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[feature/twig] Replace phpBB template code with Twig syntax, then parse w/Twig

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Fixing begin token/node, adding includejs token/node

PHPBB3-11598
This commit is contained in:
Nathan Guse 2013-06-10 11:17:11 -05:00
parent b775f67128
commit 15114067e6
6 changed files with 146 additions and 67 deletions
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6
phpBB/includes/template/twig/extension.php
View File

@ -26,10 +26,11 @@ class phpbb_template_twig_extension extends Twig_Extension
{
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,
new phpbb_template_twig_tokenparser_define,
new phpbb_template_twig_tokenparser_include,
new phpbb_template_twig_tokenparser_includejs,
new phpbb_template_twig_tokenparser_event,
);
}
@ -39,7 +40,6 @@ class phpbb_template_twig_extension extends Twig_Extension
array(),
array(
'eq' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Equal', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
//'and' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_And', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
'!==' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
),
);

85
phpBB/includes/template/twig/lexer.php
View File

@ -17,62 +17,41 @@ if (!defined('IN_PHPBB'))
class phpbb_template_twig_lexer extends Twig_Lexer
{
protected function lexExpression()
public function tokenize($code, $filename = null)
{
var_dump(substr($this->code, $this->cursor, 40), $this->states);
parent::lexExpression();
// Last element parsed
$last_element = end($this->tokens);
$valid_starting_tokens = array(
'BEGIN',
'BEGINELSE',
'END',
'IF',
'ELSE',
'ELSEIF',
'ENDIF',
'DEFINE',
'DEFINE',
'UNDEFINE',
'ENDDEFINE',
/*'INCLUDE',
'INCLUDEPHP',
'INCLUDEJS',*/
'PHP',
'ENDPHP',
'EVENT',
);
/**
* Check for old fashioned INCLUDE statements without enclosed quotes
*/
if ($last_element->getValue() === 'INCLUDE')
{
if (preg_match('#^\s*([a-zA-Z0-9_]+\.[a-zA-Z0-9]+)#', substr($this->code, $this->cursor), $match))
{
$this->pushToken(Twig_Token::STRING_TYPE, stripcslashes($match[1]));
$this->moveCursor($match[0]);
}
}
// Replace <!-- INCLUDE blah.html --> with {% include 'blah.html' %}
$code = preg_replace('#<!-- INCLUDE(PHP|JS)? (.*?) -->#', "{% INCLUDE$1 '$2' %}", $code);
/**
* This is some compatibility code to continue supporting expressions such as:
* <!-- IF .blah -->
*/
if ($last_element->getValue() === 'IF')
{
if (preg_match('#^\s*(not\s)?\.([a-zA-Z0-9_\.]+)#', substr($this->code, $this->cursor), $match))
{
$this->pushToken(Twig_Token::STRING_TYPE, stripcslashes($match[1]));
$this->moveCursor($match[0]);
}
}
/**
* This is some compatibility code to continue supporting expressions such as:
* <!-- DEFINE $VAR = 'foo' -->
*/
if ($last_element->getValue() === 'DEFINE')
{
if (preg_match('#^\s*\$([A-Z0-9]+)#', substr($this->code, $this->cursor), $match))
{
$this->pushToken(Twig_Token::STRING_TYPE, stripcslashes($match[1]));
$this->moveCursor($match[1]);
}
}
// Replace all of our starting tokens, <!-- TOKEN --> with Twig style, {% TOKEN %}
// This also strips the $ inside of a tag directly after the token, which was used in <!-- DEFINE $NAME
// This also strips the . inside of a tag directly after the token, which was used in <!-- IF .blah
// This also strips outer parenthesis, <!-- IF (blah) --> becomes <!-- IF blah -->
$code = preg_replace('#<!-- (' . implode('|', $valid_starting_tokens) . ') (not )?(\$|\.)?(?:(.*?) ?)?-->#', '{% $1 $2$4 %}', $code);
/**
* Check for old fashioned INCLUDE statements without enclosed quotes
*/
if ($last_element->getValue() === 'INCLUDE')
{
if (preg_match('#^\s*([a-zA-Z0-9_]+\.[a-zA-Z0-9]+)#', substr($this->code, $this->cursor), $match))
{
$this->pushToken(Twig_Token::STRING_TYPE, stripcslashes($match[1]));
$this->moveCursor($match[0]);
}
}
// Replace all of our variables, {VARNAME} or {$VARNAME}, with Twig style, {{ VARNAME }}
$code = preg_replace('#{\$?([A-Z_][A-Z_0-9]+)}#', '{{ $1 }}', $code);
//echo $code;
//exit;
return parent::tokenize($code, $filename);
}
}

19
phpBB/includes/template/twig/node/begin.php
View File

@ -31,40 +31,41 @@ class phpbb_template_twig_node_begin extends Twig_Node
public function compile(Twig_Compiler $compiler)
{
$compiler
->write("if (!isset(\$blocks)) {\n")
->write("if (!isset(\$loops)) {\n")
->indent()
->write("\$blocks = array();")
->write("\$loops = array();")
->write("\$nestingLevel = 0;")
->outdent()
->write("}\n")
->write("\$blocks[\$nestingLevel] = array();\n")
->write("\$loops[\$nestingLevel] = array();\n")
;
if (null !== $this->getNode('else')) {
$compiler->write("\$blocks[\$nestingLevel]['iterated'] = false;\n");
$compiler->write("\$loops[\$nestingLevel]['iterated'] = false;\n");
}
$compiler
->write("foreach (\$context['_phpbb_blocks']['")
->write("if (isset(\$context['loop'])) {")
->write("foreach (\$context['loop']['")
->write($this->getAttribute('beginName'))
->write("'] as \$blocks[\$nestingLevel]['i'] => \$blocks[\$nestingLevel]['values']) {")
->write("'] as \$loops[\$nestingLevel]['i'] => \$loops[\$nestingLevel]['values']) {")
->indent()
;
$compiler->subcompile($this->getNode('body'));
if (null !== $this->getNode('else')) {
$compiler->write("\$blocks[\$nestingLevel]['iterated'] = true;\n");
$compiler->write("\$loops[\$nestingLevel]['iterated'] = true;\n");
}
$compiler
->outdent()
->write("}\n")
->write("}}\n")
;
if (null !== $this->getNode('else')) {
$compiler
->write("if (!\$blocks[\$nestingLevel]['iterated']) {\n")
->write("if (!\$loops[\$nestingLevel]['iterated']) {\n")
->indent()
->subcompile($this->getNode('else'))
->outdent()

50
phpBB/includes/template/twig/node/includejs.php Normal file
View File

@ -0,0 +1,50 @@
<?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 an include node.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class phpbb_template_twig_node_includejs extends Twig_Node_Include
{
/**
* Compiles the node to PHP.
*
* @param Twig_Compiler A Twig_Compiler instance
*/
public function compile(Twig_Compiler $compiler)
{
$compiler->addDebugInfo($this);
$compiler
->write("try {\n")
->indent()
;
$this->addGetTemplate($compiler);
$compiler->raw('->display(');
$this->addTemplateArguments($compiler);
$compiler->raw(");\n");
$compiler
->write("} catch (Twig_Error_Loader \$e) {\n")
->indent()
->write("// ignore missing template\n")
->outdent()
->write("}\n\n")
;
}
}

4
phpBB/includes/template/twig/tokenparser/begin.php
View File

@ -37,7 +37,7 @@ class phpbb_template_twig_tokenparser_begin extends Twig_TokenParser_For
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
$body = $this->parser->subparse(array($this, 'decideBeginFork'));
if ($this->parser->getStream()->next()->getValue() == 'ELSE') {
if ($this->parser->getStream()->next()->getValue() == 'BEGINELSE') {
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
$else = $this->parser->subparse(array($this, 'decideBeginEnd'), true);
} else {
@ -54,7 +54,7 @@ class phpbb_template_twig_tokenparser_begin extends Twig_TokenParser_For
return $token->test(array('BEGINELSE', 'END'));
}
public function decideForEnd(Twig_Token $token)
public function decideBeginEnd(Twig_Token $token)
{
return $token->test('END');
}

49
phpBB/includes/template/twig/tokenparser/includejs.php Normal file
View File

@ -0,0 +1,49 @@
<?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_includejs extends Twig_TokenParser_Include
{
/**
* 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)
{
$expr = $this->parser->getExpressionParser()->parseExpression();
list($variables, $only, $ignoreMissing) = $this->parseArguments();
return new phpbb_template_twig_node_includejs($expr, $variables, $only, $ignoreMissing, $token->getLine(), $this->getTag());
}
/**
* Gets the tag name associated with this token parser.
*
* @return string The tag name
*/
public function getTag()
{
return 'INCLUDEJS';
}
}