<?php

/**
* Smarty Internal Plugin Compile Function_Call
* 
* Compiles the calls of user defined tags defined by {function}
* 
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews 
*/
/**
* Smarty Internal Plugin Compile Function_Call Class
*/
class Smarty_Internal_Compile_Function_Call extends Smarty_Internal_CompileBase {
    /**
    * Compiles the calls of user defined tags defined by {function}
    * 
    * @param array $args array with attributes from parser
    * @param object $compiler compiler object
    * @return string compiled code
    */
    public function compile($args, $compiler)
    {
        $this->compiler = $compiler;
        $this->required_attributes = array('name');
        $this->optional_attributes = array('_any'); 
        // check and get attributes
        $_attr = $this->_get_attributes($args); 
        // save posible attributes
        if (isset($_attr['assign'])) {
            // output will be stored in a smarty variable instead of beind displayed
            $_assign = $_attr['assign'];
        } 
        $_name = trim($_attr['name'], "'"); 
        // create template object
        $_output = "<?php \$_template = new Smarty_Template ('string:', \$_smarty_tpl->smarty, \$_smarty_tpl);\n"; 
        // assign default paramter
        if (isset($this->smarty->template_functions[$_name]['parameter'])) {
            // function is already compiled
            foreach ($this->smarty->template_functions[$_name]['parameter'] as $_key => $_value) {
                if (!isset($_attr[$_key])) {
                    $_output .= "\$_template->assign('$_key',$_value);\n";
                } 
            } 
        } 
        if (isset($compiler->template->properties['function'][$_name]['parameter'])) {
            // for recursive call during function compilation
            foreach ($compiler->template->properties['function'][$_name]['parameter'] as $_key => $_value) {
                if (!isset($_attr[$_key])) {
                    $_output .= "\$_template->assign('$_key',$_value);\n";
                } 
            } 
        } 
        // delete {include} standard attributes
        unset($_attr['name'], $_attr['assign']); 
        // remaining attributes must be assigned as smarty variable
        if (!empty($_attr)) {
            // create variables
            foreach ($_attr as $_key => $_value) {
                $_output .= "\$_template->assign('$_key',$_value);\n";
            } 
        } 
        // load compiled function
        $_output .= "\$_template->compiled_template = \$this->smarty->template_functions['$_name']['compiled'];\n\$_template->mustCompile = false;\n"; 
        // was there an assign attribute
        if (isset($_assign)) {
            $_output .= "\$_smarty_tpl->assign($_assign,\$_smarty_tpl->smarty->fetch(\$_template)); ?>";
        } else {
            $_output .= "echo \$_smarty_tpl->smarty->fetch(\$_template); ?>";
        } 
        return $_output;
    } 
} 

?>
