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<?php
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// $Id: i18n_auto.module,v 1.2 2007/06/06 20:17:56 aaron Exp $
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/**
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* Implement hook_menu
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*/
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function i18n_auto_menu($may_cache) {
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$items = array();
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if ($may_cache) {
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$items[] = array(
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'path' => 'admin/settings/i18n/auto',
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'title' => t('Auto Translation'),
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'type' => MENU_LOCAL_TASK,
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'callback' => 'drupal_get_form',
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'callback arguments' => array('i18n_auto_admin_settings'),
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'weight' => 3,
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'access' => user_access('administer i18n auto'),
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);
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$items[] = array(
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'path' => 'i18n_auto/translate',
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'callback' => '_i18n_auto_translate',
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'type' => MENU_CALLBACK,
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'access' => user_access('i18n auto translate'),
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);
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}
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return $items;
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}
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/**
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* Implement hook_perm
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*/
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function i18n_auto_perm() {
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return array('i18n auto translate', 'administer i18n auto');
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}
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/**
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* This displays the global settings for auto translate. It will create a field for each 3rd party translator included
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* in the /translators directory of the i18n_auto module directory. When writing your own include file, you may include
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* a fieldset for your translator by implementing the i18n_auto_TRANSLATOR_settings hook (replacing TRANSLATOR with the
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* name of your .inc file).
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*/
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function i18n_auto_admin_settings() {
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$form = array();
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$translators = i18n_auto_system_list();
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foreach ($translators as $translator) {
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$info = i18n_auto_include_invoke($translator->name, 'info');
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$form[$translator->name] = array(
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'#type' => 'fieldset',
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'#title' => t('@translator Configuration', array('@translator' => $info['name'])),
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'#description' => $info['settings_description'],
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'#collapsible' => true,
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'#collapsed' => true,
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);
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$form[$translator->name][] = i18n_auto_include_invoke($translator->name, 'settings');
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$form[$translator->name]['i18n_auto_allow_' . $translator->name] = array(
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'#type' => 'checkbox',
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'#title' => t('Allow translation from %translator', array('%translator' => $info['name'])),
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'#description' => t('If checked, then automatic translation may be provided by %translator.', array('%translator' => $info['name'])),
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'#weight' => -10,
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'#default_value' => variable_get('i18n_auto_allow_' . $translator->name, true),
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);
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}
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return system_settings_form($form);
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}
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/**
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* TODO: have it intelligently check which forms & textareas it's allowed to add a button to, and use jsquery
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*/
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function i18n_auto_form_alter($form_id, &$form) {
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// print "form: $form_id<br />\n";
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// print_r($form);
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if ($form['#id'] == 'node-form') {
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$js = '';
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foreach (_i18n_auto_form_iterate_for_textareas($form) as $element => $item) {
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$field = 'i18n_auto_translate_' . $element;
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$form[$field] = array(
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'#type' => 'fieldset',
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'#title' => t('Auto Translation'),
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'#collapsible' => true,
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'#collapsed' => false,
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'#weight' => $item['#weight'],
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'#attributes' => array(
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'#class' => 'i18n-auto-fieldset',
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),
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'#description' => t('Selecting one of these translation services will replace the text in the %textarea textarea with a translated version.', array('%textarea' => $item['#title'])),
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);
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$edit_id = form_clean_id('edit-' . $element);
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$revert_id = form_clean_id('edit-' . 'i18n_auto_revert_' . $element);
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$js .= "
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i18n_original_text['$element'] = $('#$edit_id').attr('value');
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$('#$revert_id').click(
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function() {
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$('#$edit_id').attr('value', i18n_original_text['$element']);
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return false;
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}
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);
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";
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$translators = i18n_auto_system_list();
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foreach ($translators as $translator) {
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$button = $field . '_' . $translator->name;
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$form[$field][$button] = array(
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'#type' => 'button',
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'#value' => t('Translate with @translator', array('@translator' => $translator->name)),
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);
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$id = form_clean_id('edit-' . $button);
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$link = url('i18n_auto/translate/' . $translator->name);
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$js .= "
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$('#$id').click(
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function() {
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return i18n_auto_click('#$id', '#$edit_id', '$element', '$link');
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}
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);
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";
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}
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$form[$field]['i18n_auto_revert_' . $element] = array(
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'#type' => 'button',
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'#value' => t('Revert to original', array('@translator' => $translator->name)),
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);
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}
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if ($js) {
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$js = "
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if (Drupal.jsEnabled) {
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function i18n_auto_click(_id, _edit_id, _element, _link) {
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var _new_value = function(data) {
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var result = Drupal.parseJson(data);
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if (result['text']) {
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i18n_original_text[_element] = $(_edit_id).attr('value');
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$(_edit_id).attr('value', result['text']);
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}
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}
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if ($(_edit_id).attr('value')) {
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$.post(_link, {text: $(_edit_id).attr('value'), from: $('#edit-language').attr('value') }, _new_value);
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}
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return false;
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}
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var i18n_original_text = new Array();
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$(document).ready(function(){\n" . $js . "\n });\n }\n\n";
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drupal_add_js($js, 'inline');
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}
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}
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}
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function _i18n_auto_translate($translator) {
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$translators = i18n_auto_system_list($translator);
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if (!$translators[$translator]) {
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drupal_not_found();
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}
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$text = $_POST['text'];
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$from = $_POST['from'];
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// TODO: change default language to drupal's locale's default language...
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$to = $_POST['to'] ? $_POST['to'] : variable_get('i18n_auto_translate_to_lang_default', 'es');
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// $translation = check_plain(i18n_auto_include_invoke($translator, 'translate', drupal_urlencode($text)));
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$translation = i18n_auto_include_invoke($translator, 'translate', $text, $from, $to);
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// Google flattens the input markup. Put it back
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$translation = htmlspecialchars_decode($translation);
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// print drupal_urlencode($translation);
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print drupal_to_js(array('text' => $translation));
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exit();
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}
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/**
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* This will return all the (nested) textarea elements in a form.
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*/
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function _i18n_auto_form_iterate_for_textareas($form) {
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static $elements;
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if (!isset($elements)) {
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$elements = array();
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}
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foreach (element_children($form) as $element) {
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$item = $form[$element];
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if ($item['#type'] == 'textarea') {
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$elements[$element] = $item;
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}
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else if (is_array($item)) {
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_i18n_auto_form_iterate_for_textareas($item);
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}
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}
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return $elements;
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}
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/**
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* Return an array of installed .inc files and/or loads them upon request.
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* This routine is modeled after drupal_system_listing() (and also depends on it).
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* It's major difference, however, is that it loads .inc files by default.
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*
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* @param $translator
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* Optional; name of the passed $translator to find (e.g. "youtube", "google", etc.).
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* @param $load
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* Defaults to true; whether to include matching files into memory.
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* @return
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* An array of file objects optionally matching $translator.
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*/
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function i18n_auto_system_list($translator = NULL, $load = true) {
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$files = drupal_system_listing("$translator\.inc", drupal_get_path('module', 'i18n_auto')."/translators", 'name', 0);
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ksort($files);
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if ($load) {
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foreach ($files as $file) {
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i18n_auto_include_list($file);
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}
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}
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return $files;
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}
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/**
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* Maintains a list of all loaded include files.
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*
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* @param $file
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* Optional; a file object (from i18n_auto_system_list()) to be included.
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* @return
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* An array of all loaded includes (without the .inc extension).
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*/
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function i18n_auto_include_list($file = NULL) {
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static $list = array();
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// if (!$list) { $list = array(); }
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if ($file && !isset($list[$file->name])) {
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include_once('./'.$file->filename);
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$list[$file->name] = $file->name;
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}
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return $list;
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}
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/**
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* Determine whether an include implements a hook, cf. module_hook.
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*
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* @param $translator
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* The name of the translator file (without the .inc extension), such as 'youtube' or 'google'.
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* @param $hook
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* The name of the hook (e.g. "thumbnail", "settings", etc.).
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* @return
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* TRUE if the translator is loaded and the hook is implemented.
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*/
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function i18n_auto_include_hook($translator, $hook) {
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return function_exists('i18n_auto_' . $translator .'_'. $hook);
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}
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/**
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* Invoke hook in a particular include.
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*
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* @param $translator
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* The name of the translator (without the .inc extension).
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* @param $hook
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* The name of the hook (e.g. "settings", "thumbnail", etc.).
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* @param ...
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* Arguments to pass to the hook implementation.
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* @return
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* The return value of the hook implementation.
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*/
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function i18n_auto_include_invoke() {
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$args = func_get_args();
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$translator = array_shift($args);
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$hook = array_shift($args);
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$function = 'i18n_auto_' . $translator . '_' . $hook;
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i18n_auto_system_list($translator);
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return i18n_auto_include_hook($translator, $hook) ? call_user_func_array($function, $args) : NULL;
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}
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// to support PHP 4 users...
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if (!function_exists("htmlspecialchars_decode")) {
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function htmlspecialchars_decode($string, $quote_style = ENT_COMPAT) {
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return strtr($string, array_flip(get_html_translation_table(HTML_SPECIALCHARS, $quote_style)));
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}
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}
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