smarty/libs/sysplugins/internal.compile_assign.php

<?php

/**
* Smarty Internal Plugin Compile Assign
* 
* Compiles the {assign} tag
* 
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews 
*/
/**
* Smarty Internal Plugin Compile Assign Class
*/
class Smarty_Internal_Compile_Assign extends Smarty_Internal_CompileBase {
    /**
    * Compiles code for the {assign} tag
    * 
    * @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('var', 'value');
        $this->optional_attributes = array('global', 'nocache', 'index');

        $_nocache = 'null';
        $_global = 'null';
        // check for nocache attribute before _get_attributes because
        // it shall not controll caching of the compiled code, but is a parameter
        if (isset($args['nocache'])) {
            if ($args['nocache'] == 'true') {
                $_nocache = 'true';
                $_nocache_boolean = true;
            } 
            unset($args['nocache']);
        } 
        // check and get attributes
        $_attr = $this->_get_attributes($args);

        if (isset($_attr['global']) && $_attr['global'] == 'true') {
            $_global = 'true';
            $_global_boolean = true;
        } 
        if (isset($_attr['index'])) {
            $_index = $_attr['index'];
        } 
        // compiled output
        if (isset($_attr['index'])) {
            if ($_attr['index'] == '') {
                return "<?php \$_smarty_tpl->append($_attr[var],$_attr[value],false,$_nocache,$_global);?>";
            } else {
                return "<?php \$_tmp$_attr[index] = $_attr[value]; \$_smarty_tpl->append($_attr[var],\$_tmp,true,$_nocache,$_global);?>";
            } 
        } else {
            return "<?php \$_smarty_tpl->assign($_attr[var],$_attr[value],$_nocache,$_global);?>";
        } 
    } 
} 

?>