mirror of
https://github.com/Mibew/handlebars.php.git
synced 2025-11-04 12:05:09 +03:00
128 lines
4.2 KiB
PHP
Executable File
128 lines
4.2 KiB
PHP
Executable File
<?php
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/**
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* This file is part of Handlebars-php
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* Base on mustache-php https://github.com/bobthecow/mustache.php
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* re-write to use with handlebars
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*
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* PHP version 5.3
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*
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* @category Xamin
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* @package Handlebars
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* @author fzerorubigd <fzerorubigd@gmail.com>
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* @author Behrooz Shabani <everplays@gmail.com>
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* @copyright 2010-2012 (c) Justin Hileman
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* @copyright 2012 (c) ParsPooyesh Co
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* @copyright 2013 (c) Behrooz Shabani
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* @license MIT <http://opensource.org/licenses/MIT>
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* @version GIT: $Id$
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* @link http://xamin.ir
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*/
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namespace Handlebars;
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/**
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* Handlebars parser (based on mustache)
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*
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* This class is responsible for turning raw template source into a set of
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* Handlebars tokens.
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*
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* @category Xamin
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* @package Handlebars
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* @author fzerorubigd <fzerorubigd@gmail.com>
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* @copyright 2010-2012 (c) Justin Hileman
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* @copyright 2012 (c) ParsPooyesh Co
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* @license MIT <http://opensource.org/licenses/MIT>
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* @version Release: @package_version@
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* @link http://xamin.ir
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*/
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class Parser
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{
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/**
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* Process array of tokens and convert them into parse tree
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*
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* @param array $tokens Set of
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*
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* @return array Token parse tree
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*/
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public function parse(array $tokens = array())
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{
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return $this->_buildTree(new \ArrayIterator($tokens));
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}
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/**
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* Helper method for recursively building a parse tree.
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* Trim right and trim left is a bit tricky here.
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* {{#begin~}}{{TOKEN}}, TOKEN.. {{LAST}}{{~/begin}} is translated to:
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* {{#begin}}{{~TOKEN}}, TOKEN.. {{LAST~}}{{/begin}}
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*
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* @param \ArrayIterator $tokens Stream of tokens
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*
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* @throws \LogicException when nesting errors or mismatched section tags
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* are encountered.
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* @return array Token parse tree
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*/
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private function _buildTree(\ArrayIterator $tokens)
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{
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$stack = array();
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do {
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$token = $tokens->current();
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$tokens->next();
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if ($token !== null) {
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switch ($token[Tokenizer::TYPE]) {
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case Tokenizer::T_END_SECTION:
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$newNodes = array($token);
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do {
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$result = array_pop($stack);
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if ($result === null) {
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throw new \LogicException(
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sprintf(
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'Unexpected closing tag: /%s',
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$token[Tokenizer::NAME]
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)
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);
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}
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if (!array_key_exists(Tokenizer::NODES, $result)
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&& isset($result[Tokenizer::NAME])
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&& $result[Tokenizer::NAME] == $token[Tokenizer::NAME]
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) {
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if (isset($result[Tokenizer::TRIM_RIGHT])
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&& $result[Tokenizer::TRIM_RIGHT]
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) {
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// If the start node has trim right, then its equal
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//with the first item in the loop with
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// Trim left
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$newNodes[0][Tokenizer::TRIM_LEFT] = true;
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}
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if (isset($token[Tokenizer::TRIM_RIGHT])
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&& $token[Tokenizer::TRIM_RIGHT]
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) {
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//OK, if we have trim right here, we should
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//pass it to the upper level.
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$result[Tokenizer::TRIM_RIGHT] = true;
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}
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$result[Tokenizer::NODES] = $newNodes;
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$result[Tokenizer::END] = $token[Tokenizer::INDEX];
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array_push($stack, $result);
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break;
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} else {
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array_unshift($newNodes, $result);
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}
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} while (true);
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break;
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default:
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array_push($stack, $token);
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}
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}
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} while ($tokens->valid());
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return $stack;
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}
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} |