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Code Issues Releases Wiki Activity

[feature/twig] WIP extension/lexer/some tokenparsers/nodes

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PHPBB3-11598
This commit is contained in:
Nathan Guse
2013-06-09 22:09:00 -05:00
parent 7ea0019a71
commit 1da4be04b0
7 changed files with 395 additions and 0 deletions
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45
phpBB/includes/template/twig/extension.php Normal file
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<?php
/**
*
* @package phpBB3
* @copyright (c) 2013 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
class phpbb_template_twig_extension extends Twig_Extension
{
public function getName()
{
return 'phpbb';
}
public function getTokenParsers()
{
return array(
new phpbb_template_twig_tokenparser_if,
new phpbb_template_twig_tokenparser_include,
new phpbb_template_twig_tokenparser_event,
new phpbb_template_twig_tokenparser_begin,
);
}
public function getOperators()
{
return array(
array(),
array(
'eq' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Equal', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
'!==' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
),
);
}
}

42
phpBB/includes/template/twig/lexer.php Normal file
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<?php
/**
*
* @package phpBB3
* @copyright (c) 2013 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
class phpbb_template_twig_lexer extends Twig_Lexer
{
protected function lexExpression()
{
/**
* This is some compatibility code to continue supporting expressions such as:
* <!-- IF .blah -->
*
* This does not seem very efficient, but I have not been able to find a better
* method which works properly (maybe lexData can do it better, @todo test this)
*/
$last_element = end($this->tokens);
if ($last_element->getValue() === '.')
{
$last_element2 = prev($this->tokens);
if ($last_element2->getValue() === 'IF')
{
array_pop($this->tokens);
}
}
parent::lexExpression();
}
}

77
phpBB/includes/template/twig/node/begin.php Normal file
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<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
* (c) 2009 Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Represents a for node.
*
* @package twig
* @author Fabien Potencier <fabien.potencier@symfony-project.com>
*/
class phpbb_template_twig_node_begin extends Twig_Node
{
public function __construct($beginName, Twig_NodeInterface $body, Twig_NodeInterface $else = null, $lineno, $tag = null)
{
parent::__construct(array('body' => $body, 'else' => $else), array('beginName' => $beginName), $lineno, $tag);
}
/**
* Compiles the node to PHP.
*
* @param Twig_Compiler A Twig_Compiler instance
*/
public function compile(Twig_Compiler $compiler)
{
$compiler
->write("if (!isset(\$blocks)) {\n")
->indent()
->write("\$blocks = array();")
->write("\$nestingLevel = 0;")
->outdent()
->write("}\n")
->write("\$blocks[\$nestingLevel] = array();\n")
;
if (null !== $this->getNode('else')) {
$compiler->write("\$blocks[\$nestingLevel]['iterated'] = false;\n");
}
$compiler
->write("foreach (\$context['_phpbb_blocks']['")
->write($this->getAttribute('beginName'))
->write("'] as \$blocks[\$nestingLevel]['i'] => \$blocks[\$nestingLevel]['values']) {")
->indent()
;
$compiler->subcompile($this->getNode('body'));
if (null !== $this->getNode('else')) {
$compiler->write("\$blocks[\$nestingLevel]['iterated'] = true;\n");
}
$compiler
->outdent()
->write("}\n")
;
if (null !== $this->getNode('else')) {
$compiler
->write("if (!\$blocks[\$nestingLevel]['iterated']) {\n")
->indent()
->subcompile($this->getNode('else'))
->outdent()
->write("}\n")
;
}
$compiler->write("\$nestingLevel--;\n");
}
}

71
phpBB/includes/template/twig/tokenparser/begin.php Normal file
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<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
* (c) 2009 Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Loops over each item of a sequence.
*
* <pre>
* <ul>
* {% for user in users %}
* <li>{{ user.username|e }}</li>
* {% endfor %}
* </ul>
* </pre>
*/
class phpbb_template_twig_tokenparser_begin extends Twig_TokenParser_For
{
/**
* Parses a token and returns a node.
*
* @param Twig_Token $token A Twig_Token instance
*
* @return Twig_NodeInterface A Twig_NodeInterface instance
*/
public function parse(Twig_Token $token)
{
$lineno = $token->getLine();
$beginName = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE)->getValue();
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
$body = $this->parser->subparse(array($this, 'decideBeginFork'));
if ($this->parser->getStream()->next()->getValue() == 'ELSE') {
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
$else = $this->parser->subparse(array($this, 'decideBeginEnd'), true);
} else {
$else = null;
}
$this->parser->getStream()->expect(Twig_Token::NAME_TYPE, $beginName);
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
return new phpbb_template_twig_node_begin($beginName, $body, $else, $lineno, $this->getTag());
}
public function decideBeginFork(Twig_Token $token)
{
return $token->test(array('BEGINELSE', 'END'));
}
public function decideForEnd(Twig_Token $token)
{
return $token->test('END');
}
/**
* Gets the tag name associated with this token parser.
*
* @return string The tag name
*/
public function getTag()
{
return 'BEGIN';
}
}

33
phpBB/includes/template/twig/tokenparser/event.php Normal file
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<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
* (c) 2009 Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Includes a template.
*
* <pre>
* {% include 'header.html' %}
* Body
* {% include 'footer.html' %}
* </pre>
*/
class phpbb_template_twig_tokenparser_event extends Twig_TokenParser_Include
{
/**
* Gets the tag name associated with this token parser.
*
* @return string The tag name
*/
public function getTag()
{
return 'EVENT';
}
}

94
phpBB/includes/template/twig/tokenparser/if.php Normal file
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<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
* (c) 2009 Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Tests a condition.
*
* <pre>
* {% if users %}
* <ul>
* {% for user in users %}
* <li>{{ user.username|e }}</li>
* {% endfor %}
* </ul>
* {% endif %}
* </pre>
*/
class phpbb_template_twig_tokenparser_if extends Twig_TokenParser_If
{
/**
* Parses a token and returns a node.
*
* @param Twig_Token $token A Twig_Token instance
*
* @return Twig_NodeInterface A Twig_NodeInterface instance
*/
public function parse(Twig_Token $token)
{
$lineno = $token->getLine();
$expr = $this->parser->getExpressionParser()->parseExpression();
$stream = $this->parser->getStream();
$stream->expect(Twig_Token::BLOCK_END_TYPE);
$body = $this->parser->subparse(array($this, 'decideIfFork'));
$tests = array($expr, $body);
$else = null;
$end = false;
while (!$end) {
switch ($stream->next()->getValue()) {
case 'ELSE':
$stream->expect(Twig_Token::BLOCK_END_TYPE);
$else = $this->parser->subparse(array($this, 'decideIfEnd'));
break;
case 'ELSEIF':
$expr = $this->parser->getExpressionParser()->parseExpression();
$stream->expect(Twig_Token::BLOCK_END_TYPE);
$body = $this->parser->subparse(array($this, 'decideIfFork'));
$tests[] = $expr;
$tests[] = $body;
break;
case 'ENDIF':
$end = true;
break;
default:
throw new Twig_Error_Syntax(sprintf('Unexpected end of template. Twig was looking for the following tags "ELSE", "ELSEIF", or "ENDIF" to close the "IF" block started at line %d)', $lineno), $stream->getCurrent()->getLine(), $stream->getFilename());
}
}
$stream->expect(Twig_Token::BLOCK_END_TYPE);
return new Twig_Node_If(new Twig_Node($tests), $else, $lineno, $this->getTag());
}
public function decideIfFork(Twig_Token $token)
{
return $token->test(array('ELSEIF', 'ELSE', 'ENDIF'));
}
public function decideIfEnd(Twig_Token $token)
{
return $token->test(array('ENDIF'));
}
/**
* Gets the tag name associated with this token parser.
*
* @return string The tag name
*/
public function getTag()
{
return 'IF';
}
}

33
phpBB/includes/template/twig/tokenparser/include.php Normal file
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<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
* (c) 2009 Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Includes a template.
*
* <pre>
* {% include 'header.html' %}
* Body
* {% include 'footer.html' %}
* </pre>
*/
class phpbb_template_twig_tokenparser_include extends Twig_TokenParser_Include
{
/**
* Gets the tag name associated with this token parser.
*
* @return string The tag name
*/
public function getTag()
{
return 'INCLUDE';
}
}