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\Type;
use Leafo\ScssPhp\Parser;
use Leafo\ScssPhp\Util;
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',
- );
+ const WITH_RULE = 1;
+ const WITH_MEDIA = 2;
+ const WITH_SUPPORTS = 4;
+ const WITH_ALL = 7;
/**
* @var array
*/
- static protected $namespaces = array(
- 'special' => '%',
- 'mixin' => '@',
- 'function' => '^',
- );
+ static protected $operatorNames = [
+ '+' => 'add',
+ '-' => 'sub',
+ '*' => 'mul',
+ '/' => 'div',
+ '%' => 'mod',
+
+ '==' => 'eq',
+ '!=' => 'neq',
+ '<' => 'lt',
+ '>' => 'gt',
+
+ '<=' => 'lte',
+ '>=' => 'gte',
+ '<=>' => 'cmp',
+ ];
/**
* @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;
+ 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 $formatter = 'Leafo\ScssPhp\Formatter\Nested';
+ protected $rootEnv;
+ protected $rootBlock;
+
+ protected $env;
+ protected $scope;
+ protected $storeEnv;
+ protected $charsetSeen;
+ protected $sourceNames;
+
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 $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 $name
+ * @param string $path
*
* @return string
*/
- public function compile($code, $name = null)
+ public function compile($code, $path = 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);
-
+ $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->rootEnv = $this->pushEnv($tree);
$this->injectVariables($this->registeredVars);
$this->compileRoot($tree);
$this->popEnv();
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?
*
/**
* Push extends
*
- * @param array $target
- * @param array $origin
+ * @param array $target
+ * @param array $origin
+ * @param \stdClass $block
*/
- protected function pushExtends($target, $origin)
+ protected function pushExtends($target, $origin, $block)
{
if ($this->isSelfExtend($target, $origin)) {
return;
}
$i = count($this->extends);
- $this->extends[] = array($target, $origin);
+ $this->extends[] = [$target, $origin, $block];
foreach ($target as $part) {
if (isset($this->extendsMap[$part])) {
$this->extendsMap[$part][] = $i;
} else {
- $this->extendsMap[$part] = array($i);
+ $this->extendsMap[$part] = [$i];
}
}
}
* @param string $type
* @param array $selectors
*
- * @return \stdClass
+ * @return \Leafo\ScssPhp\Formatter\OutputBlock
*/
protected function makeOutputBlock($type, $selectors = null)
{
- $out = new \stdClass;
- $out->type = $type;
- $out->lines = array();
- $out->children = array();
- $out->parent = $this->scope;
+ $out = new OutputBlock;
+ $out->type = $type;
+ $out->lines = [];
+ $out->children = [];
+ $out->parent = $this->scope;
$out->selectors = $selectors;
- $out->depth = $this->env->depth;
+ $out->depth = $this->env->depth;
return $out;
}
/**
* Compile root
*
- * @param \stdClass $rootBlock
+ * @param \Leafo\ScssPhp\Block $rootBlock
*/
- protected function compileRoot($rootBlock)
+ protected function compileRoot(Block $rootBlock)
{
- $this->scope = $this->makeOutputBlock('root');
+ $this->rootBlock = $this->scope = $this->makeOutputBlock(Type::T_ROOT);
- $this->compileChildren($rootBlock->children, $this->scope);
+ $this->compileChildrenNoReturn($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 \stdClass $block
- * @parent string $parentKey
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $block
+ * @param string $parentKey
*/
- protected function flattenSelectors($block, $parentKey = null)
+ protected function flattenSelectors(OutputBlock $block, $parentKey = null)
{
if ($block->selectors) {
- $selectors = array();
+ $selectors = [];
foreach ($block->selectors as $s) {
$selectors[] = $s;
// remove duplicates
array_walk($selectors, function (&$value) {
- $value = json_encode($value);
+ $value = serialize($value);
});
+
$selectors = array_unique($selectors);
+
array_walk($selectors, function (&$value) {
- $value = json_decode($value);
+ $value = unserialize($value);
});
}
}
- $block->selectors = array();
+ $block->selectors = [];
$placeholderSelector = false;
foreach ($selectors as $selector) {
}
if ($this->matchExtendsSingle($part, $origin)) {
- $before = array_slice($selector, 0, $i);
$after = array_slice($selector, $i + 1);
- $s = count($before);
+ $before = array_slice($selector, 0, $i);
+
+ list($before, $nonBreakableBefore) = $this->extractRelationshipFromFragment($before);
foreach ($origin as $new) {
$k = 0;
// remove shared parts
if ($initial) {
- while ($k < $s && isset($new[$k]) && $before[$k] === $new[$k]) {
+ 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,
- $k > 0 ? array_slice($new, $k) : $new,
+ $mergedBefore,
+ $replacement,
$after
);
$out[] = $result;
// recursively check for more matches
- $this->matchExtends($result, $out, $i, false);
+ $this->matchExtends($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);
+
$result2 = array_merge(
- array_slice($new, 0, -1),
- $k > 0 ? array_slice($before, $k) : $before,
- array_slice($new, -1),
+ $sharedParts,
+ $injectBetweenSharedParts,
+ $postSharedParts,
+ $nonBreakable2,
+ $nonBreakableBefore,
+ $replacement,
$after
);
*/
protected function matchExtendsSingle($rawSingle, &$outOrigin)
{
- $counts = array();
- $single = array();
+ $counts = [];
+ $single = [];
foreach ($rawSingle as $part) {
// matches Number
}
}
+ $extendingDecoratedTag = false;
+
+ if (count($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) {
}
}
- $outOrigin = array();
+ $outOrigin = [];
$found = false;
foreach ($counts as $idx => $count) {
- list($target, $origin) = $this->extends[$idx];
+ 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) {
return false;
}
- $origin[$j][count($origin[$j]) - 1] = $this->combineSelectorSingle(end($new), $rem);
+ $replacement = end($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);
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, $children];
+ }
+
/**
* Combine selector single
*
*/
protected function combineSelectorSingle($base, $other)
{
- $tag = null;
- $out = array();
+ $tag = [];
+ $out = [];
+ $wasTag = true;
- foreach (array($base, $other) as $single) {
+ foreach ([$base, $other] as $single) {
foreach ($single as $part) {
- if (preg_match('/^[^\[.#:]/', $part)) {
- $tag = $part;
- } else {
+ 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] .= $part;
}
}
}
- if ($tag) {
- array_unshift($out, $tag);
+ if (count($tag)) {
+ array_unshift($out, $tag[0]);
}
return $out;
/**
* Compile media
*
- * @param \stdClass $media
+ * @param \Leafo\ScssPhp\Block $media
*/
- protected function compileMedia($media)
+ protected function compileMedia(Block $media)
{
$this->pushEnv($media);
$mediaQuery = $this->compileMediaQuery($this->multiplyMedia($this->env));
if (! empty($mediaQuery)) {
- $this->scope = $this->makeOutputBlock('media', array($mediaQuery));
+ $this->scope = $this->makeOutputBlock(Type::T_MEDIA, [$mediaQuery]);
$parentScope = $this->mediaParent($this->scope);
$parentScope->children[] = $this->scope;
foreach ($media->children as $child) {
$type = $child[0];
- if ($type !== 'block' && $type !== 'media' && $type !== 'directive') {
+ if ($type !== Type::T_BLOCK &&
+ $type !== Type::T_MEDIA &&
+ $type !== Type::T_DIRECTIVE &&
+ $type !== Type::T_IMPORT
+ ) {
$needsWrap = true;
break;
}
}
if ($needsWrap) {
- $wrapped = (object)array(
- 'selectors' => array(),
- 'children' => $media->children
- );
- $media->children = array(array('block', $wrapped));
+ $wrapped = new Block;
+ $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]];
}
- $this->compileChildren($media->children, $this->scope);
+ $this->compileChildrenNoReturn($media->children, $this->scope);
$this->scope = $this->scope->parent;
}
/**
* Media parent
*
- * @param \stdClass $scope
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $scope
*
- * @return \stdClass
+ * @return \Leafo\ScssPhp\Formatter\OutputBlock
*/
- protected function mediaParent($scope)
+ protected function mediaParent(OutputBlock $scope)
{
while (! empty($scope->parent)) {
- if (! empty($scope->type) && $scope->type !== 'media') {
+ if (! empty($scope->type) && $scope->type !== Type::T_MEDIA) {
break;
}
}
/**
- * Compile nested block
+ * Compile directive
*
- * @todo refactor compileNestedBlock and compileMedia into same thing?
+ * @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 \stdClass $block
- * @param array $selectors
+ * @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) : self::WITH_RULE;
+
+ // wrap inline selector
+ if ($block->selector) {
+ $wrapped = new Block;
+ $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->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
+ $without = self::WITH_RULE;
+
+ if ($this->libMapHasKey([$with, self::$with])) {
+ $without = self::WITH_ALL;
+
+ $list = $this->coerceList($this->libMapGet([$with, self::$with]));
+
+ foreach ($list[2] as $item) {
+ $keyword = $this->compileStringContent($this->coerceString($item));
+
+ if (array_key_exists($keyword, $mapping)) {
+ $without &= ~($mapping[$keyword]);
+ }
+ }
+ }
+
+ if ($this->libMapHasKey([$with, self::$without])) {
+ $without = 0;
+
+ $list = $this->coerceList($this->libMapGet([$with, self::$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 & self::WITH_RULE) && isset($block->selectors)) ||
+ (($without & self::WITH_MEDIA) &&
+ isset($block->type) && $block->type === Type::T_MEDIA) ||
+ (($without & self::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 $selectors
*/
- protected function compileNestedBlock($block, $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;
- $this->compileChildren($block->children, $this->scope);
+ $this->compileChildrenNoReturn($block->children, $this->scope);
$this->scope = $this->scope->parent;
*
* @see Compiler::compileChild()
*
- * @param \stdClass $block
+ * @param \Leafo\ScssPhp\Block $block
*/
- protected function compileBlock($block)
+ protected function compileBlock(Block $block)
{
$env = $this->pushEnv($block);
-
$env->selectors = $this->evalSelectors($block->selectors);
- $out = $this->makeOutputBlock(null, $this->multiplySelectors($env));
+ $out = $this->makeOutputBlock(null);
if (isset($this->lineNumberStyle) && count($env->selectors) && count($block->children)) {
- $annotation = $this->makeOutputBlock('comment');
+ $annotation = $this->makeOutputBlock(Type::T_COMMENT);
$annotation->depth = 0;
- $file = $block->sourceParser->getSourceName();
- $line = $block->sourceParser->getLineNo($block->sourcePosition);
+ $file = $this->sourceNames[$block->sourceIndex];
+ $line = $block->sourceLine;
switch ($this->lineNumberStyle) {
case self::LINE_COMMENTS:
$this->scope->children[] = $out;
- $this->compileChildren($block->children, $out);
+ if (count($block->children)) {
+ $out->selectors = $this->multiplySelectors($env);
+
+ $this->compileChildrenNoReturn($block->children, $out);
+ }
$this->formatter->stripSemicolon($out->lines);
*/
protected function compileComment($block)
{
- $out = $this->makeOutputBlock('comment');
+ $out = $this->makeOutputBlock(Type::T_COMMENT);
$out->lines[] = $block[1];
$this->scope->children[] = $out;
}
{
$this->shouldEvaluate = false;
- $selectors = array_map(array($this, 'evalSelector'), $selectors);
+ $selectors = array_map([$this, 'evalSelector'], $selectors);
// after evaluating interpolates, we might need a second pass
if ($this->shouldEvaluate) {
$buffer = $this->collapseSelectors($selectors);
- $parser = new Parser(__METHOD__, false);
+ $parser = $this->parserFactory(__METHOD__);
if ($parser->parseSelector($buffer, $newSelectors)) {
- $selectors = array_map(array($this, 'evalSelector'), $newSelectors);
+ $selectors = array_map([$this, 'evalSelector'], $newSelectors);
}
}
*/
protected function evalSelector($selector)
{
- return array_map(array($this, 'evalSelectorPart'), $selector);
+ return array_map([$this, 'evalSelectorPart'], $selector);
}
/**
protected function evalSelectorPart($part)
{
foreach ($part as &$p) {
- if (is_array($p) && ($p[0] === 'interpolate' || $p[0] === 'string')) {
+ if (is_array($p) && ($p[0] === Type::T_INTERPOLATE || $p[0] === Type::T_STRING)) {
$p = $this->compileValue($p);
// force re-evaluation
*/
protected function collapseSelectors($selectors)
{
- $parts = array();
+ $parts = [];
foreach ($selectors as $selector) {
$output = '';
*/
protected function flattenSelectorSingle($single)
{
- $joined = array();
+ $joined = [];
foreach ($single as $part) {
if (empty($joined) ||
return implode(
' ',
array_map(
- array($this, 'compileSelectorPart'),
+ [$this, 'compileSelectorPart'],
$selector
)
);
}
switch ($p[0]) {
- case 'self':
+ case Type::T_SELF:
$p = '&';
break;
foreach ($selector as $parts) {
foreach ($parts as $part) {
- if ('%' === $part[0]) {
+ if (strlen($part) && '%' === $part[0]) {
return true;
}
}
}
/**
- * Compile children
+ * Compile children and return result
*
- * @param array $stms
- * @param array $out
+ * @param array $stms
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $out
*
* @return array
*/
- protected function compileChildren($stms, $out)
+ protected function compileChildren($stms, OutputBlock $out)
{
foreach ($stms as $stm) {
$ret = $this->compileChild($stm, $out);
}
}
+ /**
+ * 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)) {
+ $this->throwError('@return may only be used within a function');
+
+ return;
+ }
+ }
+ }
+
/**
* Compile media query
*
foreach ($queryList as $query) {
$type = null;
- $parts = array();
+ $parts = [];
foreach ($query as $q) {
switch ($q[0]) {
- case 'mediaType':
+ case Type::T_MEDIA_TYPE:
if ($type) {
$type = $this->mergeMediaTypes(
$type,
- array_map(array($this, 'compileValue'), array_slice($q, 1))
+ array_map([$this, 'compileValue'], array_slice($q, 1))
);
if (empty($type)) { // merge failed
return null;
}
} else {
- $type = array_map(array($this, 'compileValue'), array_slice($q, 1));
+ $type = array_map([$this, 'compileValue'], array_slice($q, 1));
}
break;
- case 'mediaExp':
+ case Type::T_MEDIA_EXPRESSION:
if (isset($q[2])) {
$parts[] = '('
. $this->compileValue($q[1])
. ')';
}
break;
+
+ case Type::T_MEDIA_VALUE:
+ $parts[] = $this->compileValue($q[1]);
+ break;
}
}
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
*
$t2 = strtolower($type2[0]);
}
- if (($m1 === 'not') ^ ($m2 === 'not')) {
+ if (($m1 === Type::T_NOT) ^ ($m2 === Type::T_NOT)) {
if ($t1 === $t2) {
return null;
}
- return array(
- $m1 === 'not' ? $m2 : $m1,
- $m1 === 'not' ? $t2 : $t1
- );
+ return [
+ $m1 === Type::T_NOT ? $m2 : $m1,
+ $m1 === Type::T_NOT ? $t2 : $t1,
+ ];
}
- if ($m1 === 'not' && $m2 === 'not') {
+ if ($m1 === Type::T_NOT && $m2 === Type::T_NOT) {
// CSS has no way of representing "neither screen nor print"
if ($t1 !== $t2) {
return null;
}
- return array('not', $t1);
+ return [Type::T_NOT, $t1];
}
if ($t1 !== $t2) {
}
// t1 == t2, neither m1 nor m2 are "not"
- return array(empty($m1)? $m2 : $m1, $t1);
+ return [empty($m1)? $m2 : $m1, $t1];
}
/**
* Compile import; returns true if the value was something that could be imported
*
- * @param array $rawPath
- * @param array $out
+ * @param array $rawPath
+ * @param array $out
+ * @param boolean $once
*
* @return boolean
*/
- protected function compileImport($rawPath, $out)
+ protected function compileImport($rawPath, $out, $once = false)
{
- if ($rawPath[0] === 'string') {
+ if ($rawPath[0] === Type::T_STRING) {
$path = $this->compileStringContent($rawPath);
if ($path = $this->findImport($path)) {
- $this->importFile($path, $out);
+ if (! $once || ! in_array($path, $this->importedFiles)) {
+ $this->importFile($path, $out);
+ $this->importedFiles[] = $path;
+ }
return true;
}
return false;
}
- if ($rawPath[0] === 'list') {
+ 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] !== 'string') {
+ if ($path[0] !== Type::T_STRING) {
return false;
}
}
/**
* Compile child; returns a value to halt execution
*
- * @param array $child
- * @param \stdClass $out
+ * @param array $child
+ * @param \Leafo\ScssPhp\Formatter\OutputBlock $out
*
* @return array
*/
- protected function compileChild($child, $out)
+ protected function compileChild($child, OutputBlock $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;
+ $this->sourceIndex = isset($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 'import':
+ case Type::T_SCSSPHP_IMPORT_ONCE:
list(, $rawPath) = $child;
$rawPath = $this->reduce($rawPath);
- if (! $this->compileImport($rawPath, $out)) {
+ if (! $this->compileImport($rawPath, $out, true)) {
$out->lines[] = '@import ' . $this->compileValue($rawPath) . ';';
}
break;
- case 'directive':
- list(, $directive) = $child;
+ case Type::T_IMPORT:
+ list(, $rawPath) = $child;
- $s = '@' . $directive->name;
+ $rawPath = $this->reduce($rawPath);
- if (! empty($directive->value)) {
- $s .= ' ' . $this->compileValue($directive->value);
+ if (! $this->compileImport($rawPath, $out)) {
+ $out->lines[] = '@import ' . $this->compileValue($rawPath) . ';';
}
+ break;
+
+ case Type::T_DIRECTIVE:
+ $this->compileDirective($child[1]);
+ break;
- $this->compileNestedBlock($directive, array($s));
+ case Type::T_AT_ROOT:
+ $this->compileAtRoot($child[1]);
break;
- case 'media':
+ case Type::T_MEDIA:
$this->compileMedia($child[1]);
break;
- case 'block':
+ case Type::T_BLOCK:
$this->compileBlock($child[1]);
break;
- case 'charset':
+ case Type::T_CHARSET:
if (! $this->charsetSeen) {
$this->charsetSeen = true;
}
break;
- case 'assign':
+ case Type::T_ASSIGN:
list(, $name, $value) = $child;
- if ($name[0] === 'var') {
- $flag = isset($child[3]) ? $child[3] : null;
- $isDefault = $flag === '!default';
- $isGlobal = $flag === '!global';
+ if ($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, $this->rootEnv);
// handle shorthand syntax: size / line-height
if ($compiledName === 'font') {
- if ($value[0] === 'exp' && $value[1] === '/') {
+ if ($value[0] === Type::T_EXPRESSION && $value[1] === '/') {
$value = $this->expToString($value);
- } elseif ($value[0] === 'list') {
+ } elseif ($value[0] === Type::T_LIST) {
foreach ($value[2] as &$item) {
- if ($item[0] === 'exp' && $item[1] === '/') {
+ if ($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 ($value[0] !== 'null') {
+ if ($value[0] !== Type::T_NULL) {
$value = $this->reduce($value);
- if ($value[0] === 'null') {
+ if ($value[0] === Type::T_NULL || $value === self::$nullString) {
break;
}
}
);
break;
- case 'comment':
- if ($out->type === 'root') {
+ case Type::T_COMMENT:
+ if ($out->type === Type::T_ROOT) {
$this->compileComment($child);
break;
}
$out->lines[] = $child[1];
break;
- case 'mixin':
- case 'function':
+ case Type::T_MIXIN:
+ case Type::T_FUNCTION:
list(, $block) = $child;
$this->set(self::$namespaces[$block->type] . $block->name, $block);
break;
- case 'extend':
+ case Type::T_EXTEND:
list(, $selectors) = $child;
foreach ($selectors as $sel) {
- // only use the first one
- $result = $this->evalSelectors(array($sel));
- $result = current($result[0]);
+ $results = $this->evalSelectors([$sel]);
- $this->pushExtends($result, $out->selectors);
+ foreach ($results as $result) {
+ // only use the first one
+ $result = current($result);
+
+ $this->pushExtends($result, $out->selectors, $child);
+ }
}
break;
- case 'if':
+ case Type::T_IF:
list(, $if) = $child;
if ($this->isTruthy($this->reduce($if->cond, true))) {
}
foreach ($if->cases as $case) {
- if ($case->type === 'else' ||
- $case->type === 'elseif' && $this->isTruthy($this->reduce($case->cond))
+ if ($case->type === Type::T_ELSE ||
+ $case->type === Type::T_ELSEIF && $this->isTruthy($this->reduce($case->cond))
) {
return $this->compileChildren($case->children, $out);
}
}
break;
- case 'return':
- return $this->reduce($child[1], true);
-
- case 'each':
+ case Type::T_EACH:
list(, $each) = $child;
$list = $this->coerceList($this->reduce($each->list));
$ret = $this->compileChildren($each->children, $out);
if ($ret) {
- $this->popEnv();
+ if ($ret[0] !== Type::T_CONTROL) {
+ $this->popEnv();
+
+ return $ret;
+ }
- return $ret;
+ if ($ret[1]) {
+ break;
+ }
}
}
$this->popEnv();
break;
- case 'while':
+ case Type::T_WHILE:
list(, $while) = $child;
while ($this->isTruthy($this->reduce($while->cond, true))) {
$ret = $this->compileChildren($while->children, $out);
if ($ret) {
- return $ret;
+ if ($ret[0] !== Type::T_CONTROL) {
+ return $ret;
+ }
+
+ if ($ret[1]) {
+ break;
+ }
}
}
break;
- case 'for':
+ case Type::T_FOR:
list(, $for) = $child;
$start = $this->reduce($for->start, true);
$end = $end[1];
$d = $start < $end ? 1 : -1;
- while (true) {
+ for (;;) {
if ((! $for->until && $start - $d == $end) ||
($for->until && $start == $end)
) {
break;
}
- $this->set($for->var, array('number', $start, ''));
+ $this->set($for->var, new Node\Number($start, ''));
$start += $d;
$ret = $this->compileChildren($for->children, $out);
if ($ret) {
- return $ret;
+ if ($ret[0] !== Type::T_CONTROL) {
+ return $ret;
+ }
+
+ if ($ret[1]) {
+ break;
+ }
}
}
break;
- case 'nestedprop':
+ 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 = array();
+ $prefixed = [];
$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], $prefix);
+ switch ($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;
}
- $this->compileChildren($prefixed, $out);
+ $this->compileChildrenNoReturn($prefixed, $out);
break;
- case 'include':
+ case Type::T_INCLUDE:
// including a mixin
list(, $name, $argValues, $content) = $child;
if (! $mixin) {
$this->throwError("Undefined mixin $name");
+ break;
}
- $callingScope = $this->env;
+ $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;
- $this->setRaw(self::$namespaces['special'] . 'content', $content);
+ $this->setRaw(self::$namespaces['special'] . 'content', $content, $this->env);
}
if (isset($mixin->args)) {
$this->env->marker = 'mixin';
- foreach ($mixin->children as $child) {
- $this->compileChild($child, $out);
- }
+ $this->compileChildrenNoReturn($mixin->children, $out);
+
+ $this->storeEnv = $storeEnv;
$this->popEnv();
break;
- case 'mixin_content':
- $content = $this->get(self::$namespaces['special'] . 'content', false);
+ case Type::T_MIXIN_CONTENT:
+ $content = $this->get(self::$namespaces['special'] . 'content', false, $this->getStoreEnv())
+ ?: $this->get(self::$namespaces['special'] . 'content', false, $this->env);
if (! $content) {
- $this->throwError('Expected @content inside of mixin');
- }
-
- if (! isset($content->children)) {
+ $content = new \stdClass();
+ $content->scope = new \stdClass();
+ $content->children = $this->storeEnv->parent->block->children;
break;
}
+ $storeEnv = $this->storeEnv;
$this->storeEnv = $content->scope;
- foreach ($content->children as $child) {
- $this->compileChild($child, $out);
- }
-
- $this->storeEnv = null;
+ $this->compileChildrenNoReturn($content->children, $out);
+ $this->storeEnv = $storeEnv;
break;
- case 'debug':
+ case Type::T_DEBUG:
list(, $value) = $child;
- $line = $this->parser->getLineNo($this->sourcePos);
+ $line = $this->sourceLine;
$value = $this->compileValue($this->reduce($value, true));
fwrite($this->stderr, "Line $line DEBUG: $value\n");
break;
- case 'warn':
+ case Type::T_WARN:
list(, $value) = $child;
- $line = $this->parser->getLineNo($this->sourcePos);
+ $line = $this->sourceLine;
$value = $this->compileValue($this->reduce($value, true));
- echo "Line $line WARN: $value\n";
+ fwrite($this->stderr, "Line $line WARN: $value\n");
break;
- case 'error':
+ case Type::T_ERROR:
list(, $value) = $child;
- $line = $this->parser->getLineNo($this->sourcePos);
+ $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: $child[0]");
}
*/
protected function expToString($exp)
{
- list(, $op, $left, $right, $inParens, $whiteLeft, $whiteRight) = $exp;
+ list(, $op, $left, $right, /* $inParens */, $whiteLeft, $whiteRight) = $exp;
- $content = array($this->reduce($left));
+ $content = [$this->reduce($left)];
if ($whiteLeft) {
$content[] = ' ';
$content[] = $this->reduce($right);
- return array('string', '', $content);
+ return [Type::T_STRING, '', $content];
}
/**
return $value !== self::$false && $value !== self::$null;
}
+ /**
+ * Is the value a direct relationship combinator?
+ *
+ * @param string $value
+ *
+ * @return bool
+ */
+ protected function isImmediateRelationshipCombinator($value)
+ {
+ return $value === '>' || $value === '+' || $value === '~';
+ }
+
/**
* Should $value cause its operand to eval
*
protected function shouldEval($value)
{
switch ($value[0]) {
- case 'exp':
+ case Type::T_EXPRESSION:
if ($value[1] === '/') {
return $this->shouldEval($value[2], $value[3]);
}
// fall-thru
- case 'var':
- case 'fncall':
+ case Type::T_VARIABLE:
+ case Type::T_FUNCTION_CALL:
return true;
}
list($type) = $value;
switch ($type) {
- case 'exp':
+ case Type::T_EXPRESSION:
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]) && $right[2] !== '') {
+ if ($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);
}
// 3. op[op name]
$fn = "op${ucOpName}${ucLType}${ucRType}";
- if (is_callable(array($this, $fn)) ||
+ if (is_callable([$this, $fn]) ||
(($fn = "op${ucLType}${ucRType}") &&
- is_callable(array($this, $fn)) &&
+ is_callable([$this, $fn]) &&
$passOp = true) ||
(($fn = "op${ucOpName}") &&
- is_callable(array($this, $fn)) &&
+ is_callable([$this, $fn]) &&
$genOp = true)
) {
- $unitChange = false;
+ $coerceUnit = false;
if (! isset($genOp) &&
- $left[0] === 'number' && $right[0] === 'number'
+ $left[0] === Type::T_NUMBER && $right[0] === Type::T_NUMBER
) {
- if ($opName === 'mod' && $right[2] !== '') {
- $this->throwError("Cannot modulo by a number with units: $right[1]$right[2].");
- }
+ $coerceUnit = true;
- $unitChange = true;
- $emptyUnit = $left[2] === '' || $right[2] === '';
- $targetUnit = '' !== $left[2] ? $left[2] : $right[2];
+ switch ($opName) {
+ case 'mul':
+ $targetUnit = $left[2];
- if ($opName !== 'mul') {
- $left[2] = '' !== $left[2] ? $left[2] : $targetUnit;
- $right[2] = '' !== $right[2] ? $right[2] : $targetUnit;
- }
+ foreach ($right[2] as $unit => $exp) {
+ $targetUnit[$unit] = (isset($targetUnit[$unit]) ? $targetUnit[$unit] : 0) + $exp;
+ }
+ break;
- if ($opName !== 'mod') {
- $left = $this->normalizeNumber($left);
- $right = $this->normalizeNumber($right);
- }
+ case 'div':
+ $targetUnit = $left[2];
+
+ foreach ($right[2] as $unit => $exp) {
+ $targetUnit[$unit] = (isset($targetUnit[$unit]) ? $targetUnit[$unit] : 0) - $exp;
+ }
+ break;
+
+ case 'mod':
+ $targetUnit = $left[2];
+ break;
- if ($opName === 'div' && ! $emptyUnit && $left[2] === $right[2]) {
- $targetUnit = '';
+ default:
+ $targetUnit = $left->unitless() ? $right[2] : $left[2];
}
- if ($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] = '';
+ if (! $left->unitless() && ! $right->unitless()) {
+ $left = $left->normalize();
+ $right = $right->normalize();
}
}
}
if (isset($out)) {
- if ($unitChange && $out[0] === 'number') {
- $out = $this->coerceUnit($out, $targetUnit);
+ if ($coerceUnit && $out[0] === Type::T_NUMBER) {
+ $out = $out->coerce($targetUnit);
}
return $out;
return $this->expToString($value);
- case 'unary':
+ case Type::T_UNARY:
list(, $op, $exp, $inParens) = $value;
$inExp = $inExp || $this->shouldEval($exp);
$exp = $this->reduce($exp);
- if ($exp[0] === 'number') {
+ if ($exp[0] === Type::T_NUMBER) {
switch ($op) {
case '+':
- return $exp;
+ return new Node\Number($exp[1], $exp[2]);
case '-':
- $exp[1] *= -1;
-
- return $exp;
+ return new Node\Number(-$exp[1], $exp[2]);
}
}
if ($op === 'not') {
if ($inExp || $inParens) {
- if ($exp === self::$false) {
+ if ($exp === self::$false || $exp === self::$null) {
return self::$true;
}
$op = $op . ' ';
}
- return array('string', '', array($op, $exp));
+ return [Type::T_STRING, '', [$op, $exp]];
- case 'var':
+ case Type::T_VARIABLE:
list(, $name) = $value;
return $this->reduce($this->get($name));
- case 'list':
+ case Type::T_LIST:
foreach ($value[2] as &$item) {
$item = $this->reduce($item);
}
return $value;
- case 'map':
+ case Type::T_MAP:
foreach ($value[1] as &$item) {
$item = $this->reduce($item);
}
return $value;
- case 'string':
+ case Type::T_STRING:
foreach ($value[2] as &$item) {
- if (is_array($item)) {
+ if (is_array($item) || $item instanceof \ArrayAccess) {
$item = $this->reduce($item);
}
}
return $value;
- case 'interpolate':
+ case Type::T_INTERPOLATE:
$value[1] = $this->reduce($value[1]);
return $value;
- case 'fncall':
+ case Type::T_FUNCTION_CALL:
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()
- );
+ return $this->fncall($name, $argValues);
- $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;
- }
+ default:
+ return $value;
+ }
+ }
- // need to flatten the arguments into a list
- $listArgs = array();
+ /**
+ * 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 $returnValue;
+ }
- foreach ((array)$argValues as $arg) {
- if (empty($arg[0])) {
- $listArgs[] = $this->reduce($arg[1]);
- }
- }
+ // native PHP functions
+ if ($this->callNativeFunction($name, $argValues, $returnValue)) {
+ return $returnValue;
+ }
- return array('function', $name, array('list', ',', $listArgs));
+ // for CSS functions, simply flatten the arguments into a list
+ $listArgs = [];
- default:
- return $value;
+ foreach ((array) $argValues as $arg) {
+ if (empty($arg[0])) {
+ $listArgs[] = $this->reduce($arg[1]);
+ }
}
+
+ return [Type::T_FUNCTION, $name, [Type::T_LIST, ',', $listArgs]];
}
/**
list($type) = $value;
switch ($type) {
- case 'list':
+ case Type::T_LIST:
$value = $this->extractInterpolation($value);
- if ($value[0] !== 'list') {
- return array('keyword', $this->compileValue($value));
+ if ($value[0] !== Type::T_LIST) {
+ return [Type::T_KEYWORD, $this->compileValue($value)];
}
foreach ($value[2] as $key => $item) {
return $value;
- case 'string':
- return array($type, '"', $this->compileStringContent($value));
+ case Type::T_STRING:
+ return [$type, '"', [$this->compileStringContent($value)]];
+
+ case Type::T_NUMBER:
+ return $value->normalize();
- case 'number':
- return $this->normalizeNumber($value);
+ case Type::T_INTERPOLATE:
+ return [Type::T_KEYWORD, $this->compileValue($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 $number;
- }
-
/**
* Add numbers
*
*/
protected function opAddNumberNumber($left, $right)
{
- return array('number', $left[1] + $right[1], $left[2]);
+ return new Node\Number($left[1] + $right[1], $left[2]);
}
/**
*/
protected function opMulNumberNumber($left, $right)
{
- return array('number', $left[1] * $right[1], $left[2]);
+ return new Node\Number($left[1] * $right[1], $left[2]);
}
/**
*/
protected function opSubNumberNumber($left, $right)
{
- return array('number', $left[1] - $right[1], $left[2]);
+ return new Node\Number($left[1] - $right[1], $left[2]);
}
/**
protected function opDivNumberNumber($left, $right)
{
if ($right[1] == 0) {
- $this->throwError('Division by zero');
+ return [Type::T_STRING, '', [$left[1] . $left[2] . '/' . $right[1] . $right[2]]];
}
- return array('number', $left[1] / $right[1], $left[2]);
+ return new Node\Number($left[1] / $right[1], $left[2]);
}
/**
*/
protected function opModNumberNumber($left, $right)
{
- return array('number', $left[1] % $right[1], $left[2]);
+ return new Node\Number($left[1] % $right[1], $left[2]);
}
/**
protected function opAdd($left, $right)
{
if ($strLeft = $this->coerceString($left)) {
- if ($right[0] === 'string') {
+ if ($right[0] === Type::T_STRING) {
$right[1] = '';
}
}
if ($strRight = $this->coerceString($right)) {
- if ($left[0] === 'string') {
+ if ($left[0] === Type::T_STRING) {
$left[1] = '';
}
return;
}
- if ($left !== self::$false) {
- return $right;
+ if ($left !== self::$false and $left !== self::$null) {
+ return $this->reduce($right, true);
}
return $left;
return;
}
- if ($left !== self::$false) {
+ if ($left !== self::$false and $left !== self::$null) {
return $left;
}
- return $right;
+ return $this->reduce($right, true);
}
/**
*/
protected function opColorColor($op, $left, $right)
{
- $out = array('color');
+ $out = [Type::T_COLOR];
- foreach (range(1, 3) as $i) {
+ foreach ([1, 2, 3] as $i) {
$lval = isset($left[$i]) ? $left[$i] : 0;
$rval = isset($right[$i]) ? $right[$i] : 0;
case '/':
if ($rval == 0) {
$this->throwError("color: Can't divide by zero");
+ break 2;
}
$out[] = (int) ($lval / $rval);
default:
$this->throwError("color: unknown op $op");
+ break 2;
}
}
return $this->opColorColor(
$op,
$left,
- array('color', $value, $value, $value)
+ [Type::T_COLOR, $value, $value, $value]
);
}
return $this->opColorColor(
$op,
- array('color', $value, $value, $value),
+ [Type::T_COLOR, $value, $value, $value],
$right
);
}
return $this->toBool($left[1] < $right[1]);
}
+ /**
+ * Three-way comparison, aka spaceship operator
+ *
+ * @param array $left
+ * @param array $right
+ *
+ * @return array
+ */
+ protected function opCmpNumberNumber($left, $right)
+ {
+ $n = $left[1] - $right[1];
+
+ return new Node\Number($n ? $n / abs($n) : 0, '');
+ }
+
/**
* Cast to boolean
*
list($type) = $value;
switch ($type) {
- case 'keyword':
+ case Type::T_KEYWORD:
return $value[1];
- case 'color':
+ case Type::T_COLOR:
// [1] - red component (either number for a %)
// [2] - green component
// [3] - blue component
return $h;
- case 'number':
- return round($value[1], $this->numberPrecision) . $value[2];
+ case Type::T_NUMBER:
+ return $value->output($this);
- case 'string':
+ case Type::T_STRING:
return $value[1] . $this->compileStringContent($value) . $value[1];
- case 'function':
+ case Type::T_FUNCTION:
$args = ! empty($value[2]) ? $this->compileValue($value[2]) : '';
return "$value[1]($args)";
- case 'list':
+ case Type::T_LIST:
$value = $this->extractInterpolation($value);
- if ($value[0] !== 'list') {
+ if ($value[0] !== Type::T_LIST) {
return $this->compileValue($value);
}
list(, $delim, $items) = $value;
- $filtered = array();
+ if ($delim !== ' ') {
+ $delim .= ' ';
+ }
+
+ $filtered = [];
foreach ($items as $item) {
- if ($item[0] === 'null') {
+ if ($item[0] === Type::T_NULL) {
continue;
}
$filtered[] = $this->compileValue($item);
}
- return implode("$delim ", $filtered);
+ return implode("$delim", $filtered);
- case 'map':
+ case Type::T_MAP:
$keys = $value[1];
$values = $value[2];
- $filtered = array();
+ $filtered = [];
for ($i = 0, $s = count($keys); $i < $s; $i++) {
$filtered[$this->compileValue($keys[$i])] = $this->compileValue($values[$i]);
return '(' . implode(', ', $filtered) . ')';
- case 'interpolated':
+ case Type::T_INTERPOLATED:
// node created by extractInterpolation
list(, $interpolate, $left, $right) = $value;
list(,, $whiteLeft, $whiteRight) = $interpolate;
return $left . $this->compileValue($interpolate) . $right;
- case 'interpolate':
+ 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 'string':
- $reduced = array('keyword', $this->compileStringContent($reduced));
+ case Type::T_STRING:
+ $reduced = [Type::T_KEYWORD, $this->compileStringContent($reduced)];
break;
- case 'null':
- $reduced = array('keyword', '');
+ case Type::T_NULL:
+ $reduced = [Type::T_KEYWORD, ''];
}
return $this->compileValue($reduced);
- case 'null':
+ case Type::T_NULL:
return 'null';
default:
*/
protected function compileStringContent($string)
{
- $parts = array();
+ $parts = [];
foreach ($string[2] as $part) {
- if (is_array($part)) {
+ if (is_array($part) || $part instanceof \ArrayAccess) {
$parts[] = $this->compileValue($part);
} else {
$parts[] = $part;
$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, $i + 1));
+ if ($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 array('interpolated', $item, $before, $after);
+ return [Type::T_INTERPOLATED, $item, $before, $after];
}
}
/**
* Find the final set of selectors
*
- * @param \stdClass $env
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
*
* @return array
*/
- protected function multiplySelectors($env)
+ protected function multiplySelectors(Environment $env)
{
- $envs = array();
+ $envs = $this->compactEnv($env);
+ $selectors = [];
+ $parentSelectors = [[]];
- while (null !== $env) {
- if (! empty($env->selectors)) {
- $envs[] = $env;
+ while ($env = array_pop($envs)) {
+ if (empty($env->selectors)) {
+ continue;
}
- $env = $env->parent;
- };
-
- $selectors = array();
- $parentSelectors = array(array());
-
- while ($env = array_pop($envs)) {
- $selectors = array();
+ $selectors = [];
foreach ($env->selectors as $selector) {
foreach ($parentSelectors as $parent) {
protected function joinSelectors($parent, $child)
{
$setSelf = false;
- $out = array();
+ $out = [];
foreach ($child as $part) {
- $newPart = array();
+ $newPart = [];
foreach ($part as $p) {
if ($p === self::$selfSelector) {
foreach ($parent as $i => $parentPart) {
if ($i > 0) {
$out[] = $newPart;
- $newPart = array();
+ $newPart = [];
}
foreach ($parentPart as $pp) {
/**
* Multiply media
*
- * @param \stdClass $env
- * @param array $childQueries
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
+ * @param array $childQueries
*
* @return array
*/
- protected function multiplyMedia($env, $childQueries = null)
+ protected function multiplyMedia(Environment $env = null, $childQueries = null)
{
if (! isset($env) ||
- ! empty($env->block->type) && $env->block->type !== 'media'
+ ! empty($env->block->type) && $env->block->type !== Type::T_MEDIA
) {
return $childQueries;
}
return $this->multiplyMedia($env->parent, $childQueries);
}
- $parentQueries = $env->block->queryList;
+ $parentQueries = isset($env->block->queryList)
+ ? $env->block->queryList
+ : [[[Type::T_MEDIA_VALUE, $env->block->value]]];
+
if ($childQueries === null) {
$childQueries = $parentQueries;
} else {
$originalQueries = $childQueries;
- $childQueries = array();
+ $childQueries = [];
foreach ($parentQueries as $parentQuery) {
foreach ($originalQueries as $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 \stdClass $block
+ * @param \Leafo\ScssPhp\Block $block
*
- * @return \stdClass
+ * @return \Leafo\ScssPhp\Compiler\Environment
*/
- protected function pushEnv($block = null)
+ protected function pushEnv(Block $block = null)
{
- $env = new \stdClass;
+ $env = new Environment;
$env->parent = $this->env;
- $env->store = array();
- $env->block = $block;
- $env->depth = isset($this->env->depth) ? $this->env->depth + 1 : 0;
+ $env->store = [];
+ $env->block = $block;
+ $env->depth = isset($this->env->depth) ? $this->env->depth + 1 : 0;
$this->env = $env;
*/
protected function popEnv()
{
- $env = $this->env;
$this->env = $this->env->parent;
-
- return $env;
}
/**
* Get store environment
*
- * @return \stdClass
+ * @return \Leafo\ScssPhp\Compiler\Environment
*/
protected function getStoreEnv()
{
/**
* Set variable
*
- * @param string $name
- * @param mixed $value
- * @param boolean $shadow
- * @param \stdClass $env
+ * @param string $name
+ * @param mixed $value
+ * @param boolean $shadow
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
*/
- protected function set($name, $value, $shadow = false, $env = null)
+ protected function set($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 {
/**
* Set existing variable
*
- * @param string $name
- * @param mixed $value
- * @param \stdClass $env
+ * @param string $name
+ * @param mixed $value
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
*/
- protected function setExisting($name, $value, $env = null)
+ protected function setExisting($name, $value, Environment $env)
{
- if (! isset($env)) {
- $env = $this->getStoreEnv();
- }
-
$storeEnv = $env;
$hasNamespace = $name[0] === '^' || $name[0] === '@' || $name[0] === '%';
/**
* Set raw variable
*
- * @param string $name
- * @param mixed $value
- * @param \stdClass $env
+ * @param string $name
+ * @param mixed $value
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
*/
- protected function setRaw($name, $value, $env = null)
+ protected function setRaw($name, $value, Environment $env)
{
- if (! isset($env)) {
- $env = $this->getStoreEnv();
- }
-
$env->store[$name] = $value;
}
*
* @api
*
- * @param string $name
- * @param boolean $shouldThrow
- * @param \stdClass $env
+ * @param string $name
+ * @param boolean $shouldThrow
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
*
* @return mixed
*/
- public function get($name, $shouldThrow = true, $env = null)
+ public function get($name, $shouldThrow = true, Environment $env = null)
{
- $name = $this->normalizeName($name);
+ $normalizedName = $this->normalizeName($name);
+ $specialContentKey = self::$namespaces['special'] . 'content';
if (! isset($env)) {
$env = $this->getStoreEnv();
}
- $hasNamespace = $name[0] === '^' || $name[0] === '@' || $name[0] === '%';
+ $nextIsRoot = false;
+ $hasNamespace = $normalizedName[0] === '^' || $normalizedName[0] === '@' || $normalizedName[0] === '%';
for (;;) {
- if (array_key_exists($name, $env->store)) {
- return $env->store[$name];
+ 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;
}
/**
* Has variable?
*
- * @param string $name
- * @param \stdClass $env
+ * @param string $name
+ * @param \Leafo\ScssPhp\Compiler\Environment $env
*
* @return boolean
*/
- protected function has($name, $env = null)
+ protected function has($name, Environment $env = null)
{
return $this->get($name, false, $env) !== null;
}
return;
}
- $parser = new Parser(__METHOD__, false);
+ $parser = $this->parserFactory(__METHOD__);
foreach ($args as $name => $strValue) {
if ($name[0] === '$') {
unset($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($path);
+ }
+ }
+
/**
* Returns list of parsed files
*
*/
public function setImportPaths($path)
{
- $this->importPaths = (array)$path;
+ $this->importPaths = (array) $path;
}
/**
*/
public function setNumberPrecision($numberPrecision)
{
- $this->numberPrecision = $numberPrecision;
+ Node\Number::$precision = $numberPrecision;
}
/**
*
* @param string $name
* @param callable $func
+ * @param array $prototype
*/
- public function registerFunction($name, $func)
+ public function registerFunction($name, $func, $prototype = null)
{
- $this->userFunctions[$this->normalizeName($name)] = $func;
+ $this->userFunctions[$this->normalizeName($name)] = [$func, $prototype];
}
/**
unset($this->userFunctions[$this->normalizeName($name)]);
}
+ /**
+ * Add feature
+ *
+ * @api
+ *
+ * @param string $name
+ */
+ public function addFeature($name)
+ {
+ $this->registeredFeatures[$name] = true;
+ }
+
/**
* Import file
*
$tree = $this->importCache[$realPath];
} else {
- $code = file_get_contents($path);
- $parser = new Parser($path, false);
- $tree = $parser->parse($code);
+ $code = file_get_contents($path);
+ $parser = $this->parserFactory($path);
+ $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);
+ $this->compileChildrenNoReturn($tree->children, $out);
array_shift($this->importPaths);
}
*/
public function findImport($url)
{
- $urls = array();
+ $urls = [];
// for "normal" scss imports (ignore vanilla css and external requests)
if (! preg_match('/\.css$|^https?:\/\//', $url)) {
// try both normal and the _partial filename
- $urls = array($url, preg_replace('/[^\/]+$/', '_\0', $url));
+ $urls = [$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;
+ $full = $dir
+ . (! empty($dir) && substr($dir, -1) !== '/' ? '/' : '')
+ . $full;
if ($this->fileExists($file = $full . '.scss') ||
$this->fileExists($file = $full)
}
} elseif (is_callable($dir)) {
// check custom callback for import path
- $file = call_user_func($dir, $url, $this);
+ $file = call_user_func($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)
*
*
* @param string $msg Message with optional sprintf()-style vararg parameters
*
- * @throws \Exception
+ * @throws \Leafo\ScssPhp\Exception\CompilerException
*/
public function throwError($msg)
{
+ if ($this->ignoreErrors) {
+ return;
+ }
+
if (func_num_args() > 1) {
$msg = call_user_func_array('sprintf', func_get_args());
}
- if ($this->sourcePos >= 0 && isset($this->sourceParser)) {
- $this->sourceParser->throwParseError($msg, $this->sourcePos);
- }
+ $line = $this->sourceLine;
+ $msg = "$msg: line: $line";
- throw new \Exception($msg);
+ throw new CompilerException($msg);
}
/**
*
* @throws \Exception
*/
- private function handleImportLoop($name)
+ protected function handleImportLoop($name)
{
for ($env = $this->env; $env; $env = $env->parent) {
- $file = $env->block->sourceParser->getSourceName();
+ $file = $this->sourceNames[$env->block->sourceIndex];
if (realpath($file) === $name) {
- $this->throwError(
- 'An @import loop has been found: %s imports %s',
- $this->env->block->sourceParser->getSourceName(),
- basename($file)
- );
+ $this->throwError('An @import loop has been found: %s imports %s', $file, basename($file));
+ break;
}
}
}
return is_file($name);
}
+ /**
+ * Call SCSS @function
+ *
+ * @param string $name
+ * @param array $args
+ * @param array $returnValue
+ *
+ * @return boolean Returns true if returnValue is set; otherwise, false
+ */
+ protected function callScssFunction($name, $argValues, &$returnValue)
+ {
+ $func = $this->get(self::$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) ? self::$defaultValue : $ret;
+
+ return true;
+ }
+
/**
* Call built-in and registered (PHP) functions
*
*
* @return boolean Returns true if returnValue is set; otherwise, false
*/
- protected function callBuiltin($name, $args, &$returnValue)
+ 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
- $fn = $this->userFunctions[$name];
-
- foreach ($args as &$val) {
- $val = $this->reduce($val[1], true);
- }
-
- $returnValue = call_user_func($fn, $args, $this);
+ list($f, $prototype) = $this->userFunctions[$name];
+ } elseif (($f = $this->getBuiltinFunction($name)) && is_callable($f)) {
+ $libName = $f[1];
+ $prototype = isset(self::$$libName) ? self::$$libName : null;
} else {
- $f = $this->getBuiltinFunction($name);
-
- if (is_callable($f)) {
- $libName = $f[1];
-
- $prototype = isset(self::$$libName) ? self::$$libName : null;
- $sorted = $this->sortArgs($prototype, $args);
+ return false;
+ }
- foreach ($sorted as &$val) {
- $val = $this->reduce($val, true);
- }
+ list($sorted, $kwargs) = $this->sortArgs($prototype, $args);
- $returnValue = call_user_func($f, $sorted, $this);
+ if ($name !== 'if' && $name !== 'call') {
+ foreach ($sorted as &$val) {
+ $val = $this->reduce($val, true);
}
}
- if (isset($returnValue)) {
- $returnValue = $this->coerceValue($returnValue);
+ $returnValue = call_user_func($f, $sorted, $kwargs);
- return true;
+ if (! isset($returnValue)) {
+ return false;
}
- return false;
+ $returnValue = $this->coerceValue($returnValue);
+
+ return true;
}
/**
ucfirst($name)
);
- return array($this, $libName);
+ return [$this, $libName];
}
/**
* Sorts keyword arguments
*
- * @todo Merge with applyArguments()?
- *
* @param array $prototype
* @param array $args
*
*/
protected function sortArgs($prototype, $args)
{
- $keyArgs = array();
- $posArgs = array();
+ $keyArgs = [];
+ $posArgs = [];
+ // separate positional and keyword arguments
foreach ($args as $arg) {
list($key, $value) = $arg;
}
if (! isset($prototype)) {
- return $posArgs;
+ return [$posArgs, $keyArgs];
}
- $finalArgs = array();
+ // copy positional args
+ $finalArgs = array_pad($posArgs, count($prototype), null);
+ // overwrite positional args with keyword args
foreach ($prototype as $i => $names) {
- if (isset($posArgs[$i])) {
- $finalArgs[] = $posArgs[$i];
- continue;
- }
-
- $set = false;
-
- foreach ((array)$names as $name) {
+ foreach ((array) $names as $name) {
if (isset($keyArgs[$name])) {
- $finalArgs[] = $keyArgs[$name];
- $set = true;
- break;
+ $finalArgs[$i] = $keyArgs[$name];
}
}
-
- if (! $set) {
- $finalArgs[] = null;
- }
}
- return $finalArgs;
+ return [$finalArgs, $keyArgs];
}
/**
{
$storeEnv = $this->getStoreEnv();
- $env = new \stdClass;
+ $env = new Environment;
$env->store = $storeEnv->store;
$hasVariable = false;
- $args = array();
+ $args = [];
foreach ($argDef as $i => $arg) {
list($name, $default, $isVariable) = $argDef[$i];
- $args[$name] = array($i, $name, $default, $isVariable);
+ $args[$name] = [$i, $name, $default, $isVariable];
$hasVariable |= $isVariable;
}
- $keywordArgs = array();
- $deferredKeywordArgs = array();
- $remaining = array();
+ $keywordArgs = [];
+ $deferredKeywordArgs = [];
+ $remaining = [];
// assign the keyword args
foreach ((array) $argValues as $arg) {
$deferredKeywordArgs[$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 ($val[0] === 'list') {
+ if ($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] = $item;
} else {
list($i, $name, $default, $isVariable) = $arg;
if ($isVariable) {
- $val = array('list', ',', array(), $isVariable);
+ $val = [Type::T_LIST, ',', [], $isVariable];
for ($count = count($remaining); $i < $count; $i++) {
$val[2][] = $remaining[$i];
continue;
} else {
$this->throwError("Missing argument $name");
+ break;
}
$this->set($name, $this->reduce($val, true), true, $env);
*/
private function coerceValue($value)
{
- if (is_array($value)) {
+ if (is_array($value) || $value instanceof \ArrayAccess) {
return $value;
}
if (is_bool($value)) {
- return $value ? self::$true : self::$false;
+ return $this->toBool($value);
}
if ($value === null) {
- $value = self::$null;
+ return self::$null;
}
if (is_numeric($value)) {
- return array('number', $value, '');
+ return new Node\Number($value, '');
}
if ($value === '') {
return self::$emptyString;
}
- return array('keyword', $value);
- }
+ if (preg_match('/^(#([0-9a-f]{6})|#([0-9a-f]{3}))$/i', $value, $m)) {
+ $color = [Type::T_COLOR];
- /**
- * Coerce unit on number to be normalized
- *
- * @param array $number
- * @param string $unit
- *
- * @return array
- */
- protected function coerceUnit($number, $unit)
- {
- list(, $value, $baseUnit) = $number;
+ if (isset($m[3])) {
+ $num = hexdec($m[3]);
- if (isset(self::$unitTable[$baseUnit][$unit])) {
- $value = $value * self::$unitTable[$baseUnit][$unit];
+ 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 array('number', $value, $unit);
+ return [Type::T_KEYWORD, $value];
}
/**
*/
protected function coerceMap($item)
{
- if ($item[0] === 'map') {
+ if ($item[0] === Type::T_MAP) {
return $item;
}
return self::$emptyMap;
}
- return array('map', array($item), array(self::$null));
+ return [Type::T_MAP, [$item], [self::$null]];
}
/**
*/
protected function coerceList($item, $delim = ',')
{
- if (isset($item) && $item[0] === 'list') {
+ if (isset($item) && $item[0] === Type::T_LIST) {
return $item;
}
- if (isset($item) && $item[0] === 'map') {
+ if (isset($item) && $item[0] === Type::T_MAP) {
$keys = $item[1];
$values = $item[2];
- $list = array();
+ $list = [];
for ($i = 0, $s = count($keys); $i < $s; $i++) {
$key = $keys[$i];
$value = $values[$i];
- $list[] = array('list', '', array(array('keyword', $this->compileValue($key)), $value));
+ $list[] = [
+ Type::T_LIST,
+ '',
+ [[Type::T_KEYWORD, $this->compileStringContent($this->coerceString($key))], $value]
+ ];
}
- return array('list', ',', $list);
+ return [Type::T_LIST, ',', $list];
}
- return array('list', $delim, ! isset($item) ? array(): array($item));
+ return [Type::T_LIST, $delim, ! isset($item) ? []: [$item]];
}
/**
protected function coerceColor($value)
{
switch ($value[0]) {
- case 'color':
+ case Type::T_COLOR:
return $value;
- case 'keyword':
+ case Type::T_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]);
+ ? [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) $rgba[2]];
}
return null;
*/
protected function coerceString($value)
{
- if ($value[0] === 'string') {
+ if ($value[0] === Type::T_STRING) {
return $value;
}
- return array('string', '', array($this->compileValue($value)));
+ return [Type::T_STRING, '', [$this->compileValue($value)]];
}
/**
*/
protected function coercePercent($value)
{
- if ($value[0] === 'number') {
- if ($value[2] === '%') {
+ if ($value[0] === Type::T_NUMBER) {
+ if (! empty($value[2]['%'])) {
return $value[1] / 100;
}
{
$value = $this->coerceMap($value);
- if ($value[0] !== 'map') {
+ if ($value[0] !== Type::T_MAP) {
$this->throwError('expecting map');
}
*/
public function assertList($value)
{
- if ($value[0] !== 'list') {
+ if ($value[0] !== Type::T_LIST) {
$this->throwError('expecting list');
}
*/
public function assertNumber($value)
{
- if ($value[0] !== 'number') {
+ if ($value[0] !== Type::T_NUMBER) {
$this->throwError('expecting number');
}
*/
protected function fixColor($c)
{
- foreach (range(1, 3) as $i) {
+ foreach ([1, 2, 3] as $i) {
if ($c[$i] < 0) {
$c[$i] = 0;
}
}
}
- return array('hsl', fmod($h, 360), $s * 100, $l / 5.1);
+ return [Type::T_HSL, fmod($h, 360), $s * 100, $l / 5.1];
}
/**
$g = $this->hueToRGB($m1, $m2, $h) * 255;
$b = $this->hueToRGB($m1, $m2, $h - 1/3) * 255;
- $out = array('color', $r, $g, $b);
+ $out = [Type::T_COLOR, $r, $g, $b];
return $out;
}
// Built in functions
- protected static $libIf = array('condition', 'if-true', 'if-false');
+ //protected static $libCall = ['name', 'args...'];
+ protected function libCall($args, $kwargs)
+ {
+ $name = $this->compileStringContent($this->coerceString($this->reduce(array_shift($args), true)));
+
+ $args = array_map(
+ function ($a) {
+ return [null, $a, false];
+ },
+ $args
+ );
+
+ if (count($kwargs)) {
+ foreach ($kwargs as $key => $value) {
+ $args[] = [[Type::T_VARIABLE, $key], $value, false];
+ }
+ }
+
+ return $this->reduce([Type::T_FUNCTION_CALL, $name, $args]);
+ }
+
+ protected static $libIf = ['condition', 'if-true', 'if-false'];
protected function libIf($args)
{
list($cond, $t, $f) = $args;
- if (! $this->isTruthy($cond)) {
- return $f;
+ if (! $this->isTruthy($this->reduce($cond, true))) {
+ return $this->reduce($f, true);
}
- return $t;
+ return $this->reduce($t, true);
}
- protected static $libIndex = array('list', 'value');
+ protected static $libIndex = ['list', 'value'];
protected function libIndex($args)
{
list($list, $value) = $args;
- if ($value[0] === 'map') {
+ if ($value[0] === Type::T_MAP) {
return self::$null;
}
- if ($list[0] === 'map') {
+ if ($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 ($list[0] !== 'list') {
+ if ($list[0] !== Type::T_LIST) {
return self::$null;
}
- $values = array();
+ $values = [];
foreach ($list[2] as $item) {
$values[] = $this->normalizeValue($item);
return false === $key ? self::$null : $key + 1;
}
- protected static $libRgb = array('red', 'green', 'blue');
+ protected static $libRgb = ['red', 'green', 'blue'];
protected function libRgb($args)
{
list($r, $g, $b) = $args;
- return array('color', $r[1], $g[1], $b[1]);
+ return [Type::T_COLOR, $r[1], $g[1], $b[1]];
}
- protected static $libRgba = array(
- array('red', 'color'),
- 'green', 'blue', 'alpha');
+ protected static $libRgba = [
+ ['red', 'color'],
+ 'green', 'blue', 'alpha'];
protected function libRgba($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] = $alpha;
list($r, $g, $b, $a) = $args;
- return array('color', $r[1], $g[1], $b[1], $a[1]);
+ return [Type::T_COLOR, $r[1], $g[1], $b[1], $a[1]];
}
// helper function for adjust_color, change_color, and scale_color
{
$color = $this->assertColor($args[0]);
- // workaround https://github.com/facebook/hhvm/issues/5457
- reset($args);
-
- foreach (array(1, 2, 3, 7) as $i) {
+ foreach ([1, 2, 3, 7] as $i) {
if (isset($args[$i])) {
$val = $this->assertNumber($args[$i]);
$ii = $i === 7 ? 4 : $i; // alpha
if (isset($args[4]) || isset($args[5]) || isset($args[6])) {
$hsl = $this->toHSL($color[1], $color[2], $color[3]);
- foreach (array(4, 5, 6) as $i) {
+ 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);
return $color;
}
- protected static $libAdjustColor = array(
+ protected static $libAdjustColor = [
'color', 'red', 'green', 'blue',
'hue', 'saturation', 'lightness', 'alpha'
- );
+ ];
protected function libAdjustColor($args)
{
return $this->alterColor($args, function ($base, $alter, $i) {
});
}
- protected static $libChangeColor = array(
+ protected static $libChangeColor = [
'color', 'red', 'green', 'blue',
'hue', 'saturation', 'lightness', 'alpha'
- );
+ ];
protected function libChangeColor($args)
{
return $this->alterColor($args, function ($base, $alter, $i) {
});
}
- protected static $libScaleColor = array(
+ protected static $libScaleColor = [
'color', 'red', 'green', 'blue',
'hue', 'saturation', 'lightness', 'alpha'
- );
+ ];
protected function libScaleColor($args)
{
return $this->alterColor($args, function ($base, $scale, $i) {
});
}
- protected static $libIeHexStr = array('color');
+ protected static $libIeHexStr = ['color'];
protected function libIeHexStr($args)
{
$color = $this->coerceColor($args[0]);
- $color[4] = isset($color[4]) ? round(255*$color[4]) : 255;
+ $color[4] = isset($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 static $libRed = ['color'];
protected function libRed($args)
{
$color = $this->coerceColor($args[0]);
return $color[1];
}
- protected static $libGreen = array('color');
+ protected static $libGreen = ['color'];
protected function libGreen($args)
{
$color = $this->coerceColor($args[0]);
return $color[2];
}
- protected static $libBlue = array('color');
+ protected static $libBlue = ['color'];
protected function libBlue($args)
{
$color = $this->coerceColor($args[0]);
return $color[3];
}
- protected static $libAlpha = array('color');
+ protected static $libAlpha = ['color'];
protected function libAlpha($args)
{
if ($color = $this->coerceColor($args[0])) {
return null;
}
- protected static $libOpacity = array('color');
+ protected static $libOpacity = ['color'];
protected function libOpacity($args)
{
$value = $args[0];
- if ($value[0] === 'number') {
+ if ($value[0] === Type::T_NUMBER) {
return null;
}
}
// mix two colors
- protected static $libMix = array('color-1', 'color-2', 'weight');
+ protected static $libMix = ['color-1', 'color-2', 'weight'];
protected function libMix($args)
{
list($first, $second, $weight) = $args;
$w1 = (($w * $a === -1 ? $w : ($w + $a) / (1 + $w * $a)) + 1) / 2.0;
$w2 = 1.0 - $w1;
- $new = array('color',
+ $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 + $secondAlpha * ($weight - 1);
return $this->fixColor($new);
}
- protected static $libHsl = array('hue', 'saturation', 'lightness');
+ 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 = array('hue', 'saturation',
- 'lightness', 'alpha');
+ protected static $libHsla = ['hue', 'saturation', 'lightness', 'alpha'];
protected function libHsla($args)
{
list($h, $s, $l, $a) = $args;
return $color;
}
- protected static $libHue = array('color');
+ protected static $libHue = ['color'];
protected function libHue($args)
{
$color = $this->assertColor($args[0]);
$hsl = $this->toHSL($color[1], $color[2], $color[3]);
- return array('number', $hsl[1], 'deg');
+ return new Node\Number($hsl[1], 'deg');
}
- protected static $libSaturation = array('color');
+ protected static $libSaturation = ['color'];
protected function libSaturation($args)
{
$color = $this->assertColor($args[0]);
$hsl = $this->toHSL($color[1], $color[2], $color[3]);
- return array('number', $hsl[2], '%');
+ return new Node\Number($hsl[2], '%');
}
- protected static $libLightness = array('color');
+ protected static $libLightness = ['color'];
protected function libLightness($args)
{
$color = $this->assertColor($args[0]);
$hsl = $this->toHSL($color[1], $color[2], $color[3]);
- return array('number', $hsl[3], '%');
+ return new Node\Number($hsl[3], '%');
}
protected function adjustHsl($color, $idx, $amount)
return $out;
}
- protected static $libAdjustHue = array('color', 'degrees');
+ protected static $libAdjustHue = ['color', 'degrees'];
protected function libAdjustHue($args)
{
$color = $this->assertColor($args[0]);
return $this->adjustHsl($color, 1, $degrees);
}
- protected static $libLighten = array('color', 'amount');
+ protected static $libLighten = ['color', 'amount'];
protected function libLighten($args)
{
$color = $this->assertColor($args[0]);
return $this->adjustHsl($color, 3, $amount);
}
- protected static $libDarken = array('color', 'amount');
+ protected static $libDarken = ['color', 'amount'];
protected function libDarken($args)
{
$color = $this->assertColor($args[0]);
return $this->adjustHsl($color, 3, -$amount);
}
- protected static $libSaturate = array('color', 'amount');
+ protected static $libSaturate = ['color', 'amount'];
protected function libSaturate($args)
{
$value = $args[0];
- if ($value[0] === 'number') {
+ if ($value[0] === Type::T_NUMBER) {
return null;
}
$color = $this->assertColor($value);
- $amount = 100*$this->coercePercent($args[1]);
+ $amount = 100 * $this->coercePercent($args[1]);
return $this->adjustHsl($color, 2, $amount);
}
- protected static $libDesaturate = array('color', 'amount');
+ protected static $libDesaturate = ['color', 'amount'];
protected function libDesaturate($args)
{
$color = $this->assertColor($args[0]);
- $amount = 100*$this->coercePercent($args[1]);
+ $amount = 100 * $this->coercePercent($args[1]);
return $this->adjustHsl($color, 2, -$amount);
}
- protected static $libGrayscale = array('color');
+ protected static $libGrayscale = ['color'];
protected function libGrayscale($args)
{
$value = $args[0];
- if ($value[0] === 'number') {
+ if ($value[0] === Type::T_NUMBER) {
return null;
}
return $this->adjustHsl($this->assertColor($value), 2, -100);
}
- protected static $libComplement = array('color');
+ protected static $libComplement = ['color'];
protected function libComplement($args)
{
return $this->adjustHsl($this->assertColor($args[0]), 1, 180);
}
- protected static $libInvert = array('color');
+ protected static $libInvert = ['color'];
protected function libInvert($args)
{
$value = $args[0];
- if ($value[0] === 'number') {
+ if ($value[0] === Type::T_NUMBER) {
return null;
}
}
// increases opacity by amount
- protected static $libOpacify = array('color', 'amount');
+ protected static $libOpacify = ['color', 'amount'];
protected function libOpacify($args)
{
$color = $this->assertColor($args[0]);
return $color;
}
- protected static $libFadeIn = array('color', 'amount');
+ protected static $libFadeIn = ['color', 'amount'];
protected function libFadeIn($args)
{
return $this->libOpacify($args);
}
// decreases opacity by amount
- protected static $libTransparentize = array('color', 'amount');
+ protected static $libTransparentize = ['color', 'amount'];
protected function libTransparentize($args)
{
$color = $this->assertColor($args[0]);
return $color;
}
- protected static $libFadeOut = array('color', 'amount');
+ protected static $libFadeOut = ['color', 'amount'];
protected function libFadeOut($args)
{
return $this->libTransparentize($args);
}
- protected static $libUnquote = array('string');
+ protected static $libUnquote = ['string'];
protected function libUnquote($args)
{
$str = $args[0];
- if ($str[0] === 'string') {
+ if ($str[0] === Type::T_STRING) {
$str[1] = '';
}
return $str;
}
- protected static $libQuote = array('string');
+ protected static $libQuote = ['string'];
protected function libQuote($args)
{
$value = $args[0];
- if ($value[0] === 'string' && ! empty($value[1])) {
+ if ($value[0] === Type::T_STRING && ! empty($value[1])) {
return $value;
}
- return array('string', '"', array($value));
+ return [Type::T_STRING, '"', [$value]];
}
- protected static $libPercentage = array('value');
+ protected static $libPercentage = ['value'];
protected function libPercentage($args)
{
- return array('number',
- $this->coercePercent($args[0]) * 100,
- '%');
+ return new Node\Number($this->coercePercent($args[0]) * 100, '%');
}
- protected static $libRound = array('value');
+ protected static $libRound = ['value'];
protected function libRound($args)
{
$num = $args[0];
return $num;
}
- protected static $libFloor = array('value');
+ protected static $libFloor = ['value'];
protected function libFloor($args)
{
$num = $args[0];
return $num;
}
- protected static $libCeil = array('value');
+ protected static $libCeil = ['value'];
protected function libCeil($args)
{
$num = $args[0];
return $num;
}
- protected static $libAbs = array('value');
+ protected static $libAbs = ['value'];
protected function libAbs($args)
{
$num = $args[0];
foreach ($numbers as $key => $number) {
if (null === $min || $number[1] <= $min[1]) {
- $min = array($key, $number[1]);
+ $min = [$key, $number[1]];
}
}
foreach ($numbers as $key => $number) {
if (null === $max || $number[1] >= $max[1]) {
- $max = array($key, $number[1]);
+ $max = [$key, $number[1]];
}
}
{
$unit = null;
$originalUnit = null;
- $numbers = array();
+ $numbers = [];
foreach ($args as $key => $item) {
- if ('number' !== $item[0]) {
+ if ($item[0] !== Type::T_NUMBER) {
$this->throwError('%s is not a number', $item[0]);
+ break;
}
- $number = $this->normalizeNumber($item);
+ $number = $item->normalize();
if (null === $unit) {
$unit = $number[2];
- $originalUnit = $item[2];
+ $originalUnit = $item->unitStr();
} elseif ($unit !== $number[2]) {
- $this->throwError('Incompatible units: "%s" and "%s".', $originalUnit, $item[2]);
+ $this->throwError('Incompatible units: "%s" and "%s".', $originalUnit, $item->unitStr());
+ break;
}
$numbers[$key] = $number;
return $numbers;
}
- protected static $libLength = array('list');
+ protected static $libLength = ['list'];
protected function libLength($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 static $libListSeparator = ['list...'];
protected function libListSeparator($args)
{
if (count($args) > 1) {
return 'space';
}
- protected static $libNth = array('list', 'n');
+ protected static $libNth = ['list', 'n'];
protected function libNth($args)
{
$list = $this->coerceList($args[0]);
- $n = $this->assertNumber($args[1]) - 1;
+ $n = $this->assertNumber($args[1]);
+
+ if ($n > 0) {
+ $n--;
+ } elseif ($n < 0) {
+ $n += count($list[2]);
+ }
return isset($list[2][$n]) ? $list[2][$n] : self::$defaultValue;
}
- protected static $libSetNth = array('list', 'n', 'value');
+ protected static $libSetNth = ['list', 'n', 'value'];
protected function libSetNth($args)
{
$list = $this->coerceList($args[0]);
- $n = $this->assertNumber($args[1]) - 1;
+ $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 = array('map', 'key');
+ 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 === $this->compileValue($map[1][$i])) {
+ if ($key === $this->compileStringContent($this->coerceString($map[1][$i]))) {
return $map[2][$i];
}
}
return self::$null;
}
- protected static $libMapKeys = array('map');
+ protected static $libMapKeys = ['map'];
protected function libMapKeys($args)
{
$map = $this->assertMap($args[0]);
-
$keys = $map[1];
- return array('list', ',', $keys);
+ return [Type::T_LIST, ',', $keys];
}
- protected static $libMapValues = array('map');
+ protected static $libMapValues = ['map'];
protected function libMapValues($args)
{
$map = $this->assertMap($args[0]);
-
$values = $map[2];
- return array('list', ',', $values);
+ return [Type::T_LIST, ',', $values];
}
- protected static $libMapRemove = array('map', 'key');
+ 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 === $this->compileValue($map[1][$i])) {
+ if ($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 = array('map', 'key');
+ 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 === $this->compileValue($map[1][$i])) {
- return self::$true;
+ if ($key === $this->compileStringContent($this->coerceString($map[1][$i]))) {
+ return true;
}
}
- return self::$false;
+ return false;
}
- protected static $libMapMerge = array('map-1', 'map-2');
+ protected static $libMapMerge = ['map-1', 'map-2'];
protected function libMapMerge($args)
{
$map1 = $this->assertMap($args[0]);
$map2 = $this->assertMap($args[1]);
- return array('map', array_merge($map1[1], $map2[1]), array_merge($map1[2], $map2[2]));
+ return [Type::T_MAP, array_merge($map1[1], $map2[1]), array_merge($map1[2], $map2[2])];
+ }
+
+ 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)
}
}
- protected static $libJoin = array('list1', 'list2', 'separator');
+ protected static $libJoin = ['list1', 'list2', 'separator'];
protected function libJoin($args)
{
list($list1, $list2, $sep) = $args;
$list2 = $this->coerceList($list2, ' ');
$sep = $this->listSeparatorForJoin($list1, $sep);
- return array('list', $sep, array_merge($list1[2], $list2[2]));
+ return [Type::T_LIST, $sep, array_merge($list1[2], $list2[2])];
}
- protected static $libAppend = array('list', 'val', 'separator');
+ 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 array('list', $sep, array_merge($list1[2], array($value)));
+ return [Type::T_LIST, $sep, array_merge($list1[2], [$value])];
}
protected function libZip($args)
$this->assertList($arg);
}
- $lists = array();
+ $lists = [];
$firstList = array_shift($args);
foreach ($firstList[2] as $key => $item) {
- $list = array('list', '', array($item));
+ $list = [Type::T_LIST, '', [$item]];
foreach ($args as $arg) {
if (isset($arg[2][$key])) {
break 2;
}
}
+
$lists[] = $list;
}
- return array('list', ',', $lists);
+ return [Type::T_LIST, ',', $lists];
}
- protected static $libTypeOf = array('value');
+ protected static $libTypeOf = ['value'];
protected function libTypeOf($args)
{
$value = $args[0];
switch ($value[0]) {
- case 'keyword':
+ case Type::T_KEYWORD:
if ($value === self::$true || $value === self::$false) {
return 'bool';
}
}
// fall-thru
- case 'function':
+ case Type::T_FUNCTION:
return 'string';
- case 'list':
+ case Type::T_LIST:
if (isset($value[3]) && $value[3]) {
return 'arglist';
}
}
}
- protected static $libUnit = array('number');
+ protected static $libUnit = ['number'];
protected function libUnit($args)
{
$num = $args[0];
- if ($num[0] === 'number') {
- return array('string', '"', array($num[2]));
+ if ($num[0] === Type::T_NUMBER) {
+ return [Type::T_STRING, '"', [$num->unitStr()]];
}
return '';
}
- protected static $libUnitless = array('number');
+ protected static $libUnitless = ['number'];
protected function libUnitless($args)
{
$value = $args[0];
- return $value[0] === 'number' && empty($value[2]);
+ return $value[0] === Type::T_NUMBER && $value->unitless();
}
- protected static $libComparable = array('number-1', 'number-2');
+ protected static $libComparable = ['number-1', 'number-2'];
protected function libComparable($args)
{
list($number1, $number2) = $args;
- if (! isset($number1[0]) || $number1[0] !== 'number' || ! isset($number2[0]) || $number2[0] !== 'number') {
+ if (! isset($number1[0]) || $number1[0] !== Type::T_NUMBER ||
+ ! isset($number2[0]) || $number2[0] !== Type::T_NUMBER
+ ) {
$this->throwError('Invalid argument(s) for "comparable"');
+
+ return;
}
- $number1 = $this->normalizeNumber($number1);
- $number2 = $this->normalizeNumber($number2);
+ $number1 = $number1->normalize();
+ $number2 = $number2->normalize();
- return $number1[2] === $number2[2] || $number1[2] === '' || $number2[2] === '';
+ return $number1[2] === $number2[2] || $number1->unitless() || $number2->unitless();
}
- protected static $libStrIndex = array('string', 'substring');
+ protected static $libStrIndex = ['string', 'substring'];
protected function libStrIndex($args)
{
$string = $this->coerceString($args[0]);
$result = strpos($stringContent, $substringContent);
- return $result === false ? self::$null : array('number', $result + 1, '');
+ return $result === false ? self::$null : new Node\Number($result + 1, '');
}
- protected static $libStrInsert = array('string', 'insert', 'index');
+ protected static $libStrInsert = ['string', 'insert', 'index'];
protected function libStrInsert($args)
{
$string = $this->coerceString($args[0]);
list(, $index) = $args[2];
- $string[2] = array(substr_replace($stringContent, $insertContent, $index - 1, 0));
+ $string[2] = [substr_replace($stringContent, $insertContent, $index - 1, 0)];
return $string;
}
- protected static $libStrLength = array('string');
+ protected static $libStrLength = ['string'];
protected function libStrLength($args)
{
$string = $this->coerceString($args[0]);
$stringContent = $this->compileStringContent($string);
- return array('number', strlen($stringContent), '');
+ return new Node\Number(strlen($stringContent), '');
}
- protected static $libStrSlice = array('string', 'start-at', 'end-at');
+ protected static $libStrSlice = ['string', 'start-at', 'end-at'];
protected function libStrSlice($args)
{
- if ($args[2][1] == 0) {
- return self::$emptyString;
+ if (isset($args[2]) && $args[2][1] == 0) {
+ return self::$nullString;
}
$string = $this->coerceString($args[0]);
$stringContent = $this->compileStringContent($string);
- $start = (int) $args[1][1] ?: 1;
- $end = (int) $args[2][1];
+ $start = (int) $args[1][1];
- $string[2] = array(substr($stringContent, $start - 1, $end < 0 ? $end : $end - $start + 1));
+ if ($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 = array('string');
+ protected static $libToLowerCase = ['string'];
protected function libToLowerCase($args)
{
$string = $this->coerceString($args[0]);
$stringContent = $this->compileStringContent($string);
- $string[2] = array(mb_strtolower($stringContent));
+ $string[2] = [mb_strtolower($stringContent)];
return $string;
}
- protected static $libToUpperCase = array('string');
+ protected static $libToUpperCase = ['string'];
protected function libToUpperCase($args)
{
$string = $this->coerceString($args[0]);
$stringContent = $this->compileStringContent($string);
- $string[2] = array(mb_strtoupper($stringContent));
+ $string[2] = [mb_strtoupper($stringContent)];
return $string;
}
- protected static $libFeatureExists = array('feature');
+ protected static $libFeatureExists = ['feature'];
protected function libFeatureExists($args)
{
- /*
- * The following features not not (yet) supported:
- * - global-variable-shadowing
- * - extend-selector-pseudoclass
- * - units-level-3
- * - at-error
- */
- return self::$false;
+ $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 = array('name');
+ protected static $libFunctionExists = ['name'];
protected function libFunctionExists($args)
{
$string = $this->coerceString($args[0]);
// user defined functions
if ($this->has(self::$namespaces['function'] . $name)) {
- return self::$true;
+ return true;
}
$name = $this->normalizeName($name);
if (isset($this->userFunctions[$name])) {
- return self::$true;
+ return true;
}
// built-in functions
return $this->toBool(is_callable($f));
}
- protected static $libGlobalVariableExists = array('name');
+ protected static $libGlobalVariableExists = ['name'];
protected function libGlobalVariableExists($args)
{
$string = $this->coerceString($args[0]);
$name = $this->compileStringContent($string);
- return $this->has($name, $this->rootEnv) ? self::$true : self::$false;
+ return $this->has($name, $this->rootEnv);
}
- protected static $libMixinExists = array('name');
+ protected static $libMixinExists = ['name'];
protected function libMixinExists($args)
{
$string = $this->coerceString($args[0]);
$name = $this->compileStringContent($string);
- return $this->has(self::$namespaces['mixin'] . $name) ? self::$true : self::$false;
+ return $this->has(self::$namespaces['mixin'] . $name);
}
- protected static $libVariableExists = array('name');
+ protected static $libVariableExists = ['name'];
protected function libVariableExists($args)
{
$string = $this->coerceString($args[0]);
$name = $this->compileStringContent($string);
- return $this->has($name) ? self::$true : self::$false;
+ return $this->has($name);
}
/**
*/
protected function libCounter($args)
{
- $list = array_map(array($this, 'compileValue'), $args);
+ $list = array_map([$this, 'compileValue'], $args);
- return array('string', '', array('counter(' . implode(',', $list) . ')'));
+ return [Type::T_STRING, '', ['counter(' . implode(',', $list) . ')']];
}
+ protected static $libRandom = ['limit'];
protected function libRandom($args)
{
if (isset($args[0])) {
if ($n < 1) {
$this->throwError("limit must be greater than or equal to 1");
+
+ return;
}
- return array('number', mt_rand(1, $n), '');
+ return new Node\Number(mt_rand(1, $n), '');
}
- return array('number', mt_rand(1, mt_getrandmax()), '');
+ return new Node\Number(mt_rand(1, mt_getrandmax()), '');
}
protected function libUniqueId()
$id += mt_rand(0, 10) + 1;
- return array('string', '', array('u' . str_pad(base_convert($id, 10, 36), 8, '0', STR_PAD_LEFT)));
+ 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 ($args[0] === self::$null) {
+ return [Type::T_KEYWORD, 'null'];
+ }
+
+ return $args[0];
}
}
namespace Leafo\ScssPhp;
+use Leafo\ScssPhp\Block;
use Leafo\ScssPhp\Compiler;
+use Leafo\ScssPhp\Exception\ParserException;
+use Leafo\ScssPhp\Node;
+use Leafo\ScssPhp\Type;
/**
- * SCSS parser
+ * Parser
*
* @author Leaf Corcoran <leafot@gmail.com>
*/
class Parser
{
- const SOURCE_POSITION = -1;
- const SOURCE_PARSER = -2;
+ const SOURCE_INDEX = -1;
+ const SOURCE_LINE = -2;
+ const SOURCE_COLUMN = -3;
/**
* @var array
*/
- protected static $precedence = array(
- '=' => 0,
- 'or' => 1,
+ protected static $precedence = [
+ '=' => 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;
+ '==' => 3,
+ '!=' => 3,
+ '<=>' => 3,
+ '<=' => 4,
+ '>=' => 4,
+ '<' => 4,
+ '>' => 4,
+ '+' => 5,
+ '-' => 5,
+ '*' => 6,
+ '/' => 6,
+ '%' => 6,
+ ];
+
+ protected static $commentPattern;
+ protected static $operatorPattern;
protected static $whitePattern;
- protected static $commentMulti;
-
- protected static $commentSingle = '//';
- protected static $commentMultiLeft = '/*';
- protected static $commentMultiRight = '*/';
private $sourceName;
- private $rootParser;
+ 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 boolean $rootParser
+ * @param integer $sourceIndex
+ * @param string $encoding
*/
- public function __construct($sourceName = null, $rootParser = true)
+ public function __construct($sourceName, $sourceIndex = 0, $encoding = 'utf-8')
{
- $this->sourceName = $sourceName;
- $this->rootParser = $rootParser;
- $this->charset = null;
+ $this->sourceName = $sourceName ?: '(stdin)';
+ $this->sourceIndex = $sourceIndex;
+ $this->charset = null;
+ $this->utf8 = ! $encoding || strtolower($encoding) === 'utf-8';
+ $this->patternModifiers = $this->utf8 ? 'Aisu' : 'Ais';
- if (empty(self::$operatorStr)) {
- self::$operatorStr = $this->makeOperatorStr(self::$operators);
+ if (empty(self::$operatorPattern)) {
+ self::$operatorPattern = '([*\/%+-]|[!=]\=|\>\=?|\<\=\>|\<\=?|and|or)';
- $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';
+ $commentSingle = '\/\/';
+ $commentMultiLeft = '\/\*';
+ $commentMultiRight = '\*\/';
+
+ self::$commentPattern = $commentMultiLeft . '.*?' . $commentMultiRight;
+ self::$whitePattern = $this->utf8
+ ? '/' . $commentSingle . '[^\n]*\s*|(' . self::$commentPattern . ')\s*|\s+/AisuS'
+ : '/' . $commentSingle . '[^\n]*\s*|(' . self::$commentPattern . ')\s*|\s+/AisS';
}
}
/**
- * Make operator regex
+ * Get source file name
*
- * @param array $operators
+ * @api
*
* @return string
*/
- protected static function makeOperatorStr($operators)
+ public function getSourceName()
+ {
+ return $this->sourceName;
+ }
+
+ /**
+ * Throw parser error
+ *
+ * @api
+ *
+ * @param string $msg
+ *
+ * @throws \Leafo\ScssPhp\Exception\ParserException
+ */
+ public function throwParseError($msg = 'parse error')
{
- return '('
- . implode('|', array_map(array('Leafo\ScssPhp\Parser', 'pregQuote'), $operators))
- . ')';
+ list($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
*
- * @param string $buffer;
+ * @api
*
- * @return \stdClass
+ * @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->buffer = $buffer;
- $this->pushBlock(null); // root block
+ $this->saveEncoding();
+ $this->extractLineNumbers($buffer);
+ $this->pushBlock(null); // root block
$this->whitespace();
$this->pushBlock(null);
$this->popBlock();
- while (false !== $this->parseChunk()) {
+ while ($this->parseChunk()) {
;
}
$this->env->isRoot = true;
+ $this->restoreEncoding();
+
return $this->env;
}
/**
* Parse a value or value list
*
+ * @api
+ *
* @param string $buffer
* @param string $out
*
$this->eatWhiteDefault = true;
$this->buffer = (string) $buffer;
- return $this->valueList($out);
+ $this->saveEncoding();
+
+ $list = $this->valueList($out);
+
+ $this->restoreEncoding();
+
+ return $list;
}
/**
* Parse a selector or selector list
*
+ * @api
+ *
* @param string $buffer
* @param string $out
*
$this->eatWhiteDefault = true;
$this->buffer = (string) $buffer;
- return $this->selectors($out);
+ $this->saveEncoding();
+
+ $selector = $this->selectors($out);
+
+ $this->restoreEncoding();
+
+ return $selector;
}
/**
// the directives
if (isset($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('media', $s);
+ $media = $this->pushSpecialBlock(Type::T_MEDIA, $s);
$media->queryList = $mediaQueryList[2];
return true;
($this->argumentDef($args) || true) &&
$this->literal('{')
) {
- $mixin = $this->pushSpecialBlock('mixin', $s);
+ $mixin = $this->pushSpecialBlock(Type::T_MIXIN, $s);
$mixin->name = $mixinName;
$mixin->args = $args;
($this->end() ||
$this->literal('{') && $hasBlock = true)
) {
- $child = array('include',
- $mixinName, isset($argValues) ? $argValues : null, null);
+ $child = [Type::T_INCLUDE, $mixinName, isset($argValues) ? $argValues : null, null];
if (! empty($hasBlock)) {
- $include = $this->pushSpecialBlock('include', $s);
+ $include = $this->pushSpecialBlock(Type::T_INCLUDE, $s);
$include->child = $child;
} else {
$this->append($child, $s);
$this->seek($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(array('import', $importPath), $s);
+ $this->append([Type::T_IMPORT, $importPath], $s);
return true;
}
$this->url($importPath) &&
$this->end()
) {
- $this->append(array('import', $importPath), $s);
+ $this->append([Type::T_IMPORT, $importPath], $s);
return true;
}
$this->seek($s);
if ($this->literal('@extend') &&
- $this->selectors($selector) &&
+ $this->selectors($selectors) &&
$this->end()
) {
- $this->append(array('extend', $selector), $s);
+ // check for '!flag'
+ $optional = $this->stripOptionalFlag($selectors);
+ $this->append([Type::T_EXTEND, $selectors, $optional], $s);
return true;
}
$this->argumentDef($args) &&
$this->literal('{')
) {
- $func = $this->pushSpecialBlock('function', $s);
+ $func = $this->pushSpecialBlock(Type::T_FUNCTION, $s);
$func->name = $fnName;
$func->args = $args;
$this->seek($s);
- if ($this->literal('@return') && $this->valueList($retVal) && $this->end()) {
- $this->append(array('return', $retVal), $s);
+ if ($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;
}
$this->valueList($list) &&
$this->literal('{')
) {
- $each = $this->pushSpecialBlock('each', $s);
+ $each = $this->pushSpecialBlock(Type::T_EACH, $s);
foreach ($varNames[2] as $varName) {
$each->vars[] = $varName[1];
$this->expression($cond) &&
$this->literal('{')
) {
- $while = $this->pushSpecialBlock('while', $s);
+ $while = $this->pushSpecialBlock(Type::T_WHILE, $s);
$while->cond = $cond;
return true;
$this->expression($end) &&
$this->literal('{')
) {
- $for = $this->pushSpecialBlock('for', $s);
+ $for = $this->pushSpecialBlock(Type::T_FOR, $s);
$for->var = $varName[1];
$for->start = $start;
$for->end = $end;
$this->seek($s);
if ($this->literal('@if') && $this->valueList($cond) && $this->literal('{')) {
- $if = $this->pushSpecialBlock('if', $s);
+ $if = $this->pushSpecialBlock(Type::T_IF, $s);
$if->cond = $cond;
- $if->cases = array();
+ $if->cases = [];
return true;
}
$this->valueList($value) &&
$this->end()
) {
- $this->append(array('debug', $value), $s);
+ $this->append([Type::T_DEBUG, $value], $s);
return true;
}
$this->valueList($value) &&
$this->end()
) {
- $this->append(array('warn', $value), $s);
+ $this->append([Type::T_WARN, $value], $s);
return true;
}
$this->valueList($value) &&
$this->end()
) {
- $this->append(array('error', $value), $s);
+ $this->append([Type::T_ERROR, $value], $s);
return true;
}
$this->seek($s);
if ($this->literal('@content') && $this->end()) {
- $this->append(array('mixin_content'), $s);
+ $this->append([Type::T_MIXIN_CONTENT], $s);
return true;
}
$last = $this->last();
- if (isset($last) && $last[0] === 'if') {
+ if (isset($last) && $last[0] === Type::T_IF) {
list(, $if) = $last;
if ($this->literal('@else')) {
if ($this->literal('{')) {
- $else = $this->pushSpecialBlock('else', $s);
+ $else = $this->pushSpecialBlock(Type::T_ELSE, $s);
} elseif ($this->literal('if') && $this->valueList($cond) && $this->literal('{')) {
- $else = $this->pushSpecialBlock('elseif', $s);
+ $else = $this->pushSpecialBlock(Type::T_ELSEIF, $s);
$else->cond = $cond;
}
// only retain the first @charset directive encountered
if ($this->literal('@charset') &&
- $this->valueList($charset) && $this->end()
+ $this->valueList($charset) &&
+ $this->end()
) {
if (! isset($this->charset)) {
- $statement = array('charset', $charset);
+ $statement = [Type::T_CHARSET, $charset];
- $statement[self::SOURCE_POSITION] = $s;
+ list($line, $column) = $this->getSourcePosition($s);
- if (! $this->rootParser) {
- $statement[self::SOURCE_PARSER] = $this;
- }
+ $statement[self::SOURCE_LINE] = $line;
+ $statement[self::SOURCE_COLUMN] = $column;
+ $statement[self::SOURCE_INDEX] = $this->sourceIndex;
$this->charset = $statement;
}
$this->seek($s);
// doesn't match built in directive, do generic one
- if ($this->literal('@', false) && $this->keyword($dirName) &&
+ if ($this->literal('@', false) &&
+ $this->keyword($dirName) &&
($this->variable($dirValue) || $this->openString('{', $dirValue) || true) &&
$this->literal('{')
) {
- $directive = $this->pushSpecialBlock('directive', $s);
- $directive->name = $dirName;
+ if ($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;
$this->valueList($value) &&
$this->end()
) {
- $name = array('string', '', array($name));
- $this->append(array('assign', $name, $value), $s);
+ $name = [Type::T_STRING, '', [$name]];
+ $this->append([Type::T_ASSIGN, $name, $value], $s);
return true;
}
// variable assigns
if ($this->variable($name) &&
$this->literal(':') &&
- $this->valueList($value) && $this->end()
+ $this->valueList($value) &&
+ $this->end()
) {
// check for '!flag'
- $assignmentFlag = $this->stripAssignmentFlag($value);
- $this->append(array('assign', $name, $value, $assignmentFlag), $s);
+ $assignmentFlags = $this->stripAssignmentFlags($value);
+ $this->append([Type::T_ASSIGN, $name, $value, $assignmentFlags], $s);
return true;
}
// opening css block
if ($this->selectors($selectors) && $this->literal('{')) {
- $b = $this->pushBlock($selectors, $s);
+ $this->pushBlock($selectors, $s);
return true;
}
$foundSomething = false;
if ($this->valueList($value)) {
- $this->append(array('assign', $name, $value), $s);
+ $this->append([Type::T_ASSIGN, $name, $value], $s);
$foundSomething = true;
}
if ($this->literal('{')) {
- $propBlock = $this->pushSpecialBlock('nestedprop', $s);
+ $propBlock = $this->pushSpecialBlock(Type::T_NESTED_PROPERTY, $s);
$propBlock->prefix = $name;
$foundSomething = true;
} elseif ($foundSomething) {
if ($this->literal('}')) {
$block = $this->popBlock();
- if (isset($block->type) && $block->type === 'include') {
+ if (isset($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 : 'block';
- $this->append(array($type, $block), $s);
+ $type = isset($block->type) ? $block->type : Type::T_BLOCK;
+ $this->append([$type, $block], $s);
}
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 $pos
*
- * @return \stdClass
+ * @return \Leafo\ScssPhp\Block
*/
protected function pushBlock($selectors, $pos = 0)
{
- $b = new \stdClass;
- $b->parent = $this->env; // not sure if we need this yet
+ list($line, $column) = $this->getSourcePosition($pos);
- $b->sourcePosition = $pos;
- $b->sourceParser = $this;
- $b->selectors = $selectors;
- $b->comments = array();
+ $b = new Block;
+ $b->sourceLine = $line;
+ $b->sourceColumn = $column;
+ $b->sourceIndex = $this->sourceIndex;
+ $b->selectors = $selectors;
+ $b->comments = [];
+ $b->parent = $this->env;
if (! $this->env) {
- $b->children = array();
+ $b->children = [];
} elseif (empty($this->env->children)) {
$this->env->children = $this->env->comments;
- $b->children = array();
- $this->env->comments = array();
+ $b->children = [];
+ $this->env->comments = [];
} else {
$b->children = $this->env->comments;
- $this->env->comments = array();
+ $this->env->comments = [];
}
$this->env = $b;
* @param string $type
* @param integer $pos
*
- * @return \stdClass
+ * @return \Leafo\ScssPhp\Block
*/
protected function pushSpecialBlock($type, $pos)
{
/**
* Pop scope and return last block
*
- * @return \stdClass
+ * @return \Leafo\ScssPhp\Block
*
* @throws \Exception
*/
}
/**
- * Append comment to current block
+ * Peek input stream
*
- * @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 string $regex
+ * @param array $out
+ * @param integer $from
*
- * @param array $statement
- * @param integer $pos
+ * @return integer
*/
- protected function append($statement, $pos = null)
+ protected function peek($regex, &$out, $from = null)
{
- if ($pos !== null) {
- $statement[self::SOURCE_POSITION] = $pos;
-
- if (! $this->rootParser) {
- $statement[self::SOURCE_PARSER] = $this;
- }
+ if (! isset($from)) {
+ $from = $this->count;
}
- $this->env->children[] = $statement;
-
- $comments = $this->env->comments;
+ $r = '/' . $regex . '/' . $this->patternModifiers;
+ $result = preg_match($r, $this->buffer, $out, null, $from);
- if (count($comments)) {
- $this->env->children = array_merge($this->env->children, $comments);
- $this->env->comments = array();
- }
+ return $result;
}
/**
- * Returns last child was appended
+ * Seek to position in input stream (or return current position in input stream)
*
- * @return array|null
+ * @param integer $where
+ *
+ * @return integer
*/
- protected function last()
+ protected function seek($where = null)
{
- $i = count($this->env->children) - 1;
-
- if (isset($this->env->children[$i])) {
- return $this->env->children[$i];
+ if ($where === null) {
+ return $this->count;
}
- }
- /**
- * Parse media query list
- *
- * @param array $out
- *
- * @return boolean
- */
- protected function mediaQueryList(&$out)
- {
- return $this->genericList($out, 'mediaQuery', ',', false);
+ $this->count = $where;
+
+ return true;
}
/**
- * Parse media query
+ * Match string looking for either ending delim, escape, or string interpolation
*
- * @param array $out
+ * {@internal This is a workaround for preg_match's 250K string match limit. }}
*
- * @return boolean
+ * @param array $m Matches (passed by reference)
+ * @param string $delim Delimeter
+ *
+ * @return boolean True if match; false otherwise
*/
- protected function mediaQuery(&$out)
+ protected function matchString(&$m, $delim)
{
- $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');
- }
+ $token = null;
- if (isset($not)) {
- $prop[] = array('keyword', 'not');
- }
+ $end = strlen($this->buffer);
- $media = array('list', '', array());
+ // look for either ending delim, escape, or string interpolation
+ foreach (['#{', '\\', $delim] as $lookahead) {
+ $pos = strpos($this->buffer, $lookahead, $this->count);
- foreach ((array)$mediaType as $type) {
- if (is_array($type)) {
- $media[2][] = $type;
- } else {
- $media[2][] = array('keyword', $type);
- }
+ if ($pos !== false && $pos < $end) {
+ $end = $pos;
+ $token = $lookahead;
}
-
- $prop[] = $media;
- $parts[] = $prop;
}
- if (empty($parts) || $this->literal('and')) {
- $this->genericList($expressions, 'mediaExpression', 'and', false);
-
- if (is_array($expressions)) {
- $parts = array_merge($parts, $expressions[2]);
- }
+ if (! isset($token)) {
+ return false;
}
- $out = $parts;
+ $match = substr($this->buffer, $this->count, $end - $this->count);
+ $m = [
+ $match . $token,
+ $match,
+ $token
+ ];
+ $this->count = $end + strlen($token);
return true;
}
/**
- * Parse media expression
+ * Try to match something on head of buffer
*
- * @param array $out
+ * @param string $regex
+ * @param array $out
+ * @param boolean $eatWhitespace
*
* @return boolean
*/
- protected function mediaExpression(&$out)
+ protected function match($regex, &$out, $eatWhitespace = null)
{
- $s = $this->seek();
- $value = null;
+ if (! isset($eatWhitespace)) {
+ $eatWhitespace = $this->eatWhiteDefault;
+ }
- if ($this->literal('(') &&
- $this->expression($feature) &&
- ($this->literal(':') && $this->expression($value) || true) &&
- $this->literal(')')
- ) {
- $out = array('mediaExp', $feature);
+ $r = '/' . $regex . '/' . $this->patternModifiers;
- if ($value) {
- $out[] = $value;
+ if (preg_match($r, $this->buffer, $out, null, $this->count)) {
+ $this->count += strlen($out[0]);
+
+ if ($eatWhitespace) {
+ $this->whitespace();
}
return true;
}
- $this->seek($s);
+ 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()
+ {
+ $gotWhite = false;
+
+ while (preg_match(self::$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[self::SOURCE_LINE] = $line;
+ $statement[self::SOURCE_COLUMN] = $column;
+ $statement[self::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;
}
}
if ($this->genericList($value, 'expression')) {
- $out = array($keyword, $value, false);
+ $out = [$keyword, $value, false];
$s = $this->seek();
if ($this->literal('...')) {
}
/**
- * Parse list
+ * Parse comma separated value list
*
* @param string $out
*
}
/**
- * Parse space list
+ * Parse space separated value list
*
* @param array $out
*
protected function genericList(&$out, $parseItem, $delim = '', $flatten = true)
{
$s = $this->seek();
- $items = array();
+ $items = [];
while ($this->$parseItem($value)) {
$items[] = $value;
if ($flatten && count($items) === 1) {
$out = $items[0];
} else {
- $out = array('list', $delim, $items);
+ $out = [Type::T_LIST, $delim, $items];
}
return true;
if ($this->literal('(')) {
if ($this->literal(')')) {
- $out = array('list', '', array());
+ $out = [Type::T_LIST, '', []];
return true;
}
- if ($this->valueList($out) && $this->literal(')') && $out[0] === 'list') {
+ if ($this->valueList($out) && $this->literal(')') && $out[0] === Type::T_LIST) {
return true;
}
*/
protected function expHelper($lhs, $minP)
{
- $opstr = self::$operatorStr;
+ $operators = self::$operatorPattern;
$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]] >= $minP) {
+ while ($this->match($operators, $m, false) && self::$precedence[$m[1]] >= $minP) {
$whiteAfter = isset($this->buffer[$this->count]) &&
ctype_space($this->buffer[$this->count]);
$varAfter = isset($this->buffer[$this->count]) &&
}
// peek and see if rhs belongs to next operator
- if ($this->peek($opstr, $next) && self::$precedence[$next[1]] > self::$precedence[$op]) {
+ if ($this->peek($operators, $next) && self::$precedence[$next[1]] > self::$precedence[$op]) {
$rhs = $this->expHelper($rhs, self::$precedence[$next[1]]);
}
- $lhs = array('exp', $op, $lhs, $rhs, $this->inParens, $whiteBefore, $whiteAfter);
+ $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]);
$s = $this->seek();
if ($this->literal('not', false) && $this->whitespace() && $this->value($inner)) {
- $out = array('unary', 'not', $inner, $this->inParens);
+ $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 = array('unary', '+', $inner, $this->inParens);
+ $out = [Type::T_UNARY, '+', $inner, $this->inParens];
return true;
}
$this->unit($inner) ||
$this->parenValue($inner))
) {
- $out = array('unary', '-', $inner, $this->inParens);
+ $out = [Type::T_UNARY, '-', $inner, $this->inParens];
return true;
}
if ($this->keyword($keyword)) {
if ($keyword === 'null') {
- $out = array('null');
+ $out = [Type::T_NULL];
} else {
- $out = array('keyword', $keyword);
+ $out = [Type::T_KEYWORD, $keyword];
}
return true;
if ($this->literal('(')) {
if ($this->literal(')')) {
- $out = array('list', '', array());
+ $out = [Type::T_LIST, '', []];
return true;
}
$this->openString(')', $args, '(');
if ($this->literal(')')) {
- $out = array('string', '', array(
+ $out = [Type::T_STRING, '', [
'progid:', $fn, '(', $args, ')'
- ));
+ ]];
return true;
}
$this->literal('(')
) {
if ($name === 'alpha' && $this->argumentList($args)) {
- $func = array('function', $name, array('string', '', $args));
+ $func = [Type::T_FUNCTION, $name, [Type::T_STRING, '', $args]];
return true;
}
$ss = $this->seek();
if ($this->argValues($args) && $this->literal(')')) {
- $func = array('fncall', $name, $args);
+ $func = [Type::T_FUNCTION_CALL, $name, $args];
return true;
}
$this->seek($ss);
}
- if (($this->openString(')', $str, '(') || true ) &&
+ if (($this->openString(')', $str, '(') || true) &&
$this->literal(')')
) {
- $args = array();
+ $args = [];
if (! empty($str)) {
- $args[] = array(null, array('string', '', array($str)));
+ $args[] = [null, [Type::T_STRING, '', [$str]]];
}
- $func = array('fncall', $name, $args);
+ $func = [Type::T_FUNCTION_CALL, $name, $args];
return true;
}
$s = $this->seek();
$this->literal('(');
- $args = array();
+ $args = [];
while ($this->keyword($var)) {
- $ss = $this->seek();
-
if ($this->literal('=') && $this->expression($exp)) {
- $args[] = array('string', '', array($var . '='));
+ $args[] = [Type::T_STRING, '', [$var . '=']];
$arg = $exp;
} else {
break;
break;
}
- $args[] = array('string', '', array(', '));
+ $args[] = [Type::T_STRING, '', [', ']];
}
if (! $this->literal(')') || ! count($args)) {
$s = $this->seek();
$this->literal('(');
- $args = array();
+ $args = [];
while ($this->variable($var)) {
- $arg = array($var[1], null, false);
+ $arg = [$var[1], null, false];
$ss = $this->seek();
{
$s = $this->seek();
- $this->literal('(');
+ if (! $this->literal('(')) {
+ return false;
+ }
- $keys = array();
- $values = array();
+ $keys = [];
+ $values = [];
- while ($this->genericList($key, 'expression') && $this->literal(':')
- && $this->genericList($value, 'expression')
+ while ($this->genericList($key, 'expression') && $this->literal(':') &&
+ $this->genericList($value, 'expression')
) {
$keys[] = $key;
$values[] = $value;
return false;
}
- $out = array('map', $keys, $values);
+ $out = [Type::T_MAP, $keys, $values];
return true;
}
*/
protected function color(&$out)
{
- $color = array('color');
+ $color = [Type::T_COLOR];
if ($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;
- }
+ $num = hexdec($m[3]);
- $num = hexdec($num);
-
- foreach (array(3, 2, 1) as $i) {
- $t = $num % $width;
- $num /= $width;
+ foreach ([3, 2, 1] as $i) {
+ $t = $num & 0xf;
+ $color[$i] = $t << 4 | $t;
+ $num >>= 4;
+ }
+ } else {
+ $num = hexdec($m[2]);
- $color[$i] = $t * (256/$width) + $t * floor(16/$width);
+ foreach ([3, 2, 1] as $i) {
+ $color[$i] = $num & 0xff;
+ $num >>= 8;
+ }
}
$out = $color;
protected function unit(&$unit)
{
if ($this->match('([0-9]*(\.)?[0-9]+)([%a-zA-Z]+)?', $m)) {
- $unit = array('number', $m[1], empty($m[3]) ? '' : $m[3]);
+ $unit = new Node\Number($m[1], empty($m[3]) ? '' : $m[3]);
return true;
}
if ($this->literal('"', false)) {
$delim = '"';
- } elseif ($this->literal('\'', false)) {
- $delim = '\'';
+ } elseif ($this->literal("'", false)) {
+ $delim = "'";
} else {
return false;
}
- $content = array();
+ $content = [];
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
+ $hasInterpolation = false;
while ($this->matchString($m, $delim)) {
- $content[] = $m[1];
+ if ($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] === '\\') {
- $content[] = $m[2];
-
- if ($this->literal($delim, false)) {
- $content[] = $delim;
+ if ($this->literal('"', false)) {
+ $content[] = $m[2] . '"';
+ } elseif ($this->literal("'", false)) {
+ $content[] = $m[2] . "'";
+ } else {
+ $content[] = $m[2];
}
} else {
$this->count -= strlen($delim);
$this->eatWhiteDefault = $oldWhite;
if ($this->literal($delim)) {
- $out = array('string', $delim, $content);
+ if ($hasInterpolation) {
+ $delim = '"';
+
+ foreach ($content as &$string) {
+ if ($string === "\\'") {
+ $string = "'";
+ } elseif ($string === '\\"') {
+ $string = '"';
+ }
+ }
+ }
+
+ $out = [Type::T_STRING, $delim, $content];
return true;
}
*/
protected function mixedKeyword(&$out)
{
- $s = $this->seek();
-
- $parts = array();
+ $parts = [];
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
- while (true) {
+ for (;;) {
if ($this->keyword($key)) {
$parts[] = $key;
continue;
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
- $stop = array('\'', '"', '#{', $end);
- $stop = array_map(array($this, 'pregQuote'), $stop);
- $stop[] = self::$commentMulti;
-
- $patt = '(.*?)(' . implode('|', $stop) . ')';
+ $patt = '(.*?)([\'"]|#\{|' . $this->pregQuote($end) . '|' . self::$commentPattern . ')';
$nestingLevel = 0;
- $content = array();
+ $content = [];
while ($this->match($patt, $m, false)) {
if (isset($m[1]) && $m[1] !== '') {
break;
}
- if (($tok === '\'' || $tok === '"') && $this->string($str)) {
+ if (($tok === "'" || $tok === '"') && $this->string($str)) {
$content[] = $str;
continue;
}
$content[count($content) - 1] = rtrim(end($content));
}
- $out = array('string', '', $content);
+ $out = [Type::T_STRING, '', $content];
return 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]) ? ' ': '';
$left = $right = false;
}
- $out = array('interpolate', $value, $left, $right);
+ $out = [Type::T_INTERPOLATE, $value, $left, $right];
$this->eatWhiteDefault = $oldWhite;
if ($this->eatWhiteDefault) {
$this->whitespace();
}
+
return true;
}
$this->seek($s);
$this->eatWhiteDefault = $oldWhite;
+
return false;
}
*/
protected function propertyName(&$out)
{
- $s = $this->seek();
- $parts = array();
+ $parts = [];
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
- while (true) {
+ for (;;) {
if ($this->interpolation($inter)) {
$parts[] = $inter;
- } elseif ($this->keyword($text)) {
+ continue;
+ }
+
+ if ($this->keyword($text)) {
$parts[] = $text;
- } elseif (count($parts) === 0 && $this->match('[:.#]', $m, false)) {
+ continue;
+ }
+
+ if (count($parts) === 0 && $this->match('[:.#]', $m, false)) {
// css hacks
$parts[] = $m[0];
- } else {
- break;
+ continue;
}
+
+ break;
}
$this->eatWhiteDefault = $oldWhite;
$this->whitespace(); // get any extra whitespace
- $out = array('string', '', $parts);
+ $out = [Type::T_STRING, '', $parts];
return true;
}
protected function selectors(&$out)
{
$s = $this->seek();
- $selectors = array();
+ $selectors = [];
while ($this->selector($sel)) {
$selectors[] = $sel;
*/
protected function selector(&$out)
{
- $selector = array();
+ $selector = [];
- while (true) {
+ for (;;) {
if ($this->match('[>+~]+', $m)) {
- $selector[] = array($m[0]);
- } elseif ($this->selectorSingle($part)) {
+ $selector[] = [$m[0]];
+ continue;
+ }
+
+ if ($this->selectorSingle($part)) {
$selector[] = $part;
$this->match('\s+', $m);
- } elseif ($this->match('\/[^\/]+\/', $m)) {
- $selector[] = array($m[0]);
- } else {
- break;
+ continue;
}
+ if ($this->match('\/[^\/]+\/', $m)) {
+ $selector[] = [$m[0]];
+ continue;
+ }
+
+ break;
}
if (count($selector) === 0) {
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
- $parts = array();
+ $parts = [];
if ($this->literal('*', false)) {
$parts[] = '*';
}
- while (true) {
+ for (;;) {
// see if we can stop early
if ($this->match('\s*[{,]', $m)) {
$this->count--;
$ss = $this->seek();
if ($this->literal('(') &&
- ($this->openString(')', $str, '(') || true ) &&
+ ($this->openString(')', $str, '(') || true) &&
$this->literal(')')
) {
$parts[] = '(';
$this->seek($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[] = $m[0];
- continue;
- }
+ if ($this->literal('[') &&
+ ($this->openString(']', $str, '[') || true) &&
+ $this->literal(']')
+ ) {
+ $parts[] = '[';
- break;
+ if (! empty($str)) {
+ $parts[] = $str;
}
- if ($this->literal(']', false)) {
- $attrParts[] = ']';
-
- foreach ($attrParts as $part) {
- $parts[] = $part;
- }
+ $parts[] = ']';
- continue;
- }
-
- $this->seek($s);
- // TODO: should just break here?
+ continue;
}
+ $this->seek($s);
+
break;
}
$s = $this->seek();
if ($this->literal('$', false) && $this->keyword($name)) {
- $out = array('var', $name);
+ $out = [Type::T_VARIABLE, $name];
return true;
}
protected function keyword(&$word, $eatWhitespace = null)
{
if ($this->match(
- '(([\w_\-\*!"\']|[\\\\].)([\w\-_"\']|[\\\\].)*)',
+ $this->utf8
+ ? '(([\pL\w_\-\*!"\']|[\\\\].)([\pL\w\-_"\']|[\\\\].)*)'
+ : '(([\w_\-\*!"\']|[\\\\].)([\w\-_"\']|[\\\\].)*)',
$m,
$eatWhitespace
)) {
*/
protected function placeholder(&$placeholder)
{
- if ($this->match('([\w\-_]+|#[{][$][\w\-_]+[}])', $m)) {
+ if ($this->match(
+ $this->utf8
+ ? '([\pL\w\-_]+|#[{][$][\pL\w\-_]+[}])'
+ : '([\w\-_]+|#[{][$][\w\-_]+[}])',
+ $m
+ )) {
$placeholder = $m[1];
return true;
protected function url(&$out)
{
if ($this->match('(url\(\s*(["\']?)([^)]+)\2\s*\))', $m)) {
- $out = array('string', '', array('url(' . $m[2] . $m[3] . $m[2] . ')'));
+ $out = [Type::T_STRING, '', ['url(' . $m[2] . $m[3] . $m[2] . ')']];
return true;
}
}
/**
- * @deprecated
+ * Strip assignment flag from the list
*
- * {@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
- * }}
+ * @param array $value
+ *
+ * @return array
*/
- protected function to($what, &$out, $until = false, $allowNewline = false)
+ protected function stripAssignmentFlags(&$value)
{
- if (is_string($allowNewline)) {
- $validChars = $allowNewline;
- } else {
- $validChars = $allowNewline ? '.' : "[^\n]";
- }
+ $flags = [];
- if (! $this->match('(' . $validChars . '*?)' . $this->pregQuote($what), $m, ! $until)) {
- return false;
- }
+ for ($token = &$value; $token[0] === Type::T_LIST && ($s = count($token[2])); $token = &$lastNode) {
+ $lastNode = &$token[2][$s - 1];
- if ($until) {
- $this->count -= strlen($what); // give back $what
- }
+ while ($lastNode[0] === Type::T_KEYWORD && in_array($lastNode[1], ['!default', '!global'])) {
+ array_pop($token[2]);
- $out = $m[1];
+ $node = end($token[2]);
- return true;
+ $token = $this->flattenList($token);
+
+ $flags[] = $lastNode[1];
+
+ $lastNode = $node;
+ }
+ }
+
+ return $flags;
}
/**
- * Throw parser error
+ * Strip optional flag from selector list
*
- * @param string $msg
- * @param integer $count
+ * @param array $selectors
*
- * @throws \Exception
+ * @return string
*/
- public function throwParseError($msg = 'parse error', $count = null)
+ protected function stripOptionalFlag(&$selectors)
{
- $count = ! isset($count) ? $this->count : $count;
+ $optional = false;
- $line = $this->getLineNo($count);
+ $selector = end($selectors);
+ $part = end($selector);
- if (! empty($this->sourceName)) {
- $loc = "$this->sourceName on line $line";
- } else {
- $loc = "line: $line";
- }
+ if ($part === ['!optional']) {
+ array_pop($selectors[count($selectors) - 1]);
- if ($this->peek("(.*?)(\n|$)", $m, $count)) {
- throw new \Exception("$msg: failed at `$m[1]` $loc");
+ $optional = true;
}
- throw new \Exception("$msg: $loc");
- }
-
- /**
- * Get source file name
- *
- * @return string
- */
- public function getSourceName()
- {
- return $this->sourceName;
+ return $optional;
}
/**
- * Get source line number (given character position in the buffer)
+ * Turn list of length 1 into value type
*
- * @param integer $pos
+ * @param array $value
*
- * @return integer
+ * @return array
*/
- public function getLineNo($pos)
+ protected function flattenList($value)
{
- return 1 + substr_count(substr($this->buffer, 0, $pos), "\n");
+ if ($value[0] === Type::T_LIST && count($value[2]) === 1) {
+ return $this->flattenList($value[2][0]);
+ }
+
+ return $value;
}
/**
- * 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
+ * @deprecated
*
- * @return boolean True if match; false otherwise
+ * {@internal
+ * advance counter to next occurrence of $what
+ * $until - don't include $what in advance
+ * $allowNewline, if string, will be used as valid char set
+ * }}
*/
- protected function matchString(&$m, $delim)
+ protected function to($what, &$out, $until = false, $allowNewline = false)
{
- $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 = $lookahead;
- }
+ if (is_string($allowNewline)) {
+ $validChars = $allowNewline;
+ } else {
+ $validChars = $allowNewline ? '.' : "[^\n]";
}
- if (! isset($token)) {
+ if (! $this->match('(' . $validChars . '*?)' . $this->pregQuote($what), $m, ! $until)) {
return false;
}
- $match = substr($this->buffer, $this->count, $end - $this->count);
- $m = array(
- $match . $token,
- $match,
- $token
- );
- $this->count = $end + strlen($token);
+ if ($until) {
+ $this->count -= strlen($what); // give back $what
+ }
+
+ $out = $m[1];
return true;
}
/**
- * Try to match something on head of buffer
- *
- * @param string $regex
- * @param array $out
- * @param boolean $eatWhitespace
- *
- * @return boolean
+ * @deprecated
*/
- protected function match($regex, &$out, $eatWhitespace = null)
+ protected function show()
{
- if (! isset($eatWhitespace)) {
- $eatWhitespace = $this->eatWhiteDefault;
- }
-
- $r = '/' . $regex . '/Ais';
-
- if (preg_match($r, $this->buffer, $out, null, $this->count)) {
- $this->count += strlen($out[0]);
-
- if ($eatWhitespace) {
- $this->whitespace();
- }
-
- return true;
+ if ($this->peek("(.*?)(\n|$)", $m, $this->count)) {
+ return $m[1];
}
- return false;
+ return '';
}
/**
- * Match some whitespace
+ * Quote regular expression
*
- * @return boolean
+ * @param string $what
+ *
+ * @return string
*/
- protected function whitespace()
+ private function pregQuote($what)
{
- $gotWhite = false;
-
- while (preg_match(self::$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 $gotWhite;
+ return preg_quote($what, '/');
}
/**
- * Peek input stream
- *
- * @param string $regex
- * @param array $out
- * @param integer $from
+ * Extract line numbers from buffer
*
- * @return integer
+ * @param string $buffer
*/
- protected function peek($regex, &$out, $from = null)
+ private function extractLineNumbers($buffer)
{
- if (! isset($from)) {
- $from = $this->count;
+ $this->sourcePositions = [0 => 0];
+ $prev = 0;
+
+ while (($pos = strpos($buffer, "\n", $prev)) !== false) {
+ $this->sourcePositions[] = $pos;
+ $prev = $pos + 1;
}
- $r = '/' . $regex . '/Ais';
- $result = preg_match($r, $this->buffer, $out, null, $from);
+ $this->sourcePositions[] = strlen($buffer);
- return $result;
+ if (substr($buffer, -1) !== "\n") {
+ $this->sourcePositions[] = strlen($buffer) + 1;
+ }
}
/**
- * Seek to position in input stream (or return current position in input stream)
+ * Get source line number and column (given character position in the buffer)
*
- * @param integer $where
+ * @param integer $pos
*
* @return integer
*/
- protected function seek($where = null)
+ private function getSourcePosition($pos)
{
- if ($where === null) {
- return $this->count;
- }
+ $low = 0;
+ $high = count($this->sourcePositions);
- $this->count = $where;
+ while ($low < $high) {
+ $mid = (int) (($high + $low) / 2);
- return true;
- }
+ if ($pos < $this->sourcePositions[$mid]) {
+ $high = $mid - 1;
+ continue;
+ }
- /**
- * Quote regular expression
- *
- * @param string $what
- *
- * @return string
- */
- public static function pregQuote($what)
- {
- return preg_quote($what, '/');
+ if ($pos >= $this->sourcePositions[$mid + 1]) {
+ $low = $mid + 1;
+ continue;
+ }
+
+ return [$mid + 1, $pos - $this->sourcePositions[$mid]];
+ }
+
+ return [$low + 1, $pos - $this->sourcePositions[$low]];
}
/**
- * @deprecated
+ * Save internal encoding
*/
- protected function show()
+ private function saveEncoding()
{
- if ($this->peek("(.*?)(\n|$)", $m, $this->count)) {
- return $m[1];
- }
+ if (ini_get('mbstring.func_overload') & 2) {
+ $this->encoding = mb_internal_encoding();
- return '';
+ mb_internal_encoding('iso-8859-1');
+ }
}
/**
- * Turn list of length 1 into value type
- *
- * @param array $value
- *
- * @return array
+ * Restore internal encoding
*/
- protected function flattenList($value)
+ private function restoreEncoding()
{
- if ($value[0] === 'list' && count($value[2]) === 1) {
- return $this->flattenList($value[2][0]);
+ if ($this->encoding) {
+ mb_internal_encoding($this->encoding);
}
-
- return $value;
}
}
projects / GitHub / WoltLab / WCF.git / commitdiff