private function CSSCompression_Organize::reduceSelectors in Advanced CSS/JS Aggregation 7

Same name and namespace in other branches

1. 6 advagg_css_compress/css-compressor-3.x/src/lib/Organize.inc \CSSCompression_Organize::reduceSelectors()

Combines multiply defined selectors by merging the rule sets, latter declarations overide declaratins at top of file

Parameters

(array) selectors: Array of selectors broken down by setup:

(array) details: Array of rule sets broken down by setup:

1 call to CSSCompression_Organize::reduceSelectors()

CSSCompression_Organize::organize in advagg_css_compress/css-compressor-3.x/src/lib/Organize.inc

Look to see if we can combine selectors to reduce the number of definitions.

File

advagg_css_compress/css-compressor-3.x/src/lib/Organize.inc, line 57

Class

CSSCompression_Organize

CSS Compressor [VERSION] [DATE] Corey Hart @ http://www.codenothing.com

Code

private function reduceSelectors($selectors, $details) {
  $keys = array_keys($selectors);
  $max = array_pop($keys) + 1;
  for ($i = 0; $i < $max; $i++) {
    if (!isset($selectors[$i])) {
      continue;
    }
    for ($k = $i + 1; $k < $max; $k++) {
      if (!isset($selectors[$k])) {
        continue;
      }
      if ($selectors[$i] == $selectors[$k]) {

        // Prevent noticies
        if (!isset($details[$i])) {
          $details[$i] = '';
        }
        if (!isset($details[$k])) {
          $details[$k] = '';
        }

        // We kill the last semicolon before organization, so account for that.
        if ($details[$i] != '' && $details[$k] != '' && !preg_match($this->rlastsemi, $details[$i])) {
          $details[$i] .= ';' . $details[$k];
        }
        else {
          $details[$i] .= $details[$k];
        }

        // Remove the second part
        unset($selectors[$k], $details[$k]);
      }
    }
  }
  return array(
    $selectors,
    $details,
  );
}