diff options
Diffstat (limited to 'system/core/Output.php')
| -rwxr-xr-x | system/core/Output.php | 74 |
1 files changed, 55 insertions, 19 deletions
diff --git a/system/core/Output.php b/system/core/Output.php index 9bc02fc84..c4eba30bb 100755 --- a/system/core/Output.php +++ b/system/core/Output.php @@ -593,12 +593,12 @@ class CI_Output { $size_before = strlen($output); - // Keep track of <pre> <code> and <textarea> tags as - // they were before processing. - // We'll want to return them to this state later. + // Find all the <pre>,<code>,<textarea>, and <javascript> tags + // We'll want to return them to this unprocessed state later. preg_match_all('{<pre.+</pre>}msU', $output, $pres_clean); preg_match_all('{<code.+</code>}msU', $output, $codes_clean); preg_match_all('{<textarea.+</textarea>}msU', $output, $textareas_clean); + preg_match_all('{<script.+</script>}msU', $output, $javascript_clean); // Minify the CSS in all the <style> tags. preg_match_all('{<style.+</style>}msU', $output, $style_clean); @@ -606,39 +606,75 @@ class CI_Output { { $output = str_replace($s, $this->minify($s,'text/css'), $output); } + + // Minify the javascript in <script> tags. + foreach ($javascript_clean[0] as $s) + { + $javascript_mini[] = $this->minify($s,'text/javascript'); + } // Replace multiple spaces with a single space. - $output = preg_replace('!\s{2,}!', "\n", $output); + $output = preg_replace('!\s{2,}!',' ', $output); // Remove comments (non-MSIE conditionals) $output = preg_replace('{\s*<!--[^\[].*-->\s*}msU', '', $output); // Remove spaces around block-level elements. - $output = preg_replace('{\s*(</?(html|head|title|meta|script|link|style|body|h[1-6]|div|p|br).*>)\s*}', '$1', $output); + $output = preg_replace('{\s*(</?(html|head|title|meta|script|link|style|body|h[1-6]|div|p|br).*>)\s+}msU', '$1', $output); // Replace mangled <pre> etc. tags with unprocessed ones. - preg_match_all('{<pre.+</pre>}msU', $output, $pres_messed); - preg_match_all('{<code.+</code>}msU', $output, $codes_messed); - preg_match_all('{<textarea.+</textarea>}msU', $output, $textareas_messed); - $output = str_replace($pres_messed[0], $pres_clean[0], $output); - $output = str_replace($codes_messed[0], $codes_clean[0], $output); - $output = str_replace($textareas_messed[0], $textareas_clean[0], $output); - $size_after = strlen($output); - $savings_percent = round(100 - ($size_after / $size_before * 100)); + if ( ! empty($pres_clean)) + { + preg_match_all('{<pre.+</pre>}msU', $output, $pres_messed); + $output = str_replace($pres_messed[0], $pres_clean[0], $output); + } + + if ( ! empty($codes_clean)) + { + preg_match_all('{<code.+</code>}msU', $output, $codes_messed); + $output = str_replace($codes_messed[0], $codes_clean[0], $output); + } + + if ( ! empty($codes_clean)) + { + preg_match_all('{<textarea.+</textarea>}msU', $output, $textareas_messed); + $output = str_replace($textareas_messed[0], $textareas_clean[0], $output); + } - log_message('debug', 'Minifier shaved '.$savings_percent.'% off HTML output size.'); + if (isset($javascript_mini)) + { + preg_match_all('{<script.+</script>}msU', $output, $javascript_messed); + $output = str_replace($javascript_messed[0], $javascript_mini, $output); + } + + $size_removed = $size_before - strlen($output); + $savings_percent = round(($size_removed / $size_before * 100)); + + log_message('debug', 'Minifier shaved '.($size_removed / 1000).'KB ('.$savings_percent.'%) off final HTML output.'); break; case 'text/css': - // Remove spaces around curly brackets, colons, and semi-colons - $output = preg_replace('!\s*(:|;|}|{)\s*!', '$1', $output); - - // Replace spaces with line breaks to limit line lengths - $output = preg_replace('!\s+!', "\n", $output); + //Remove CSS comments + $output = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $output); + + // Remove spaces around curly brackets, colons, + // semi-colons, parenthesis, commas + $output = preg_replace('!\s*(:|;|,|}|{|\(|\))\s*!', '$1', $output); + + break; + + + case 'text/javascript': + + // Replace multiple spaces with a single newline. + $output = preg_replace('!\s{2,}!',"\n", $output); + + // Remove excessive newlines. + $output = preg_replace('!(;|{|})\n!','$1', $output); break; } |