CodeIgniter gettext with smarty or parser template without php code in view
Ngày 21 tháng 7 năm 2012
I've just finish a script to auto translate the text on CodeIgniter view with parser without any calling the gettext function in view. With this solution, you can apply the translated text via po file very easy and fastest.
The main feature of my library are:
Eg.: The template are:
These are install step:
Step 1: Check your config.php file, my setting is: $config['subclass_prefix'] = 'My_', so if you change this value please also change all My_ prefix in my code when apply to your project.
Step 2: Open the file autoload.php, add My_language to the list of helper:
$autoload['helper'] = array('url', "My_language");
My_language helper will change the languages setting and load the po file, if you had other way to load the po file, please ignore this step.
Step 3: Also add My_parser library to the load list. Make sure that you load the library parser first and then My_parser. Don't switch the order or remove any of them.
$autoload['libraries'] = array('parser', 'My_parser');
This library will override the default CodeIgniter parser and add the translating feature.
Step 4: Create lang.po file in folder: application\language\<language_name>\LC_MESSAGES\lang.po
If you had setup to load the po file already, please ignore this step and the step 5 also.
Step 5: Create the file in application/helpers folder: my_language_helper.php and add the code below:
Step 6: Create file application\libraries\My_Parser.php, and then enter the code below:
If you have any question, do not hesitate to contact me or write your comment on this post.
The main feature of my library are:
- Auto translated all text in view file into new languages
- Support po file
- Don't have to install smarty template, I'm using CodeIgniter parser, other powerful template parser, very easy to understanding and using.
- NEW: Auto remove empty tag. E.g.: Some time, you have a tag or ..{/data} in the view, but in controller you don't init the variable data, so CI will render extractly the tag into final HTML. My library will remove it if you forgot assign every variable.
<html>
<head>
<title></title>
</head>
<body>
<h3></h3>
<h5>{t }Title is{/t}& </h5>
<p>{t 1="<b>" 2="</b>"}Click here %1to see%2 me{/t}</p>
<p>{t 1="" 2="author"}The id is: %1 wrote by %2{/t}</p>
<p>{t 1="<a href=\"link here\">" 2="</a>"}Please lick on me%2{/t}</p>
{/blog_entries}
</body>
</html>So, all of the text above text will be translated to whatever language you want. Is it simple and powerful?These are install step:
Step 1: Check your config.php file, my setting is: $config['subclass_prefix'] = 'My_', so if you change this value please also change all My_ prefix in my code when apply to your project.
Step 2: Open the file autoload.php, add My_language to the list of helper:
$autoload['helper'] = array('url', "My_language");
My_language helper will change the languages setting and load the po file, if you had other way to load the po file, please ignore this step.
Step 3: Also add My_parser library to the load list. Make sure that you load the library parser first and then My_parser. Don't switch the order or remove any of them.
$autoload['libraries'] = array('parser', 'My_parser');
This library will override the default CodeIgniter parser and add the translating feature.
Step 4: Create lang.po file in folder: application\language\<language_name>\LC_MESSAGES\lang.po
If you had setup to load the po file already, please ignore this step and the step 5 also.
Step 5: Create the file in application/helpers folder: my_language_helper.php and add the code below:
<?php& if (!defined('BASEPATH')) exit('No direct script access allowed');
function set_translation_language($language){
$lang_path = APPPATH.'language';
putenv("LC_ALL=$language");
setlocale(LC_ALL, $language.'.UTF-8');
bindtextdomain('lang', $lang_path);
textdomain('lang');
}
set_translation_language("en_EN");
That helper will setup and load the po file, in any where in your controller/model or view, just call set_translation_language("lang_name"); to change the language.Step 6: Create file application\libraries\My_Parser.php, and then enter the code below:
<?php if (!defined('BASEPATH'))
exit('No direct script access allowed');
/**
* My_Parser Class
*
* @package CodeIgniter
* @subpackage Libraries
* @category Parser
* @author Truong Chuong Duong
* @copyright Copyright (c) 2012, Truong Chuong Duong. (http://chuongduong.net/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://chuongduong.net
* @since Version 0.2 - Updated 2012-09-21
*/
class My_Parser extends CI_Parser
{
function __construct()
{
//@parent::__construct();
}
/**
* Parse a template
*
* Parses pseudo-variables contained in the specified template,
* replacing them with the data in the second param
*
* @param string
* @param array
* @param bool
* @return string
*/
protected function _parse($template, $data, $return = false)
{
if ($template === '') {
return false;
}
//Create new array for and {/key} - parse_pair
$keys = array();
preg_match_all("/({$this->l_delim}\/)([a-zA-Z0-9_]*)({$this->r_delim})/u", $template, $keys);
$keys = $keys[2];
foreach($keys as $key)
{
if ($key == "t")
continue;
if (!isset($data[$key]) || !is_array($data[$key]))
$data[$key] = array();
}
$final = parent::_parse($this->gettext($template), $data, $return);
//Remove all - parse_single
$final = preg_replace("/({)([a-zA-Z0-9_]*)(})/u","", $final);
return $final;
}
//Fixed the text
protected function fs($str)
{
$str = stripslashes($str);
$str = str_replace('"', '\"', $str);
$str = str_replace("\n", '\n', $str);
return trim($str);
}
/*
Replace the params in tab.
Eg.:
{t 1="value 1" 2="value 2"}This is param 1 value: %1, this is param 2 value: %2, param 2 again: %2{/t}
Become:
This is param 1 value: value 1, this is param 2 value: value 2, param 2 again: value 2
*/
protected function replaceParam($content, $paramtext)
{
$paramtext = str_replace('\\"', """, $paramtext);
$tmp = explode('"', $paramtext);
for ($i = 0; $i < count($tmp); $i += 2) {
if (!isset($tmp[$i + 1]))
$tmp[$i + 1] = "";
$tmp[$i] = trim($tmp[$i], " =");
if (empty($tmp[$i]))
continue;
$content = str_replace("%" . $tmp[$i], $tmp[$i + 1], $content);
}
return $content;
}
/*
Replace all tab to the translated text
*/
protected function gettext($content)
{
if (empty($content)) {
return;
}
$ldq = $this->l_delim;
$rdq = $this->r_delim;
$cmd = preg_quote('t');
$content = preg_replace("/($ldq)([a-zA-Z0-9_]*)($rdq)/u","_begin_val_$2_end_val_", $content);
$content = preg_replace("/(_begin_val_){$cmd}(_end_val_)/u","{{$cmd}}", $content);
preg_match_all("/{$ldq}\s*({$cmd})\s*([^{$rdq}]*){$rdq}([^{$ldq}]*){$ldq}\/\\1{$rdq}/", $content, $matches);
for ($i = 0; $i < count($matches[0]); $i++) {
$str = gettext($this->fs($matches[3][$i]));
if (!empty($matches[2][$i])) {
$str = $this->replaceParam($str, $matches[2][$i]);
}
$content = str_replace($matches[0][$i], $str, $content);
}
$content = str_replace(array("_begin_val_", "_end_val_"),array($ldq,$rdq), $content);
return $content;
}
}
//Auto init and replace the default parser
$CI =& get_instance();
$CI->parser = new My_Parser();
/* End of file My_parser.php */
From now, every thing is ready for you.If you have any question, do not hesitate to contact me or write your comment on this post.
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