Same name in other branches
  1. 6.0.x advagg_mod/src/Asset/TranslateCss.php \Drupal\advagg_mod\Asset\TranslateCss::translateCallback()
  2. 8.x-3.x advagg_mod/src/Asset/TranslateCss.php \Drupal\advagg_mod\Asset\TranslateCss::translateCallback()
  3. 8.x-4.x advagg_mod/src/Asset/TranslateCss.php \Drupal\advagg_mod\Asset\TranslateCss::translateCallback()

Run preg matches through the t() function.

Parameters

array $matches: Array of matches from preg_replace_callback().

Return value

string Replaced string.

File

advagg_mod/src/Asset/TranslateCss.php, line 56

Class

TranslateCss
Applies the t() function to strings in CSS assets.

Namespace

Drupal\advagg_mod\Asset

Code

protected function translateCallback(array $matches) {
    // Skip if equal to ; or }.
    if ($matches[1] === ';' || $matches[1] === '}') {
        return $matches[0];
    }
    // Remove quotes for t function.
    $before = substr($matches[1], 1, -1);
    // Only run if it contains A-Za-z.
    if (!preg_match('/[A-Za-z]/', $before)) {
        return $matches[0];
    }
    // Only run if it contains characters other than unicode.
    $css_unicode_pattern = '/\\\\[0-9a-fA-F]{1,6}(?:\\r\\n|[ \\t\\r\\n\\f])?/';
    $unicode_removed = preg_replace($css_unicode_pattern, '', $before);
    if (empty($unicode_removed)) {
        return $matches[0];
    }
    // Run t function and put back into string.
    return str_replace($before, (string) $this->t('@before', [
        '@before' => $before,
    ]), $matches[0]);
}