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Added CSS/UriRewriter.php : untested!

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Minify/ImportProcessor.php units need fixing
This commit is contained in:
Steve Clay 2008-08-30 07:25:37 +00:00
parent 560bcfd440
commit eebe132aed
3 changed files with 103 additions and 4 deletions
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102
min/lib/Minify/CSS/UriRewriter.php Normal file
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@ -0,0 +1,102 @@
<?php
/**
* Class Minify_CSS_UriRewriter
* @package Minify
*/
/**
* Rewrite file-relative URIs as root-relative in CSS files
*
* @todo: unit tests, use in Minify_CSS and Minify_ImportProcessor
*
* @package Minify
* @author Stephen Clay <steve@mrclay.org>
*/
class Minify_CSS_UriRewriter {
/**
* Rewrite file relative URIs as root relative in CSS files
*
* @param string $css
*
* @param string $currentDir The directory of the current CSS file.
*
* @param string $docRoot The document root of the web site in which
* the CSS file resides (default = $_SERVER['DOCUMENT_ROOT']).
*
* @return string
*/
public static function rewrite($css, $currentDir, $docRoot = null)
{
self::$_docRoot = $docRoot
? $docRoot
: $_SERVER['DOCUMENT_ROOT'];
self::$_docRoot = realpath(self::$_docRoot);
self::$_currentDir = realpath($currentDir);
// remove ws around urls
$css = preg_replace('/
url\\( # url(
\\s*
([^\\)]+?) # 1 = URI (really just a bunch of non right parenthesis)
\\s*
\\) # )
/x', 'url($1)', $css);
// rewrite
$css = preg_replace_callback('/@import\\s+([\'"])(.*?)[\'"]/'
,array('Minify_CSS_UriRewriter', '_uriCB'), $css);
$css = preg_replace_callback('/url\\(\\s*([^\\)\\s]+)\\s*\\)/'
,array('Minify_CSS_UriRewriter', '_uriCB'), $css);
return $css;
}
/**
* @var string directory of this stylesheet
*/
protected static $_currentDir = '';
/**
* @var string DOC_ROOT
*/
protected static $_docRoot = '';
protected static function _uriCB($m)
{
$isImport = ($m[0][0] === '@');
if ($isImport) {
$quoteChar = $m[1];
$uri = $m[2];
} else {
// is url()
// $m[1] is either quoted or not
$quoteChar = ($m[1][0] === "'" || $m[1][0] === '"')
? $m[1][0]
: '';
$uri = ($quoteChar === '')
? $m[1]
: substr($m[1], 1, strlen($m[1]) - 2);
}
if ('/' !== $uri[0]) {
if (strpos($uri, '//') > 0) {
// probably starts with protocol, do not alter
} else {
// it's a file relative URI!
// prepend path with current dir separator (OS-independent)
$path = strtr(self::$_currentDir, '/', DIRECTORY_SEPARATOR)
. DIRECTORY_SEPARATOR . strtr($uri, '/', DIRECTORY_SEPARATOR);
// strip doc root
$path = substr($path, strlen(self::$_docRoot));
// fix to root-relative URI
$uri = strtr($path, DIRECTORY_SEPARATOR, '/');
$uri = str_replace('/./', '/', $uri);
}
}
if ($isImport) {
return "@import {$quoteChar}{$uri}{$quoteChar}";
} else {
return "url({$quoteChar}{$uri}{$quoteChar})";
}
}
}

1
min_extras/unit_tests/_test_files/importProcessor/1/bad.css
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@ -1 +0,0 @@
/* I should not be imported */

4
min_extras/unit_tests/test_Minify_ImportProcessor.php
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@ -1,7 +1,5 @@
<?php
return; // refactoring
require_once '_inc.php';
require_once 'Minify/ImportProcessor.php';
@ -10,7 +8,7 @@ function test_Minify_ImportProcessor()
{
global $thisDir;
$linDir = $thisDir . '/_test_files/cssLinearizer';
$linDir = $thisDir . '/_test_files/importProcessor';
$testFilesUri = substr(
realpath($thisDir . '/_test_files')