File "Parser.php"

Full Path: /home/warrior1/public_html/languages/wp-content/plugins/mailpoet/vendor-prefixed/twig/twig/src/Parser.php
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Charset: utf-8

<?php
namespace MailPoetVendor\Twig;
if (!defined('ABSPATH')) exit;
use MailPoetVendor\Twig\Error\SyntaxError;
use MailPoetVendor\Twig\Node\BlockNode;
use MailPoetVendor\Twig\Node\BlockReferenceNode;
use MailPoetVendor\Twig\Node\BodyNode;
use MailPoetVendor\Twig\Node\Expression\AbstractExpression;
use MailPoetVendor\Twig\Node\MacroNode;
use MailPoetVendor\Twig\Node\ModuleNode;
use MailPoetVendor\Twig\Node\Node;
use MailPoetVendor\Twig\Node\NodeCaptureInterface;
use MailPoetVendor\Twig\Node\NodeOutputInterface;
use MailPoetVendor\Twig\Node\PrintNode;
use MailPoetVendor\Twig\Node\TextNode;
use MailPoetVendor\Twig\TokenParser\TokenParserInterface;
class Parser
{
 private $stack = [];
 private $stream;
 private $parent;
 private $visitors;
 private $expressionParser;
 private $blocks;
 private $blockStack;
 private $macros;
 private $env;
 private $importedSymbols;
 private $traits;
 private $embeddedTemplates = [];
 private $varNameSalt = 0;
 public function __construct(Environment $env)
 {
 $this->env = $env;
 }
 public function getVarName() : string
 {
 return \sprintf('__internal_parse_%d', $this->varNameSalt++);
 }
 public function parse(TokenStream $stream, $test = null, bool $dropNeedle = \false) : ModuleNode
 {
 $vars = \get_object_vars($this);
 unset($vars['stack'], $vars['env'], $vars['handlers'], $vars['visitors'], $vars['expressionParser'], $vars['reservedMacroNames'], $vars['varNameSalt']);
 $this->stack[] = $vars;
 // node visitors
 if (null === $this->visitors) {
 $this->visitors = $this->env->getNodeVisitors();
 }
 if (null === $this->expressionParser) {
 $this->expressionParser = new ExpressionParser($this, $this->env);
 }
 $this->stream = $stream;
 $this->parent = null;
 $this->blocks = [];
 $this->macros = [];
 $this->traits = [];
 $this->blockStack = [];
 $this->importedSymbols = [[]];
 $this->embeddedTemplates = [];
 try {
 $body = $this->subparse($test, $dropNeedle);
 if (null !== $this->parent && null === ($body = $this->filterBodyNodes($body))) {
 $body = new Node();
 }
 } catch (SyntaxError $e) {
 if (!$e->getSourceContext()) {
 $e->setSourceContext($this->stream->getSourceContext());
 }
 if (!$e->getTemplateLine()) {
 $e->setTemplateLine($this->stream->getCurrent()->getLine());
 }
 throw $e;
 }
 $node = new ModuleNode(new BodyNode([$body]), $this->parent, new Node($this->blocks), new Node($this->macros), new Node($this->traits), $this->embeddedTemplates, $stream->getSourceContext());
 $traverser = new NodeTraverser($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, bool $dropNeedle = \false) : Node
 {
 $lineno = $this->getCurrentToken()->getLine();
 $rv = [];
 while (!$this->stream->isEOF()) {
 switch ($this->getCurrentToken()->getType()) {
 case 0:
 $token = $this->stream->next();
 $rv[] = new TextNode($token->getValue(), $token->getLine());
 break;
 case 2:
 $token = $this->stream->next();
 $expr = $this->expressionParser->parseExpression();
 $this->stream->expect(
 4
 );
 $rv[] = new PrintNode($expr, $token->getLine());
 break;
 case 1:
 $this->stream->next();
 $token = $this->getCurrentToken();
 if (5 !== $token->getType()) {
 throw new SyntaxError('A block must start with a tag name.', $token->getLine(), $this->stream->getSourceContext());
 }
 if (null !== $test && $test($token)) {
 if ($dropNeedle) {
 $this->stream->next();
 }
 if (1 === \count($rv)) {
 return $rv[0];
 }
 return new Node($rv, [], $lineno);
 }
 if (!($subparser = $this->env->getTokenParser($token->getValue()))) {
 if (null !== $test) {
 $e = new SyntaxError(\sprintf('Unexpected "%s" tag', $token->getValue()), $token->getLine(), $this->stream->getSourceContext());
 if (\is_array($test) && isset($test[0]) && $test[0] instanceof TokenParserInterface) {
 $e->appendMessage(\sprintf(' (expecting closing tag for the "%s" tag defined near line %s).', $test[0]->getTag(), $lineno));
 }
 } else {
 $e = new SyntaxError(\sprintf('Unknown "%s" tag.', $token->getValue()), $token->getLine(), $this->stream->getSourceContext());
 $e->addSuggestions($token->getValue(), \array_keys($this->env->getTokenParsers()));
 }
 throw $e;
 }
 $this->stream->next();
 $subparser->setParser($this);
 $node = $subparser->parse($token);
 if (null !== $node) {
 $rv[] = $node;
 }
 break;
 default:
 throw new SyntaxError('Lexer or parser ended up in unsupported state.', $this->getCurrentToken()->getLine(), $this->stream->getSourceContext());
 }
 }
 if (1 === \count($rv)) {
 return $rv[0];
 }
 return new Node($rv, [], $lineno);
 }
 public function getBlockStack() : array
 {
 return $this->blockStack;
 }
 public function peekBlockStack()
 {
 return $this->blockStack[\count($this->blockStack) - 1] ?? null;
 }
 public function popBlockStack() : void
 {
 \array_pop($this->blockStack);
 }
 public function pushBlockStack($name) : void
 {
 $this->blockStack[] = $name;
 }
 public function hasBlock(string $name) : bool
 {
 return isset($this->blocks[$name]);
 }
 public function getBlock(string $name) : Node
 {
 return $this->blocks[$name];
 }
 public function setBlock(string $name, BlockNode $value) : void
 {
 $this->blocks[$name] = new BodyNode([$value], [], $value->getTemplateLine());
 }
 public function hasMacro(string $name) : bool
 {
 return isset($this->macros[$name]);
 }
 public function setMacro(string $name, MacroNode $node) : void
 {
 $this->macros[$name] = $node;
 }
 public function addTrait($trait) : void
 {
 $this->traits[] = $trait;
 }
 public function hasTraits() : bool
 {
 return \count($this->traits) > 0;
 }
 public function embedTemplate(ModuleNode $template)
 {
 $template->setIndex(\mt_rand());
 $this->embeddedTemplates[] = $template;
 }
 public function addImportedSymbol(string $type, string $alias, string $name = null, AbstractExpression $node = null) : void
 {
 $this->importedSymbols[0][$type][$alias] = ['name' => $name, 'node' => $node];
 }
 public function getImportedSymbol(string $type, string $alias)
 {
 // if the symbol does not exist in the current scope (0), try in the main/global scope (last index)
 return $this->importedSymbols[0][$type][$alias] ?? $this->importedSymbols[\count($this->importedSymbols) - 1][$type][$alias] ?? null;
 }
 public function isMainScope() : bool
 {
 return 1 === \count($this->importedSymbols);
 }
 public function pushLocalScope() : void
 {
 \array_unshift($this->importedSymbols, []);
 }
 public function popLocalScope() : void
 {
 \array_shift($this->importedSymbols);
 }
 public function getExpressionParser() : ExpressionParser
 {
 return $this->expressionParser;
 }
 public function getParent() : ?Node
 {
 return $this->parent;
 }
 public function setParent(?Node $parent) : void
 {
 $this->parent = $parent;
 }
 public function getStream() : TokenStream
 {
 return $this->stream;
 }
 public function getCurrentToken() : Token
 {
 return $this->stream->getCurrent();
 }
 private function filterBodyNodes(Node $node, bool $nested = \false) : ?Node
 {
 // check that the body does not contain non-empty output nodes
 if ($node instanceof TextNode && !\ctype_space($node->getAttribute('data')) || !$node instanceof TextNode && !$node instanceof BlockReferenceNode && $node instanceof NodeOutputInterface) {
 if (\false !== \strpos((string) $node, \chr(0xef) . \chr(0xbb) . \chr(0xbf))) {
 $t = \substr($node->getAttribute('data'), 3);
 if ('' === $t || \ctype_space($t)) {
 // bypass empty nodes starting with a BOM
 return null;
 }
 }
 throw new SyntaxError('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(), $this->stream->getSourceContext());
 }
 // bypass nodes that "capture" the output
 if ($node instanceof NodeCaptureInterface) {
 // a "block" tag in such a node will serve as a block definition AND be displayed in place as well
 return $node;
 }
 // "block" tags that are not captured (see above) are only used for defining
 // the content of the block. In such a case, nesting it does not work as
 // expected as the definition is not part of the default template code flow.
 if ($nested && $node instanceof BlockReferenceNode) {
 throw new SyntaxError('A block definition cannot be nested under non-capturing nodes.', $node->getTemplateLine(), $this->stream->getSourceContext());
 }
 if ($node instanceof NodeOutputInterface) {
 return null;
 }
 // here, $nested means "being at the root level of a child template"
 // we need to discard the wrapping "Node" for the "body" node
 $nested = $nested || Node::class !== \get_class($node);
 foreach ($node as $k => $n) {
 if (null !== $n && null === $this->filterBodyNodes($n, $nested)) {
 $node->removeNode($k);
 }
 }
 return $node;
 }
}