fetch_from_context($context, 'values')); return $form; } /** * Condition form submit handler. */ function condition_form_submit($values) { $parsed = array(); $items = explode("\n", $values); if (!empty($items)) { foreach ($items as $v) { $v = trim($v); if (!empty($v)) { $parsed[$v] = $v; } } } return $parsed; } /** * Execute. */ function execute() { if ($this->condition_used()) { // Include both the path alias and normal path for matching. $current_path = array(drupal_get_path_alias($_GET['q'])); if ($current_path[0] != $_GET['q']) { $current_path[] = $_GET['q']; } foreach ($this->get_contexts() as $context) { $paths = $this->fetch_from_context($context, 'values'); if ($this->match($current_path, $paths, TRUE)) { $this->condition_met($context); } } } } /** * Match the subject against a set of regex patterns. * Similar to drupal_match_path() but also handles negation through the use * of the ~ character. * * @param mixed $subject * The subject string or an array of strings to be matched. * @param array $patterns * An array of patterns. Any patterns that begin with ~ are considered * negative or excluded conditions. * @param boolean $path * Whether the given subject should be matched as a Drupal path. If TRUE, * '' will be replaced with the site frontpage when matching against * $patterns. */ protected function match($subject, $patterns, $path = FALSE) { static $regexps; $match = FALSE; $positives = $negatives = 0; $subject = !is_array($subject) ? array($subject) : $subject; foreach ($patterns as $pattern) { if (strpos($pattern, '~') === 0) { $negate = TRUE; $negatives++; } else { $negate = FALSE; $positives++; } $pattern = ltrim($pattern, '~'); if (!isset($regexps[$pattern])) { if ($path) { $regexps[$pattern] = '/^(' . preg_replace(array('/(\r\n?|\n)/', '/\\\\\*/', '/(^|\|)\\\\($|\|)/'), array('|', '.*', '\1' . preg_quote(variable_get('site_frontpage', 'node'), '/') . '\2'), preg_quote($pattern, '/')) . ')$/'; } else { $regexps[$pattern] = '/^(' . preg_replace(array('/(\r\n?|\n)/', '/\\\\\*/'), array('|', '.*'), preg_quote($pattern, '/')) . ')$/'; } } foreach ($subject as $value) { if (preg_match($regexps[$pattern], $value)) { if ($negate) { return FALSE; } $match = TRUE; } } } // If there are **only** negative conditions and we've gotten this far none // we actually have a match. if ($positives === 0 && $negatives) { return TRUE; } return $match; } }