ThinkPHP/Library/Vendor/Smarty/sysplugins/smarty_internal_compile_private_print_expression.php

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<?php
/**
* Smarty Internal Plugin Compile Print Expression
*
* Compiles any tag which will output an expression or variable
*
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews
*/

/**
* Smarty Internal Plugin Compile Print Expression Class
*
* @package Smarty
* @subpackage Compiler
*/
class Smarty_Internal_Compile_Private_Print_Expression extends Smarty_Internal_CompileBase {

    /**
    * Attribute definition: Overwrites base class.
    *
    * @var array
    * @see Smarty_Internal_CompileBase
    */
    public $optional_attributes = array('assign');
    /**
    * Attribute definition: Overwrites base class.
    *
    * @var array
    * @see Smarty_Internal_CompileBase
    */
    public $option_flags = array('nocache', 'nofilter');

    /**
    * Compiles code for gererting output from any expression
    *
    * @param array  $args      array with attributes from parser
    * @param object $compiler  compiler object
    * @param array  $parameter array with compilation parameter
    * @return string compiled code
    */
    public function compile($args, $compiler, $parameter)
    {
        // check and get attributes
        $_attr = $this->getAttributes($compiler, $args);
        // nocache option
        if ($_attr['nocache'] === true) {
            $compiler->tag_nocache = true;
        }
        // filter handling
        if ($_attr['nofilter'] === true) {
            $_filter = 'false';
        } else {
            $_filter = 'true';
        }
        if (isset($_attr['assign'])) {
            // assign output to variable
            $output = "<?php \$_smarty_tpl->assign({$_attr['assign']},{$parameter['value']});?>";
        } else {