<?php

/**
* Smarty Internal Plugin Resource Stream
* 
* Implements the streams as resource for Smarty template
* 
* @package Smarty
* @subpackage TemplateResources
* @author Uwe Tews 
*/
/**
* Smarty Internal Plugin Resource Stream
*/

class Smarty_Internal_Resource_Stream {
    public function __construct($smarty)
    {
        $this->smarty = $smarty;
    } 
    // classes used for compiling Smarty templates from file resource
    public $compiler_class = 'Smarty_Internal_SmartyTemplateCompiler';
    public $template_lexer_class = 'Smarty_Internal_Templatelexer';
    public $template_parser_class = 'Smarty_Internal_Templateparser';

    /**
    * Return flag if template source is existing
    * 
    * @return boolean true
    */
    public function isExisting($template)
    {
        if ($template->getTemplateSource() == '') {
            return false;
        } else {
            return true;
        } 
    } 
    /**
    * Get filepath to template source
    * 
    * @param object $_template template object
    * @return string return 'string' as template source is not a file
    */
    public function getTemplateFilepath($_template)
    { 
        // no filepath for strings
        // return resource name for compiler error messages
        return str_replace(':', '://', $_template->template_resource);
    } 

    /**
    * Get timestamp to template source
    * 
    * @param object $_template template object
    * @return boolean false as string resources have no timestamp
    */
    public function getTemplateTimestamp($_template)
    { 
        // strings must always be compiled and have no timestamp
        return false;
    } 

    /**
    * Retuen template source from resource name
    * 
    * @param object $_template template object
    * @return string content of template source
    */
    public function getTemplateSource($_template)
    { 
        // return template string
        $_template->template_source = '';
        $fp = fopen(str_replace(':', '://', $_template->template_resource),'r+');
        while (!feof($fp)) {
            $_template->template_source .= fgets($fp);
        } 
        fclose($fp);

        return true;
    } 

    /**
    * Return flag that this resource uses the compiler
    * 
    * @return boolean true
    */
    public function usesCompiler()
    { 
        // resource string is template, needs compiler
        return true;
    } 

    /**
    * Return flag that this resource is evaluated
    * 
    * @return boolean true
    */
    public function isEvaluated()
    { 
        // compiled template is evaluated instead of saved to disk
        return true;
    } 

    /**
    * Get filepath to compiled template
    * 
    * @param object $_template template object
    * @return boolean return false as compiled template is not stored
    */
    public function getCompiledFilepath($_template)
    { 
        // no filepath for strings
        return false;
    } 
} 

?>
