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-rw-r--r--system/core/Output.php208
1 files changed, 0 insertions, 208 deletions
diff --git a/system/core/Output.php b/system/core/Output.php
index e8f0b1590..09d251fe2 100644
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -426,14 +426,6 @@ class CI_Output {
// --------------------------------------------------------------------
- // Is minify requested?
- if ($CFG->item('minify_output') === TRUE)
- {
- $output = $this->minify($output, $this->mime_type);
- }
-
- // --------------------------------------------------------------------
-
// Do we need to write a cache file? Only if the controller does not have its
// own _output() method and we are not dealing with a cache file, which we
// can determine by the existence of the $CI object above
@@ -784,206 +776,6 @@ class CI_Output {
}
}
- // --------------------------------------------------------------------
-
- /**
- * Minify
- *
- * Reduce excessive size of HTML/CSS/JavaScript content.
- *
- * @param string $output Output to minify
- * @param string $type Output content MIME type
- * @return string Minified output
- */
- public function minify($output, $type = 'text/html')
- {
- switch ($type)
- {
- case 'text/html':
-
- if (($size_before = strlen($output)) === 0)
- {
- return '';
- }
-
- // 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, $style_clean);
- foreach ($style_clean[0] as $s)
- {
- $output = str_replace($s, $this->_minify_js_css($s, 'css', TRUE), $output);
- }
-
- // Minify the javascript in <script> tags.
- foreach ($javascript_clean[0] as $s)
- {
- $javascript_mini[] = $this->_minify_js_css($s, 'js', TRUE);
- }
-
- // Replace multiple spaces with a single space.
- $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|table|thead|tbody|tfoot|tr|th|td|h[1-6]|div|p|br)[^>]*>)\s*/is', '$1', $output);
-
- // Replace mangled <pre> etc. tags with unprocessed ones.
-
- if ( ! empty($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], $output);
- }
-
- if ( ! empty($textareas_clean))
- {
- preg_match_all('{<textarea.+</textarea>}msU', $output, $textareas_messed);
- $output = str_replace($textareas_messed[0], $textareas_clean[0], $output);
- }
-
- if (isset($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':
-
- return $this->_minify_js_css($output, 'css');
-
- case 'text/javascript':
- case 'application/javascript':
- case 'application/x-javascript':
-
- return $this->_minify_js_css($output, 'js');
-
- default: break;
- }
-
- return $output;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Minify JavaScript and CSS code
- *
- * Strips comments and excessive whitespace characters
- *
- * @param string $output
- * @param string $type 'js' or 'css'
- * @param bool $tags Whether $output contains the 'script' or 'style' tag
- * @return string
- */
- protected function _minify_js_css($output, $type, $tags = FALSE)
- {
- if ($tags === TRUE)
- {
- $tags = array('close' => strrchr($output, '<'));
-
- $open_length = strpos($output, '>') + 1;
- $tags['open'] = substr($output, 0, $open_length);
-
- $output = substr($output, $open_length, -strlen($tags['close']));
-
- // Strip spaces from the tags
- $tags = preg_replace('#\s{2,}#', ' ', $tags);
- }
-
- $output = trim($output);
-
- if ($type === 'js')
- {
- // Catch all string literals and comment blocks
- if (preg_match_all('#((?:((?<!\\\)\'|")|(/\*)|(//)).*(?(2)(?<!\\\)\2|(?(3)\*/|\n)))#msuUS', $output, $match, PREG_OFFSET_CAPTURE))
- {
- $js_literals = $js_code = array();
- for ($match = $match[0], $c = count($match), $i = $pos = $offset = 0; $i < $c; $i++)
- {
- $js_code[$pos++] = trim(substr($output, $offset, $match[$i][1] - $offset));
- $offset = $match[$i][1] + strlen($match[$i][0]);
-
- // Save only if we haven't matched a comment block
- if ($match[$i][0][0] !== '/')
- {
- $js_literals[$pos++] = array_shift($match[$i]);
- }
- }
- $js_code[$pos] = substr($output, $offset);
-
- // $match might be quite large, so free it up together with other vars that we no longer need
- unset($match, $offset, $pos);
- }
- else
- {
- $js_code = array($output);
- $js_literals = array();
- }
-
- $varname = 'js_code';
- }
- else
- {
- $varname = 'output';
- }
-
- // Standartize new lines
- $$varname = str_replace(array("\r\n", "\r"), "\n", $$varname);
-
- if ($type === 'js')
- {
- $patterns = array(
- '#\s*([!\#%&()*+,\-./:;<=>?@\[\]^`{|}~])\s*#' => '$1', // Remove spaces following and preceeding JS-wise non-special & non-word characters
- '#\s{2,}#' => ' ' // Reduce the remaining multiple whitespace characters to a single space
- );
- }
- else
- {
- $patterns = array(
- '#/\*.*(?=\*/)\*/#s' => '', // Remove /* block comments */
- '#\n?//[^\n]*#' => '', // Remove // line comments
- '#\s*([^\w.\#%])\s*#U' => '$1', // Remove spaces following and preceeding non-word characters, excluding dots, hashes and the percent sign
- '#\s{2,}#' => ' ' // Reduce the remaining multiple space characters to a single space
- );
- }
-
- $$varname = preg_replace(array_keys($patterns), array_values($patterns), $$varname);
-
- // Glue back JS quoted strings
- if ($type === 'js')
- {
- $js_code += $js_literals;
- ksort($js_code);
- $output = implode($js_code);
- unset($js_code, $js_literals, $varname, $patterns);
- }
-
- return is_array($tags)
- ? $tags['open'].$output.$tags['close']
- : $output;
- }
-
}
/* End of file Output.php */
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