source: trunk/includes/Locale.php@ 618

<?php

class LocaleText 
{
        var $Data;
        var $Code;
        var $Title;

  function __construct()
  {
        $this->Data = array();
        $this->Code = 'en';
        $this->Title = 'English';
  }     
  
        function Load()
        {
        }
        
        function Translate($Text)
        {       
                if(array_key_exists($Text, $this->Data) and ($this->Data[$Text] != ''))
                  return($this->Data[$Text]);
                  else return($Text);
        }       
}

class Locale extends Model
{
        var $Texts;
        var $Dir;
        
        function __construct($System)
        {
                parent::__construct($System);
                $this->Texts = new LocaleText();
        }
        
        function Load($Language)
        {
                $FileName = $this->Dir.'/'.$Language.'.php';
                if(file_exists($FileName)) {
                        include_once($FileName);
                        $ClassName = 'LocaleText'.$Language;                    
                  $this->Texts = new $ClassName();
                } else throw new Exception('Language file '.$FileName.' not found');
                $this->Texts->Load();
        }
        
        function AnalyzeCode($Path)
  {
        // Search for php files
    $FileList = scandir($Path);
    foreach($FileList as $FileName)
    {
        $FullName = $Path.'/'.$FileName;
        if(($FileName == '.') or ($FileName == '..')) ; // Skip virtual items
        else if(substr($FileName, 0, 1) == '.') ; // Skip Linux hidden files
        else if(is_dir($FullName)) $this->AnalyzeCode($FullName);
      else if(file_exists($FullName))
      {
        if(substr($FullName, -4) == '.php') 
        {
                $Content = file_get_contents($FullName);
                // Search occurence of T() function
                while(strpos($Content, 'T(') !== false)
                { 
                        $Previous = strtolower(substr($Content, strpos($Content, 'T(') - 1, 1));
                        $Content = substr($Content, strpos($Content, 'T(') + 2);
                        $Ord = ord($Previous);
                        //echo($Ord.',');
                        if(!(($Ord >= ord('a')) and ($Ord <= ord('z'))))
                        {       
                                // Do for non-alpha previous character                                            
                          $Original = substr($Content, 0, strpos($Content, ')'));
                          $Original2 = '';
                          if((substr($Original, 0, 1) == "'") and (substr($Original, -1, 1) == "'")) 
                            $Original2 = substr($Original, 1, -1);
                          if((substr($Original, 0, 1) == '"') and (substr($Original, -1, 1) == '"')) 
                            $Original2 = substr($Original, 1, -1);                        
                          if($Original2 != '') 
                          {
                                if(!array_key_exists($Original2, $this->Texts->Data))
                                  $this->Texts->Data[$Original2] = '';
                          } 
                        }
                }               
        }          
      }           
    }
  }
  
  function SaveToFile($FileName)
  {
        $Content = '<?php'."\n".
    ''."\n".
    'class LocaleText'.$this->Texts->Code.' extends LocaleText'."\n".
    '{'."\n".
          '  function Load()'."\n".
          '  {'."\n".
          '    $this->Code = \''.$this->Texts->Code.'\';'."\n".
          '    $this->Title = \''.$this->Texts->Title.'\';'."\n".
                '    $this->Data = array('."\n";
                foreach($this->Texts->Data as $Index => $Item)
                {
                        $Content .= "      '".$Index."' => '".$Item."',\n";
                }
                $Content .= '    );'."\n".
          '  }'."\n".
    '}'."\n";
    file_put_contents($FileName, $Content);
  }
  
  function LoadFromDatabase($Database, $LangCode)
  {
        $DbResult = $Database->select('Language', '*', 'Code='.$Database->quote($LangCode));
        if($DbResult->num_rows > 0)
        {
          $Language = $DbResult->fetch_assoc();
        $this->Texts->Data = array();
        $DbResult = $Database->select('Locale', '`Original`, `Translated`', '`Language`='.$Language['Id']);
          while($DbRow = $DbResult->fetch_assoc())
            $this->Texts->Data[$DbRow['Original']] = $DbRow['Translated'];
        }
  }

  function SaveToDatabase(Database $Database, $LangCode)
  {
        $DbResult = $Database->select('Language', '*', 'Code='.$Database->quote($LangCode));
        if($DbResult->num_rows > 0)
        {
          $Language = $DbResult->fetch_assoc();
          $Database->delete('Locale', '`Language`='.$Language['Id']);
          foreach($this->Texts->Data as $Index => $Item)
          $Database->query('INSERT INTO `Locale` (`Language`,`Original`,`Translated`) '.
            'VALUES('.$Language['Id'].','.$Database->quote($Index).','.$Database->quote($Item).')');
        }
  }

  function UpdateToDatabase(Database $Database, $LangCode)
  {
        $DbResult = $Database->select('Language', '*', 'Code='.$Database->quote($LangCode));
        if($DbResult->num_rows > 0)
        {
          $Language = $DbResult->fetch_assoc();
        foreach($this->Texts->Data as $Index => $Item)
      {
            $DbResult = $Database->select('Locale', '*', '(`Original` ='.$Database->quote($Index).') AND (`Language`='.($Language['Id']).')');
          if($DbResult->num_rows > 0)
          $Database->update('Locale', '(`Language`='.($Language['Id']).') AND '.
          '(`Original` ='.$Database->quote($Index).')', array('Translated' => $Item));
          else $Database->insert('Locale', array('Language' => $Language['Id'], 
         'Original' => $Index, 'Translated' => $Item));
      }
        }
  }
}

class LocaleManager extends Model
{
        var $CurrentLocale;
        var $Codes;
        var $Dir;
        
        function __construct($System)
        {
                parent::__construct($System);
                $this->Codes = array('en');
                $this->CurrentLocale = new Locale($System);             
        }
        
        function LoadAvailable()
        {
                $this->Available = array();
        $FileList = scandir($this->Dir);
    foreach($FileList as $FileName)
    {
          if(substr($FileName, -4) == '.php')
          {             
                $Code = substr($FileName, 0, -4);
                $Locale = new Locale($this->System);
                $Locale->Dir = $this->Dir;
                $Locale->Load($Code);
                $this->Available['Code'] = array('Code' => $Code, 'Title' => $Locale->Texts->Title);
          } 
          }
  }
        
        function UpdateAll($Directory)
        {
                $Locale = new Locale($this->System);
                $Locale->AnalyzeCode($Directory);
          $FileList = scandir($this->Dir);
    foreach($FileList as $FileName)
    {
          if(substr($FileName, -4) == '.php')
          {             
                  $FileLocale = new Locale($this->System);
                  $FileLocale->Dir = $this->Dir;                  
                  $FileLocale->Load(substr($FileName, 0, -4));
                  
                  // Add new
                  foreach($Locale->Texts->Data as $Index => $Item)
                    if(!array_key_exists($Index, $FileLocale->Texts->Data))
                      $FileLocale->Texts->Data[$Index] = $Item;
                  // Remove old
                  foreach($FileLocale->Texts->Data as $Index => $Item)
                    if(!array_key_exists($Index, $Locale->Texts->Data))
                      unset($FileLocale->Texts->Data[$Index]);
              $FileLocale->UpdateToDatabase($this->System->Database, $FileLocale->Texts->Code);
              $FileName = $this->Dir.'/'.$FileLocale->Texts->Code.'.php';
            $FileLocale->SaveToFile($FileName);
          }
        }
        $this->CurrentLocale->Load($this->CurrentLocale->Texts->Code);
        }
        
        function LoadLocale($Code)
        {
    $this->CurrentLocale->Dir = $this->Dir;
          $this->CurrentLocale->Load($Code);
        }
}

// Short named global function
function T($Text)
{
        global $LocaleManager;
        
        if(isset($LocaleManager)) return($LocaleManager->CurrentLocale->Texts->Translate($Text));
          else return($Text);
}