Mibew/handlebars.php
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return {{^var}} handler

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This commit is contained in:
fzerorubigd 2012-11-29 12:20:49 +03:30
parent 9fb753f75c
commit 8d266bfcd8
3 changed files with 77 additions and 51 deletions
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20
src/Handlebars/Parser.php
View File

@ -2,10 +2,10 @@
/** /**
* This file is part of Handlebars-php * This file is part of Handlebars-php
* Base on mustache-php https://github.com/bobthecow/mustache.php * Base on mustache-php https://github.com/bobthecow/mustache.php
* re-write to use with handlebars * re-write to use with handlebars
* *
* PHP version 5.3 * PHP version 5.3
* *
* @category Xamin * @category Xamin
* @package Handlebars * @package Handlebars
* @author fzerorubigd <fzerorubigd@gmail.com> * @author fzerorubigd <fzerorubigd@gmail.com>
@ -18,7 +18,7 @@
/** /**
* Handlebars parser (infact its a mustache parser) * Handlebars parser (infact its a mustache parser)
* This class is responsible for turning raw template source into a set of Mustache tokens. * This class is responsible for turning raw template source into a set of Mustache tokens.
* *
* @category Xamin * @category Xamin
* @package Handlebars * @package Handlebars
* @author fzerorubigd <fzerorubigd@gmail.com> * @author fzerorubigd <fzerorubigd@gmail.com>
@ -33,7 +33,7 @@ class Handlebars_Parser
/** /**
* Process array of tokens and convert them into parse tree * Process array of tokens and convert them into parse tree
* *
* @param array $tokens Set of * @param array $tokens Set of
* *
* @return array Token parse tree * @return array Token parse tree
*/ */
@ -71,8 +71,8 @@ class Handlebars_Parser
if ($result === null) { if ($result === null) {
throw new LogicException('Unexpected closing tag: /'. $token[Handlebars_Tokenizer::NAME]); throw new LogicException('Unexpected closing tag: /'. $token[Handlebars_Tokenizer::NAME]);
} }
if (!array_key_exists(Handlebars_Tokenizer::NODES, $result) if (!array_key_exists(Handlebars_Tokenizer::NODES, $result)
&& isset($result[Handlebars_Tokenizer::NAME]) && isset($result[Handlebars_Tokenizer::NAME])
&& $result[Handlebars_Tokenizer::NAME] == $token[Handlebars_Tokenizer::NAME] && $result[Handlebars_Tokenizer::NAME] == $token[Handlebars_Tokenizer::NAME]
) { ) {
@ -81,8 +81,8 @@ class Handlebars_Parser
array_push($stack, $result); array_push($stack, $result);
break 2; break 2;
} else { } else {
array_unshift($newNodes, $result); array_unshift($newNodes, $result);
} }
} while (true); } while (true);
break; break;
default: default:
@ -95,4 +95,4 @@ class Handlebars_Parser
return $stack; return $stack;
} }
} }

90
src/Handlebars/Template.php
View File

@ -2,9 +2,9 @@
/** /**
* This file is part of Handlebars-php * This file is part of Handlebars-php
* Base on mustache-php https://github.com/bobthecow/mustache.php * Base on mustache-php https://github.com/bobthecow/mustache.php
* *
* PHP version 5.3 * PHP version 5.3
* *
* @category Xamin * @category Xamin
* @package Handlebars * @package Handlebars
* @author fzerorubigd <fzerorubigd@gmail.com> * @author fzerorubigd <fzerorubigd@gmail.com>
@ -18,7 +18,7 @@
/** /**
* Handlebars base template * Handlebars base template
* contain some utility method to get context and helpers * contain some utility method to get context and helpers
* *
* @category Xamin * @category Xamin
* @package Handlebars * @package Handlebars
* @author fzerorubigd <fzerorubigd@gmail.com> * @author fzerorubigd <fzerorubigd@gmail.com>
@ -34,7 +34,7 @@ class Handlebars_Template
* @var Handlebars_Engine * @var Handlebars_Engine
*/ */
protected $handlebars; protected $handlebars;
protected $tree = array(); protected $tree = array();
@ -83,37 +83,37 @@ class Handlebars_Template
/** /**
* Get current engine associated with this object * Get current engine associated with this object
* *
* @return Handlebars_Engine * @return Handlebars_Engine
*/ */
public function getEngine() public function getEngine()
{ {
return $this->handlebars; return $this->handlebars;
} }
/** /**
* set stop token for render and discard method * set stop token for render and discard method
* *
* @param string $token token to set as stop token or false to remove * @param string $token token to set as stop token or false to remove
* *
* @return void * @return void
*/ */
public function setStopToken($token) public function setStopToken($token)
{ {
$this->_stopToken = $token; $this->_stopToken = $token;
} }
/** /**
* get current stop token * get current stop token
* *
* @return string|false * @return string|false
*/ */
public function getStopToken() public function getStopToken()
{ {
return $this->_stopToken; return $this->_stopToken;
} }
/** /**
* Render top tree * Render top tree
* *
@ -125,7 +125,7 @@ class Handlebars_Template
{ {
if (!$context instanceof Handlebars_Context) { if (!$context instanceof Handlebars_Context) {
$context = new Handlebars_Context($context); $context = new Handlebars_Context($context);
} }
$topTree = end($this->_stack); //This method never pop a value from stack $topTree = end($this->_stack); //This method never pop a value from stack
list($index ,$tree) = $topTree; list($index ,$tree) = $topTree;
@ -133,9 +133,9 @@ class Handlebars_Template
while (array_key_exists($index, $tree)) { while (array_key_exists($index, $tree)) {
$current = $tree[$index]; $current = $tree[$index];
$index++; $index++;
//if the section is exactly like waitFor //if the section is exactly like waitFor
if (is_string($this->_stopToken) if (is_string($this->_stopToken)
&& $current[Handlebars_Tokenizer::TYPE] == Handlebars_Tokenizer::T_ESCAPED && $current[Handlebars_Tokenizer::TYPE] == Handlebars_Tokenizer::T_ESCAPED
&& $current[Handlebars_Tokenizer::NAME] === $this->_stopToken && $current[Handlebars_Tokenizer::NAME] === $this->_stopToken
) { ) {
//Ok break here, the helper should be aware of this. //Ok break here, the helper should be aware of this.
@ -151,7 +151,13 @@ class Handlebars_Template
$buffer .= $this->_section($context, $current); $buffer .= $this->_section($context, $current);
array_pop($this->_stack); array_pop($this->_stack);
break; break;
case Handlebars_Tokenizer::T_COMMENT : case Handlebars_Tokenizer::T_INVERTED :
$newStack = isset($current[Handlebars_Tokenizer::NODES]) ? $current[Handlebars_Tokenizer::NODES] : array();
array_push($this->_stack, array(0, $newStack));
$buffer .= $this->_inverted($context, $current);
array_pop($this->_stack);
break;
case Handlebars_Tokenizer::T_COMMENT :
$buffer .= ''; $buffer .= '';
break; break;
case Handlebars_Tokenizer::T_PARTIAL: case Handlebars_Tokenizer::T_PARTIAL:
@ -174,7 +180,7 @@ class Handlebars_Template
} }
return $buffer; return $buffer;
} }
/** /**
* Discard top tree * Discard top tree
* *
@ -186,27 +192,27 @@ class Handlebars_Template
{ {
if (!$context instanceof Handlebars_Context) { if (!$context instanceof Handlebars_Context) {
$context = new Handlebars_Context($context); $context = new Handlebars_Context($context);
} }
$topTree = end($this->_stack); //This method never pop a value from stack $topTree = end($this->_stack); //This method never pop a value from stack
list($index ,$tree) = $topTree; list($index ,$tree) = $topTree;
while (array_key_exists($index, $tree)) { while (array_key_exists($index, $tree)) {
$current = $tree[$index]; $current = $tree[$index];
$index++; $index++;
//if the section is exactly like waitFor //if the section is exactly like waitFor
if (is_string($this->_stopToken) if (is_string($this->_stopToken)
&& $current[Handlebars_Tokenizer::TYPE] == Handlebars_Tokenizer::T_ESCAPED && $current[Handlebars_Tokenizer::TYPE] == Handlebars_Tokenizer::T_ESCAPED
&& $current[Handlebars_Tokenizer::NAME] === $this->_stopToken && $current[Handlebars_Tokenizer::NAME] === $this->_stopToken
) { ) {
//Ok break here, the helper should be aware of this. //Ok break here, the helper should be aware of this.
$newStack = array_pop($this->_stack); $newStack = array_pop($this->_stack);
$newStack[0] = $index; $newStack[0] = $index;
array_push($this->_stack, $newStack); array_push($this->_stack, $newStack);
break; break;
} }
} }
return ''; return '';
} }
/** /**
* Process section nodes * Process section nodes
@ -215,7 +221,7 @@ class Handlebars_Template
* @param array $current section node data * @param array $current section node data
* *
* @return string the result * @return string the result
*/ */
private function _section(Handlebars_Context $context, $current) private function _section(Handlebars_Context $context, $current)
{ {
$helpers = $this->handlebars->getHelpers(); $helpers = $this->handlebars->getHelpers();
@ -229,7 +235,7 @@ class Handlebars_Template
); );
} else { } else {
$source = ''; $source = '';
} }
$params = array( $params = array(
$this, //First argument is this template $this, //First argument is this template
$context, //Secound is current context $context, //Secound is current context
@ -237,12 +243,12 @@ class Handlebars_Template
$source $source
); );
return call_user_func_array($helpers->$sectionName, $params); return call_user_func_array($helpers->$sectionName, $params);
} elseif (trim($current[Handlebars_Tokenizer::ARGS]) == '') { } elseif (trim($current[Handlebars_Tokenizer::ARGS]) == '') {
//Fallback for mustache style each/with/for just if there is no argument at all. //Fallback for mustache style each/with/for just if there is no argument at all.
try { try {
$sectionVar = $context->get($sectionName, true); $sectionVar = $context->get($sectionName, true);
} catch (InvalidArgumentException $e) { } catch (InvalidArgumentException $e) {
throw new RuntimeException($sectionName . ' is not registered as a helper'); throw new RuntimeException($sectionName . ' is not registered as a helper');
} }
$buffer = ''; $buffer = '';
if (is_array($sectionVar) || $sectionVar instanceof Traversable) { if (is_array($sectionVar) || $sectionVar instanceof Traversable) {
@ -252,7 +258,7 @@ class Handlebars_Template
$context->pop(); $context->pop();
} }
} elseif (is_object($sectionVar)) { } elseif (is_object($sectionVar)) {
//Act like with //Act like with
$context->push($sectionVar); $context->push($sectionVar);
$buffer = $this->render($context); $buffer = $this->render($context);
$context->pop(); $context->pop();
@ -262,7 +268,27 @@ class Handlebars_Template
return $buffer; return $buffer;
} else { } else {
throw new RuntimeException($sectionName . ' is not registered as a helper'); throw new RuntimeException($sectionName . ' is not registered as a helper');
} }
}
/**
* Process inverted section
*
* @param Handlebars_Context $context current context
* @param array $current section node data
*
* @return string the result
*/
private function _inverted(Handlebars_Context $context, $current)
{
$sectionName = $current[Handlebars_Tokenizer::NAME];
$data = $context->get($sectionName);
if (!$data) {
return $this->render($context);
} else {
//No need to disacard here, since itshas no else
return '';
}
} }
/** /**
@ -298,6 +324,6 @@ class Handlebars_Template
} }
return $value; return $value;
} }
} }

18
src/Handlebars/Tokenizer.php
View File

@ -4,9 +4,9 @@
* For the full copyright and license information, please view the LICENSE * For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code. * file that was distributed with this source code.
* Changes to match xamin-std and handlebars made by xamin team * Changes to match xamin-std and handlebars made by xamin team
* *
* PHP version 5.3 * PHP version 5.3
* *
* @category Xamin * @category Xamin
* @package Handlebars * @package Handlebars
* @author Justin Hileman <dontknow@example.org> * @author Justin Hileman <dontknow@example.org>
@ -22,12 +22,12 @@
* Handlebars parser (infact its a mustache parser) * Handlebars parser (infact its a mustache parser)
* This class is responsible for turning raw template source into a set of Mustache tokens. * This class is responsible for turning raw template source into a set of Mustache tokens.
* Some minor changes to handle Handlebars instead of Mustache * Some minor changes to handle Handlebars instead of Mustache
* *
* @category Xamin * @category Xamin
* @package Handlebars * @package Handlebars
* @author Justin Hileman <dontknow@example.org> * @author Justin Hileman <dontknow@example.org>
* @copyright 2012 Justin Hileman
* @author fzerorubigd <fzerorubigd@gmail.com> * @author fzerorubigd <fzerorubigd@gmail.com>
* @copyright 2012 Justin Hileman
* @license MIT <http://opensource.org/licenses/mit-license.php> * @license MIT <http://opensource.org/licenses/mit-license.php>
* @version Release: @package_version@ * @version Release: @package_version@
* @link http://xamin.ir * @link http://xamin.ir
@ -42,7 +42,7 @@ class Handlebars_Tokenizer
// Token types // Token types
const T_SECTION = '#'; const T_SECTION = '#';
//const T_INVERTED = '^'; //Must remove this const T_INVERTED = '^';
const T_END_SECTION = '/'; const T_END_SECTION = '/';
const T_COMMENT = '!'; const T_COMMENT = '!';
const T_PARTIAL = '>'; //Maybe remove this partials and replace them with helpers const T_PARTIAL = '>'; //Maybe remove this partials and replace them with helpers
@ -56,7 +56,7 @@ class Handlebars_Tokenizer
// Valid token types // Valid token types
private static $_tagTypes = array( private static $_tagTypes = array(
self::T_SECTION => true, self::T_SECTION => true,
//self::T_INVERTED => true, self::T_INVERTED => true,
self::T_END_SECTION => true, self::T_END_SECTION => true,
self::T_COMMENT => true, self::T_COMMENT => true,
self::T_PARTIAL => true, self::T_PARTIAL => true,
@ -132,7 +132,7 @@ class Handlebars_Tokenizer
break; break;
case self::IN_TAG_TYPE: case self::IN_TAG_TYPE:
$i += strlen($this->otag) - 1; $i += strlen($this->otag) - 1;
if (isset(self::$_tagTypes[$text[$i + 1]])) { if (isset(self::$_tagTypes[$text[$i + 1]])) {
$tag = $text[$i + 1]; $tag = $text[$i + 1];
@ -157,14 +157,14 @@ class Handlebars_Tokenizer
default: default:
if ($this->tagChange($this->ctag, $text, $i)) { if ($this->tagChange($this->ctag, $text, $i)) {
// Sections (Helpers) can accept parameters // Sections (Helpers) can accept parameters
if ($this->tagType == self::T_SECTION /*|| $this->tagType == self::T_INVERTED*/) { if ($this->tagType == self::T_SECTION) {
$newBuffer = explode(' ', trim($this->buffer), 2); $newBuffer = explode(' ', trim($this->buffer), 2);
$args = ''; $args = '';
if (count($newBuffer) == 2) { if (count($newBuffer) == 2) {
$args = $newBuffer[1]; $args = $newBuffer[1];
} }
$this->buffer = $newBuffer[0]; $this->buffer = $newBuffer[0];
} }
$t = array( $t = array(
self::TYPE => $this->tagType, self::TYPE => $this->tagType,
self::NAME => trim($this->buffer), self::NAME => trim($this->buffer),