protected function captureCommentAndString($str)
{
$process = $this->process;
$callback = function ($m) use($process) {
$fullMatch = $m[0];
if (strpos($fullMatch, '/*') === 0) {
// Bail without storing comment if output is minified or a private comment.
if ($process->minifyOutput || strpos($fullMatch, '/*$') === 0) {
$label = '';
} else {
// Fix broken comments as they will break any subsquent
// imported files that are inlined.
if (!preg_match('~\\*/$~', $fullMatch)) {
$fullMatch .= '*/';
}
$label = $process->tokens->add($fullMatch, 'c');
}
} else {
// Fix broken strings as they will break any subsquent
// imported files that are inlined.
if ($fullMatch[0] !== $fullMatch[strlen($fullMatch) - 1]) {
$fullMatch .= $fullMatch[0];
}
$label = $process->tokens->add($fullMatch, 's');
}
return $process->generateMap ? Tokens::pad($label, $fullMatch) : $label;
};
return preg_replace_callback(Regex::$patt->commentAndString, $callback, $str);
}
public function captureUrls($str, $add_padding = false)
{
$count = preg_match_all(Regex::make('~@import \\s+ (?<import>{{s_token}}) | {{LB}} (?<func>url|data-uri) {{parens}}~ixS'), $str, $m, PREG_OFFSET_CAPTURE);
while ($count--) {
list($full_text, $full_offset) = $m[0][$count];
list($import_text, $import_offset) = $m['import'][$count];
// @import directive.
if ($import_offset !== -1) {
$label = $this->add(new Url(trim($import_text)));
$str = str_replace($import_text, $add_padding ? str_pad($label, strlen($import_text)) : $label, $str);
} else {
$func_name = strtolower($m['func'][$count][0]);
$url = new Url(trim($m['parens_content'][$count][0]));
$url->convertToData = 'data-uri' === $func_name;
$label = $this->add($url);
$str = substr_replace($str, $add_padding ? Tokens::pad($label, $full_text) : $label, $full_offset, strlen($full_text));
}
}
return $str;
}