From 5d3505bfeca6d76cf5b5bee96cf47a017efda43c Mon Sep 17 00:00:00 2001
From: Marcel Werk <burntime@woltlab.com>
Date: Wed, 17 Apr 2013 02:40:14 +0200
Subject: [PATCH] Added simple wordwrap function

---
 .../TruncateModifierTemplatePlugin.class.php  |  2 +-
 .../WordwrapModifierTemplatePlugin.class.php  | 35 +++++++++++++++++++
 .../files/lib/util/StringUtil.class.php       | 32 +++++++++++++++++
 3 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 wcfsetup/install/files/lib/system/template/plugin/WordwrapModifierTemplatePlugin.class.php

diff --git a/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php
index 8206dad6c9..a13109fad3 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php
@@ -23,7 +23,7 @@ class TruncateModifierTemplatePlugin implements IModifierTemplatePlugin {
 	public function execute($tagArgs, TemplateEngine $tplObj) {
 		// default values
 		$length = 80;
-		$etc = '…';
+		$etc = StringUtil::HELLIP;
 		$breakWords = false;
 		
 		// get values
diff --git a/wcfsetup/install/files/lib/system/template/plugin/WordwrapModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/WordwrapModifierTemplatePlugin.class.php
new file mode 100644
index 0000000000..9c446937c4
--- /dev/null
+++ b/wcfsetup/install/files/lib/system/template/plugin/WordwrapModifierTemplatePlugin.class.php
@@ -0,0 +1,35 @@
+<?php
+namespace wcf\system\template\plugin;
+use wcf\system\template\TemplateEngine;
+use wcf\util\StringUtil;
+
+/**
+ * Template modifier plugin which wordwraps a string.
+ * 
+ * Usage:
+ * 	{$foo|wordwrap:50:' '}
+ * 
+ * @author	Marcel Werk
+ * @copyright	2001-2013 WoltLab GmbH
+ * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @package	com.woltlab.wcf
+ * @subpackage	system.template.plugin
+ * @category	Community Framework
+ */
+class WordwrapModifierTemplatePlugin implements IModifierTemplatePlugin {
+	/**
+	 * @see	wcf\system\template\IModifierTemplatePlugin::execute()
+	 */
+	public function execute($tagArgs, TemplateEngine $tplObj) {
+		// default values
+		$width = 50;
+		$break = ' ';
+		
+		// get values
+		$string = $tagArgs[0];
+		if (isset($tagArgs[1])) $width = intval($tagArgs[1]);
+		if (isset($tagArgs[2])) $break = $tagArgs[2];
+		
+		return StringUtil::wordwrap($string, $width, $break);
+	}
+}
diff --git a/wcfsetup/install/files/lib/util/StringUtil.class.php b/wcfsetup/install/files/lib/util/StringUtil.class.php
index 456bc41e24..4750cda945 100644
--- a/wcfsetup/install/files/lib/util/StringUtil.class.php
+++ b/wcfsetup/install/files/lib/util/StringUtil.class.php
@@ -695,5 +695,37 @@ final class StringUtil {
 		return mb_ereg_replace('.{'.$length.'}', "\\0".$break, $string);
 	}
 	
+	/**
+	 * Simple multi-byte safe wordwrap() function.
+	 * 
+	 * @param 	string		$string
+	 * @param	integer		$width
+	 * @param	string		$break
+	 * @return	string
+	 */
+	public static function wordwrap($string, $width = 50, $break = ' ') {
+		$result = '';
+		$substrings = explode($break, $string);
+		
+		foreach ($substrings as $substring) {
+			$length = self::length($substring);
+			if ($length > $width) {
+				$j = ceil($length / $width);
+				
+				for ($i = 0; $i < $j; $i++) {
+					if (!empty($result)) $result .= $break;
+					if ($width * ($i + 1) > $length) $result .= self::substring($substring, $width * $i);
+					else $result .= self::substring($substring, $width * $i, $width);
+				}
+			}
+			else {
+				if (!empty($result)) $result .= $break;
+				$result .= $substring;
+			}
+		}
+		
+		return $result;
+	}
+	
 	private function __construct() { }
 }
-- 
2.20.1