materio-base-d7/sites/all/modules/gui/materiobasemod/materio_taxonomy.module

<?php

/**
 * Implements hook_permission().
 */
function materio_taxonomy_permission() {
	$perms = array();

// foreach (taxonomy_get_vocabularies() as $voc) {
// 	dsm($voc, '$voc');
// 	// $perms['access taxonomy term page'] =>  array(
//  //     'title' => t(''),
//  //     'description' => t(''),
//  //   );
// }

	$perms['access taxonomy terms page'] = array(
		'title' => t('access taxonomy terms page'),
		'description' => t(''),
	);
	$perms['access fr2en materio'] = array(
		'title' => t('access fr2en materio'),
		'description' => t(''),
	);

  return $perms;
}

function materio_taxonomy_menu_alter(&$items) {
  $items['taxonomy/term/%taxonomy_term']['access arguments'] = array('access taxonomy terms page');
  $items['taxonomy/term/%taxonomy_term/view']['access arguments'] = array('access taxonomy terms page');
  $items['taxonomy/term/%taxonomy_term/feed']['access arguments'] = array('access taxonomy terms page');
}

/**
 * Implementation of hook_query_term_access_alter().
 *
 * debug de i18n_select_query_term_access_alter()
 * qui filtre les terms par language mm pour les vocabulaires en mode localized.
 * utile pour la recherche avancée de materio_search_api materio_search_api_advanced_search_form()
 *
 *
 * Inutile si i18n_taxonomy module is desactivate
 */
function materio_taxonomy_query_term_access_alter(QueryAlterableInterface $query) {
  // dsm($query, 'materio taxo query');
  $conditions =& $query->conditions();

  # roll over condition first time to determine i18n_voc_mode
  $i18n_voc_mode = 0;
  foreach ($conditions as $condition) {
    if (is_array($condition)) {
      // dsm($condition, 'conditon '.$condition['field']);
      if($condition['field'] == 't.vid'){
        $vid = $condition['value'];
        $i18n_voc_mode = module_exists('i18n_taxonomy') ? i18n_taxonomy_vocabulary_mode($vid) : 0;
        // dsm($i18n_voc_mode, 'i18n_voc_mode');
      }
    }
  }

  # roll over conditions a second time to re-alter/fixe language selection
  # i18n vocabulary mode is 1 for localized terms
  if($i18n_voc_mode == 1){
    foreach ($conditions as $index => $condition) {
      if (is_array($condition)) {
        // dsm($condition, 'conditon '.$condition['field']);
        if($condition['field'] == 't.language' && $i18n_voc_mode == 1){
          $l = array('und');
          $ll = i18n_language_list();
          // dsm($ll, 'list language');
          foreach ($ll as $langcode => $langname) {
            $l[] = $langcode;
          }
          $conditions[$index]['value'] = $l;
        }
      }
    }
  }

}

/**
 * Implements hook_menu().
 */
function materio_taxonomy_menu() {
  $items['admin/structure/taxonomy/fr2en'] = array(
    'title' => 'fr2en taglibres',
		'page callback' => 'drupal_get_form',
    'page arguments' => array('materio_taxonomy_fr2en_form'),
    'access arguments' => array('access fr2en materio'),
		'type' => MENU_NORMAL_ITEM,
		'weight' => 999,
  );
  return $items;
}

function materio_taxonomy_fr2en_form(){
		$form['description'] = array(
		 '#type' => 'markup',
		 '#markup' => t('convert tag libres terms name frome french to english from csv file'),
	 );
	 $form['batch'] = array(
		 '#type' => 'select',
		 '#title' => 'Choose batch',
		 '#options' => array(
			 'fr2en' => t('fr2en'),
			 'en2fr' => t('en2fr'),
		 ),
	 );
	 $form['submit'] = array(
		 '#type' => 'submit',
		 '#value' => 'Go',
	 );

	 return $form;
}

function materio_taxonomy_fr2en_form_submit($form, &$form_state) {
  $function = 'materio_taxonomy_fr2en';

  // Reset counter for debug information.
  $_SESSION['http_request_count'] = 0;

  // Execute the function named batch_example_1 or batch_example_2.
  $batch = $function($form_state['values']['batch']);
  batch_set($batch);
}

function materio_taxonomy_fr2en($op){
	$file = drupal_get_path('module', 'materio_taxonomy')."/assets/taglibres_".$op.".csv";
	$data = array();
	if (($handle = fopen($file, "r")) !== FALSE) {
		while (($line = fgetcsv($handle, 1000, ",")) !== FALSE) {
			$data[$line[0]] = $line[1];
		}
    fclose($handle);
	}else{
		drupal_set_message("fopen csv file failed");
		return;
	}

	// get term list from vocabulary
	$tags = taxonomy_get_tree(4);
	$operations = array();
	foreach ($tags as $tid => $t) {
		if($t->name){
			if(isset($data[$t->name])){
				$operations[] = array(
					'materio_taxonomy_fr2en_batch',
					array(
						$data[$t->name],
						$t
					)
				);
			}
		}
	}

	$batch = array(
		"operations" => $operations,
		"finished" => "materio_taxonomy_fr2en_batch_finished"
	);
	return $batch;
}

function materio_taxonomy_fr2en_batch($name, $t, &$context){
	$oldname = $t->name;
	$t->name = $name;
	taxonomy_term_save($t);
	// $cont= array('term',$t->tid,'name');
	// i18n_string_textgroup('taxonomy')->update_translation($cont, 'fr', $oldname);

	// https://www.drupal.org/project/entity_translation_export_import

	$context['message'][] = $oldname .' -> '. $name;
	$_SESSION['http_request_count']++;
}

function materio_taxonomy_fr2en_batch_finished($success, $results, $operations){
	if($success){
		drupal_set_message('All terms converted');
	}
}