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Bug fix: #13

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Bug fix: #13

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4 changes: 2 additions & 2 deletions cssmin.php
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Original file line number Diff line number Diff line change
Expand Up @@ -90,7 +90,7 @@ public function run($css = '', $linebreak_pos = FALSE)
}

// preserve strings so their content doesn't get accidentally minified
$css = preg_replace_callback('/(?:"(?:[^\\\\"]|\\\\.|\\\\)*")|'."(?:'(?:[^\\\\']|\\\\.|\\\\)*')/S", array($this, 'replace_string'), $css);
$css = preg_replace_callback('/(?:"(?:[^\\\\";}]|\\\\.|\\\\)*")|'."(?:'(?:[^\\\\';}]|\\\\.|\\\\)*')/S", array($this, 'replace_string'), $css);

// Let's divide css code in chunks of 5.000 chars aprox.
// Reason: PHP's PCRE functions like preg_replace have a "backtrack limit"
Expand Down Expand Up @@ -337,7 +337,7 @@ private function minify($css, $linebreak_pos)
$css = preg_replace('/(\*[a-z0-9\-]+\s*\:[^;\}]+)(\})/', '$1;$2', $css);

// Replace 0 length units 0(px,em,%) with 0.
$css = preg_replace('/(^|[^0-9])(?:0?\.)?0(?:em|ex|ch|rem|vw|vh|vm|vmin|cm|mm|in|px|pt|pc|%|deg|g?rad|m?s|k?hz)/iS', '${1}0', $css);
$css = preg_replace('/(^|[^0-9]):(?:0?\.)?0(?:em|ex|ch|rem|vw|vh|vm|vmin|cm|mm|in|px|pt|pc|%|deg|g?rad|m?s|k?hz)/iS', '${1}:0', $css);

// 0% step in a keyframe? restore the % unit
$css = preg_replace_callback('/(@[a-z\-]*?keyframes[^\{]*?\{)(.*?\}\s*\})/iS', array($this, 'replace_keyframe_zero'), $css);
Expand Down