<?php

/**

 * Smarty Internal Plugin Compile Function

 *

 * Compiles the {function} {/function} tags

 *

 * @package Smarty

 * @subpackage Compiler

 * @author Uwe Tews

 */



/**

 * Smarty Internal Plugin Compile Function Class

 *

 * @package Smarty

 * @subpackage Compiler

 */

class Smarty_Internal_Compile_Function extends Smarty_Internal_CompileBase {



    /**

     * Attribute definition: Overwrites base class.

     *

     * @var array

     * @see Smarty_Internal_CompileBase

     */

    public $required_attributes = array('name');

    /**

     * Attribute definition: Overwrites base class.

     *

     * @var array

     * @see Smarty_Internal_CompileBase

     */

    public $shorttag_order = array('name');

    /**

     * Attribute definition: Overwrites base class.

     *

     * @var array

     * @see Smarty_Internal_CompileBase

     */

    public $optional_attributes = array('_any');



    /**

     * Compiles code for the {function} tag

     *

     * @param array $args array with attributes from parser

     * @param object $compiler compiler object

     * @param array $parameter array with compilation parameter

     * @return boolean true

     */

    public function compile($args, $compiler, $parameter)

    {

        // check and get attributes

        $_attr = $this->getAttributes($compiler, $args);



        if ($_attr['nocache'] === true) {

            $compiler->trigger_template_error('nocache option not allowed', $compiler->lex->taglineno);

        }

        unset($_attr['nocache']);

        $save = array($_attr, $compiler->parser->current_buffer,

            $compiler->template->has_nocache_code, $compiler->template->required_plugins);

        $this->openTag($compiler, 'function', $save);

        $_name = trim($_attr['name'], "'\"");

        unset($_attr['name']);

        // set flag that we are compiling a template function

        $compiler->compiles_template_function = true;

        $compiler->template->properties['function'][$_name]['parameter'] = array();

        $_smarty_tpl = $compiler->template;

        foreach ($_attr as $_key => $_data) {

            eval ('$tmp='.$_data.';');

            $compiler->template->properties['function'][$_name]['parameter'][$_key] = $tmp;

        }

        $compiler->smarty->template_functions[$_name]['parameter'] = $compiler->template->properties['function'][$_name]['parameter'];

        if ($compiler->template->caching) {

            $output = '';

        } else {

            $output = "<?php if (!function_exists('smarty_template_function_{$_name}')) {

    function smarty_template_function_{$_name}(\$_smarty_tpl,\$params) {

    \$saved_tpl_vars = \$_smarty_tpl->tpl_vars;

    foreach (\$_smarty_tpl->smarty->template_functions['{$_name}']['parameter'] as \$key => \$value) {\$_smarty_tpl->tpl_vars[\$key] = new Smarty_variable(\$value);};

    foreach (\$params as \$key => \$value) {\$_smarty_tpl->tpl_vars[\$key] = new Smarty_variable(\$value);}?>";

        }

        // Init temporay context

        $compiler->template->required_plugins = array('compiled' => array(), 'nocache' => array());

        $compiler->parser->current_buffer = new _smarty_template_buffer($compiler->parser);

        $compiler->parser->current_buffer->append_subtree(new _smarty_tag($compiler->parser, $output));

        $compiler->template->has_nocache_code = false;

        $compiler->has_code = false;

        $compiler->template->properties['function'][$_name]['compiled'] = '';

        return true;

    }



}



/**

 * Smarty Internal Plugin Compile Functionclose Class

 *

 * @package Smarty

 * @subpackage Compiler

 */

class Smarty_Internal_Compile_Functionclose extends Smarty_Internal_CompileBase {



    /**

     * Compiles code for the {/function} tag

     *

     * @param array $args array with attributes from parser

     * @param object $compiler compiler object

     * @param array $parameter array with compilation parameter

     * @return boolean true

     */

    public function compile($args, $compiler, $parameter)

    {

        $_attr = $this->getAttributes($compiler, $args);

        $saved_data = $this->closeTag($compiler, array('function'));

        $_name = trim($saved_data[0]['name'], "'\"");

        // build plugin include code

        $plugins_string = '';

        if (!empty($compiler->template->required_plugins['compiled'])) {

            $plugins_string = '<?php ';

            foreach($compiler->template->required_plugins['compiled'] as $tmp) {

                foreach($tmp as $data) {

                    $plugins_string .= "if (!is_callable('{$data['function']}')) include '{$data['file']}';\n";

                }

            }

            $plugins_string .= '?>';

        }

        if (!empty($compiler->template->required_plugins['nocache'])) {

            $plugins_string .= "<?php echo '/*%%SmartyNocache:{$compiler->template->properties['nocache_hash']}%%*/<?php ";

            foreach($compiler->template->required_plugins['nocache'] as $tmp) {

                foreach($tmp as $data) {

                    $plugins_string .= "if (!is_callable(\'{$data['function']}\')) include \'{$data['file']}\';\n";

                }

            }

            $plugins_string .= "?>/*/%%SmartyNocache:{$compiler->template->properties['nocache_hash']}%%*/';?>\n";

        }

         // remove last line break from function definition

         $last = count($compiler->parser->current_buffer->subtrees) - 1;

         if ($compiler->parser->current_buffer->subtrees[$last] instanceof _smarty_linebreak) {

             unset($compiler->parser->current_buffer->subtrees[$last]);

         }

        // if caching save template function for possible nocache call

        if ($compiler->template->caching) {

            $compiler->template->properties['function'][$_name]['compiled'] .= $plugins_string

             . $compiler->parser->current_buffer->to_smarty_php();

            $compiler->template->properties['function'][$_name]['nocache_hash'] = $compiler->template->properties['nocache_hash'];

            $compiler->template->properties['function'][$_name]['has_nocache_code'] = $compiler->template->has_nocache_code;

            $compiler->template->properties['function'][$_name]['called_functions'] = $compiler->called_functions;

            $compiler->called_functions = array();

            $compiler->smarty->template_functions[$_name] = $compiler->template->properties['function'][$_name];

            $compiler->has_code = false;

            $output = true;

        } else {

            $output = $plugins_string . $compiler->parser->current_buffer->to_smarty_php() . "<?php \$_smarty_tpl->tpl_vars = \$saved_tpl_vars;}}?>\n";

        }

        // reset flag that we are compiling a template function

        $compiler->compiles_template_function = false;

        // restore old compiler status

        $compiler->parser->current_buffer = $saved_data[1];

        $compiler->template->has_nocache_code = $compiler->template->has_nocache_code | $saved_data[2];

        $compiler->template->required_plugins = $saved_data[3];

        return $output;

    }



}



?>