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+<?php
+/**
+ * Class Minify_CSS
+ * @package Minify
+ */
+
+/**
+ * Minify CSS
+ *
+ * This class uses Minify_CSS_Compressor and Minify_CSS_UriRewriter to
+ * minify CSS and rewrite relative URIs.
+ *
+ * @package Minify
+ * @author Stephen Clay <steve@mrclay.org>
+ * @author http://code.google.com/u/1stvamp/ (Issue 64 patch)
+ */
+class Minify_CSS {
+
+ /**
+ * Minify a CSS string
+ *
+ * @param string $css
+ *
+ * @param array $options available options:
+ *
+ * 'preserveComments': (default true) multi-line comments that begin
+ * with "/*!" will be preserved with newlines before and after to
+ * enhance readability.
+ *
+ * 'removeCharsets': (default true) remove all @charset at-rules
+ *
+ * 'prependRelativePath': (default null) if given, this string will be
+ * prepended to all relative URIs in import/url declarations
+ *
+ * 'currentDir': (default null) if given, this is assumed to be the
+ * directory of the current CSS file. Using this, minify will rewrite
+ * all relative URIs in import/url declarations to correctly point to
+ * the desired files. For this to work, the files *must* exist and be
+ * visible by the PHP process.
+ *
+ * 'symlinks': (default = array()) If the CSS file is stored in
+ * a symlink-ed directory, provide an array of link paths to
+ * target paths, where the link paths are within the document root. Because
+ * paths need to be normalized for this to work, use "//" to substitute
+ * the doc root in the link paths (the array keys). E.g.:
+ * <code>
+ * array('//symlink' => '/real/target/path') // unix
+ * array('//static' => 'D:\\staticStorage') // Windows
+ * </code>
+ *
+ * 'docRoot': (default = $_SERVER['DOCUMENT_ROOT'])
+ * see Minify_CSS_UriRewriter::rewrite
+ *
+ * @return string
+ */
+ public static function minify($css, $options = array())
+ {
+ $options = array_merge(array(
+ 'removeCharsets' => true,
+ 'preserveComments' => true,
+ 'currentDir' => null,
+ 'docRoot' => $_SERVER['DOCUMENT_ROOT'],
+ 'prependRelativePath' => null,
+ 'symlinks' => array(),
+ ), $options);
+
+ if ($options['removeCharsets']) {
+ $css = preg_replace('/@charset[^;]+;\\s*/', '', $css);
+ }
+ require_once 'Minify/CSS/Compressor.php';
+ if (! $options['preserveComments']) {
+ $css = Minify_CSS_Compressor::process($css, $options);
+ } else {
+ require_once 'Minify/CommentPreserver.php';
+ $css = Minify_CommentPreserver::process(
+ $css
+ ,array('Minify_CSS_Compressor', 'process')
+ ,array($options)
+ );
+ }
+ if (! $options['currentDir'] && ! $options['prependRelativePath']) {
+ return $css;
+ }
+ require_once 'Minify/CSS/UriRewriter.php';
+ if ($options['currentDir']) {
+ return Minify_CSS_UriRewriter::rewrite(
+ $css
+ ,$options['currentDir']
+ ,$options['docRoot']
+ ,$options['symlinks']
+ );
+ } else {
+ return Minify_CSS_UriRewriter::prepend(
+ $css
+ ,$options['prependRelativePath']
+ );
+ }
+ }
+}