
+ protected function libHue($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $hsl = $this->toHSL($color[1], $color[2], $color[3]);
+
+ return new Node\Number($hsl[1], 'deg');
+ }
+
+ protected static $libSaturation = ['color'];
+ protected function libSaturation($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $hsl = $this->toHSL($color[1], $color[2], $color[3]);
+
+ return new Node\Number($hsl[2], '%');
+ }
+
+ protected static $libLightness = ['color'];
+ protected function libLightness($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $hsl = $this->toHSL($color[1], $color[2], $color[3]);
+
+ return new Node\Number($hsl[3], '%');
+ }
+
+ protected function adjustHsl($color, $idx, $amount)
+ {
+ $hsl = $this->toHSL($color[1], $color[2], $color[3]);
+ $hsl[$idx] += $amount;
+ $out = $this->toRGB($hsl[1], $hsl[2], $hsl[3]);
+
+ if (isset($color[4])) {
+ $out[4] = $color[4];
+ }
+
+ return $out;
+ }
+
+ protected static $libAdjustHue = ['color', 'degrees'];
+ protected function libAdjustHue($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $degrees = $this->assertNumber($args[1]);
+
+ return $this->adjustHsl($color, 1, $degrees);
+ }
+
+ protected static $libLighten = ['color', 'amount'];
+ protected function libLighten($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $amount = Util::checkRange('amount', new Range(0, 100), $args[1], '%');
+
+ return $this->adjustHsl($color, 3, $amount);
+ }
+
+ protected static $libDarken = ['color', 'amount'];
+ protected function libDarken($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $amount = Util::checkRange('amount', new Range(0, 100), $args[1], '%');
+
+ return $this->adjustHsl($color, 3, -$amount);
+ }
+
+ protected static $libSaturate = ['color', 'amount'];
+ protected function libSaturate($args)
+ {
+ $value = $args[0];
+
+ if ($value[0] === Type::T_NUMBER) {
+ return null;
+ }
+
+ $color = $this->assertColor($value);
+ $amount = 100 * $this->coercePercent($args[1]);
+
+ return $this->adjustHsl($color, 2, $amount);
+ }
+
+ protected static $libDesaturate = ['color', 'amount'];
+ protected function libDesaturate($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $amount = 100 * $this->coercePercent($args[1]);
+
+ return $this->adjustHsl($color, 2, -$amount);
+ }
+
+ protected static $libGrayscale = ['color'];
+ protected function libGrayscale($args)
+ {
+ $value = $args[0];
+
+ if ($value[0] === Type::T_NUMBER) {
+ return null;
+ }
+
+ return $this->adjustHsl($this->assertColor($value), 2, -100);
+ }
+
+ protected static $libComplement = ['color'];
+ protected function libComplement($args)
+ {
+ return $this->adjustHsl($this->assertColor($args[0]), 1, 180);
+ }
+
+ protected static $libInvert = ['color'];
+ protected function libInvert($args)
+ {
+ $value = $args[0];
+
+ if ($value[0] === Type::T_NUMBER) {
+ return null;
+ }
+
+ $color = $this->assertColor($value);
+ $color[1] = 255 - $color[1];
+ $color[2] = 255 - $color[2];
+ $color[3] = 255 - $color[3];
+
+ return $color;
+ }
+
+ // increases opacity by amount
+ protected static $libOpacify = ['color', 'amount'];
+ protected function libOpacify($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $amount = $this->coercePercent($args[1]);
+
+ $color[4] = (isset($color[4]) ? $color[4] : 1) + $amount;
+ $color[4] = min(1, max(0, $color[4]));
+
+ return $color;
+ }
+
+ protected static $libFadeIn = ['color', 'amount'];
+ protected function libFadeIn($args)
+ {
+ return $this->libOpacify($args);
+ }
+
+ // decreases opacity by amount
+ protected static $libTransparentize = ['color', 'amount'];
+ protected function libTransparentize($args)
+ {
+ $color = $this->assertColor($args[0]);
+ $amount = $this->coercePercent($args[1]);
+
+ $color[4] = (isset($color[4]) ? $color[4] : 1) - $amount;
+ $color[4] = min(1, max(0, $color[4]));
+
+ return $color;
+ }
+
+ protected static $libFadeOut = ['color', 'amount'];
+ protected function libFadeOut($args)
+ {
+ return $this->libTransparentize($args);
+ }
+
+ protected static $libUnquote = ['string'];
+ protected function libUnquote($args)
+ {
+ $str = $args[0];
+
+ if ($str[0] === Type::T_STRING) {
+ $str[1] = '';
+ }
+
+ return $str;
+ }
+
+ protected static $libQuote = ['string'];
+ protected function libQuote($args)
+ {
+ $value = $args[0];
+
+ if ($value[0] === Type::T_STRING && ! empty($value[1])) {
+ return $value;
+ }
+
+ return [Type::T_STRING, '"', [$value]];
+ }
+
+ protected static $libPercentage = ['value'];
+ protected function libPercentage($args)
+ {
+ return new Node\Number($this->coercePercent($args[0]) * 100, '%');
+ }
+
+ protected static $libRound = ['value'];
+ protected function libRound($args)
+ {
+ $num = $args[0];
+
+ return new Node\Number(round($num[1]), $num[2]);
+ }
+
+ protected static $libFloor = ['value'];
+ protected function libFloor($args)
+ {
+ $num = $args[0];
+
+ return new Node\Number(floor($num[1]), $num[2]);
+ }
+
+ protected static $libCeil = ['value'];
+ protected function libCeil($args)
+ {
+ $num = $args[0];
+
+ return new Node\Number(ceil($num[1]), $num[2]);
+ }
+
+ protected static $libAbs = ['value'];
+ protected function libAbs($args)
+ {
+ $num = $args[0];
+
+ return new Node\Number(abs($num[1]), $num[2]);
+ }
+
+ protected function libMin($args)
+ {
+ $numbers = $this->getNormalizedNumbers($args);
+ $min = null;
+
+ foreach ($numbers as $key => $number) {
+ if (null === $min || $number[1] <= $min[1]) {
+ $min = [$key, $number[1]];
+ }
+ }
+
+ return $args[$min[0]];
+ }
+
+ protected function libMax($args)
+ {
+ $numbers = $this->getNormalizedNumbers($args);
+ $max = null;
+
+ foreach ($numbers as $key => $number) {
+ if (null === $max || $number[1] >= $max[1]) {
+ $max = [$key, $number[1]];
+ }
+ }
+
+ return $args[$max[0]];
+ }
+
+ /**
+ * Helper to normalize args containing numbers
+ *
+ * @param array $args
+ *
+ * @return array
+ */
+ protected function getNormalizedNumbers($args)
+ {
+ $unit = null;
+ $originalUnit = null;
+ $numbers = [];
+
+ foreach ($args as $key => $item) {
+ if ($item[0] !== Type::T_NUMBER) {
+ $this->throwError('%s is not a number', $item[0]);
+ break;
+ }
+
+ $number = $item->normalize();
+
+ if (null === $unit) {
+ $unit = $number[2];
+ $originalUnit = $item->unitStr();
+ } elseif ($number[1] && $unit !== $number[2]) {
+ $this->throwError('Incompatible units: "%s" and "%s".', $originalUnit, $item->unitStr());
+ break;
+ }
+
+ $numbers[$key] = $number;
+ }
+
+ return $numbers;
+ }
+
+ protected static $libLength = ['list'];
+ protected function libLength($args)
+ {
+ $list = $this->coerceList($args[0]);
+
+ return count($list[2]);
+ }
+
+ //protected static $libListSeparator = ['list...'];
+ protected function libListSeparator($args)
+ {
+ if (count($args) > 1) {
+ return 'comma';
+ }
+
+ $list = $this->coerceList($args[0]);
+
+ if (count($list[2]) <= 1) {
+ return 'space';
+ }
+
+ if ($list[1] === ',') {
+ return 'comma';
+ }
+
+ return 'space';
+ }
+
+ protected static $libNth = ['list', 'n'];
+ protected function libNth($args)
+ {
+ $list = $this->coerceList($args[0]);
+ $n = $this->assertNumber($args[1]);
+
+ if ($n > 0) {
+ $n--;
+ } elseif ($n < 0) {
+ $n += count($list[2]);
+ }
+
+ return isset($list[2][$n]) ? $list[2][$n] : static::$defaultValue;
+ }
+
+ protected static $libSetNth = ['list', 'n', 'value'];
+ protected function libSetNth($args)
+ {
+ $list = $this->coerceList($args[0]);
+ $n = $this->assertNumber($args[1]);
+
+ if ($n > 0) {
+ $n--;
+ } elseif ($n < 0) {
+ $n += count($list[2]);
+ }
+
+ if (! isset($list[2][$n])) {
+ $this->throwError('Invalid argument for "n"');
+
+ return;
+ }
+
+ $list[2][$n] = $args[2];
+
+ return $list;
+ }
+
+ protected static $libMapGet = ['map', 'key'];
+ protected function libMapGet($args)
+ {
+ $map = $this->assertMap($args[0]);
+ $key = $this->compileStringContent($this->coerceString($args[1]));
+
+ for ($i = count($map[1]) - 1; $i >= 0; $i--) {
+ if ($key === $this->compileStringContent($this->coerceString($map[1][$i]))) {
+ return $map[2][$i];
+ }
+ }
+
+ return static::$null;
+ }
+
+ protected static $libMapKeys = ['map'];
+ protected function libMapKeys($args)
+ {
+ $map = $this->assertMap($args[0]);
+ $keys = $map[1];
+
+ return [Type::T_LIST, ',', $keys];
+ }
+
+ protected static $libMapValues = ['map'];
+ protected function libMapValues($args)
+ {
+ $map = $this->assertMap($args[0]);
+ $values = $map[2];
+
+ return [Type::T_LIST, ',', $values];
+ }
+
+ protected static $libMapRemove = ['map', 'key'];
+ protected function libMapRemove($args)
+ {
+ $map = $this->assertMap($args[0]);
+ $key = $this->compileStringContent($this->coerceString($args[1]));
+
+ for ($i = count($map[1]) - 1; $i >= 0; $i--) {
+ if ($key === $this->compileStringContent($this->coerceString($map[1][$i]))) {
+ array_splice($map[1], $i, 1);
+ array_splice($map[2], $i, 1);
+ }
+ }
+
+ return $map;
+ }
+
+ protected static $libMapHasKey = ['map', 'key'];
+ protected function libMapHasKey($args)
+ {
+ $map = $this->assertMap($args[0]);
+ $key = $this->compileStringContent($this->coerceString($args[1]));
+
+ for ($i = count($map[1]) - 1; $i >= 0; $i--) {
+ if ($key === $this->compileStringContent($this->coerceString($map[1][$i]))) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ protected static $libMapMerge = ['map-1', 'map-2'];
+ protected function libMapMerge($args)
+ {
+ $map1 = $this->assertMap($args[0]);
+ $map2 = $this->assertMap($args[1]);
+
+ foreach ($map2[1] as $i2 => $key2) {
+ $key = $this->compileStringContent($this->coerceString($key2));
+
+ foreach ($map1[1] as $i1 => $key1) {
+ if ($key === $this->compileStringContent($this->coerceString($key1))) {
+ $map1[2][$i1] = $map2[2][$i2];
+ continue 2;
+ }
+ }
+
+ $map1[1][] = $map2[1][$i2];
+ $map1[2][] = $map2[2][$i2];
+ }
+
+ return $map1;
+ }
+
+ protected static $libKeywords = ['args'];
+ protected function libKeywords($args)
+ {
+ $this->assertList($args[0]);
+
+ $keys = [];
+ $values = [];
+
+ foreach ($args[0][2] as $name => $arg) {
+ $keys[] = [Type::T_KEYWORD, $name];
+ $values[] = $arg;
+ }
+
+ return [Type::T_MAP, $keys, $values];
+ }
+
+ protected function listSeparatorForJoin($list1, $sep)
+ {
+ if (! isset($sep)) {
+ return $list1[1];
+ }
+
+ switch ($this->compileValue($sep)) {
+ case 'comma':
+ return ',';
+
+ case 'space':
+ return '';
+
+ default:
+ return $list1[1];
+ }
+ }
+
+ protected static $libJoin = ['list1', 'list2', 'separator'];
+ protected function libJoin($args)
+ {
+ list($list1, $list2, $sep) = $args;
+
+ $list1 = $this->coerceList($list1, ' ');
+ $list2 = $this->coerceList($list2, ' ');
+ $sep = $this->listSeparatorForJoin($list1, $sep);
+
+ return [Type::T_LIST, $sep, array_merge($list1[2], $list2[2])];
+ }
+
+ protected static $libAppend = ['list', 'val', 'separator'];
+ protected function libAppend($args)
+ {
+ list($list1, $value, $sep) = $args;
+
+ $list1 = $this->coerceList($list1, ' ');
+ $sep = $this->listSeparatorForJoin($list1, $sep);
+
+ return [Type::T_LIST, $sep, array_merge($list1[2], [$value])];
+ }
+
+ protected function libZip($args)
+ {
+ foreach ($args as $arg) {
+ $this->assertList($arg);
+ }
+
+ $lists = [];
+ $firstList = array_shift($args);
+
+ foreach ($firstList[2] as $key => $item) {
+ $list = [Type::T_LIST, '', [$item]];
+
+ foreach ($args as $arg) {
+ if (isset($arg[2][$key])) {
+ $list[2][] = $arg[2][$key];
+ } else {
+ break 2;
+ }
+ }
+
+ $lists[] = $list;
+ }
+
+ return [Type::T_LIST, ',', $lists];
+ }
+
+ protected static $libTypeOf = ['value'];
+ protected function libTypeOf($args)
+ {
+ $value = $args[0];
+
+ switch ($value[0]) {
+ case Type::T_KEYWORD:
+ if ($value === static::$true || $value === static::$false) {
+ return 'bool';
+ }
+
+ if ($this->coerceColor($value)) {
+ return 'color';
+ }
+
+ // fall-thru
+ case Type::T_FUNCTION:
+ return 'string';
+
+ case Type::T_LIST:
+ if (isset($value[3]) && $value[3]) {
+ return 'arglist';
+ }
+
+ // fall-thru
+ default:
+ return $value[0];
+ }
+ }
+
+ protected static $libUnit = ['number'];
+ protected function libUnit($args)
+ {
+ $num = $args[0];
+
+ if ($num[0] === Type::T_NUMBER) {
+ return [Type::T_STRING, '"', [$num->unitStr()]];
+ }
+
+ return '';
+ }
+
+ protected static $libUnitless = ['number'];
+ protected function libUnitless($args)
+ {
+ $value = $args[0];
+
+ return $value[0] === Type::T_NUMBER && $value->unitless();
+ }
+
+ protected static $libComparable = ['number-1', 'number-2'];
+ protected function libComparable($args)
+ {
+ list($number1, $number2) = $args;
+
+ if (! isset($number1[0]) || $number1[0] !== Type::T_NUMBER ||
+ ! isset($number2[0]) || $number2[0] !== Type::T_NUMBER
+ ) {
+ $this->throwError('Invalid argument(s) for "comparable"');
+
+ return;
+ }
+
+ $number1 = $number1->normalize();
+ $number2 = $number2->normalize();
+
+ return $number1[2] === $number2[2] || $number1->unitless() || $number2->unitless();
+ }
+
+ protected static $libStrIndex = ['string', 'substring'];
+ protected function libStrIndex($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $stringContent = $this->compileStringContent($string);
+
+ $substring = $this->coerceString($args[1]);
+ $substringContent = $this->compileStringContent($substring);
+
+ $result = strpos($stringContent, $substringContent);
+
+ return $result === false ? static::$null : new Node\Number($result + 1, '');
+ }
+
+ protected static $libStrInsert = ['string', 'insert', 'index'];
+ protected function libStrInsert($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $stringContent = $this->compileStringContent($string);
+
+ $insert = $this->coerceString($args[1]);
+ $insertContent = $this->compileStringContent($insert);
+
+ list(, $index) = $args[2];
+
+ $string[2] = [substr_replace($stringContent, $insertContent, $index - 1, 0)];
+
+ return $string;
+ }
+
+ protected static $libStrLength = ['string'];
+ protected function libStrLength($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $stringContent = $this->compileStringContent($string);
+
+ return new Node\Number(strlen($stringContent), '');
+ }
+
+ protected static $libStrSlice = ['string', 'start-at', 'end-at'];
+ protected function libStrSlice($args)
+ {
+ if (isset($args[2]) && $args[2][1] == 0) {
+ return static::$nullString;
+ }
+
+ $string = $this->coerceString($args[0]);
+ $stringContent = $this->compileStringContent($string);
+
+ $start = (int) $args[1][1];
+
+ if ($start > 0) {
+ $start--;
+ }
+
+ $end = (int) $args[2][1];
+ $length = $end < 0 ? $end + 1 : ($end > 0 ? $end - $start : $end);
+
+ $string[2] = $length
+ ? [substr($stringContent, $start, $length)]
+ : [substr($stringContent, $start)];
+
+ return $string;
+ }
+
+ protected static $libToLowerCase = ['string'];
+ protected function libToLowerCase($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $stringContent = $this->compileStringContent($string);
+
+ $string[2] = [function_exists('mb_strtolower') ? mb_strtolower($stringContent) : strtolower($stringContent)];
+
+ return $string;
+ }
+
+ protected static $libToUpperCase = ['string'];
+ protected function libToUpperCase($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $stringContent = $this->compileStringContent($string);
+
+ $string[2] = [function_exists('mb_strtoupper') ? mb_strtoupper($stringContent) : strtoupper($stringContent)];
+
+ return $string;
+ }
+
+ protected static $libFeatureExists = ['feature'];
+ protected function libFeatureExists($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $name = $this->compileStringContent($string);
+
+ return $this->toBool(
+ array_key_exists($name, $this->registeredFeatures) ? $this->registeredFeatures[$name] : false
+ );
+ }
+
+ protected static $libFunctionExists = ['name'];
+ protected function libFunctionExists($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $name = $this->compileStringContent($string);
+
+ // user defined functions
+ if ($this->has(static::$namespaces['function'] . $name)) {
+ return true;
+ }
+
+ $name = $this->normalizeName($name);
+
+ if (isset($this->userFunctions[$name])) {
+ return true;
+ }
+
+ // built-in functions
+ $f = $this->getBuiltinFunction($name);
+
+ return $this->toBool(is_callable($f));
+ }
+
+ protected static $libGlobalVariableExists = ['name'];
+ protected function libGlobalVariableExists($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $name = $this->compileStringContent($string);
+
+ return $this->has($name, $this->rootEnv);
+ }
+
+ protected static $libMixinExists = ['name'];
+ protected function libMixinExists($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $name = $this->compileStringContent($string);
+
+ return $this->has(static::$namespaces['mixin'] . $name);
+ }
+
+ protected static $libVariableExists = ['name'];
+ protected function libVariableExists($args)
+ {
+ $string = $this->coerceString($args[0]);
+ $name = $this->compileStringContent($string);
+
+ return $this->has($name);
+ }
+
+ /**
+ * Workaround IE7's content counter bug.
+ *
+ * @param array $args
+ *
+ * @return array
+ */
+ protected function libCounter($args)
+ {
+ $list = array_map([$this, 'compileValue'], $args);
+
+ return [Type::T_STRING, '', ['counter(' . implode(',', $list) . ')']];
+ }
+
+ protected static $libRandom = ['limit'];
+ protected function libRandom($args)
+ {
+ if (isset($args[0])) {
+ $n = $this->assertNumber($args[0]);
+
+ if ($n < 1) {
+ $this->throwError("limit must be greater than or equal to 1");
+
+ return;
+ }
+
+ return new Node\Number(mt_rand(1, $n), '');
+ }
+
+ return new Node\Number(mt_rand(1, mt_getrandmax()), '');
+ }
+
+ protected function libUniqueId()
+ {
+ static $id;
+
+ if (! isset($id)) {
+ $id = mt_rand(0, pow(36, 8));
+ }
+
+ $id += mt_rand(0, 10) + 1;
+
+ return [Type::T_STRING, '', ['u' . str_pad(base_convert($id, 10, 36), 8, '0', STR_PAD_LEFT)]];
+ }
+
+ protected static $libInspect = ['value'];
+ protected function libInspect($args)
+ {
+ if ($args[0] === static::$null) {
+ return [Type::T_KEYWORD, 'null'];
+ }
+
+ return $args[0];
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Compiler;
+
+/**
+ * Compiler environment
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Environment
+{
+ /**
+ * @var \Leafo\ScssPhp\Block
+ */
+ public $block;
+
+ /**
+ * @var \Leafo\ScssPhp\Compiler\Environment
+ */
+ public $parent;
+
+ /**
+ * @var array
+ */
+ public $store;
+
+ /**
+ * @var integer
+ */
+ public $depth;
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Exception;
+
+/**
+ * Compiler exception
+ *
+ * @author Oleksandr Savchenko <traveltino@gmail.com>
+ */
+class CompilerException extends \Exception
+{
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Exception;
+
+/**
+ * Parser Exception
+ *
+ * @author Oleksandr Savchenko <traveltino@gmail.com>
+ */
+class ParserException extends \Exception
+{
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Exception;
+
+/**
+ * Range exception
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class RangeException extends \Exception
+{
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Exception;
+
+/**
+ * Server Exception
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class ServerException extends \Exception
+{
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+use Leafo\ScssPhp\Formatter\OutputBlock;
+use Leafo\ScssPhp\SourceMap\SourceMapGenerator;
+
+/**
+ * Base formatter
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+abstract class Formatter
+{
+ /**
+ * @var integer
+ */
+ public $indentLevel;
+
+ /**
+ * @var string
+ */
+ public $indentChar;
+
+ /**
+ * @var string
+ */
+ public $break;
+
+ /**
+ * @var string
+ */
+ public $open;
+
+ /**
+ * @var string
+ */
+ public $close;
+
+ /**
+ * @var string
+ */
+ public $tagSeparator;
+
+ /**
+ * @var string
+ */
+ public $assignSeparator;
+
+ /**
+ * @var boolean
+ */
+ public $keepSemicolons;
+
+ /**
+ * @var \Leafo\ScssPhp\Formatter\OutputBlock
+ */
+ protected $currentBlock;
+
+ /**
+ * @var integer
+ */
+ protected $currentLine;
+
+ /**
+ * @var integer
+ */
+ protected $currentColumn;
+
+ /**
+ * @var \Leafo\ScssPhp\SourceMap\SourceMapGenerator
+ */
+ protected $sourceMapGenerator;
+
+ /**
+ * Initialize formatter
+ *
+ * @api
+ */
+ abstract public function __construct();
+
+ /**
+ * Return indentation (whitespace)
+ *
+ * @return string
+ */
+ protected function indentStr()
+ {
+ return '';
+ }
+
+ /**
+ * Return property assignment
+ *
+ * @api
+ *
+ * @param string $name
+ * @param mixed $value
+ *
+ * @return string
+ */
+ public function property($name, $value)
+ {
+ return rtrim($name) . $this->assignSeparator . $value . ';';
+ }
+
+ /**
+ * Strip semi-colon appended by property(); it's a separator, not a terminator
+ *
+ * @api
+ *
+ * @param array $lines
+ */
+ public function stripSemicolon(&$lines)
+ {
+ if ($this->keepSemicolons) {
+ return;
+ }
+
+ if (($count = count($lines))
+ && substr($lines[$count - 1], -1) === ';'
+ ) {
+ $lines[$count - 1] = substr($lines[$count - 1], 0, -1);
+ }
+ }
+
+ /**
+ * Output lines inside a block
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block
+ */
+ protected function blockLines(OutputBlock $block)
+ {
+ $inner = $this->indentStr();
+
+ $glue = $this->break . $inner;
+
+ $this->write($inner . implode($glue, $block->lines));
+
+ if (! empty($block->children)) {
+ $this->write($this->break);
+ }
+ }
+
+ /**
+ * Output block selectors
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block
+ */
+ protected function blockSelectors(OutputBlock $block)
+ {
+ $inner = $this->indentStr();
+
+ $this->write($inner
+ . implode($this->tagSeparator, $block->selectors)
+ . $this->open . $this->break);
+ }
+
+ /**
+ * Output block children
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block
+ */
+ protected function blockChildren(OutputBlock $block)
+ {
+ foreach ($block->children as $child) {
+ $this->block($child);
+ }
+ }
+
+ /**
+ * Output non-empty block
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block
+ */
+ protected function block(OutputBlock $block)
+ {
+ if (empty($block->lines) && empty($block->children)) {
+ return;
+ }
+
+ $this->currentBlock = $block;
+
+ $pre = $this->indentStr();
+
+ if (! empty($block->selectors)) {
+ $this->blockSelectors($block);
+
+ $this->indentLevel++;
+ }
+
+ if (! empty($block->lines)) {
+ $this->blockLines($block);
+ }
+
+ if (! empty($block->children)) {
+ $this->blockChildren($block);
+ }
+
+ if (! empty($block->selectors)) {
+ $this->indentLevel--;
+
+ if (empty($block->children)) {
+ $this->write($this->break);
+ }
+
+ $this->write($pre . $this->close . $this->break);
+ }
+ }
+
+ /**
+ * Entry point to formatting a block
+ *
+ * @api
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block An abstract syntax tree
+ * @param \Leafo\ScssPhp\SourceMap\SourceMapGenerator|null $sourceMapGenerator Optional source map generator
+ *
+ * @return string
+ */
+ public function format(OutputBlock $block, SourceMapGenerator $sourceMapGenerator = null)
+ {
+ $this->sourceMapGenerator = null;
+
+ if ($sourceMapGenerator) {
+ $this->currentLine = 1;
+ $this->currentColumn = 0;
+ $this->sourceMapGenerator = $sourceMapGenerator;
+ }
+
+ ob_start();
+
+ $this->block($block);
+
+ $out = ob_get_clean();
+
+ return $out;
+ }
+
+ /**
+ * @param string $str
+ */
+ protected function write($str)
+ {
+ if ($this->sourceMapGenerator) {
+ $this->sourceMapGenerator->addMapping(
+ $this->currentLine,
+ $this->currentColumn,
+ $this->currentBlock->sourceLine,
+ $this->currentBlock->sourceColumn - 1, //columns from parser are off by one
+ $this->currentBlock->sourceName
+ );
+
+ $lines = explode("\n", $str);
+ $lineCount = count($lines);
+ $this->currentLine += $lineCount-1;
+
+ $lastLine = array_pop($lines);
+
+ $this->currentColumn = ($lineCount === 1 ? $this->currentColumn : 0) + strlen($lastLine);
+ }
+
+ echo $str;
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Formatter;
+
+use Leafo\ScssPhp\Formatter;
+
+/**
+ * Compact formatter
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Compact extends Formatter
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct()
+ {
+ $this->indentLevel = 0;
+ $this->indentChar = '';
+ $this->break = '';
+ $this->open = ' {';
+ $this->close = "}\n\n";
+ $this->tagSeparator = ',';
+ $this->assignSeparator = ':';
+ $this->keepSemicolons = true;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function indentStr()
+ {
+ return ' ';
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Formatter;
+
+use Leafo\ScssPhp\Formatter;
+use Leafo\ScssPhp\Formatter\OutputBlock;
+
+/**
+ * Compressed formatter
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Compressed extends Formatter
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct()
+ {
+ $this->indentLevel = 0;
+ $this->indentChar = ' ';
+ $this->break = '';
+ $this->open = '{';
+ $this->close = '}';
+ $this->tagSeparator = ',';
+ $this->assignSeparator = ':';
+ $this->keepSemicolons = false;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function blockLines(OutputBlock $block)
+ {
+ $inner = $this->indentStr();
+
+ $glue = $this->break . $inner;
+
+ foreach ($block->lines as $index => $line) {
+ if (substr($line, 0, 2) === '/*' && substr($line, 2, 1) !== '!') {
+ unset($block->lines[$index]);
+ } elseif (substr($line, 0, 3) === '/*!') {
+ $block->lines[$index] = '/*' . substr($line, 3);
+ }
+ }
+
+ $this->write($inner . implode($glue, $block->lines));
+
+ if (! empty($block->children)) {
+ $this->write($this->break);
+ }
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Formatter;
+
+use Leafo\ScssPhp\Formatter;
+use Leafo\ScssPhp\Formatter\OutputBlock;
+
+/**
+ * Crunched formatter
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Crunched extends Formatter
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct()
+ {
+ $this->indentLevel = 0;
+ $this->indentChar = ' ';
+ $this->break = '';
+ $this->open = '{';
+ $this->close = '}';
+ $this->tagSeparator = ',';
+ $this->assignSeparator = ':';
+ $this->keepSemicolons = false;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function blockLines(OutputBlock $block)
+ {
+ $inner = $this->indentStr();
+
+ $glue = $this->break . $inner;
+
+ foreach ($block->lines as $index => $line) {
+ if (substr($line, 0, 2) === '/*') {
+ unset($block->lines[$index]);
+ }
+ }
+
+ $this->write($inner . implode($glue, $block->lines));
+
+ if (! empty($block->children)) {
+ $this->write($this->break);
+ }
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Formatter;
+
+use Leafo\ScssPhp\Formatter;
+use Leafo\ScssPhp\Formatter\OutputBlock;
+
+/**
+ * Debug formatter
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Debug extends Formatter
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct()
+ {
+ $this->indentLevel = 0;
+ $this->indentChar = '';
+ $this->break = "\n";
+ $this->open = ' {';
+ $this->close = ' }';
+ $this->tagSeparator = ', ';
+ $this->assignSeparator = ': ';
+ $this->keepSemicolons = true;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function indentStr()
+ {
+ return str_repeat(' ', $this->indentLevel);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function blockLines(OutputBlock $block)
+ {
+ $indent = $this->indentStr();
+
+ if (empty($block->lines)) {
+ $this->write("{$indent}block->lines: []\n");
+
+ return;
+ }
+
+ foreach ($block->lines as $index => $line) {
+ $this->write("{$indent}block->lines[{$index}]: $line\n");
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function blockSelectors(OutputBlock $block)
+ {
+ $indent = $this->indentStr();
+
+ if (empty($block->selectors)) {
+ $this->write("{$indent}block->selectors: []\n");
+
+ return;
+ }
+
+ foreach ($block->selectors as $index => $selector) {
+ $this->write("{$indent}block->selectors[{$index}]: $selector\n");
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function blockChildren(OutputBlock $block)
+ {
+ $indent = $this->indentStr();
+
+ if (empty($block->children)) {
+ $this->write("{$indent}block->children: []\n");
+
+ return;
+ }
+
+ $this->indentLevel++;
+
+ foreach ($block->children as $i => $child) {
+ $this->block($child);
+ }
+
+ $this->indentLevel--;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function block(OutputBlock $block)
+ {
+ $indent = $this->indentStr();
+
+ $this->write("{$indent}block->type: {$block->type}\n" .
+ "{$indent}block->depth: {$block->depth}\n");
+
+ $this->currentBlock = $block;
+
+ $this->blockSelectors($block);
+ $this->blockLines($block);
+ $this->blockChildren($block);
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Formatter;
+
+use Leafo\ScssPhp\Formatter;
+use Leafo\ScssPhp\Formatter\OutputBlock;
+
+/**
+ * Expanded formatter
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Expanded extends Formatter
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct()
+ {
+ $this->indentLevel = 0;
+ $this->indentChar = ' ';
+ $this->break = "\n";
+ $this->open = ' {';
+ $this->close = '}';
+ $this->tagSeparator = ', ';
+ $this->assignSeparator = ': ';
+ $this->keepSemicolons = true;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function indentStr()
+ {
+ return str_repeat($this->indentChar, $this->indentLevel);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function blockLines(OutputBlock $block)
+ {
+ $inner = $this->indentStr();
+
+ $glue = $this->break . $inner;
+
+ foreach ($block->lines as $index => $line) {
+ if (substr($line, 0, 2) === '/*') {
+ $block->lines[$index] = preg_replace('/(\r|\n)+/', $glue, $line);
+ }
+ }
+
+ $this->write($inner . implode($glue, $block->lines));
+
+ if (empty($block->selectors) || ! empty($block->children)) {
+ $this->write($this->break);
+ }
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Formatter;
+
+use Leafo\ScssPhp\Formatter;
+use Leafo\ScssPhp\Formatter\OutputBlock;
+
+/**
+ * Nested formatter
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Nested extends Formatter
+{
+ /**
+ * @var integer
+ */
+ private $depth;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct()
+ {
+ $this->indentLevel = 0;
+ $this->indentChar = ' ';
+ $this->break = "\n";
+ $this->open = ' {';
+ $this->close = ' }';
+ $this->tagSeparator = ', ';
+ $this->assignSeparator = ': ';
+ $this->keepSemicolons = true;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function indentStr()
+ {
+ $n = $this->depth - 1;
+
+ return str_repeat($this->indentChar, max($this->indentLevel + $n, 0));
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function blockLines(OutputBlock $block)
+ {
+ $inner = $this->indentStr();
+
+ $glue = $this->break . $inner;
+
+ foreach ($block->lines as $index => $line) {
+ if (substr($line, 0, 2) === '/*') {
+ $block->lines[$index] = preg_replace('/(\r|\n)+/', $glue, $line);
+ }
+ }
+
+ $this->write($inner . implode($glue, $block->lines));
+
+ if (! empty($block->children)) {
+ $this->write($this->break);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function blockSelectors(OutputBlock $block)
+ {
+ $inner = $this->indentStr();
+
+ $this->write($inner
+ . implode($this->tagSeparator, $block->selectors)
+ . $this->open . $this->break);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function blockChildren(OutputBlock $block)
+ {
+ foreach ($block->children as $i => $child) {
+ $this->block($child);
+
+ if ($i < count($block->children) - 1) {
+ $this->write($this->break);
+
+ if (isset($block->children[$i + 1])) {
+ $next = $block->children[$i + 1];
+
+ if ($next->depth === max($block->depth, 1) && $child->depth >= $next->depth) {
+ $this->write($this->break);
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function block(OutputBlock $block)
+ {
+ if ($block->type === 'root') {
+ $this->adjustAllChildren($block);
+ }
+
+ if (empty($block->lines) && empty($block->children)) {
+ return;
+ }
+
+ $this->currentBlock = $block;
+
+
+ $this->depth = $block->depth;
+
+ if (! empty($block->selectors)) {
+ $this->blockSelectors($block);
+
+ $this->indentLevel++;
+ }
+
+ if (! empty($block->lines)) {
+ $this->blockLines($block);
+ }
+
+ if (! empty($block->children)) {
+ $this->blockChildren($block);
+ }
+
+ if (! empty($block->selectors)) {
+ $this->indentLevel--;
+
+ $this->write($this->close);
+ }
+
+ if ($block->type === 'root') {
+ $this->write($this->break);
+ }
+ }
+
+ /**
+ * Adjust the depths of all children, depth first
+ *
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block
+ */
+ private function adjustAllChildren(OutputBlock $block)
+ {
+ // flatten empty nested blocks
+ $children = [];
+
+ foreach ($block->children as $i => $child) {
+ if (empty($child->lines) && empty($child->children)) {
+ if (isset($block->children[$i + 1])) {
+ $block->children[$i + 1]->depth = $child->depth;
+ }
+
+ continue;
+ }
+
+ $children[] = $child;
+ }
+
+ $count = count($children);
+
+ for ($i = 0; $i < $count; $i++) {
+ $depth = $children[$i]->depth;
+ $j = $i + 1;
+
+ if (isset($children[$j]) && $depth < $children[$j]->depth) {
+ $childDepth = $children[$j]->depth;
+
+ for (; $j < $count; $j++) {
+ if ($depth < $children[$j]->depth && $childDepth >= $children[$j]->depth) {
+ $children[$j]->depth = $depth + 1;
+ }
+ }
+ }
+ }
+
+ $block->children = $children;
+
+ // make relative to parent
+ foreach ($block->children as $child) {
+ $this->adjustAllChildren($child);
+
+ $child->depth = $child->depth - $block->depth;
+ }
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Formatter;
+
+/**
+ * Output block
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class OutputBlock
+{
+ /**
+ * @var string
+ */
+ public $type;
+
+ /**
+ * @var integer
+ */
+ public $depth;
+
+ /**
+ * @var array
+ */
+ public $selectors;
+
+ /**
+ * @var array
+ */
+ public $lines;
+
+ /**
+ * @var array
+ */
+ public $children;
+
+ /**
+ * @var \Leafo\ScssPhp\Formatter\OutputBlock
+ */
+ public $parent;
+
+ /**
+ * @var string
+ */
+ public $sourceName;
+
+ /**
+ * @var integer
+ */
+ public $sourceLine;
+
+ /**
+ * @var integer
+ */
+ public $sourceColumn;
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+/**
+ * Base node
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+abstract class Node
+{
+ /**
+ * @var string
+ */
+ public $type;
+
+ /**
+ * @var integer
+ */
+ public $sourceIndex;
+
+ /**
+ * @var integer
+ */
+ public $sourceLine;
+
+ /**
+ * @var integer
+ */
+ public $sourceColumn;
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\Node;
+
+use Leafo\ScssPhp\Compiler;
+use Leafo\ScssPhp\Node;
+use Leafo\ScssPhp\Type;
+
+/**
+ * Dimension + optional units
+ *
+ * {@internal
+ * This is a work-in-progress.
+ *
+ * The \ArrayAccess interface is temporary until the migration is complete.
+ * }}
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Number extends Node implements \ArrayAccess
+{
+ /**
+ * @var integer
+ */
+ static public $precision = 10;
+
+ /**
+ * @see http://www.w3.org/TR/2012/WD-css3-values-20120308/
+ *
+ * @var array
+ */
+ static protected $unitTable = [
+ 'in' => [
+ 'in' => 1,
+ 'pc' => 6,
+ 'pt' => 72,
+ 'px' => 96,
+ 'cm' => 2.54,
+ 'mm' => 25.4,
+ 'q' => 101.6,
+ ],
+ 'turn' => [
+ 'deg' => 360,
+ 'grad' => 400,
+ 'rad' => 6.28318530717958647692528676, // 2 * M_PI
+ 'turn' => 1,
+ ],
+ 's' => [
+ 's' => 1,
+ 'ms' => 1000,
+ ],
+ 'Hz' => [
+ 'Hz' => 1,
+ 'kHz' => 0.001,
+ ],
+ 'dpi' => [
+ 'dpi' => 1,
+ 'dpcm' => 2.54,
+ 'dppx' => 96,
+ ],
+ ];
+
+ /**
+ * @var integer|float
+ */
+ public $dimension;
+
+ /**
+ * @var array
+ */
+ public $units;
+
+ /**
+ * Initialize number
+ *
+ * @param mixed $dimension
+ * @param mixed $initialUnit
+ */
+ public function __construct($dimension, $initialUnit)
+ {
+ $this->type = Type::T_NUMBER;
+ $this->dimension = $dimension;
+ $this->units = is_array($initialUnit)
+ ? $initialUnit
+ : ($initialUnit ? [$initialUnit => 1]
+ : []);
+ }
+
+ /**
+ * Coerce number to target units
+ *
+ * @param array $units
+ *
+ * @return \Leafo\ScssPhp\Node\Number
+ */
+ public function coerce($units)
+ {
+ if ($this->unitless()) {
+ return new Number($this->dimension, $units);
+ }
+
+ $dimension = $this->dimension;
+
+ foreach (static::$unitTable['in'] as $unit => $conv) {
+ $from = isset($this->units[$unit]) ? $this->units[$unit] : 0;
+ $to = isset($units[$unit]) ? $units[$unit] : 0;
+ $factor = pow($conv, $from - $to);
+ $dimension /= $factor;
+ }
+
+ return new Number($dimension, $units);
+ }
+
+ /**
+ * Normalize number
+ *
+ * @return \Leafo\ScssPhp\Node\Number
+ */
+ public function normalize()
+ {
+ $dimension = $this->dimension;
+ $units = [];
+
+ $this->normalizeUnits($dimension, $units, 'in');
+
+ return new Number($dimension, $units);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function offsetExists($offset)
+ {
+ if ($offset === -3) {
+ return $this->sourceColumn !== null;
+ }
+
+ if ($offset === -2) {
+ return $this->sourceLine !== null;
+ }
+
+ if ($offset === -1
+ || $offset === 0
+ || $offset === 1
+ || $offset === 2
+ ) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function offsetGet($offset)
+ {
+ switch ($offset) {
+ case -3:
+ return $this->sourceColumn;
+
+ case -2:
+ return $this->sourceLine;
+
+ case -1:
+ return $this->sourceIndex;
+
+ case 0:
+ return $this->type;
+
+ case 1:
+ return $this->dimension;
+
+ case 2:
+ return $this->units;
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function offsetSet($offset, $value)
+ {
+ if ($offset === 1) {
+ $this->dimension = $value;
+ } elseif ($offset === 2) {
+ $this->units = $value;
+ } elseif ($offset == -1) {
+ $this->sourceIndex = $value;
+ } elseif ($offset == -2) {
+ $this->sourceLine = $value;
+ } elseif ($offset == -3) {
+ $this->sourceColumn = $value;
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function offsetUnset($offset)
+ {
+ if ($offset === 1) {
+ $this->dimension = null;
+ } elseif ($offset === 2) {
+ $this->units = null;
+ } elseif ($offset === -1) {
+ $this->sourceIndex = null;
+ } elseif ($offset === -2) {
+ $this->sourceLine = null;
+ } elseif ($offset === -3) {
+ $this->sourceColumn = null;
+ }
+ }
+
+ /**
+ * Returns true if the number is unitless
+ *
+ * @return boolean
+ */
+ public function unitless()
+ {
+ return ! array_sum($this->units);
+ }
+
+ /**
+ * Returns unit(s) as the product of numerator units divided by the product of denominator units
+ *
+ * @return string
+ */
+ public function unitStr()
+ {
+ $numerators = [];
+ $denominators = [];
+
+ foreach ($this->units as $unit => $unitSize) {
+ if ($unitSize > 0) {
+ $numerators = array_pad($numerators, count($numerators) + $unitSize, $unit);
+ continue;
+ }
+
+ if ($unitSize < 0) {
+ $denominators = array_pad($denominators, count($denominators) + $unitSize, $unit);
+ continue;
+ }
+ }
+
+ return implode('*', $numerators) . (count($denominators) ? '/' . implode('*', $denominators) : '');
+ }
+
+ /**
+ * Output number
+ *
+ * @param \Leafo\ScssPhp\Compiler $compiler
+ *
+ * @return string
+ */
+ public function output(Compiler $compiler = null)
+ {
+ $dimension = round($this->dimension, static::$precision);
+
+ $units = array_filter($this->units, function ($unitSize) {
+ return $unitSize;
+ });
+
+ if (count($units) > 1 && array_sum($units) === 0) {
+ $dimension = $this->dimension;
+ $units = [];
+
+ $this->normalizeUnits($dimension, $units, 'in');
+
+ $dimension = round($dimension, static::$precision);
+ $units = array_filter($units, function ($unitSize) {
+ return $unitSize;
+ });
+ }
+
+ $unitSize = array_sum($units);
+
+ if ($compiler && ($unitSize > 1 || $unitSize < 0 || count($units) > 1)) {
+ $compiler->throwError((string) $dimension . $this->unitStr() . " isn't a valid CSS value.");
+ }
+
+ reset($units);
+ $unit = key($units);
+ $dimension = number_format($dimension, static::$precision, '.', '');
+
+ return (static::$precision ? rtrim(rtrim($dimension, '0'), '.') : $dimension) . $unit;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __toString()
+ {
+ return $this->output();
+ }
+
+ /**
+ * Normalize units
+ *
+ * @param integer|float $dimension
+ * @param array $units
+ * @param string $baseUnit
+ */
+ private function normalizeUnits(&$dimension, &$units, $baseUnit = 'in')
+ {
+ $dimension = $this->dimension;
+ $units = [];
+
+ foreach ($this->units as $unit => $exp) {
+ if (isset(static::$unitTable[$baseUnit][$unit])) {
+ $factor = pow(static::$unitTable[$baseUnit][$unit], $exp);
+
+ $unit = $baseUnit;
+ $dimension /= $factor;
+ }
+
+ $units[$unit] = $exp + (isset($units[$unit]) ? $units[$unit] : 0);
+ }
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+use Leafo\ScssPhp\Block;
+use Leafo\ScssPhp\Compiler;
+use Leafo\ScssPhp\Exception\ParserException;
+use Leafo\ScssPhp\Node;
+use Leafo\ScssPhp\Type;
+
+/**
+ * Parser
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Parser
+{
+ const SOURCE_INDEX = -1;
+ const SOURCE_LINE = -2;
+ const SOURCE_COLUMN = -3;
+
+ /**
+ * @var array
+ */
+ protected static $precedence = [
+ '=' => 0,
+ 'or' => 1,
+ 'and' => 2,
+ '==' => 3,
+ '!=' => 3,
+ '<=>' => 3,
+ '<=' => 4,
+ '>=' => 4,
+ '<' => 4,
+ '>' => 4,
+ '+' => 5,
+ '-' => 5,
+ '*' => 6,
+ '/' => 6,
+ '%' => 6,
+ ];
+
+ protected static $commentPattern;
+ protected static $operatorPattern;
+ protected static $whitePattern;
+
+ private $sourceName;
+ private $sourceIndex;
+ private $sourcePositions;
+ private $charset;
+ private $count;
+ private $env;
+ private $inParens;
+ private $eatWhiteDefault;
+ private $buffer;
+ private $utf8;
+ private $encoding;
+ private $patternModifiers;
+
+ /**
+ * Constructor
+ *
+ * @api
+ *
+ * @param string $sourceName
+ * @param integer $sourceIndex
+ * @param string $encoding
+ */
+ public function __construct($sourceName, $sourceIndex = 0, $encoding = 'utf-8')
+ {
+ $this->sourceName = $sourceName ?: '(stdin)';
+ $this->sourceIndex = $sourceIndex;
+ $this->charset = null;
+ $this->utf8 = ! $encoding || strtolower($encoding) === 'utf-8';
+ $this->patternModifiers = $this->utf8 ? 'Aisu' : 'Ais';
+
+ if (empty(static::$operatorPattern)) {
+ static::$operatorPattern = '([*\/%+-]|[!=]\=|\>\=?|\<\=\>|\<\=?|and|or)';
+
+ $commentSingle = '\/\/';
+ $commentMultiLeft = '\/\*';
+ $commentMultiRight = '\*\/';
+
+ static::$commentPattern = $commentMultiLeft . '.*?' . $commentMultiRight;
+ static::$whitePattern = $this->utf8
+ ? '/' . $commentSingle . '[^\n]*\s*|(' . static::$commentPattern . ')\s*|\s+/AisuS'
+ : '/' . $commentSingle . '[^\n]*\s*|(' . static::$commentPattern . ')\s*|\s+/AisS';
+ }
+ }
+
+ /**
+ * Get source file name
+ *
+ * @api
+ *
+ * @return string
+ */
+ public function getSourceName()
+ {
+ return $this->sourceName;
+ }
+
+ /**
+ * Throw parser error
+ *
+ * @api
+ *
+ * @param string $msg
+ *
+ * @throws \Leafo\ScssPhp\Exception\ParserException
+ */
+ public function throwParseError($msg = 'parse error')
+ {
+ list($line, /* $column */) = $this->getSourcePosition($this->count);
+
+ $loc = empty($this->sourceName) ? "line: $line" : "$this->sourceName on line $line";
+
+ if ($this->peek("(.*?)(\n|$)", $m, $this->count)) {
+ throw new ParserException("$msg: failed at `$m[1]` $loc");
+ }
+
+ throw new ParserException("$msg: $loc");
+ }
+
+ /**
+ * Parser buffer
+ *
+ * @api
+ *
+ * @param string $buffer
+ *
+ * @return \Leafo\ScssPhp\Block
+ */
+ public function parse($buffer)
+ {
+ // strip BOM (byte order marker)
+ if (substr($buffer, 0, 3) === "\xef\xbb\xbf") {
+ $buffer = substr($buffer, 3);
+ }
+
+ $this->buffer = rtrim($buffer, "\x00..\x1f");
+ $this->count = 0;
+ $this->env = null;
+ $this->inParens = false;
+ $this->eatWhiteDefault = true;
+
+ $this->saveEncoding();
+ $this->extractLineNumbers($buffer);
+
+ $this->pushBlock(null); // root block
+ $this->whitespace();
+ $this->pushBlock(null);
+ $this->popBlock();
+
+ while ($this->parseChunk()) {
+ ;
+ }
+
+ if ($this->count !== strlen($this->buffer)) {
+ $this->throwParseError();
+ }
+
+ if (! empty($this->env->parent)) {
+ $this->throwParseError('unclosed block');
+ }
+
+ if ($this->charset) {
+ array_unshift($this->env->children, $this->charset);
+ }
+
+ $this->env->isRoot = true;
+
+ $this->restoreEncoding();
+
+ return $this->env;
+ }
+
+ /**
+ * Parse a value or value list
+ *
+ * @api
+ *
+ * @param string $buffer
+ * @param string $out
+ *
+ * @return boolean
+ */
+ public function parseValue($buffer, &$out)
+ {
+ $this->count = 0;
+ $this->env = null;
+ $this->inParens = false;
+ $this->eatWhiteDefault = true;
+ $this->buffer = (string) $buffer;
+
+ $this->saveEncoding();
+
+ $list = $this->valueList($out);
+
+ $this->restoreEncoding();
+
+ return $list;
+ }
+
+ /**
+ * Parse a selector or selector list
+ *
+ * @api
+ *
+ * @param string $buffer
+ * @param string $out
+ *
+ * @return boolean
+ */
+ public function parseSelector($buffer, &$out)
+ {
+ $this->count = 0;
+ $this->env = null;
+ $this->inParens = false;
+ $this->eatWhiteDefault = true;
+ $this->buffer = (string) $buffer;
+
+ $this->saveEncoding();
+
+ $selector = $this->selectors($out);
+
+ $this->restoreEncoding();
+
+ return $selector;
+ }
+
+ /**
+ * Parse a single chunk off the head of the buffer and append it to the
+ * current parse environment.
+ *
+ * Returns false when the buffer is empty, or when there is an error.
+ *
+ * This function is called repeatedly until the entire document is
+ * parsed.
+ *
+ * This parser is most similar to a recursive descent parser. Single
+ * functions represent discrete grammatical rules for the language, and
+ * they are able to capture the text that represents those rules.
+ *
+ * Consider the function Compiler::keyword(). (All parse functions are
+ * structured the same.)
+ *
+ * The function takes a single reference argument. When calling the
+ * function it will attempt to match a keyword on the head of the buffer.
+ * If it is successful, it will place the keyword in the referenced
+ * argument, advance the position in the buffer, and return true. If it
+ * fails then it won't advance the buffer and it will return false.
+ *
+ * All of these parse functions are powered by Compiler::match(), which behaves
+ * the same way, but takes a literal regular expression. Sometimes it is
+ * more convenient to use match instead of creating a new function.
+ *
+ * Because of the format of the functions, to parse an entire string of
+ * grammatical rules, you can chain them together using &&.
+ *
+ * But, if some of the rules in the chain succeed before one fails, then
+ * the buffer position will be left at an invalid state. In order to
+ * avoid this, Compiler::seek() is used to remember and set buffer positions.
+ *
+ * Before parsing a chain, use $s = $this->seek() to remember the current
+ * position into $s. Then if a chain fails, use $this->seek($s) to
+ * go back where we started.
+ *
+ * @return boolean
+ */
+ protected function parseChunk()
+ {
+ $s = $this->seek();
+
+ // the directives
+ if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] === '@') {
+ if ($this->literal('@at-root') &&
+ ($this->selectors($selector) || true) &&
+ ($this->map($with) || true) &&
+ $this->literal('{')
+ ) {
+ $atRoot = $this->pushSpecialBlock(Type::T_AT_ROOT, $s);
+ $atRoot->selector = $selector;
+ $atRoot->with = $with;
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@media') && $this->mediaQueryList($mediaQueryList) && $this->literal('{')) {
+ $media = $this->pushSpecialBlock(Type::T_MEDIA, $s);
+ $media->queryList = $mediaQueryList[2];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@mixin') &&
+ $this->keyword($mixinName) &&
+ ($this->argumentDef($args) || true) &&
+ $this->literal('{')
+ ) {
+ $mixin = $this->pushSpecialBlock(Type::T_MIXIN, $s);
+ $mixin->name = $mixinName;
+ $mixin->args = $args;
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@include') &&
+ $this->keyword($mixinName) &&
+ ($this->literal('(') &&
+ ($this->argValues($argValues) || true) &&
+ $this->literal(')') || true) &&
+ ($this->end() ||
+ $this->literal('{') && $hasBlock = true)
+ ) {
+ $child = [Type::T_INCLUDE, $mixinName, isset($argValues) ? $argValues : null, null];
+
+ if (! empty($hasBlock)) {
+ $include = $this->pushSpecialBlock(Type::T_INCLUDE, $s);
+ $include->child = $child;
+ } else {
+ $this->append($child, $s);
+ }
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@scssphp-import-once') &&
+ $this->valueList($importPath) &&
+ $this->end()
+ ) {
+ $this->append([Type::T_SCSSPHP_IMPORT_ONCE, $importPath], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@import') &&
+ $this->valueList($importPath) &&
+ $this->end()
+ ) {
+ $this->append([Type::T_IMPORT, $importPath], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@import') &&
+ $this->url($importPath) &&
+ $this->end()
+ ) {
+ $this->append([Type::T_IMPORT, $importPath], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@extend') &&
+ $this->selectors($selectors) &&
+ $this->end()
+ ) {
+ // check for '!flag'
+ $optional = $this->stripOptionalFlag($selectors);
+ $this->append([Type::T_EXTEND, $selectors, $optional], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@function') &&
+ $this->keyword($fnName) &&
+ $this->argumentDef($args) &&
+ $this->literal('{')
+ ) {
+ $func = $this->pushSpecialBlock(Type::T_FUNCTION, $s);
+ $func->name = $fnName;
+ $func->args = $args;
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@break') && $this->end()) {
+ $this->append([Type::T_BREAK], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@continue') && $this->end()) {
+ $this->append([Type::T_CONTINUE], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+
+ if ($this->literal('@return') && ($this->valueList($retVal) || true) && $this->end()) {
+ $this->append([Type::T_RETURN, isset($retVal) ? $retVal : [Type::T_NULL]], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@each') &&
+ $this->genericList($varNames, 'variable', ',', false) &&
+ $this->literal('in') &&
+ $this->valueList($list) &&
+ $this->literal('{')
+ ) {
+ $each = $this->pushSpecialBlock(Type::T_EACH, $s);
+
+ foreach ($varNames[2] as $varName) {
+ $each->vars[] = $varName[1];
+ }
+
+ $each->list = $list;
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@while') &&
+ $this->expression($cond) &&
+ $this->literal('{')
+ ) {
+ $while = $this->pushSpecialBlock(Type::T_WHILE, $s);
+ $while->cond = $cond;
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@for') &&
+ $this->variable($varName) &&
+ $this->literal('from') &&
+ $this->expression($start) &&
+ ($this->literal('through') ||
+ ($forUntil = true && $this->literal('to'))) &&
+ $this->expression($end) &&
+ $this->literal('{')
+ ) {
+ $for = $this->pushSpecialBlock(Type::T_FOR, $s);
+ $for->var = $varName[1];
+ $for->start = $start;
+ $for->end = $end;
+ $for->until = isset($forUntil);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@if') && $this->valueList($cond) && $this->literal('{')) {
+ $if = $this->pushSpecialBlock(Type::T_IF, $s);
+ $if->cond = $cond;
+ $if->cases = [];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@debug') &&
+ $this->valueList($value) &&
+ $this->end()
+ ) {
+ $this->append([Type::T_DEBUG, $value], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@warn') &&
+ $this->valueList($value) &&
+ $this->end()
+ ) {
+ $this->append([Type::T_WARN, $value], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@error') &&
+ $this->valueList($value) &&
+ $this->end()
+ ) {
+ $this->append([Type::T_ERROR, $value], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('@content') && $this->end()) {
+ $this->append([Type::T_MIXIN_CONTENT], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ $last = $this->last();
+
+ if (isset($last) && $last[0] === Type::T_IF) {
+ list(, $if) = $last;
+
+ if ($this->literal('@else')) {
+ if ($this->literal('{')) {
+ $else = $this->pushSpecialBlock(Type::T_ELSE, $s);
+ } elseif ($this->literal('if') && $this->valueList($cond) && $this->literal('{')) {
+ $else = $this->pushSpecialBlock(Type::T_ELSEIF, $s);
+ $else->cond = $cond;
+ }
+
+ if (isset($else)) {
+ $else->dontAppend = true;
+ $if->cases[] = $else;
+
+ return true;
+ }
+ }
+
+ $this->seek($s);
+ }
+
+ // only retain the first @charset directive encountered
+ if ($this->literal('@charset') &&
+ $this->valueList($charset) &&
+ $this->end()
+ ) {
+ if (! isset($this->charset)) {
+ $statement = [Type::T_CHARSET, $charset];
+
+ list($line, $column) = $this->getSourcePosition($s);
+
+ $statement[static::SOURCE_LINE] = $line;
+ $statement[static::SOURCE_COLUMN] = $column;
+ $statement[static::SOURCE_INDEX] = $this->sourceIndex;
+
+ $this->charset = $statement;
+ }
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ // doesn't match built in directive, do generic one
+ if ($this->literal('@', false) &&
+ $this->keyword($dirName) &&
+ ($this->variable($dirValue) || $this->openString('{', $dirValue) || true) &&
+ $this->literal('{')
+ ) {
+ if ($dirName === 'media') {
+ $directive = $this->pushSpecialBlock(Type::T_MEDIA, $s);
+ } else {
+ $directive = $this->pushSpecialBlock(Type::T_DIRECTIVE, $s);
+ $directive->name = $dirName;
+ }
+
+ if (isset($dirValue)) {
+ $directive->value = $dirValue;
+ }
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ return false;
+ }
+
+ // property shortcut
+ // captures most properties before having to parse a selector
+ if ($this->keyword($name, false) &&
+ $this->literal(': ') &&
+ $this->valueList($value) &&
+ $this->end()
+ ) {
+ $name = [Type::T_STRING, '', [$name]];
+ $this->append([Type::T_ASSIGN, $name, $value], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ // variable assigns
+ if ($this->variable($name) &&
+ $this->literal(':') &&
+ $this->valueList($value) &&
+ $this->end()
+ ) {
+ // check for '!flag'
+ $assignmentFlags = $this->stripAssignmentFlags($value);
+ $this->append([Type::T_ASSIGN, $name, $value, $assignmentFlags], $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ // misc
+ if ($this->literal('-->')) {
+ return true;
+ }
+
+ // opening css block
+ if ($this->selectors($selectors) && $this->literal('{')) {
+ $this->pushBlock($selectors, $s);
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ // property assign, or nested assign
+ if ($this->propertyName($name) && $this->literal(':')) {
+ $foundSomething = false;
+
+ if ($this->valueList($value)) {
+ $this->append([Type::T_ASSIGN, $name, $value], $s);
+ $foundSomething = true;
+ }
+
+ if ($this->literal('{')) {
+ $propBlock = $this->pushSpecialBlock(Type::T_NESTED_PROPERTY, $s);
+ $propBlock->prefix = $name;
+ $foundSomething = true;
+ } elseif ($foundSomething) {
+ $foundSomething = $this->end();
+ }
+
+ if ($foundSomething) {
+ return true;
+ }
+ }
+
+ $this->seek($s);
+
+ // closing a block
+ if ($this->literal('}')) {
+ $block = $this->popBlock();
+
+ if (isset($block->type) && $block->type === Type::T_INCLUDE) {
+ $include = $block->child;
+ unset($block->child);
+ $include[3] = $block;
+ $this->append($include, $s);
+ } elseif (empty($block->dontAppend)) {
+ $type = isset($block->type) ? $block->type : Type::T_BLOCK;
+ $this->append([$type, $block], $s);
+ }
+
+ return true;
+ }
+
+ // extra stuff
+ if ($this->literal(';') ||
+ $this->literal('<!--')
+ ) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Push block onto parse tree
+ *
+ * @param array $selectors
+ * @param integer $pos
+ *
+ * @return \Leafo\ScssPhp\Block
+ */
+ protected function pushBlock($selectors, $pos = 0)
+ {
+ list($line, $column) = $this->getSourcePosition($pos);
+
+ $b = new Block;
+ $b->sourceName = $this->sourceName;
+ $b->sourceLine = $line;
+ $b->sourceColumn = $column;
+ $b->sourceIndex = $this->sourceIndex;
+ $b->selectors = $selectors;
+ $b->comments = [];
+ $b->parent = $this->env;
+
+ if (! $this->env) {
+ $b->children = [];
+ } elseif (empty($this->env->children)) {
+ $this->env->children = $this->env->comments;
+ $b->children = [];
+ $this->env->comments = [];
+ } else {
+ $b->children = $this->env->comments;
+ $this->env->comments = [];
+ }
+
+ $this->env = $b;
+
+ return $b;
+ }
+
+ /**
+ * Push special (named) block onto parse tree
+ *
+ * @param string $type
+ * @param integer $pos
+ *
+ * @return \Leafo\ScssPhp\Block
+ */
+ protected function pushSpecialBlock($type, $pos)
+ {
+ $block = $this->pushBlock(null, $pos);
+ $block->type = $type;
+
+ return $block;
+ }
+
+ /**
+ * Pop scope and return last block
+ *
+ * @return \Leafo\ScssPhp\Block
+ *
+ * @throws \Exception
+ */
+ protected function popBlock()
+ {
+ $block = $this->env;
+
+ if (empty($block->parent)) {
+ $this->throwParseError('unexpected }');
+ }
+
+ $this->env = $block->parent;
+ unset($block->parent);
+
+ $comments = $block->comments;
+ if (count($comments)) {
+ $this->env->comments = $comments;
+ unset($block->comments);
+ }
+
+ return $block;
+ }
+
+ /**
+ * Peek input stream
+ *
+ * @param string $regex
+ * @param array $out
+ * @param integer $from
+ *
+ * @return integer
+ */
+ protected function peek($regex, &$out, $from = null)
+ {
+ if (! isset($from)) {
+ $from = $this->count;
+ }
+
+ $r = '/' . $regex . '/' . $this->patternModifiers;
+ $result = preg_match($r, $this->buffer, $out, null, $from);
+
+ return $result;
+ }
+
+ /**
+ * Seek to position in input stream (or return current position in input stream)
+ *
+ * @param integer $where
+ *
+ * @return integer
+ */
+ protected function seek($where = null)
+ {
+ if ($where === null) {
+ return $this->count;
+ }
+
+ $this->count = $where;
+
+ return true;
+ }
+
+ /**
+ * Match string looking for either ending delim, escape, or string interpolation
+ *
+ * {@internal This is a workaround for preg_match's 250K string match limit. }}
+ *
+ * @param array $m Matches (passed by reference)
+ * @param string $delim Delimeter
+ *
+ * @return boolean True if match; false otherwise
+ */
+ protected function matchString(&$m, $delim)
+ {
+ $token = null;
+
+ $end = strlen($this->buffer);
+
+ // look for either ending delim, escape, or string interpolation
+ foreach (['#{', '\\', $delim] as $lookahead) {
+ $pos = strpos($this->buffer, $lookahead, $this->count);
+
+ if ($pos !== false && $pos < $end) {
+ $end = $pos;
+ $token = $lookahead;
+ }
+ }
+
+ if (! isset($token)) {
+ return false;
+ }
+
+ $match = substr($this->buffer, $this->count, $end - $this->count);
+ $m = [
+ $match . $token,
+ $match,
+ $token
+ ];
+ $this->count = $end + strlen($token);
+
+ return true;
+ }
+
+ /**
+ * Try to match something on head of buffer
+ *
+ * @param string $regex
+ * @param array $out
+ * @param boolean $eatWhitespace
+ *
+ * @return boolean
+ */
+ protected function match($regex, &$out, $eatWhitespace = null)
+ {
+ if (! isset($eatWhitespace)) {
+ $eatWhitespace = $this->eatWhiteDefault;
+ }
+
+ $r = '/' . $regex . '/' . $this->patternModifiers;
+
+ if (preg_match($r, $this->buffer, $out, null, $this->count)) {
+ $this->count += strlen($out[0]);
+
+ if ($eatWhitespace) {
+ $this->whitespace();
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Match literal string
+ *
+ * @param string $what
+ * @param boolean $eatWhitespace
+ *
+ * @return boolean
+ */
+ protected function literal($what, $eatWhitespace = null)
+ {
+ if (! isset($eatWhitespace)) {
+ $eatWhitespace = $this->eatWhiteDefault;
+ }
+
+ $len = strlen($what);
+
+ if (strcasecmp(substr($this->buffer, $this->count, $len), $what) === 0) {
+ $this->count += $len;
+
+ if ($eatWhitespace) {
+ $this->whitespace();
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Match some whitespace
+ *
+ * @return boolean
+ */
+ protected function whitespace()
+ {
+ $gotWhite = false;
+
+ while (preg_match(static::$whitePattern, $this->buffer, $m, null, $this->count)) {
+ if (isset($m[1]) && empty($this->commentsSeen[$this->count])) {
+ $this->appendComment([Type::T_COMMENT, $m[1]]);
+
+ $this->commentsSeen[$this->count] = true;
+ }
+
+ $this->count += strlen($m[0]);
+ $gotWhite = true;
+ }
+
+ return $gotWhite;
+ }
+
+ /**
+ * Append comment to current block
+ *
+ * @param array $comment
+ */
+ protected function appendComment($comment)
+ {
+ $comment[1] = substr(preg_replace(['/^\s+/m', '/^(.)/m'], ['', ' \1'], $comment[1]), 1);
+
+ $this->env->comments[] = $comment;
+ }
+
+ /**
+ * Append statement to current block
+ *
+ * @param array $statement
+ * @param integer $pos
+ */
+ protected function append($statement, $pos = null)
+ {
+ if ($pos !== null) {
+ list($line, $column) = $this->getSourcePosition($pos);
+
+ $statement[static::SOURCE_LINE] = $line;
+ $statement[static::SOURCE_COLUMN] = $column;
+ $statement[static::SOURCE_INDEX] = $this->sourceIndex;
+ }
+
+ $this->env->children[] = $statement;
+
+ $comments = $this->env->comments;
+
+ if (count($comments)) {
+ $this->env->children = array_merge($this->env->children, $comments);
+ $this->env->comments = [];
+ }
+ }
+
+ /**
+ * Returns last child was appended
+ *
+ * @return array|null
+ */
+ protected function last()
+ {
+ $i = count($this->env->children) - 1;
+
+ if (isset($this->env->children[$i])) {
+ return $this->env->children[$i];
+ }
+ }
+
+ /**
+ * Parse media query list
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function mediaQueryList(&$out)
+ {
+ return $this->genericList($out, 'mediaQuery', ',', false);
+ }
+
+ /**
+ * Parse media query
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function mediaQuery(&$out)
+ {
+ $expressions = null;
+ $parts = [];
+
+ if (($this->literal('only') && ($only = true) || $this->literal('not') && ($not = true) || true) &&
+ $this->mixedKeyword($mediaType)
+ ) {
+ $prop = [Type::T_MEDIA_TYPE];
+
+ if (isset($only)) {
+ $prop[] = [Type::T_KEYWORD, 'only'];
+ }
+
+ if (isset($not)) {
+ $prop[] = [Type::T_KEYWORD, 'not'];
+ }
+
+ $media = [Type::T_LIST, '', []];
+
+ foreach ((array) $mediaType as $type) {
+ if (is_array($type)) {
+ $media[2][] = $type;
+ } else {
+ $media[2][] = [Type::T_KEYWORD, $type];
+ }
+ }
+
+ $prop[] = $media;
+ $parts[] = $prop;
+ }
+
+ if (empty($parts) || $this->literal('and')) {
+ $this->genericList($expressions, 'mediaExpression', 'and', false);
+
+ if (is_array($expressions)) {
+ $parts = array_merge($parts, $expressions[2]);
+ }
+ }
+
+ $out = $parts;
+
+ return true;
+ }
+
+ /**
+ * Parse media expression
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function mediaExpression(&$out)
+ {
+ $s = $this->seek();
+ $value = null;
+
+ if ($this->literal('(') &&
+ $this->expression($feature) &&
+ ($this->literal(':') && $this->expression($value) || true) &&
+ $this->literal(')')
+ ) {
+ $out = [Type::T_MEDIA_EXPRESSION, $feature];
+
+ if ($value) {
+ $out[] = $value;
+ }
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ return false;
+ }
+
+ /**
+ * Parse argument values
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function argValues(&$out)
+ {
+ if ($this->genericList($list, 'argValue', ',', false)) {
+ $out = $list[2];
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse argument value
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function argValue(&$out)
+ {
+ $s = $this->seek();
+
+ $keyword = null;
+
+ if (! $this->variable($keyword) || ! $this->literal(':')) {
+ $this->seek($s);
+ $keyword = null;
+ }
+
+ if ($this->genericList($value, 'expression')) {
+ $out = [$keyword, $value, false];
+ $s = $this->seek();
+
+ if ($this->literal('...')) {
+ $out[2] = true;
+ } else {
+ $this->seek($s);
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse comma separated value list
+ *
+ * @param string $out
+ *
+ * @return boolean
+ */
+ protected function valueList(&$out)
+ {
+ return $this->genericList($out, 'spaceList', ',');
+ }
+
+ /**
+ * Parse space separated value list
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function spaceList(&$out)
+ {
+ return $this->genericList($out, 'expression');
+ }
+
+ /**
+ * Parse generic list
+ *
+ * @param array $out
+ * @param callable $parseItem
+ * @param string $delim
+ * @param boolean $flatten
+ *
+ * @return boolean
+ */
+ protected function genericList(&$out, $parseItem, $delim = '', $flatten = true)
+ {
+ $s = $this->seek();
+ $items = [];
+
+ while ($this->$parseItem($value)) {
+ $items[] = $value;
+
+ if ($delim) {
+ if (! $this->literal($delim)) {
+ break;
+ }
+ }
+ }
+
+ if (count($items) === 0) {
+ $this->seek($s);
+
+ return false;
+ }
+
+ if ($flatten && count($items) === 1) {
+ $out = $items[0];
+ } else {
+ $out = [Type::T_LIST, $delim, $items];
+ }
+
+ return true;
+ }
+
+ /**
+ * Parse expression
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function expression(&$out)
+ {
+ $s = $this->seek();
+
+ if ($this->literal('(')) {
+ if ($this->literal(')')) {
+ $out = [Type::T_LIST, '', []];
+
+ return true;
+ }
+
+ if ($this->valueList($out) && $this->literal(')') && $out[0] === Type::T_LIST) {
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->map($out)) {
+ return true;
+ }
+
+ $this->seek($s);
+ }
+
+ if ($this->value($lhs)) {
+ $out = $this->expHelper($lhs, 0);
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse left-hand side of subexpression
+ *
+ * @param array $lhs
+ * @param integer $minP
+ *
+ * @return array
+ */
+ protected function expHelper($lhs, $minP)
+ {
+ $operators = static::$operatorPattern;
+
+ $ss = $this->seek();
+ $whiteBefore = isset($this->buffer[$this->count - 1]) &&
+ ctype_space($this->buffer[$this->count - 1]);
+
+ while ($this->match($operators, $m, false) && static::$precedence[$m[1]] >= $minP) {
+ $whiteAfter = isset($this->buffer[$this->count]) &&
+ ctype_space($this->buffer[$this->count]);
+ $varAfter = isset($this->buffer[$this->count]) &&
+ $this->buffer[$this->count] === '$';
+
+ $this->whitespace();
+
+ $op = $m[1];
+
+ // don't turn negative numbers into expressions
+ if ($op === '-' && $whiteBefore && ! $whiteAfter && ! $varAfter) {
+ break;
+ }
+
+ if (! $this->value($rhs)) {
+ break;
+ }
+
+ // peek and see if rhs belongs to next operator
+ if ($this->peek($operators, $next) && static::$precedence[$next[1]] > static::$precedence[$op]) {
+ $rhs = $this->expHelper($rhs, static::$precedence[$next[1]]);
+ }
+
+ $lhs = [Type::T_EXPRESSION, $op, $lhs, $rhs, $this->inParens, $whiteBefore, $whiteAfter];
+ $ss = $this->seek();
+ $whiteBefore = isset($this->buffer[$this->count - 1]) &&
+ ctype_space($this->buffer[$this->count - 1]);
+ }
+
+ $this->seek($ss);
+
+ return $lhs;
+ }
+
+ /**
+ * Parse value
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function value(&$out)
+ {
+ $s = $this->seek();
+
+ if ($this->literal('url(') && $this->match('data:([a-z]+)\/([a-z0-9.+-]+);base64,', $m, false)) {
+ $len = strspn($this->buffer, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwyxz0123456789+/=', $this->count);
+
+ $this->count += $len;
+
+ if ($this->literal(')')) {
+ $content = substr($this->buffer, $s, $this->count - $s);
+ $out = [Type::T_KEYWORD, $content];
+
+ return true;
+ }
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('not', false) && $this->whitespace() && $this->value($inner)) {
+ $out = [Type::T_UNARY, 'not', $inner, $this->inParens];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('not', false) && $this->parenValue($inner)) {
+ $out = [Type::T_UNARY, 'not', $inner, $this->inParens];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->literal('+') && $this->value($inner)) {
+ $out = [Type::T_UNARY, '+', $inner, $this->inParens];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ // negation
+ if ($this->literal('-', false) &&
+ ($this->variable($inner) ||
+ $this->unit($inner) ||
+ $this->parenValue($inner))
+ ) {
+ $out = [Type::T_UNARY, '-', $inner, $this->inParens];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ if ($this->parenValue($out) ||
+ $this->interpolation($out) ||
+ $this->variable($out) ||
+ $this->color($out) ||
+ $this->unit($out) ||
+ $this->string($out) ||
+ $this->func($out) ||
+ $this->progid($out)
+ ) {
+ return true;
+ }
+
+ if ($this->keyword($keyword)) {
+ if ($keyword === 'null') {
+ $out = [Type::T_NULL];
+ } else {
+ $out = [Type::T_KEYWORD, $keyword];
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse parenthesized value
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function parenValue(&$out)
+ {
+ $s = $this->seek();
+
+ $inParens = $this->inParens;
+
+ if ($this->literal('(')) {
+ if ($this->literal(')')) {
+ $out = [Type::T_LIST, '', []];
+
+ return true;
+ }
+
+ $this->inParens = true;
+
+ if ($this->expression($exp) && $this->literal(')')) {
+ $out = $exp;
+ $this->inParens = $inParens;
+
+ return true;
+ }
+ }
+
+ $this->inParens = $inParens;
+ $this->seek($s);
+
+ return false;
+ }
+
+ /**
+ * Parse "progid:"
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function progid(&$out)
+ {
+ $s = $this->seek();
+
+ if ($this->literal('progid:', false) &&
+ $this->openString('(', $fn) &&
+ $this->literal('(')
+ ) {
+ $this->openString(')', $args, '(');
+
+ if ($this->literal(')')) {
+ $out = [Type::T_STRING, '', [
+ 'progid:', $fn, '(', $args, ')'
+ ]];
+
+ return true;
+ }
+ }
+
+ $this->seek($s);
+
+ return false;
+ }
+
+ /**
+ * Parse function call
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function func(&$func)
+ {
+ $s = $this->seek();
+
+ if ($this->keyword($name, false) &&
+ $this->literal('(')
+ ) {
+ if ($name === 'alpha' && $this->argumentList($args)) {
+ $func = [Type::T_FUNCTION, $name, [Type::T_STRING, '', $args]];
+
+ return true;
+ }
+
+ if ($name !== 'expression' && ! preg_match('/^(-[a-z]+-)?calc$/', $name)) {
+ $ss = $this->seek();
+
+ if ($this->argValues($args) && $this->literal(')')) {
+ $func = [Type::T_FUNCTION_CALL, $name, $args];
+
+ return true;
+ }
+
+ $this->seek($ss);
+ }
+
+ if (($this->openString(')', $str, '(') || true) &&
+ $this->literal(')')
+ ) {
+ $args = [];
+
+ if (! empty($str)) {
+ $args[] = [null, [Type::T_STRING, '', [$str]]];
+ }
+
+ $func = [Type::T_FUNCTION_CALL, $name, $args];
+
+ return true;
+ }
+ }
+
+ $this->seek($s);
+
+ return false;
+ }
+
+ /**
+ * Parse function call argument list
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function argumentList(&$out)
+ {
+ $s = $this->seek();
+ $this->literal('(');
+
+ $args = [];
+
+ while ($this->keyword($var)) {
+ if ($this->literal('=') && $this->expression($exp)) {
+ $args[] = [Type::T_STRING, '', [$var . '=']];
+ $arg = $exp;
+ } else {
+ break;
+ }
+
+ $args[] = $arg;
+
+ if (! $this->literal(',')) {
+ break;
+ }
+
+ $args[] = [Type::T_STRING, '', [', ']];
+ }
+
+ if (! $this->literal(')') || ! count($args)) {
+ $this->seek($s);
+
+ return false;
+ }
+
+ $out = $args;
+
+ return true;
+ }
+
+ /**
+ * Parse mixin/function definition argument list
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function argumentDef(&$out)
+ {
+ $s = $this->seek();
+ $this->literal('(');
+
+ $args = [];
+
+ while ($this->variable($var)) {
+ $arg = [$var[1], null, false];
+
+ $ss = $this->seek();
+
+ if ($this->literal(':') && $this->genericList($defaultVal, 'expression')) {
+ $arg[1] = $defaultVal;
+ } else {
+ $this->seek($ss);
+ }
+
+ $ss = $this->seek();
+
+ if ($this->literal('...')) {
+ $sss = $this->seek();
+
+ if (! $this->literal(')')) {
+ $this->throwParseError('... has to be after the final argument');
+ }
+
+ $arg[2] = true;
+ $this->seek($sss);
+ } else {
+ $this->seek($ss);
+ }
+
+ $args[] = $arg;
+
+ if (! $this->literal(',')) {
+ break;
+ }
+ }
+
+ if (! $this->literal(')')) {
+ $this->seek($s);
+
+ return false;
+ }
+
+ $out = $args;
+
+ return true;
+ }
+
+ /**
+ * Parse map
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function map(&$out)
+ {
+ $s = $this->seek();
+
+ if (! $this->literal('(')) {
+ return false;
+ }
+
+ $keys = [];
+ $values = [];
+
+ while ($this->genericList($key, 'expression') && $this->literal(':') &&
+ $this->genericList($value, 'expression')
+ ) {
+ $keys[] = $key;
+ $values[] = $value;
+
+ if (! $this->literal(',')) {
+ break;
+ }
+ }
+
+ if (! count($keys) || ! $this->literal(')')) {
+ $this->seek($s);
+
+ return false;
+ }
+
+ $out = [Type::T_MAP, $keys, $values];
+
+ return true;
+ }
+
+ /**
+ * Parse color
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function color(&$out)
+ {
+ $color = [Type::T_COLOR];
+
+ if ($this->match('(#([0-9a-f]{6})|#([0-9a-f]{3}))', $m)) {
+ if (isset($m[3])) {
+ $num = hexdec($m[3]);
+
+ foreach ([3, 2, 1] as $i) {
+ $t = $num & 0xf;
+ $color[$i] = $t << 4 | $t;
+ $num >>= 4;
+ }
+ } else {
+ $num = hexdec($m[2]);
+
+ foreach ([3, 2, 1] as $i) {
+ $color[$i] = $num & 0xff;
+ $num >>= 8;
+ }
+ }
+
+ $out = $color;
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse number with unit
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function unit(&$unit)
+ {
+ if ($this->match('([0-9]*(\.)?[0-9]+)([%a-zA-Z]+)?', $m)) {
+ $unit = new Node\Number($m[1], empty($m[3]) ? '' : $m[3]);
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse string
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function string(&$out)
+ {
+ $s = $this->seek();
+
+ if ($this->literal('"', false)) {
+ $delim = '"';
+ } elseif ($this->literal("'", false)) {
+ $delim = "'";
+ } else {
+ return false;
+ }
+
+ $content = [];
+ $oldWhite = $this->eatWhiteDefault;
+ $this->eatWhiteDefault = false;
+ $hasInterpolation = false;
+
+ while ($this->matchString($m, $delim)) {
+ if ($m[1] !== '') {
+ $content[] = $m[1];
+ }
+
+ if ($m[2] === '#{') {
+ $this->count -= strlen($m[2]);
+
+ if ($this->interpolation($inter, false)) {
+ $content[] = $inter;
+ $hasInterpolation = true;
+ } else {
+ $this->count += strlen($m[2]);
+ $content[] = '#{'; // ignore it
+ }
+ } elseif ($m[2] === '\\') {
+ if ($this->literal('"', false)) {
+ $content[] = $m[2] . '"';
+ } elseif ($this->literal("'", false)) {
+ $content[] = $m[2] . "'";
+ } else {
+ $content[] = $m[2];
+ }
+ } else {
+ $this->count -= strlen($delim);
+ break; // delim
+ }
+ }
+
+ $this->eatWhiteDefault = $oldWhite;
+
+ if ($this->literal($delim)) {
+ if ($hasInterpolation) {
+ $delim = '"';
+
+ foreach ($content as &$string) {
+ if ($string === "\\'") {
+ $string = "'";
+ } elseif ($string === '\\"') {
+ $string = '"';
+ }
+ }
+ }
+
+ $out = [Type::T_STRING, $delim, $content];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ return false;
+ }
+
+ /**
+ * Parse keyword or interpolation
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function mixedKeyword(&$out)
+ {
+ $parts = [];
+
+ $oldWhite = $this->eatWhiteDefault;
+ $this->eatWhiteDefault = false;
+
+ for (;;) {
+ if ($this->keyword($key)) {
+ $parts[] = $key;
+ continue;
+ }
+
+ if ($this->interpolation($inter)) {
+ $parts[] = $inter;
+ continue;
+ }
+
+ break;
+ }
+
+ $this->eatWhiteDefault = $oldWhite;
+
+ if (count($parts) === 0) {
+ return false;
+ }
+
+ if ($this->eatWhiteDefault) {
+ $this->whitespace();
+ }
+
+ $out = $parts;
+
+ return true;
+ }
+
+ /**
+ * Parse an unbounded string stopped by $end
+ *
+ * @param string $end
+ * @param array $out
+ * @param string $nestingOpen
+ *
+ * @return boolean
+ */
+ protected function openString($end, &$out, $nestingOpen = null)
+ {
+ $oldWhite = $this->eatWhiteDefault;
+ $this->eatWhiteDefault = false;
+
+ $patt = '(.*?)([\'"]|#\{|' . $this->pregQuote($end) . '|' . static::$commentPattern . ')';
+
+ $nestingLevel = 0;
+
+ $content = [];
+
+ while ($this->match($patt, $m, false)) {
+ if (isset($m[1]) && $m[1] !== '') {
+ $content[] = $m[1];
+
+ if ($nestingOpen) {
+ $nestingLevel += substr_count($m[1], $nestingOpen);
+ }
+ }
+
+ $tok = $m[2];
+
+ $this->count-= strlen($tok);
+
+ if ($tok === $end && ! $nestingLevel--) {
+ break;
+ }
+
+ if (($tok === "'" || $tok === '"') && $this->string($str)) {
+ $content[] = $str;
+ continue;
+ }
+
+ if ($tok === '#{' && $this->interpolation($inter)) {
+ $content[] = $inter;
+ continue;
+ }
+
+ $content[] = $tok;
+ $this->count+= strlen($tok);
+ }
+
+ $this->eatWhiteDefault = $oldWhite;
+
+ if (count($content) === 0) {
+ return false;
+ }
+
+ // trim the end
+ if (is_string(end($content))) {
+ $content[count($content) - 1] = rtrim(end($content));
+ }
+
+ $out = [Type::T_STRING, '', $content];
+
+ return true;
+ }
+
+ /**
+ * Parser interpolation
+ *
+ * @param array $out
+ * @param boolean $lookWhite save information about whitespace before and after
+ *
+ * @return boolean
+ */
+ protected function interpolation(&$out, $lookWhite = true)
+ {
+ $oldWhite = $this->eatWhiteDefault;
+ $this->eatWhiteDefault = true;
+
+ $s = $this->seek();
+
+ if ($this->literal('#{') && $this->valueList($value) && $this->literal('}', false)) {
+ if ($lookWhite) {
+ $left = preg_match('/\s/', $this->buffer[$s - 1]) ? ' ' : '';
+ $right = preg_match('/\s/', $this->buffer[$this->count]) ? ' ': '';
+ } else {
+ $left = $right = false;
+ }
+
+ $out = [Type::T_INTERPOLATE, $value, $left, $right];
+ $this->eatWhiteDefault = $oldWhite;
+
+ if ($this->eatWhiteDefault) {
+ $this->whitespace();
+ }
+
+ return true;
+ }
+
+ $this->seek($s);
+ $this->eatWhiteDefault = $oldWhite;
+
+ return false;
+ }
+
+ /**
+ * Parse property name (as an array of parts or a string)
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function propertyName(&$out)
+ {
+ $parts = [];
+
+ $oldWhite = $this->eatWhiteDefault;
+ $this->eatWhiteDefault = false;
+
+ for (;;) {
+ if ($this->interpolation($inter)) {
+ $parts[] = $inter;
+ continue;
+ }
+
+ if ($this->keyword($text)) {
+ $parts[] = $text;
+ continue;
+ }
+
+ if (count($parts) === 0 && $this->match('[:.#]', $m, false)) {
+ // css hacks
+ $parts[] = $m[0];
+ continue;
+ }
+
+ break;
+ }
+
+ $this->eatWhiteDefault = $oldWhite;
+
+ if (count($parts) === 0) {
+ return false;
+ }
+
+ // match comment hack
+ if (preg_match(
+ static::$whitePattern,
+ $this->buffer,
+ $m,
+ null,
+ $this->count
+ )) {
+ if (! empty($m[0])) {
+ $parts[] = $m[0];
+ $this->count += strlen($m[0]);
+ }
+ }
+
+ $this->whitespace(); // get any extra whitespace
+
+ $out = [Type::T_STRING, '', $parts];
+
+ return true;
+ }
+
+ /**
+ * Parse comma separated selector list
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function selectors(&$out)
+ {
+ $s = $this->seek();
+ $selectors = [];
+
+ while ($this->selector($sel)) {
+ $selectors[] = $sel;
+
+ if (! $this->literal(',')) {
+ break;
+ }
+
+ while ($this->literal(',')) {
+ ; // ignore extra
+ }
+ }
+
+ if (count($selectors) === 0) {
+ $this->seek($s);
+
+ return false;
+ }
+
+ $out = $selectors;
+
+ return true;
+ }
+
+ /**
+ * Parse whitespace separated selector list
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function selector(&$out)
+ {
+ $selector = [];
+
+ for (;;) {
+ if ($this->match('[>+~]+', $m)) {
+ $selector[] = [$m[0]];
+ continue;
+ }
+
+ if ($this->selectorSingle($part)) {
+ $selector[] = $part;
+ $this->match('\s+', $m);
+ continue;
+ }
+
+ if ($this->match('\/[^\/]+\/', $m)) {
+ $selector[] = [$m[0]];
+ continue;
+ }
+
+ break;
+ }
+
+ if (count($selector) === 0) {
+ return false;
+ }
+
+ $out = $selector;
+ return true;
+ }
+
+ /**
+ * Parse the parts that make up a selector
+ *
+ * {@internal
+ * div[yes=no]#something.hello.world:nth-child(-2n+1)%placeholder
+ * }}
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function selectorSingle(&$out)
+ {
+ $oldWhite = $this->eatWhiteDefault;
+ $this->eatWhiteDefault = false;
+
+ $parts = [];
+
+ if ($this->literal('*', false)) {
+ $parts[] = '*';
+ }
+
+ for (;;) {
+ // see if we can stop early
+ if ($this->match('\s*[{,]', $m)) {
+ $this->count--;
+ break;
+ }
+
+ $s = $this->seek();
+
+ // self
+ if ($this->literal('&', false)) {
+ $parts[] = Compiler::$selfSelector;
+ continue;
+ }
+
+ if ($this->literal('.', false)) {
+ $parts[] = '.';
+ continue;
+ }
+
+ if ($this->literal('|', false)) {
+ $parts[] = '|';
+ continue;
+ }
+
+ if ($this->match('\\\\\S', $m)) {
+ $parts[] = $m[0];
+ continue;
+ }
+
+ // for keyframes
+ if ($this->unit($unit)) {
+ $parts[] = $unit;
+ continue;
+ }
+
+ if ($this->keyword($name)) {
+ $parts[] = $name;
+ continue;
+ }
+
+ if ($this->interpolation($inter)) {
+ $parts[] = $inter;
+ continue;
+ }
+
+ if ($this->literal('%', false) && $this->placeholder($placeholder)) {
+ $parts[] = '%';
+ $parts[] = $placeholder;
+ continue;
+ }
+
+ if ($this->literal('#', false)) {
+ $parts[] = '#';
+ continue;
+ }
+
+ // a pseudo selector
+ if ($this->match('::?', $m) && $this->mixedKeyword($nameParts)) {
+ $parts[] = $m[0];
+
+ foreach ($nameParts as $sub) {
+ $parts[] = $sub;
+ }
+
+ $ss = $this->seek();
+
+ if ($this->literal('(') &&
+ ($this->openString(')', $str, '(') || true) &&
+ $this->literal(')')
+ ) {
+ $parts[] = '(';
+
+ if (! empty($str)) {
+ $parts[] = $str;
+ }
+
+ $parts[] = ')';
+ } else {
+ $this->seek($ss);
+ }
+
+ continue;
+ }
+
+ $this->seek($s);
+
+ // attribute selector
+ if ($this->literal('[') &&
+ ($this->openString(']', $str, '[') || true) &&
+ $this->literal(']')
+ ) {
+ $parts[] = '[';
+
+ if (! empty($str)) {
+ $parts[] = $str;
+ }
+
+ $parts[] = ']';
+
+ continue;
+ }
+
+ $this->seek($s);
+
+ break;
+ }
+
+ $this->eatWhiteDefault = $oldWhite;
+
+ if (count($parts) === 0) {
+ return false;
+ }
+
+ $out = $parts;
+
+ return true;
+ }
+
+ /**
+ * Parse a variable
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function variable(&$out)
+ {
+ $s = $this->seek();
+
+ if ($this->literal('$', false) && $this->keyword($name)) {
+ $out = [Type::T_VARIABLE, $name];
+
+ return true;
+ }
+
+ $this->seek($s);
+
+ return false;
+ }
+
+ /**
+ * Parse a keyword
+ *
+ * @param string $word
+ * @param boolean $eatWhitespace
+ *
+ * @return boolean
+ */
+ protected function keyword(&$word, $eatWhitespace = null)
+ {
+ if ($this->match(
+ $this->utf8
+ ? '(([\pL\w_\-\*!"\']|[\\\\].)([\pL\w\-_"\']|[\\\\].)*)'
+ : '(([\w_\-\*!"\']|[\\\\].)([\w\-_"\']|[\\\\].)*)',
+ $m,
+ $eatWhitespace
+ )) {
+ $word = $m[1];
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse a placeholder
+ *
+ * @param string $placeholder
+ *
+ * @return boolean
+ */
+ protected function placeholder(&$placeholder)
+ {
+ if ($this->match(
+ $this->utf8
+ ? '([\pL\w\-_]+|#[{][$][\pL\w\-_]+[}])'
+ : '([\w\-_]+|#[{][$][\w\-_]+[}])',
+ $m
+ )) {
+ $placeholder = $m[1];
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Parse a url
+ *
+ * @param array $out
+ *
+ * @return boolean
+ */
+ protected function url(&$out)
+ {
+ if ($this->match('(url\(\s*(["\']?)([^)]+)\2\s*\))', $m)) {
+ $out = [Type::T_STRING, '', ['url(' . $m[2] . $m[3] . $m[2] . ')']];
+
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Consume an end of statement delimiter
+ *
+ * @return boolean
+ */
+ protected function end()
+ {
+ if ($this->literal(';')) {
+ return true;
+ }
+
+ if ($this->count === strlen($this->buffer) || $this->buffer[$this->count] === '}') {
+ // if there is end of file or a closing block next then we don't need a ;
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Strip assignment flag from the list
+ *
+ * @param array $value
+ *
+ * @return array
+ */
+ protected function stripAssignmentFlags(&$value)
+ {
+ $flags = [];
+
+ for ($token = &$value; $token[0] === Type::T_LIST && ($s = count($token[2])); $token = &$lastNode) {
+ $lastNode = &$token[2][$s - 1];
+
+ while ($lastNode[0] === Type::T_KEYWORD && in_array($lastNode[1], ['!default', '!global'])) {
+ array_pop($token[2]);
+
+ $node = end($token[2]);
+
+ $token = $this->flattenList($token);
+
+ $flags[] = $lastNode[1];
+
+ $lastNode = $node;
+ }
+ }
+
+ return $flags;
+ }
+
+ /**
+ * Strip optional flag from selector list
+ *
+ * @param array $selectors
+ *
+ * @return string
+ */
+ protected function stripOptionalFlag(&$selectors)
+ {
+ $optional = false;
+
+ $selector = end($selectors);
+ $part = end($selector);
+
+ if ($part === ['!optional']) {
+ array_pop($selectors[count($selectors) - 1]);
+
+ $optional = true;
+ }
+
+ return $optional;
+ }
+
+ /**
+ * Turn list of length 1 into value type
+ *
+ * @param array $value
+ *
+ * @return array
+ */
+ protected function flattenList($value)
+ {
+ if ($value[0] === Type::T_LIST && count($value[2]) === 1) {
+ return $this->flattenList($value[2][0]);
+ }
+
+ return $value;
+ }
+
+ /**
+ * @deprecated
+ *
+ * {@internal
+ * advance counter to next occurrence of $what
+ * $until - don't include $what in advance
+ * $allowNewline, if string, will be used as valid char set
+ * }}
+ */
+ protected function to($what, &$out, $until = false, $allowNewline = false)
+ {
+ if (is_string($allowNewline)) {
+ $validChars = $allowNewline;
+ } else {
+ $validChars = $allowNewline ? '.' : "[^\n]";
+ }
+
+ if (! $this->match('(' . $validChars . '*?)' . $this->pregQuote($what), $m, ! $until)) {
+ return false;
+ }
+
+ if ($until) {
+ $this->count -= strlen($what); // give back $what
+ }
+
+ $out = $m[1];
+
+ return true;
+ }
+
+ /**
+ * @deprecated
+ */
+ protected function show()
+ {
+ if ($this->peek("(.*?)(\n|$)", $m, $this->count)) {
+ return $m[1];
+ }
+
+ return '';
+ }
+
+ /**
+ * Quote regular expression
+ *
+ * @param string $what
+ *
+ * @return string
+ */
+ private function pregQuote($what)
+ {
+ return preg_quote($what, '/');
+ }
+
+ /**
+ * Extract line numbers from buffer
+ *
+ * @param string $buffer
+ */
+ private function extractLineNumbers($buffer)
+ {
+ $this->sourcePositions = [0 => 0];
+ $prev = 0;
+
+ while (($pos = strpos($buffer, "\n", $prev)) !== false) {
+ $this->sourcePositions[] = $pos;
+ $prev = $pos + 1;
+ }
+
+ $this->sourcePositions[] = strlen($buffer);
+
+ if (substr($buffer, -1) !== "\n") {
+ $this->sourcePositions[] = strlen($buffer) + 1;
+ }
+ }
+
+ /**
+ * Get source line number and column (given character position in the buffer)
+ *
+ * @param integer $pos
+ *
+ * @return integer
+ */
+ private function getSourcePosition($pos)
+ {
+ $low = 0;
+ $high = count($this->sourcePositions);
+
+ while ($low < $high) {
+ $mid = (int) (($high + $low) / 2);
+
+ if ($pos < $this->sourcePositions[$mid]) {
+ $high = $mid - 1;
+ continue;
+ }
+
+ if ($pos >= $this->sourcePositions[$mid + 1]) {
+ $low = $mid + 1;
+ continue;
+ }
+
+ return [$mid + 1, $pos - $this->sourcePositions[$mid]];
+ }
+
+ return [$low + 1, $pos - $this->sourcePositions[$low]];
+ }
+
+ /**
+ * Save internal encoding
+ */
+ private function saveEncoding()
+ {
+ if (version_compare(PHP_VERSION, '7.2.0') >= 0) {
+ return;
+ }
+
+ $iniDirective = 'mbstring' . '.func_overload'; // deprecated in PHP 7.2
+
+ if (ini_get($iniDirective) & 2) {
+ $this->encoding = mb_internal_encoding();
+
+ mb_internal_encoding('iso-8859-1');
+ }
+ }
+
+ /**
+ * Restore internal encoding
+ */
+ private function restoreEncoding()
+ {
+ if ($this->encoding) {
+ mb_internal_encoding($this->encoding);
+ }
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\SourceMap;
+
+/**
+ * Base64 VLQ Encoder
+ *
+ * {@internal Derivative of oyejorge/less.php's lib/SourceMap/Base64VLQ.php, relicensed with permission. }}
+ *
+ * @author Josh Schmidt <oyejorge@gmail.com>
+ * @author Nicolas FRANÇOIS <nicolas.francois@frog-labs.com>
+ */
+class Base64VLQEncoder
+{
+ /**
+ * Shift
+ *
+ * @var integer
+ */
+ private $shift = 5;
+
+ /**
+ * Mask
+ *
+ * @var integer
+ */
+ private $mask = 0x1F; // == (1 << shift) == 0b00011111
+
+ /**
+ * Continuation bit
+ *
+ * @var integer
+ */
+ private $continuationBit = 0x20; // == (mask - 1 ) == 0b00100000
+
+ /**
+ * Char to integer map
+ *
+ * @var array
+ */
+ private $charToIntMap = array(
+ 'A' => 0, 'B' => 1, 'C' => 2, 'D' => 3, 'E' => 4, 'F' => 5, 'G' => 6, 'H' => 7,
+ 'I' => 8, 'J' => 9, 'K' => 10, 'L' => 11, 'M' => 12, 'N' => 13, 'O' => 14, 'P' => 15,
+ 'Q' => 16, 'R' => 17, 'S' => 18, 'T' => 19, 'U' => 20, 'V' => 21, 'W' => 22, 'X' => 23,
+ 'Y' => 24, 'Z' => 25, 'a' => 26, 'b' => 27, 'c' => 28, 'd' => 29, 'e' => 30, 'f' => 31,
+ 'g' => 32, 'h' => 33, 'i' => 34, 'j' => 35, 'k' => 36, 'l' => 37, 'm' => 38, 'n' => 39,
+ 'o' => 40, 'p' => 41, 'q' => 42, 'r' => 43, 's' => 44, 't' => 45, 'u' => 46, 'v' => 47,
+ 'w' => 48, 'x' => 49, 'y' => 50, 'z' => 51, 0 => 52, 1 => 53, 2 => 54, 3 => 55,
+ 4 => 56, 5 => 57, 6 => 58, 7 => 59, 8 => 60, 9 => 61, '+' => 62, '/' => 63,
+ );
+
+ /**
+ * Integer to char map
+ *
+ * @var array
+ */
+ private $intToCharMap = array(
+ 0 => 'A', 1 => 'B', 2 => 'C', 3 => 'D', 4 => 'E', 5 => 'F', 6 => 'G', 7 => 'H',
+ 8 => 'I', 9 => 'J', 10 => 'K', 11 => 'L', 12 => 'M', 13 => 'N', 14 => 'O', 15 => 'P',
+ 16 => 'Q', 17 => 'R', 18 => 'S', 19 => 'T', 20 => 'U', 21 => 'V', 22 => 'W', 23 => 'X',
+ 24 => 'Y', 25 => 'Z', 26 => 'a', 27 => 'b', 28 => 'c', 29 => 'd', 30 => 'e', 31 => 'f',
+ 32 => 'g', 33 => 'h', 34 => 'i', 35 => 'j', 36 => 'k', 37 => 'l', 38 => 'm', 39 => 'n',
+ 40 => 'o', 41 => 'p', 42 => 'q', 43 => 'r', 44 => 's', 45 => 't', 46 => 'u', 47 => 'v',
+ 48 => 'w', 49 => 'x', 50 => 'y', 51 => 'z', 52 => '0', 53 => '1', 54 => '2', 55 => '3',
+ 56 => '4', 57 => '5', 58 => '6', 59 => '7', 60 => '8', 61 => '9', 62 => '+', 63 => '/',
+ );
+
+ /**
+ * Constructor
+ */
+ public function __construct()
+ {
+ // I leave it here for future reference
+ // foreach (str_split('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/') as $i => $char)
+ // {
+ // $this->charToIntMap[$char] = $i;
+ // $this->intToCharMap[$i] = $char;
+ // }
+ }
+
+ /**
+ * Convert from a two-complement value to a value where the sign bit is
+ * is placed in the least significant bit. For example, as decimals:
+ * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
+ * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
+ * We generate the value for 32 bit machines, hence -2147483648 becomes 1, not 4294967297,
+ * even on a 64 bit machine.
+ *
+ * @param string $aValue
+ */
+ public function toVLQSigned($aValue)
+ {
+ return 0xffffffff & ($aValue < 0 ? ((-$aValue) << 1) + 1 : ($aValue << 1) + 0);
+ }
+
+ /**
+ * Convert to a two-complement value from a value where the sign bit is
+ * is placed in the least significant bit. For example, as decimals:
+ * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1
+ * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2
+ * We assume that the value was generated with a 32 bit machine in mind.
+ * Hence
+ * 1 becomes -2147483648
+ * even on a 64 bit machine.
+ *
+ * @param integer $aValue
+ */
+ public function fromVLQSigned($aValue)
+ {
+ return $aValue & 1 ? $this->zeroFill(~$aValue + 2, 1) | (-1 - 0x7fffffff) : $this->zeroFill($aValue, 1);
+ }
+
+ /**
+ * Return the base 64 VLQ encoded value.
+ *
+ * @param string $aValue The value to encode
+ *
+ * @return string The encoded value
+ */
+ public function encode($aValue)
+ {
+ $encoded = '';
+ $vlq = $this->toVLQSigned($aValue);
+
+ do {
+ $digit = $vlq & $this->mask;
+ $vlq = $this->zeroFill($vlq, $this->shift);
+
+ if ($vlq > 0) {
+ $digit |= $this->continuationBit;
+ }
+
+ $encoded .= $this->base64Encode($digit);
+ } while ($vlq > 0);
+
+ return $encoded;
+ }
+
+ /**
+ * Return the value decoded from base 64 VLQ.
+ *
+ * @param string $encoded The encoded value to decode
+ *
+ * @return integer The decoded value
+ */
+ public function decode($encoded)
+ {
+ $vlq = 0;
+ $i = 0;
+
+ do {
+ $digit = $this->base64Decode($encoded[$i]);
+ $vlq |= ($digit & $this->mask) << ($i * $this->shift);
+ $i++;
+ } while ($digit & $this->continuationBit);
+
+ return $this->fromVLQSigned($vlq);
+ }
+
+ /**
+ * Right shift with zero fill.
+ *
+ * @param integer $a number to shift
+ * @param integer $b number of bits to shift
+ *
+ * @return integer
+ */
+ public function zeroFill($a, $b)
+ {
+ return ($a >= 0) ? ($a >> $b) : ($a >> $b) & (PHP_INT_MAX >> ($b - 1));
+ }
+
+ /**
+ * Encode single 6-bit digit as base64.
+ *
+ * @param integer $number
+ *
+ * @return string
+ *
+ * @throws \Exception If the number is invalid
+ */
+ public function base64Encode($number)
+ {
+ if ($number < 0 || $number > 63) {
+ throw new \Exception(sprintf('Invalid number "%s" given. Must be between 0 and 63.', $number));
+ }
+
+ return $this->intToCharMap[$number];
+ }
+
+ /**
+ * Decode single 6-bit digit from base64
+ *
+ * @param string $char
+ *
+ * @return integer
+ *
+ * @throws \Exception If the number is invalid
+ */
+ public function base64Decode($char)
+ {
+ if (! array_key_exists($char, $this->charToIntMap)) {
+ throw new \Exception(sprintf('Invalid base 64 digit "%s" given.', $char));
+ }
+
+ return $this->charToIntMap[$char];
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp\SourceMap;
+
+use Leafo\ScssPhp\Exception\CompilerException;
+
+/**
+ * Source Map Generator
+ *
+ * {@internal Derivative of oyejorge/less.php's lib/SourceMap/Generator.php, relicensed with permission. }}
+ *
+ * @author Josh Schmidt <oyejorge@gmail.com>
+ * @author Nicolas FRANÇOIS <nicolas.francois@frog-labs.com>
+ */
+class SourceMapGenerator
+{
+ /**
+ * What version of source map does the generator generate?
+ */
+ const VERSION = 3;
+
+ /**
+ * Array of default options
+ *
+ * @var array
+ */
+ protected $defaultOptions = array(
+ // an optional source root, useful for relocating source files
+ // on a server or removing repeated values in the 'sources' entry.
+ // This value is prepended to the individual entries in the 'source' field.
+ 'sourceRoot' => '',
+
+ // an optional name of the generated code that this source map is associated with.
+ 'sourceMapFilename' => null,
+
+ // url of the map
+ 'sourceMapURL' => null,
+
+ // absolute path to a file to write the map to
+ 'sourceMapWriteTo' => null,
+
+ // output source contents?
+ 'outputSourceFiles' => false,
+
+ // base path for filename normalization
+ 'sourceMapRootpath' => '',
+
+ // base path for filename normalization
+ 'sourceMapBasepath' => ''
+ );
+
+ /**
+ * The base64 VLQ encoder
+ *
+ * @var \Leafo\ScssPhp\SourceMap\Base64VLQEncoder
+ */
+ protected $encoder;
+
+ /**
+ * Array of mappings
+ *
+ * @var array
+ */
+ protected $mappings = array();
+
+ /**
+ * Array of contents map
+ *
+ * @var array
+ */
+ protected $contentsMap = array();
+
+ /**
+ * File to content map
+ *
+ * @var array
+ */
+ protected $sources = array();
+ protected $source_keys = array();
+
+ /**
+ * @var array
+ */
+ private $options;
+
+ public function __construct(array $options = [])
+ {
+ $this->options = array_merge($this->defaultOptions, $options);
+ $this->encoder = new Base64VLQEncoder();
+ }
+
+ /**
+ * Adds a mapping
+ *
+ * @param integer $generatedLine The line number in generated file
+ * @param integer $generatedColumn The column number in generated file
+ * @param integer $originalLine The line number in original file
+ * @param integer $originalColumn The column number in original file
+ * @param string $sourceFile The original source file
+ */
+ public function addMapping($generatedLine, $generatedColumn, $originalLine, $originalColumn, $sourceFile)
+ {
+ $this->mappings[] = array(
+ 'generated_line' => $generatedLine,
+ 'generated_column' => $generatedColumn,
+ 'original_line' => $originalLine,
+ 'original_column' => $originalColumn,
+ 'source_file' => $sourceFile
+ );
+
+ $this->sources[$sourceFile] = $sourceFile;
+ }
+
+ /**
+ * Saves the source map to a file
+ *
+ * @param string $file The absolute path to a file
+ * @param string $content The content to write
+ *
+ * @throws \Leafo\ScssPhp\Exception\CompilerException If the file could not be saved
+ */
+ public function saveMap($content)
+ {
+ $file = $this->options['sourceMapWriteTo'];
+ $dir = dirname($file);
+
+ // directory does not exist
+ if (! is_dir($dir)) {
+ // FIXME: create the dir automatically?
+ throw new CompilerException(sprintf('The directory "%s" does not exist. Cannot save the source map.', $dir));
+ }
+
+ // FIXME: proper saving, with dir write check!
+ if (file_put_contents($file, $content) === false) {
+ throw new CompilerException(sprintf('Cannot save the source map to "%s"', $file));
+ }
+
+ return $this->options['sourceMapURL'];
+ }
+
+ /**
+ * Generates the JSON source map
+ *
+ * @return string
+ *
+ * @see https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#
+ */
+ public function generateJson()
+ {
+ $sourceMap = array();
+ $mappings = $this->generateMappings();
+
+ // File version (always the first entry in the object) and must be a positive integer.
+ $sourceMap['version'] = self::VERSION;
+
+ // An optional name of the generated code that this source map is associated with.
+ $file = $this->options['sourceMapFilename'];
+
+ if ($file) {
+ $sourceMap['file'] = $file;
+ }
+
+ // An optional source root, useful for relocating source files on a server or removing repeated values in the
+ // 'sources' entry. This value is prepended to the individual entries in the 'source' field.
+ $root = $this->options['sourceRoot'];
+
+ if ($root) {
+ $sourceMap['sourceRoot'] = $root;
+ }
+
+ // A list of original sources used by the 'mappings' entry.
+ $sourceMap['sources'] = array();
+
+ foreach ($this->sources as $source_uri => $source_filename) {
+ $sourceMap['sources'][] = $this->normalizeFilename($source_filename);
+ }
+
+ // A list of symbol names used by the 'mappings' entry.
+ $sourceMap['names'] = array();
+
+ // A string with the encoded mapping data.
+ $sourceMap['mappings'] = $mappings;
+
+ if ($this->options['outputSourceFiles']) {
+ // An optional list of source content, useful when the 'source' can't be hosted.
+ // The contents are listed in the same order as the sources above.
+ // 'null' may be used if some original sources should be retrieved by name.
+ $sourceMap['sourcesContent'] = $this->getSourcesContent();
+ }
+
+ // less.js compat fixes
+ if (count($sourceMap['sources']) && empty($sourceMap['sourceRoot'])) {
+ unset($sourceMap['sourceRoot']);
+ }
+
+ return json_encode($sourceMap);
+ }
+
+ /**
+ * Returns the sources contents
+ *
+ * @return array|null
+ */
+ protected function getSourcesContent()
+ {
+ if (empty($this->sources)) {
+ return null;
+ }
+
+ $content = array();
+
+ foreach ($this->sources as $sourceFile) {
+ $content[] = file_get_contents($sourceFile);
+ }
+
+ return $content;
+ }
+
+ /**
+ * Generates the mappings string
+ *
+ * @return string
+ */
+ public function generateMappings()
+ {
+ if (! count($this->mappings)) {
+ return '';
+ }
+
+ $this->source_keys = array_flip(array_keys($this->sources));
+
+ // group mappings by generated line number.
+ $groupedMap = $groupedMapEncoded = array();
+
+ foreach ($this->mappings as $m) {
+ $groupedMap[$m['generated_line']][] = $m;
+ }
+
+ ksort($groupedMap);
+ $lastGeneratedLine = $lastOriginalIndex = $lastOriginalLine = $lastOriginalColumn = 0;
+
+ foreach ($groupedMap as $lineNumber => $line_map) {
+ while (++$lastGeneratedLine < $lineNumber) {
+ $groupedMapEncoded[] = ';';
+ }
+
+ $lineMapEncoded = array();
+ $lastGeneratedColumn = 0;
+
+ foreach ($line_map as $m) {
+ $mapEncoded = $this->encoder->encode($m['generated_column'] - $lastGeneratedColumn);
+ $lastGeneratedColumn = $m['generated_column'];
+
+ // find the index
+ if ($m['source_file']) {
+ $index = $this->findFileIndex($m['source_file']);
+
+ if ($index !== false) {
+ $mapEncoded .= $this->encoder->encode($index - $lastOriginalIndex);
+ $lastOriginalIndex = $index;
+ // lines are stored 0-based in SourceMap spec version 3
+ $mapEncoded .= $this->encoder->encode($m['original_line'] - 1 - $lastOriginalLine);
+ $lastOriginalLine = $m['original_line'] - 1;
+ $mapEncoded .= $this->encoder->encode($m['original_column'] - $lastOriginalColumn);
+ $lastOriginalColumn = $m['original_column'];
+ }
+ }
+
+ $lineMapEncoded[] = $mapEncoded;
+ }
+
+ $groupedMapEncoded[] = implode(',', $lineMapEncoded) . ';';
+ }
+
+ return rtrim(implode($groupedMapEncoded), ';');
+ }
+
+ /**
+ * Finds the index for the filename
+ *
+ * @param string $filename
+ *
+ * @return integer|false
+ */
+ protected function findFileIndex($filename)
+ {
+ return $this->source_keys[$filename];
+ }
+
+ protected function normalizeFilename($filename)
+ {
+ $filename = $this->fixWindowsPath($filename);
+ $rootpath = $this->options['sourceMapRootpath'];
+ $basePath = $this->options['sourceMapBasepath'];
+
+ // "Trim" the 'sourceMapBasepath' from the output filename.
+ if (strpos($filename, $basePath) === 0) {
+ $filename = substr($filename, strlen($basePath));
+ }
+
+ // Remove extra leading path separators.
+ if (strpos($filename, '\\') === 0 || strpos($filename, '/') === 0) {
+ $filename = substr($filename, 1);
+ }
+
+ return $rootpath . $filename;
+ }
+
+ /**
+ * Fix windows paths
+ *
+ * @param string $path
+ * @param boolean $addEndSlash
+ *
+ * @return string
+ */
+ public function fixWindowsPath($path, $addEndSlash = false)
+ {
+ $slash = ($addEndSlash) ? '/' : '';
+
+ if (! empty($path)) {
+ $path = str_replace('\\', '/', $path);
+ $path = rtrim($path, '/') . $slash;
+ }
+
+ return $path;
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+/**
+ * Block/node types
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Type
+{
+ const T_ASSIGN = 'assign';
+ const T_AT_ROOT = 'at-root';
+ const T_BLOCK = 'block';
+ const T_BREAK = 'break';
+ const T_CHARSET = 'charset';
+ const T_COLOR = 'color';
+ const T_COMMENT = 'comment';
+ const T_CONTINUE = 'continue';
+ const T_CONTROL = 'control';
+ const T_DEBUG = 'debug';
+ const T_DIRECTIVE = 'directive';
+ const T_EACH = 'each';
+ const T_ELSE = 'else';
+ const T_ELSEIF = 'elseif';
+ const T_ERROR = 'error';
+ const T_EXPRESSION = 'exp';
+ const T_EXTEND = 'extend';
+ const T_FOR = 'for';
+ const T_FUNCTION = 'function';
+ const T_FUNCTION_CALL = 'fncall';
+ const T_HSL = 'hsl';
+ const T_IF = 'if';
+ const T_IMPORT = 'import';
+ const T_INCLUDE = 'include';
+ const T_INTERPOLATE = 'interpolate';
+ const T_INTERPOLATED = 'interpolated';
+ const T_KEYWORD = 'keyword';
+ const T_LIST = 'list';
+ const T_MAP = 'map';
+ const T_MEDIA = 'media';
+ const T_MEDIA_EXPRESSION = 'mediaExp';
+ const T_MEDIA_TYPE = 'mediaType';
+ const T_MEDIA_VALUE = 'mediaValue';
+ const T_MIXIN = 'mixin';
+ const T_MIXIN_CONTENT = 'mixin_content';
+ const T_NESTED_PROPERTY = 'nestedprop';
+ const T_NOT = 'not';
+ const T_NULL = 'null';
+ const T_NUMBER = 'number';
+ const T_RETURN = 'return';
+ const T_ROOT = 'root';
+ const T_SCSSPHP_IMPORT_ONCE = 'scssphp-import-once';
+ const T_SELF = 'self';
+ const T_STRING = 'string';
+ const T_UNARY = 'unary';
+ const T_VARIABLE = 'var';
+ const T_WARN = 'warn';
+ const T_WHILE = 'while';
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+use Leafo\ScssPhp\Base\Range;
+use Leafo\ScssPhp\Exception\RangeException;
+
+/**
+ * Utilty functions
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Util
+{
+ /**
+ * Asserts that `value` falls within `range` (inclusive), leaving
+ * room for slight floating-point errors.
+ *
+ * @param string $name The name of the value. Used in the error message.
+ * @param \Leafo\ScssPhp\Base\Range $range Range of values.
+ * @param array $value The value to check.
+ * @param string $unit The unit of the value. Used in error reporting.
+ *
+ * @return mixed `value` adjusted to fall within range, if it was outside by a floating-point margin.
+ *
+ * @throws \Leafo\ScssPhp\Exception\RangeException
+ */
+ public static function checkRange($name, Range $range, $value, $unit = '')
+ {
+ $val = $value[1];
+ $grace = new Range(-0.00001, 0.00001);
+
+ if ($range->includes($val)) {
+ return $val;
+ }
+
+ if ($grace->includes($val - $range->first)) {
+ return $range->first;
+ }
+
+ if ($grace->includes($val - $range->last)) {
+ return $range->last;
+ }
+
+ throw new RangeException("$name {$val} must be between {$range->first} and {$range->last}$unit");
+ }
+
+ /**
+ * Encode URI component
+ *
+ * @param string $string
+ *
+ * @return string
+ */
+ public static function encodeURIComponent($string)
+ {
+ $revert = array('%21' => '!', '%2A' => '*', '%27' => "'", '%28' => '(', '%29' => ')');
+
+ return strtr(rawurlencode($string), $revert);
+ }
+}
--- /dev/null
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2018 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+
+namespace Leafo\ScssPhp;
+
+/**
+ * SCSSPHP version
+ *
+ * @author Leaf Corcoran <leafot@gmail.com>
+ */
+class Version
+{
+ const VERSION = 'v0.7.6';
+}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * Stub classes for backward compatibility
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-// @codingStandardsIgnoreStart
-/**
- * @deprecated since 0.1.0
- */
-class scssc extends \Leafo\ScssPhp\Compiler
-{
-}
-
-/**
- * @deprecated since 0.1.0
- */
-class scss_parser extends \Leafo\ScssPhp\Parser
-{
-}
-
-/**
- * @deprecated since 0.1.0
- */
-class scss_formatter extends \Leafo\ScssPhp\Formatter\Expanded
-{
-}
-
-/**
- * @deprecated since 0.1.0
- */
-class scss_formatter_nested extends \Leafo\ScssPhp\Formatter\Nested
-{
-}
-
-/**
- * @deprecated since 0.1.0
- */
-class scss_formatter_compressed extends \Leafo\ScssPhp\Formatter\Compressed
-{
-}
-
-/**
- * @deprecated since 0.1.0
- */
-class scss_formatter_crunched extends \Leafo\ScssPhp\Formatter\Crunched
-{
-}
-
-/**
- * @deprecated since 0.1.0
- */
-class scss_server extends \Leafo\ScssPhp\Server
-{
-}
-// @codingStandardsIgnoreEnd
<?php
-if (version_compare(PHP_VERSION, '5.3') < 0) {
- die('Requires PHP 5.3 or above');
-}
-
-if (! class_exists('scssc', false)) {
- include_once __DIR__ . '/src/Base/Range.php';
- include_once __DIR__ . '/src/Colors.php';
- include_once __DIR__ . '/src/Compiler.php';
- include_once __DIR__ . '/src/Formatter.php';
- include_once __DIR__ . '/src/Formatter/Compact.php';
- include_once __DIR__ . '/src/Formatter/Compressed.php';
- include_once __DIR__ . '/src/Formatter/Crunched.php';
- include_once __DIR__ . '/src/Formatter/Expanded.php';
- include_once __DIR__ . '/src/Formatter/Nested.php';
- include_once __DIR__ . '/src/Parser.php';
- include_once __DIR__ . '/src/Util.php';
- include_once __DIR__ . '/src/Version.php';
- include_once __DIR__ . '/src/Server.php';
- include_once __DIR__ . '/classmap.php';
-}
+require(WCF_DIR.'lib/system/api/leafo/scssphp/scss.inc.php');
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp\Base;
-
-/**
- * Range class
- *
- * @author Anthon Pang <anthon.pang@gmail.com>
- */
-class Range
-{
- public $first;
- public $last;
-
- /**
- * Initialize range
- *
- * @param integer|float $first
- * @param integer|float $last
- */
- public function __construct($first, $last)
- {
- $this->first = $first;
- $this->last = $last;
- }
-
- /**
- * Test for inclusion in range
- *
- * @param integer|float $value
- *
- * @return boolean
- */
- public function includes($value)
- {
- return $value >= $this->first && $value <= $this->last;
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp;
-
-/**
- * CSS Colors
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Colors
-{
- /**
- * CSS Colors
- *
- * @see http://www.w3.org/TR/css3-color
- */
- public static $cssColors = array(
- 'aliceblue' => '240,248,255',
- 'antiquewhite' => '250,235,215',
- 'aqua' => '0,255,255',
- 'aquamarine' => '127,255,212',
- 'azure' => '240,255,255',
- 'beige' => '245,245,220',
- 'bisque' => '255,228,196',
- 'black' => '0,0,0',
- 'blanchedalmond' => '255,235,205',
- 'blue' => '0,0,255',
- 'blueviolet' => '138,43,226',
- 'brown' => '165,42,42',
- 'burlywood' => '222,184,135',
- 'cadetblue' => '95,158,160',
- 'chartreuse' => '127,255,0',
- 'chocolate' => '210,105,30',
- 'coral' => '255,127,80',
- 'cornflowerblue' => '100,149,237',
- 'cornsilk' => '255,248,220',
- 'crimson' => '220,20,60',
- 'cyan' => '0,255,255',
- 'darkblue' => '0,0,139',
- 'darkcyan' => '0,139,139',
- 'darkgoldenrod' => '184,134,11',
- 'darkgray' => '169,169,169',
- 'darkgreen' => '0,100,0',
- 'darkgrey' => '169,169,169',
- 'darkkhaki' => '189,183,107',
- 'darkmagenta' => '139,0,139',
- 'darkolivegreen' => '85,107,47',
- 'darkorange' => '255,140,0',
- 'darkorchid' => '153,50,204',
- 'darkred' => '139,0,0',
- 'darksalmon' => '233,150,122',
- 'darkseagreen' => '143,188,143',
- 'darkslateblue' => '72,61,139',
- 'darkslategray' => '47,79,79',
- 'darkslategrey' => '47,79,79',
- 'darkturquoise' => '0,206,209',
- 'darkviolet' => '148,0,211',
- 'deeppink' => '255,20,147',
- 'deepskyblue' => '0,191,255',
- 'dimgray' => '105,105,105',
- 'dimgrey' => '105,105,105',
- 'dodgerblue' => '30,144,255',
- 'firebrick' => '178,34,34',
- 'floralwhite' => '255,250,240',
- 'forestgreen' => '34,139,34',
- 'fuchsia' => '255,0,255',
- 'gainsboro' => '220,220,220',
- 'ghostwhite' => '248,248,255',
- 'gold' => '255,215,0',
- 'goldenrod' => '218,165,32',
- 'gray' => '128,128,128',
- 'green' => '0,128,0',
- 'greenyellow' => '173,255,47',
- 'grey' => '128,128,128',
- 'honeydew' => '240,255,240',
- 'hotpink' => '255,105,180',
- 'indianred' => '205,92,92',
- 'indigo' => '75,0,130',
- 'ivory' => '255,255,240',
- 'khaki' => '240,230,140',
- 'lavender' => '230,230,250',
- 'lavenderblush' => '255,240,245',
- 'lawngreen' => '124,252,0',
- 'lemonchiffon' => '255,250,205',
- 'lightblue' => '173,216,230',
- 'lightcoral' => '240,128,128',
- 'lightcyan' => '224,255,255',
- 'lightgoldenrodyellow' => '250,250,210',
- 'lightgray' => '211,211,211',
- 'lightgreen' => '144,238,144',
- 'lightgrey' => '211,211,211',
- 'lightpink' => '255,182,193',
- 'lightsalmon' => '255,160,122',
- 'lightseagreen' => '32,178,170',
- 'lightskyblue' => '135,206,250',
- 'lightslategray' => '119,136,153',
- 'lightslategrey' => '119,136,153',
- 'lightsteelblue' => '176,196,222',
- 'lightyellow' => '255,255,224',
- 'lime' => '0,255,0',
- 'limegreen' => '50,205,50',
- 'linen' => '250,240,230',
- 'magenta' => '255,0,255',
- 'maroon' => '128,0,0',
- 'mediumaquamarine' => '102,205,170',
- 'mediumblue' => '0,0,205',
- 'mediumorchid' => '186,85,211',
- 'mediumpurple' => '147,112,219',
- 'mediumseagreen' => '60,179,113',
- 'mediumslateblue' => '123,104,238',
- 'mediumspringgreen' => '0,250,154',
- 'mediumturquoise' => '72,209,204',
- 'mediumvioletred' => '199,21,133',
- 'midnightblue' => '25,25,112',
- 'mintcream' => '245,255,250',
- 'mistyrose' => '255,228,225',
- 'moccasin' => '255,228,181',
- 'navajowhite' => '255,222,173',
- 'navy' => '0,0,128',
- 'oldlace' => '253,245,230',
- 'olive' => '128,128,0',
- 'olivedrab' => '107,142,35',
- 'orange' => '255,165,0',
- 'orangered' => '255,69,0',
- 'orchid' => '218,112,214',
- 'palegoldenrod' => '238,232,170',
- 'palegreen' => '152,251,152',
- 'paleturquoise' => '175,238,238',
- 'palevioletred' => '219,112,147',
- 'papayawhip' => '255,239,213',
- 'peachpuff' => '255,218,185',
- 'peru' => '205,133,63',
- 'pink' => '255,192,203',
- 'plum' => '221,160,221',
- 'powderblue' => '176,224,230',
- 'purple' => '128,0,128',
- 'red' => '255,0,0',
- 'rosybrown' => '188,143,143',
- 'royalblue' => '65,105,225',
- 'saddlebrown' => '139,69,19',
- 'salmon' => '250,128,114',
- 'sandybrown' => '244,164,96',
- 'seagreen' => '46,139,87',
- 'seashell' => '255,245,238',
- 'sienna' => '160,82,45',
- 'silver' => '192,192,192',
- 'skyblue' => '135,206,235',
- 'slateblue' => '106,90,205',
- 'slategray' => '112,128,144',
- 'slategrey' => '112,128,144',
- 'snow' => '255,250,250',
- 'springgreen' => '0,255,127',
- 'steelblue' => '70,130,180',
- 'tan' => '210,180,140',
- 'teal' => '0,128,128',
- 'thistle' => '216,191,216',
- 'tomato' => '255,99,71',
- 'transparent' => '0,0,0,0',
- 'turquoise' => '64,224,208',
- 'violet' => '238,130,238',
- 'wheat' => '245,222,179',
- 'white' => '255,255,255',
- 'whitesmoke' => '245,245,245',
- 'yellow' => '255,255,0',
- 'yellowgreen' => '154,205,50'
- );
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp;
-
-use Leafo\ScssPhp\Base\Range;
-use Leafo\ScssPhp\Colors;
-use Leafo\ScssPhp\Parser;
-use Leafo\ScssPhp\Util;
-
-/**
- * The scss compiler and parser.
- *
- * Converting SCSS to CSS is a three stage process. The incoming file is parsed
- * by `Parser` into a syntax tree, then it is compiled into another tree
- * representing the CSS structure by `Compiler`. The CSS tree is fed into a
- * formatter, like `Formatter` which then outputs CSS as a string.
- *
- * During the first compile, all values are *reduced*, which means that their
- * types are brought to the lowest form before being dump as strings. This
- * handles math equations, variable dereferences, and the like.
- *
- * The `compile` function of `Compiler` is the entry point.
- *
- * In summary:
- *
- * The `Compiler` class creates an instance of the parser, feeds it SCSS code,
- * then transforms the resulting tree to a CSS tree. This class also holds the
- * evaluation context, such as all available mixins and variables at any given
- * time.
- *
- * The `Parser` class is only concerned with parsing its input.
- *
- * The `Formatter` takes a CSS tree, and dumps it to a formatted string,
- * handling things like indentation.
- */
-
-/**
- * SCSS compiler
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Compiler
-{
- const LINE_COMMENTS = 1;
- const DEBUG_INFO = 2;
-
- /**
- * @var array
- */
- static protected $operatorNames = array(
- '+' => 'add',
- '-' => 'sub',
- '*' => 'mul',
- '/' => 'div',
- '%' => 'mod',
-
- '==' => 'eq',
- '!=' => 'neq',
- '<' => 'lt',
- '>' => 'gt',
-
- '<=' => 'lte',
- '>=' => 'gte',
- );
-
- /**
- * @var array
- */
- static protected $namespaces = array(
- 'special' => '%',
- 'mixin' => '@',
- 'function' => '^',
- );
-
- /**
- * @var array
- */
- static protected $unitTable = array(
- 'in' => array(
- 'in' => 1,
- 'pt' => 72,
- 'pc' => 6,
- 'cm' => 2.54,
- 'mm' => 25.4,
- 'px' => 96,
- 'q' => 101.6,
- )
- );
-
- static public $true = array('keyword', 'true');
- static public $false = array('keyword', 'false');
- static public $null = array('null');
- static public $defaultValue = array('keyword', '');
- static public $selfSelector = array('self');
- static public $emptyList = array('list', '', array());
- static public $emptyMap = array('map', array(), array());
- static public $emptyString = array('string', '"', array());
-
- protected $importPaths = array('');
- protected $importCache = array();
- protected $userFunctions = array();
- protected $registeredVars = array();
-
- protected $numberPrecision = 5;
- protected $lineNumberStyle = null;
-
- protected $formatter = 'Leafo\ScssPhp\Formatter\Nested';
-
- private $indentLevel;
- private $commentsSeen;
- private $extends;
- private $extendsMap;
- private $parsedFiles;
- private $env;
- private $scope;
- private $parser;
- private $sourcePos;
- private $sourceParser;
- private $storeEnv;
- private $charsetSeen;
- private $stderr;
- private $shouldEvaluate;
-
- /**
- * Compile scss
- *
- * @api
- *
- * @param string $code
- * @param string $name
- *
- * @return string
- */
- public function compile($code, $name = null)
- {
- $this->indentLevel = -1;
- $this->commentsSeen = array();
- $this->extends = array();
- $this->extendsMap = array();
- $this->parsedFiles = array();
- $this->env = null;
- $this->scope = null;
-
- $this->stderr = fopen('php://stderr', 'w');
-
- $locale = setlocale(LC_NUMERIC, 0);
- setlocale(LC_NUMERIC, 'C');
-
- $this->parser = new Parser($name);
-
- $tree = $this->parser->parse($code);
-
- $this->formatter = new $this->formatter();
-
- $this->rootEnv = $this->pushEnv($tree);
- $this->injectVariables($this->registeredVars);
- $this->compileRoot($tree);
- $this->popEnv();
-
- $out = $this->formatter->format($this->scope);
-
- setlocale(LC_NUMERIC, $locale);
-
- return $out;
- }
-
- /**
- * Is self extend?
- *
- * @param array $target
- * @param array $origin
- *
- * @return boolean
- */
- protected function isSelfExtend($target, $origin)
- {
- foreach ($origin as $sel) {
- if (in_array($target, $sel)) {
- return true;
- }
- }
-
- return false;
- }
-
- /**
- * Push extends
- *
- * @param array $target
- * @param array $origin
- */
- protected function pushExtends($target, $origin)
- {
- if ($this->isSelfExtend($target, $origin)) {
- return;
- }
-
- $i = count($this->extends);
- $this->extends[] = array($target, $origin);
-
- foreach ($target as $part) {
- if (isset($this->extendsMap[$part])) {
- $this->extendsMap[$part][] = $i;
- } else {
- $this->extendsMap[$part] = array($i);
- }
- }
- }
-
- /**
- * Make output block
- *
- * @param string $type
- * @param array $selectors
- *
- * @return \stdClass
- */
- protected function makeOutputBlock($type, $selectors = null)
- {
- $out = new \stdClass;
- $out->type = $type;
- $out->lines = array();
- $out->children = array();
- $out->parent = $this->scope;
- $out->selectors = $selectors;
- $out->depth = $this->env->depth;
-
- return $out;
- }
-
- /**
- * Compile root
- *
- * @param \stdClass $rootBlock
- */
- protected function compileRoot($rootBlock)
- {
- $this->scope = $this->makeOutputBlock('root');
-
- $this->compileChildren($rootBlock->children, $this->scope);
- $this->flattenSelectors($this->scope);
- }
-
- /**
- * Flatten selectors
- *
- * @param \stdClass $block
- * @parent string $parentKey
- */
- protected function flattenSelectors($block, $parentKey = null)
- {
- if ($block->selectors) {
- $selectors = array();
-
- foreach ($block->selectors as $s) {
- $selectors[] = $s;
-
- if (! is_array($s)) {
- continue;
- }
-
- // check extends
- if (! empty($this->extendsMap)) {
- $this->matchExtends($s, $selectors);
-
- // remove duplicates
- array_walk($selectors, function (&$value) {
- $value = json_encode($value);
- });
- $selectors = array_unique($selectors);
- array_walk($selectors, function (&$value) {
- $value = json_decode($value);
- });
- }
- }
-
- $block->selectors = array();
- $placeholderSelector = false;
-
- foreach ($selectors as $selector) {
- if ($this->hasSelectorPlaceholder($selector)) {
- $placeholderSelector = true;
- continue;
- }
-
- $block->selectors[] = $this->compileSelector($selector);
- }
-
- if ($placeholderSelector && 0 === count($block->selectors) && null !== $parentKey) {
- unset($block->parent->children[$parentKey]);
-
- return;
- }
- }
-
- foreach ($block->children as $key => $child) {
- $this->flattenSelectors($child, $key);
- }
- }
-
- /**
- * Match extends
- *
- * @param array $selector
- * @param array $out
- * @param integer $from
- * @param boolean $initial
- */
- protected function matchExtends($selector, &$out, $from = 0, $initial = true)
- {
- foreach ($selector as $i => $part) {
- if ($i < $from) {
- continue;
- }
-
- if ($this->matchExtendsSingle($part, $origin)) {
- $before = array_slice($selector, 0, $i);
- $after = array_slice($selector, $i + 1);
- $s = count($before);
-
- foreach ($origin as $new) {
- $k = 0;
-
- // remove shared parts
- if ($initial) {
- while ($k < $s && isset($new[$k]) && $before[$k] === $new[$k]) {
- $k++;
- }
- }
-
- $result = array_merge(
- $before,
- $k > 0 ? array_slice($new, $k) : $new,
- $after
- );
-
- if ($result === $selector) {
- continue;
- }
-
- $out[] = $result;
-
- // recursively check for more matches
- $this->matchExtends($result, $out, $i, false);
-
- // selector sequence merging
- if (! empty($before) && count($new) > 1) {
- $result2 = array_merge(
- array_slice($new, 0, -1),
- $k > 0 ? array_slice($before, $k) : $before,
- array_slice($new, -1),
- $after
- );
-
- $out[] = $result2;
- }
- }
- }
- }
- }
-
- /**
- * Match extends single
- *
- * @param array $rawSingle
- * @param array $outOrigin
- *
- * @return boolean
- */
- protected function matchExtendsSingle($rawSingle, &$outOrigin)
- {
- $counts = array();
- $single = array();
-
- foreach ($rawSingle as $part) {
- // matches Number
- if (! is_string($part)) {
- return false;
- }
-
- if (! preg_match('/^[\[.:#%]/', $part) && count($single)) {
- $single[count($single) - 1] .= $part;
- } else {
- $single[] = $part;
- }
- }
-
- foreach ($single as $part) {
- if (isset($this->extendsMap[$part])) {
- foreach ($this->extendsMap[$part] as $idx) {
- $counts[$idx] = isset($counts[$idx]) ? $counts[$idx] + 1 : 1;
- }
- }
- }
-
- $outOrigin = array();
- $found = false;
-
- foreach ($counts as $idx => $count) {
- list($target, $origin) = $this->extends[$idx];
-
- // check count
- if ($count !== count($target)) {
- continue;
- }
-
- $rem = array_diff($single, $target);
-
- foreach ($origin as $j => $new) {
- // prevent infinite loop when target extends itself
- if ($this->isSelfExtend($single, $origin)) {
- return false;
- }
-
- $origin[$j][count($origin[$j]) - 1] = $this->combineSelectorSingle(end($new), $rem);
- }
-
- $outOrigin = array_merge($outOrigin, $origin);
-
- $found = true;
- }
-
- return $found;
- }
-
- /**
- * Combine selector single
- *
- * @param array $base
- * @param array $other
- *
- * @return array
- */
- protected function combineSelectorSingle($base, $other)
- {
- $tag = null;
- $out = array();
-
- foreach (array($base, $other) as $single) {
- foreach ($single as $part) {
- if (preg_match('/^[^\[.#:]/', $part)) {
- $tag = $part;
- } else {
- $out[] = $part;
- }
- }
- }
-
- if ($tag) {
- array_unshift($out, $tag);
- }
-
- return $out;
- }
-
- /**
- * Compile media
- *
- * @param \stdClass $media
- */
- protected function compileMedia($media)
- {
- $this->pushEnv($media);
-
- $mediaQuery = $this->compileMediaQuery($this->multiplyMedia($this->env));
-
- if (! empty($mediaQuery)) {
- $this->scope = $this->makeOutputBlock('media', array($mediaQuery));
-
- $parentScope = $this->mediaParent($this->scope);
- $parentScope->children[] = $this->scope;
-
- // top level properties in a media cause it to be wrapped
- $needsWrap = false;
-
- foreach ($media->children as $child) {
- $type = $child[0];
-
- if ($type !== 'block' && $type !== 'media' && $type !== 'directive') {
- $needsWrap = true;
- break;
- }
- }
-
- if ($needsWrap) {
- $wrapped = (object)array(
- 'selectors' => array(),
- 'children' => $media->children
- );
- $media->children = array(array('block', $wrapped));
- }
-
- $this->compileChildren($media->children, $this->scope);
-
- $this->scope = $this->scope->parent;
- }
-
- $this->popEnv();
- }
-
- /**
- * Media parent
- *
- * @param \stdClass $scope
- *
- * @return \stdClass
- */
- protected function mediaParent($scope)
- {
- while (! empty($scope->parent)) {
- if (! empty($scope->type) && $scope->type !== 'media') {
- break;
- }
-
- $scope = $scope->parent;
- }
-
- return $scope;
- }
-
- /**
- * Compile nested block
- *
- * @todo refactor compileNestedBlock and compileMedia into same thing?
- *
- * @param \stdClass $block
- * @param array $selectors
- */
- protected function compileNestedBlock($block, $selectors)
- {
- $this->pushEnv($block);
-
- $this->scope = $this->makeOutputBlock($block->type, $selectors);
- $this->scope->parent->children[] = $this->scope;
-
- $this->compileChildren($block->children, $this->scope);
-
- $this->scope = $this->scope->parent;
-
- $this->popEnv();
- }
-
- /**
- * Recursively compiles a block.
- *
- * A block is analogous to a CSS block in most cases. A single SCSS document
- * is encapsulated in a block when parsed, but it does not have parent tags
- * so all of its children appear on the root level when compiled.
- *
- * Blocks are made up of selectors and children.
- *
- * The children of a block are just all the blocks that are defined within.
- *
- * Compiling the block involves pushing a fresh environment on the stack,
- * and iterating through the props, compiling each one.
- *
- * @see Compiler::compileChild()
- *
- * @param \stdClass $block
- */
- protected function compileBlock($block)
- {
- $env = $this->pushEnv($block);
-
- $env->selectors = $this->evalSelectors($block->selectors);
-
- $out = $this->makeOutputBlock(null, $this->multiplySelectors($env));
-
- if (isset($this->lineNumberStyle) && count($env->selectors) && count($block->children)) {
- $annotation = $this->makeOutputBlock('comment');
- $annotation->depth = 0;
-
- $file = $block->sourceParser->getSourceName();
- $line = $block->sourceParser->getLineNo($block->sourcePosition);
-
- switch ($this->lineNumberStyle) {
- case self::LINE_COMMENTS:
- $annotation->lines[] = '/* line ' . $line . ', ' . $file . ' */';
- break;
-
- case self::DEBUG_INFO:
- $annotation->lines[] = '@media -sass-debug-info{filename{font-family:"' . $file
- . '"}line{font-family:' . $line . '}}';
- break;
- }
-
- $this->scope->children[] = $annotation;
- }
-
- $this->scope->children[] = $out;
-
- $this->compileChildren($block->children, $out);
-
- $this->formatter->stripSemicolon($out->lines);
-
- $this->popEnv();
- }
-
- /**
- * Compile root level comment
- *
- * @param array $block
- */
- protected function compileComment($block)
- {
- $out = $this->makeOutputBlock('comment');
- $out->lines[] = $block[1];
- $this->scope->children[] = $out;
- }
-
- /**
- * Evaluate selectors
- *
- * @param array $selectors
- *
- * @return array
- */
- protected function evalSelectors($selectors)
- {
- $this->shouldEvaluate = false;
-
- $selectors = array_map(array($this, 'evalSelector'), $selectors);
-
- // after evaluating interpolates, we might need a second pass
- if ($this->shouldEvaluate) {
- $buffer = $this->collapseSelectors($selectors);
- $parser = new Parser(__METHOD__, false);
-
- if ($parser->parseSelector($buffer, $newSelectors)) {
- $selectors = array_map(array($this, 'evalSelector'), $newSelectors);
- }
- }
-
- return $selectors;
- }
-
- /**
- * Evaluate selector
- *
- * @param array $selector
- *
- * @return array
- */
- protected function evalSelector($selector)
- {
- return array_map(array($this, 'evalSelectorPart'), $selector);
- }
-
- /**
- * Evaluate selector part; replaces all the interpolates, stripping quotes
- *
- * @param array $part
- *
- * @return array
- */
- protected function evalSelectorPart($part)
- {
- foreach ($part as &$p) {
- if (is_array($p) && ($p[0] === 'interpolate' || $p[0] === 'string')) {
- $p = $this->compileValue($p);
-
- // force re-evaluation
- if (strpos($p, '&') !== false || strpos($p, ',') !== false) {
- $this->shouldEvaluate = true;
- }
- } elseif (is_string($p) && strlen($p) >= 2 &&
- ($first = $p[0]) && ($first === '"' || $first === "'") &&
- substr($p, -1) === $first
- ) {
- $p = substr($p, 1, -1);
- }
- }
-
- return $this->flattenSelectorSingle($part);
- }
-
- /**
- * Collapse selectors
- *
- * @param array $selectors
- *
- * @return string
- */
- protected function collapseSelectors($selectors)
- {
- $parts = array();
-
- foreach ($selectors as $selector) {
- $output = '';
-
- array_walk_recursive(
- $selector,
- function ($value, $key) use (&$output) {
- $output .= $value;
- }
- );
-
- $parts[] = $output;
- }
-
- return implode(', ', $parts);
- }
-
- /**
- * Flatten selector single; joins together .classes and #ids
- *
- * @param array $single
- *
- * @return array
- */
- protected function flattenSelectorSingle($single)
- {
- $joined = array();
-
- foreach ($single as $part) {
- if (empty($joined) ||
- ! is_string($part) ||
- preg_match('/[\[.:#%]/', $part)
- ) {
- $joined[] = $part;
- continue;
- }
-
- if (is_array(end($joined))) {
- $joined[] = $part;
- } else {
- $joined[count($joined) - 1] .= $part;
- }
- }
-
- return $joined;
- }
-
- /**
- * Compile selector to string; self(&) should have been replaced by now
- *
- * @param array $selector
- *
- * @return string
- */
- protected function compileSelector($selector)
- {
- if (! is_array($selector)) {
- return $selector; // media and the like
- }
-
- return implode(
- ' ',
- array_map(
- array($this, 'compileSelectorPart'),
- $selector
- )
- );
- }
-
- /**
- * Compile selector part
- *
- * @param arary $piece
- *
- * @return string
- */
- protected function compileSelectorPart($piece)
- {
- foreach ($piece as &$p) {
- if (! is_array($p)) {
- continue;
- }
-
- switch ($p[0]) {
- case 'self':
- $p = '&';
- break;
-
- default:
- $p = $this->compileValue($p);
- break;
- }
- }
-
- return implode($piece);
- }
-
- /**
- * Has selector placeholder?
- *
- * @param array $selector
- *
- * @return boolean
- */
- protected function hasSelectorPlaceholder($selector)
- {
- if (! is_array($selector)) {
- return false;
- }
-
- foreach ($selector as $parts) {
- foreach ($parts as $part) {
- if ('%' === $part[0]) {
- return true;
- }
- }
- }
-
- return false;
- }
-
- /**
- * Compile children
- *
- * @param array $stms
- * @param array $out
- *
- * @return array
- */
- protected function compileChildren($stms, $out)
- {
- foreach ($stms as $stm) {
- $ret = $this->compileChild($stm, $out);
-
- if (isset($ret)) {
- return $ret;
- }
- }
- }
-
- /**
- * Compile media query
- *
- * @param array $queryList
- *
- * @return string
- */
- protected function compileMediaQuery($queryList)
- {
- $out = '@media';
- $first = true;
-
- foreach ($queryList as $query) {
- $type = null;
- $parts = array();
-
- foreach ($query as $q) {
- switch ($q[0]) {
- case 'mediaType':
- if ($type) {
- $type = $this->mergeMediaTypes(
- $type,
- array_map(array($this, 'compileValue'), array_slice($q, 1))
- );
-
- if (empty($type)) { // merge failed
- return null;
- }
- } else {
- $type = array_map(array($this, 'compileValue'), array_slice($q, 1));
- }
- break;
-
- case 'mediaExp':
- if (isset($q[2])) {
- $parts[] = '('
- . $this->compileValue($q[1])
- . $this->formatter->assignSeparator
- . $this->compileValue($q[2])
- . ')';
- } else {
- $parts[] = '('
- . $this->compileValue($q[1])
- . ')';
- }
- break;
- }
- }
-
- if ($type) {
- array_unshift($parts, implode(' ', array_filter($type)));
- }
-
- if (! empty($parts)) {
- if ($first) {
- $first = false;
- $out .= ' ';
- } else {
- $out .= $this->formatter->tagSeparator;
- }
-
- $out .= implode(' and ', $parts);
- }
- }
-
- return $out;
- }
-
- /**
- * Merge media types
- *
- * @param array $type1
- * @param array $type2
- *
- * @return array|null
- */
- protected function mergeMediaTypes($type1, $type2)
- {
- if (empty($type1)) {
- return $type2;
- }
-
- if (empty($type2)) {
- return $type1;
- }
-
- $m1 = '';
- $t1 = '';
-
- if (count($type1) > 1) {
- $m1= strtolower($type1[0]);
- $t1= strtolower($type1[1]);
- } else {
- $t1 = strtolower($type1[0]);
- }
-
- $m2 = '';
- $t2 = '';
-
- if (count($type2) > 1) {
- $m2 = strtolower($type2[0]);
- $t2 = strtolower($type2[1]);
- } else {
- $t2 = strtolower($type2[0]);
- }
-
- if (($m1 === 'not') ^ ($m2 === 'not')) {
- if ($t1 === $t2) {
- return null;
- }
-
- return array(
- $m1 === 'not' ? $m2 : $m1,
- $m1 === 'not' ? $t2 : $t1
- );
- }
-
- if ($m1 === 'not' && $m2 === 'not') {
- // CSS has no way of representing "neither screen nor print"
- if ($t1 !== $t2) {
- return null;
- }
-
- return array('not', $t1);
- }
-
- if ($t1 !== $t2) {
- return null;
- }
-
- // t1 == t2, neither m1 nor m2 are "not"
- return array(empty($m1)? $m2 : $m1, $t1);
- }
-
- /**
- * Compile import; returns true if the value was something that could be imported
- *
- * @param array $rawPath
- * @param array $out
- *
- * @return boolean
- */
- protected function compileImport($rawPath, $out)
- {
- if ($rawPath[0] === 'string') {
- $path = $this->compileStringContent($rawPath);
-
- if ($path = $this->findImport($path)) {
- $this->importFile($path, $out);
-
- return true;
- }
-
- return false;
- }
-
- if ($rawPath[0] === 'list') {
- // handle a list of strings
- if (count($rawPath[2]) === 0) {
- return false;
- }
-
- foreach ($rawPath[2] as $path) {
- if ($path[0] !== 'string') {
- return false;
- }
- }
-
- foreach ($rawPath[2] as $path) {
- $this->compileImport($path, $out);
- }
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Compile child; returns a value to halt execution
- *
- * @param array $child
- * @param \stdClass $out
- *
- * @return array
- */
- protected function compileChild($child, $out)
- {
- $this->sourcePos = isset($child[Parser::SOURCE_POSITION]) ? $child[Parser::SOURCE_POSITION] : -1;
- $this->sourceParser = isset($child[Parser::SOURCE_PARSER]) ? $child[Parser::SOURCE_PARSER] : $this->parser;
-
- switch ($child[0]) {
- case 'import':
- list(, $rawPath) = $child;
-
- $rawPath = $this->reduce($rawPath);
-
- if (! $this->compileImport($rawPath, $out)) {
- $out->lines[] = '@import ' . $this->compileValue($rawPath) . ';';
- }
- break;
-
- case 'directive':
- list(, $directive) = $child;
-
- $s = '@' . $directive->name;
-
- if (! empty($directive->value)) {
- $s .= ' ' . $this->compileValue($directive->value);
- }
-
- $this->compileNestedBlock($directive, array($s));
- break;
-
- case 'media':
- $this->compileMedia($child[1]);
- break;
-
- case 'block':
- $this->compileBlock($child[1]);
- break;
-
- case 'charset':
- if (! $this->charsetSeen) {
- $this->charsetSeen = true;
-
- $out->lines[] = '@charset ' . $this->compileValue($child[1]) . ';';
- }
- break;
-
- case 'assign':
- list(, $name, $value) = $child;
-
- if ($name[0] === 'var') {
- $flag = isset($child[3]) ? $child[3] : null;
- $isDefault = $flag === '!default';
- $isGlobal = $flag === '!global';
-
- if ($isGlobal) {
- $this->set($name[1], $this->reduce($value), false, $this->rootEnv);
- break;
- }
-
- $shouldSet = $isDefault &&
- (($result = $this->get($name[1], false)) === null
- || $result === self::$null);
-
- if (! $isDefault || $shouldSet) {
- $this->set($name[1], $this->reduce($value));
- }
- break;
- }
-
- $compiledName = $this->compileValue($name);
-
- // handle shorthand syntax: size / line-height
- if ($compiledName === 'font') {
- if ($value[0] === 'exp' && $value[1] === '/') {
- $value = $this->expToString($value);
- } elseif ($value[0] === 'list') {
- foreach ($value[2] as &$item) {
- if ($item[0] === 'exp' && $item[1] === '/') {
- $item = $this->expToString($item);
- }
- }
- }
- }
-
- // if the value reduces to null from something else then
- // the property should be discarded
- if ($value[0] !== 'null') {
- $value = $this->reduce($value);
-
- if ($value[0] === 'null') {
- break;
- }
- }
-
- $compiledValue = $this->compileValue($value);
-
- $out->lines[] = $this->formatter->property(
- $compiledName,
- $compiledValue
- );
- break;
-
- case 'comment':
- if ($out->type === 'root') {
- $this->compileComment($child);
- break;
- }
-
- $out->lines[] = $child[1];
- break;
-
- case 'mixin':
- case 'function':
- list(, $block) = $child;
-
- $this->set(self::$namespaces[$block->type] . $block->name, $block);
- break;
-
- case 'extend':
- list(, $selectors) = $child;
-
- foreach ($selectors as $sel) {
- // only use the first one
- $result = $this->evalSelectors(array($sel));
- $result = current($result[0]);
-
- $this->pushExtends($result, $out->selectors);
- }
- break;
-
- case 'if':
- list(, $if) = $child;
-
- if ($this->isTruthy($this->reduce($if->cond, true))) {
- return $this->compileChildren($if->children, $out);
- }
-
- foreach ($if->cases as $case) {
- if ($case->type === 'else' ||
- $case->type === 'elseif' && $this->isTruthy($this->reduce($case->cond))
- ) {
- return $this->compileChildren($case->children, $out);
- }
- }
- break;
-
- case 'return':
- return $this->reduce($child[1], true);
-
- case 'each':
- list(, $each) = $child;
-
- $list = $this->coerceList($this->reduce($each->list));
-
- $this->pushEnv();
-
- foreach ($list[2] as $item) {
- if (count($each->vars) === 1) {
- $this->set($each->vars[0], $item, true);
- } else {
- list(,, $values) = $this->coerceList($item);
-
- foreach ($each->vars as $i => $var) {
- $this->set($var, isset($values[$i]) ? $values[$i] : self::$null, true);
- }
- }
-
- $ret = $this->compileChildren($each->children, $out);
-
- if ($ret) {
- $this->popEnv();
-
- return $ret;
- }
- }
-
- $this->popEnv();
- break;
-
- case 'while':
- list(, $while) = $child;
-
- while ($this->isTruthy($this->reduce($while->cond, true))) {
- $ret = $this->compileChildren($while->children, $out);
-
- if ($ret) {
- return $ret;
- }
- }
- break;
-
- case 'for':
- list(, $for) = $child;
-
- $start = $this->reduce($for->start, true);
- $start = $start[1];
- $end = $this->reduce($for->end, true);
- $end = $end[1];
- $d = $start < $end ? 1 : -1;
-
- while (true) {
- if ((! $for->until && $start - $d == $end) ||
- ($for->until && $start == $end)
- ) {
- break;
- }
-
- $this->set($for->var, array('number', $start, ''));
- $start += $d;
-
- $ret = $this->compileChildren($for->children, $out);
-
- if ($ret) {
- return $ret;
- }
- }
- break;
-
- case 'nestedprop':
- list(, $prop) = $child;
-
- $prefixed = array();
- $prefix = $this->compileValue($prop->prefix) . '-';
-
- foreach ($prop->children as $child) {
- if ($child[0] === 'assign') {
- array_unshift($child[1][2], $prefix);
- }
-
- if ($child[0] === 'nestedprop') {
- array_unshift($child[1]->prefix[2], $prefix);
- }
-
- $prefixed[] = $child;
- }
-
- $this->compileChildren($prefixed, $out);
- break;
-
- case 'include':
- // including a mixin
- list(, $name, $argValues, $content) = $child;
-
- $mixin = $this->get(self::$namespaces['mixin'] . $name, false);
-
- if (! $mixin) {
- $this->throwError("Undefined mixin $name");
- }
-
- $callingScope = $this->env;
-
- // push scope, apply args
- $this->pushEnv();
- $this->env->depth--;
-
- if (isset($content)) {
- $content->scope = $callingScope;
-
- $this->setRaw(self::$namespaces['special'] . 'content', $content);
- }
-
- if (isset($mixin->args)) {
- $this->applyArguments($mixin->args, $argValues);
- }
-
- $this->env->marker = 'mixin';
-
- foreach ($mixin->children as $child) {
- $this->compileChild($child, $out);
- }
-
- $this->popEnv();
- break;
-
- case 'mixin_content':
- $content = $this->get(self::$namespaces['special'] . 'content', false);
-
- if (! $content) {
- $this->throwError('Expected @content inside of mixin');
- }
-
- if (! isset($content->children)) {
- break;
- }
-
- $this->storeEnv = $content->scope;
-
- foreach ($content->children as $child) {
- $this->compileChild($child, $out);
- }
-
- $this->storeEnv = null;
-
- break;
-
- case 'debug':
- list(, $value) = $child;
-
- $line = $this->parser->getLineNo($this->sourcePos);
- $value = $this->compileValue($this->reduce($value, true));
- fwrite($this->stderr, "Line $line DEBUG: $value\n");
- break;
-
- case 'warn':
- list(, $value) = $child;
-
- $line = $this->parser->getLineNo($this->sourcePos);
- $value = $this->compileValue($this->reduce($value, true));
- echo "Line $line WARN: $value\n";
- break;
-
- case 'error':
- list(, $value) = $child;
-
- $line = $this->parser->getLineNo($this->sourcePos);
- $value = $this->compileValue($this->reduce($value, true));
- $this->throwError("Line $line ERROR: $value\n");
- break;
-
- default:
- $this->throwError("unknown child type: $child[0]");
- }
- }
-
- /**
- * Reduce expression to string
- *
- * @param array $exp
- *
- * @return array
- */
- protected function expToString($exp)
- {
- list(, $op, $left, $right, $inParens, $whiteLeft, $whiteRight) = $exp;
-
- $content = array($this->reduce($left));
-
- if ($whiteLeft) {
- $content[] = ' ';
- }
-
- $content[] = $op;
-
- if ($whiteRight) {
- $content[] = ' ';
- }
-
- $content[] = $this->reduce($right);
-
- return array('string', '', $content);
- }
-
- /**
- * Is truthy?
- *
- * @param array $value
- *
- * @return array
- */
- protected function isTruthy($value)
- {
- return $value !== self::$false && $value !== self::$null;
- }
-
- /**
- * Should $value cause its operand to eval
- *
- * @param array $value
- *
- * @return boolean
- */
- protected function shouldEval($value)
- {
- switch ($value[0]) {
- case 'exp':
- if ($value[1] === '/') {
- return $this->shouldEval($value[2], $value[3]);
- }
-
- // fall-thru
- case 'var':
- case 'fncall':
- return true;
- }
-
- return false;
- }
-
- /**
- * Reduce value
- *
- * @param array $value
- * @param boolean $inExp
- *
- * @return array
- */
- protected function reduce($value, $inExp = false)
- {
- list($type) = $value;
-
- switch ($type) {
- case 'exp':
- list(, $op, $left, $right, $inParens) = $value;
-
- $opName = isset(self::$operatorNames[$op]) ? self::$operatorNames[$op] : $op;
- $inExp = $inExp || $this->shouldEval($left) || $this->shouldEval($right);
-
- $left = $this->reduce($left, true);
- $right = $this->reduce($right, true);
-
- // special case: looks like css short-hand
- if ($opName === 'div' && ! $inParens && ! $inExp && isset($right[2]) && $right[2] !== '') {
- return $this->expToString($value);
- }
-
- $left = $this->coerceForExpression($left);
- $right = $this->coerceForExpression($right);
-
- $ltype = $left[0];
- $rtype = $right[0];
-
- $ucOpName = ucfirst($opName);
- $ucLType = ucfirst($ltype);
- $ucRType = ucfirst($rtype);
-
- // this tries:
- // 1. op[op name][left type][right type]
- // 2. op[left type][right type] (passing the op as first arg
- // 3. op[op name]
- $fn = "op${ucOpName}${ucLType}${ucRType}";
-
- if (is_callable(array($this, $fn)) ||
- (($fn = "op${ucLType}${ucRType}") &&
- is_callable(array($this, $fn)) &&
- $passOp = true) ||
- (($fn = "op${ucOpName}") &&
- is_callable(array($this, $fn)) &&
- $genOp = true)
- ) {
- $unitChange = false;
-
- if (! isset($genOp) &&
- $left[0] === 'number' && $right[0] === 'number'
- ) {
- if ($opName === 'mod' && $right[2] !== '') {
- $this->throwError("Cannot modulo by a number with units: $right[1]$right[2].");
- }
-
- $unitChange = true;
- $emptyUnit = $left[2] === '' || $right[2] === '';
- $targetUnit = '' !== $left[2] ? $left[2] : $right[2];
-
- if ($opName !== 'mul') {
- $left[2] = '' !== $left[2] ? $left[2] : $targetUnit;
- $right[2] = '' !== $right[2] ? $right[2] : $targetUnit;
- }
-
- if ($opName !== 'mod') {
- $left = $this->normalizeNumber($left);
- $right = $this->normalizeNumber($right);
- }
-
- if ($opName === 'div' && ! $emptyUnit && $left[2] === $right[2]) {
- $targetUnit = '';
- }
-
- if ($opName === 'mul') {
- $left[2] = '' !== $left[2] ? $left[2] : $right[2];
- $right[2] = '' !== $right[2] ? $right[2] : $left[2];
- } elseif ($opName === 'div' && $left[2] === $right[2]) {
- $left[2] = '';
- $right[2] = '';
- }
- }
-
- $shouldEval = $inParens || $inExp;
-
- if (isset($passOp)) {
- $out = $this->$fn($op, $left, $right, $shouldEval);
- } else {
- $out = $this->$fn($left, $right, $shouldEval);
- }
-
- if (isset($out)) {
- if ($unitChange && $out[0] === 'number') {
- $out = $this->coerceUnit($out, $targetUnit);
- }
-
- return $out;
- }
- }
-
- return $this->expToString($value);
-
- case 'unary':
- list(, $op, $exp, $inParens) = $value;
-
- $inExp = $inExp || $this->shouldEval($exp);
- $exp = $this->reduce($exp);
-
- if ($exp[0] === 'number') {
- switch ($op) {
- case '+':
- return $exp;
-
- case '-':
- $exp[1] *= -1;
-
- return $exp;
- }
- }
-
- if ($op === 'not') {
- if ($inExp || $inParens) {
- if ($exp === self::$false) {
- return self::$true;
- }
-
- return self::$false;
- }
-
- $op = $op . ' ';
- }
-
- return array('string', '', array($op, $exp));
-
- case 'var':
- list(, $name) = $value;
-
- return $this->reduce($this->get($name));
-
- case 'list':
- foreach ($value[2] as &$item) {
- $item = $this->reduce($item);
- }
-
- return $value;
-
- case 'map':
- foreach ($value[1] as &$item) {
- $item = $this->reduce($item);
- }
-
- foreach ($value[2] as &$item) {
- $item = $this->reduce($item);
- }
-
- return $value;
-
- case 'string':
- foreach ($value[2] as &$item) {
- if (is_array($item)) {
- $item = $this->reduce($item);
- }
- }
-
- return $value;
-
- case 'interpolate':
- $value[1] = $this->reduce($value[1]);
-
- return $value;
-
- case 'fncall':
- list(, $name, $argValues) = $value;
-
- // user defined function?
- $func = $this->get(self::$namespaces['function'] . $name, false);
-
- if ($func) {
- $this->pushEnv();
-
- // set the args
- if (isset($func->args)) {
- $this->applyArguments($func->args, $argValues);
- }
-
- // throw away lines and children
- $tmp = (object)array(
- 'lines' => array(),
- 'children' => array()
- );
-
- $ret = $this->compileChildren($func->children, $tmp);
-
- $this->popEnv();
-
- return ! isset($ret) ? self::$defaultValue : $ret;
- }
-
- // built in function
- if ($this->callBuiltin($name, $argValues, $returnValue)) {
- return $returnValue;
- }
-
- // need to flatten the arguments into a list
- $listArgs = array();
-
- foreach ((array)$argValues as $arg) {
- if (empty($arg[0])) {
- $listArgs[] = $this->reduce($arg[1]);
- }
- }
-
- return array('function', $name, array('list', ',', $listArgs));
-
- default:
- return $value;
- }
- }
-
- /**
- * Normalize name
- *
- * @param string $name
- *
- * @return string
- */
- protected function normalizeName($name)
- {
- return str_replace('-', '_', $name);
- }
-
- /**
- * Normalize value
- *
- * @param array $value
- *
- * @return array
- */
- public function normalizeValue($value)
- {
- $value = $this->coerceForExpression($this->reduce($value));
- list($type) = $value;
-
- switch ($type) {
- case 'list':
- $value = $this->extractInterpolation($value);
-
- if ($value[0] !== 'list') {
- return array('keyword', $this->compileValue($value));
- }
-
- foreach ($value[2] as $key => $item) {
- $value[2][$key] = $this->normalizeValue($item);
- }
-
- return $value;
-
- case 'string':
- return array($type, '"', $this->compileStringContent($value));
-
- case 'number':
- return $this->normalizeNumber($value);
-
- default:
- return $value;
- }
- }
-
- /**
- * Normalize number; just does physical lengths for now
- *
- * @param array $number
- *
- * @return array
- */
- protected function normalizeNumber($number)
- {
- list(, $value, $unit) = $number;
-
- if (isset(self::$unitTable['in'][$unit])) {
- $conv = self::$unitTable['in'][$unit];
-
- return array('number', $value / $conv, 'in');
- }
-
- return $number;
- }
-
- /**
- * Add numbers
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opAddNumberNumber($left, $right)
- {
- return array('number', $left[1] + $right[1], $left[2]);
- }
-
- /**
- * Multiply numbers
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opMulNumberNumber($left, $right)
- {
- return array('number', $left[1] * $right[1], $left[2]);
- }
-
- /**
- * Subtract numbers
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opSubNumberNumber($left, $right)
- {
- return array('number', $left[1] - $right[1], $left[2]);
- }
-
- /**
- * Divide numbers
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opDivNumberNumber($left, $right)
- {
- if ($right[1] == 0) {
- $this->throwError('Division by zero');
- }
-
- return array('number', $left[1] / $right[1], $left[2]);
- }
-
- /**
- * Mod numbers
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opModNumberNumber($left, $right)
- {
- return array('number', $left[1] % $right[1], $left[2]);
- }
-
- /**
- * Add strings
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opAdd($left, $right)
- {
- if ($strLeft = $this->coerceString($left)) {
- if ($right[0] === 'string') {
- $right[1] = '';
- }
-
- $strLeft[2][] = $right;
-
- return $strLeft;
- }
-
- if ($strRight = $this->coerceString($right)) {
- if ($left[0] === 'string') {
- $left[1] = '';
- }
-
- array_unshift($strRight[2], $left);
-
- return $strRight;
- }
- }
-
- /**
- * Boolean and
- *
- * @param array $left
- * @param array $right
- * @param boolean $shouldEval
- *
- * @return array
- */
- protected function opAnd($left, $right, $shouldEval)
- {
- if (! $shouldEval) {
- return;
- }
-
- if ($left !== self::$false) {
- return $right;
- }
-
- return $left;
- }
-
- /**
- * Boolean or
- *
- * @param array $left
- * @param array $right
- * @param boolean $shouldEval
- *
- * @return array
- */
- protected function opOr($left, $right, $shouldEval)
- {
- if (! $shouldEval) {
- return;
- }
-
- if ($left !== self::$false) {
- return $left;
- }
-
- return $right;
- }
-
- /**
- * Compare colors
- *
- * @param string $op
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opColorColor($op, $left, $right)
- {
- $out = array('color');
-
- foreach (range(1, 3) as $i) {
- $lval = isset($left[$i]) ? $left[$i] : 0;
- $rval = isset($right[$i]) ? $right[$i] : 0;
-
- switch ($op) {
- case '+':
- $out[] = $lval + $rval;
- break;
-
- case '-':
- $out[] = $lval - $rval;
- break;
-
- case '*':
- $out[] = $lval * $rval;
- break;
-
- case '%':
- $out[] = $lval % $rval;
- break;
-
- case '/':
- if ($rval == 0) {
- $this->throwError("color: Can't divide by zero");
- }
-
- $out[] = (int) ($lval / $rval);
- break;
-
- case '==':
- return $this->opEq($left, $right);
-
- case '!=':
- return $this->opNeq($left, $right);
-
- default:
- $this->throwError("color: unknown op $op");
- }
- }
-
- if (isset($left[4])) {
- $out[4] = $left[4];
- } elseif (isset($right[4])) {
- $out[4] = $right[4];
- }
-
- return $this->fixColor($out);
- }
-
- /**
- * Compare color and number
- *
- * @param string $op
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opColorNumber($op, $left, $right)
- {
- $value = $right[1];
-
- return $this->opColorColor(
- $op,
- $left,
- array('color', $value, $value, $value)
- );
- }
-
- /**
- * Compare number and color
- *
- * @param string $op
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opNumberColor($op, $left, $right)
- {
- $value = $left[1];
-
- return $this->opColorColor(
- $op,
- array('color', $value, $value, $value),
- $right
- );
- }
-
- /**
- * Compare number1 == number2
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opEq($left, $right)
- {
- if (($lStr = $this->coerceString($left)) && ($rStr = $this->coerceString($right))) {
- $lStr[1] = '';
- $rStr[1] = '';
-
- $left = $this->compileValue($lStr);
- $right = $this->compileValue($rStr);
- }
-
- return $this->toBool($left === $right);
- }
-
- /**
- * Compare number1 != number2
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opNeq($left, $right)
- {
- if (($lStr = $this->coerceString($left)) && ($rStr = $this->coerceString($right))) {
- $lStr[1] = '';
- $rStr[1] = '';
-
- $left = $this->compileValue($lStr);
- $right = $this->compileValue($rStr);
- }
-
- return $this->toBool($left !== $right);
- }
-
- /**
- * Compare number1 >= number2
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opGteNumberNumber($left, $right)
- {
- return $this->toBool($left[1] >= $right[1]);
- }
-
- /**
- * Compare number1 > number2
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opGtNumberNumber($left, $right)
- {
- return $this->toBool($left[1] > $right[1]);
- }
-
- /**
- * Compare number1 <= number2
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opLteNumberNumber($left, $right)
- {
- return $this->toBool($left[1] <= $right[1]);
- }
-
- /**
- * Compare number1 < number2
- *
- * @param array $left
- * @param array $right
- *
- * @return array
- */
- protected function opLtNumberNumber($left, $right)
- {
- return $this->toBool($left[1] < $right[1]);
- }
-
- /**
- * Cast to boolean
- *
- * @api
- *
- * @param mixed $thing
- *
- * @return array
- */
- public function toBool($thing)
- {
- return $thing ? self::$true : self::$false;
- }
-
- /**
- * Compiles a primitive value into a CSS property value.
- *
- * Values in scssphp are typed by being wrapped in arrays, their format is
- * typically:
- *
- * array(type, contents [, additional_contents]*)
- *
- * The input is expected to be reduced. This function will not work on
- * things like expressions and variables.
- *
- * @api
- *
- * @param array $value
- *
- * @return string
- */
- public function compileValue($value)
- {
- $value = $this->reduce($value);
-
- list($type) = $value;
-
- switch ($type) {
- case 'keyword':
- return $value[1];
-
- case 'color':
- // [1] - red component (either number for a %)
- // [2] - green component
- // [3] - blue component
- // [4] - optional alpha component
- list(, $r, $g, $b) = $value;
-
- $r = round($r);
- $g = round($g);
- $b = round($b);
-
- if (count($value) === 5 && $value[4] !== 1) { // rgba
- return 'rgba(' . $r . ', ' . $g . ', ' . $b . ', ' . $value[4] . ')';
- }
-
- $h = sprintf('#%02x%02x%02x', $r, $g, $b);
-
- // Converting hex color to short notation (e.g. #003399 to #039)
- if ($h[1] === $h[2] && $h[3] === $h[4] && $h[5] === $h[6]) {
- $h = '#' . $h[1] . $h[3] . $h[5];
- }
-
- return $h;
-
- case 'number':
- return round($value[1], $this->numberPrecision) . $value[2];
-
- case 'string':
- return $value[1] . $this->compileStringContent($value) . $value[1];
-
- case 'function':
- $args = ! empty($value[2]) ? $this->compileValue($value[2]) : '';
-
- return "$value[1]($args)";
-
- case 'list':
- $value = $this->extractInterpolation($value);
-
- if ($value[0] !== 'list') {
- return $this->compileValue($value);
- }
-
- list(, $delim, $items) = $value;
-
- $filtered = array();
-
- foreach ($items as $item) {
- if ($item[0] === 'null') {
- continue;
- }
-
- $filtered[] = $this->compileValue($item);
- }
-
- return implode("$delim ", $filtered);
-
- case 'map':
- $keys = $value[1];
- $values = $value[2];
- $filtered = array();
-
- for ($i = 0, $s = count($keys); $i < $s; $i++) {
- $filtered[$this->compileValue($keys[$i])] = $this->compileValue($values[$i]);
- }
-
- array_walk($filtered, function (&$value, $key) {
- $value = $key . ': ' . $value;
- });
-
- return '(' . implode(', ', $filtered) . ')';
-
- case 'interpolated':
- // node created by extractInterpolation
- list(, $interpolate, $left, $right) = $value;
- list(,, $whiteLeft, $whiteRight) = $interpolate;
-
- $left = count($left[2]) > 0 ?
- $this->compileValue($left) . $whiteLeft : '';
-
- $right = count($right[2]) > 0 ?
- $whiteRight . $this->compileValue($right) : '';
-
- return $left . $this->compileValue($interpolate) . $right;
-
- case 'interpolate':
- // raw parse node
- list(, $exp) = $value;
-
- // strip quotes if it's a string
- $reduced = $this->reduce($exp);
- switch ($reduced[0]) {
- case 'string':
- $reduced = array('keyword', $this->compileStringContent($reduced));
- break;
-
- case 'null':
- $reduced = array('keyword', '');
- }
-
- return $this->compileValue($reduced);
-
- case 'null':
- return 'null';
-
- default:
- $this->throwError("unknown value type: $type");
- }
- }
-
- /**
- * Flatten list
- *
- * @param array $list
- *
- * @return string
- */
- protected function flattenList($list)
- {
- return $this->compileValue($list);
- }
-
- /**
- * Compile string content
- *
- * @param array $string
- *
- * @return string
- */
- protected function compileStringContent($string)
- {
- $parts = array();
-
- foreach ($string[2] as $part) {
- if (is_array($part)) {
- $parts[] = $this->compileValue($part);
- } else {
- $parts[] = $part;
- }
- }
-
- return implode($parts);
- }
-
- /**
- * Extract interpolation; it doesn't need to be recursive, compileValue will handle that
- *
- * @param array $list
- *
- * @return array
- */
- protected function extractInterpolation($list)
- {
- $items = $list[2];
-
- foreach ($items as $i => $item) {
- if ($item[0] === 'interpolate') {
- $before = array('list', $list[1], array_slice($items, 0, $i));
- $after = array('list', $list[1], array_slice($items, $i + 1));
-
- return array('interpolated', $item, $before, $after);
- }
- }
-
- return $list;
- }
-
- /**
- * Find the final set of selectors
- *
- * @param \stdClass $env
- *
- * @return array
- */
- protected function multiplySelectors($env)
- {
- $envs = array();
-
- while (null !== $env) {
- if (! empty($env->selectors)) {
- $envs[] = $env;
- }
-
- $env = $env->parent;
- };
-
- $selectors = array();
- $parentSelectors = array(array());
-
- while ($env = array_pop($envs)) {
- $selectors = array();
-
- foreach ($env->selectors as $selector) {
- foreach ($parentSelectors as $parent) {
- $selectors[] = $this->joinSelectors($parent, $selector);
- }
- }
-
- $parentSelectors = $selectors;
- }
-
- return $selectors;
- }
-
- /**
- * Join selectors; looks for & to replace, or append parent before child
- *
- * @param array $parent
- * @param array $child
- *
- * @return array
- */
- protected function joinSelectors($parent, $child)
- {
- $setSelf = false;
- $out = array();
-
- foreach ($child as $part) {
- $newPart = array();
-
- foreach ($part as $p) {
- if ($p === self::$selfSelector) {
- $setSelf = true;
-
- foreach ($parent as $i => $parentPart) {
- if ($i > 0) {
- $out[] = $newPart;
- $newPart = array();
- }
-
- foreach ($parentPart as $pp) {
- $newPart[] = $pp;
- }
- }
- } else {
- $newPart[] = $p;
- }
- }
-
- $out[] = $newPart;
- }
-
- return $setSelf ? $out : array_merge($parent, $child);
- }
-
- /**
- * Multiply media
- *
- * @param \stdClass $env
- * @param array $childQueries
- *
- * @return array
- */
- protected function multiplyMedia($env, $childQueries = null)
- {
- if (! isset($env) ||
- ! empty($env->block->type) && $env->block->type !== 'media'
- ) {
- return $childQueries;
- }
-
- // plain old block, skip
- if (empty($env->block->type)) {
- return $this->multiplyMedia($env->parent, $childQueries);
- }
-
- $parentQueries = $env->block->queryList;
- if ($childQueries === null) {
- $childQueries = $parentQueries;
- } else {
- $originalQueries = $childQueries;
- $childQueries = array();
-
- foreach ($parentQueries as $parentQuery) {
- foreach ($originalQueries as $childQuery) {
- $childQueries []= array_merge($parentQuery, $childQuery);
- }
- }
- }
-
- return $this->multiplyMedia($env->parent, $childQueries);
- }
-
- /**
- * Push environment
- *
- * @param \stdClass $block
- *
- * @return \stdClass
- */
- protected function pushEnv($block = null)
- {
- $env = new \stdClass;
- $env->parent = $this->env;
- $env->store = array();
- $env->block = $block;
- $env->depth = isset($this->env->depth) ? $this->env->depth + 1 : 0;
-
- $this->env = $env;
-
- return $env;
- }
-
- /**
- * Pop environment
- */
- protected function popEnv()
- {
- $env = $this->env;
- $this->env = $this->env->parent;
-
- return $env;
- }
-
- /**
- * Get store environment
- *
- * @return \stdClass
- */
- protected function getStoreEnv()
- {
- return isset($this->storeEnv) ? $this->storeEnv : $this->env;
- }
-
- /**
- * Set variable
- *
- * @param string $name
- * @param mixed $value
- * @param boolean $shadow
- * @param \stdClass $env
- */
- protected function set($name, $value, $shadow = false, $env = null)
- {
- $name = $this->normalizeName($name);
-
- if ($shadow) {
- $this->setRaw($name, $value, $env);
- } else {
- $this->setExisting($name, $value, $env);
- }
- }
-
- /**
- * Set existing variable
- *
- * @param string $name
- * @param mixed $value
- * @param \stdClass $env
- */
- protected function setExisting($name, $value, $env = null)
- {
- if (! isset($env)) {
- $env = $this->getStoreEnv();
- }
-
- $storeEnv = $env;
-
- $hasNamespace = $name[0] === '^' || $name[0] === '@' || $name[0] === '%';
-
- for (;;) {
- if (array_key_exists($name, $env->store)) {
- break;
- }
-
- if (! $hasNamespace && isset($env->marker)) {
- $env = $storeEnv;
- break;
- }
-
- if (! isset($env->parent)) {
- $env = $storeEnv;
- break;
- }
-
- $env = $env->parent;
- }
-
- $env->store[$name] = $value;
- }
-
- /**
- * Set raw variable
- *
- * @param string $name
- * @param mixed $value
- * @param \stdClass $env
- */
- protected function setRaw($name, $value, $env = null)
- {
- if (! isset($env)) {
- $env = $this->getStoreEnv();
- }
-
- $env->store[$name] = $value;
- }
-
- /**
- * Get variable
- *
- * @api
- *
- * @param string $name
- * @param boolean $shouldThrow
- * @param \stdClass $env
- *
- * @return mixed
- */
- public function get($name, $shouldThrow = true, $env = null)
- {
- $name = $this->normalizeName($name);
-
- if (! isset($env)) {
- $env = $this->getStoreEnv();
- }
-
- $hasNamespace = $name[0] === '^' || $name[0] === '@' || $name[0] === '%';
-
- for (;;) {
- if (array_key_exists($name, $env->store)) {
- return $env->store[$name];
- }
-
- if (! $hasNamespace && isset($env->marker)) {
- $env = $this->rootEnv;
- continue;
- }
-
- if (! isset($env->parent)) {
- break;
- }
-
- $env = $env->parent;
- }
-
- if ($shouldThrow) {
- $this->throwError("Undefined variable \$$name");
- }
-
- // found nothing
- }
-
- /**
- * Has variable?
- *
- * @param string $name
- * @param \stdClass $env
- *
- * @return boolean
- */
- protected function has($name, $env = null)
- {
- return $this->get($name, false, $env) !== null;
- }
-
- /**
- * Inject variables
- *
- * @param array $args
- */
- protected function injectVariables(array $args)
- {
- if (empty($args)) {
- return;
- }
-
- $parser = new Parser(__METHOD__, false);
-
- foreach ($args as $name => $strValue) {
- if ($name[0] === '$') {
- $name = substr($name, 1);
- }
-
- if (! $parser->parseValue($strValue, $value)) {
- $value = $this->coerceValue($strValue);
- }
-
- $this->set($name, $value);
- }
- }
-
- /**
- * Set variables
- *
- * @api
- *
- * @param array $variables
- */
- public function setVariables(array $variables)
- {
- $this->registeredVars = array_merge($this->registeredVars, $variables);
- }
-
- /**
- * Unset variable
- *
- * @api
- *
- * @param string $name
- */
- public function unsetVariable($name)
- {
- unset($this->registeredVars[$name]);
- }
-
- /**
- * Returns list of parsed files
- *
- * @api
- *
- * @return array
- */
- public function getParsedFiles()
- {
- return $this->parsedFiles;
- }
-
- /**
- * Add import path
- *
- * @api
- *
- * @param string $path
- */
- public function addImportPath($path)
- {
- if (! in_array($path, $this->importPaths)) {
- $this->importPaths[] = $path;
- }
- }
-
- /**
- * Set import paths
- *
- * @api
- *
- * @param string|array $path
- */
- public function setImportPaths($path)
- {
- $this->importPaths = (array)$path;
- }
-
- /**
- * Set number precision
- *
- * @api
- *
- * @param integer $numberPrecision
- */
- public function setNumberPrecision($numberPrecision)
- {
- $this->numberPrecision = $numberPrecision;
- }
-
- /**
- * Set formatter
- *
- * @api
- *
- * @param string $formatterName
- */
- public function setFormatter($formatterName)
- {
- $this->formatter = $formatterName;
- }
-
- /**
- * Set line number style
- *
- * @api
- *
- * @param string $lineNumberStyle
- */
- public function setLineNumberStyle($lineNumberStyle)
- {
- $this->lineNumberStyle = $lineNumberStyle;
- }
-
- /**
- * Register function
- *
- * @api
- *
- * @param string $name
- * @param callable $func
- */
- public function registerFunction($name, $func)
- {
- $this->userFunctions[$this->normalizeName($name)] = $func;
- }
-
- /**
- * Unregister function
- *
- * @api
- *
- * @param string $name
- */
- public function unregisterFunction($name)
- {
- unset($this->userFunctions[$this->normalizeName($name)]);
- }
-
- /**
- * Import file
- *
- * @param string $path
- * @param array $out
- */
- protected function importFile($path, $out)
- {
- // see if tree is cached
- $realPath = realpath($path);
-
- if (isset($this->importCache[$realPath])) {
- $this->handleImportLoop($realPath);
-
- $tree = $this->importCache[$realPath];
- } else {
- $code = file_get_contents($path);
- $parser = new Parser($path, false);
- $tree = $parser->parse($code);
-
- $this->parsedFiles[$realPath] = filemtime($path);
- $this->importCache[$realPath] = $tree;
- }
-
- $pi = pathinfo($path);
- array_unshift($this->importPaths, $pi['dirname']);
- $this->compileChildren($tree->children, $out);
- array_shift($this->importPaths);
- }
-
- /**
- * Return the file path for an import url if it exists
- *
- * @api
- *
- * @param string $url
- *
- * @return string|null
- */
- public function findImport($url)
- {
- $urls = array();
-
- // for "normal" scss imports (ignore vanilla css and external requests)
- if (! preg_match('/\.css$|^https?:\/\//', $url)) {
- // try both normal and the _partial filename
- $urls = array($url, preg_replace('/[^\/]+$/', '_\0', $url));
- }
-
- foreach ($this->importPaths as $dir) {
- if (is_string($dir)) {
- // check urls for normal import paths
- foreach ($urls as $full) {
- $full = $dir .
- (! empty($dir) && substr($dir, -1) !== '/' ? '/' : '') .
- $full;
-
- if ($this->fileExists($file = $full . '.scss') ||
- $this->fileExists($file = $full)
- ) {
- return $file;
- }
- }
- } elseif (is_callable($dir)) {
- // check custom callback for import path
- $file = call_user_func($dir, $url, $this);
-
- if ($file !== null) {
- return $file;
- }
- }
- }
-
- return null;
- }
-
- /**
- * Throw error (exception)
- *
- * @api
- *
- * @param string $msg Message with optional sprintf()-style vararg parameters
- *
- * @throws \Exception
- */
- public function throwError($msg)
- {
- if (func_num_args() > 1) {
- $msg = call_user_func_array('sprintf', func_get_args());
- }
-
- if ($this->sourcePos >= 0 && isset($this->sourceParser)) {
- $this->sourceParser->throwParseError($msg, $this->sourcePos);
- }
-
- throw new \Exception($msg);
- }
-
- /**
- * Handle import loop
- *
- * @param string $name
- *
- * @throws \Exception
- */
- private function handleImportLoop($name)
- {
- for ($env = $this->env; $env; $env = $env->parent) {
- $file = $env->block->sourceParser->getSourceName();
-
- if (realpath($file) === $name) {
- $this->throwError(
- 'An @import loop has been found: %s imports %s',
- $this->env->block->sourceParser->getSourceName(),
- basename($file)
- );
- }
- }
- }
-
- /**
- * Does file exist?
- *
- * @param string $name
- *
- * @return boolean
- */
- protected function fileExists($name)
- {
- return is_file($name);
- }
-
- /**
- * Call built-in and registered (PHP) functions
- *
- * @param string $name
- * @param array $args
- * @param array $returnValue
- *
- * @return boolean Returns true if returnValue is set; otherwise, false
- */
- protected function callBuiltin($name, $args, &$returnValue)
- {
- // try a lib function
- $name = $this->normalizeName($name);
-
- if (isset($this->userFunctions[$name])) {
- // see if we can find a user function
- $fn = $this->userFunctions[$name];
-
- foreach ($args as &$val) {
- $val = $this->reduce($val[1], true);
- }
-
- $returnValue = call_user_func($fn, $args, $this);
- } else {
- $f = $this->getBuiltinFunction($name);
-
- if (is_callable($f)) {
- $libName = $f[1];
-
- $prototype = isset(self::$$libName) ? self::$$libName : null;
- $sorted = $this->sortArgs($prototype, $args);
-
- foreach ($sorted as &$val) {
- $val = $this->reduce($val, true);
- }
-
- $returnValue = call_user_func($f, $sorted, $this);
- }
- }
-
- if (isset($returnValue)) {
- $returnValue = $this->coerceValue($returnValue);
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Get built-in function
- *
- * @param string $name Normalized name
- *
- * @return array
- */
- protected function getBuiltinFunction($name)
- {
- $libName = 'lib' . preg_replace_callback(
- '/_(.)/',
- function ($m) {
- return ucfirst($m[1]);
- },
- ucfirst($name)
- );
-
- return array($this, $libName);
- }
-
- /**
- * Sorts keyword arguments
- *
- * @todo Merge with applyArguments()?
- *
- * @param array $prototype
- * @param array $args
- *
- * @return array
- */
- protected function sortArgs($prototype, $args)
- {
- $keyArgs = array();
- $posArgs = array();
-
- foreach ($args as $arg) {
- list($key, $value) = $arg;
-
- $key = $key[1];
-
- if (empty($key)) {
- $posArgs[] = $value;
- } else {
- $keyArgs[$key] = $value;
- }
- }
-
- if (! isset($prototype)) {
- return $posArgs;
- }
-
- $finalArgs = array();
-
- foreach ($prototype as $i => $names) {
- if (isset($posArgs[$i])) {
- $finalArgs[] = $posArgs[$i];
- continue;
- }
-
- $set = false;
-
- foreach ((array)$names as $name) {
- if (isset($keyArgs[$name])) {
- $finalArgs[] = $keyArgs[$name];
- $set = true;
- break;
- }
- }
-
- if (! $set) {
- $finalArgs[] = null;
- }
- }
-
- return $finalArgs;
- }
-
- /**
- * Apply argument values per definition
- *
- * @param array $argDef
- * @param array $argValues
- *
- * @throws \Exception
- */
- protected function applyArguments($argDef, $argValues)
- {
- $storeEnv = $this->getStoreEnv();
-
- $env = new \stdClass;
- $env->store = $storeEnv->store;
-
- $hasVariable = false;
- $args = array();
-
- foreach ($argDef as $i => $arg) {
- list($name, $default, $isVariable) = $argDef[$i];
-
- $args[$name] = array($i, $name, $default, $isVariable);
- $hasVariable |= $isVariable;
- }
-
- $keywordArgs = array();
- $deferredKeywordArgs = array();
- $remaining = array();
-
- // assign the keyword args
- foreach ((array) $argValues as $arg) {
- if (! empty($arg[0])) {
- if (! isset($args[$arg[0][1]])) {
- if ($hasVariable) {
- $deferredKeywordArgs[$arg[0][1]] = $arg[1];
- } else {
- $this->throwError("Mixin or function doesn't have an argument named $%s.", $arg[0][1]);
- }
- } elseif ($args[$arg[0][1]][0] < count($remaining)) {
- $this->throwError("The argument $%s was passed both by position and by name.", $arg[0][1]);
- } else {
- $keywordArgs[$arg[0][1]] = $arg[1];
- }
- } elseif (count($keywordArgs)) {
- $this->throwError('Positional arguments must come before keyword arguments.');
- } elseif ($arg[2] === true) {
- $val = $this->reduce($arg[1], true);
-
- if ($val[0] === 'list') {
- foreach ($val[2] as $name => $item) {
- if (! is_numeric($name)) {
- $keywordArgs[$name] = $item;
- } else {
- $remaining[] = $item;
- }
- }
- } else {
- $remaining[] = $val;
- }
- } else {
- $remaining[] = $arg[1];
- }
- }
-
- foreach ($args as $arg) {
- list($i, $name, $default, $isVariable) = $arg;
-
- if ($isVariable) {
- $val = array('list', ',', array(), $isVariable);
-
- for ($count = count($remaining); $i < $count; $i++) {
- $val[2][] = $remaining[$i];
- }
-
- foreach ($deferredKeywordArgs as $itemName => $item) {
- $val[2][$itemName] = $item;
- }
- } elseif (isset($remaining[$i])) {
- $val = $remaining[$i];
- } elseif (isset($keywordArgs[$name])) {
- $val = $keywordArgs[$name];
- } elseif (! empty($default)) {
- continue;
- } else {
- $this->throwError("Missing argument $name");
- }
-
- $this->set($name, $this->reduce($val, true), true, $env);
- }
-
- $storeEnv->store = $env->store;
-
- foreach ($args as $arg) {
- list($i, $name, $default, $isVariable) = $arg;
-
- if ($isVariable || isset($remaining[$i]) || isset($keywordArgs[$name]) || empty($default)) {
- continue;
- }
-
- $this->set($name, $this->reduce($default, true), true);
- }
- }
-
- /**
- * Coerce a php value into a scss one
- *
- * @param mixed $value
- *
- * @return array
- */
- private function coerceValue($value)
- {
- if (is_array($value)) {
- return $value;
- }
-
- if (is_bool($value)) {
- return $value ? self::$true : self::$false;
- }
-
- if ($value === null) {
- $value = self::$null;
- }
-
- if (is_numeric($value)) {
- return array('number', $value, '');
- }
-
- if ($value === '') {
- return self::$emptyString;
- }
-
- return array('keyword', $value);
- }
-
- /**
- * Coerce unit on number to be normalized
- *
- * @param array $number
- * @param string $unit
- *
- * @return array
- */
- protected function coerceUnit($number, $unit)
- {
- list(, $value, $baseUnit) = $number;
-
- if (isset(self::$unitTable[$baseUnit][$unit])) {
- $value = $value * self::$unitTable[$baseUnit][$unit];
- }
-
- return array('number', $value, $unit);
- }
-
- /**
- * Coerce something to map
- *
- * @param array $item
- *
- * @return array
- */
- protected function coerceMap($item)
- {
- if ($item[0] === 'map') {
- return $item;
- }
-
- if ($item === self::$emptyList) {
- return self::$emptyMap;
- }
-
- return array('map', array($item), array(self::$null));
- }
-
- /**
- * Coerce something to list
- *
- * @param array $item
- *
- * @return array
- */
- protected function coerceList($item, $delim = ',')
- {
- if (isset($item) && $item[0] === 'list') {
- return $item;
- }
-
- if (isset($item) && $item[0] === 'map') {
- $keys = $item[1];
- $values = $item[2];
- $list = array();
-
- for ($i = 0, $s = count($keys); $i < $s; $i++) {
- $key = $keys[$i];
- $value = $values[$i];
-
- $list[] = array('list', '', array(array('keyword', $this->compileValue($key)), $value));
- }
-
- return array('list', ',', $list);
- }
-
- return array('list', $delim, ! isset($item) ? array(): array($item));
- }
-
- /**
- * Coerce color for expression
- *
- * @param array $value
- *
- * @return array|null
- */
- protected function coerceForExpression($value)
- {
- if ($color = $this->coerceColor($value)) {
- return $color;
- }
-
- return $value;
- }
-
- /**
- * Coerce value to color
- *
- * @param array $value
- *
- * @return array|null
- */
- protected function coerceColor($value)
- {
- switch ($value[0]) {
- case 'color':
- return $value;
-
- case 'keyword':
- $name = strtolower($value[1]);
-
- if (isset(Colors::$cssColors[$name])) {
- $rgba = explode(',', Colors::$cssColors[$name]);
-
- return isset($rgba[3])
- ? array('color', (int) $rgba[0], (int) $rgba[1], (int) $rgba[2], (int) $rgba[3])
- : array('color', (int) $rgba[0], (int) $rgba[1], (int) $rgba[2]);
- }
-
- return null;
- }
-
- return null;
- }
-
- /**
- * Coerce value to string
- *
- * @param array $value
- *
- * @return array|null
- */
- protected function coerceString($value)
- {
- if ($value[0] === 'string') {
- return $value;
- }
-
- return array('string', '', array($this->compileValue($value)));
- }
-
- /**
- * Coerce value to a percentage
- *
- * @param array $value
- *
- * @return integer|float
- */
- protected function coercePercent($value)
- {
- if ($value[0] === 'number') {
- if ($value[2] === '%') {
- return $value[1] / 100;
- }
-
- return $value[1];
- }
-
- return 0;
- }
-
- /**
- * Assert value is a map
- *
- * @api
- *
- * @param array $value
- *
- * @return array
- *
- * @throws \Exception
- */
- public function assertMap($value)
- {
- $value = $this->coerceMap($value);
-
- if ($value[0] !== 'map') {
- $this->throwError('expecting map');
- }
-
- return $value;
- }
-
- /**
- * Assert value is a list
- *
- * @api
- *
- * @param array $value
- *
- * @return array
- *
- * @throws \Exception
- */
- public function assertList($value)
- {
- if ($value[0] !== 'list') {
- $this->throwError('expecting list');
- }
-
- return $value;
- }
-
- /**
- * Assert value is a color
- *
- * @api
- *
- * @param array $value
- *
- * @return array
- *
- * @throws \Exception
- */
- public function assertColor($value)
- {
- if ($color = $this->coerceColor($value)) {
- return $color;
- }
-
- $this->throwError('expecting color');
- }
-
- /**
- * Assert value is a number
- *
- * @api
- *
- * @param array $value
- *
- * @return integer|float
- *
- * @throws \Exception
- */
- public function assertNumber($value)
- {
- if ($value[0] !== 'number') {
- $this->throwError('expecting number');
- }
-
- return $value[1];
- }
-
- /**
- * Make sure a color's components don't go out of bounds
- *
- * @param array $c
- *
- * @return array
- */
- protected function fixColor($c)
- {
- foreach (range(1, 3) as $i) {
- if ($c[$i] < 0) {
- $c[$i] = 0;
- }
-
- if ($c[$i] > 255) {
- $c[$i] = 255;
- }
- }
-
- return $c;
- }
-
- /**
- * Convert RGB to HSL
- *
- * @api
- *
- * @param integer $red
- * @param integer $green
- * @param integer $blue
- *
- * @return array
- */
- public function toHSL($red, $green, $blue)
- {
- $min = min($red, $green, $blue);
- $max = max($red, $green, $blue);
-
- $l = $min + $max;
- $d = $max - $min;
-
- if ((int) $d === 0) {
- $h = $s = 0;
- } else {
- if ($l < 255) {
- $s = $d / $l;
- } else {
- $s = $d / (510 - $l);
- }
-
- if ($red == $max) {
- $h = 60 * ($green - $blue) / $d;
- } elseif ($green == $max) {
- $h = 60 * ($blue - $red) / $d + 120;
- } elseif ($blue == $max) {
- $h = 60 * ($red - $green) / $d + 240;
- }
- }
-
- return array('hsl', fmod($h, 360), $s * 100, $l / 5.1);
- }
-
- /**
- * Hue to RGB helper
- *
- * @param float $m1
- * @param float $m2
- * @param float $h
- *
- * @return float
- */
- private function hueToRGB($m1, $m2, $h)
- {
- if ($h < 0) {
- $h += 1;
- } elseif ($h > 1) {
- $h -= 1;
- }
-
- if ($h * 6 < 1) {
- return $m1 + ($m2 - $m1) * $h * 6;
- }
-
- if ($h * 2 < 1) {
- return $m2;
- }
-
- if ($h * 3 < 2) {
- return $m1 + ($m2 - $m1) * (2/3 - $h) * 6;
- }
-
- return $m1;
- }
-
- /**
- * Convert HSL to RGB
- *
- * @api
- *
- * @param integer $hue H from 0 to 360
- * @param integer $saturation S from 0 to 100
- * @param integer $lightness L from 0 to 100
- *
- * @return array
- */
- public function toRGB($hue, $saturation, $lightness)
- {
- if ($hue < 0) {
- $hue += 360;
- }
-
- $h = $hue / 360;
- $s = min(100, max(0, $saturation)) / 100;
- $l = min(100, max(0, $lightness)) / 100;
-
- $m2 = $l <= 0.5 ? $l * ($s + 1) : $l + $s - $l * $s;
- $m1 = $l * 2 - $m2;
-
- $r = $this->hueToRGB($m1, $m2, $h + 1/3) * 255;
- $g = $this->hueToRGB($m1, $m2, $h) * 255;
- $b = $this->hueToRGB($m1, $m2, $h - 1/3) * 255;
-
- $out = array('color', $r, $g, $b);
-
- return $out;
- }
-
- // Built in functions
-
- protected static $libIf = array('condition', 'if-true', 'if-false');
- protected function libIf($args)
- {
- list($cond, $t, $f) = $args;
-
- if (! $this->isTruthy($cond)) {
- return $f;
- }
-
- return $t;
- }
-
- protected static $libIndex = array('list', 'value');
- protected function libIndex($args)
- {
- list($list, $value) = $args;
-
- if ($value[0] === 'map') {
- return self::$null;
- }
-
- if ($list[0] === 'map') {
- $list = $this->coerceList($list, ' ');
- }
-
- if ($list[0] !== 'list') {
- return self::$null;
- }
-
- $values = array();
-
- foreach ($list[2] as $item) {
- $values[] = $this->normalizeValue($item);
- }
-
- $key = array_search($this->normalizeValue($value), $values);
-
- return false === $key ? self::$null : $key + 1;
- }
-
- protected static $libRgb = array('red', 'green', 'blue');
- protected function libRgb($args)
- {
- list($r, $g, $b) = $args;
-
- return array('color', $r[1], $g[1], $b[1]);
- }
-
- protected static $libRgba = array(
- array('red', 'color'),
- 'green', 'blue', 'alpha');
- protected function libRgba($args)
- {
- if ($color = $this->coerceColor($args[0])) {
- // workaround https://github.com/facebook/hhvm/issues/5457
- reset($args);
-
- $num = ! isset($args[1]) ? $args[3] : $args[1];
- $alpha = $this->assertNumber($num);
- $color[4] = $alpha;
-
- return $color;
- }
-
- list($r, $g, $b, $a) = $args;
-
- return array('color', $r[1], $g[1], $b[1], $a[1]);
- }
-
- // helper function for adjust_color, change_color, and scale_color
- protected function alterColor($args, $fn)
- {
- $color = $this->assertColor($args[0]);
-
- // workaround https://github.com/facebook/hhvm/issues/5457
- reset($args);
-
- foreach (array(1, 2, 3, 7) as $i) {
- if (isset($args[$i])) {
- $val = $this->assertNumber($args[$i]);
- $ii = $i === 7 ? 4 : $i; // alpha
- $color[$ii] = call_user_func($fn, isset($color[$ii]) ? $color[$ii] : 0, $val, $i);
- }
- }
-
- if (isset($args[4]) || isset($args[5]) || isset($args[6])) {
- $hsl = $this->toHSL($color[1], $color[2], $color[3]);
-
- foreach (array(4, 5, 6) as $i) {
- if (isset($args[$i])) {
- $val = $this->assertNumber($args[$i]);
- $hsl[$i - 3] = call_user_func($fn, $hsl[$i - 3], $val, $i);
- }
- }
-
- $rgb = $this->toRGB($hsl[1], $hsl[2], $hsl[3]);
-
- if (isset($color[4])) {
- $rgb[4] = $color[4];
- }
-
- $color = $rgb;
- }
-
- return $color;
- }
-
- protected static $libAdjustColor = array(
- 'color', 'red', 'green', 'blue',
- 'hue', 'saturation', 'lightness', 'alpha'
- );
- protected function libAdjustColor($args)
- {
- return $this->alterColor($args, function ($base, $alter, $i) {
- return $base + $alter;
- });
- }
-
- protected static $libChangeColor = array(
- 'color', 'red', 'green', 'blue',
- 'hue', 'saturation', 'lightness', 'alpha'
- );
- protected function libChangeColor($args)
- {
- return $this->alterColor($args, function ($base, $alter, $i) {
- return $alter;
- });
- }
-
- protected static $libScaleColor = array(
- 'color', 'red', 'green', 'blue',
- 'hue', 'saturation', 'lightness', 'alpha'
- );
- protected function libScaleColor($args)
- {
- return $this->alterColor($args, function ($base, $scale, $i) {
- // 1, 2, 3 - rgb
- // 4, 5, 6 - hsl
- // 7 - a
- switch ($i) {
- case 1:
- case 2:
- case 3:
- $max = 255;
- break;
-
- case 4:
- $max = 360;
- break;
-
- case 7:
- $max = 1;
- break;
-
- default:
- $max = 100;
- }
-
- $scale = $scale / 100;
-
- if ($scale < 0) {
- return $base * $scale + $base;
- }
-
- return ($max - $base) * $scale + $base;
- });
- }
-
- protected static $libIeHexStr = array('color');
- protected function libIeHexStr($args)
- {
- $color = $this->coerceColor($args[0]);
- $color[4] = isset($color[4]) ? round(255*$color[4]) : 255;
-
- return sprintf('#%02X%02X%02X%02X', $color[4], $color[1], $color[2], $color[3]);
- }
-
- protected static $libRed = array('color');
- protected function libRed($args)
- {
- $color = $this->coerceColor($args[0]);
-
- return $color[1];
- }
-
- protected static $libGreen = array('color');
- protected function libGreen($args)
- {
- $color = $this->coerceColor($args[0]);
-
- return $color[2];
- }
-
- protected static $libBlue = array('color');
- protected function libBlue($args)
- {
- $color = $this->coerceColor($args[0]);
-
- return $color[3];
- }
-
- protected static $libAlpha = array('color');
- protected function libAlpha($args)
- {
- if ($color = $this->coerceColor($args[0])) {
- return isset($color[4]) ? $color[4] : 1;
- }
-
- // this might be the IE function, so return value unchanged
- return null;
- }
-
- protected static $libOpacity = array('color');
- protected function libOpacity($args)
- {
- $value = $args[0];
-
- if ($value[0] === 'number') {
- return null;
- }
-
- return $this->libAlpha($args);
- }
-
- // mix two colors
- protected static $libMix = array('color-1', 'color-2', 'weight');
- protected function libMix($args)
- {
- list($first, $second, $weight) = $args;
-
- $first = $this->assertColor($first);
- $second = $this->assertColor($second);
-
- if (! isset($weight)) {
- $weight = 0.5;
- } else {
- $weight = $this->coercePercent($weight);
- }
-
- $firstAlpha = isset($first[4]) ? $first[4] : 1;
- $secondAlpha = isset($second[4]) ? $second[4] : 1;
-
- $w = $weight * 2 - 1;
- $a = $firstAlpha - $secondAlpha;
-
- $w1 = (($w * $a === -1 ? $w : ($w + $a) / (1 + $w * $a)) + 1) / 2.0;
- $w2 = 1.0 - $w1;
-
- $new = array('color',
- $w1 * $first[1] + $w2 * $second[1],
- $w1 * $first[2] + $w2 * $second[2],
- $w1 * $first[3] + $w2 * $second[3],
- );
-
- if ($firstAlpha != 1.0 || $secondAlpha != 1.0) {
- $new[] = $firstAlpha * $weight + $secondAlpha * ($weight - 1);
- }
-
- return $this->fixColor($new);
- }
-
- protected static $libHsl = array('hue', 'saturation', 'lightness');
- protected function libHsl($args)
- {
- list($h, $s, $l) = $args;
-
- return $this->toRGB($h[1], $s[1], $l[1]);
- }
-
- protected static $libHsla = array('hue', 'saturation',
- 'lightness', 'alpha');
- protected function libHsla($args)
- {
- list($h, $s, $l, $a) = $args;
-
- $color = $this->toRGB($h[1], $s[1], $l[1]);
- $color[4] = $a[1];
-
- return $color;
- }
-
- protected static $libHue = array('color');
- protected function libHue($args)
- {
- $color = $this->assertColor($args[0]);
- $hsl = $this->toHSL($color[1], $color[2], $color[3]);
-
- return array('number', $hsl[1], 'deg');
- }
-
- protected static $libSaturation = array('color');
- protected function libSaturation($args)
- {
- $color = $this->assertColor($args[0]);
- $hsl = $this->toHSL($color[1], $color[2], $color[3]);
-
- return array('number', $hsl[2], '%');
- }
-
- protected static $libLightness = array('color');
- protected function libLightness($args)
- {
- $color = $this->assertColor($args[0]);
- $hsl = $this->toHSL($color[1], $color[2], $color[3]);
-
- return array('number', $hsl[3], '%');
- }
-
- protected function adjustHsl($color, $idx, $amount)
- {
- $hsl = $this->toHSL($color[1], $color[2], $color[3]);
- $hsl[$idx] += $amount;
- $out = $this->toRGB($hsl[1], $hsl[2], $hsl[3]);
-
- if (isset($color[4])) {
- $out[4] = $color[4];
- }
-
- return $out;
- }
-
- protected static $libAdjustHue = array('color', 'degrees');
- protected function libAdjustHue($args)
- {
- $color = $this->assertColor($args[0]);
- $degrees = $this->assertNumber($args[1]);
-
- return $this->adjustHsl($color, 1, $degrees);
- }
-
- protected static $libLighten = array('color', 'amount');
- protected function libLighten($args)
- {
- $color = $this->assertColor($args[0]);
- $amount = Util::checkRange('amount', new Range(0, 100), $args[1], '%');
-
- return $this->adjustHsl($color, 3, $amount);
- }
-
- protected static $libDarken = array('color', 'amount');
- protected function libDarken($args)
- {
- $color = $this->assertColor($args[0]);
- $amount = Util::checkRange('amount', new Range(0, 100), $args[1], '%');
-
- return $this->adjustHsl($color, 3, -$amount);
- }
-
- protected static $libSaturate = array('color', 'amount');
- protected function libSaturate($args)
- {
- $value = $args[0];
-
- if ($value[0] === 'number') {
- return null;
- }
-
- $color = $this->assertColor($value);
- $amount = 100*$this->coercePercent($args[1]);
-
- return $this->adjustHsl($color, 2, $amount);
- }
-
- protected static $libDesaturate = array('color', 'amount');
- protected function libDesaturate($args)
- {
- $color = $this->assertColor($args[0]);
- $amount = 100*$this->coercePercent($args[1]);
-
- return $this->adjustHsl($color, 2, -$amount);
- }
-
- protected static $libGrayscale = array('color');
- protected function libGrayscale($args)
- {
- $value = $args[0];
-
- if ($value[0] === 'number') {
- return null;
- }
-
- return $this->adjustHsl($this->assertColor($value), 2, -100);
- }
-
- protected static $libComplement = array('color');
- protected function libComplement($args)
- {
- return $this->adjustHsl($this->assertColor($args[0]), 1, 180);
- }
-
- protected static $libInvert = array('color');
- protected function libInvert($args)
- {
- $value = $args[0];
-
- if ($value[0] === 'number') {
- return null;
- }
-
- $color = $this->assertColor($value);
- $color[1] = 255 - $color[1];
- $color[2] = 255 - $color[2];
- $color[3] = 255 - $color[3];
-
- return $color;
- }
-
- // increases opacity by amount
- protected static $libOpacify = array('color', 'amount');
- protected function libOpacify($args)
- {
- $color = $this->assertColor($args[0]);
- $amount = $this->coercePercent($args[1]);
-
- $color[4] = (isset($color[4]) ? $color[4] : 1) + $amount;
- $color[4] = min(1, max(0, $color[4]));
-
- return $color;
- }
-
- protected static $libFadeIn = array('color', 'amount');
- protected function libFadeIn($args)
- {
- return $this->libOpacify($args);
- }
-
- // decreases opacity by amount
- protected static $libTransparentize = array('color', 'amount');
- protected function libTransparentize($args)
- {
- $color = $this->assertColor($args[0]);
- $amount = $this->coercePercent($args[1]);
-
- $color[4] = (isset($color[4]) ? $color[4] : 1) - $amount;
- $color[4] = min(1, max(0, $color[4]));
-
- return $color;
- }
-
- protected static $libFadeOut = array('color', 'amount');
- protected function libFadeOut($args)
- {
- return $this->libTransparentize($args);
- }
-
- protected static $libUnquote = array('string');
- protected function libUnquote($args)
- {
- $str = $args[0];
-
- if ($str[0] === 'string') {
- $str[1] = '';
- }
-
- return $str;
- }
-
- protected static $libQuote = array('string');
- protected function libQuote($args)
- {
- $value = $args[0];
-
- if ($value[0] === 'string' && ! empty($value[1])) {
- return $value;
- }
-
- return array('string', '"', array($value));
- }
-
- protected static $libPercentage = array('value');
- protected function libPercentage($args)
- {
- return array('number',
- $this->coercePercent($args[0]) * 100,
- '%');
- }
-
- protected static $libRound = array('value');
- protected function libRound($args)
- {
- $num = $args[0];
- $num[1] = round($num[1]);
-
- return $num;
- }
-
- protected static $libFloor = array('value');
- protected function libFloor($args)
- {
- $num = $args[0];
- $num[1] = floor($num[1]);
-
- return $num;
- }
-
- protected static $libCeil = array('value');
- protected function libCeil($args)
- {
- $num = $args[0];
- $num[1] = ceil($num[1]);
-
- return $num;
- }
-
- protected static $libAbs = array('value');
- protected function libAbs($args)
- {
- $num = $args[0];
- $num[1] = abs($num[1]);
-
- return $num;
- }
-
- protected function libMin($args)
- {
- $numbers = $this->getNormalizedNumbers($args);
- $min = null;
-
- foreach ($numbers as $key => $number) {
- if (null === $min || $number[1] <= $min[1]) {
- $min = array($key, $number[1]);
- }
- }
-
- return $args[$min[0]];
- }
-
- protected function libMax($args)
- {
- $numbers = $this->getNormalizedNumbers($args);
- $max = null;
-
- foreach ($numbers as $key => $number) {
- if (null === $max || $number[1] >= $max[1]) {
- $max = array($key, $number[1]);
- }
- }
-
- return $args[$max[0]];
- }
-
- /**
- * Helper to normalize args containing numbers
- *
- * @param array $args
- *
- * @return array
- */
- protected function getNormalizedNumbers($args)
- {
- $unit = null;
- $originalUnit = null;
- $numbers = array();
-
- foreach ($args as $key => $item) {
- if ('number' !== $item[0]) {
- $this->throwError('%s is not a number', $item[0]);
- }
-
- $number = $this->normalizeNumber($item);
-
- if (null === $unit) {
- $unit = $number[2];
- $originalUnit = $item[2];
- } elseif ($unit !== $number[2]) {
- $this->throwError('Incompatible units: "%s" and "%s".', $originalUnit, $item[2]);
- }
-
- $numbers[$key] = $number;
- }
-
- return $numbers;
- }
-
- protected static $libLength = array('list');
- protected function libLength($args)
- {
- $list = $this->coerceList($args[0]);
-
- return count($list[2]);
- }
-
- // TODO: need a way to declare this built-in as varargs
- //protected static $libListSeparator = array('list...');
- protected function libListSeparator($args)
- {
- if (count($args) > 1) {
- return 'comma';
- }
-
- $list = $this->coerceList($args[0]);
-
- if (count($list[2]) <= 1) {
- return 'space';
- }
-
- if ($list[1] === ',') {
- return 'comma';
- }
-
- return 'space';
- }
-
- protected static $libNth = array('list', 'n');
- protected function libNth($args)
- {
- $list = $this->coerceList($args[0]);
- $n = $this->assertNumber($args[1]) - 1;
-
- return isset($list[2][$n]) ? $list[2][$n] : self::$defaultValue;
- }
-
- protected static $libSetNth = array('list', 'n', 'value');
- protected function libSetNth($args)
- {
- $list = $this->coerceList($args[0]);
- $n = $this->assertNumber($args[1]) - 1;
-
- if (! isset($list[2][$n])) {
- $this->throwError('Invalid argument for "n"');
- }
-
- $list[2][$n] = $args[2];
-
- return $list;
- }
-
- protected static $libMapGet = array('map', 'key');
- protected function libMapGet($args)
- {
- $map = $this->assertMap($args[0]);
-
- $key = $this->compileStringContent($this->coerceString($args[1]));
-
- for ($i = count($map[1]) - 1; $i >= 0; $i--) {
- if ($key === $this->compileValue($map[1][$i])) {
- return $map[2][$i];
- }
- }
-
- return self::$null;
- }
-
- protected static $libMapKeys = array('map');
- protected function libMapKeys($args)
- {
- $map = $this->assertMap($args[0]);
-
- $keys = $map[1];
-
- return array('list', ',', $keys);
- }
-
- protected static $libMapValues = array('map');
- protected function libMapValues($args)
- {
- $map = $this->assertMap($args[0]);
-
- $values = $map[2];
-
- return array('list', ',', $values);
- }
-
- protected static $libMapRemove = array('map', 'key');
- protected function libMapRemove($args)
- {
- $map = $this->assertMap($args[0]);
-
- $key = $this->compileStringContent($this->coerceString($args[1]));
-
- for ($i = count($map[1]) - 1; $i >= 0; $i--) {
- if ($key === $this->compileValue($map[1][$i])) {
- array_splice($map[1], $i, 1);
- array_splice($map[2], $i, 1);
- }
- }
-
- return $map;
- }
-
- protected static $libMapHasKey = array('map', 'key');
- protected function libMapHasKey($args)
- {
- $map = $this->assertMap($args[0]);
-
- $key = $this->compileStringContent($this->coerceString($args[1]));
-
- for ($i = count($map[1]) - 1; $i >= 0; $i--) {
- if ($key === $this->compileValue($map[1][$i])) {
- return self::$true;
- }
- }
-
- return self::$false;
- }
-
- protected static $libMapMerge = array('map-1', 'map-2');
- protected function libMapMerge($args)
- {
- $map1 = $this->assertMap($args[0]);
- $map2 = $this->assertMap($args[1]);
-
- return array('map', array_merge($map1[1], $map2[1]), array_merge($map1[2], $map2[2]));
- }
-
- protected function listSeparatorForJoin($list1, $sep)
- {
- if (! isset($sep)) {
- return $list1[1];
- }
-
- switch ($this->compileValue($sep)) {
- case 'comma':
- return ',';
-
- case 'space':
- return '';
-
- default:
- return $list1[1];
- }
- }
-
- protected static $libJoin = array('list1', 'list2', 'separator');
- protected function libJoin($args)
- {
- list($list1, $list2, $sep) = $args;
-
- $list1 = $this->coerceList($list1, ' ');
- $list2 = $this->coerceList($list2, ' ');
- $sep = $this->listSeparatorForJoin($list1, $sep);
-
- return array('list', $sep, array_merge($list1[2], $list2[2]));
- }
-
- protected static $libAppend = array('list', 'val', 'separator');
- protected function libAppend($args)
- {
- list($list1, $value, $sep) = $args;
-
- $list1 = $this->coerceList($list1, ' ');
- $sep = $this->listSeparatorForJoin($list1, $sep);
-
- return array('list', $sep, array_merge($list1[2], array($value)));
- }
-
- protected function libZip($args)
- {
- foreach ($args as $arg) {
- $this->assertList($arg);
- }
-
- $lists = array();
- $firstList = array_shift($args);
-
- foreach ($firstList[2] as $key => $item) {
- $list = array('list', '', array($item));
-
- foreach ($args as $arg) {
- if (isset($arg[2][$key])) {
- $list[2][] = $arg[2][$key];
- } else {
- break 2;
- }
- }
- $lists[] = $list;
- }
-
- return array('list', ',', $lists);
- }
-
- protected static $libTypeOf = array('value');
- protected function libTypeOf($args)
- {
- $value = $args[0];
-
- switch ($value[0]) {
- case 'keyword':
- if ($value === self::$true || $value === self::$false) {
- return 'bool';
- }
-
- if ($this->coerceColor($value)) {
- return 'color';
- }
-
- // fall-thru
- case 'function':
- return 'string';
-
- case 'list':
- if (isset($value[3]) && $value[3]) {
- return 'arglist';
- }
-
- // fall-thru
- default:
- return $value[0];
- }
- }
-
- protected static $libUnit = array('number');
- protected function libUnit($args)
- {
- $num = $args[0];
-
- if ($num[0] === 'number') {
- return array('string', '"', array($num[2]));
- }
-
- return '';
- }
-
- protected static $libUnitless = array('number');
- protected function libUnitless($args)
- {
- $value = $args[0];
-
- return $value[0] === 'number' && empty($value[2]);
- }
-
- protected static $libComparable = array('number-1', 'number-2');
- protected function libComparable($args)
- {
- list($number1, $number2) = $args;
-
- if (! isset($number1[0]) || $number1[0] !== 'number' || ! isset($number2[0]) || $number2[0] !== 'number') {
- $this->throwError('Invalid argument(s) for "comparable"');
- }
-
- $number1 = $this->normalizeNumber($number1);
- $number2 = $this->normalizeNumber($number2);
-
- return $number1[2] === $number2[2] || $number1[2] === '' || $number2[2] === '';
- }
-
- protected static $libStrIndex = array('string', 'substring');
- protected function libStrIndex($args)
- {
- $string = $this->coerceString($args[0]);
- $stringContent = $this->compileStringContent($string);
-
- $substring = $this->coerceString($args[1]);
- $substringContent = $this->compileStringContent($substring);
-
- $result = strpos($stringContent, $substringContent);
-
- return $result === false ? self::$null : array('number', $result + 1, '');
- }
-
- protected static $libStrInsert = array('string', 'insert', 'index');
- protected function libStrInsert($args)
- {
- $string = $this->coerceString($args[0]);
- $stringContent = $this->compileStringContent($string);
-
- $insert = $this->coerceString($args[1]);
- $insertContent = $this->compileStringContent($insert);
-
- list(, $index) = $args[2];
-
- $string[2] = array(substr_replace($stringContent, $insertContent, $index - 1, 0));
-
- return $string;
- }
-
- protected static $libStrLength = array('string');
- protected function libStrLength($args)
- {
- $string = $this->coerceString($args[0]);
- $stringContent = $this->compileStringContent($string);
-
- return array('number', strlen($stringContent), '');
- }
-
- protected static $libStrSlice = array('string', 'start-at', 'end-at');
- protected function libStrSlice($args)
- {
- if ($args[2][1] == 0) {
- return self::$emptyString;
- }
-
- $string = $this->coerceString($args[0]);
- $stringContent = $this->compileStringContent($string);
-
- $start = (int) $args[1][1] ?: 1;
- $end = (int) $args[2][1];
-
- $string[2] = array(substr($stringContent, $start - 1, $end < 0 ? $end : $end - $start + 1));
-
- return $string;
- }
-
- protected static $libToLowerCase = array('string');
- protected function libToLowerCase($args)
- {
- $string = $this->coerceString($args[0]);
- $stringContent = $this->compileStringContent($string);
-
- $string[2] = array(mb_strtolower($stringContent));
-
- return $string;
- }
-
- protected static $libToUpperCase = array('string');
- protected function libToUpperCase($args)
- {
- $string = $this->coerceString($args[0]);
- $stringContent = $this->compileStringContent($string);
-
- $string[2] = array(mb_strtoupper($stringContent));
-
- return $string;
- }
-
- protected static $libFeatureExists = array('feature');
- protected function libFeatureExists($args)
- {
- /*
- * The following features not not (yet) supported:
- * - global-variable-shadowing
- * - extend-selector-pseudoclass
- * - units-level-3
- * - at-error
- */
- return self::$false;
- }
-
- protected static $libFunctionExists = array('name');
- protected function libFunctionExists($args)
- {
- $string = $this->coerceString($args[0]);
- $name = $this->compileStringContent($string);
-
- // user defined functions
- if ($this->has(self::$namespaces['function'] . $name)) {
- return self::$true;
- }
-
- $name = $this->normalizeName($name);
-
- if (isset($this->userFunctions[$name])) {
- return self::$true;
- }
-
- // built-in functions
- $f = $this->getBuiltinFunction($name);
-
- return $this->toBool(is_callable($f));
- }
-
- protected static $libGlobalVariableExists = array('name');
- protected function libGlobalVariableExists($args)
- {
- $string = $this->coerceString($args[0]);
- $name = $this->compileStringContent($string);
-
- return $this->has($name, $this->rootEnv) ? self::$true : self::$false;
- }
-
- protected static $libMixinExists = array('name');
- protected function libMixinExists($args)
- {
- $string = $this->coerceString($args[0]);
- $name = $this->compileStringContent($string);
-
- return $this->has(self::$namespaces['mixin'] . $name) ? self::$true : self::$false;
- }
-
- protected static $libVariableExists = array('name');
- protected function libVariableExists($args)
- {
- $string = $this->coerceString($args[0]);
- $name = $this->compileStringContent($string);
-
- return $this->has($name) ? self::$true : self::$false;
- }
-
- /**
- * Workaround IE7's content counter bug.
- *
- * @param array $args
- */
- protected function libCounter($args)
- {
- $list = array_map(array($this, 'compileValue'), $args);
-
- return array('string', '', array('counter(' . implode(',', $list) . ')'));
- }
-
- protected function libRandom($args)
- {
- if (isset($args[0])) {
- $n = $this->assertNumber($args[0]);
-
- if ($n < 1) {
- $this->throwError("limit must be greater than or equal to 1");
- }
-
- return array('number', mt_rand(1, $n), '');
- }
-
- return array('number', mt_rand(1, mt_getrandmax()), '');
- }
-
- protected function libUniqueId()
- {
- static $id;
-
- if (! isset($id)) {
- $id = mt_rand(0, pow(36, 8));
- }
-
- $id += mt_rand(0, 10) + 1;
-
- return array('string', '', array('u' . str_pad(base_convert($id, 10, 36), 8, '0', STR_PAD_LEFT)));
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp;
-
-/**
- * SCSS base formatter
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-abstract class Formatter
-{
- /**
- * @var integer
- */
- public $indentLevel;
-
- /**
- * @var string
- */
- public $indentChar;
-
- /**
- * @var string
- */
- public $break;
-
- /**
- * @var string
- */
- public $open;
-
- /**
- * @var string
- */
- public $close;
-
- /**
- * @var string
- */
- public $tagSeparator;
-
- /**
- * @var string
- */
- public $assignSeparator;
-
- abstract public function __construct();
-
- /**
- * Return indentation (whitespace)
- *
- * @param integer $n
- *
- * @return string
- */
- protected function indentStr($n = 0)
- {
- return str_repeat($this->indentChar, max($this->indentLevel + $n, 0));
- }
-
- /**
- * Return property assignment
- *
- * @param string $name
- * @param mixed $value
- *
- * @return string
- */
- public function property($name, $value)
- {
- return rtrim($name) . $this->assignSeparator . $value . ';';
- }
-
- /**
- * Strip semi-colon appended by property(); it's a separator, not a terminator
- *
- * @param array $lines
- */
- public function stripSemicolon(&$lines)
- {
- }
-
- /**
- * Output lines inside a block
- *
- * @param string $inner
- * @param \stdClass $block
- */
- protected function blockLines($inner, $block)
- {
- $glue = $this->break . $inner;
- echo $inner . implode($glue, $block->lines);
-
- if (! empty($block->children)) {
- echo $this->break;
- }
- }
-
- /**
- * Output non-empty block
- *
- * @param \stdClass $block
- */
- protected function block($block)
- {
- if (empty($block->lines) && empty($block->children)) {
- return;
- }
-
- $inner = $pre = $this->indentStr();
-
- if (! empty($block->selectors)) {
- echo $pre
- . implode($this->tagSeparator, $block->selectors)
- . $this->open . $this->break;
-
- $this->indentLevel++;
-
- $inner = $this->indentStr();
- }
-
- if (! empty($block->lines)) {
- $this->blockLines($inner, $block);
- }
-
- foreach ($block->children as $child) {
- $this->block($child);
- }
-
- if (! empty($block->selectors)) {
- $this->indentLevel--;
-
- if (empty($block->children)) {
- echo $this->break;
- }
-
- echo $pre . $this->close . $this->break;
- }
- }
-
- /**
- * Entry point to formatting a block
- *
- * @param \stdClass $block An abstract syntax tree
- *
- * @return string
- */
- public function format($block)
- {
- ob_start();
-
- $this->block($block);
-
- $out = ob_get_clean();
-
- return $out;
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp\Formatter;
-
-use Leafo\ScssPhp\Formatter;
-
-/**
- * SCSS compact formatter
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Compact extends Formatter
-{
- /**
- * {@inheritdoc}
- */
- public function __construct()
- {
- $this->indentLevel = 0;
- $this->indentChar = '';
- $this->break = '';
- $this->open = ' {';
- $this->close = "}\n\n";
- $this->tagSeparator = ',';
- $this->assignSeparator = ':';
- }
-
- /**
- * {@inheritdoc}
- */
- public function indentStr($n = 0)
- {
- return ' ';
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp\Formatter;
-
-use Leafo\ScssPhp\Formatter;
-
-/**
- * SCSS compressed formatter
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Compressed extends Formatter
-{
- /**
- * {@inheritdoc}
- */
- public function __construct()
- {
- $this->indentLevel = 0;
- $this->indentChar = ' ';
- $this->break = '';
- $this->open = '{';
- $this->close = '}';
- $this->tagSeparator = ',';
- $this->assignSeparator = ':';
- }
-
- /**
- * {@inheritdoc}
- */
- public function indentStr($n = 0)
- {
- return '';
- }
-
- /**
- * {@inheritdoc}
- */
- public function stripSemicolon(&$lines)
- {
- if (($count = count($lines))
- && substr($lines[$count - 1], -1) === ';'
- ) {
- $lines[$count - 1] = substr($lines[$count - 1], 0, -1);
- }
- }
-
- /**
- * {@inheritdoc}
- */
- public function blockLines($inner, $block)
- {
- $glue = $this->break . $inner;
-
- foreach ($block->lines as $index => $line) {
- if (substr($line, 0, 2) === '/*' && substr($line, 2, 1) !== '!') {
- unset($block->lines[$index]);
- } elseif (substr($line, 0, 3) === '/*!') {
- $block->lines[$index] = '/*' . substr($line, 3);
- }
- }
-
- echo $inner . implode($glue, $block->lines);
-
- if (! empty($block->children)) {
- echo $this->break;
- }
- }
-
- /**
- * {@inherit}
- */
- public function format($block)
- {
- return parent::format($block);
-
- // TODO: we need to fix the 2 "compressed" tests where the "close" is applied
- return trim(str_replace(';}', '}', parent::format($block)));
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp\Formatter;
-
-use Leafo\ScssPhp\Formatter;
-
-/**
- * SCSS crunched formatter
- *
- * @author Anthon Pang <anthon.pang@gmail.com>
- */
-class Crunched extends Formatter
-{
- /**
- * {@inheritdoc}
- */
- public function __construct()
- {
- $this->indentLevel = 0;
- $this->indentChar = ' ';
- $this->break = '';
- $this->open = '{';
- $this->close = '}';
- $this->tagSeparator = ',';
- $this->assignSeparator = ':';
- }
-
- /**
- * {@inheritdoc}
- */
- public function indentStr($n = 0)
- {
- return '';
- }
-
- /**
- * {@inheritdoc}
- */
- public function stripSemicolon(&$lines)
- {
- if (($count = count($lines))
- && substr($lines[$count - 1], -1) === ';'
- ) {
- $lines[$count - 1] = substr($lines[$count - 1], 0, -1);
- }
- }
-
- /**
- * {@inheritdoc}
- */
- public function blockLines($inner, $block)
- {
- $glue = $this->break . $inner;
-
- foreach ($block->lines as $index => $line) {
- if (substr($line, 0, 2) === '/*') {
- unset($block->lines[$index]);
- }
- }
-
- echo $inner . implode($glue, $block->lines);
-
- if (! empty($block->children)) {
- echo $this->break;
- }
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp\Formatter;
-
-use Leafo\ScssPhp\Formatter;
-
-/**
- * SCSS expanded formatter
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Expanded extends Formatter
-{
- /**
- * {@inheritdoc}
- */
- public function __construct()
- {
- $this->indentLevel = 0;
- $this->indentChar = ' ';
- $this->break = "\n";
- $this->open = ' {';
- $this->close = '}';
- $this->tagSeparator = ', ';
- $this->assignSeparator = ': ';
- }
-
- /**
- * {@inheritdoc}
- */
- protected function blockLines($inner, $block)
- {
- $glue = $this->break . $inner;
-
- foreach ($block->lines as $index => $line) {
- if (substr($line, 0, 2) === '/*') {
- $block->lines[$index] = preg_replace('/(\r|\n)+/', $glue, $line);
- }
- }
-
- echo $inner . implode($glue, $block->lines);
-
- if (empty($block->selectors) || ! empty($block->children)) {
- echo $this->break;
- }
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp\Formatter;
-
-use Leafo\ScssPhp\Formatter;
-
-/**
- * SCSS nested formatter
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Nested extends Formatter
-{
- /**
- * {@inheritdoc}
- */
- public function __construct()
- {
- $this->indentLevel = 0;
- $this->indentChar = ' ';
- $this->break = "\n";
- $this->open = ' {';
- $this->close = ' }';
- $this->tagSeparator = ', ';
- $this->assignSeparator = ': ';
- }
-
- /**
- * Adjust the depths of all children, depth first
- *
- * @param \stdClass $block
- */
- public function adjustAllChildren($block)
- {
- // flatten empty nested blocks
- $children = array();
- foreach ($block->children as $i => $child) {
- if (empty($child->lines) && empty($child->children)) {
- if (isset($block->children[$i + 1])) {
- $block->children[$i + 1]->depth = $child->depth;
- }
- continue;
- }
- $children[] = $child;
- }
-
- $count = count($children);
- for ($i = 0; $i < $count; $i++) {
- $depth = $children[$i]->depth;
- $j = $i + 1;
- if (isset($children[$j]) && $depth < $children[$j]->depth) {
- $childDepth = $children[$j]->depth;
- for (; $j < $count; $j++) {
- if ($depth < $children[$j]->depth && $childDepth >= $children[$j]->depth) {
- $children[$j]->depth = $depth + 1;
- }
- }
- }
- }
-
- $block->children = $children;
-
- // make relative to parent
- foreach ($block->children as $child) {
- $this->adjustAllChildren($child);
- $child->depth = $child->depth - $block->depth;
- }
- }
-
- /**
- * {@inheritdoc}
- */
- protected function blockLines($inner, $block)
- {
- $glue = $this->break . $inner;
-
- foreach ($block->lines as $index => $line) {
- if (substr($line, 0, 2) === '/*') {
- $block->lines[$index] = preg_replace('/(\r|\n)+/', $glue, $line);
- }
- }
-
- echo $inner . implode($glue, $block->lines);
-
- if (! empty($block->children)) {
- echo $this->break;
- }
- }
-
- /**
- * {@inheritdoc}
- */
- protected function block($block)
- {
- if ($block->type === 'root') {
- $this->adjustAllChildren($block);
- }
-
- $inner = $pre = $this->indentStr($block->depth - 1);
- if (! empty($block->selectors)) {
- echo $pre .
- implode($this->tagSeparator, $block->selectors) .
- $this->open . $this->break;
- $this->indentLevel++;
- $inner = $this->indentStr($block->depth - 1);
- }
-
- if (! empty($block->lines)) {
- $this->blockLines($inner, $block);
- }
-
- foreach ($block->children as $i => $child) {
- $this->block($child);
-
- if ($i < count($block->children) - 1) {
- echo $this->break;
-
- if (isset($block->children[$i + 1])) {
- $next = $block->children[$i + 1];
- if ($next->depth === max($block->depth, 1) && $child->depth >= $next->depth) {
- echo $this->break;
- }
- }
- }
- }
-
- if (! empty($block->selectors)) {
- $this->indentLevel--;
- echo $this->close;
- }
-
- if ($block->type === 'root') {
- echo $this->break;
- }
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp;
-
-use Leafo\ScssPhp\Compiler;
-
-/**
- * SCSS parser
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Parser
-{
- const SOURCE_POSITION = -1;
- const SOURCE_PARSER = -2;
-
- /**
- * @var array
- */
- protected static $precedence = array(
- '=' => 0,
- 'or' => 1,
- 'and' => 2,
- '==' => 3,
- '!=' => 3,
- '<=' => 4,
- '>=' => 4,
- '<' => 4,
- '>' => 4,
- '+' => 5,
- '-' => 5,
- '*' => 6,
- '/' => 6,
- '%' => 6,
- );
-
- /**
- * @var array
- */
- protected static $operators = array(
- '+',
- '-',
- '*',
- '/',
- '%',
- '==',
- '!=',
- '<=',
- '>=',
- '<',
- '>',
- 'and',
- 'or',
- );
-
- protected static $operatorStr;
- protected static $whitePattern;
- protected static $commentMulti;
-
- protected static $commentSingle = '//';
- protected static $commentMultiLeft = '/*';
- protected static $commentMultiRight = '*/';
-
- private $sourceName;
- private $rootParser;
- private $charset;
- private $count;
- private $env;
- private $inParens;
- private $eatWhiteDefault;
- private $buffer;
-
- /**
- * Constructor
- *
- * @param string $sourceName
- * @param boolean $rootParser
- */
- public function __construct($sourceName = null, $rootParser = true)
- {
- $this->sourceName = $sourceName;
- $this->rootParser = $rootParser;
- $this->charset = null;
-
- if (empty(self::$operatorStr)) {
- self::$operatorStr = $this->makeOperatorStr(self::$operators);
-
- $commentSingle = $this->pregQuote(self::$commentSingle);
- $commentMultiLeft = $this->pregQuote(self::$commentMultiLeft);
- $commentMultiRight = $this->pregQuote(self::$commentMultiRight);
- self::$commentMulti = $commentMultiLeft . '.*?' . $commentMultiRight;
- self::$whitePattern = '/' . $commentSingle . '[^\n]*\s*|(' . self::$commentMulti . ')\s*|\s+/Ais';
- }
- }
-
- /**
- * Make operator regex
- *
- * @param array $operators
- *
- * @return string
- */
- protected static function makeOperatorStr($operators)
- {
- return '('
- . implode('|', array_map(array('Leafo\ScssPhp\Parser', 'pregQuote'), $operators))
- . ')';
- }
-
- /**
- * Parser buffer
- *
- * @param string $buffer;
- *
- * @return \stdClass
- */
- public function parse($buffer)
- {
- $this->count = 0;
- $this->env = null;
- $this->inParens = false;
- $this->eatWhiteDefault = true;
- $this->buffer = $buffer;
-
- $this->pushBlock(null); // root block
-
- $this->whitespace();
- $this->pushBlock(null);
- $this->popBlock();
-
- while (false !== $this->parseChunk()) {
- ;
- }
-
- if ($this->count !== strlen($this->buffer)) {
- $this->throwParseError();
- }
-
- if (! empty($this->env->parent)) {
- $this->throwParseError('unclosed block');
- }
-
- if ($this->charset) {
- array_unshift($this->env->children, $this->charset);
- }
-
- $this->env->isRoot = true;
-
- return $this->env;
- }
-
- /**
- * Parse a value or value list
- *
- * @param string $buffer
- * @param string $out
- *
- * @return boolean
- */
- public function parseValue($buffer, &$out)
- {
- $this->count = 0;
- $this->env = null;
- $this->inParens = false;
- $this->eatWhiteDefault = true;
- $this->buffer = (string) $buffer;
-
- return $this->valueList($out);
- }
-
- /**
- * Parse a selector or selector list
- *
- * @param string $buffer
- * @param string $out
- *
- * @return boolean
- */
- public function parseSelector($buffer, &$out)
- {
- $this->count = 0;
- $this->env = null;
- $this->inParens = false;
- $this->eatWhiteDefault = true;
- $this->buffer = (string) $buffer;
-
- return $this->selectors($out);
- }
-
- /**
- * Parse a single chunk off the head of the buffer and append it to the
- * current parse environment.
- *
- * Returns false when the buffer is empty, or when there is an error.
- *
- * This function is called repeatedly until the entire document is
- * parsed.
- *
- * This parser is most similar to a recursive descent parser. Single
- * functions represent discrete grammatical rules for the language, and
- * they are able to capture the text that represents those rules.
- *
- * Consider the function Compiler::keyword(). (All parse functions are
- * structured the same.)
- *
- * The function takes a single reference argument. When calling the
- * function it will attempt to match a keyword on the head of the buffer.
- * If it is successful, it will place the keyword in the referenced
- * argument, advance the position in the buffer, and return true. If it
- * fails then it won't advance the buffer and it will return false.
- *
- * All of these parse functions are powered by Compiler::match(), which behaves
- * the same way, but takes a literal regular expression. Sometimes it is
- * more convenient to use match instead of creating a new function.
- *
- * Because of the format of the functions, to parse an entire string of
- * grammatical rules, you can chain them together using &&.
- *
- * But, if some of the rules in the chain succeed before one fails, then
- * the buffer position will be left at an invalid state. In order to
- * avoid this, Compiler::seek() is used to remember and set buffer positions.
- *
- * Before parsing a chain, use $s = $this->seek() to remember the current
- * position into $s. Then if a chain fails, use $this->seek($s) to
- * go back where we started.
- *
- * @return boolean
- */
- protected function parseChunk()
- {
- $s = $this->seek();
-
- // the directives
- if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] === '@') {
- if ($this->literal('@media') && $this->mediaQueryList($mediaQueryList) && $this->literal('{')) {
- $media = $this->pushSpecialBlock('media', $s);
- $media->queryList = $mediaQueryList[2];
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@mixin') &&
- $this->keyword($mixinName) &&
- ($this->argumentDef($args) || true) &&
- $this->literal('{')
- ) {
- $mixin = $this->pushSpecialBlock('mixin', $s);
- $mixin->name = $mixinName;
- $mixin->args = $args;
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@include') &&
- $this->keyword($mixinName) &&
- ($this->literal('(') &&
- ($this->argValues($argValues) || true) &&
- $this->literal(')') || true) &&
- ($this->end() ||
- $this->literal('{') && $hasBlock = true)
- ) {
- $child = array('include',
- $mixinName, isset($argValues) ? $argValues : null, null);
-
- if (! empty($hasBlock)) {
- $include = $this->pushSpecialBlock('include', $s);
- $include->child = $child;
- } else {
- $this->append($child, $s);
- }
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@import') &&
- $this->valueList($importPath) &&
- $this->end()
- ) {
- $this->append(array('import', $importPath), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@import') &&
- $this->url($importPath) &&
- $this->end()
- ) {
- $this->append(array('import', $importPath), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@extend') &&
- $this->selectors($selector) &&
- $this->end()
- ) {
- $this->append(array('extend', $selector), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@function') &&
- $this->keyword($fnName) &&
- $this->argumentDef($args) &&
- $this->literal('{')
- ) {
- $func = $this->pushSpecialBlock('function', $s);
- $func->name = $fnName;
- $func->args = $args;
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@return') && $this->valueList($retVal) && $this->end()) {
- $this->append(array('return', $retVal), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@each') &&
- $this->genericList($varNames, 'variable', ',', false) &&
- $this->literal('in') &&
- $this->valueList($list) &&
- $this->literal('{')
- ) {
- $each = $this->pushSpecialBlock('each', $s);
-
- foreach ($varNames[2] as $varName) {
- $each->vars[] = $varName[1];
- }
-
- $each->list = $list;
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@while') &&
- $this->expression($cond) &&
- $this->literal('{')
- ) {
- $while = $this->pushSpecialBlock('while', $s);
- $while->cond = $cond;
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@for') &&
- $this->variable($varName) &&
- $this->literal('from') &&
- $this->expression($start) &&
- ($this->literal('through') ||
- ($forUntil = true && $this->literal('to'))) &&
- $this->expression($end) &&
- $this->literal('{')
- ) {
- $for = $this->pushSpecialBlock('for', $s);
- $for->var = $varName[1];
- $for->start = $start;
- $for->end = $end;
- $for->until = isset($forUntil);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@if') && $this->valueList($cond) && $this->literal('{')) {
- $if = $this->pushSpecialBlock('if', $s);
- $if->cond = $cond;
- $if->cases = array();
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@debug') &&
- $this->valueList($value) &&
- $this->end()
- ) {
- $this->append(array('debug', $value), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@warn') &&
- $this->valueList($value) &&
- $this->end()
- ) {
- $this->append(array('warn', $value), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@error') &&
- $this->valueList($value) &&
- $this->end()
- ) {
- $this->append(array('error', $value), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('@content') && $this->end()) {
- $this->append(array('mixin_content'), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- $last = $this->last();
-
- if (isset($last) && $last[0] === 'if') {
- list(, $if) = $last;
-
- if ($this->literal('@else')) {
- if ($this->literal('{')) {
- $else = $this->pushSpecialBlock('else', $s);
- } elseif ($this->literal('if') && $this->valueList($cond) && $this->literal('{')) {
- $else = $this->pushSpecialBlock('elseif', $s);
- $else->cond = $cond;
- }
-
- if (isset($else)) {
- $else->dontAppend = true;
- $if->cases[] = $else;
-
- return true;
- }
- }
-
- $this->seek($s);
- }
-
- // only retain the first @charset directive encountered
- if ($this->literal('@charset') &&
- $this->valueList($charset) && $this->end()
- ) {
- if (! isset($this->charset)) {
- $statement = array('charset', $charset);
-
- $statement[self::SOURCE_POSITION] = $s;
-
- if (! $this->rootParser) {
- $statement[self::SOURCE_PARSER] = $this;
- }
-
- $this->charset = $statement;
- }
-
- return true;
- }
-
- $this->seek($s);
-
- // doesn't match built in directive, do generic one
- if ($this->literal('@', false) && $this->keyword($dirName) &&
- ($this->variable($dirValue) || $this->openString('{', $dirValue) || true) &&
- $this->literal('{')
- ) {
- $directive = $this->pushSpecialBlock('directive', $s);
- $directive->name = $dirName;
-
- if (isset($dirValue)) {
- $directive->value = $dirValue;
- }
-
- return true;
- }
-
- $this->seek($s);
-
- return false;
- }
-
- // property shortcut
- // captures most properties before having to parse a selector
- if ($this->keyword($name, false) &&
- $this->literal(': ') &&
- $this->valueList($value) &&
- $this->end()
- ) {
- $name = array('string', '', array($name));
- $this->append(array('assign', $name, $value), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- // variable assigns
- if ($this->variable($name) &&
- $this->literal(':') &&
- $this->valueList($value) && $this->end()
- ) {
- // check for '!flag'
- $assignmentFlag = $this->stripAssignmentFlag($value);
- $this->append(array('assign', $name, $value, $assignmentFlag), $s);
-
- return true;
- }
-
- $this->seek($s);
-
- // misc
- if ($this->literal('-->')) {
- return true;
- }
-
- // opening css block
- if ($this->selectors($selectors) && $this->literal('{')) {
- $b = $this->pushBlock($selectors, $s);
-
- return true;
- }
-
- $this->seek($s);
-
- // property assign, or nested assign
- if ($this->propertyName($name) && $this->literal(':')) {
- $foundSomething = false;
-
- if ($this->valueList($value)) {
- $this->append(array('assign', $name, $value), $s);
- $foundSomething = true;
- }
-
- if ($this->literal('{')) {
- $propBlock = $this->pushSpecialBlock('nestedprop', $s);
- $propBlock->prefix = $name;
- $foundSomething = true;
- } elseif ($foundSomething) {
- $foundSomething = $this->end();
- }
-
- if ($foundSomething) {
- return true;
- }
- }
-
- $this->seek($s);
-
- // closing a block
- if ($this->literal('}')) {
- $block = $this->popBlock();
-
- if (isset($block->type) && $block->type === 'include') {
- $include = $block->child;
- unset($block->child);
- $include[3] = $block;
- $this->append($include, $s);
- } elseif (empty($block->dontAppend)) {
- $type = isset($block->type) ? $block->type : 'block';
- $this->append(array($type, $block), $s);
- }
-
- return true;
- }
-
- // extra stuff
- if ($this->literal(';') ||
- $this->literal('<!--')
- ) {
- return true;
- }
-
- return false;
- }
-
- /**
- * Strip assignment flag from the list
- *
- * @param array $value
- *
- * @return string
- */
- protected function stripAssignmentFlag(&$value)
- {
- $token = &$value;
-
- for ($token = &$value; $token[0] === 'list' && ($s = count($token[2])); $token = &$lastNode) {
- $lastNode = &$token[2][$s - 1];
-
- if ($lastNode[0] === 'keyword' && in_array($lastNode[1], array('!default', '!global'))) {
- array_pop($token[2]);
-
- $token = $this->flattenList($token);
-
- return $lastNode[1];
- }
- }
-
- return false;
- }
-
- /**
- * Match literal string
- *
- * @param string $what
- * @param boolean $eatWhitespace
- *
- * @return boolean
- */
- protected function literal($what, $eatWhitespace = null)
- {
- if (! isset($eatWhitespace)) {
- $eatWhitespace = $this->eatWhiteDefault;
- }
-
- // shortcut on single letter
- if (! isset($what[1]) && isset($this->buffer[$this->count])) {
- if ($this->buffer[$this->count] === $what) {
- if (! $eatWhitespace) {
- $this->count++;
-
- return true;
- }
- // goes below...
- } else {
- return false;
- }
- }
-
- return $this->match($this->pregQuote($what), $m, $eatWhitespace);
- }
-
- /**
- * Push block onto parse tree
- *
- * @param array $selectors
- * @param integer $pos
- *
- * @return \stdClass
- */
- protected function pushBlock($selectors, $pos = 0)
- {
- $b = new \stdClass;
- $b->parent = $this->env; // not sure if we need this yet
-
- $b->sourcePosition = $pos;
- $b->sourceParser = $this;
- $b->selectors = $selectors;
- $b->comments = array();
-
- if (! $this->env) {
- $b->children = array();
- } elseif (empty($this->env->children)) {
- $this->env->children = $this->env->comments;
- $b->children = array();
- $this->env->comments = array();
- } else {
- $b->children = $this->env->comments;
- $this->env->comments = array();
- }
-
- $this->env = $b;
-
- return $b;
- }
-
- /**
- * Push special (named) block onto parse tree
- *
- * @param string $type
- * @param integer $pos
- *
- * @return \stdClass
- */
- protected function pushSpecialBlock($type, $pos)
- {
- $block = $this->pushBlock(null, $pos);
- $block->type = $type;
-
- return $block;
- }
-
- /**
- * Pop scope and return last block
- *
- * @return \stdClass
- *
- * @throws \Exception
- */
- protected function popBlock()
- {
- $block = $this->env;
-
- if (empty($block->parent)) {
- $this->throwParseError('unexpected }');
- }
-
- $this->env = $block->parent;
- unset($block->parent);
-
- $comments = $block->comments;
- if (count($comments)) {
- $this->env->comments = $comments;
- unset($block->comments);
- }
-
- return $block;
- }
-
- /**
- * Append comment to current block
- *
- * @param array $comment
- */
- protected function appendComment($comment)
- {
- $comment[1] = substr(preg_replace(array('/^\s+/m', '/^(.)/m'), array('', ' \1'), $comment[1]), 1);
-
- $this->env->comments[] = $comment;
- }
-
- /**
- * Append statement to current block
- *
- * @param array $statement
- * @param integer $pos
- */
- protected function append($statement, $pos = null)
- {
- if ($pos !== null) {
- $statement[self::SOURCE_POSITION] = $pos;
-
- if (! $this->rootParser) {
- $statement[self::SOURCE_PARSER] = $this;
- }
- }
-
- $this->env->children[] = $statement;
-
- $comments = $this->env->comments;
-
- if (count($comments)) {
- $this->env->children = array_merge($this->env->children, $comments);
- $this->env->comments = array();
- }
- }
-
- /**
- * Returns last child was appended
- *
- * @return array|null
- */
- protected function last()
- {
- $i = count($this->env->children) - 1;
-
- if (isset($this->env->children[$i])) {
- return $this->env->children[$i];
- }
- }
-
- /**
- * Parse media query list
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function mediaQueryList(&$out)
- {
- return $this->genericList($out, 'mediaQuery', ',', false);
- }
-
- /**
- * Parse media query
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function mediaQuery(&$out)
- {
- $s = $this->seek();
-
- $expressions = null;
- $parts = array();
-
- if (($this->literal('only') && ($only = true) || $this->literal('not') && ($not = true) || true) &&
- $this->mixedKeyword($mediaType)
- ) {
- $prop = array('mediaType');
-
- if (isset($only)) {
- $prop[] = array('keyword', 'only');
- }
-
- if (isset($not)) {
- $prop[] = array('keyword', 'not');
- }
-
- $media = array('list', '', array());
-
- foreach ((array)$mediaType as $type) {
- if (is_array($type)) {
- $media[2][] = $type;
- } else {
- $media[2][] = array('keyword', $type);
- }
- }
-
- $prop[] = $media;
- $parts[] = $prop;
- }
-
- if (empty($parts) || $this->literal('and')) {
- $this->genericList($expressions, 'mediaExpression', 'and', false);
-
- if (is_array($expressions)) {
- $parts = array_merge($parts, $expressions[2]);
- }
- }
-
- $out = $parts;
-
- return true;
- }
-
- /**
- * Parse media expression
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function mediaExpression(&$out)
- {
- $s = $this->seek();
- $value = null;
-
- if ($this->literal('(') &&
- $this->expression($feature) &&
- ($this->literal(':') && $this->expression($value) || true) &&
- $this->literal(')')
- ) {
- $out = array('mediaExp', $feature);
-
- if ($value) {
- $out[] = $value;
- }
-
- return true;
- }
-
- $this->seek($s);
-
- return false;
- }
-
- /**
- * Parse argument values
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function argValues(&$out)
- {
- if ($this->genericList($list, 'argValue', ',', false)) {
- $out = $list[2];
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse argument value
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function argValue(&$out)
- {
- $s = $this->seek();
-
- $keyword = null;
-
- if (! $this->variable($keyword) || ! $this->literal(':')) {
- $this->seek($s);
- $keyword = null;
- }
-
- if ($this->genericList($value, 'expression')) {
- $out = array($keyword, $value, false);
- $s = $this->seek();
-
- if ($this->literal('...')) {
- $out[2] = true;
- } else {
- $this->seek($s);
- }
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse list
- *
- * @param string $out
- *
- * @return boolean
- */
- protected function valueList(&$out)
- {
- return $this->genericList($out, 'spaceList', ',');
- }
-
- /**
- * Parse space list
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function spaceList(&$out)
- {
- return $this->genericList($out, 'expression');
- }
-
- /**
- * Parse generic list
- *
- * @param array $out
- * @param callable $parseItem
- * @param string $delim
- * @param boolean $flatten
- *
- * @return boolean
- */
- protected function genericList(&$out, $parseItem, $delim = '', $flatten = true)
- {
- $s = $this->seek();
- $items = array();
-
- while ($this->$parseItem($value)) {
- $items[] = $value;
-
- if ($delim) {
- if (! $this->literal($delim)) {
- break;
- }
- }
- }
-
- if (count($items) === 0) {
- $this->seek($s);
-
- return false;
- }
-
- if ($flatten && count($items) === 1) {
- $out = $items[0];
- } else {
- $out = array('list', $delim, $items);
- }
-
- return true;
- }
-
- /**
- * Parse expression
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function expression(&$out)
- {
- $s = $this->seek();
-
- if ($this->literal('(')) {
- if ($this->literal(')')) {
- $out = array('list', '', array());
-
- return true;
- }
-
- if ($this->valueList($out) && $this->literal(')') && $out[0] === 'list') {
- return true;
- }
-
- $this->seek($s);
-
- if ($this->map($out)) {
- return true;
- }
-
- $this->seek($s);
- }
-
- if ($this->value($lhs)) {
- $out = $this->expHelper($lhs, 0);
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse left-hand side of subexpression
- *
- * @param array $lhs
- * @param integer $minP
- *
- * @return array
- */
- protected function expHelper($lhs, $minP)
- {
- $opstr = self::$operatorStr;
-
- $ss = $this->seek();
- $whiteBefore = isset($this->buffer[$this->count - 1]) &&
- ctype_space($this->buffer[$this->count - 1]);
-
- while ($this->match($opstr, $m, false) && self::$precedence[$m[1]] >= $minP) {
- $whiteAfter = isset($this->buffer[$this->count]) &&
- ctype_space($this->buffer[$this->count]);
- $varAfter = isset($this->buffer[$this->count]) &&
- $this->buffer[$this->count] === '$';
-
- $this->whitespace();
-
- $op = $m[1];
-
- // don't turn negative numbers into expressions
- if ($op === '-' && $whiteBefore && ! $whiteAfter && ! $varAfter) {
- break;
- }
-
- if (! $this->value($rhs)) {
- break;
- }
-
- // peek and see if rhs belongs to next operator
- if ($this->peek($opstr, $next) && self::$precedence[$next[1]] > self::$precedence[$op]) {
- $rhs = $this->expHelper($rhs, self::$precedence[$next[1]]);
- }
-
- $lhs = array('exp', $op, $lhs, $rhs, $this->inParens, $whiteBefore, $whiteAfter);
- $ss = $this->seek();
- $whiteBefore = isset($this->buffer[$this->count - 1]) &&
- ctype_space($this->buffer[$this->count - 1]);
- }
-
- $this->seek($ss);
-
- return $lhs;
- }
-
- /**
- * Parse value
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function value(&$out)
- {
- $s = $this->seek();
-
- if ($this->literal('not', false) && $this->whitespace() && $this->value($inner)) {
- $out = array('unary', 'not', $inner, $this->inParens);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->literal('+') && $this->value($inner)) {
- $out = array('unary', '+', $inner, $this->inParens);
-
- return true;
- }
-
- $this->seek($s);
-
- // negation
- if ($this->literal('-', false) &&
- ($this->variable($inner) ||
- $this->unit($inner) ||
- $this->parenValue($inner))
- ) {
- $out = array('unary', '-', $inner, $this->inParens);
-
- return true;
- }
-
- $this->seek($s);
-
- if ($this->parenValue($out) ||
- $this->interpolation($out) ||
- $this->variable($out) ||
- $this->color($out) ||
- $this->unit($out) ||
- $this->string($out) ||
- $this->func($out) ||
- $this->progid($out)
- ) {
- return true;
- }
-
- if ($this->keyword($keyword)) {
- if ($keyword === 'null') {
- $out = array('null');
- } else {
- $out = array('keyword', $keyword);
- }
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse parenthesized value
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function parenValue(&$out)
- {
- $s = $this->seek();
-
- $inParens = $this->inParens;
-
- if ($this->literal('(')) {
- if ($this->literal(')')) {
- $out = array('list', '', array());
-
- return true;
- }
-
- $this->inParens = true;
-
- if ($this->expression($exp) && $this->literal(')')) {
- $out = $exp;
- $this->inParens = $inParens;
-
- return true;
- }
- }
-
- $this->inParens = $inParens;
- $this->seek($s);
-
- return false;
- }
-
- /**
- * Parse "progid:"
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function progid(&$out)
- {
- $s = $this->seek();
-
- if ($this->literal('progid:', false) &&
- $this->openString('(', $fn) &&
- $this->literal('(')
- ) {
- $this->openString(')', $args, '(');
-
- if ($this->literal(')')) {
- $out = array('string', '', array(
- 'progid:', $fn, '(', $args, ')'
- ));
-
- return true;
- }
- }
-
- $this->seek($s);
-
- return false;
- }
-
- /**
- * Parse function call
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function func(&$func)
- {
- $s = $this->seek();
-
- if ($this->keyword($name, false) &&
- $this->literal('(')
- ) {
- if ($name === 'alpha' && $this->argumentList($args)) {
- $func = array('function', $name, array('string', '', $args));
-
- return true;
- }
-
- if ($name !== 'expression' && ! preg_match('/^(-[a-z]+-)?calc$/', $name)) {
- $ss = $this->seek();
-
- if ($this->argValues($args) && $this->literal(')')) {
- $func = array('fncall', $name, $args);
-
- return true;
- }
-
- $this->seek($ss);
- }
-
- if (($this->openString(')', $str, '(') || true ) &&
- $this->literal(')')
- ) {
- $args = array();
-
- if (! empty($str)) {
- $args[] = array(null, array('string', '', array($str)));
- }
-
- $func = array('fncall', $name, $args);
-
- return true;
- }
- }
-
- $this->seek($s);
-
- return false;
- }
-
- /**
- * Parse function call argument list
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function argumentList(&$out)
- {
- $s = $this->seek();
- $this->literal('(');
-
- $args = array();
-
- while ($this->keyword($var)) {
- $ss = $this->seek();
-
- if ($this->literal('=') && $this->expression($exp)) {
- $args[] = array('string', '', array($var . '='));
- $arg = $exp;
- } else {
- break;
- }
-
- $args[] = $arg;
-
- if (! $this->literal(',')) {
- break;
- }
-
- $args[] = array('string', '', array(', '));
- }
-
- if (! $this->literal(')') || ! count($args)) {
- $this->seek($s);
-
- return false;
- }
-
- $out = $args;
-
- return true;
- }
-
- /**
- * Parse mixin/function definition argument list
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function argumentDef(&$out)
- {
- $s = $this->seek();
- $this->literal('(');
-
- $args = array();
-
- while ($this->variable($var)) {
- $arg = array($var[1], null, false);
-
- $ss = $this->seek();
-
- if ($this->literal(':') && $this->genericList($defaultVal, 'expression')) {
- $arg[1] = $defaultVal;
- } else {
- $this->seek($ss);
- }
-
- $ss = $this->seek();
-
- if ($this->literal('...')) {
- $sss = $this->seek();
-
- if (! $this->literal(')')) {
- $this->throwParseError('... has to be after the final argument');
- }
-
- $arg[2] = true;
- $this->seek($sss);
- } else {
- $this->seek($ss);
- }
-
- $args[] = $arg;
-
- if (! $this->literal(',')) {
- break;
- }
- }
-
- if (! $this->literal(')')) {
- $this->seek($s);
-
- return false;
- }
-
- $out = $args;
-
- return true;
- }
-
- /**
- * Parse map
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function map(&$out)
- {
- $s = $this->seek();
-
- $this->literal('(');
-
- $keys = array();
- $values = array();
-
- while ($this->genericList($key, 'expression') && $this->literal(':')
- && $this->genericList($value, 'expression')
- ) {
- $keys[] = $key;
- $values[] = $value;
-
- if (! $this->literal(',')) {
- break;
- }
- }
-
- if (! count($keys) || ! $this->literal(')')) {
- $this->seek($s);
-
- return false;
- }
-
- $out = array('map', $keys, $values);
-
- return true;
- }
-
- /**
- * Parse color
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function color(&$out)
- {
- $color = array('color');
-
- if ($this->match('(#([0-9a-f]{6})|#([0-9a-f]{3}))', $m)) {
- if (isset($m[3])) {
- $num = $m[3];
- $width = 16;
- } else {
- $num = $m[2];
- $width = 256;
- }
-
- $num = hexdec($num);
-
- foreach (array(3, 2, 1) as $i) {
- $t = $num % $width;
- $num /= $width;
-
- $color[$i] = $t * (256/$width) + $t * floor(16/$width);
- }
-
- $out = $color;
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse number with unit
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function unit(&$unit)
- {
- if ($this->match('([0-9]*(\.)?[0-9]+)([%a-zA-Z]+)?', $m)) {
- $unit = array('number', $m[1], empty($m[3]) ? '' : $m[3]);
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse string
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function string(&$out)
- {
- $s = $this->seek();
-
- if ($this->literal('"', false)) {
- $delim = '"';
- } elseif ($this->literal('\'', false)) {
- $delim = '\'';
- } else {
- return false;
- }
-
- $content = array();
- $oldWhite = $this->eatWhiteDefault;
- $this->eatWhiteDefault = false;
-
- while ($this->matchString($m, $delim)) {
- $content[] = $m[1];
-
- if ($m[2] === '#{') {
- $this->count -= strlen($m[2]);
-
- if ($this->interpolation($inter, false)) {
- $content[] = $inter;
- } else {
- $this->count += strlen($m[2]);
- $content[] = '#{'; // ignore it
- }
- } elseif ($m[2] === '\\') {
- $content[] = $m[2];
-
- if ($this->literal($delim, false)) {
- $content[] = $delim;
- }
- } else {
- $this->count -= strlen($delim);
- break; // delim
- }
- }
-
- $this->eatWhiteDefault = $oldWhite;
-
- if ($this->literal($delim)) {
- $out = array('string', $delim, $content);
-
- return true;
- }
-
- $this->seek($s);
-
- return false;
- }
-
- /**
- * Parse keyword or interpolation
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function mixedKeyword(&$out)
- {
- $s = $this->seek();
-
- $parts = array();
-
- $oldWhite = $this->eatWhiteDefault;
- $this->eatWhiteDefault = false;
-
- while (true) {
- if ($this->keyword($key)) {
- $parts[] = $key;
- continue;
- }
-
- if ($this->interpolation($inter)) {
- $parts[] = $inter;
- continue;
- }
-
- break;
- }
-
- $this->eatWhiteDefault = $oldWhite;
-
- if (count($parts) === 0) {
- return false;
- }
-
- if ($this->eatWhiteDefault) {
- $this->whitespace();
- }
-
- $out = $parts;
-
- return true;
- }
-
- /**
- * Parse an unbounded string stopped by $end
- *
- * @param string $end
- * @param array $out
- * @param string $nestingOpen
- *
- * @return boolean
- */
- protected function openString($end, &$out, $nestingOpen = null)
- {
- $oldWhite = $this->eatWhiteDefault;
- $this->eatWhiteDefault = false;
-
- $stop = array('\'', '"', '#{', $end);
- $stop = array_map(array($this, 'pregQuote'), $stop);
- $stop[] = self::$commentMulti;
-
- $patt = '(.*?)(' . implode('|', $stop) . ')';
-
- $nestingLevel = 0;
-
- $content = array();
-
- while ($this->match($patt, $m, false)) {
- if (isset($m[1]) && $m[1] !== '') {
- $content[] = $m[1];
-
- if ($nestingOpen) {
- $nestingLevel += substr_count($m[1], $nestingOpen);
- }
- }
-
- $tok = $m[2];
-
- $this->count-= strlen($tok);
-
- if ($tok === $end && ! $nestingLevel--) {
- break;
- }
-
- if (($tok === '\'' || $tok === '"') && $this->string($str)) {
- $content[] = $str;
- continue;
- }
-
- if ($tok === '#{' && $this->interpolation($inter)) {
- $content[] = $inter;
- continue;
- }
-
- $content[] = $tok;
- $this->count+= strlen($tok);
- }
-
- $this->eatWhiteDefault = $oldWhite;
-
- if (count($content) === 0) {
- return false;
- }
-
- // trim the end
- if (is_string(end($content))) {
- $content[count($content) - 1] = rtrim(end($content));
- }
-
- $out = array('string', '', $content);
-
- return true;
- }
-
- /**
- * Parser interpolation
- *
- * @param array $out
- * @param boolean $lookWhite save information about whitespace before and after
- *
- * @return boolean
- */
- protected function interpolation(&$out, $lookWhite = true)
- {
- $oldWhite = $this->eatWhiteDefault;
- $this->eatWhiteDefault = true;
-
- $s = $this->seek();
-
- if ($this->literal('#{') && $this->valueList($value) && $this->literal('}', false)) {
- // TODO: don't error if out of bounds
-
- if ($lookWhite) {
- $left = preg_match('/\s/', $this->buffer[$s - 1]) ? ' ' : '';
- $right = preg_match('/\s/', $this->buffer[$this->count]) ? ' ': '';
- } else {
- $left = $right = false;
- }
-
- $out = array('interpolate', $value, $left, $right);
- $this->eatWhiteDefault = $oldWhite;
-
- if ($this->eatWhiteDefault) {
- $this->whitespace();
- }
- return true;
- }
-
- $this->seek($s);
- $this->eatWhiteDefault = $oldWhite;
- return false;
- }
-
- /**
- * Parse property name (as an array of parts or a string)
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function propertyName(&$out)
- {
- $s = $this->seek();
- $parts = array();
-
- $oldWhite = $this->eatWhiteDefault;
- $this->eatWhiteDefault = false;
-
- while (true) {
- if ($this->interpolation($inter)) {
- $parts[] = $inter;
- } elseif ($this->keyword($text)) {
- $parts[] = $text;
- } elseif (count($parts) === 0 && $this->match('[:.#]', $m, false)) {
- // css hacks
- $parts[] = $m[0];
- } else {
- break;
- }
- }
-
- $this->eatWhiteDefault = $oldWhite;
-
- if (count($parts) === 0) {
- return false;
- }
-
- // match comment hack
- if (preg_match(
- self::$whitePattern,
- $this->buffer,
- $m,
- null,
- $this->count
- )) {
- if (! empty($m[0])) {
- $parts[] = $m[0];
- $this->count += strlen($m[0]);
- }
- }
-
- $this->whitespace(); // get any extra whitespace
-
- $out = array('string', '', $parts);
-
- return true;
- }
-
- /**
- * Parse comma separated selector list
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function selectors(&$out)
- {
- $s = $this->seek();
- $selectors = array();
-
- while ($this->selector($sel)) {
- $selectors[] = $sel;
-
- if (! $this->literal(',')) {
- break;
- }
-
- while ($this->literal(',')) {
- ; // ignore extra
- }
- }
-
- if (count($selectors) === 0) {
- $this->seek($s);
-
- return false;
- }
-
- $out = $selectors;
-
- return true;
- }
-
- /**
- * Parse whitespace separated selector list
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function selector(&$out)
- {
- $selector = array();
-
- while (true) {
- if ($this->match('[>+~]+', $m)) {
- $selector[] = array($m[0]);
- } elseif ($this->selectorSingle($part)) {
- $selector[] = $part;
- $this->match('\s+', $m);
- } elseif ($this->match('\/[^\/]+\/', $m)) {
- $selector[] = array($m[0]);
- } else {
- break;
- }
-
- }
-
- if (count($selector) === 0) {
- return false;
- }
-
- $out = $selector;
- return true;
- }
-
- /**
- * Parse the parts that make up a selector
- *
- * {@internal
- * div[yes=no]#something.hello.world:nth-child(-2n+1)%placeholder
- * }}
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function selectorSingle(&$out)
- {
- $oldWhite = $this->eatWhiteDefault;
- $this->eatWhiteDefault = false;
-
- $parts = array();
-
- if ($this->literal('*', false)) {
- $parts[] = '*';
- }
-
- while (true) {
- // see if we can stop early
- if ($this->match('\s*[{,]', $m)) {
- $this->count--;
- break;
- }
-
- $s = $this->seek();
-
- // self
- if ($this->literal('&', false)) {
- $parts[] = Compiler::$selfSelector;
- continue;
- }
-
- if ($this->literal('.', false)) {
- $parts[] = '.';
- continue;
- }
-
- if ($this->literal('|', false)) {
- $parts[] = '|';
- continue;
- }
-
- if ($this->match('\\\\\S', $m)) {
- $parts[] = $m[0];
- continue;
- }
-
- // for keyframes
- if ($this->unit($unit)) {
- $parts[] = $unit;
- continue;
- }
-
- if ($this->keyword($name)) {
- $parts[] = $name;
- continue;
- }
-
- if ($this->interpolation($inter)) {
- $parts[] = $inter;
- continue;
- }
-
- if ($this->literal('%', false) && $this->placeholder($placeholder)) {
- $parts[] = '%';
- $parts[] = $placeholder;
- continue;
- }
-
- if ($this->literal('#', false)) {
- $parts[] = '#';
- continue;
- }
-
- // a pseudo selector
- if ($this->match('::?', $m) && $this->mixedKeyword($nameParts)) {
- $parts[] = $m[0];
-
- foreach ($nameParts as $sub) {
- $parts[] = $sub;
- }
-
- $ss = $this->seek();
-
- if ($this->literal('(') &&
- ($this->openString(')', $str, '(') || true ) &&
- $this->literal(')')
- ) {
- $parts[] = '(';
-
- if (! empty($str)) {
- $parts[] = $str;
- }
-
- $parts[] = ')';
- } else {
- $this->seek($ss);
- }
-
- continue;
- }
-
- $this->seek($s);
-
- // attribute selector
- // TODO: replace with open string?
- if ($this->literal('[', false)) {
- $attrParts = array('[');
-
- // keyword, string, operator
- while (true) {
- if ($this->literal(']', false)) {
- $this->count--;
- break; // get out early
- }
-
- if ($this->match('\s+', $m)) {
- $attrParts[] = ' ';
- continue;
- }
-
- if ($this->string($str)) {
- $attrParts[] = $str;
- continue;
- }
-
- if ($this->keyword($word)) {
- $attrParts[] = $word;
- continue;
- }
-
- if ($this->interpolation($inter, false)) {
- $attrParts[] = $inter;
- continue;
- }
-
- // operator, handles attr namespace too
- if ($this->match('[|-~\$\*\^=]+', $m)) {
- $attrParts[] = $m[0];
- continue;
- }
-
- break;
- }
-
- if ($this->literal(']', false)) {
- $attrParts[] = ']';
-
- foreach ($attrParts as $part) {
- $parts[] = $part;
- }
-
- continue;
- }
-
- $this->seek($s);
- // TODO: should just break here?
- }
-
- break;
- }
-
- $this->eatWhiteDefault = $oldWhite;
-
- if (count($parts) === 0) {
- return false;
- }
-
- $out = $parts;
-
- return true;
- }
-
- /**
- * Parse a variable
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function variable(&$out)
- {
- $s = $this->seek();
-
- if ($this->literal('$', false) && $this->keyword($name)) {
- $out = array('var', $name);
-
- return true;
- }
-
- $this->seek($s);
-
- return false;
- }
-
- /**
- * Parse a keyword
- *
- * @param string $word
- * @param boolean $eatWhitespace
- *
- * @return boolean
- */
- protected function keyword(&$word, $eatWhitespace = null)
- {
- if ($this->match(
- '(([\w_\-\*!"\']|[\\\\].)([\w\-_"\']|[\\\\].)*)',
- $m,
- $eatWhitespace
- )) {
- $word = $m[1];
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse a placeholder
- *
- * @param string $placeholder
- *
- * @return boolean
- */
- protected function placeholder(&$placeholder)
- {
- if ($this->match('([\w\-_]+|#[{][$][\w\-_]+[}])', $m)) {
- $placeholder = $m[1];
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Parse a url
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function url(&$out)
- {
- if ($this->match('(url\(\s*(["\']?)([^)]+)\2\s*\))', $m)) {
- $out = array('string', '', array('url(' . $m[2] . $m[3] . $m[2] . ')'));
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Consume an end of statement delimiter
- *
- * @return boolean
- */
- protected function end()
- {
- if ($this->literal(';')) {
- return true;
- }
-
- if ($this->count === strlen($this->buffer) || $this->buffer[$this->count] === '}') {
- // if there is end of file or a closing block next then we don't need a ;
- return true;
- }
-
- return false;
- }
-
- /**
- * @deprecated
- *
- * {@internal
- * advance counter to next occurrence of $what
- * $until - don't include $what in advance
- * $allowNewline, if string, will be used as valid char set
- * }}
- */
- protected function to($what, &$out, $until = false, $allowNewline = false)
- {
- if (is_string($allowNewline)) {
- $validChars = $allowNewline;
- } else {
- $validChars = $allowNewline ? '.' : "[^\n]";
- }
-
- if (! $this->match('(' . $validChars . '*?)' . $this->pregQuote($what), $m, ! $until)) {
- return false;
- }
-
- if ($until) {
- $this->count -= strlen($what); // give back $what
- }
-
- $out = $m[1];
-
- return true;
- }
-
- /**
- * Throw parser error
- *
- * @param string $msg
- * @param integer $count
- *
- * @throws \Exception
- */
- public function throwParseError($msg = 'parse error', $count = null)
- {
- $count = ! isset($count) ? $this->count : $count;
-
- $line = $this->getLineNo($count);
-
- if (! empty($this->sourceName)) {
- $loc = "$this->sourceName on line $line";
- } else {
- $loc = "line: $line";
- }
-
- if ($this->peek("(.*?)(\n|$)", $m, $count)) {
- throw new \Exception("$msg: failed at `$m[1]` $loc");
- }
-
- throw new \Exception("$msg: $loc");
- }
-
- /**
- * Get source file name
- *
- * @return string
- */
- public function getSourceName()
- {
- return $this->sourceName;
- }
-
- /**
- * Get source line number (given character position in the buffer)
- *
- * @param integer $pos
- *
- * @return integer
- */
- public function getLineNo($pos)
- {
- return 1 + substr_count(substr($this->buffer, 0, $pos), "\n");
- }
-
- /**
- * Match string looking for either ending delim, escape, or string interpolation
- *
- * {@internal This is a workaround for preg_match's 250K string match limit. }}
- *
- * @param array $m Matches (passed by reference)
- * @param string $delim Delimeter
- *
- * @return boolean True if match; false otherwise
- */
- protected function matchString(&$m, $delim)
- {
- $token = null;
-
- $end = strlen($this->buffer);
-
- // look for either ending delim, escape, or string interpolation
- foreach (array('#{', '\\', $delim) as $lookahead) {
- $pos = strpos($this->buffer, $lookahead, $this->count);
-
- if ($pos !== false && $pos < $end) {
- $end = $pos;
- $token = $lookahead;
- }
- }
-
- if (! isset($token)) {
- return false;
- }
-
- $match = substr($this->buffer, $this->count, $end - $this->count);
- $m = array(
- $match . $token,
- $match,
- $token
- );
- $this->count = $end + strlen($token);
-
- return true;
- }
-
- /**
- * Try to match something on head of buffer
- *
- * @param string $regex
- * @param array $out
- * @param boolean $eatWhitespace
- *
- * @return boolean
- */
- protected function match($regex, &$out, $eatWhitespace = null)
- {
- if (! isset($eatWhitespace)) {
- $eatWhitespace = $this->eatWhiteDefault;
- }
-
- $r = '/' . $regex . '/Ais';
-
- if (preg_match($r, $this->buffer, $out, null, $this->count)) {
- $this->count += strlen($out[0]);
-
- if ($eatWhitespace) {
- $this->whitespace();
- }
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Match some whitespace
- *
- * @return boolean
- */
- protected function whitespace()
- {
- $gotWhite = false;
-
- while (preg_match(self::$whitePattern, $this->buffer, $m, null, $this->count)) {
- if (isset($m[1]) && empty($this->commentsSeen[$this->count])) {
- $this->appendComment(array('comment', $m[1]));
-
- $this->commentsSeen[$this->count] = true;
- }
-
- $this->count += strlen($m[0]);
- $gotWhite = true;
- }
-
- return $gotWhite;
- }
-
- /**
- * Peek input stream
- *
- * @param string $regex
- * @param array $out
- * @param integer $from
- *
- * @return integer
- */
- protected function peek($regex, &$out, $from = null)
- {
- if (! isset($from)) {
- $from = $this->count;
- }
-
- $r = '/' . $regex . '/Ais';
- $result = preg_match($r, $this->buffer, $out, null, $from);
-
- return $result;
- }
-
- /**
- * Seek to position in input stream (or return current position in input stream)
- *
- * @param integer $where
- *
- * @return integer
- */
- protected function seek($where = null)
- {
- if ($where === null) {
- return $this->count;
- }
-
- $this->count = $where;
-
- return true;
- }
-
- /**
- * Quote regular expression
- *
- * @param string $what
- *
- * @return string
- */
- public static function pregQuote($what)
- {
- return preg_quote($what, '/');
- }
-
- /**
- * @deprecated
- */
- protected function show()
- {
- if ($this->peek("(.*?)(\n|$)", $m, $this->count)) {
- return $m[1];
- }
-
- return '';
- }
-
- /**
- * Turn list of length 1 into value type
- *
- * @param array $value
- *
- * @return array
- */
- protected function flattenList($value)
- {
- if ($value[0] === 'list' && count($value[2]) === 1) {
- return $this->flattenList($value[2][0]);
- }
-
- return $value;
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp;
-
-use Leafo\ScssPhp\Compiler;
-use Leafo\ScssPhp\Version;
-
-/**
- * SCSS server
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Server
-{
- /**
- * @var boolean
- */
- private $showErrorsAsCSS;
-
- /**
- * @var string
- */
- private $dir;
-
- /**
- * @var string
- */
- private $cacheDir;
-
- /**
- * @var \Leafo\ScssPhp\Compiler
- */
- private $scss;
-
- /**
- * Join path components
- *
- * @param string $left Path component, left of the directory separator
- * @param string $right Path component, right of the directory separator
- *
- * @return string
- */
- protected function join($left, $right)
- {
- return rtrim($left, '/\\') . DIRECTORY_SEPARATOR . ltrim($right, '/\\');
- }
-
- /**
- * Get name of requested .scss file
- *
- * @return string|null
- */
- protected function inputName()
- {
- switch (true) {
- case isset($_GET['p']):
- return $_GET['p'];
- case isset($_SERVER['PATH_INFO']):
- return $_SERVER['PATH_INFO'];
- case isset($_SERVER['DOCUMENT_URI']):
- return substr($_SERVER['DOCUMENT_URI'], strlen($_SERVER['SCRIPT_NAME']));
- }
- }
-
- /**
- * Get path to requested .scss file
- *
- * @return string
- */
- protected function findInput()
- {
- if (($input = $this->inputName())
- && strpos($input, '..') === false
- && substr($input, -5) === '.scss'
- ) {
- $name = $this->join($this->dir, $input);
-
- if (is_file($name) && is_readable($name)) {
- return $name;
- }
- }
-
- return false;
- }
-
- /**
- * Get path to cached .css file
- *
- * @return string
- */
- protected function cacheName($fname)
- {
- return $this->join($this->cacheDir, md5($fname) . '.css');
- }
-
- /**
- * Get path to meta data
- *
- * @return string
- */
- protected function metadataName($out)
- {
- return $out . '.meta';
- }
-
- /**
- * Determine whether .scss file needs to be re-compiled.
- *
- * @param string $in Input path
- * @param string $out Output path
- * @param string $etag ETag
- *
- * @return boolean True if compile required.
- */
- protected function needsCompile($in, $out, &$etag)
- {
- if (! is_file($out)) {
- return true;
- }
-
- $mtime = filemtime($out);
-
- if (filemtime($in) > $mtime) {
- return true;
- }
-
- $metadataName = $this->metadataName($out);
-
- if (is_readable($metadataName)) {
- $metadata = unserialize(file_get_contents($metadataName));
-
- foreach ($metadata['imports'] as $import => $importMtime) {
- if ($importMtime > $mtime) {
- return true;
- }
- }
-
- $etag = $metadata['etag'];
-
- return false;
- }
-
- return true;
- }
-
- /**
- * Get If-Modified-Since header from client request
- *
- * @return string|null
- */
- protected function getIfModifiedSinceHeader()
- {
- $modifiedSince = null;
-
- if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
- $modifiedSince = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
-
- if (false !== ($semicolonPos = strpos($modifiedSince, ';'))) {
- $modifiedSince = substr($modifiedSince, 0, $semicolonPos);
- }
- }
-
- return $modifiedSince;
- }
-
- /**
- * Get If-None-Match header from client request
- *
- * @return string|null
- */
- protected function getIfNoneMatchHeader()
- {
- $noneMatch = null;
-
- if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
- $noneMatch = $_SERVER['HTTP_IF_NONE_MATCH'];
- }
-
- return $noneMatch;
- }
-
- /**
- * Compile .scss file
- *
- * @param string $in Input path (.scss)
- * @param string $out Output path (.css)
- *
- * @return array
- */
- protected function compile($in, $out)
- {
- $start = microtime(true);
- $css = $this->scss->compile(file_get_contents($in), $in);
- $elapsed = round((microtime(true) - $start), 4);
-
- $v = Version::VERSION;
- $t = @date('r');
- $css = "/* compiled by scssphp $v on $t (${elapsed}s) */\n\n" . $css;
- $etag = md5($css);
-
- file_put_contents($out, $css);
- file_put_contents(
- $this->metadataName($out),
- serialize(array(
- 'etag' => $etag,
- 'imports' => $this->scss->getParsedFiles(),
- ))
- );
-
- return array($css, $etag);
- }
-
- /**
- * Format error as a pseudo-element in CSS
- *
- * @param \Exception $error
- *
- * @return string
- */
- protected function createErrorCSS($error)
- {
- $message = str_replace(
- array("'", "\n"),
- array("\\'", "\\A"),
- $error->getfile() . ":\n\n" . $error->getMessage()
- );
-
- return "body { display: none !important; }
- html:after {
- background: white;
- color: black;
- content: '$message';
- display: block !important;
- font-family: mono;
- padding: 1em;
- white-space: pre;
- }";
- }
-
- /**
- * Render errors as a pseudo-element within valid CSS, displaying the errors on any
- * page that includes this CSS.
- *
- * @param boolean $show
- */
- public function showErrorsAsCSS($show = true)
- {
- $this->showErrorsAsCSS = $show;
- }
-
- /**
- * Compile .scss file
- *
- * @param string $in Input file (.scss)
- * @param string $out Output file (.css) optional
- *
- * @return string|bool
- */
- public function compileFile($in, $out = null)
- {
- if (! is_readable($in)) {
- throw new \Exception('load error: failed to find ' . $in);
- }
-
- $pi = pathinfo($in);
-
- $this->scss->addImportPath($pi['dirname'] . '/');
-
- $compiled = $this->scss->compile(file_get_contents($in), $in);
-
- if ($out !== null) {
- return file_put_contents($out, $compiled);
- }
-
- return $compiled;
- }
-
- /**
- * Check if file need compiling
- *
- * @param string $in Input file (.scss)
- * @param string $out Output file (.css)
- *
- * @return bool
- */
- public function checkedCompile($in, $out)
- {
- if (! is_file($out) || filemtime($in) > filemtime($out)) {
- $this->compileFile($in, $out);
-
- return true;
- }
-
- return false;
- }
-
- /**
- * Compile requested scss and serve css. Outputs HTTP response.
- *
- * @param string $salt Prefix a string to the filename for creating the cache name hash
- */
- public function serve($salt = '')
- {
- $protocol = isset($_SERVER['SERVER_PROTOCOL'])
- ? $_SERVER['SERVER_PROTOCOL']
- : 'HTTP/1.0';
-
- if ($input = $this->findInput()) {
- $output = $this->cacheName($salt . $input);
- $etag = $noneMatch = trim($this->getIfNoneMatchHeader(), '"');
-
- if ($this->needsCompile($input, $output, $etag)) {
- try {
- list($css, $etag) = $this->compile($input, $output);
-
- $lastModified = gmdate('D, d M Y H:i:s', filemtime($output)) . ' GMT';
-
- header('Last-Modified: ' . $lastModified);
- header('Content-type: text/css');
- header('ETag: "' . $etag . '"');
-
- echo $css;
-
- } catch (\Exception $e) {
- if ($this->showErrorsAsCSS) {
- header('Content-type: text/css');
-
- echo $this->createErrorCSS($e);
- } else {
- header($protocol . ' 500 Internal Server Error');
- header('Content-type: text/plain');
-
- echo 'Parse error: ' . $e->getMessage() . "\n";
- }
-
- }
-
- return;
- }
-
- header('X-SCSS-Cache: true');
- header('Content-type: text/css');
- header('ETag: "' . $etag . '"');
-
- if ($etag === $noneMatch) {
- header($protocol . ' 304 Not Modified');
-
- return;
- }
-
- $modifiedSince = $this->getIfModifiedSinceHeader();
- $mtime = filemtime($output);
-
- if (@strtotime($modifiedSince) === $mtime) {
- header($protocol . ' 304 Not Modified');
-
- return;
- }
-
- $lastModified = gmdate('D, d M Y H:i:s', $mtime) . ' GMT';
- header('Last-Modified: ' . $lastModified);
-
- echo file_get_contents($output);
-
- return;
- }
-
- header($protocol . ' 404 Not Found');
- header('Content-type: text/plain');
-
- $v = Version::VERSION;
- echo "/* INPUT NOT FOUND scss $v */\n";
- }
-
- /**
- * Based on explicit input/output files does a full change check on cache before compiling.
- *
- * @param string $in
- * @param string $out
- * @param boolean $force
- *
- * @return string Compiled CSS results
- *
- * @throws \Exception
- */
- public function checkedCachedCompile($in, $out, $force = false)
- {
- if (! is_file($in) || ! is_readable($in)) {
- throw new \Exception('Invalid or unreadable input file specified.');
- }
-
- if (is_dir($out) || ! is_writable(file_exists($out) ? $out : dirname($out))) {
- throw new \Exception('Invalid or unwritable output file specified.');
- }
-
- if ($force || $this->needsCompile($in, $out, $etag)) {
- list($css, $etag) = $this->compile($in, $out);
- } else {
- $css = file_get_contents($out);
- }
-
- return $css;
- }
-
- /**
- * Constructor
- *
- * @param string $dir Root directory to .scss files
- * @param string $cacheDir Cache directory
- * @param \Leafo\ScssPhp\Compiler|null $scss SCSS compiler instance
- */
- public function __construct($dir, $cacheDir = null, $scss = null)
- {
- $this->dir = $dir;
-
- if (! isset($cacheDir)) {
- $cacheDir = $this->join($dir, 'scss_cache');
- }
-
- $this->cacheDir = $cacheDir;
-
- if (! is_dir($this->cacheDir)) {
- mkdir($this->cacheDir, 0755, true);
- }
-
- if (! isset($scss)) {
- $scss = new Compiler();
- $scss->setImportPaths($this->dir);
- }
-
- $this->scss = $scss;
- $this->showErrorsAsCSS = false;
- }
-
- /**
- * Helper method to serve compiled scss
- *
- * @param string $path Root path
- */
- public static function serveFrom($path)
- {
- $server = new self($path);
- $server->serve();
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp;
-
-use Leafo\ScssPhp\Base\Range;
-
-/**
- * SCSS utilties
- *
- * @author Anthon Pang <anthon.pang@gmail.com>
- */
-class Util
-{
- /**
- * Asserts that `value` falls within `range` (inclusive), leaving
- * room for slight floating-point errors.
- *
- * @param string $name The name of the value. Used in the error message.
- * @param Range $range Range of values.
- * @param array $value The value to check.
- * @param string $unit The unit of the value. Used in error reporting.
- *
- * @return mixed `value` adjusted to fall within range, if it was outside by a floating-point margin.
- *
- * @throws \Exception
- */
- public static function checkRange($name, Range $range, $value, $unit = '')
- {
- $val = $value[1];
- $grace = new Range(-0.00001, 0.00001);
-
- if ($range->includes($val)) {
- return $val;
- }
-
- if ($grace->includes($val - $range->first)) {
- return $range->first;
- }
-
- if ($grace->includes($val - $range->last)) {
- return $range->last;
- }
-
- throw new \Exception("$name {$val} must be between {$range->first} and {$range->last}$unit");
- }
-}
+++ /dev/null
-<?php
-/**
- * SCSSPHP
- *
- * @copyright 2012-2015 Leaf Corcoran
- *
- * @license http://opensource.org/licenses/MIT MIT
- *
- * @link http://leafo.github.io/scssphp
- */
-
-namespace Leafo\ScssPhp;
-
-/**
- * SCSSPHP version
- *
- * @author Leaf Corcoran <leafot@gmail.com>
- */
-class Version
-{
- const VERSION = 'v0.3.0';
-}
projects / GitHub / WoltLab / WCF.git / commitdiff