Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.1176
diff -u -r1.1176 common.inc
--- includes/common.inc	9 Jun 2010 14:55:30 -0000	1.1176
+++ includes/common.inc	16 Jun 2010 11:27:59 -0000
@@ -3266,14 +3266,21 @@
 
   if ($optimize) {
     // Perform some safe CSS optimizations.
-    $contents = preg_replace('{
-      (?<=\\\\\*/)([^/\*]+/\*)([^\*/]+\*/)  # Add a backslash also at the end ie-mac hack comment, so the next pass will not touch it.
-                                            # The added backslash does not affect the effectiveness of the hack.
-      }x', '\1\\\\\2', $contents);
-    $contents = preg_replace('<
-      \s*([@{}:;,]|\)\s|\s\()\s* |          # Remove whitespace around separators, but keep space around parentheses.
-      /\*[^*\\\\]*\*+([^/*][^*]*\*+)*/ |    # Remove comments that are not CSS hacks.
-      >x', '\1', $contents);
+    // Regexp to match comment blocks.
+    $comment     = '/\*[^*]*\*+(?:[^/*][^*]*\*+)*/';
+    // Regexp to match double quoted strings.
+    $double_quot = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"';
+    // Regexp to match single quoted strings.
+    $single_quot = "'[^'\\\\]*(?:\\\\.[^'\\\\]*)*'";
+    $contents = preg_replace_callback(
+      "<$double_quot|$single_quot|$comment>Sus",  // Match all comment blocks along
+      "_process_stylesheet_comment",              // with double/single quoted strings
+      $contents);                                 // and feed them to _process_comment().
+    $contents = preg_replace(
+      '<\s*([@{}:;,]|\)\s|\s\()\s*>S',            // Remove whitespace around separators,
+      '\1', $contents);                           // but keep space around parentheses.
+    // End the file with a new line.
+    $contents .= "\n";
   }
 
   // Replaces @import commands with the actual stylesheet content.
@@ -3283,6 +3290,46 @@
 }
 
 /**
+ * Process comment blocks.
+ *
+ * This is the callback function for the preg_replace_callback()
+ * used in drupal_load_stylesheet_content(). Support for comment
+ * hacks is implemented here.
+ */
+function _process_stylesheet_comment($matches) {
+  // Use the advanced drupal_static() pattern, since this is called very often.
+  static $drupal_static_fast;
+  if (!isset($drupal_static_fast)) {
+    $drupal_static_fast['keep_nextone'] = &drupal_static(__FUNCTION__, FALSE);
+  }
+  $keep_nextone = &$drupal_static_fast['keep_nextone'];
+
+  // Quoted string, keep it.
+  if ($matches[0][0] == "'" || $matches[0][0] == '"') {
+    return $matches[0];
+  }
+  // End of IE-Mac hack, keep it.
+  if ($keep_nextone) {
+    $keep_nextone = FALSE;
+    return $matches[0];
+  }
+  switch (strrpos($matches[0], '\\')) {
+    case FALSE :
+      // No backslash, strip it.
+      return '';
+
+    case drupal_strlen($matches[0])-3 :
+      // Ends with \*/ so is a multi line IE-Mac hack, keep the next one also.
+      $keep_nextone = TRUE;
+      return '/*_\*/';
+
+    default :
+      // Single line IE-Mac hack.
+      return '/*\_*/';
+  }
+}
+
+/**
  * Loads stylesheets recursively and returns contents with corrected paths.
  *
  * This function is used for recursive loading of stylesheets and
Index: modules/simpletest/tests/common.test
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/tests/common.test,v
retrieving revision 1.112
diff -u -r1.112 common.test
--- modules/simpletest/tests/common.test	18 May 2010 06:59:46 -0000	1.112
+++ modules/simpletest/tests/common.test	16 Jun 2010 11:27:59 -0000
@@ -101,13 +101,13 @@
     $class = $this->randomName();
     $link = l($this->randomName(), $_GET['q'], array('attributes' => array('class' => array($class))));
     $this->assertTrue($this->hasClass($link, $class), t('Custom class @class is present on link when requested', array('@class' => $class)));
-    $this->assertTrue($this->hasClass($link, 'active'), t('Class @class is present on link to the current page', array('@class' => 'active')));    
+    $this->assertTrue($this->hasClass($link, 'active'), t('Class @class is present on link to the current page', array('@class' => 'active')));
   }
 
   private function hasClass($link, $class) {
     return preg_match('|class="([^\"\s]+\s+)*' . $class . '|', $link);
   }
-  
+
   /**
    * Test drupal_get_query_parameters().
    */
@@ -811,7 +811,8 @@
     // - Optimized expected content: name.css.optimized.css
     $testfiles = array(
       'css_input_without_import.css',
-      'css_input_with_import.css'
+      'css_input_with_import.css',
+      'comment_hacks.css'
     );
     $path = drupal_get_path('module', 'simpletest') . '/files/css_test_files';
     foreach ($testfiles as $file) {
Index: modules/simpletest/files/css_test_files/css_input_with_import.css.optimized.css
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/files/css_test_files/css_input_with_import.css.optimized.css,v
retrieving revision 1.1
diff -u -r1.1 css_input_with_import.css.optimized.css
--- modules/simpletest/files/css_test_files/css_input_with_import.css.optimized.css	7 Jan 2010 07:45:03 -0000	1.1
+++ modules/simpletest/files/css_test_files/css_input_with_import.css.optimized.css	16 Jun 2010 11:27:59 -0000
@@ -1,6 +1,8 @@
 
 ul,select{font:1em/160% Verdana,sans-serif;color:#494949;}.ui-icon{background-image:url(images/icon.png);}
-p,select{font:1em/160% Verdana,sans-serif;color:#494949;}body{margin:0;padding:0;background:#edf5fa;font:76%/170% Verdana,sans-serif;color:#494949;}.this .is .a .test{font:1em/100% Verdana,sans-serif;color:#494949;}.this
+
+p,select{font:1em/160% Verdana,sans-serif;color:#494949;}
+body{margin:0;padding:0;background:#edf5fa;font:76%/170% Verdana,sans-serif;color:#494949;}.this .is .a .test{font:1em/100% Verdana,sans-serif;color:#494949;}.this
 .is
 .a
-.test{font:1em/100% Verdana,sans-serif;color:#494949;}textarea,select{font:1em/160% Verdana,sans-serif;color:#494949;}
\ No newline at end of file
+.test{font:1em/100% Verdana,sans-serif;color:#494949;}textarea,select{font:1em/160% Verdana,sans-serif;color:#494949;}
Index: modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css,v
retrieving revision 1.2
diff -u -r1.2 css_input_without_import.css.optimized.css
--- modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css	10 Nov 2009 17:27:53 -0000	1.2
+++ modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css	16 Jun 2010 11:27:59 -0000
@@ -3,9 +3,7 @@
 
 
 
-body{margin:0;padding:0;background:#edf5fa;font:76%/170% Verdana,sans-serif;color:#494949;}.this .is .a .test{font:1em/100% Verdana,sans-serif;color:#494949;}
-
-.this
+body{margin:0;padding:0;background:#edf5fa;font:76%/170% Verdana,sans-serif;color:#494949;}.this .is .a .test{font:1em/100% Verdana,sans-serif;color:#494949;}.this
 .is
 .a
-.test{font:1em/100% Verdana,sans-serif;color:#494949;}textarea,select{font:1em/160% Verdana,sans-serif;color:#494949;}
\ No newline at end of file
+.test{font:1em/100% Verdana,sans-serif;color:#494949;}textarea,select{font:1em/160% Verdana,sans-serif;color:#494949;}
Index: modules/simpletest/files/css_test_files/comment_hacks.css.unoptimized.css
===================================================================
RCS file: modules/simpletest/files/css_test_files/comment_hacks.css.unoptimized.css
diff -N modules/simpletest/files/css_test_files/comment_hacks.css.unoptimized.css
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ modules/simpletest/files/css_test_files/comment_hacks.css.unoptimized.css	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,80 @@
+/*
+* A sample css file, designed to test the effectiveness and stability
+* of function <code>drupal_load_stylesheet_content()</code>.
+*
+*/
+/*
+A large comment block to test for segfaults and speed. This is 60K a's. Extreme but usefull to demonstrate flaws in comment striping regexp. aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa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/
+.test1 { display:block;}
+
+/* A multiline IE-mac hack (v.2) taken fron Zen theme*/
+/* Hides from IE-mac \*/
+html .clear-block {
+ height: 1%;
+}
+.clear-block {
+ display: block;
+ font:italic bold 12px/30px Georgia, serif;
+}
+
+/* End hide from IE-mac */
+.test2 { display:block; }
+
+/* v1 of the commented backslash hack. This \ character between rules appears to have the effect
+that macIE5 ignores the following rule. Odd, but extremely useful. */
+.bkslshv1 { background-color: #C00; }
+.test3 { display:block; }
+
+/**************** A multiline, multistar comment ***************
+****************************************************************/
+.test4 { display:block;}
+
+/**************************************/
+.comment-in-double-quotes:before {
+  content: "/* ";
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-double-quotes:after {
+  content: " */";
+}
+/**************************************/
+.comment-in-single-quotes:before {
+  content: '/*';
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-single-quotes:after {
+  content: '*/';
+}
+/**************************************/
+.comment-in-mixed-quotes:before {
+  content: '"/*"';
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-mixed-quotes:after {
+  content: "'*/'";
+}
+/**************************************/
+.comment-in-quotes-with-escaped:before {
+  content: '/* \" \' */';
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-quotes-with-escaped:after {
+  content: "*/ \" \ '";
+}
+/************************************/
+/*
+"This has to go"
+'This has to go'
+*/
Index: modules/simpletest/files/css_test_files/comment_hacks.css
===================================================================
RCS file: modules/simpletest/files/css_test_files/comment_hacks.css
diff -N modules/simpletest/files/css_test_files/comment_hacks.css
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ modules/simpletest/files/css_test_files/comment_hacks.css	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,80 @@
+/*
+* A sample css file, designed to test the effectiveness and stability
+* of function <code>drupal_load_stylesheet_content()</code>.
+*
+*/
+/*
+A large comment block to test for segfaults and speed. This is 60K a's. Extreme but usefull to demonstrate flaws in comment striping regexp. aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa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/
+.test1 { display:block;}
+
+/* A multiline IE-mac hack (v.2) taken fron Zen theme*/
+/* Hides from IE-mac \*/
+html .clear-block {
+ height: 1%;
+}
+.clear-block {
+ display: block;
+ font:italic bold 12px/30px Georgia, serif;
+}
+
+/* End hide from IE-mac */
+.test2 { display:block; }
+
+/* v1 of the commented backslash hack. This \ character between rules appears to have the effect
+that macIE5 ignores the following rule. Odd, but extremely useful. */
+.bkslshv1 { background-color: #C00; }
+.test3 { display:block; }
+
+/**************** A multiline, multistar comment ***************
+****************************************************************/
+.test4 { display:block;}
+
+/**************************************/
+.comment-in-double-quotes:before {
+  content: "/* ";
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-double-quotes:after {
+  content: " */";
+}
+/**************************************/
+.comment-in-single-quotes:before {
+  content: '/*';
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-single-quotes:after {
+  content: '*/';
+}
+/**************************************/
+.comment-in-mixed-quotes:before {
+  content: '"/*"';
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-mixed-quotes:after {
+  content: "'*/'";
+}
+/**************************************/
+.comment-in-quotes-with-escaped:before {
+  content: '/* \" \' */';
+}
+.this_rule_must_stay {
+  color: #F00;
+  background-color: #FFF;
+}
+.comment-in-quotes-with-escaped:after {
+  content: "*/ \" \ '";
+}
+/************************************/
+/*
+"This has to go"
+'This has to go'
+*/
Index: modules/simpletest/files/css_test_files/comment_hacks.css.optimized.css
===================================================================
RCS file: modules/simpletest/files/css_test_files/comment_hacks.css.optimized.css
diff -N modules/simpletest/files/css_test_files/comment_hacks.css.optimized.css
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ modules/simpletest/files/css_test_files/comment_hacks.css.optimized.css	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,6 @@
+
+
+.test1{display:block;}/*_\*/
+html .clear-block{height:1%;}.clear-block{display:block;font:italic bold 12px/30px Georgia,serif;}/* End hide from IE-mac */
+.test2{display:block;}/*\_*/
+.bkslshv1{background-color:#C00;}.test3{display:block;}.test4{display:block;}.comment-in-double-quotes:before{content:"/* ";}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-double-quotes:after{content:" */";}.comment-in-single-quotes:before{content:'/*';}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-single-quotes:after{content:'*/';}.comment-in-mixed-quotes:before{content:'"/*"';}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-mixed-quotes:after{content:"'*/'";}.comment-in-quotes-with-escaped:before{content:'/* \" \' */';}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-quotes-with-escaped:after{content:"*/ \" \ '";}
