drupal_find_theme_functions

• Drupal 6
• Drupal 7

Versions

6 – 7

drupal_find_theme_functions($cache, $prefixes)

Find overridden theme functions. Called by themes and/or theme engines to easily discover theme functions.

Parameters

$cache The existing cache of theme hooks to test against.

$prefixes An array of prefixes to test, in reverse order of importance.

Return value

$templates The functions found, suitable for returning from hook_theme;

Code

includes/theme.inc, line 755

<?php
function drupal_find_theme_functions($cache, $prefixes) {
  $templates = array();
  $functions = get_defined_functions();

  foreach ($cache as $hook => $info) {
    foreach ($prefixes as $prefix) {
      if (!empty($info['pattern'])) {
        $matches = preg_grep('/^'. $prefix .'_'. $info['pattern'] .'/', $functions['user']);
        if ($matches) {
          foreach ($matches as $match) {
            $new_hook = str_replace($prefix .'_', '', $match);
            $templates[$new_hook] = array(
              'function' => $match,
              'arguments' => $info['arguments'],
              'original hook' => $hook,
            );
          }
        }
      }
      if (function_exists($prefix .'_'. $hook)) {
        $templates[$hook] = array(
          'function' => $prefix .'_'. $hook,
        );
        // Ensure that the pattern is maintained from base themes to its sub-themes.
        // Each sub-theme will have their functions scanned so the pattern must be
        // held for subsequent runs.
        if (isset($info['pattern'])) {
          $templates[$hook]['pattern'] = $info['pattern'];
        }
      }
    }
  }

  return $templates;
}
?>

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