function CSSCompression_Organize::reduceDetails

Combines multiply defined rule sets by merging the selectors in comma seperated format

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::reduceDetails()

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 104

Class

CSSCompression_Organize

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

Code

private function reduceDetails($selectors, $details) {
    $keys = array_keys($selectors);
    $max = array_pop($keys) + 1;
    for ($i = 0; $i < $max; $i++) {
        if (!isset($selectors[$i])) {
            continue;
        }
        $arr = preg_split($this->rsemicolon, isset($details[$i]) ? $details[$i] : '');
        for ($k = $i + 1; $k < $max; $k++) {
            if (!isset($selectors[$k])) {
                continue;
            }
            $match = preg_split($this->rsemicolon, isset($details[$k]) ? $details[$k] : '');
            $x = array_diff($arr, $match);
            $y = array_diff($match, $arr);
            if (count($x) < 1 && count($y) < 1) {
                $selectors[$i] .= ',' . $selectors[$k];
                unset($details[$k], $selectors[$k]);
            }
        }
    }
    return array(
        $selectors,
        $details,
    );
}