mirror of
https://github.com/Mibew/handlebars.php.git
synced 2025-05-02 10:16:41 +03:00
378 lines
11 KiB
PHP
Executable File
378 lines
11 KiB
PHP
Executable File
<?php
|
|
/**
|
|
* This file is part of Handlebars-php
|
|
* Base on mustache-php https://github.com/bobthecow/mustache.php
|
|
*
|
|
* PHP version 5.3
|
|
*
|
|
* @category Xamin
|
|
* @package Handlebars
|
|
* @author fzerorubigd <fzerorubigd@gmail.com>
|
|
* @author Behrooz Shabani <everplays@gmail.com>
|
|
* @copyright 2012 (c) ParsPooyesh Co
|
|
* @copyright 2013 (c) Behrooz Shabani
|
|
* @license MIT <http://opensource.org/licenses/MIT>
|
|
* @version GIT: $Id$
|
|
* @link http://xamin.ir
|
|
*/
|
|
|
|
namespace Handlebars;
|
|
|
|
/**
|
|
* Handlebars base template
|
|
* contain some utility method to get context and helpers
|
|
*
|
|
* @category Xamin
|
|
* @package Handlebars
|
|
* @author fzerorubigd <fzerorubigd@gmail.com>
|
|
* @copyright 2012 (c) ParsPooyesh Co
|
|
* @license MIT <http://opensource.org/licenses/MIT>
|
|
* @version Release: @package_version@
|
|
* @link http://xamin.ir
|
|
*/
|
|
|
|
class Template
|
|
{
|
|
/**
|
|
* @var Handlebars
|
|
*/
|
|
protected $handlebars;
|
|
|
|
|
|
protected $tree = array();
|
|
|
|
protected $source = '';
|
|
|
|
/**
|
|
* @var array Run stack
|
|
*/
|
|
private $_stack = array();
|
|
|
|
/**
|
|
* Handlebars template constructor
|
|
*
|
|
* @param Handlebars $engine handlebar engine
|
|
* @param array $tree Parsed tree
|
|
* @param string $source Handlebars source
|
|
*/
|
|
public function __construct(Handlebars $engine, $tree, $source)
|
|
{
|
|
$this->handlebars = $engine;
|
|
$this->tree = $tree;
|
|
$this->source = $source;
|
|
array_push($this->_stack, array(0, $this->getTree(), false));
|
|
}
|
|
|
|
/**
|
|
* Get current tree
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getTree()
|
|
{
|
|
return $this->tree;
|
|
}
|
|
|
|
/**
|
|
* Get current source
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getSource()
|
|
{
|
|
return $this->source;
|
|
}
|
|
|
|
/**
|
|
* Get current engine associated with this object
|
|
*
|
|
* @return Handlebars
|
|
*/
|
|
public function getEngine()
|
|
{
|
|
return $this->handlebars;
|
|
}
|
|
|
|
/**
|
|
* set stop token for render and discard method
|
|
*
|
|
* @param string $token token to set as stop token or false to remove
|
|
*
|
|
* @return void
|
|
*/
|
|
|
|
public function setStopToken($token)
|
|
{
|
|
$topStack = array_pop($this->_stack);
|
|
$topStack[2] = $token;
|
|
array_push($this->_stack, $topStack);
|
|
}
|
|
|
|
/**
|
|
* get current stop token
|
|
*
|
|
* @return string|bool
|
|
*/
|
|
|
|
public function getStopToken()
|
|
{
|
|
$topStack = end($this->_stack);
|
|
|
|
return $topStack[2];
|
|
}
|
|
|
|
/**
|
|
* Render top tree
|
|
*
|
|
* @param mixed $context current context
|
|
*
|
|
* @throws \RuntimeException
|
|
* @return string
|
|
*/
|
|
public function render($context)
|
|
{
|
|
if (!$context instanceof Context) {
|
|
$context = new Context($context);
|
|
}
|
|
$topTree = end($this->_stack); // never pop a value from stack
|
|
list($index, $tree, $stop) = $topTree;
|
|
|
|
$buffer = '';
|
|
while (array_key_exists($index, $tree)) {
|
|
$current = $tree[$index];
|
|
$index++;
|
|
//if the section is exactly like waitFor
|
|
if (is_string($stop)
|
|
&& $current[Tokenizer::TYPE] == Tokenizer::T_ESCAPED
|
|
&& $current[Tokenizer::NAME] === $stop
|
|
) {
|
|
break;
|
|
}
|
|
switch ($current[Tokenizer::TYPE]) {
|
|
case Tokenizer::T_SECTION :
|
|
$newStack = isset($current[Tokenizer::NODES])
|
|
? $current[Tokenizer::NODES] : array();
|
|
array_push($this->_stack, array(0, $newStack, false));
|
|
$buffer .= $this->_section($context, $current);
|
|
array_pop($this->_stack);
|
|
break;
|
|
case Tokenizer::T_INVERTED :
|
|
$newStack = isset($current[Tokenizer::NODES]) ?
|
|
$current[Tokenizer::NODES] : array();
|
|
array_push($this->_stack, array(0, $newStack, false));
|
|
$buffer .= $this->_inverted($context, $current);
|
|
array_pop($this->_stack);
|
|
break;
|
|
case Tokenizer::T_COMMENT :
|
|
$buffer .= '';
|
|
break;
|
|
case Tokenizer::T_PARTIAL:
|
|
case Tokenizer::T_PARTIAL_2:
|
|
$buffer .= $this->_partial($context, $current);
|
|
break;
|
|
case Tokenizer::T_UNESCAPED:
|
|
case Tokenizer::T_UNESCAPED_2:
|
|
$buffer .= $this->_variables($context, $current, false);
|
|
break;
|
|
case Tokenizer::T_ESCAPED:
|
|
$buffer .= $this->_variables($context, $current, true);
|
|
break;
|
|
case Tokenizer::T_TEXT:
|
|
$buffer .= $current[Tokenizer::VALUE];
|
|
break;
|
|
default:
|
|
throw new \RuntimeException(
|
|
'Invalid node type : ' . json_encode($current)
|
|
);
|
|
}
|
|
}
|
|
if ($stop) {
|
|
//Ok break here, the helper should be aware of this.
|
|
$newStack = array_pop($this->_stack);
|
|
$newStack[0] = $index;
|
|
$newStack[2] = false; //No stop token from now on
|
|
array_push($this->_stack, $newStack);
|
|
}
|
|
|
|
return $buffer;
|
|
}
|
|
|
|
/**
|
|
* Discard top tree
|
|
*
|
|
* @param mixed $context current context
|
|
*
|
|
* @return string
|
|
*/
|
|
public function discard($context)
|
|
{
|
|
if (!$context instanceof Context) {
|
|
$context = new Context($context);
|
|
}
|
|
$topTree = end($this->_stack); //This method never pop a value from stack
|
|
list($index, $tree, $stop) = $topTree;
|
|
while (array_key_exists($index, $tree)) {
|
|
$current = $tree[$index];
|
|
$index++;
|
|
//if the section is exactly like waitFor
|
|
if (is_string($stop)
|
|
&& $current[Tokenizer::TYPE] == Tokenizer::T_ESCAPED
|
|
&& $current[Tokenizer::NAME] === $stop
|
|
) {
|
|
break;
|
|
}
|
|
}
|
|
if ($stop) {
|
|
//Ok break here, the helper should be aware of this.
|
|
$newStack = array_pop($this->_stack);
|
|
$newStack[0] = $index;
|
|
$newStack[2] = false;
|
|
array_push($this->_stack, $newStack);
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Process section nodes
|
|
*
|
|
* @param Context $context current context
|
|
* @param array $current section node data
|
|
*
|
|
* @throws \RuntimeException
|
|
* @return string the result
|
|
*/
|
|
private function _section(Context $context, $current)
|
|
{
|
|
$helpers = $this->handlebars->getHelpers();
|
|
$sectionName = $current[Tokenizer::NAME];
|
|
if ($helpers->has($sectionName)) {
|
|
if (isset($current[Tokenizer::END])) {
|
|
$source = substr(
|
|
$this->getSource(),
|
|
$current[Tokenizer::INDEX],
|
|
$current[Tokenizer::END] - $current[Tokenizer::INDEX]
|
|
);
|
|
} else {
|
|
$source = '';
|
|
}
|
|
$params = array(
|
|
$this, //First argument is this template
|
|
$context, //Second is current context
|
|
$current[Tokenizer::ARGS], //Arguments
|
|
$source
|
|
);
|
|
|
|
$return = call_user_func_array($helpers->$sectionName, $params);
|
|
if ($return instanceof String) {
|
|
return $this->handlebars->loadString($return)->render($context);
|
|
} else {
|
|
return $return;
|
|
}
|
|
} elseif (trim($current[Tokenizer::ARGS]) == '') {
|
|
// fallback to mustache style each/with/for just if there is
|
|
// no argument at all.
|
|
try {
|
|
$sectionVar = $context->get($sectionName, true);
|
|
} catch (\InvalidArgumentException $e) {
|
|
throw new \RuntimeException(
|
|
$sectionName . ' is not registered as a helper'
|
|
);
|
|
}
|
|
$buffer = '';
|
|
if (is_array($sectionVar) || $sectionVar instanceof \Traversable) {
|
|
foreach ($sectionVar as $index => $d) {
|
|
$context->pushIndex($index);
|
|
$context->push($d);
|
|
$buffer .= $this->render($context);
|
|
$context->pop();
|
|
$context->popIndex();
|
|
}
|
|
} elseif (is_object($sectionVar)) {
|
|
//Act like with
|
|
$context->push($sectionVar);
|
|
$buffer = $this->render($context);
|
|
$context->pop();
|
|
} elseif ($sectionVar) {
|
|
$buffer = $this->render($context);
|
|
}
|
|
|
|
return $buffer;
|
|
} else {
|
|
throw new \RuntimeException(
|
|
$sectionName . ' is not registered as a helper'
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process inverted section
|
|
*
|
|
* @param Context $context current context
|
|
* @param array $current section node data
|
|
*
|
|
* @return string the result
|
|
*/
|
|
private function _inverted(Context $context, $current)
|
|
{
|
|
$sectionName = $current[Tokenizer::NAME];
|
|
$data = $context->get($sectionName);
|
|
if (!$data) {
|
|
return $this->render($context);
|
|
} else {
|
|
//No need to discard here, since it has no else
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process partial section
|
|
*
|
|
* @param Context $context current context
|
|
* @param array $current section node data
|
|
*
|
|
* @return string the result
|
|
*/
|
|
private function _partial(Context $context, $current)
|
|
{
|
|
$partial = $this->handlebars->loadPartial($current[Tokenizer::NAME]);
|
|
|
|
if ($current[Tokenizer::ARGS]) {
|
|
$context = $context->get($current[Tokenizer::ARGS]);
|
|
}
|
|
|
|
return $partial->render($context);
|
|
}
|
|
|
|
/**
|
|
* Process partial section
|
|
*
|
|
* @param Context $context current context
|
|
* @param array $current section node data
|
|
* @param boolean $escaped escape result or not
|
|
*
|
|
* @return string the result
|
|
*/
|
|
private function _variables(Context $context, $current, $escaped)
|
|
{
|
|
$name = $current[Tokenizer::NAME];
|
|
$value = $context->get($name);
|
|
if ($name == '@index') {
|
|
return $context->lastIndex();
|
|
}
|
|
if ($name == '@key') {
|
|
return $context->lastKey();
|
|
}
|
|
if ($escaped) {
|
|
$args = $this->handlebars->getEscapeArgs();
|
|
array_unshift($args, $value);
|
|
$value = call_user_func_array(
|
|
$this->handlebars->getEscape(),
|
|
array_values($args)
|
|
);
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
}
|