diff options
Diffstat (limited to 'inc/lib/Twig/Parser.php')
| -rw-r--r-- | inc/lib/Twig/Parser.php | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/inc/lib/Twig/Parser.php b/inc/lib/Twig/Parser.php deleted file mode 100644 index 6de879a5..00000000 --- a/inc/lib/Twig/Parser.php +++ /dev/null @@ -1,412 +0,0 @@ -<?php - -/* - * This file is part of Twig. - * - * (c) Fabien Potencier - * (c) Armin Ronacher - * - * For the full copyright and license information, please view the LICENSE - * file that was distributed with this source code. - */ - -/** - * Default parser implementation. - * - * @author Fabien Potencier <fabien@symfony.com> - */ -class Twig_Parser implements Twig_ParserInterface -{ - protected $stack = array(); - protected $stream; - protected $parent; - protected $handlers; - protected $visitors; - protected $expressionParser; - protected $blocks; - protected $blockStack; - protected $macros; - protected $env; - protected $reservedMacroNames; - protected $importedSymbols; - protected $traits; - protected $embeddedTemplates = array(); - private $varNameSalt = 0; - - public function __construct(Twig_Environment $env) - { - $this->env = $env; - } - - /** - * @deprecated since 1.27 (to be removed in 2.0) - */ - public function getEnvironment() - { - @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0.', E_USER_DEPRECATED); - - return $this->env; - } - - public function getVarName() - { - return sprintf('__internal_%s', hash('sha256', __METHOD__.$this->stream->getSourceContext()->getCode().$this->varNameSalt++)); - } - - /** - * @deprecated since 1.27 (to be removed in 2.0). Use $parser->getStream()->getSourceContext()->getPath() instead. - */ - public function getFilename() - { - @trigger_error(sprintf('The "%s" method is deprecated since version 1.27 and will be removed in 2.0. Use $parser->getStream()->getSourceContext()->getPath() instead.', __METHOD__), E_USER_DEPRECATED); - - return $this->stream->getSourceContext()->getName(); - } - - public function parse(Twig_TokenStream $stream, $test = null, $dropNeedle = false) - { - // push all variables into the stack to keep the current state of the parser - // using get_object_vars() instead of foreach would lead to https://bugs.php.net/71336 - // This hack can be removed when min version if PHP 7.0 - $vars = array(); - foreach ($this as $k => $v) { - $vars[$k] = $v; - } - - unset($vars['stack'], $vars['env'], $vars['handlers'], $vars['visitors'], $vars['expressionParser'], $vars['reservedMacroNames']); - $this->stack[] = $vars; - - // tag handlers - if (null === $this->handlers) { - $this->handlers = $this->env->getTokenParsers(); - $this->handlers->setParser($this); - } - - // node visitors - if (null === $this->visitors) { - $this->visitors = $this->env->getNodeVisitors(); - } - - if (null === $this->expressionParser) { - $this->expressionParser = new Twig_ExpressionParser($this, $this->env); - } - - $this->stream = $stream; - $this->parent = null; - $this->blocks = array(); - $this->macros = array(); - $this->traits = array(); - $this->blockStack = array(); - $this->importedSymbols = array(array()); - $this->embeddedTemplates = array(); - $this->varNameSalt = 0; - - try { - $body = $this->subparse($test, $dropNeedle); - - if (null !== $this->parent && null === $body = $this->filterBodyNodes($body)) { - $body = new Twig_Node(); - } - } catch (Twig_Error_Syntax $e) { - if (!$e->getSourceContext()) { - $e->setSourceContext($this->stream->getSourceContext()); - } - - if (!$e->getTemplateLine()) { - $e->setTemplateLine($this->stream->getCurrent()->getLine()); - } - - throw $e; - } - - $node = new Twig_Node_Module(new Twig_Node_Body(array($body)), $this->parent, new Twig_Node($this->blocks), new Twig_Node($this->macros), new Twig_Node($this->traits), $this->embeddedTemplates, $stream->getSourceContext()); - - $traverser = new Twig_NodeTraverser($this->env, $this->visitors); - - $node = $traverser->traverse($node); - - // restore previous stack so previous parse() call can resume working - foreach (array_pop($this->stack) as $key => $val) { - $this->$key = $val; - } - - return $node; - } - - public function subparse($test, $dropNeedle = false) - { - $lineno = $this->getCurrentToken()->getLine(); - $rv = array(); - while (!$this->stream->isEOF()) { - switch ($this->getCurrentToken()->getType()) { - case Twig_Token::TEXT_TYPE: - $token = $this->stream->next(); - $rv[] = new Twig_Node_Text($token->getValue(), $token->getLine()); - break; - - case Twig_Token::VAR_START_TYPE: - $token = $this->stream->next(); - $expr = $this->expressionParser->parseExpression(); - $this->stream->expect(Twig_Token::VAR_END_TYPE); - $rv[] = new Twig_Node_Print($expr, $token->getLine()); - break; - - case Twig_Token::BLOCK_START_TYPE: - $this->stream->next(); - $token = $this->getCurrentToken(); - - if (Twig_Token::NAME_TYPE !== $token->getType()) { - throw new Twig_Error_Syntax('A block must start with a tag name.', $token->getLine(), $this->stream->getSourceContext()); - } - - if (null !== $test && call_user_func($test, $token)) { - if ($dropNeedle) { - $this->stream->next(); - } - - if (1 === count($rv)) { - return $rv[0]; - } - - return new Twig_Node($rv, array(), $lineno); - } - - $subparser = $this->handlers->getTokenParser($token->getValue()); - if (null === $subparser) { - if (null !== $test) { - $e = new Twig_Error_Syntax(sprintf('Unexpected "%s" tag', $token->getValue()), $token->getLine(), $this->stream->getSourceContext()); - - if (is_array($test) && isset($test[0]) && $test[0] instanceof Twig_TokenParserInterface) { - $e->appendMessage(sprintf(' (expecting closing tag for the "%s" tag defined near line %s).', $test[0]->getTag(), $lineno)); - } - } else { - $e = new Twig_Error_Syntax(sprintf('Unknown "%s" tag.', $token->getValue()), $token->getLine(), $this->stream->getSourceContext()); - $e->addSuggestions($token->getValue(), array_keys($this->env->getTags())); - } - - throw $e; - } - - $this->stream->next(); - - $node = $subparser->parse($token); - if (null !== $node) { - $rv[] = $node; - } - break; - - default: - throw new Twig_Error_Syntax('Lexer or parser ended up in unsupported state.', $this->getCurrentToken()->getLine(), $this->stream->getSourceContext()); - } - } - - if (1 === count($rv)) { - return $rv[0]; - } - - return new Twig_Node($rv, array(), $lineno); - } - - /** - * @deprecated since 1.27 (to be removed in 2.0) - */ - public function addHandler($name, $class) - { - @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0.', E_USER_DEPRECATED); - - $this->handlers[$name] = $class; - } - - /** - * @deprecated since 1.27 (to be removed in 2.0) - */ - public function addNodeVisitor(Twig_NodeVisitorInterface $visitor) - { - @trigger_error('The '.__METHOD__.' method is deprecated since version 1.27 and will be removed in 2.0.', E_USER_DEPRECATED); - - $this->visitors[] = $visitor; - } - - public function getBlockStack() - { - return $this->blockStack; - } - - public function peekBlockStack() - { - return $this->blockStack[count($this->blockStack) - 1]; - } - - public function popBlockStack() - { - array_pop($this->blockStack); - } - - public function pushBlockStack($name) - { - $this->blockStack[] = $name; - } - - public function hasBlock($name) - { - return isset($this->blocks[$name]); - } - - public function getBlock($name) - { - return $this->blocks[$name]; - } - - public function setBlock($name, Twig_Node_Block $value) - { - $this->blocks[$name] = new Twig_Node_Body(array($value), array(), $value->getTemplateLine()); - } - - public function hasMacro($name) - { - return isset($this->macros[$name]); - } - - public function setMacro($name, Twig_Node_Macro $node) - { - if ($this->isReservedMacroName($name)) { - throw new Twig_Error_Syntax(sprintf('"%s" cannot be used as a macro name as it is a reserved keyword.', $name), $node->getTemplateLine(), $this->stream->getSourceContext()); - } - - $this->macros[$name] = $node; - } - - public function isReservedMacroName($name) - { - if (null === $this->reservedMacroNames) { - $this->reservedMacroNames = array(); - $r = new ReflectionClass($this->env->getBaseTemplateClass()); - foreach ($r->getMethods() as $method) { - $methodName = strtolower($method->getName()); - - if ('get' === substr($methodName, 0, 3) && isset($methodName[3])) { - $this->reservedMacroNames[] = substr($methodName, 3); - } - } - } - - return in_array(strtolower($name), $this->reservedMacroNames); - } - - public function addTrait($trait) - { - $this->traits[] = $trait; - } - - public function hasTraits() - { - return count($this->traits) > 0; - } - - public function embedTemplate(Twig_Node_Module $template) - { - $template->setIndex(mt_rand()); - - $this->embeddedTemplates[] = $template; - } - - public function addImportedSymbol($type, $alias, $name = null, Twig_Node_Expression $node = null) - { - $this->importedSymbols[0][$type][$alias] = array('name' => $name, 'node' => $node); - } - - public function getImportedSymbol($type, $alias) - { - foreach ($this->importedSymbols as $functions) { - if (isset($functions[$type][$alias])) { - return $functions[$type][$alias]; - } - } - } - - public function isMainScope() - { - return 1 === count($this->importedSymbols); - } - - public function pushLocalScope() - { - array_unshift($this->importedSymbols, array()); - } - - public function popLocalScope() - { - array_shift($this->importedSymbols); - } - - /** - * @return Twig_ExpressionParser - */ - public function getExpressionParser() - { - return $this->expressionParser; - } - - public function getParent() - { - return $this->parent; - } - - public function setParent($parent) - { - $this->parent = $parent; - } - - /** - * @return Twig_TokenStream - */ - public function getStream() - { - return $this->stream; - } - - /** - * @return Twig_Token - */ - public function getCurrentToken() - { - return $this->stream->getCurrent(); - } - - protected function filterBodyNodes(Twig_NodeInterface $node) - { - // check that the body does not contain non-empty output nodes - if ( - ($node instanceof Twig_Node_Text && !ctype_space($node->getAttribute('data'))) - || - (!$node instanceof Twig_Node_Text && !$node instanceof Twig_Node_BlockReference && $node instanceof Twig_NodeOutputInterface) - ) { - if (false !== strpos((string) $node, chr(0xEF).chr(0xBB).chr(0xBF))) { - throw new Twig_Error_Syntax('A template that extends another one cannot start with a byte order mark (BOM); it must be removed.', $node->getTemplateLine(), $this->stream->getSourceContext()); - } - - throw new Twig_Error_Syntax('A template that extends another one cannot include content outside Twig blocks. Did you forget to put the content inside a {% block %} tag?', $node->getTemplateLine(), $this->stream->getSourceContext()); - } - - // bypass nodes that will "capture" the output - if ($node instanceof Twig_NodeCaptureInterface) { - return $node; - } - - if ($node instanceof Twig_NodeOutputInterface) { - return; - } - - foreach ($node as $k => $n) { - if (null !== $n && null === $this->filterBodyNodes($n)) { - $node->removeNode($k); - } - } - - return $node; - } -} - -class_alias('Twig_Parser', 'Twig\Parser', false); -class_exists('Twig_Node'); -class_exists('Twig_TokenStream'); |
