/**
* Called before child nodes are visited.
*
* @param Twig_Node $node The node to visit
* @param Twig_Environment $env The Twig environment instance
*
* @return Twig_Node The modified node
*/
public function enterNode(Twig_Node $node, Twig_Environment $env)
{
if ($node instanceof Twig_Node_Module) {
$this->inAModule = true;
$this->tags = array();
$this->filters = array();
$this->functions = array();
return $node;
} elseif ($this->inAModule) {
// look for tags
if ($node->getNodeTag() && !isset($this->tags[$node->getNodeTag()])) {
$this->tags[$node->getNodeTag()] = $node;
}
// look for filters
if ($node instanceof Twig_Node_Expression_Filter && !isset($this->filters[$node->getNode('filter')->getAttribute('value')])) {
$this->filters[$node->getNode('filter')->getAttribute('value')] = $node;
}
// look for functions
if ($node instanceof Twig_Node_Expression_Function && !isset($this->functions[$node->getAttribute('name')])) {
$this->functions[$node->getAttribute('name')] = $node;
}
// wrap print to check __toString() calls
if ($node instanceof Twig_Node_Print) {
return new Twig_Node_SandboxedPrint($node->getNode('expr'), $node->getLine(), $node->getNodeTag());
}
}
return $node;
}
/**
* Loads assets from the supplied node.
*
* @param \Twig_Node $node
*
* @return array An array of asset formulae indexed by name
*/
private function loadNode(\Twig_Node $node)
{
$formulae = array();
if ($node instanceof AsseticNode) {
$formulae[$node->getAttribute('name')] = array($node->getAttribute('inputs'), $node->getAttribute('filters'), array('output' => $node->getAttribute('asset')->getTargetPath(), 'name' => $node->getAttribute('name'), 'debug' => $node->getAttribute('debug'), 'combine' => $node->getAttribute('combine'), 'vars' => $node->getAttribute('vars')));
} elseif ($node instanceof \Twig_Node_Expression_Function) {
$name = version_compare(\Twig_Environment::VERSION, '1.2.0-DEV', '<') ? $node->getNode('name')->getAttribute('name') : $node->getAttribute('name');
if ($this->twig->getFunction($name) instanceof AsseticFilterFunction) {
$arguments = array();
foreach ($node->getNode('arguments') as $argument) {
$arguments[] = eval('return ' . $this->twig->compile($argument) . ';');
}
$invoker = $this->twig->getExtension('assetic')->getFilterInvoker($name);
$inputs = isset($arguments[0]) ? (array) $arguments[0] : array();
$filters = $invoker->getFilters();
$options = array_replace($invoker->getOptions(), isset($arguments[1]) ? $arguments[1] : array());
if (!isset($options['name'])) {
$options['name'] = $invoker->getFactory()->generateAssetName($inputs, $filters, $options);
}
$formulae[$options['name']] = array($inputs, $filters, $options);
}
}
foreach ($node as $child) {
if ($child instanceof \Twig_Node) {
$formulae += $this->loadNode($child);
}
}
if ($node->hasAttribute('embedded_templates')) {
foreach ($node->getAttribute('embedded_templates') as $child) {
$formulae += $this->loadNode($child);
}
}
return $formulae;
}
/**
* Loads assets from the supplied node.
*
* @param \Twig_Node $node
*
* @return array An array of asset formulae indexed by name
*/
private function loadNode(\Twig_Node $node)
{
$formulae = array();
if ($node instanceof AsseticNode) {
$formulae[$node->getAttribute('name')] = array($node->getAttribute('inputs'), $node->getAttribute('filters'), array('output' => $node->getAttribute('asset')->getTargetPath(), 'name' => $node->getAttribute('name'), 'debug' => $node->getAttribute('debug'), 'combine' => $node->getAttribute('combine'), 'vars' => $node->getAttribute('vars')));
} elseif ($node instanceof \Twig_Node_Expression_Function) {
$name = $node->getAttribute('name');
if ($this->twig->getFunction($name) instanceof AsseticFilterFunction) {
$arguments = array();
foreach ($node->getNode('arguments') as $argument) {
$arguments[] = eval('return ' . $this->twig->compile($argument) . ';');
}
$invoker = $this->twig->getExtension('assetic')->getFilterInvoker($name);
$inputs = isset($arguments[0]) ? (array) $arguments[0] : array();
$filters = $invoker->getFilters();
$options = array_replace($invoker->getOptions(), isset($arguments[1]) ? $arguments[1] : array());
if (!isset($options['name'])) {
$options['name'] = $invoker->getFactory()->generateAssetName($inputs, $filters, $options);
}
$formulae[$options['name']] = array($inputs, $filters, $options);
}
}
foreach ($node as $child) {
if ($child instanceof \Twig_Node) {
$formulae += $this->loadNode($child);
}
}
if ($node->hasAttribute('embedded_templates')) {
foreach ($node->getAttribute('embedded_templates') as $child) {
$formulae += $this->loadNode($child);
}
}
$formulaes = array();
$asseticDebug = $this->app['assetic.debug'];
foreach ($formulae as $n => $f) {
list($inputs, $filters, $options) = $f;
// 當沒有資源或此資源已被解開過的時候
if (count($inputs) > 0 && strlen($n) <= 7 && ($asseticDebug == true || $options['debug'] === true || $options['combine'] === false)) {
$path = pathinfo($options['output']);
$counter = 1;
foreach ($inputs as $input) {
$inputPath = pathinfo($input);
$_name = $n . '_' . md5($input);
$_inputs = array($input);
$_filters = $filters;
$_options = array('output' => "{$path['dirname']}/{$path['filename']}_{$inputPath['filename']}_{$counter}.{$path['extension']}", 'name' => "{$path['filename']}_{$inputPath['filename']}_{$counter}") + $options;
$formulaes[$_name] = array($_inputs, $_filters, $_options);
$counter++;
}
} else {
$formulaes[$n] = $f;
}
}
$formulae = $formulaes;
return $formulae;
}
protected function compileString(\Twig_Node $body)
{
if ($body instanceof \Twig_Node_Expression_Constant) {
$msg = $body->getAttribute('value');
} elseif ($body instanceof \Twig_Node_Text) {
$msg = $body->getAttribute('data');
} else {
return $body;
}
return new \Twig_Node_Expression_Constant(trim($msg), $body->getLine());
}
/**
* {@inheritdoc}
*/
public function leaveNode(Twig_Node $node, Twig_Environment $env)
{
if ($node instanceof Twig_Node_Module) {
$varName = $this->getVarName();
$node->setNode('display_start', new Twig_Node(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::TEMPLATE, $node->getAttribute('filename'), $varName), $node->getNode('display_start'))));
$node->setNode('display_end', new Twig_Node(array(new Twig_Profiler_Node_LeaveProfile($varName), $node->getNode('display_end'))));
} elseif ($node instanceof Twig_Node_Block) {
$varName = $this->getVarName();
$node->setNode('body', new Twig_Node_Body(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::BLOCK, $node->getAttribute('name'), $varName), $node->getNode('body'), new Twig_Profiler_Node_LeaveProfile($varName))));
} elseif ($node instanceof Twig_Node_Macro) {
$varName = $this->getVarName();
$node->setNode('body', new Twig_Node_Body(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::MACRO, $node->getAttribute('name'), $varName), $node->getNode('body'), new Twig_Profiler_Node_LeaveProfile($varName))));
}
return $node;
}
public static function process(\Twig_Node $node, Translations $translations, $file)
{
$fileReference = str_replace(realpath(self::$rootDir . '/../') . '/', "", $file);
if ($node instanceof TransNode) {
//Process nodes that {% trans %} blocks
$body = new \Twig_Node_Expression_Constant($node->getNode('body')->getAttribute('data'), $node->getLine());
$compiledTranslation = eval('return ' . self::$twig->compile($body) . ';');
$translations->insert('', $compiledTranslation)->addReference($fileReference, $node->getLine());
}
if ($node instanceof \Twig_Node_Expression_Function) {
//Process nodes that are function expressions
if ($node->getAttribute('name') == '__') {
//Check the function name for __()
foreach ($node->getNode('arguments') as $argument) {
//Grab the argument
$key = eval('return ' . self::$twig->compile($argument) . ';');
$translations->insert('', $key)->addReference($fileReference, $node->getLine());
break;
//I only needed the first argument in my implementation
}
}
}
//Recursively loop through the AST
foreach ($node as $child) {
if ($child instanceof \Twig_Node) {
self::process($child, $translations, $file);
}
}
}
private function loadNode(Node $node, $resource)
{
$assets = array();
if ($node instanceof ExpressionFunction) {
$name = $node->getAttribute('name');
if ($name === $this->functionName) {
$arguments = iterator_to_array($node->getNode('arguments'));
if (!is_array($arguments)) {
throw new ResourceParsingException('arguments is not an array');
}
if (count($arguments) !== 1 && count($arguments) !== 2) {
throw new ResourceParsingException(sprintf('Expected exactly one or two arguments passed to function %s in %s at line %s', $this->functionName, $resource, $node->getLine()));
}
if (!$arguments[0] instanceof ConstantFunction) {
throw new ResourceParsingException(sprintf('Argument passed to function %s must be text node to parse without context. File %s, line %s', $this->functionName, $resource, $node->getLine()));
}
$assets[] = $arguments[0]->getAttribute('value');
return $assets;
}
}
foreach ($node as $child) {
if ($child instanceof Node) {
$assets = array_merge($assets, $this->loadNode($child, $resource));
}
}
return $assets;
}
/**
* {@inheritdoc}
*/
protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
{
if ($node instanceof Twig_Node_Module) {
if ($env->hasExtension('escaper') && ($defaultStrategy = $env->getExtension('escaper')->getDefaultStrategy($node->getAttribute('filename')))) {
$this->defaultStrategy = $defaultStrategy;
}
$this->safeVars = array();
} elseif ($node instanceof Twig_Node_AutoEscape) {
$this->statusStack[] = $node->getAttribute('value');
} elseif ($node instanceof Twig_Node_Block) {
$this->statusStack[] = isset($this->blocks[$node->getAttribute('name')]) ? $this->blocks[$node->getAttribute('name')] : $this->needEscaping($env);
} elseif ($node instanceof Twig_Node_Import) {
$this->safeVars[] = $node->getNode('var')->getAttribute('name');
}
return $node;
}
protected function compileString(\Twig_Node $body, \Twig_Node_Expression_Array $vars, $ignoreStrictCheck = false)
{
// Extract the message to be translated, or return if it doesn't need translations
if ($body instanceof \Twig_Node_Expression_Constant) {
$msg = $body->getAttribute('value');
} elseif ($body instanceof \Twig_Node_Text) {
$msg = $body->getAttribute('data');
} else {
return array($body, $vars);
}
// Escape variable passed using 'with'
// {% safetrans with {...} %}{% endsafetrans %}
$vars = $this->escapeWithVariables($vars, $body->getLine());
// Escape variables that needs to be read from $context
// {% safetrans %}...{% endsafetrans %}
$vars = $this->escapeContextVariables($msg, $vars, $body->getLine());
return array(new \Twig_Node_Expression_Constant(str_replace('%%', '%', trim($msg)), $body->getLine()), $vars);
}
protected function doLeaveNode(\Twig_Node $node, \Twig_Environment $env)
{
if ($node instanceof WhitespaceCollapse || $node instanceof \Twig_Node_Block || $node instanceof \Twig_Node_AutoEscape) {
array_pop($this->statusStack);
} elseif ($node instanceof \Twig_Node_BlockReference) {
$this->blocks[$node->getAttribute('name')] = $this->needCollapsing();
} elseif ($node instanceof \Twig_Node_Text && $this->needCollapsing()) {
$text = $node->getAttribute('data');
if ($this->previousNode instanceof \Twig_Node_Text && ctype_space(substr($this->previousNode->getAttribute('data'), -1))) {
$text = ltrim($text);
}
if ($text === '') {
return false;
}
$node->setAttribute('data', preg_replace(array('/\\s{2,}/', '/<\\s/', '/\\s>/'), array(' ', '<', '>'), $text));
}
$this->previousNode = $node;
return $node;
}
/**
* Find placeholder nodes recursively.
*
* @param Twig_Node $node
* @param array $placeholders
*/
protected function getVariables($node, &$placeholders)
{
if ($node instanceof Curry_Twig_Node_Placeholder) {
$placeholders[$node->getAttribute('name')] = true;
}
foreach ($node->getIterator() as $n) {
if ($n instanceof Twig_Node) {
$this->getVariables($n, $placeholders);
}
}
}
public function __construct(\Twig_Node $left, \Twig_Node $right, $lineno)
{
parent::__construct(array('left' => $left, 'right' => $right), array(), $lineno);
if ($left instanceof \Twig_Node_Expression_Name) {
$this->arguments = [$left->getAttribute('name')];
} elseif ($left instanceof Arguments) {
$this->arguments = $left->getArguments();
} else {
throw new \InvalidArgumentException('Invalid argument\'s list for lambda.');
}
if (count($this->arguments) !== count(array_flip($this->arguments))) {
throw new \InvalidArgumentException('Each lambda argument must have unique name.');
}
}
protected function compileString(\Twig_Node $body, \Twig_Node_Expression_Array $vars, $ignoreStrictCheck = false)
{
if ($body instanceof \Twig_Node_Expression_Constant) {
$msg = $body->getAttribute('value');
} elseif ($body instanceof \Twig_Node_Text) {
$msg = $body->getAttribute('data');
} else {
return array($body, $vars);
}
preg_match_all('/(?<!%)%([^%]+)%/', $msg, $matches);
foreach ($matches[1] as $var) {
$key = new \Twig_Node_Expression_Constant('%' . $var . '%', $body->getLine());
if (!$vars->hasElement($key)) {
if ('count' === $var && null !== $this->getNode('count')) {
$vars->addElement($this->getNode('count'), $key);
} else {
$varExpr = new \Twig_Node_Expression_Name($var, $body->getLine());
$varExpr->setAttribute('ignore_strict_check', $ignoreStrictCheck);
$vars->addElement($varExpr, $key);
}
}
}
return array(new \Twig_Node_Expression_Constant(str_replace('%%', '%', trim($msg)), $body->getLine()), $vars);
}
/**
* Compiles a node.
*
* @param Twig_Node $node The node to compile
* @param int $indentation The current indentation
*
* @return Twig_Compiler The current compiler instance
*/
public function compile(Twig_Node $node, $indentation = 0)
{
$this->lastLine = null;
$this->source = '';
$this->debugInfo = array();
$this->sourceOffset = 0;
// source code starts at 1 (as we then increment it when we encounter new lines)
$this->sourceLine = 1;
$this->indentation = $indentation;
if ($node instanceof Twig_Node_Module) {
$this->filename = $node->getAttribute('filename');
}
$node->compile($this);
return $this;
}
/**
* Loads assets from the supplied node.
*
* @return array An array of asset formulae indexed by name
*/
private function loadNode(\Twig_Node $node)
{
$assets = array();
if ($node instanceof AsseticNode) {
$assets[$node->getAttribute('name')] = array($node->getAttribute('inputs'), $node->getAttribute('filters'), array('output' => $node->getAttribute('output'), 'name' => $node->getAttribute('name'), 'debug' => $node->getAttribute('debug')));
}
foreach ($node as $child) {
if ($child instanceof \Twig_Node) {
$assets += $this->loadNode($child);
}
}
return $assets;
}
/**
* {@inheritdoc}
*/
protected function doEnterNode(\Twig_Node $node, \Twig_Environment $env)
{
if ($node instanceof \Twig_Node_Module) {
$this->filename = $node->getAttribute('filename');
}
if ($this->shouldProcess()) {
if ($this->isBufferizingNode($node)) {
$this->shouldBufferize = true;
}
if ($node instanceof \Twig_Node_Module) {
$this->blocks = $node->getNode('blocks')->getIterator()->getArrayCopy();
}
if ($node instanceof \Twig_Node_Body) {
$this->currentScope = null;
} elseif ($node instanceof \Twig_Node_Block) {
$this->currentScope = $node->getAttribute('name');
}
}
return $node;
}
/**
* Extracts formulae from filter function nodes.
*
* @return array|null The formula
*/
private function checkNode(\Twig_Node $node, \Twig_Environment $env, &$name = null)
{
if ($node instanceof \Twig_Node_Expression_Function) {
$name = $node->getAttribute('name');
if ($env->getFunction($name) instanceof AsseticFilterFunction) {
$arguments = array();
foreach ($node->getNode('arguments') as $argument) {
$arguments[] = eval('return ' . $env->compile($argument) . ';');
}
$invoker = $env->getExtension('assetic')->getFilterInvoker($name);
$factory = $invoker->getFactory();
$inputs = isset($arguments[0]) ? (array) $arguments[0] : array();
$filters = $invoker->getFilters();
$options = array_replace($invoker->getOptions(), isset($arguments[1]) ? $arguments[1] : array());
if (!isset($options['name'])) {
$options['name'] = $factory->generateAssetName($inputs, $filters);
}
return array($inputs, $filters, $options);
}
}
}
/**
* Loads assets from the supplied node.
*
* @return array An array of asset formulae indexed by name
*/
private function loadNode(\Twig_Node $node)
{
$assets = array();
if ($node instanceof Node) {
$assets[$node->getAttribute('asset_name')] = array(
$node->getAttribute('source_urls'),
$node->getAttribute('filter_names'),
array(
'output' => $node->getAttribute('target_url'),
'name' => $node->getAttribute('asset_name'),
'debug' => $node->getAttribute('debug'),
),
);
}
foreach ($node as $child) {
if ($child instanceof \Twig_Node) {
$assets += $this->loadNode($child);
}
}
return $assets;
}
/**
* @param \Twig_Node $node
* @param $name
* @return mixed|null
*/
public function getAttribute(\Twig_Node $node, $name)
{
return $node->hasAttribute($name) ? $node->getAttribute($name) : null;
}
private function filterBodyNodes(Twig_Node $node)
{
// check that the body does not contain non-empty output nodes
if ($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->getLine(), $this->getFilename());
}
throw new Twig_Error_Syntax('A template that extends another one cannot include contents outside Twig blocks. Did you forget to put the contents inside a {% block %} tag?', $node->getLine(), $this->getFilename());
}
// bypass "set" nodes as they "capture" the output
if ($node instanceof Twig_Node_Set) {
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;
}
protected function dumpAssets(Node $node, AssetCollectionInterface $asset, $tagName, $assetPath, array $combination = array())
{
$inputs = $this->collectInputs($asset->all(), $combination, $node->getAttribute('inputs'));
$this->assetFileDumper->dump($assetPath, $inputs);
$aliasedAssetPath = $this->aliasPrefixer->prefixWithAlias($assetPath);
$arguments = array(str_replace('\\/', '/', json_encode($aliasedAssetPath)));
if ($tagName === 'stylesheets') {
$arguments[] = json_encode('css');
}
return $this->twigFunctionName . '(' . implode(', ', $arguments) . ')';
}
/**
* @param \Twig_Node $node
*
* @return string|null
*/
private function getReadDomainFromNode(\Twig_Node $node = null)
{
if (null === $node) {
return null;
}
if ($node instanceof \Twig_Node_Expression_Constant) {
return $node->getAttribute('value');
}
return self::UNDEFINED_DOMAIN;
}
/**
* Extract a message from a \Twig_Node_Print
* Return null if not a constant message
*
* @param \Twig_Node $node
*/
private function _extractMessage(\Twig_Node $node)
{
if($node->hasNode('node')) {
return $this->_extractMessage($node->getNode ('node'));
}
if($node instanceof \Twig_Node_Expression_Constant) {
return $node->getAttribute('value');
}
return null;
}
/**
* If the current Twig Node has embedded templates, we want to travese these templates
* in the same manner as we do the main twig template to ensure all translations are
* caught.
*
* @param \Twig_Node $node
*/
private function traverseEmbeddedTemplates(\Twig_Node $node)
{
$templates = $node->getAttribute('embedded_templates');
foreach ($templates as $template) {
$this->traverser->traverse($template);
if ($template->hasAttribute('embedded_templates')) {
$this->traverseEmbeddedTemplates($template);
}
}
}
