439 lines
15 KiB
PHP
439 lines
15 KiB
PHP
<?php
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/**
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* @file
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* Administration functions for language.module.
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*/
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/**
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* User interface for the language overview screen.
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*/
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function language_admin_overview_form($form, &$form_state) {
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drupal_static_reset('language_list');
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$languages = language_list();
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$default = language_default();
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$form['languages'] = array(
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'#languages' => $languages,
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'#language_default' => $default,
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'#tree' => TRUE,
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'#header' => array(
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t('Name'),
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t('Enabled'),
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t('Default'),
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t('Weight'),
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t('Operations'),
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),
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'#theme' => 'language_admin_overview_form_table',
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);
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foreach ($languages as $langcode => $language) {
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$form['languages'][$langcode]['#weight'] = $language->weight;
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$form['languages'][$langcode]['name'] = array(
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'#markup' => check_plain($language->name),
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);
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$form['languages'][$langcode]['enabled'] = array(
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'#type' => 'checkbox',
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'#title' => t('Enable @title', array('@title' => $language->name)),
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'#title_display' => 'invisible',
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'#default_value' => (int) $language->enabled,
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'#disabled' => $langcode == $default->langcode,
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);
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$form['languages'][$langcode]['default'] = array(
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'#type' => 'radio',
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'#parents' => array('site_default'),
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'#title' => t('Set @title as default', array('@title' => $language->name)),
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'#title_display' => 'invisible',
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'#return_value' => $langcode,
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'#default_value' => ($langcode == $default->langcode ? $langcode : NULL),
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'#id' => 'edit-site-default-' . $langcode,
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);
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$form['languages'][$langcode]['weight'] = array(
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'#type' => 'weight',
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'#title' => t('Weight for @title', array('@title' => $language->name)),
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'#title_display' => 'invisible',
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'#default_value' => $language->weight,
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'#attributes' => array(
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'class' => array('language-order-weight'),
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),
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);
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$form['languages'][$langcode]['operations'] = array(
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'#theme_wrappers' => array('language_admin_operations'),
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'#weight' => 100,
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);
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$form['languages'][$langcode]['operations']['edit'] = array(
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'#type' => 'link',
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'#title' => t('edit'),
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'#href' => 'admin/config/regional/language/edit/' . $langcode,
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);
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$form['languages'][$langcode]['operations']['delete'] = array(
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'#type' => 'link',
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'#title' => t('delete'),
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'#href' => 'admin/config/regional/language/delete/' . $langcode,
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'#access' => $langcode != $default->langcode,
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);
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}
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$form['actions'] = array('#type' => 'actions');
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$form['actions']['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Save configuration'),
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);
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return $form;
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}
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/**
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* Returns HTML for operation links in language_admin_overview_form() table.
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*
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* @todo Introduce #type '[table_]operations' or just simply #type 'links'.
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*/
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function theme_language_admin_operations($variables) {
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$links = array();
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foreach (element_children($variables['elements']) as $key) {
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// Children are only rendered if the current user has access.
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if (isset($variables['elements'][$key]['#children'])) {
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$links[$key] = $variables['elements'][$key]['#children'];
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}
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}
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// If there are links, render a link list.
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if (!empty($links)) {
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return theme('item_list__operations', array(
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'items' => $links,
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'attributes' => array('class' => array('links', 'inline')),
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));
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}
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// Otherwise, ensure to produce no output.
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return '';
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}
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/**
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* Returns HTML for the language overview form.
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*
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* @param $variables
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* An associative array containing:
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* - form: A render element representing the form.
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*
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* @ingroup themeable
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*/
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function theme_language_admin_overview_form_table($variables) {
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$form = $variables['form'];
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$rows = array();
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foreach (element_children($form, TRUE) as $langcode) {
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$element = &$form[$langcode];
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$row = array(
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'class' => array('draggable'),
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);
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foreach (element_children($element, TRUE) as $column) {
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$cell = &$element[$column];
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$row['data'][] = drupal_render($cell);
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}
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$rows[] = $row;
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}
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$output = theme('table', array(
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'header' => $form['#header'],
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'rows' => $rows,
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'attributes' => array('id' => 'language-order'),
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));
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$output .= drupal_render_children($form);
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drupal_add_tabledrag('language-order', 'order', 'sibling', 'language-order-weight');
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return $output;
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}
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/**
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* Process language overview form submissions, updating existing languages.
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*/
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function language_admin_overview_form_submit($form, &$form_state) {
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$languages = language_list();
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$old_default = language_default();
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foreach ($languages as $langcode => $language) {
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$language->default = ($form_state['values']['site_default'] == $langcode);
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$language->weight = $form_state['values']['languages'][$langcode]['weight'];
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if ($language->default || $old_default->langcode == $langcode) {
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// Automatically enable the default language and the language
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// which was default previously (because we will not get the
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// value from that disabled checkbox).
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$form_state['values']['languages'][$langcode]['enabled'] = 1;
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}
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$language->enabled = (int) !empty($form_state['values']['languages'][$langcode]['enabled']);
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language_save($language);
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}
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drupal_set_message(t('Configuration saved.'));
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}
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/**
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* User interface for the language addition screen.
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*/
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function language_admin_add_form($form, &$form_state) {
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$predefined_languages = language_admin_predefined_list();
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$predefined_languages['custom'] = t('Custom language...');
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$predefined_default = !empty($form_state['values']['predefined_langcode']) ? $form_state['values']['predefined_langcode'] : key($predefined_languages);
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$form['predefined_langcode'] = array(
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'#type' => 'select',
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'#title' => t('Language name'),
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'#default_value' => $predefined_default,
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'#options' => $predefined_languages,
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);
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$form['predefined_submit'] = array(
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'#type' => 'submit',
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'#value' => t('Add language'),
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'#limit_validation_errors' => array(array('predefined_langcode'), array('predefined_submit')),
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'#states' => array(
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'invisible' => array(
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'select#edit-predefined-langcode' => array('value' => 'custom'),
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),
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),
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'#validate' => array('language_admin_add_predefined_form_validate'),
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'#submit' => array('language_admin_add_predefined_form_submit'),
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);
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$form['custom_language'] = array(
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'#type' => 'container',
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'#states' => array(
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'visible' => array(
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'select#edit-predefined-langcode' => array('value' => 'custom'),
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),
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),
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);
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_language_admin_common_controls($form['custom_language']);
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$form['custom_language']['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Add custom language'),
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'#validate' => array('language_admin_add_custom_form_validate'),
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'#submit' => array('language_admin_add_custom_form_submit'),
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);
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return $form;
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}
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/**
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* Editing screen for a particular language.
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*
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* @param $langcode
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* Language code of the language to edit.
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*/
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function language_admin_edit_form($form, &$form_state, $language) {
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_language_admin_common_controls($form, $language);
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$form['actions'] = array('#type' => 'actions');
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$form['actions']['submit'] = array(
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'#type' => 'submit',
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'#value' => t('Save language')
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);
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$form['#submit'][] = 'language_admin_edit_form_submit';
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$form['#validate'][] = 'language_admin_edit_form_validate';
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return $form;
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}
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/**
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* Common elements of the language addition and editing form.
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*
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* @param $form
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* A parent form item (or empty array) to add items below.
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* @param $language
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* Language object to edit.
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*/
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function _language_admin_common_controls(&$form, $language = NULL) {
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if (!is_object($language)) {
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$language = new stdClass();
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}
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if (isset($language->langcode)) {
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$form['langcode_view'] = array(
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'#type' => 'item',
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'#title' => t('Language code'),
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'#markup' => $language->langcode
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);
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$form['langcode'] = array(
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'#type' => 'value',
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'#value' => $language->langcode
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);
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}
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else {
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$form['langcode'] = array(
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'#type' => 'textfield',
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'#title' => t('Language code'),
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'#maxlength' => 12,
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'#required' => TRUE,
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'#default_value' => @$language->langcode,
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'#disabled' => (isset($language->langcode)),
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'#description' => t('Use language codes as <a href="@w3ctags">defined by the W3C</a> for interoperability. <em>Examples: "en", "en-gb" and "zh-hant".</em>', array('@w3ctags' => 'http://www.w3.org/International/articles/language-tags/')),
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);
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}
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$form['name'] = array(
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'#type' => 'textfield',
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'#title' => t('Language name'),
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'#maxlength' => 64,
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'#default_value' => @$language->name,
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'#required' => TRUE,
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);
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$form['direction'] = array(
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'#type' => 'radios',
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'#title' => t('Direction'),
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'#required' => TRUE,
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'#description' => t('Direction that text in this language is presented.'),
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'#default_value' => @$language->direction,
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'#options' => array(LANGUAGE_LTR => t('Left to right'), LANGUAGE_RTL => t('Right to left'))
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);
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return $form;
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}
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/**
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* Element specific validator for the Add language button.
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*/
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function language_admin_add_predefined_form_validate($form, &$form_state) {
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$langcode = $form_state['values']['predefined_langcode'];
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if ($langcode == 'custom') {
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form_set_error('predefined_langcode', t('Fill in the language details and save the language with <em>Add custom language</em>.'));
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}
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else {
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if (language_load($langcode)) {
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form_set_error('predefined_langcode', t('The language %language (%langcode) already exists.', array('%language' => $languages[$langcode]->name, '%langcode' => $langcode)));
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}
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}
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}
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/**
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* Validate the language addition form on custom language button.
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*/
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function language_admin_add_custom_form_validate($form, &$form_state) {
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if ($form_state['values']['predefined_langcode'] == 'custom') {
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$langcode = $form_state['values']['langcode'];
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// Reuse the editing form validation routine if we add a custom language.
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language_admin_edit_form_validate($form, $form_state);
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$languages = language_list();
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if (isset($languages[$langcode])) {
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form_set_error('langcode', t('The language %language (%langcode) already exists.', array('%language' => $languages[$langcode]->name, '%langcode' => $langcode)));
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}
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}
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else {
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form_set_error('predefined_langcode', t('Use the <em>Add language</em> button to save a predefined language.'));
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}
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}
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/**
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* Process the custom language addition form submission.
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*/
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function language_admin_add_custom_form_submit($form, &$form_state) {
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$langcode = $form_state['values']['langcode'];
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// Custom language form.
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$language = (object) array(
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'langcode' => $langcode,
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'name' => $form_state['values']['name'],
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'direction' => $form_state['values']['direction'],
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);
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language_save($language);
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drupal_set_message(t('The language %language has been created and can now be used.', array('%language' => $form_state['values']['name'])));
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$form_state['redirect'] = 'admin/config/regional/language';
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}
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/**
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* Process the predefined language addition form submission.
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*/
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function language_admin_add_predefined_form_submit($form, &$form_state) {
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// Predefined language selection.
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$langcode = $form_state['values']['predefined_langcode'];
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include_once DRUPAL_ROOT . '/core/includes/standard.inc';
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$predefined = standard_language_list();
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$language = (object) array(
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'langcode' => $langcode,
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);
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language_save($language);
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drupal_set_message(t('The language %language has been created and can now be used.', array('%language' => t($predefined[$langcode][0]))));
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$form_state['redirect'] = 'admin/config/regional/language';
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}
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/**
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* Validate the language editing form. Reused for custom language addition too.
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*/
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function language_admin_edit_form_validate($form, &$form_state) {
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// Ensure sane field values for langcode and name.
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if (!isset($form['langcode_view']) && preg_match('@[^a-zA-Z_-]@', $form_state['values']['langcode'])) {
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form_set_error('langcode', t('%field may only contain characters a-z, underscores, or hyphens.', array('%field' => $form['langcode']['#title'])));
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}
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if ($form_state['values']['name'] != check_plain($form_state['values']['name'])) {
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form_set_error('name', t('%field cannot contain any markup.', array('%field' => $form['name']['#title'])));
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}
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}
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/**
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* Process the language editing form submission.
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*/
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function language_admin_edit_form_submit($form, &$form_state) {
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// Prepare a language object for saving
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$languages = language_list();
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$langcode = $form_state['values']['langcode'];
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$language = $languages[$langcode];
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$language->name = $form_state['values']['name'];
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$language->direction = $form_state['values']['direction'];
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language_save($language);
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$form_state['redirect'] = 'admin/config/regional/language';
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}
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/**
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* User interface for the language deletion confirmation screen.
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*/
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function language_admin_delete_form($form, &$form_state, $language) {
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$langcode = $language->langcode;
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if (language_default()->langcode == $langcode) {
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drupal_set_message(t('The default language cannot be deleted.'));
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drupal_goto('admin/config/regional/language');
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}
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// For other languages, warn user that data loss is ahead.
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$languages = language_list();
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if (!isset($languages[$langcode])) {
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drupal_not_found();
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drupal_exit();
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}
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else {
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$form['langcode'] = array('#type' => 'value', '#value' => $langcode);
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return confirm_form($form, t('Are you sure you want to delete the language %language?', array('%language' => $languages[$langcode]->name)), 'admin/config/regional/language', t('Deleting a language will remove all interface translations associated with it, and posts in this language will be set to be language neutral. This action cannot be undone.'), t('Delete'), t('Cancel'));
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}
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}
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/**
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* Process language deletion submissions.
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*/
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function language_admin_delete_form_submit($form, &$form_state) {
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$langcode = $form_state['values']['langcode'];
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$languages = language_list();
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$language = $languages[$langcode];
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$success = language_delete($langcode);
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if ($success) {
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$t_args = array('%language' => $language->name, '%langcode' => $language->langcode);
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drupal_set_message(t('The %language (%langcode) language has been removed.', $t_args));
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}
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$form_state['redirect'] = 'admin/config/regional/language';
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}
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/**
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* Prepare a language code list for unused predefined languages.
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*/
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function language_admin_predefined_list() {
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include_once DRUPAL_ROOT . '/core/includes/standard.inc';
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$languages = language_list();
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$predefined = standard_language_list();
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foreach ($predefined as $key => $value) {
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if (isset($languages[$key])) {
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unset($predefined[$key]);
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continue;
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}
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$predefined[$key] = t($value[0]);
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}
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asort($predefined);
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return $predefined;
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}
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