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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(
- 'compress' => true,
- 'removeCharsets' => true,
- 'preserveComments' => true,
- 'currentDir' => null,
- 'docRoot' => $_SERVER['DOCUMENT_ROOT'],
- 'prependRelativePath' => null,
- 'symlinks' => array(),
- ), $options);
-
- if ($options['removeCharsets']) {
- $css = preg_replace('/@charset[^;]+;\\s*/', '', $css);
- }
- if ($options['compress']) {
- if (! $options['preserveComments']) {
- $css = Minify_CSS_Compressor::process($css, $options);
- } else {
- $css = Minify_CommentPreserver::process(
- $css
- ,array('Minify_CSS_Compressor', 'process')
- ,array($options)
- );
- }
- }
- if (! $options['currentDir'] && ! $options['prependRelativePath']) {
- return $css;
- }
- if ($options['currentDir']) {
- return Minify_CSS_UriRewriter::rewrite(
- $css
- ,$options['currentDir']
- ,$options['docRoot']
- ,$options['symlinks']
- );
- } else {
- return Minify_CSS_UriRewriter::prepend(
- $css
- ,$options['prependRelativePath']
- );
- }
- }
- }
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