Generated translation resources from the Smarty tags

tpl2php.php

#!/usr/local/bin/php -qn
<?php
/**
 * Generated translation resources from the Smarty tags
 * Tag: <!--t "STRING"-->
 *
 * @author Ryo HAYASHI <ryo88c at gmail.com>
 */
class tpl2php{

    /** @var string Target base directory */
    private $_baseDir = '../views';

    /** Permit extensions */
    private $_extensions = array('tpl');

    /** @var array Translate strings */
    private $_translates = array();

    /**
     * Export translate strings
     *
     * @param string $file Target file
     * @return void
     */
    private function exportTranslateStrings($file){
        $content = file_get_contents($file);
        if (empty($content)) {
            return;
        }
        if(preg_match_all('/<!--t "([^"]+)" "([^"]+)"-->/', $content, $matches, PREG_SET_ORDER)){
            foreach($matches as $match){
                $this->_translates[] = sprintf("__('%s', '%s');", $match[1], $match[2]);
            }
        }
        if(preg_match_all('/<!--t "([^"]+)"-->/', $content, $matches, PREG_SET_ORDER)){
            foreach($matches as $match){
                $this->_translates[] = sprintf("__('%s');", $match[1]);
            }
        }
    }

    /**
     * Recursive dig for directory
     *
     * @param string $dir Base dir
     * @return void
     */
    private function recursiveDig4Dir($dir){
        $d = dir($dir);
        while(false !== ($entry = $d->read())){
            if($entry == '.' || $entry == '..'){
                continue;
            }

            $entry = $dir.'/'.$entry;

            if(is_dir($entry)){
                $this->recursiveDig4Dir($entry);
            }else{
                $pi = pathinfo($entry);
                if(is_readable($entry) && isset($pi['extension']) && in_array($pi['extension'], $this->_extensions)){
                    $this->exportTranslateStrings($entry);
                }
            }
        }
        $d->close();
    }

    /**
     * Constructor
     */
    function __construct(){
        $this->recursiveDig4Dir($this->_baseDir);
        file_put_contents('../Language/tpl.php', sprintf("<?php\n// Genelated: %s\n%s", date('Y-m-d H:i:s'), implode("\n", $this->_translates)));
    }
}
new tpl2php;