function csstidy::_unicode in Advanced CSS/JS Aggregation 6

Parse unicode notations and find a replacement character

@access private

@version 1.2

Parameters

string $string:

integer $i:

Return value

string

1 call to csstidy::_unicode()

csstidy::parse in advagg_css_compress/csstidy/class.csstidy.inc

Parses CSS in $string. The code is saved as array in $this->css

File

advagg_css_compress/csstidy/class.csstidy.inc, line 409

Class

csstidy

CSS Parser class

Code

function _unicode(&$string, &$i) {
  ++$i;
  $add = '';
  $replaced = false;
  while ($i < strlen($string) && (ctype_xdigit($string[$i]) || ctype_space($string[$i])) && strlen($add) < 6) {
    $add .= $string[$i];
    if (ctype_space($string[$i])) {
      break;
    }
    $i++;
  }
  if (hexdec($add) > 47 && hexdec($add) < 58 || hexdec($add) > 64 && hexdec($add) < 91 || hexdec($add) > 96 && hexdec($add) < 123) {
    $this
      ->log('Replaced unicode notation: Changed \\' . $add . ' to ' . chr(hexdec($add)), 'Information');
    $add = chr(hexdec($add));
    $replaced = true;
  }
  else {
    $add = trim('\\' . $add);
  }
  if (@ctype_xdigit($string[$i + 1]) && ctype_space($string[$i]) && !$replaced || !ctype_space($string[$i])) {
    $i--;
  }
  if ($add !== '\\' || !$this
    ->get_cfg('remove_bslash') || strpos($this->tokens_list, $string[$i + 1]) !== false) {
    return $add;
  }
  if ($add === '\\') {
    $this
      ->log('Removed unnecessary backslash', 'Information');
  }
  return '';
}