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Posted to commits@logging.apache.org by ih...@apache.org on 2012/05/22 16:42:31 UTC
svn commit: r1341499 [2/7] - in
/logging/site/branches/experimental-twig-textile: ./ libs/Twig/
libs/Twig/lib/ libs/Twig/lib/Twig/ libs/Twig/lib/Twig/Error/
libs/Twig/lib/Twig/Extension/ libs/Twig/lib/Twig/Filter/
libs/Twig/lib/Twig/Function/ libs/Twig...
Added: logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Environment.php
URL: http://svn.apache.org/viewvc/logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Environment.php?rev=1341499&view=auto
==============================================================================
--- logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Environment.php (added)
+++ logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Environment.php Tue May 22 14:42:25 2012
@@ -0,0 +1,1106 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Stores the Twig configuration.
+ *
+ * @package twig
+ * @author Fabien Potencier <fa...@symfony.com>
+ */
+class Twig_Environment
+{
+ const VERSION = '1.8.1';
+
+ protected $charset;
+ protected $loader;
+ protected $debug;
+ protected $autoReload;
+ protected $cache;
+ protected $lexer;
+ protected $parser;
+ protected $compiler;
+ protected $baseTemplateClass;
+ protected $extensions;
+ protected $parsers;
+ protected $visitors;
+ protected $filters;
+ protected $tests;
+ protected $functions;
+ protected $globals;
+ protected $runtimeInitialized;
+ protected $loadedTemplates;
+ protected $strictVariables;
+ protected $unaryOperators;
+ protected $binaryOperators;
+ protected $templateClassPrefix = '__TwigTemplate_';
+ protected $functionCallbacks;
+ protected $filterCallbacks;
+ protected $staging;
+
+ /**
+ * Constructor.
+ *
+ * Available options:
+ *
+ * * debug: When set to `true`, the generated templates have a __toString()
+ * method that you can use to display the generated nodes (default to
+ * false).
+ *
+ * * charset: The charset used by the templates (default to utf-8).
+ *
+ * * base_template_class: The base template class to use for generated
+ * templates (default to Twig_Template).
+ *
+ * * cache: An absolute path where to store the compiled templates, or
+ * false to disable compilation cache (default).
+ *
+ * * auto_reload: Whether to reload the template is the original source changed.
+ * If you don't provide the auto_reload option, it will be
+ * determined automatically base on the debug value.
+ *
+ * * strict_variables: Whether to ignore invalid variables in templates
+ * (default to false).
+ *
+ * * autoescape: Whether to enable auto-escaping (default to html):
+ * * false: disable auto-escaping
+ * * true: equivalent to html
+ * * html, js: set the autoescaping to one of the supported strategies
+ * * PHP callback: a PHP callback that returns an escaping strategy based on the template "filename"
+ *
+ * * optimizations: A flag that indicates which optimizations to apply
+ * (default to -1 which means that all optimizations are enabled;
+ * set it to 0 to disable).
+ *
+ * @param Twig_LoaderInterface $loader A Twig_LoaderInterface instance
+ * @param array $options An array of options
+ */
+ public function __construct(Twig_LoaderInterface $loader = null, $options = array())
+ {
+ if (null !== $loader) {
+ $this->setLoader($loader);
+ }
+
+ $options = array_merge(array(
+ 'debug' => false,
+ 'charset' => 'UTF-8',
+ 'base_template_class' => 'Twig_Template',
+ 'strict_variables' => false,
+ 'autoescape' => 'html',
+ 'cache' => false,
+ 'auto_reload' => null,
+ 'optimizations' => -1,
+ ), $options);
+
+ $this->debug = (bool) $options['debug'];
+ $this->charset = $options['charset'];
+ $this->baseTemplateClass = $options['base_template_class'];
+ $this->autoReload = null === $options['auto_reload'] ? $this->debug : (bool) $options['auto_reload'];
+ $this->extensions = array(
+ 'core' => new Twig_Extension_Core(),
+ 'escaper' => new Twig_Extension_Escaper($options['autoescape']),
+ 'optimizer' => new Twig_Extension_Optimizer($options['optimizations']),
+ );
+ $this->strictVariables = (bool) $options['strict_variables'];
+ $this->runtimeInitialized = false;
+ $this->setCache($options['cache']);
+ $this->functionCallbacks = array();
+ $this->filterCallbacks = array();
+ $this->staging = array(
+ 'functions' => array(),
+ 'filters' => array(),
+ 'tests' => array(),
+ 'token_parsers' => array(),
+ 'visitors' => array(),
+ 'globals' => array(),
+ );
+ }
+
+ /**
+ * Gets the base template class for compiled templates.
+ *
+ * @return string The base template class name
+ */
+ public function getBaseTemplateClass()
+ {
+ return $this->baseTemplateClass;
+ }
+
+ /**
+ * Sets the base template class for compiled templates.
+ *
+ * @param string $class The base template class name
+ */
+ public function setBaseTemplateClass($class)
+ {
+ $this->baseTemplateClass = $class;
+ }
+
+ /**
+ * Enables debugging mode.
+ */
+ public function enableDebug()
+ {
+ $this->debug = true;
+ }
+
+ /**
+ * Disables debugging mode.
+ */
+ public function disableDebug()
+ {
+ $this->debug = false;
+ }
+
+ /**
+ * Checks if debug mode is enabled.
+ *
+ * @return Boolean true if debug mode is enabled, false otherwise
+ */
+ public function isDebug()
+ {
+ return $this->debug;
+ }
+
+ /**
+ * Enables the auto_reload option.
+ */
+ public function enableAutoReload()
+ {
+ $this->autoReload = true;
+ }
+
+ /**
+ * Disables the auto_reload option.
+ */
+ public function disableAutoReload()
+ {
+ $this->autoReload = false;
+ }
+
+ /**
+ * Checks if the auto_reload option is enabled.
+ *
+ * @return Boolean true if auto_reload is enabled, false otherwise
+ */
+ public function isAutoReload()
+ {
+ return $this->autoReload;
+ }
+
+ /**
+ * Enables the strict_variables option.
+ */
+ public function enableStrictVariables()
+ {
+ $this->strictVariables = true;
+ }
+
+ /**
+ * Disables the strict_variables option.
+ */
+ public function disableStrictVariables()
+ {
+ $this->strictVariables = false;
+ }
+
+ /**
+ * Checks if the strict_variables option is enabled.
+ *
+ * @return Boolean true if strict_variables is enabled, false otherwise
+ */
+ public function isStrictVariables()
+ {
+ return $this->strictVariables;
+ }
+
+ /**
+ * Gets the cache directory or false if cache is disabled.
+ *
+ * @return string|false
+ */
+ public function getCache()
+ {
+ return $this->cache;
+ }
+
+ /**
+ * Sets the cache directory or false if cache is disabled.
+ *
+ * @param string|false $cache The absolute path to the compiled templates,
+ * or false to disable cache
+ */
+ public function setCache($cache)
+ {
+ $this->cache = $cache ? $cache : false;
+ }
+
+ /**
+ * Gets the cache filename for a given template.
+ *
+ * @param string $name The template name
+ *
+ * @return string The cache file name
+ */
+ public function getCacheFilename($name)
+ {
+ if (false === $this->cache) {
+ return false;
+ }
+
+ $class = substr($this->getTemplateClass($name), strlen($this->templateClassPrefix));
+
+ return $this->getCache().'/'.substr($class, 0, 2).'/'.substr($class, 2, 2).'/'.substr($class, 4).'.php';
+ }
+
+ /**
+ * Gets the template class associated with the given string.
+ *
+ * @param string $name The name for which to calculate the template class name
+ * @param integer $index The index if it is an embedded template
+ *
+ * @return string The template class name
+ */
+ public function getTemplateClass($name, $index = null)
+ {
+ return $this->templateClassPrefix.md5($this->loader->getCacheKey($name)).(null === $index ? '' : '_'.$index);
+ }
+
+ /**
+ * Gets the template class prefix.
+ *
+ * @return string The template class prefix
+ */
+ public function getTemplateClassPrefix()
+ {
+ return $this->templateClassPrefix;
+ }
+
+ /**
+ * Renders a template.
+ *
+ * @param string $name The template name
+ * @param array $context An array of parameters to pass to the template
+ *
+ * @return string The rendered template
+ */
+ public function render($name, array $context = array())
+ {
+ return $this->loadTemplate($name)->render($context);
+ }
+
+ /**
+ * Displays a template.
+ *
+ * @param string $name The template name
+ * @param array $context An array of parameters to pass to the template
+ */
+ public function display($name, array $context = array())
+ {
+ $this->loadTemplate($name)->display($context);
+ }
+
+ /**
+ * Loads a template by name.
+ *
+ * @param string $name The template name
+ * @param integer $index The index if it is an embedded template
+ *
+ * @return Twig_TemplateInterface A template instance representing the given template name
+ */
+ public function loadTemplate($name, $index = null)
+ {
+ $cls = $this->getTemplateClass($name, $index);
+
+ if (isset($this->loadedTemplates[$cls])) {
+ return $this->loadedTemplates[$cls];
+ }
+
+ if (!class_exists($cls, false)) {
+ if (false === $cache = $this->getCacheFilename($name)) {
+ eval('?>'.$this->compileSource($this->loader->getSource($name), $name));
+ } else {
+ if (!is_file($cache) || ($this->isAutoReload() && !$this->isTemplateFresh($name, filemtime($cache)))) {
+ $this->writeCacheFile($cache, $this->compileSource($this->loader->getSource($name), $name));
+ }
+
+ require_once $cache;
+ }
+ }
+
+ if (!$this->runtimeInitialized) {
+ $this->initRuntime();
+ }
+
+ return $this->loadedTemplates[$cls] = new $cls($this);
+ }
+
+ /**
+ * Returns true if the template is still fresh.
+ *
+ * Besides checking the loader for freshness information,
+ * this method also checks if the enabled extensions have
+ * not changed.
+ *
+ * @param string $name The template name
+ * @param timestamp $time The last modification time of the cached template
+ *
+ * @return Boolean true if the template is fresh, false otherwise
+ */
+ public function isTemplateFresh($name, $time)
+ {
+ foreach ($this->extensions as $extension) {
+ $r = new ReflectionObject($extension);
+ if (filemtime($r->getFileName()) > $time) {
+ return false;
+ }
+ }
+
+ return $this->loader->isFresh($name, $time);
+ }
+
+ public function resolveTemplate($names)
+ {
+ if (!is_array($names)) {
+ $names = array($names);
+ }
+
+ foreach ($names as $name) {
+ if ($name instanceof Twig_Template) {
+ return $name;
+ }
+
+ try {
+ return $this->loadTemplate($name);
+ } catch (Twig_Error_Loader $e) {
+ }
+ }
+
+ if (1 === count($names)) {
+ throw $e;
+ }
+
+ throw new Twig_Error_Loader(sprintf('Unable to find one of the following templates: "%s".', implode('", "', $names)));
+ }
+
+ /**
+ * Clears the internal template cache.
+ */
+ public function clearTemplateCache()
+ {
+ $this->loadedTemplates = array();
+ }
+
+ /**
+ * Clears the template cache files on the filesystem.
+ */
+ public function clearCacheFiles()
+ {
+ if (false === $this->cache) {
+ return;
+ }
+
+ foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->cache), RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
+ if ($file->isFile()) {
+ @unlink($file->getPathname());
+ }
+ }
+ }
+
+ /**
+ * Gets the Lexer instance.
+ *
+ * @return Twig_LexerInterface A Twig_LexerInterface instance
+ */
+ public function getLexer()
+ {
+ if (null === $this->lexer) {
+ $this->lexer = new Twig_Lexer($this);
+ }
+
+ return $this->lexer;
+ }
+
+ /**
+ * Sets the Lexer instance.
+ *
+ * @param Twig_LexerInterface A Twig_LexerInterface instance
+ */
+ public function setLexer(Twig_LexerInterface $lexer)
+ {
+ $this->lexer = $lexer;
+ }
+
+ /**
+ * Tokenizes a source code.
+ *
+ * @param string $source The template source code
+ * @param string $name The template name
+ *
+ * @return Twig_TokenStream A Twig_TokenStream instance
+ */
+ public function tokenize($source, $name = null)
+ {
+ return $this->getLexer()->tokenize($source, $name);
+ }
+
+ /**
+ * Gets the Parser instance.
+ *
+ * @return Twig_ParserInterface A Twig_ParserInterface instance
+ */
+ public function getParser()
+ {
+ if (null === $this->parser) {
+ $this->parser = new Twig_Parser($this);
+ }
+
+ return $this->parser;
+ }
+
+ /**
+ * Sets the Parser instance.
+ *
+ * @param Twig_ParserInterface A Twig_ParserInterface instance
+ */
+ public function setParser(Twig_ParserInterface $parser)
+ {
+ $this->parser = $parser;
+ }
+
+ /**
+ * Parses a token stream.
+ *
+ * @param Twig_TokenStream $tokens A Twig_TokenStream instance
+ *
+ * @return Twig_Node_Module A Node tree
+ */
+ public function parse(Twig_TokenStream $tokens)
+ {
+ return $this->getParser()->parse($tokens);
+ }
+
+ /**
+ * Gets the Compiler instance.
+ *
+ * @return Twig_CompilerInterface A Twig_CompilerInterface instance
+ */
+ public function getCompiler()
+ {
+ if (null === $this->compiler) {
+ $this->compiler = new Twig_Compiler($this);
+ }
+
+ return $this->compiler;
+ }
+
+ /**
+ * Sets the Compiler instance.
+ *
+ * @param Twig_CompilerInterface $compiler A Twig_CompilerInterface instance
+ */
+ public function setCompiler(Twig_CompilerInterface $compiler)
+ {
+ $this->compiler = $compiler;
+ }
+
+ /**
+ * Compiles a Node.
+ *
+ * @param Twig_NodeInterface $node A Twig_NodeInterface instance
+ *
+ * @return string The compiled PHP source code
+ */
+ public function compile(Twig_NodeInterface $node)
+ {
+ return $this->getCompiler()->compile($node)->getSource();
+ }
+
+ /**
+ * Compiles a template source code.
+ *
+ * @param string $source The template source code
+ * @param string $name The template name
+ *
+ * @return string The compiled PHP source code
+ */
+ public function compileSource($source, $name = null)
+ {
+ try {
+ return $this->compile($this->parse($this->tokenize($source, $name)));
+ } catch (Twig_Error $e) {
+ $e->setTemplateFile($name);
+ throw $e;
+ } catch (Exception $e) {
+ throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the compilation of a template ("%s").', $e->getMessage()), -1, $name, $e);
+ }
+ }
+
+ /**
+ * Sets the Loader instance.
+ *
+ * @param Twig_LoaderInterface $loader A Twig_LoaderInterface instance
+ */
+ public function setLoader(Twig_LoaderInterface $loader)
+ {
+ $this->loader = $loader;
+ }
+
+ /**
+ * Gets the Loader instance.
+ *
+ * @return Twig_LoaderInterface A Twig_LoaderInterface instance
+ */
+ public function getLoader()
+ {
+ return $this->loader;
+ }
+
+ /**
+ * Sets the default template charset.
+ *
+ * @param string $charset The default charset
+ */
+ public function setCharset($charset)
+ {
+ $this->charset = $charset;
+ }
+
+ /**
+ * Gets the default template charset.
+ *
+ * @return string The default charset
+ */
+ public function getCharset()
+ {
+ return $this->charset;
+ }
+
+ /**
+ * Initializes the runtime environment.
+ */
+ public function initRuntime()
+ {
+ $this->runtimeInitialized = true;
+
+ foreach ($this->getExtensions() as $extension) {
+ $extension->initRuntime($this);
+ }
+ }
+
+ /**
+ * Returns true if the given extension is registered.
+ *
+ * @param string $name The extension name
+ *
+ * @return Boolean Whether the extension is registered or not
+ */
+ public function hasExtension($name)
+ {
+ return isset($this->extensions[$name]);
+ }
+
+ /**
+ * Gets an extension by name.
+ *
+ * @param string $name The extension name
+ *
+ * @return Twig_ExtensionInterface A Twig_ExtensionInterface instance
+ */
+ public function getExtension($name)
+ {
+ if (!isset($this->extensions[$name])) {
+ throw new Twig_Error_Runtime(sprintf('The "%s" extension is not enabled.', $name));
+ }
+
+ return $this->extensions[$name];
+ }
+
+ /**
+ * Registers an extension.
+ *
+ * @param Twig_ExtensionInterface $extension A Twig_ExtensionInterface instance
+ */
+ public function addExtension(Twig_ExtensionInterface $extension)
+ {
+ $this->extensions[$extension->getName()] = $extension;
+ $this->parsers = null;
+ $this->visitors = null;
+ $this->filters = null;
+ $this->tests = null;
+ $this->functions = null;
+ $this->globals = null;
+ }
+
+ /**
+ * Removes an extension by name.
+ *
+ * @param string $name The extension name
+ */
+ public function removeExtension($name)
+ {
+ unset($this->extensions[$name]);
+ $this->parsers = null;
+ $this->visitors = null;
+ $this->filters = null;
+ $this->tests = null;
+ $this->functions = null;
+ $this->globals = null;
+ }
+
+ /**
+ * Registers an array of extensions.
+ *
+ * @param array $extensions An array of extensions
+ */
+ public function setExtensions(array $extensions)
+ {
+ foreach ($extensions as $extension) {
+ $this->addExtension($extension);
+ }
+ }
+
+ /**
+ * Returns all registered extensions.
+ *
+ * @return array An array of extensions
+ */
+ public function getExtensions()
+ {
+ return $this->extensions;
+ }
+
+ /**
+ * Registers a Token Parser.
+ *
+ * @param Twig_TokenParserInterface $parser A Twig_TokenParserInterface instance
+ */
+ public function addTokenParser(Twig_TokenParserInterface $parser)
+ {
+ $this->staging['token_parsers'][] = $parser;
+ $this->parsers = null;
+ }
+
+ /**
+ * Gets the registered Token Parsers.
+ *
+ * @return Twig_TokenParserBrokerInterface A broker containing token parsers
+ */
+ public function getTokenParsers()
+ {
+ if (null === $this->parsers) {
+ $this->parsers = new Twig_TokenParserBroker();
+
+ if (isset($this->staging['token_parsers'])) {
+ foreach ($this->staging['token_parsers'] as $parser) {
+ $this->parsers->addTokenParser($parser);
+ }
+ }
+
+ foreach ($this->getExtensions() as $extension) {
+ $parsers = $extension->getTokenParsers();
+ foreach($parsers as $parser) {
+ if ($parser instanceof Twig_TokenParserInterface) {
+ $this->parsers->addTokenParser($parser);
+ } elseif ($parser instanceof Twig_TokenParserBrokerInterface) {
+ $this->parsers->addTokenParserBroker($parser);
+ } else {
+ throw new Twig_Error_Runtime('getTokenParsers() must return an array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances');
+ }
+ }
+ }
+ }
+
+ return $this->parsers;
+ }
+
+ /**
+ * Gets registered tags.
+ *
+ * Be warned that this method cannot return tags defined by Twig_TokenParserBrokerInterface classes.
+ *
+ * @return Twig_TokenParserInterface[] An array of Twig_TokenParserInterface instances
+ */
+ public function getTags()
+ {
+ $tags = array();
+ foreach ($this->getTokenParsers()->getParsers() as $parser) {
+ if ($parser instanceof Twig_TokenParserInterface) {
+ $tags[$parser->getTag()] = $parser;
+ }
+ }
+
+ return $tags;
+ }
+
+ /**
+ * Registers a Node Visitor.
+ *
+ * @param Twig_NodeVisitorInterface $visitor A Twig_NodeVisitorInterface instance
+ */
+ public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)
+ {
+ $this->staging['visitors'][] = $visitor;
+ $this->visitors = null;
+ }
+
+ /**
+ * Gets the registered Node Visitors.
+ *
+ * @return Twig_NodeVisitorInterface[] An array of Twig_NodeVisitorInterface instances
+ */
+ public function getNodeVisitors()
+ {
+ if (null === $this->visitors) {
+ foreach ($this->getExtensions() as $extension) {
+ foreach ($extension->getNodeVisitors() as $visitor) {
+ $this->addNodeVisitor($visitor);
+ }
+ }
+
+ $this->visitors = $this->staging['visitors'];
+ }
+
+ return $this->visitors;
+ }
+
+ /**
+ * Registers a Filter.
+ *
+ * @param string $name The filter name
+ * @param Twig_FilterInterface $filter A Twig_FilterInterface instance
+ */
+ public function addFilter($name, Twig_FilterInterface $filter)
+ {
+ $this->staging['filters'][$name] = $filter;
+ $this->filters = null;
+ }
+
+ /**
+ * Get a filter by name.
+ *
+ * Subclasses may override this method and load filters differently;
+ * so no list of filters is available.
+ *
+ * @param string $name The filter name
+ *
+ * @return Twig_Filter|false A Twig_Filter instance or false if the filter does not exists
+ */
+ public function getFilter($name)
+ {
+ if (null === $this->filters) {
+ $this->getFilters();
+ }
+
+ if (isset($this->filters[$name])) {
+ return $this->filters[$name];
+ }
+
+ foreach ($this->filters as $pattern => $filter) {
+ $pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
+
+ if ($count) {
+ if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
+ array_shift($matches);
+ $filter->setArguments($matches);
+
+ return $filter;
+ }
+ }
+ }
+
+ foreach ($this->filterCallbacks as $callback) {
+ if (false !== $filter = call_user_func($callback, $name)) {
+ return $filter;
+ }
+ }
+
+ return false;
+ }
+
+ public function registerUndefinedFilterCallback($callable)
+ {
+ $this->filterCallbacks[] = $callable;
+ }
+
+ /**
+ * Gets the registered Filters.
+ *
+ * Be warned that this method cannot return filters defined with registerUndefinedFunctionCallback.
+ *
+ * @return Twig_FilterInterface[] An array of Twig_FilterInterface instances
+ *
+ * @see registerUndefinedFilterCallback
+ */
+ public function getFilters()
+ {
+ if (null === $this->filters) {
+ foreach ($this->getExtensions() as $extension) {
+ foreach ($extension->getFilters() as $name => $filter) {
+ $this->addFilter($name, $filter);
+ }
+ }
+
+ $this->filters = $this->staging['filters'];
+ }
+
+ return $this->filters;
+ }
+
+ /**
+ * Registers a Test.
+ *
+ * @param string $name The test name
+ * @param Twig_TestInterface $test A Twig_TestInterface instance
+ */
+ public function addTest($name, Twig_TestInterface $test)
+ {
+ $this->staging['tests'][$name] = $test;
+ $this->tests = null;
+ }
+
+ /**
+ * Gets the registered Tests.
+ *
+ * @return Twig_TestInterface[] An array of Twig_TestInterface instances
+ */
+ public function getTests()
+ {
+ if (null === $this->tests) {
+ foreach ($this->getExtensions() as $extension) {
+ foreach ($extension->getTests() as $name => $test) {
+ $this->addTest($name, $test);
+ }
+ }
+
+ $this->tests = $this->staging['tests'];
+ }
+
+ return $this->tests;
+ }
+
+ /**
+ * Registers a Function.
+ *
+ * @param string $name The function name
+ * @param Twig_FunctionInterface $function A Twig_FunctionInterface instance
+ */
+ public function addFunction($name, Twig_FunctionInterface $function)
+ {
+ $this->staging['functions'][$name] = $function;
+ $this->functions = null;
+ }
+
+ /**
+ * Get a function by name.
+ *
+ * Subclasses may override this method and load functions differently;
+ * so no list of functions is available.
+ *
+ * @param string $name function name
+ *
+ * @return Twig_Function|false A Twig_Function instance or false if the function does not exists
+ */
+ public function getFunction($name)
+ {
+ if (null === $this->functions) {
+ $this->getFunctions();
+ }
+
+ if (isset($this->functions[$name])) {
+ return $this->functions[$name];
+ }
+
+ foreach ($this->functions as $pattern => $function) {
+ $pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
+
+ if ($count) {
+ if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
+ array_shift($matches);
+ $function->setArguments($matches);
+
+ return $function;
+ }
+ }
+ }
+
+ foreach ($this->functionCallbacks as $callback) {
+ if (false !== $function = call_user_func($callback, $name)) {
+ return $function;
+ }
+ }
+
+ return false;
+ }
+
+ public function registerUndefinedFunctionCallback($callable)
+ {
+ $this->functionCallbacks[] = $callable;
+ }
+
+ /**
+ * Gets registered functions.
+ *
+ * Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback.
+ *
+ * @return Twig_FunctionInterface[] An array of Twig_FunctionInterface instances
+ *
+ * @see registerUndefinedFunctionCallback
+ */
+ public function getFunctions()
+ {
+ if (null === $this->functions) {
+ foreach ($this->getExtensions() as $extension) {
+ foreach ($extension->getFunctions() as $name => $function) {
+ $this->addFunction($name, $function);
+ }
+ }
+
+ $this->functions = $this->staging['functions'];
+ }
+
+ return $this->functions;
+ }
+
+ /**
+ * Registers a Global.
+ *
+ * @param string $name The global name
+ * @param mixed $value The global value
+ */
+ public function addGlobal($name, $value)
+ {
+ $this->staging['globals'][$name] = $value;
+ $this->globals = null;
+ }
+
+ /**
+ * Gets the registered Globals.
+ *
+ * @return array An array of globals
+ */
+ public function getGlobals()
+ {
+ if (null === $this->globals) {
+ $this->globals = isset($this->staging['globals']) ? $this->staging['globals'] : array();
+ foreach ($this->getExtensions() as $extension) {
+ $this->globals = array_merge($this->globals, $extension->getGlobals());
+ }
+ }
+
+ return $this->globals;
+ }
+
+ /**
+ * Merges a context with the defined globals.
+ *
+ * @param array $context An array representing the context
+ *
+ * @return array The context merged with the globals
+ */
+ public function mergeGlobals(array $context)
+ {
+ // we don't use array_merge as the context being generally
+ // bigger than globals, this code is faster.
+ foreach ($this->getGlobals() as $key => $value) {
+ if (!array_key_exists($key, $context)) {
+ $context[$key] = $value;
+ }
+ }
+
+ return $context;
+ }
+
+ /**
+ * Gets the registered unary Operators.
+ *
+ * @return array An array of unary operators
+ */
+ public function getUnaryOperators()
+ {
+ if (null === $this->unaryOperators) {
+ $this->initOperators();
+ }
+
+ return $this->unaryOperators;
+ }
+
+ /**
+ * Gets the registered binary Operators.
+ *
+ * @return array An array of binary operators
+ */
+ public function getBinaryOperators()
+ {
+ if (null === $this->binaryOperators) {
+ $this->initOperators();
+ }
+
+ return $this->binaryOperators;
+ }
+
+ public function computeAlternatives($name, $items)
+ {
+ $alternatives = array();
+ foreach ($items as $item) {
+ $lev = levenshtein($name, $item);
+ if ($lev <= strlen($name) / 3 || false !== strpos($item, $name)) {
+ $alternatives[$item] = $lev;
+ }
+ }
+ asort($alternatives);
+
+ return array_keys($alternatives);
+ }
+
+ protected function initOperators()
+ {
+ $this->unaryOperators = array();
+ $this->binaryOperators = array();
+ foreach ($this->getExtensions() as $extension) {
+ $operators = $extension->getOperators();
+
+ if (!$operators) {
+ continue;
+ }
+
+ if (2 !== count($operators)) {
+ throw new InvalidArgumentException(sprintf('"%s::getOperators()" does not return a valid operators array.', get_class($extension)));
+ }
+
+ $this->unaryOperators = array_merge($this->unaryOperators, $operators[0]);
+ $this->binaryOperators = array_merge($this->binaryOperators, $operators[1]);
+ }
+ }
+
+ protected function writeCacheFile($file, $content)
+ {
+ $dir = dirname($file);
+ if (!is_dir($dir)) {
+ if (false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
+ throw new RuntimeException(sprintf("Unable to create the cache directory (%s).", $dir));
+ }
+ } elseif (!is_writable($dir)) {
+ throw new RuntimeException(sprintf("Unable to write in the cache directory (%s).", $dir));
+ }
+
+ $tmpFile = tempnam(dirname($file), basename($file));
+ if (false !== @file_put_contents($tmpFile, $content)) {
+ // rename does not work on Win32 before 5.2.6
+ if (@rename($tmpFile, $file) || (@copy($tmpFile, $file) && unlink($tmpFile))) {
+ @chmod($file, 0644);
+
+ return;
+ }
+ }
+
+ throw new Twig_Error_Runtime(sprintf('Failed to write cache file "%s".', $file));
+ }
+}
Added: logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error.php
URL: http://svn.apache.org/viewvc/logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error.php?rev=1341499&view=auto
==============================================================================
--- logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error.php (added)
+++ logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error.php Tue May 22 14:42:25 2012
@@ -0,0 +1,199 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig base exception.
+ *
+ * @package twig
+ * @author Fabien Potencier <fa...@symfony.com>
+ */
+class Twig_Error extends Exception
+{
+ protected $lineno;
+ protected $filename;
+ protected $rawMessage;
+ protected $previous;
+
+ /**
+ * Constructor.
+ *
+ * @param string $message The error message
+ * @param integer $lineno The template line where the error occurred
+ * @param string $filename The template file name where the error occurred
+ * @param Exception $previous The previous exception
+ */
+ public function __construct($message, $lineno = -1, $filename = null, Exception $previous = null)
+ {
+ if (version_compare(PHP_VERSION, '5.3.0', '<')) {
+ $this->previous = $previous;
+ parent::__construct('');
+ } else {
+ parent::__construct('', 0, $previous);
+ }
+
+ $this->lineno = $lineno;
+ $this->filename = $filename;
+
+ if (-1 === $this->lineno || null === $this->filename) {
+ $this->guessTemplateInfo();
+ }
+
+ $this->rawMessage = $message;
+
+ $this->updateRepr();
+ }
+
+ /**
+ * Gets the raw message.
+ *
+ * @return string The raw message
+ */
+ public function getRawMessage()
+ {
+ return $this->rawMessage;
+ }
+
+ /**
+ * Gets the filename where the error occurred.
+ *
+ * @return string The filename
+ */
+ public function getTemplateFile()
+ {
+ return $this->filename;
+ }
+
+ /**
+ * Sets the filename where the error occurred.
+ *
+ * @param string $filename The filename
+ */
+ public function setTemplateFile($filename)
+ {
+ $this->filename = $filename;
+
+ $this->updateRepr();
+ }
+
+ /**
+ * Gets the template line where the error occurred.
+ *
+ * @return integer The template line
+ */
+ public function getTemplateLine()
+ {
+ return $this->lineno;
+ }
+
+ /**
+ * Sets the template line where the error occurred.
+ *
+ * @param integer $lineno The template line
+ */
+ public function setTemplateLine($lineno)
+ {
+ $this->lineno = $lineno;
+
+ $this->updateRepr();
+ }
+
+ /**
+ * For PHP < 5.3.0, provides access to the getPrevious() method.
+ *
+ * @param string $method The method name
+ * @param array $arguments The parameters to be passed to the method
+ *
+ * @return Exception The previous exception or null
+ */
+ public function __call($method, $arguments)
+ {
+ if ('getprevious' == strtolower($method)) {
+ return $this->previous;
+ }
+
+ throw new BadMethodCallException(sprintf('Method "Twig_Error::%s()" does not exist.', $method));
+ }
+
+ protected function updateRepr()
+ {
+ $this->message = $this->rawMessage;
+
+ $dot = false;
+ if ('.' === substr($this->message, -1)) {
+ $this->message = substr($this->message, 0, -1);
+ $dot = true;
+ }
+
+ if (null !== $this->filename) {
+ if (is_string($this->filename) || (is_object($this->filename) && method_exists($this->filename, '__toString'))) {
+ $filename = sprintf('"%s"', $this->filename);
+ } else {
+ $filename = json_encode($this->filename);
+ }
+ $this->message .= sprintf(' in %s', $filename);
+ }
+
+ if ($this->lineno >= 0) {
+ $this->message .= sprintf(' at line %d', $this->lineno);
+ }
+
+ if ($dot) {
+ $this->message .= '.';
+ }
+ }
+
+ protected function guessTemplateInfo()
+ {
+ $template = null;
+ foreach (debug_backtrace() as $trace) {
+ if (isset($trace['object']) && $trace['object'] instanceof Twig_Template && 'Twig_Template' !== get_class($trace['object'])) {
+ $template = $trace['object'];
+
+ // update template filename
+ if (null === $this->filename) {
+ $this->filename = $template->getTemplateName();
+ }
+
+ break;
+ }
+ }
+
+ if (null === $template || $this->lineno > -1) {
+ return;
+ }
+
+ $r = new ReflectionObject($template);
+ $file = $r->getFileName();
+
+ $exceptions = array($e = $this);
+ while (($e instanceof self || method_exists($e, 'getPrevious')) && $e = $e->getPrevious()) {
+ $exceptions[] = $e;
+ }
+
+ while ($e = array_pop($exceptions)) {
+ $traces = $e->getTrace();
+ while ($trace = array_shift($traces)) {
+ if (!isset($trace['file']) || !isset($trace['line']) || $file != $trace['file']) {
+ continue;
+ }
+
+ foreach ($template->getDebugInfo() as $codeLine => $templateLine) {
+ if ($codeLine <= $trace['line']) {
+ // update template line
+ $this->lineno = $templateLine;
+
+ return;
+ }
+ }
+ }
+ }
+ }
+}
Added: logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Loader.php
URL: http://svn.apache.org/viewvc/logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Loader.php?rev=1341499&view=auto
==============================================================================
--- logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Loader.php (added)
+++ logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Loader.php Tue May 22 14:42:25 2012
@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when an error occurs during template loading.
+ *
+ * @package twig
+ * @author Fabien Potencier <fa...@symfony.com>
+ */
+class Twig_Error_Loader extends Twig_Error
+{
+}
Added: logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Runtime.php
URL: http://svn.apache.org/viewvc/logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Runtime.php?rev=1341499&view=auto
==============================================================================
--- logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Runtime.php (added)
+++ logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Runtime.php Tue May 22 14:42:25 2012
@@ -0,0 +1,21 @@
+<?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.
+ */
+
+/**
+ * Exception thrown when an error occurs at runtime.
+ *
+ * @package twig
+ * @author Fabien Potencier <fa...@symfony.com>
+ */
+class Twig_Error_Runtime extends Twig_Error
+{
+}
Added: logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Syntax.php
URL: http://svn.apache.org/viewvc/logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Syntax.php?rev=1341499&view=auto
==============================================================================
--- logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Syntax.php (added)
+++ logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Error/Syntax.php Tue May 22 14:42:25 2012
@@ -0,0 +1,21 @@
+<?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.
+ */
+
+/**
+ * Exception thrown when a syntax error occurs during lexing or parsing of a template.
+ *
+ * @package twig
+ * @author Fabien Potencier <fa...@symfony.com>
+ */
+class Twig_Error_Syntax extends Twig_Error
+{
+}
Added: logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/ExpressionParser.php
URL: http://svn.apache.org/viewvc/logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/ExpressionParser.php?rev=1341499&view=auto
==============================================================================
--- logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/ExpressionParser.php (added)
+++ logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/ExpressionParser.php Tue May 22 14:42:25 2012
@@ -0,0 +1,488 @@
+<?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.
+ */
+
+/**
+ * Parses expressions.
+ *
+ * This parser implements a "Precedence climbing" algorithm.
+ *
+ * @see http://www.engr.mun.ca/~theo/Misc/exp_parsing.htm
+ * @see http://en.wikipedia.org/wiki/Operator-precedence_parser
+ *
+ * @package twig
+ * @author Fabien Potencier <fa...@symfony.com>
+ */
+class Twig_ExpressionParser
+{
+ const OPERATOR_LEFT = 1;
+ const OPERATOR_RIGHT = 2;
+
+ protected $parser;
+ protected $unaryOperators;
+ protected $binaryOperators;
+
+ public function __construct(Twig_Parser $parser, array $unaryOperators, array $binaryOperators)
+ {
+ $this->parser = $parser;
+ $this->unaryOperators = $unaryOperators;
+ $this->binaryOperators = $binaryOperators;
+ }
+
+ public function parseExpression($precedence = 0)
+ {
+ $expr = $this->getPrimary();
+ $token = $this->parser->getCurrentToken();
+ while ($this->isBinary($token) && $this->binaryOperators[$token->getValue()]['precedence'] >= $precedence) {
+ $op = $this->binaryOperators[$token->getValue()];
+ $this->parser->getStream()->next();
+
+ if (isset($op['callable'])) {
+ $expr = call_user_func($op['callable'], $this->parser, $expr);
+ } else {
+ $expr1 = $this->parseExpression(self::OPERATOR_LEFT === $op['associativity'] ? $op['precedence'] + 1 : $op['precedence']);
+ $class = $op['class'];
+ $expr = new $class($expr, $expr1, $token->getLine());
+ }
+
+ $token = $this->parser->getCurrentToken();
+ }
+
+ if (0 === $precedence) {
+ return $this->parseConditionalExpression($expr);
+ }
+
+ return $expr;
+ }
+
+ protected function getPrimary()
+ {
+ $token = $this->parser->getCurrentToken();
+
+ if ($this->isUnary($token)) {
+ $operator = $this->unaryOperators[$token->getValue()];
+ $this->parser->getStream()->next();
+ $expr = $this->parseExpression($operator['precedence']);
+ $class = $operator['class'];
+
+ return $this->parsePostfixExpression(new $class($expr, $token->getLine()));
+ } elseif ($token->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+ $this->parser->getStream()->next();
+ $expr = $this->parseExpression();
+ $this->parser->getStream()->expect(Twig_Token::PUNCTUATION_TYPE, ')', 'An opened parenthesis is not properly closed');
+
+ return $this->parsePostfixExpression($expr);
+ }
+
+ return $this->parsePrimaryExpression();
+ }
+
+ protected function parseConditionalExpression($expr)
+ {
+ while ($this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '?')) {
+ $this->parser->getStream()->next();
+ $expr2 = $this->parseExpression();
+ $this->parser->getStream()->expect(Twig_Token::PUNCTUATION_TYPE, ':', 'The ternary operator must have a default value');
+ $expr3 = $this->parseExpression();
+
+ $expr = new Twig_Node_Expression_Conditional($expr, $expr2, $expr3, $this->parser->getCurrentToken()->getLine());
+ }
+
+ return $expr;
+ }
+
+ protected function isUnary(Twig_Token $token)
+ {
+ return $token->test(Twig_Token::OPERATOR_TYPE) && isset($this->unaryOperators[$token->getValue()]);
+ }
+
+ protected function isBinary(Twig_Token $token)
+ {
+ return $token->test(Twig_Token::OPERATOR_TYPE) && isset($this->binaryOperators[$token->getValue()]);
+ }
+
+ public function parsePrimaryExpression()
+ {
+ $token = $this->parser->getCurrentToken();
+ switch ($token->getType()) {
+ case Twig_Token::NAME_TYPE:
+ $this->parser->getStream()->next();
+ switch ($token->getValue()) {
+ case 'true':
+ case 'TRUE':
+ $node = new Twig_Node_Expression_Constant(true, $token->getLine());
+ break;
+
+ case 'false':
+ case 'FALSE':
+ $node = new Twig_Node_Expression_Constant(false, $token->getLine());
+ break;
+
+ case 'none':
+ case 'NONE':
+ case 'null':
+ case 'NULL':
+ $node = new Twig_Node_Expression_Constant(null, $token->getLine());
+ break;
+
+ default:
+ if ('(' === $this->parser->getCurrentToken()->getValue()) {
+ $node = $this->getFunctionNode($token->getValue(), $token->getLine());
+ } else {
+ $node = new Twig_Node_Expression_Name($token->getValue(), $token->getLine());
+ }
+ }
+ break;
+
+ case Twig_Token::NUMBER_TYPE:
+ $this->parser->getStream()->next();
+ $node = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+ break;
+
+ case Twig_Token::STRING_TYPE:
+ case Twig_Token::INTERPOLATION_START_TYPE:
+ $node = $this->parseStringExpression();
+ break;
+
+ default:
+ if ($token->test(Twig_Token::PUNCTUATION_TYPE, '[')) {
+ $node = $this->parseArrayExpression();
+ } elseif ($token->test(Twig_Token::PUNCTUATION_TYPE, '{')) {
+ $node = $this->parseHashExpression();
+ } else {
+ throw new Twig_Error_Syntax(sprintf('Unexpected token "%s" of value "%s"', Twig_Token::typeToEnglish($token->getType(), $token->getLine()), $token->getValue()), $token->getLine());
+ }
+ }
+
+ return $this->parsePostfixExpression($node);
+ }
+
+ public function parseStringExpression()
+ {
+ $stream = $this->parser->getStream();
+
+ $nodes = array();
+ // a string cannot be followed by another string in a single expression
+ $nextCanBeString = true;
+ while (true) {
+ if ($stream->test(Twig_Token::STRING_TYPE) && $nextCanBeString) {
+ $token = $stream->next();
+ $nodes[] = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+ $nextCanBeString = false;
+ } elseif ($stream->test(Twig_Token::INTERPOLATION_START_TYPE)) {
+ $stream->next();
+ $nodes[] = $this->parseExpression();
+ $stream->expect(Twig_Token::INTERPOLATION_END_TYPE);
+ $nextCanBeString = true;
+ } else {
+ break;
+ }
+ }
+
+ $expr = array_shift($nodes);
+ foreach ($nodes as $node) {
+ $expr = new Twig_Node_Expression_Binary_Concat($expr, $node, $node->getLine());
+ }
+
+ return $expr;
+ }
+
+ public function parseArrayExpression()
+ {
+ $stream = $this->parser->getStream();
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, '[', 'An array element was expected');
+
+ $node = new Twig_Node_Expression_Array(array(), $stream->getCurrent()->getLine());
+ $first = true;
+ while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) {
+ if (!$first) {
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'An array element must be followed by a comma');
+
+ // trailing ,?
+ if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) {
+ break;
+ }
+ }
+ $first = false;
+
+ $node->addElement($this->parseExpression());
+ }
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']', 'An opened array is not properly closed');
+
+ return $node;
+ }
+
+ public function parseHashExpression()
+ {
+ $stream = $this->parser->getStream();
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, '{', 'A hash element was expected');
+
+ $node = new Twig_Node_Expression_Array(array(), $stream->getCurrent()->getLine());
+ $first = true;
+ while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, '}')) {
+ if (!$first) {
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'A hash value must be followed by a comma');
+
+ // trailing ,?
+ if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '}')) {
+ break;
+ }
+ }
+ $first = false;
+
+ // a hash key can be:
+ //
+ // * a number -- 12
+ // * a string -- 'a'
+ // * a name, which is equivalent to a string -- a
+ // * an expression, which must be enclosed in parentheses -- (1 + 2)
+ if ($stream->test(Twig_Token::STRING_TYPE) || $stream->test(Twig_Token::NAME_TYPE) || $stream->test(Twig_Token::NUMBER_TYPE)) {
+ $token = $stream->next();
+ $key = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+ } elseif ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+ $key = $this->parseExpression();
+ } else {
+ $current = $stream->getCurrent();
+
+ throw new Twig_Error_Syntax(sprintf('A hash key must be a quoted string, a number, a name, or an expression enclosed in parentheses (unexpected token "%s" of value "%s"', Twig_Token::typeToEnglish($current->getType(), $current->getLine()), $current->getValue()), $current->getLine());
+ }
+
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ':', 'A hash key must be followed by a colon (:)');
+ $value = $this->parseExpression();
+
+ $node->addElement($value, $key);
+ }
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, '}', 'An opened hash is not properly closed');
+
+ return $node;
+ }
+
+ public function parsePostfixExpression($node)
+ {
+ while (true) {
+ $token = $this->parser->getCurrentToken();
+ if ($token->getType() == Twig_Token::PUNCTUATION_TYPE) {
+ if ('.' == $token->getValue() || '[' == $token->getValue()) {
+ $node = $this->parseSubscriptExpression($node);
+ } elseif ('|' == $token->getValue()) {
+ $node = $this->parseFilterExpression($node);
+ } else {
+ break;
+ }
+ } else {
+ break;
+ }
+ }
+
+ return $node;
+ }
+
+ public function getFunctionNode($name, $line)
+ {
+ $args = $this->parseArguments();
+ switch ($name) {
+ case 'parent':
+ if (!count($this->parser->getBlockStack())) {
+ throw new Twig_Error_Syntax('Calling "parent" outside a block is forbidden', $line);
+ }
+
+ if (!$this->parser->getParent() && !$this->parser->hasTraits()) {
+ throw new Twig_Error_Syntax('Calling "parent" on a template that does not extend nor "use" another template is forbidden', $line);
+ }
+
+ return new Twig_Node_Expression_Parent($this->parser->peekBlockStack(), $line);
+ case 'block':
+ return new Twig_Node_Expression_BlockReference($args->getNode(0), false, $line);
+ case 'attribute':
+ if (count($args) < 2) {
+ throw new Twig_Error_Syntax('The "attribute" function takes at least two arguments (the variable and the attributes)', $line);
+ }
+
+ return new Twig_Node_Expression_GetAttr($args->getNode(0), $args->getNode(1), count($args) > 2 ? $args->getNode(2) : new Twig_Node_Expression_Array(array(), $line), Twig_TemplateInterface::ANY_CALL, $line);
+ default:
+ if (null !== $alias = $this->parser->getImportedFunction($name)) {
+ $arguments = new Twig_Node_Expression_Array(array(), $line);
+ foreach ($args as $n) {
+ $arguments->addElement($n);
+ }
+
+ $node = new Twig_Node_Expression_MethodCall($alias['node'], $alias['name'], $arguments, $line);
+ $node->setAttribute('safe', true);
+
+ return $node;
+ }
+
+ $class = $this->getFunctionNodeClass($name);
+
+ return new $class($name, $args, $line);
+ }
+ }
+
+ public function parseSubscriptExpression($node)
+ {
+ $stream = $this->parser->getStream();
+ $token = $stream->next();
+ $lineno = $token->getLine();
+ $arguments = new Twig_Node_Expression_Array(array(), $lineno);
+ $type = Twig_TemplateInterface::ANY_CALL;
+ if ($token->getValue() == '.') {
+ $token = $stream->next();
+ if (
+ $token->getType() == Twig_Token::NAME_TYPE
+ ||
+ $token->getType() == Twig_Token::NUMBER_TYPE
+ ||
+ ($token->getType() == Twig_Token::OPERATOR_TYPE && preg_match(Twig_Lexer::REGEX_NAME, $token->getValue()))
+ ) {
+ $arg = new Twig_Node_Expression_Constant($token->getValue(), $lineno);
+
+ if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+ $type = Twig_TemplateInterface::METHOD_CALL;
+ foreach ($this->parseArguments() as $n) {
+ $arguments->addElement($n);
+ }
+ }
+ } else {
+ throw new Twig_Error_Syntax('Expected name or number', $lineno);
+ }
+ } else {
+ $type = Twig_TemplateInterface::ARRAY_CALL;
+
+ $arg = $this->parseExpression();
+
+ // slice?
+ if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ':')) {
+ $stream->next();
+
+ if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) {
+ $length = new Twig_Node_Expression_Constant(null, $token->getLine());
+ } else {
+ $length = $this->parseExpression();
+ }
+
+ $class = $this->getFilterNodeClass('slice');
+ $arguments = new Twig_Node(array($arg, $length));
+ $filter = new $class($node, new Twig_Node_Expression_Constant('slice', $token->getLine()), $arguments, $token->getLine());
+
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']');
+
+ return $filter;
+ }
+
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']');
+ }
+
+ return new Twig_Node_Expression_GetAttr($node, $arg, $arguments, $type, $lineno);
+ }
+
+ public function parseFilterExpression($node)
+ {
+ $this->parser->getStream()->next();
+
+ return $this->parseFilterExpressionRaw($node);
+ }
+
+ public function parseFilterExpressionRaw($node, $tag = null)
+ {
+ while (true) {
+ $token = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE);
+
+ $name = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+ if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+ $arguments = new Twig_Node();
+ } else {
+ $arguments = $this->parseArguments();
+ }
+
+ $class = $this->getFilterNodeClass($name->getAttribute('value'));
+
+ $node = new $class($node, $name, $arguments, $token->getLine(), $tag);
+
+ if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '|')) {
+ break;
+ }
+
+ $this->parser->getStream()->next();
+ }
+
+ return $node;
+ }
+
+ public function parseArguments()
+ {
+ $args = array();
+ $stream = $this->parser->getStream();
+
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, '(', 'A list of arguments must be opened by a parenthesis');
+ while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, ')')) {
+ if (!empty($args)) {
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'Arguments must be separated by a comma');
+ }
+ $args[] = $this->parseExpression();
+ }
+ $stream->expect(Twig_Token::PUNCTUATION_TYPE, ')', 'A list of arguments must be closed by a parenthesis');
+
+ return new Twig_Node($args);
+ }
+
+ public function parseAssignmentExpression()
+ {
+ $targets = array();
+ while (true) {
+ $token = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE, null, 'Only variables can be assigned to');
+ if (in_array($token->getValue(), array('true', 'false', 'none'))) {
+ throw new Twig_Error_Syntax(sprintf('You cannot assign a value to "%s"', $token->getValue()), $token->getLine());
+ }
+ $targets[] = new Twig_Node_Expression_AssignName($token->getValue(), $token->getLine());
+
+ if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, ',')) {
+ break;
+ }
+ $this->parser->getStream()->next();
+ }
+
+ return new Twig_Node($targets);
+ }
+
+ public function parseMultitargetExpression()
+ {
+ $targets = array();
+ while (true) {
+ $targets[] = $this->parseExpression();
+ if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, ',')) {
+ break;
+ }
+ $this->parser->getStream()->next();
+ }
+
+ return new Twig_Node($targets);
+ }
+
+ protected function getFunctionNodeClass($name)
+ {
+ $functionMap = $this->parser->getEnvironment()->getFunctions();
+ if (isset($functionMap[$name]) && $functionMap[$name] instanceof Twig_Function_Node) {
+ return $functionMap[$name]->getClass();
+ }
+
+ return 'Twig_Node_Expression_Function';
+ }
+
+ protected function getFilterNodeClass($name)
+ {
+ $filterMap = $this->parser->getEnvironment()->getFilters();
+ if (isset($filterMap[$name]) && $filterMap[$name] instanceof Twig_Filter_Node) {
+ return $filterMap[$name]->getClass();
+ }
+
+ return 'Twig_Node_Expression_Filter';
+ }
+}
Added: logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Extension.php
URL: http://svn.apache.org/viewvc/logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Extension.php?rev=1341499&view=auto
==============================================================================
--- logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Extension.php (added)
+++ logging/site/branches/experimental-twig-textile/libs/Twig/lib/Twig/Extension.php Tue May 22 14:42:25 2012
@@ -0,0 +1,93 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+abstract class Twig_Extension implements Twig_ExtensionInterface
+{
+ /**
+ * Initializes the runtime environment.
+ *
+ * This is where you can load some file that contains filter functions for instance.
+ *
+ * @param Twig_Environment $environment The current Twig_Environment instance
+ */
+ public function initRuntime(Twig_Environment $environment)
+ {
+ }
+
+ /**
+ * Returns the token parser instances to add to the existing list.
+ *
+ * @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances
+ */
+ public function getTokenParsers()
+ {
+ return array();
+ }
+
+ /**
+ * Returns the node visitor instances to add to the existing list.
+ *
+ * @return array An array of Twig_NodeVisitorInterface instances
+ */
+ public function getNodeVisitors()
+ {
+ return array();
+ }
+
+ /**
+ * Returns a list of filters to add to the existing list.
+ *
+ * @return array An array of filters
+ */
+ public function getFilters()
+ {
+ return array();
+ }
+
+ /**
+ * Returns a list of tests to add to the existing list.
+ *
+ * @return array An array of tests
+ */
+ public function getTests()
+ {
+ return array();
+ }
+
+ /**
+ * Returns a list of functions to add to the existing list.
+ *
+ * @return array An array of functions
+ */
+ public function getFunctions()
+ {
+ return array();
+ }
+
+ /**
+ * Returns a list of operators to add to the existing list.
+ *
+ * @return array An array of operators
+ */
+ public function getOperators()
+ {
+ return array();
+ }
+
+ /**
+ * Returns a list of global variables to add to the existing list.
+ *
+ * @return array An array of global variables
+ */
+ public function getGlobals()
+ {
+ return array();
+ }
+}