public static function Parser::parseSeries 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::parseSeries()

Parses the arguments for ":nth-child()" and friends.

Parameters

Token[] $tokens:

Return value

array

Throws

SyntaxErrorException

3 calls to Parser::parseSeries()

FunctionExtension::translateNthChild in vendor/symfony/css-selector/XPath/Extension/FunctionExtension.php

ParserTest::testParseSeries in vendor/symfony/css-selector/Tests/Parser/ParserTest.php

@dataProvider getParseSeriesTestData

ParserTest::testParseSeriesException in vendor/symfony/css-selector/Tests/Parser/ParserTest.php

@dataProvider getParseSeriesExceptionTestData

File

vendor/symfony/css-selector/Parser/Parser.php, line 63

Class

Parser

CSS selector parser.

Namespace

Symfony\Component\CssSelector\Parser

Code

public static function parseSeries(array $tokens) {
  foreach ($tokens as $token) {
    if ($token
      ->isString()) {
      throw SyntaxErrorException::stringAsFunctionArgument();
    }
  }
  $joined = trim(implode('', array_map(function (Token $token) {
    return $token
      ->getValue();
  }, $tokens)));
  $int = function ($string) {
    if (!is_numeric($string)) {
      throw SyntaxErrorException::stringAsFunctionArgument();
    }
    return (int) $string;
  };
  switch (true) {
    case 'odd' === $joined:
      return array(
        2,
        1,
      );
    case 'even' === $joined:
      return array(
        2,
        0,
      );
    case 'n' === $joined:
      return array(
        1,
        0,
      );
    case false === strpos($joined, 'n'):
      return array(
        0,
        $int($joined),
      );
  }
  $split = explode('n', $joined);
  $first = isset($split[0]) ? $split[0] : null;
  return array(
    $first ? '-' === $first || '+' === $first ? $int($first . '1') : $int($first) : 1,
    isset($split[1]) && $split[1] ? $int($split[1]) : 0,
  );
}