private function Parser::parseAttributeNode in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 vendor/symfony/css-selector/Parser/Parser.php \Symfony\Component\CssSelector\Parser\Parser::parseAttributeNode()

Parses next attribute node.

Parameters

Node\NodeInterface $selector:

TokenStream $stream:

Return value

Node\AttributeNode

Throws

SyntaxErrorException

1 call to Parser::parseAttributeNode()

Parser::parseSimpleSelector in vendor/symfony/css-selector/Parser/Parser.php

Parses next simple node (hash, class, pseudo, negation).

File

vendor/symfony/css-selector/Parser/Parser.php, line 335

Class

Parser

CSS selector parser.

Namespace

Symfony\Component\CssSelector\Parser

Code

private function parseAttributeNode(Node\NodeInterface $selector, TokenStream $stream) {
  $stream
    ->skipWhitespace();
  $attribute = $stream
    ->getNextIdentifierOrStar();
  if (null === $attribute && !$stream
    ->getPeek()
    ->isDelimiter(array(
    '|',
  ))) {
    throw SyntaxErrorException::unexpectedToken('"|"', $stream
      ->getPeek());
  }
  if ($stream
    ->getPeek()
    ->isDelimiter(array(
    '|',
  ))) {
    $stream
      ->getNext();
    if ($stream
      ->getPeek()
      ->isDelimiter(array(
      '=',
    ))) {
      $namespace = null;
      $stream
        ->getNext();
      $operator = '|=';
    }
    else {
      $namespace = $attribute;
      $attribute = $stream
        ->getNextIdentifier();
      $operator = null;
    }
  }
  else {
    $namespace = $operator = null;
  }
  if (null === $operator) {
    $stream
      ->skipWhitespace();
    $next = $stream
      ->getNext();
    if ($next
      ->isDelimiter(array(
      ']',
    ))) {
      return new Node\AttributeNode($selector, $namespace, $attribute, 'exists', null);
    }
    elseif ($next
      ->isDelimiter(array(
      '=',
    ))) {
      $operator = '=';
    }
    elseif ($next
      ->isDelimiter(array(
      '^',
      '$',
      '*',
      '~',
      '|',
      '!',
    )) && $stream
      ->getPeek()
      ->isDelimiter(array(
      '=',
    ))) {
      $operator = $next
        ->getValue() . '=';
      $stream
        ->getNext();
    }
    else {
      throw SyntaxErrorException::unexpectedToken('operator', $next);
    }
  }
  $stream
    ->skipWhitespace();
  $value = $stream
    ->getNext();
  if ($value
    ->isNumber()) {

    // if the value is a number, it's casted into a string
    $value = new Token(Token::TYPE_STRING, (string) $value
      ->getValue(), $value
      ->getPosition());
  }
  if (!($value
    ->isIdentifier() || $value
    ->isString())) {
    throw SyntaxErrorException::unexpectedToken('string or identifier', $value);
  }
  $stream
    ->skipWhitespace();
  $next = $stream
    ->getNext();
  if (!$next
    ->isDelimiter(array(
    ']',
  ))) {
    throw SyntaxErrorException::unexpectedToken('"]"', $next);
  }
  return new Node\AttributeNode($selector, $namespace, $attribute, $operator, $value
    ->getValue());
}