translate.class.php

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<?php
/* Copyright (C) 2001      Eric Seigne         <erics@rycks.com>
 * Copyright (C) 2004-2015 Destailleur Laurent <eldy@users.sourceforge.net>
 * Copyright (C) 2005-2010 Regis Houssin       <regis.houssin@inodbox.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */
 
class Translate
{
  public $dir; // Directories that contains /langs subdirectory
 
  public $defaultlang; // Current language for current user
  public $shortlang; // Short language for current user
  public $charset_output = 'UTF-8'; // Codage used by "trans" method outputs
 
  public $tab_translate = array(); // Array of all translations key=>value
  private $_tab_loaded = array(); // Array to store result after loading each language file
 
  public $cache_labels = array(); // Cache for labels return by getLabelFromKey method
  public $cache_currencies = array(); // Cache to store currency symbols
  private $cache_currencies_all_loaded = false;
  public $origlang;
  public $error;
  public $errors = array();
 
 
  public function __construct($dir, $conf)
  {
    if (!empty($conf->file->character_set_client)) {
      $this->charset_output = $conf->file->character_set_client; // If charset output is forced
    }
    if ($dir) {
      $this->dir = array($dir);
    } else {
      $this->dir = $conf->file->dol_document_root;
    }
  }
 
 
  public function setDefaultLang($srclang = 'en_US')
  {
    global $conf;
 
    //dol_syslog(get_class($this)."::setDefaultLang srclang=".$srclang,LOG_DEBUG);
 
    // If a module ask to force a priority on langs directories (to use its own lang files)
    if (!empty($conf->global->MAIN_FORCELANGDIR)) {
      $more = array();
      $i = 0;
      foreach ($conf->file->dol_document_root as $dir) {
        $newdir = $dir . $conf->global->MAIN_FORCELANGDIR; // For example $conf->global->MAIN_FORCELANGDIR is '/mymodule' meaning we search files into '/mymodule/langs/xx_XX'
        if (!in_array($newdir, $this->dir)) {
          $more['module_' . $i] = $newdir;
          $i++; // We add the forced dir into the array $more. Just after, we add entries into $more to list of lang dir $this->dir.
        }
      }
      $this->dir = array_merge($more, $this->dir); // Forced dir ($more) are before standard dirs ($this->dir)
    }
 
    $this->origlang = $srclang;
 
    if (empty($srclang) || $srclang == 'auto') {
      // $_SERVER['HTTP_ACCEPT_LANGUAGE'] can be 'fr-FR,fr;q=0.9,en-US;q=0.8,en;q=0.7,it;q=0.6' but can contains also malicious content
      $langpref = empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? '' : $_SERVER['HTTP_ACCEPT_LANGUAGE'];
      $langpref = preg_replace("/;([^,]*)/i", "", $langpref); // Remove the 'q=x.y,' part
      $langpref = str_replace("-", "_", $langpref);
      $langlist = preg_split("/[;,]/", $langpref);
      $codetouse = preg_replace('/[^_a-zA-Z]/', '', $langlist[0]);
    } else {
      $codetouse = $srclang;
    }
 
    // We redefine $srclang
    $langpart = explode("_", $codetouse);
    //print "Short code before _ : ".$langpart[0].' / Short code after _ : '.$langpart[1].'<br>';
    if (!empty($langpart[1])) { // If it's for a codetouse that is a long code xx_YY
      // Array force long code from first part, even if long code is defined
      $longforshort = array('ar' => 'ar_SA');
      $longforshortexcep = array('ar_EG');
      if (isset($longforshort[strtolower($langpart[0])]) && !in_array($codetouse, $longforshortexcep)) {
        $srclang = $longforshort[strtolower($langpart[0])];
      } elseif (!is_numeric($langpart[1])) {    // Second part YY may be a numeric with some Chrome browser
        $srclang = strtolower($langpart[0]) . "_" . strtoupper($langpart[1]);
        $longforlong = array('no_nb' => 'nb_NO');
        if (isset($longforlong[strtolower($srclang)])) {
          $srclang = $longforlong[strtolower($srclang)];
        }
      } else {
        $srclang = strtolower($langpart[0]) . "_" . strtoupper($langpart[0]);
      }
    } else {            // If it's for a codetouse that is a short code xx
      // Array to convert short lang code into long code.
      $longforshort = array(
        'am' => 'am_ET', 'ar' => 'ar_SA', 'bn' => 'bn_DB', 'el' => 'el_GR', 'ca' => 'ca_ES', 'cs' => 'cs_CZ', 'en' => 'en_US', 'fa' => 'fa_IR',
        'gl' => 'gl_ES', 'he' => 'he_IL', 'hi' => 'hi_IN', 'ja' => 'ja_JP',
        'ka' => 'ka_GE', 'km' => 'km_KH', 'kn' => 'kn_IN', 'ko' => 'ko_KR', 'lo' => 'lo_LA', 'nb' => 'nb_NO', 'no' => 'nb_NO', 'ne' => 'ne_NP',
        'sl' => 'sl_SI', 'sq' => 'sq_AL', 'sr' => 'sr_RS', 'sv' => 'sv_SE', 'uk' => 'uk_UA', 'vi' => 'vi_VN', 'zh' => 'zh_CN'
      );
      if (isset($longforshort[strtolower($langpart[0])])) {
        $srclang = $longforshort[strtolower($langpart[0])];
      } elseif (!empty($langpart[0])) {
        $srclang = strtolower($langpart[0]) . "_" . strtoupper($langpart[0]);
      } else {
        $srclang = 'en_US';
      }
    }
 
    $this->defaultlang = $srclang;
    $this->shortlang = substr($srclang, 0, 2);
    //print 'this->defaultlang='.$this->defaultlang;
  }
 
 
  public function getDefaultLang($mode = 0)
  {
    if (empty($mode)) {
      return $this->defaultlang;
    } else {
      return substr($this->defaultlang, 0, 2);
    }
  }
 
 
  public function loadLangs($domains)
  {
    $loaded = 0;
    foreach ($domains as $domain) {
      $result = $this->load($domain);
      if ($result > 0) {
        $loaded = $result;
      } elseif ($result < 0) {
        return $result;
      }
    }
    return $loaded;
  }
 
  public function load($domain, $alt = 0, $stopafterdirection = 0, $forcelangdir = '', $loadfromfileonly = 0, $forceloadifalreadynotfound = 0)
  {
    global $conf, $db;
 
    //dol_syslog("Translate::Load Start domain=".$domain." alt=".$alt." forcelangdir=".$forcelangdir." this->defaultlang=".$this->defaultlang);
 
    // Check parameters
    if (empty($domain)) {
      dol_print_error('', get_class($this) . "::Load ErrorWrongParameters");
      return -1;
    }
    if ($this->defaultlang === 'none_NONE') {
      return 0; // Special language code to not translate keys
    }
 
 
    // Load $this->tab_translate[] from database
    if (empty($loadfromfileonly) && count($this->tab_translate) == 0) {
      $this->loadFromDatabase($db); // No translation was never loaded yet, so we load database.
    }
 
 
    $newdomain = $domain;
    $modulename = '';
 
    // Search if a module directory name is provided into lang file name
    $regs = array();
    if (preg_match('/^([^@]+)@([^@]+)$/i', $domain, $regs)) {
      $newdomain = $regs[1];
      $modulename = $regs[2];
    }
 
    // Check cache
    if (
      !empty($this->_tab_loaded[$newdomain])
      && ($this->_tab_loaded[$newdomain] != 2 || empty($forceloadifalreadynotfound))
    ) { // File already loaded and found and not forced for this domain
      //dol_syslog("Translate::Load already loaded for newdomain=".$newdomain);
      return 0;
    }
 
    $fileread = 0;
    $langofdir = (empty($forcelangdir) ? $this->defaultlang : $forcelangdir);
 
    // Redefine alt
    $langarray = explode('_', $langofdir);
    if ($alt < 1 && isset($langarray[1]) && (strtolower($langarray[0]) == strtolower($langarray[1]) || in_array(strtolower($langofdir), array('el_gr')))) {
      $alt = 1;
    }
    if ($alt < 2 && strtolower($langofdir) == 'en_us') {
      $alt = 2;
    }
 
    if (empty($langofdir)) {  // This may occurs when load is called without setting the language and without providing a value for forcelangdir
      dol_syslog("Error: " . get_class($this) . "::load was called for domain=" . $domain . " but language was not set yet with langs->setDefaultLang(). Nothing will be loaded.", LOG_WARNING);
      return -1;
    }
 
    foreach ($this->dir as $searchdir) {
      // Directory of translation files
      $file_lang = $searchdir . ($modulename ? '/' . $modulename : '') . "/langs/" . $langofdir . "/" . $newdomain . ".lang";
      $file_lang_osencoded = dol_osencode($file_lang);
 
      $filelangexists = is_file($file_lang_osencoded);
 
      //dol_syslog(get_class($this).'::Load Try to read for alt='.$alt.' langofdir='.$langofdir.' domain='.$domain.' newdomain='.$newdomain.' modulename='.$modulename.' file_lang='.$file_lang." => filelangexists=".$filelangexists);
      //print 'Try to read for alt='.$alt.' langofdir='.$langofdir.' domain='.$domain.' newdomain='.$newdomain.' modulename='.$modulename.' this->_tab_loaded[newdomain]='.$this->_tab_loaded[$newdomain].' file_lang='.$file_lang." => filelangexists=".$filelangexists."\n";
 
      if ($filelangexists) {
        // TODO Move cache read out of loop on dirs or at least filelangexists
        $found = false;
 
        // Enable caching of lang file in memory (not by default)
        $usecachekey = '';
        // Using a memcached server
        if (isModEnabled('memcached') && !empty($conf->global->MEMCACHED_SERVER)) {
          $usecachekey = $newdomain . '_' . $langofdir . '_' . md5($file_lang); // Should not contains special chars
        } elseif (isset($conf->global->MAIN_OPTIMIZE_SPEED) && ($conf->global->MAIN_OPTIMIZE_SPEED & 0x02)) {
          // Using cache with shmop. Speed gain: 40ms - Memory overusage: 200ko (Size of session cache file)
          $usecachekey = $newdomain;
        }
 
        if ($usecachekey) {
          //dol_syslog('Translate::Load we will cache result into usecachekey '.$usecachekey);
          //global $aaa; $aaa+=1;
          //print $aaa." ".$usecachekey."\n";
          require_once DOL_DOCUMENT_ROOT . '/core/lib/memory.lib.php';
          $tmparray = dol_getcache($usecachekey);
          if (is_array($tmparray) && count($tmparray)) {
            $this->tab_translate += $tmparray; // Faster than array_merge($tmparray,$this->tab_translate). Note: If a value already exists into tab_translate, value into tmparaay is not added.
            //print $newdomain."\n";
            //var_dump($this->tab_translate);
            if ($alt == 2) {
              $fileread = 1;
            }
            $found = true; // Found in dolibarr PHP cache
          }
        }
 
        if (!$found) {
          if ($fp = @fopen($file_lang, "rt")) {
            if ($usecachekey) {
              $tabtranslatedomain = array(); // To save lang content in cache
            }
 
            while ($line = fscanf($fp, "%[^= ]%*[ =]%[^\n\r]")) {
              if (isset($line[1])) {
                list($key, $value) = $line;
                //if ($domain == 'orders') print "Domain=$domain, found a string for $tab[0] with value $tab[1]. Currently in cache ".$this->tab_translate[$key]."<br>";
                //if ($key == 'Order') print "Domain=$domain, found a string for key=$key=$tab[0] with value $tab[1]. Currently in cache ".$this->tab_translate[$key]."<br>";
                if (empty($this->tab_translate[$key])) { // If translation was already found, we must not continue, even if MAIN_FORCELANGDIR is set (MAIN_FORCELANGDIR is to replace lang dir, not to overwrite entries)
                  if ($key == 'DIRECTION') { // This is to declare direction of language
                    if ($alt < 2 || empty($this->tab_translate[$key])) { // We load direction only for primary files or if not yet loaded
                      $this->tab_translate[$key] = $value;
                      if ($stopafterdirection) {
                        break; // We do not save tab if we stop after DIRECTION
                      } elseif ($usecachekey) {
                        $tabtranslatedomain[$key] = $value;
                      }
                    }
                  } elseif ($key[0] == '#') {
                    continue;
                  } else {
                    // Convert some strings: Parse and render carriage returns. Also, change '\\s' into '\s' because transifex sync pull the string '\s' into string '\\s'
                    $this->tab_translate[$key] = str_replace(array('\\n', '\\\\s'), array("\n", '\s'), $value);
                    if ($usecachekey) {
                      $tabtranslatedomain[$key] = $value;
                    } // To save lang content in cache
                  }
                }
              }
            }
            fclose($fp);
            $fileread = 1;
 
            // TODO Move cache write out of loop on dirs
            // To save lang content for usecachekey into cache
            if ($usecachekey && count($tabtranslatedomain)) {
              $ressetcache = dol_setcache($usecachekey, $tabtranslatedomain);
              if ($ressetcache < 0) {
                $error = 'Failed to set cache for usecachekey=' . $usecachekey . ' result=' . $ressetcache;
                dol_syslog($error, LOG_ERR);
              }
            }
 
            if (empty($conf->global->MAIN_FORCELANGDIR)) {
              break; // Break loop on each root dir. If a module has forced dir, we do not stop loop.
            }
          }
        }
      }
    }
 
    // Now we complete with next file (fr_CA->fr_FR, es_MX->ex_ES, ...)
    if ($alt == 0) {
      // This function MUST NOT contains call to syslog
      //dol_syslog("Translate::Load loading alternate translation file (to complete ".$this->defaultlang."/".$newdomain.".lang file)", LOG_DEBUG);
      $langofdir = strtolower($langarray[0]) . '_' . strtoupper($langarray[0]);
      if ($langofdir == 'el_EL') {
        $langofdir = 'el_GR'; // main parent for el_CY is not 'el_EL' but 'el_GR'
      }
      if ($langofdir == 'ar_AR') {
        $langofdir = 'ar_SA'; // main parent for ar_EG is not 'ar_AR' but 'ar_SA'
      }
      $this->load($domain, $alt + 1, $stopafterdirection, $langofdir);
    }
 
    // Now we complete with reference file (en_US)
    if ($alt == 1) {
      // This function MUST NOT contains call to syslog
      //dol_syslog("Translate::Load loading alternate translation file (to complete ".$this->defaultlang."/".$newdomain.".lang file)", LOG_DEBUG);
      $langofdir = 'en_US';
      $this->load($domain, $alt + 1, $stopafterdirection, $langofdir);
    }
 
    // We are in the pass of the reference file. No more files to scan to complete.
    if ($alt == 2) {
      if ($fileread) {
        $this->_tab_loaded[$newdomain] = 1; // Set domain file as found so loaded
      }
 
      if (empty($this->_tab_loaded[$newdomain])) {
        $this->_tab_loaded[$newdomain] = 2; // Set this file as not found
      }
    }
 
    // This part is deprecated and replaced with table llx_overwrite_trans
    // Kept for backward compatibility.
    if (empty($loadfromfileonly)) {
      $overwritekey = 'MAIN_OVERWRITE_TRANS_' . $this->defaultlang;
      if (!empty($conf->global->$overwritekey)) {    // Overwrite translation with key1:newstring1,key2:newstring2
        // Overwrite translation with param MAIN_OVERWRITE_TRANS_xx_XX
        $tmparray = explode(',', $conf->global->$overwritekey);
        foreach ($tmparray as $tmp) {
          $tmparray2 = explode(':', $tmp);
          if (!empty($tmparray2[1])) {
            $this->tab_translate[$tmparray2[0]] = $tmparray2[1];
          }
        }
      }
    }
 
    // Check to be sure that SeparatorDecimal differs from SeparatorThousand
    if (
      !empty($this->tab_translate["SeparatorDecimal"]) && !empty($this->tab_translate["SeparatorThousand"])
      && $this->tab_translate["SeparatorDecimal"] == $this->tab_translate["SeparatorThousand"]
    ) {
      $this->tab_translate["SeparatorThousand"] = '';
    }
 
    return 1;
  }
 
  public function loadFromDatabase($db)
  {
    global $conf;
 
    $domain = 'database';
 
    // Check parameters
    if (empty($db)) {
      return 0; // Database handler can't be used
    }
 
    //dol_syslog("Translate::Load Start domain=".$domain." alt=".$alt." forcelangdir=".$forcelangdir." this->defaultlang=".$this->defaultlang);
 
    $newdomain = $domain;
 
    // Check cache
    if (!empty($this->_tab_loaded[$newdomain])) { // File already loaded for this domain 'database'
      //dol_syslog("Translate::Load already loaded for newdomain=".$newdomain);
      return 0;
    }
 
    $this->_tab_loaded[$newdomain] = 1; // We want to be sure this function is called once only for domain 'database'
 
    $fileread = 0;
    $langofdir = $this->defaultlang;
 
    if (empty($langofdir)) {  // This may occurs when load is called without setting the language and without providing a value for forcelangdir
      dol_syslog("Error: " . get_class($this) . "::loadFromDatabase was called but language was not set yet with langs->setDefaultLang(). Nothing will be loaded.", LOG_WARNING);
      return -1;
    }
 
    // TODO Move cache read out of loop on dirs or at least filelangexists
    $found = false;
 
    // Enable caching of lang file in memory (not by default)
    $usecachekey = '';
    // Using a memcached server
    if (isModEnabled('memcached') && !empty($conf->global->MEMCACHED_SERVER)) {
      $usecachekey = $newdomain . '_' . $langofdir; // Should not contains special chars
    } elseif (isset($conf->global->MAIN_OPTIMIZE_SPEED) && ($conf->global->MAIN_OPTIMIZE_SPEED & 0x02)) {
      // Using cache with shmop. Speed gain: 40ms - Memory overusage: 200ko (Size of session cache file)
      $usecachekey = $newdomain;
    }
 
    if ($usecachekey) {
      //dol_syslog('Translate::Load we will cache result into usecachekey '.$usecachekey);
      //global $aaa; $aaa+=1;
      //print $aaa." ".$usecachekey."\n";
      require_once DOL_DOCUMENT_ROOT . '/core/lib/memory.lib.php';
      $tmparray = dol_getcache($usecachekey);
      if (is_array($tmparray) && count($tmparray)) {
        $this->tab_translate += $tmparray; // Faster than array_merge($tmparray,$this->tab_translate). Note: If a value already exists into tab_translate, value into tmparaay is not added.
        //print $newdomain."\n";
        //var_dump($this->tab_translate);
        $fileread = 1;
        $found = true; // Found in dolibarr PHP cache
      }
    }
 
    if (!$found && !empty($conf->global->MAIN_ENABLE_OVERWRITE_TRANSLATION)) {
      // Overwrite translation with database read
      $sql = "SELECT transkey, transvalue FROM " . $db->prefix() . "overwrite_trans where lang='" . $db->escape($this->defaultlang) . "' OR lang IS NULL";
      $sql .= " AND entity IN (0, " . getEntity('overwrite_trans') . ")";
      $sql .= $db->order("lang", "DESC");
      $resql = $db->query($sql);
 
      if ($resql) {
        $num = $db->num_rows($resql);
        if ($num) {
          if ($usecachekey) {
            $tabtranslatedomain = array(); // To save lang content in cache
          }
 
          $i = 0;
          while ($i < $num) { // Ex: Need 225ms for all fgets on all lang file for Third party page. Same speed than file_get_contents
            $obj = $db->fetch_object($resql);
 
            $key = $obj->transkey;
            $value = $obj->transvalue;
 
            //print "Domain=$domain, found a string for $tab[0] with value $tab[1]<br>";
            if (empty($this->tab_translate[$key])) {    // If translation was already found, we must not continue, even if MAIN_FORCELANGDIR is set (MAIN_FORCELANGDIR is to replace lang dir, not to overwrite entries)
              // Convert some strings: Parse and render carriage returns. Also, change '\\s' int '\s' because transifex sync pull the string '\s' into string '\\s'
              $this->tab_translate[$key] = str_replace(array('\\n', '\\\\s'), array("\n", '\s'), $value);
 
              if ($usecachekey) {
                $tabtranslatedomain[$key] = $value; // To save lang content in cache
              }
            }
 
            $i++;
          }
 
          $fileread = 1;
 
          // TODO Move cache write out of loop on dirs
          // To save lang content for usecachekey into cache
          if ($usecachekey && count($tabtranslatedomain)) {
            $ressetcache = dol_setcache($usecachekey, $tabtranslatedomain);
            if ($ressetcache < 0) {
              $error = 'Failed to set cache for usecachekey=' . $usecachekey . ' result=' . $ressetcache;
              dol_syslog($error, LOG_ERR);
            }
          }
        }
      } else {
        dol_print_error($db);
      }
    }
 
    if ($fileread) {
      $this->_tab_loaded[$newdomain] = 1; // Set domain file as loaded
    }
 
    if (empty($this->_tab_loaded[$newdomain])) {
      $this->_tab_loaded[$newdomain] = 2; // Mark this case as not found (no lines found for language)
    }
 
    return 1;
  }
 
  public function isLoaded($domain)
  {
    return $this->_tab_loaded[$domain];
  }
 
  private function getTradFromKey($key)
  {
    global $conf, $db;
 
    if (!is_string($key)) {
      //xdebug_print_function_stack('ErrorBadValueForParamNotAString');
      return 'ErrorBadValueForParamNotAString'; // Avoid multiple errors with code not using function correctly.
    }
 
    $newstr = $key;
    $reg = array();
    if (preg_match('/^Civility([0-9A-Z]+)$/i', $key, $reg)) {
      $newstr = $this->getLabelFromKey($db, $reg[1], 'c_civility', 'code', 'label');
    } elseif (preg_match('/^Currency([A-Z][A-Z][A-Z])$/i', $key, $reg)) {
      $newstr = $this->getLabelFromKey($db, $reg[1], 'c_currencies', 'code_iso', 'label');
    } elseif (preg_match('/^SendingMethod([0-9A-Z]+)$/i', $key, $reg)) {
      $newstr = $this->getLabelFromKey($db, $reg[1], 'c_shipment_mode', 'code', 'libelle');
    } elseif (preg_match('/^PaymentType(?:Short)?([0-9A-Z]+)$/i', $key, $reg)) {
      $newstr = $this->getLabelFromKey($db, $reg[1], 'c_paiement', 'code', 'libelle', '', 1);
    } elseif (preg_match('/^OppStatus([0-9A-Z]+)$/i', $key, $reg)) {
      $newstr = $this->getLabelFromKey($db, $reg[1], 'c_lead_status', 'code', 'label');
    } elseif (preg_match('/^OrderSource([0-9A-Z]+)$/i', $key, $reg)) {
      // TODO OrderSourceX must be replaced with content of table llx_c_input_reason or llx_c_input_method
      //$newstr=$this->getLabelFromKey($db,$reg[1],'llx_c_input_reason','code','label');
    }
 
    /* Disabled. There is too many cases where translation of $newstr is not defined is normal (like when output with setEventMessage an already translated string)
    if (getDolGlobalInt('MAIN_FEATURES_LEVEL') >= 2)
    {
      dol_syslog(__METHOD__." MAIN_FEATURES_LEVEL=DEVELOP: missing translation for key '".$newstr."' in ".$_SERVER["PHP_SELF"], LOG_DEBUG);
    }*/
 
    return $newstr;
  }
 
 
  public function trans($key, $param1 = '', $param2 = '', $param3 = '', $param4 = '', $maxsize = 0)
  {
    global $conf;
 
    if (!empty($this->tab_translate[$key])) { // Translation is available
      $str = $this->tab_translate[$key];
 
      // Make some string replacement after translation
      $replacekey = 'MAIN_REPLACE_TRANS_' . $this->defaultlang;
      if (!empty($conf->global->$replacekey)) {    // Replacement translation variable with string1:newstring1;string2:newstring2
        $tmparray = explode(';', $conf->global->$replacekey);
        foreach ($tmparray as $tmp) {
          $tmparray2 = explode(':', $tmp);
          $str = preg_replace('/' . preg_quote($tmparray2[0]) . '/', $tmparray2[1], $str);
        }
      }
 
      // We replace some HTML tags by __xx__ to avoid having them encoded by htmlentities because
      // we want to keep '"' '<b>' '</b>' '<strong' '</strong>' '<a ' '</a>' '<br>' '< ' '<span' '</span>' that are reliable HTML tags inside translation strings.
      $str = str_replace(
        array('"', '<b>', '</b>', '<u>', '</u>', '<i', '</i>', '<center>', '</center>', '<strong>', '</strong>', '<a ', '</a>', '<br>', '<span', '</span>', '< ', '>'), // We accept '< ' but not '<'. We can accept however '>'
        array('__quot__', '__tagb__', '__tagbend__', '__tagu__', '__taguend__', '__tagi__', '__tagiend__', '__tagcenter__', '__tagcenterend__', '__tagb__', '__tagbend__', '__taga__', '__tagaend__', '__tagbr__', '__tagspan__', '__tagspanend__', '__ltspace__', '__gt__'),
        $str
      );
 
      if (strpos($key, 'Format') !== 0) {
        try {
          $str = sprintf($str, $param1, $param2, $param3, $param4); // Replace %s and %d except for FormatXXX strings.
        } catch (Exception $e) {
          // No exception managed
        }
      }
 
      // Crypt string into HTML
      $str = htmlentities($str, ENT_COMPAT, $this->charset_output); // Do not convert simple quotes in translation (strings in html are embraced by "). Use dol_escape_htmltag around text in HTML content
 
      // Restore reliable HTML tags into original translation string
      $str = str_replace(
        array('__quot__', '__tagb__', '__tagbend__', '__tagu__', '__taguend__', '__tagi__', '__tagiend__', '__tagcenter__', '__tagcenterend__', '__taga__', '__tagaend__', '__tagbr__', '__tagspan__', '__tagspanend__', '__ltspace__', '__gt__'),
        array('"', '<b>', '</b>', '<u>', '</u>', '<i', '</i>', '<center>', '</center>', '<a ', '</a>', '<br>', '<span', '</span>', '< ', '>'),
        $str
      );
 
      if ($maxsize) {
        $str = dol_trunc($str, $maxsize);
      }
 
      return $str;
    } else { // Translation is not available
      //if ($key[0] == '$') { return dol_eval($key, 1, 1, '1'); }
      return $this->getTradFromKey($key);
    }
  }
 
 
  public function transnoentities($key, $param1 = '', $param2 = '', $param3 = '', $param4 = '', $param5 = '')
  {
    return $this->convToOutputCharset($this->transnoentitiesnoconv($key, $param1, $param2, $param3, $param4, $param5));
  }
 
 
  public function transnoentitiesnoconv($key, $param1 = '', $param2 = '', $param3 = '', $param4 = '', $param5 = '')
  {
    global $conf;
 
    if (!empty($this->tab_translate[$key])) { // Translation is available
      $str = $this->tab_translate[$key];
 
      // Make some string replacement after translation
      $replacekey = 'MAIN_REPLACE_TRANS_' . $this->defaultlang;
      if (!empty($conf->global->$replacekey)) {    // Replacement translation variable with string1:newstring1;string2:newstring2
        $tmparray = explode(';', $conf->global->$replacekey);
        foreach ($tmparray as $tmp) {
          $tmparray2 = explode(':', $tmp);
          $str = preg_replace('/' . preg_quote($tmparray2[0]) . '/', $tmparray2[1], $str);
        }
      }
 
      if (!preg_match('/^Format/', $key)) {
        //print $str;
        $str = sprintf($str, $param1, $param2, $param3, $param4, $param5); // Replace %s and %d except for FormatXXX strings.
      }
 
      return $str;
    } else {
      /*if ($key[0] == '$') {
        return dol_eval($key, 1, 1, '1');
      }*/
      return $this->getTradFromKey($key);
    }
  }
 
 
  public function transcountry($str, $countrycode)
  {
    if (!empty($this->tab_translate["$str$countrycode"])) {
      return $this->trans("$str$countrycode");
    } else {
      return $this->trans($str);
    }
  }
 
 
  public function transcountrynoentities($str, $countrycode)
  {
    if (!empty($this->tab_translate["$str$countrycode"])) {
      return $this->transnoentities("$str$countrycode");
    } else {
      return $this->transnoentities($str);
    }
  }
 
 
  public function convToOutputCharset($str, $pagecodefrom = 'UTF-8')
  {
    if ($pagecodefrom == 'ISO-8859-1' && $this->charset_output == 'UTF-8') {
      $str = utf8_encode($str);
    }
    if ($pagecodefrom == 'UTF-8' && $this->charset_output == 'ISO-8859-1') {
      $str = utf8_decode(str_replace('€', chr(128), $str));
      // TODO Replace with iconv("UTF-8", "ISO-8859-1", str_replace('€', chr(128), $str)); ?
    }
    return $str;
  }
 
 
  // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
  public function get_available_languages($langdir = DOL_DOCUMENT_ROOT, $maxlength = 0, $usecode = 0, $mainlangonly = 0)
  {
    // phpcs:enable
    global $conf;
 
    $this->load("languages");
 
    // We scan directory langs to detect available languages
    $handle = opendir($langdir . "/langs");
    $langs_available = array();
    while ($dir = trim(readdir($handle))) {
      $regs = array();
      if (preg_match('/^([a-z]+)_([A-Z]+)/i', $dir, $regs)) {
        // We must keep only main languages
        if ($mainlangonly) {
          $arrayofspecialmainlanguages = array(
            'en' => 'en_US',
            'am' => 'am_ET',
            'ar' => 'ar_SA',
            'bn' => 'bn_DB',
            'bs' => 'bs_BA',
            'ca' => 'ca_ES',
            'cs' => 'cs_CZ',
            'da' => 'da_DK',
            'et' => 'et_EE',
            'el' => 'el_GR',
            'eu' => 'eu_ES',
            'fa' => 'fa_IR',
            'he' => 'he_IL',
            'ka' => 'ka_GE',
            'km' => 'km_KH',
            'kn' => 'kn_IN',
            'ko' => 'ko_KR',
            'ja' => 'ja_JP',
            'lo' => 'lo_LA',
            'nb' => 'nb_NO',
            'sq' => 'sq_AL',
            'sr' => 'sr_RS',
            'sv' => 'sv_SE',
            'sl' => 'sl_SI',
            'uk' => 'uk_UA',
            'vi' => 'vi_VN',
            'zh' => 'zh_CN'
          );
          if (strtolower($regs[1]) != strtolower($regs[2]) && !in_array($dir, $arrayofspecialmainlanguages)) {
            continue;
          }
        }
        // We must keep only languages into MAIN_LANGUAGES_ALLOWED
        if (!empty($conf->global->MAIN_LANGUAGES_ALLOWED) && !in_array($dir, explode(',', $conf->global->MAIN_LANGUAGES_ALLOWED))) {
          continue;
        }
 
        if ($usecode == 2) {
          $langs_available[$dir] = $dir;
        }
 
        if ($usecode == 1 || !empty($conf->global->MAIN_SHOW_LANGUAGE_CODE)) {
          $langs_available[$dir] = $dir . ': ' . dol_trunc($this->trans('Language_' . $dir), $maxlength);
        } else {
          $langs_available[$dir] = $this->trans('Language_' . $dir);
        }
        if ($mainlangonly) {
          $langs_available[$dir] = str_replace(' (United States)', '', $langs_available[$dir]);
        }
      }
    }
    return $langs_available;
  }
 
 
  // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
  public function file_exists($filename, $searchalt = 0)
  {
    // phpcs:enable
    // Test si fichier dans repertoire de la langue
    foreach ($this->dir as $searchdir) {
      if (is_readable(dol_osencode($searchdir . "/langs/" . $this->defaultlang . "/" . $filename))) {
        return true;
      }
 
      if ($searchalt) {
        // Test si fichier dans repertoire de la langue alternative
        if ($this->defaultlang != "en_US") {
          $filenamealt = $searchdir . "/langs/en_US/" . $filename;
        }
        //else $filenamealt = $searchdir."/langs/fr_FR/".$filename;
        if (is_readable(dol_osencode($filenamealt))) {
          return true;
        }
      }
    }
 
    return false;
  }
 
 
  public function getLabelFromNumber($number, $isamount = '')
  {
    global $conf;
 
    $newnumber = $number;
 
    $dirsubstitutions = array_merge(array(), $conf->modules_parts['substitutions']);
    foreach ($dirsubstitutions as $reldir) {
      $dir = dol_buildpath($reldir, 0);
      $newdir = dol_osencode($dir);
 
      // Check if directory exists
      if (!is_dir($newdir)) {
        continue; // We must not use dol_is_dir here, function may not be loaded
      }
 
      $fonc = 'numberwords';
      if (file_exists($newdir . '/functions_' . $fonc . '.lib.php')) {
        include_once $newdir . '/functions_' . $fonc . '.lib.php';
        if (function_exists('numberwords_getLabelFromNumber')) {
          $newnumber = numberwords_getLabelFromNumber($this, $number, $isamount);
          break;
        }
      }
    }
 
    return $newnumber;
  }
 
 
  public function getLabelFromKey($db, $key, $tablename, $fieldkey, $fieldlabel, $keyforselect = '', $filteronentity = 0)
  {
    // If key empty
    if ($key == '') {
      return '';
    }
    // Test should be useless because the 3 variables are never set from user input but we keep it in case of.
    if (preg_match('/[^0-9A-Z_]/i', $tablename) || preg_match('/[^0-9A-Z_]/i', $fieldkey) || preg_match('/[^0-9A-Z_]/i', $fieldlabel)) {
      $this->error = 'Bad value for parameter tablename, fieldkey or fieldlabel';
      return -1;
    }
 
    //print 'param: '.$key.'-'.$keydatabase.'-'.$this->trans($key); exit;
 
    // Check if a translation is available (Note: this can call getTradFromKey that can call getLabelFromKey)
    $tmp = $this->transnoentitiesnoconv($key);
    if ($tmp != $key && $tmp != 'ErrorBadValueForParamNotAString') {
      return $tmp; // Found in language array
    }
 
    // Check in cache
    if (isset($this->cache_labels[$tablename][$key])) { // Can be defined to 0 or ''
      return $this->cache_labels[$tablename][$key]; // Found in cache
    }
 
    // Not found in loaded language file nor in cache. So we will take the label into database.
    $sql = "SELECT " . $fieldlabel . " as label";
    $sql .= " FROM " . $db->prefix() . $tablename;
    $sql .= " WHERE " . $fieldkey . " = '" . $db->escape($keyforselect ? $keyforselect : $key) . "'";
    if ($filteronentity) {
      $sql .= " AND entity IN (" . getEntity($tablename) . ')';
    }
    dol_syslog(get_class($this) . '::getLabelFromKey', LOG_DEBUG);
    $resql = $db->query($sql);
    if ($resql) {
      $obj = $db->fetch_object($resql);
      if ($obj) {
        $this->cache_labels[$tablename][$key] = $obj->label;
      } else {
        $this->cache_labels[$tablename][$key] = $key;
      }
 
      $db->free($resql);
      return $this->cache_labels[$tablename][$key];
    } else {
      $this->error = $db->lasterror();
      return -1;
    }
  }
 
 
  public function getCurrencyAmount($currency_code, $amount)
  {
    $symbol = $this->getCurrencySymbol($currency_code);
 
    if (in_array($currency_code, array('USD'))) {
      return $symbol . $amount;
    } else {
      return $amount . $symbol;
    }
  }
 
  public function getCurrencySymbol($currency_code, $forceloadall = 0)
  {
    $currency_sign = ''; // By default return iso code
 
    if (function_exists("mb_convert_encoding")) {
      $this->loadCacheCurrencies($forceloadall ? '' : $currency_code);
 
      if (isset($this->cache_currencies[$currency_code]) && !empty($this->cache_currencies[$currency_code]['unicode']) && is_array($this->cache_currencies[$currency_code]['unicode'])) {
        foreach ($this->cache_currencies[$currency_code]['unicode'] as $unicode) {
          $currency_sign .= mb_convert_encoding("&#" . $unicode . ";", "UTF-8", 'HTML-ENTITIES');
        }
      }
    }
 
    return ($currency_sign ? $currency_sign : $currency_code);
  }
 
  public function loadCacheCurrencies($currency_code)
  {
    global $db;
 
    if ($this->cache_currencies_all_loaded) {
      return 0; // Cache already loaded for all
    }
    if (!empty($currency_code) && isset($this->cache_currencies[$currency_code])) {
      return 0; // Cache already loaded for the currency
    }
 
    $sql = "SELECT code_iso, label, unicode";
    $sql .= " FROM " . $db->prefix() . "c_currencies";
    $sql .= " WHERE active = 1";
    if (!empty($currency_code)) {
      $sql .= " AND code_iso = '" . $db->escape($currency_code) . "'";
    }
    //$sql.= " ORDER BY code_iso ASC"; // Not required, a sort is done later
 
    dol_syslog(get_class($this) . '::loadCacheCurrencies', LOG_DEBUG);
    $resql = $db->query($sql);
    if ($resql) {
      $this->load("dict");
      $label = array();
      if (!empty($currency_code)) {
        foreach ($this->cache_currencies as $key => $val) {
          $label[$key] = $val['label']; // Label in already loaded cache
        }
      }
 
      $num = $db->num_rows($resql);
      $i = 0;
      while ($i < $num) {
        $obj = $db->fetch_object($resql);
        if ($obj) {
          // If a translation exists, we use it lese we use the default label
          $this->cache_currencies[$obj->code_iso]['label'] = ($obj->code_iso && $this->trans("Currency" . $obj->code_iso) != "Currency" . $obj->code_iso ? $this->trans("Currency" . $obj->code_iso) : ($obj->label != '-' ? $obj->label : ''));
          $this->cache_currencies[$obj->code_iso]['unicode'] = (array) json_decode((empty($obj->unicode) ? '' : $obj->unicode), true);
          $label[$obj->code_iso] = $this->cache_currencies[$obj->code_iso]['label'];
        }
        $i++;
      }
      if (empty($currency_code)) {
        $this->cache_currencies_all_loaded = true;
      }
      //print count($label).' '.count($this->cache_currencies);
 
      // Resort cache
      array_multisort($label, SORT_ASC, $this->cache_currencies);
      //var_dump($this->cache_currencies);  $this->cache_currencies is now sorted onto label
      return $num;
    } else {
      dol_print_error($db);
      return -1;
    }
  }
 
  // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
  public function get_translations_for_substitutions()
  {
    // phpcs:enable
    $substitutionarray = array();
 
    foreach ($this->tab_translate as $code => $label) {
      $substitutionarray['lang_' . $code] = $label;
      $substitutionarray['__(' . $code . ')__'] = $label;
    }
 
    return $substitutionarray;
  }
}