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<?php
error_reporting(E_ALL);
require realpath(dirname(__FILE__)).'/../lessc.inc.php';
// sorts the selectors in stylesheet in order to normalize it for comparison
$exe = array_shift($argv); // remove filename
if (!$fname = array_shift($argv)) {
$fname = "php://stdin";
}
// also sorts the tags in the block
function sort_key($block) {
if (!isset($block->sort_key)) {
sort($block->tags, SORT_STRING);
$block->sort_key = implode(",", $block->tags);
}
return $block->sort_key;
}
class sort_css extends lessc {
function __construct() {
parent::__construct();
}
// normalize numbers
function compileValue($value) {
$ignore = array('list', 'keyword', 'string', 'color', 'function');
if ($value[0] == 'number' || !in_array($value[0], $ignore)) {
$value[1] = $value[1] + 0; // convert to either double or int
}
return parent::compileValue($value);
}
function parse_and_sort($str) {
$root = $this->parseTree($str);
$less = $this;
usort($root->props, function($a, $b) use ($less) {
$sort = strcmp(sort_key($a[1]), sort_key($b[1]));
if ($sort == 0)
return strcmp($less->compileBlock($a[1]), $less->compileBlock($b[1]));
return $sort;
});
return $this->compileBlock($root);
}
}
$sorter = new sort_css;
echo $sorter->parse_and_sort(file_get_contents($fname));
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