merged branch jfsimon/css-selector-rewriting (PR #7463)

This PR was merged into the master branch.

Discussion
----------

[CssSelector] fully rewritted component

The `CssSelector` component is a port of the Python https://github.com/SimonSapin/cssselect library. Previous implementation was a port of the `v0.1` tag, this implementation is a port of the `v0.7.1` tag. As Python and PHP have different philosophies, this is not a simple language-to-language translation, I needed to re-architecture the lib.

**Note about BC:** This new version introduces some changes making fail legacy tests.
New XPath should be equivalents, these changes are:
-  When having a condition on an class, legacy condition is prefixed with a test of class existence. Example: `[contains(@class, 'foo')]` is transformed to `[@class and contains(@class, 'foo')]`.
-  When having conditions on descendants, `/descendant::*` is transformed to `/descendant-or-self::*/*`.

I updated legacy tests (stored in `CssSelectorTest` class) accordingly.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | yes
| BC breaks?    | see above
| Deprecations? | no
| Tests pass?   | yes

Should fix #3615 and #4271

Commits
-------

c6f87d0 [CssSelector] fully rewritted component
This commit is contained in:
Fabien Potencier 2013-03-23 19:42:38 +01:00
commit d855650577
91 changed files with 6379 additions and 2242 deletions

View File

@ -11,7 +11,13 @@
namespace Symfony\Component\CssSelector;
use Symfony\Component\CssSelector\Exception\ParseException;
use Symfony\Component\CssSelector\Exception;
use Symfony\Component\CssSelector\Parser\Shortcut\ClassParser;
use Symfony\Component\CssSelector\Parser\Shortcut\ElementParser;
use Symfony\Component\CssSelector\Parser\Shortcut\EmptyStringParser;
use Symfony\Component\CssSelector\Parser\Shortcut\HashParser;
use Symfony\Component\CssSelector\XPath\Extension\HtmlExtension;
use Symfony\Component\CssSelector\XPath\Translator;
/**
* CssSelector is the main entry point of the component and can convert CSS
@ -19,8 +25,8 @@ use Symfony\Component\CssSelector\Exception\ParseException;
*
* $xpath = CssSelector::toXpath('h1.foo');
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
*
@ -33,290 +39,29 @@ class CssSelector
* Optionally, a prefix can be added to the resulting XPath
* expression with the $prefix parameter.
*
* @param mixed $cssExpr The CSS expression.
* @param string $prefix An optional prefix for the XPath expression.
* @param mixed $cssExpr The CSS expression.
* @param string $prefix An optional prefix for the XPath expression.
* @param boolean $html Enables HTML extension.
*
* @return string
*
* @throws ParseException When got None for xpath expression
*
* @api
*/
public static function toXPath($cssExpr, $prefix = 'descendant-or-self::')
public static function toXPath($cssExpr, $prefix = 'descendant-or-self::', $html = true)
{
if (is_string($cssExpr)) {
if (!$cssExpr) {
return $prefix.'*';
}
$translator = new Translator();
if (preg_match('#^\w+\s*$#u', $cssExpr, $match)) {
return $prefix.trim($match[0]);
}
if (preg_match('~^(\w*)#(\w+)\s*$~u', $cssExpr, $match)) {
return sprintf("%s%s[@id = '%s']", $prefix, $match[1] ? $match[1] : '*', $match[2]);
}
if (preg_match('#^(\w*)\.(\w+)\s*$#u', $cssExpr, $match)) {
return sprintf("%s%s[contains(concat(' ', normalize-space(@class), ' '), ' %s ')]", $prefix, $match[1] ? $match[1] : '*', $match[2]);
}
$parser = new self();
$cssExpr = $parser->parse($cssExpr);
if ($html) {
$translator->registerExtension(new HtmlExtension($translator));
}
$expr = $cssExpr->toXpath();
$translator
->registerParserShortcut(new EmptyStringParser())
->registerParserShortcut(new ElementParser())
->registerParserShortcut(new ClassParser())
->registerParserShortcut(new HashParser())
;
// @codeCoverageIgnoreStart
if (!$expr) {
throw new ParseException(sprintf('Got None for xpath expression from %s.', $cssExpr));
}
// @codeCoverageIgnoreEnd
if ($prefix) {
$expr->addPrefix($prefix);
}
return (string) $expr;
}
/**
* Parses an expression and returns the Node object that represents
* the parsed expression.
*
* @param string $string The expression to parse
*
* @return Node\NodeInterface
*
* @throws \Exception When tokenizer throws it while parsing
*/
public function parse($string)
{
$tokenizer = new Tokenizer();
$stream = new TokenStream($tokenizer->tokenize($string), $string);
try {
return $this->parseSelectorGroup($stream);
} catch (\Exception $e) {
$class = get_class($e);
throw new $class(sprintf('%s at %s -> %s', $e->getMessage(), implode($stream->getUsed(), ''), $stream->peek()), 0, $e);
}
}
/**
* Parses a selector group contained in $stream and returns
* the Node object that represents the expression.
*
* @param TokenStream $stream The stream to parse.
*
* @return Node\NodeInterface
*/
private function parseSelectorGroup($stream)
{
$result = array();
while (true) {
$result[] = $this->parseSelector($stream);
if ($stream->peek() == ',') {
$stream->next();
} else {
break;
}
}
if (count($result) == 1) {
return $result[0];
}
return new Node\OrNode($result);
}
/**
* Parses a selector contained in $stream and returns the Node
* object that represents it.
*
* @param TokenStream $stream The stream containing the selector.
*
* @return Node\NodeInterface
*
* @throws ParseException When expected selector but got something else
*/
private function parseSelector($stream)
{
$result = $this->parseSimpleSelector($stream);
while (true) {
$peek = $stream->peek();
if (',' == $peek || null === $peek) {
return $result;
} elseif (in_array($peek, array('+', '>', '~'))) {
// A combinator
$combinator = (string) $stream->next();
// Ignore optional whitespace after a combinator
while (' ' == $stream->peek()) {
$stream->next();
}
} else {
$combinator = ' ';
}
$consumed = count($stream->getUsed());
$nextSelector = $this->parseSimpleSelector($stream);
if ($consumed == count($stream->getUsed())) {
throw new ParseException(sprintf("Expected selector, got '%s'", $stream->peek()));
}
$result = new Node\CombinedSelectorNode($result, $combinator, $nextSelector);
}
return $result;
}
/**
* Parses a simple selector (the current token) from $stream and returns
* the resulting Node object.
*
* @param TokenStream $stream The stream containing the selector.
*
* @return Node\NodeInterface
*
* @throws ParseException When expected symbol but got something else
*/
private function parseSimpleSelector($stream)
{
$peek = $stream->peek();
if ('*' != $peek && !$peek->isType('Symbol')) {
$element = $namespace = '*';
} else {
$next = $stream->next();
if ('*' != $next && !$next->isType('Symbol')) {
throw new ParseException(sprintf("Expected symbol, got '%s'", $next));
}
if ($stream->peek() == '|') {
$namespace = $next;
$stream->next();
$element = $stream->next();
if ('*' != $element && !$next->isType('Symbol')) {
throw new ParseException(sprintf("Expected symbol, got '%s'", $next));
}
} else {
$namespace = '*';
$element = $next;
}
}
$result = new Node\ElementNode($namespace, $element);
$hasHash = false;
while (true) {
$peek = $stream->peek();
if ('#' == $peek) {
if ($hasHash) {
/* You can't have two hashes
(FIXME: is there some more general rule I'm missing?) */
// @codeCoverageIgnoreStart
break;
// @codeCoverageIgnoreEnd
}
$stream->next();
$result = new Node\HashNode($result, $stream->next());
$hasHash = true;
continue;
} elseif ('.' == $peek) {
$stream->next();
$result = new Node\ClassNode($result, $stream->next());
continue;
} elseif ('[' == $peek) {
$stream->next();
$result = $this->parseAttrib($result, $stream);
$next = $stream->next();
if (']' != $next) {
throw new ParseException(sprintf("] expected, got '%s'", $next));
}
continue;
} elseif (':' == $peek || '::' == $peek) {
$type = $stream->next();
$ident = $stream->next();
if (!$ident || !$ident->isType('Symbol')) {
throw new ParseException(sprintf("Expected symbol, got '%s'", $ident));
}
if ($stream->peek() == '(') {
$stream->next();
$peek = $stream->peek();
if ($peek->isType('String')) {
$selector = $stream->next();
} elseif ($peek->isType('Symbol') && is_int($peek)) {
$selector = intval($stream->next());
} else {
// FIXME: parseSimpleSelector, or selector, or...?
$selector = $this->parseSimpleSelector($stream);
}
$next = $stream->next();
if (')' != $next) {
throw new ParseException(sprintf("Expected ')', got '%s' and '%s'", $next, $selector));
}
$result = new Node\FunctionNode($result, $type, $ident, $selector);
} else {
$result = new Node\PseudoNode($result, $type, $ident);
}
continue;
} else {
if (' ' == $peek) {
$stream->next();
}
break;
}
// FIXME: not sure what "negation" is
}
return $result;
}
/**
* Parses an attribute from a selector contained in $stream and returns
* the resulting AttribNode object.
*
* @param Node\NodeInterface $selector The selector object whose attribute
* is to be parsed.
* @param TokenStream $stream The container token stream.
*
* @return Node\AttribNode
*
* @throws ParseException When encountered unexpected selector
*/
private function parseAttrib($selector, $stream)
{
$attrib = $stream->next();
if ($stream->peek() == '|') {
$namespace = $attrib;
$stream->next();
$attrib = $stream->next();
} else {
$namespace = '*';
}
if ($stream->peek() == ']') {
return new Node\AttribNode($selector, $namespace, $attrib, 'exists', null);
}
$op = $stream->next();
if (!in_array($op, array('^=', '$=', '*=', '=', '~=', '|=', '!='))) {
throw new ParseException(sprintf("Operator expected, got '%s'", $op));
}
$value = $stream->next();
if (!$value->isType('Symbol') && !$value->isType('String')) {
throw new ParseException(sprintf("Expected string or symbol, got '%s'", $value));
}
return new Node\AttribNode($selector, $namespace, $attrib, $op, $value);
return $translator->cssToXPath($cssExpr, $prefix);
}
}

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@ -0,0 +1,62 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector;
class CssSelectorTest extends \PHPUnit_Framework_TestCase
{
public function testCssToXPath()
{
$this->assertEquals('descendant-or-self::*', CssSelector::toXPath(''));
$this->assertEquals('descendant-or-self::h1', CssSelector::toXPath('h1'));
$this->assertEquals("descendant-or-self::h1[@id = 'foo']", CssSelector::toXPath('h1#foo'));
$this->assertEquals("descendant-or-self::h1[@class and contains(concat(' ', normalize-space(@class), ' '), ' foo ')]", CssSelector::toXPath('h1.foo'));
$this->assertEquals('descendant-or-self::foo:h1', CssSelector::toXPath('foo|h1'));
}
/** @dataProvider getCssToXPathWithoutPrefixTestData */
public function testCssToXPathWithoutPrefix($css, $xpath)
{
$this->assertEquals($xpath, CssSelector::toXPath($css, ''), '->parse() parses an input string and returns a node');
}
public function testParseExceptions()
{
try {
CssSelector::toXPath('h1:');
$this->fail('->parse() throws an Exception if the css selector is not valid');
} catch (\Exception $e) {
$this->assertInstanceOf('\Symfony\Component\CssSelector\Exception\ParseException', $e, '->parse() throws an Exception if the css selector is not valid');
$this->assertEquals("Expected identifier, but <eof at 3> found.", $e->getMessage(), '->parse() throws an Exception if the css selector is not valid');
}
}
public function getCssToXPathWithoutPrefixTestData()
{
return array(
array('h1', "h1"),
array('foo|h1', "foo:h1"),
array('h1, h2, h3', "h1 | h2 | h3"),
array('h1:nth-child(3n+1)', "*/*[name() = 'h1' and ((position() -1) mod 3 = 0 and position() >= 1)]"),
array('h1 > p', "h1/p"),
array('h1#foo', "h1[@id = 'foo']"),
array('h1.foo', "h1[@class and contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
array('h1[class*="foo bar"]', "h1[@class and contains(@class, 'foo bar')]"),
array('h1[foo|class*="foo bar"]', "h1[@foo:class and contains(@foo:class, 'foo bar')]"),
array('h1[class]', "h1[@class]"),
array('h1 .foo', "h1/descendant-or-self::*/*[@class and contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
array('h1 #foo', "h1/descendant-or-self::*/*[@id = 'foo']"),
array('h1 [class*=foo]', "h1/descendant-or-self::*/*[@class and contains(@class, 'foo')]"),
array('div>.foo', "div/*[@class and contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
array('div > .foo', "div/*[@class and contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
);
}
}

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@ -0,0 +1,24 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Exception;
/**
* Interface for exceptions.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
interface ExceptionInterface
{
}

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@ -0,0 +1,24 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Exception;
/**
* ParseException is thrown when a CSS selector syntax is not valid.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ExpressionErrorException extends ParseException implements ExceptionInterface
{
}

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@ -0,0 +1,24 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Exception;
/**
* ParseException is thrown when a CSS selector syntax is not valid.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class InternalErrorException extends ParseException implements ExceptionInterface
{
}

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@ -14,11 +14,11 @@ namespace Symfony\Component\CssSelector\Exception;
/**
* ParseException is thrown when a CSS selector syntax is not valid.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ParseException extends \Exception
class ParseException extends \Exception implements ExceptionInterface
{
}

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@ -0,0 +1,73 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Exception;
use Symfony\Component\CssSelector\Parser\Token;
/**
* ParseException is thrown when a CSS selector syntax is not valid.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class SyntaxErrorException extends ParseException implements ExceptionInterface
{
/**
* @param string $expectedValue
* @param Token $foundToken
*
* @return SyntaxErrorException
*/
public static function unexpectedToken($expectedValue, Token $foundToken)
{
return new self(sprintf('Expected %s, but %s found.', $expectedValue, $foundToken));
}
/**
* @param string $pseudoElement
* @param string $unexpectedLocation
*
* @return SyntaxErrorException
*/
public static function pseudoElementFound($pseudoElement, $unexpectedLocation)
{
return new self(sprintf('Unexpected pseudo-element "::%s" found %s.', $pseudoElement, $unexpectedLocation));
}
/**
* @param int $position
*
* @return SyntaxErrorException
*/
public static function unclosedString($position)
{
return new self(sprintf('Unclosed/invalid string at %s.', $position));
}
/**
* @return SyntaxErrorException
*/
public static function nestedNot()
{
return new self('Got nested ::not().');
}
/**
* @return SyntaxErrorException
*/
public static function stringAsFunctionArgument()
{
return new self('String not allowed as function argument.');
}
}

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@ -0,0 +1,40 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Node;
/**
* Abstract base node class.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
abstract class AbstractNode implements NodeInterface
{
/**
* @var string
*/
private $nodeName;
/**
* @return string
*/
public function getNodeName()
{
if (null === $this->nodeName) {
$this->nodeName = preg_replace('~.*\\\\([^\\\\]+)Node$~', '$1', get_called_class());
}
return $this->nodeName;
}
}

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@ -1,131 +0,0 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\XPathExpr;
use Symfony\Component\CssSelector\Exception\ParseException;
/**
* AttribNode represents a "selector[namespace|attrib operator value]" node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class AttribNode implements NodeInterface
{
protected $selector;
protected $namespace;
protected $attrib;
protected $operator;
protected $value;
/**
* Constructor.
*
* @param NodeInterface $selector The XPath selector
* @param string $namespace The namespace
* @param string $attrib The attribute
* @param string $operator The operator
* @param string $value The value
*/
public function __construct($selector, $namespace, $attrib, $operator, $value)
{
$this->selector = $selector;
$this->namespace = $namespace;
$this->attrib = $attrib;
$this->operator = $operator;
$this->value = $value;
}
/**
* {@inheritDoc}
*/
public function __toString()
{
if ($this->operator == 'exists') {
return sprintf('%s[%s[%s]]', __CLASS__, $this->selector, $this->formatAttrib());
}
return sprintf('%s[%s[%s %s %s]]', __CLASS__, $this->selector, $this->formatAttrib(), $this->operator, $this->value);
}
/**
* {@inheritDoc}
*/
public function toXpath()
{
$path = $this->selector->toXpath();
$attrib = $this->xpathAttrib();
$value = $this->value;
if ($this->operator == 'exists') {
$path->addCondition($attrib);
} elseif ($this->operator == '=') {
$path->addCondition(sprintf('%s = %s', $attrib, XPathExpr::xpathLiteral($value)));
} elseif ($this->operator == '!=') {
// FIXME: this seems like a weird hack...
if ($value) {
$path->addCondition(sprintf('not(%s) or %s != %s', $attrib, $attrib, XPathExpr::xpathLiteral($value)));
} else {
$path->addCondition(sprintf('%s != %s', $attrib, XPathExpr::xpathLiteral($value)));
}
// path.addCondition('%s != %s' % (attrib, xpathLiteral(value)))
} elseif ($this->operator == '~=') {
$path->addCondition(sprintf("contains(concat(' ', normalize-space(%s), ' '), %s)", $attrib, XPathExpr::xpathLiteral(' '.$value.' ')));
} elseif ($this->operator == '|=') {
// Weird, but true...
$path->addCondition(sprintf('%s = %s or starts-with(%s, %s)', $attrib, XPathExpr::xpathLiteral($value), $attrib, XPathExpr::xpathLiteral($value.'-')));
} elseif ($this->operator == '^=') {
$path->addCondition(sprintf('starts-with(%s, %s)', $attrib, XPathExpr::xpathLiteral($value)));
} elseif ($this->operator == '$=') {
// Oddly there is a starts-with in XPath 1.0, but not ends-with
$path->addCondition(sprintf('substring(%s, string-length(%s)-%s) = %s', $attrib, $attrib, strlen($value) - 1, XPathExpr::xpathLiteral($value)));
} elseif ($this->operator == '*=') {
// FIXME: case sensitive?
$path->addCondition(sprintf('contains(%s, %s)', $attrib, XPathExpr::xpathLiteral($value)));
} else {
throw new ParseException(sprintf('Unknown operator: %s', $this->operator));
}
return $path;
}
/**
* Returns the XPath Attribute
*
* @return string The XPath attribute
*/
protected function xpathAttrib()
{
// FIXME: if attrib is *?
if ($this->namespace == '*') {
return '@'.$this->attrib;
}
return sprintf('@%s:%s', $this->namespace, $this->attrib);
}
/**
* Returns a formatted attribute
*
* @return string The formatted attribute
*/
protected function formatAttrib()
{
if ($this->namespace == '*') {
return $this->attrib;
}
return sprintf('%s|%s', $this->namespace, $this->attrib);
}
}

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@ -0,0 +1,124 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Node;
/**
* Represents a "<selector>[<namespace>|<attribute> <operator> <value>]" node.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class AttributeNode extends AbstractNode
{
/**
* @var NodeInterface
*/
private $selector;
/**
* @var string
*/
private $namespace;
/**
* @var string
*/
private $attribute;
/**
* @var string
*/
private $operator;
/**
* @var string
*/
private $value;
/**
* @param NodeInterface $selector
* @param string $namespace
* @param string $attribute
* @param string $operator
* @param string $value
*/
public function __construct(NodeInterface $selector, $namespace, $attribute, $operator, $value)
{
$this->selector = $selector;
$this->namespace = $namespace;
$this->attribute = $attribute;
$this->operator = $operator;
$this->value = $value;
}
/**
* @return NodeInterface
*/
public function getSelector()
{
return $this->selector;
}
/**
* @return string
*/
public function getNamespace()
{
return $this->namespace;
}
/**
* @return string
*/
public function getAttribute()
{
return $this->attribute;
}
/**
* @return string
*/
public function getOperator()
{
return $this->operator;
}
/**
* @return string
*/
public function getValue()
{
return $this->value;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->selector->getSpecificity()->plus(new Specificity(0, 1, 0));
}
/**
* {@inheritdoc}
*/
public function __toString()
{
$attribute = $this->namespace ? $this->namespace.'|'.$this->attribute : $this->attribute;
return 'exists' === $this->operator
? sprintf('%s[%s[%s]]', $this->getNodeName(), $this->selector, $attribute)
: sprintf("%s[%s[%s %s '%s']]", $this->getNodeName(), $this->selector, $attribute, $this->operator, $this->value);
}
}

View File

@ -11,49 +11,65 @@
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\XPathExpr;
/**
* ClassNode represents a "selector.className" node.
* Represents a "<selector>.<name>" node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ClassNode implements NodeInterface
class ClassNode extends AbstractNode
{
protected $selector;
protected $className;
/**
* @var NodeInterface
*/
private $selector;
/**
* The constructor.
*
* @param NodeInterface $selector The XPath Selector
* @param string $className The class name
* @var string
*/
public function __construct($selector, $className)
private $name;
/**
* @param NodeInterface $selector
* @param string $name
*/
public function __construct(NodeInterface $selector, $name)
{
$this->selector = $selector;
$this->className = $className;
$this->name = $name;
}
/**
* {@inheritDoc}
* @return NodeInterface
*/
public function getSelector()
{
return $this->selector;
}
/**
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->selector->getSpecificity()->plus(new Specificity(0, 1, 0));
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return sprintf('%s[%s.%s]', __CLASS__, $this->selector, $this->className);
}
/**
* {@inheritDoc}
*/
public function toXpath()
{
$selXpath = $this->selector->toXpath();
$selXpath->addCondition(sprintf("contains(concat(' ', normalize-space(@class), ' '), %s)", XPathExpr::xpathLiteral(' '.$this->className.' ')));
return $selXpath;
return sprintf('%s[%s.%s]', $this->getNodeName(), $this->selector, $this->name);
}
}

View File

@ -11,132 +11,82 @@
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\Exception\ParseException;
/**
* CombinedSelectorNode represents a combinator node.
* Represents a combined node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class CombinedSelectorNode implements NodeInterface
class CombinedSelectorNode extends AbstractNode
{
protected static $methodMapping = array(
' ' => 'descendant',
'>' => 'child',
'+' => 'direct_adjacent',
'~' => 'indirect_adjacent',
);
protected $selector;
protected $combinator;
protected $subselector;
/**
* @var NodeInterface
*/
private $selector;
/**
* The constructor.
*
* @param NodeInterface $selector The XPath selector
* @param string $combinator The combinator
* @param NodeInterface $subselector The sub XPath selector
* @var string
*/
public function __construct($selector, $combinator, $subselector)
private $combinator;
/**
* @var NodeInterface
*/
private $subSelector;
/**
* @param NodeInterface $selector
* @param string $combinator
* @param NodeInterface $subSelector
*/
public function __construct(NodeInterface $selector, $combinator, NodeInterface $subSelector)
{
$this->selector = $selector;
$this->combinator = $combinator;
$this->subselector = $subselector;
$this->subSelector = $subSelector;
}
/**
* {@inheritDoc}
* @return NodeInterface
*/
public function getSelector()
{
return $this->selector;
}
/**
* @return string
*/
public function getCombinator()
{
return $this->combinator;
}
/**
* @return NodeInterface
*/
public function getSubSelector()
{
return $this->subSelector;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->selector->getSpecificity()->plus($this->subSelector->getSpecificity());
}
/**
* {@inheritdoc}
*/
public function __toString()
{
$comb = $this->combinator == ' ' ? '<followed>' : $this->combinator;
$combinator = ' ' === $this->combinator ? '<followed>' : $this->combinator;
return sprintf('%s[%s %s %s]', __CLASS__, $this->selector, $comb, $this->subselector);
}
/**
* {@inheritDoc}
* @throws ParseException When unknown combinator is found
*/
public function toXpath()
{
if (!isset(self::$methodMapping[$this->combinator])) {
throw new ParseException(sprintf('Unknown combinator: %s', $this->combinator));
}
$method = '_xpath_'.self::$methodMapping[$this->combinator];
$path = $this->selector->toXpath();
return $this->$method($path, $this->subselector);
}
/**
* Joins a NodeInterface into the XPath of this object.
*
* @param XPathExpr $xpath The XPath expression for this object
* @param NodeInterface $sub The NodeInterface object to add
*
* @return XPathExpr An XPath instance
*/
protected function _xpath_descendant($xpath, $sub)
{
// when sub is a descendant in any way of xpath
$xpath->join('/descendant::', $sub->toXpath());
return $xpath;
}
/**
* Joins a NodeInterface as a child of this object.
*
* @param XPathExpr $xpath The parent XPath expression
* @param NodeInterface $sub The NodeInterface object to add
*
* @return XPathExpr An XPath instance
*/
protected function _xpath_child($xpath, $sub)
{
// when sub is an immediate child of xpath
$xpath->join('/', $sub->toXpath());
return $xpath;
}
/**
* Joins an XPath expression as an adjacent of another.
*
* @param XPathExpr $xpath The parent XPath expression
* @param NodeInterface $sub The adjacent XPath expression
*
* @return XPathExpr An XPath instance
*/
protected function _xpath_direct_adjacent($xpath, $sub)
{
// when sub immediately follows xpath
$xpath->join('/following-sibling::', $sub->toXpath());
$xpath->addNameTest();
$xpath->addCondition('position() = 1');
return $xpath;
}
/**
* Joins an XPath expression as an indirect adjacent of another.
*
* @param XPathExpr $xpath The parent XPath expression
* @param NodeInterface $sub The indirect adjacent NodeInterface object
*
* @return XPathExpr An XPath instance
*/
protected function _xpath_indirect_adjacent($xpath, $sub)
{
// when sub comes somewhere after xpath as a sibling
$xpath->join('/following-sibling::', $sub->toXpath());
return $xpath;
return sprintf('%s[%s %s %s]', $this->getNodeName(), $this->selector, $combinator, $this->subSelector);
}
}

View File

@ -11,67 +11,67 @@
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\XPathExpr;
/**
* ElementNode represents a "namespace|element" node.
* Represents a "<namespace>|<element>" node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ElementNode implements NodeInterface
class ElementNode extends AbstractNode
{
protected $namespace;
protected $element;
/**
* @var string|null
*/
private $namespace;
/**
* Constructor.
*
* @param string $namespace Namespace
* @param string $element Element
* @var string|null
*/
public function __construct($namespace, $element)
private $element;
/**
* @param string|null $namespace
* @param string|null $element
*/
public function __construct($namespace = null, $element = null)
{
$this->namespace = $namespace;
$this->element = $element;
}
/**
* {@inheritDoc}
* @return null|string
*/
public function getNamespace()
{
return $this->namespace;
}
/**
* @return null|string
*/
public function getElement()
{
return $this->element;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return new Specificity(0, 0, $this->element ? 1 : 0);
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return sprintf('%s[%s]', __CLASS__, $this->formatElement());
}
$element = $this->element ?: '*';
/**
* Formats the element into a string.
*
* @return string Element as an XPath string
*/
public function formatElement()
{
if ($this->namespace == '*') {
return $this->element;
}
return sprintf('%s|%s', $this->namespace, $this->element);
}
/**
* {@inheritDoc}
*/
public function toXpath()
{
if ($this->namespace == '*') {
$el = strtolower($this->element);
} else {
// FIXME: Should we lowercase here?
$el = sprintf('%s:%s', $this->namespace, $this->element);
}
return new XPathExpr(null, null, $el);
return sprintf('%s[%s]', $this->getNodeName(), $this->namespace ? $this->namespace.'|'.$element : $element);
}
}

View File

@ -11,280 +11,86 @@
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\Exception\ParseException;
use Symfony\Component\CssSelector\XPathExpr;
use Symfony\Component\CssSelector\Parser\Token;
/**
* FunctionNode represents a "selector:name(expr)" node.
* Represents a "<selector>:<name>(<arguments>)" node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class FunctionNode implements NodeInterface
class FunctionNode extends AbstractNode
{
protected static $unsupported = array('target', 'lang', 'enabled', 'disabled');
protected $selector;
protected $type;
protected $name;
protected $expr;
/**
* @var NodeInterface
*/
private $selector;
/**
* Constructor.
*
* @param NodeInterface $selector The XPath expression
* @param string $type
* @param string $name
* @param XPathExpr $expr
* @var string
*/
public function __construct($selector, $type, $name, $expr)
private $name;
/**
* @var Token[]
*/
private $arguments;
/**
* @param NodeInterface $selector
* @param string $name
* @param Token[] $arguments
*/
public function __construct(NodeInterface $selector, $name, array $arguments = array())
{
$this->selector = $selector;
$this->type = $type;
$this->name = $name;
$this->expr = $expr;
$this->name = strtolower($name);
$this->arguments = $arguments;
}
/**
* {@inheritDoc}
* @return NodeInterface
*/
public function getSelector()
{
return $this->selector;
}
/**
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* @return Token[]
*/
public function getArguments()
{
return $this->arguments;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->selector->getSpecificity()->plus(new Specificity(0, 1, 0));
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return sprintf('%s[%s%s%s(%s)]', __CLASS__, $this->selector, $this->type, $this->name, $this->expr);
}
$arguments = implode(', ', array_map(function (Token $token) {
return "'".$token->getValue()."'";
}, $this->arguments));
/**
* {@inheritDoc}
* @throws ParseException When unsupported or unknown pseudo-class is found
*/
public function toXpath()
{
$selPath = $this->selector->toXpath();
if (in_array($this->name, self::$unsupported)) {
throw new ParseException(sprintf('The pseudo-class %s is not supported', $this->name));
}
$method = '_xpath_'.str_replace('-', '_', $this->name);
if (!method_exists($this, $method)) {
throw new ParseException(sprintf('The pseudo-class %s is unknown', $this->name));
}
return $this->$method($selPath, $this->expr);
}
/**
* undocumented function
*
* @param XPathExpr $xpath
* @param mixed $expr
* @param Boolean $last
* @param Boolean $addNameTest
*
* @return XPathExpr
*/
protected function _xpath_nth_child($xpath, $expr, $last = false, $addNameTest = true)
{
list($a, $b) = $this->parseSeries($expr);
if (!$a && !$b && !$last) {
// a=0 means nothing is returned...
$xpath->addCondition('false() and position() = 0');
return $xpath;
}
if ($addNameTest) {
$xpath->addNameTest();
}
$xpath->addStarPrefix();
if ($a == 0) {
if ($last) {
$b = sprintf('last() - %s', $b);
}
$xpath->addCondition(sprintf('position() = %s', $b));
return $xpath;
}
if ($last) {
// FIXME: I'm not sure if this is right
$a = -$a;
$b = -$b;
}
if ($b > 0) {
$bNeg = -$b;
} else {
$bNeg = sprintf('+%s', -$b);
}
if ($a != 1) {
$expr = array(sprintf('(position() %s) mod %s = 0', $bNeg, $a));
} else {
$expr = array();
}
if ($b >= 0) {
$expr[] = sprintf('position() >= %s', $b);
} elseif ($b < 0 && $last) {
$expr[] = sprintf('position() < (last() %s)', $b);
}
$expr = implode($expr, ' and ');
if ($expr) {
$xpath->addCondition($expr);
}
return $xpath;
/* FIXME: handle an+b, odd, even
an+b means every-a, plus b, e.g., 2n+1 means odd
0n+b means b
n+0 means a=1, i.e., all elements
an means every a elements, i.e., 2n means even
-n means -1n
-1n+6 means elements 6 and previous */
}
/**
* undocumented function
*
* @param XPathExpr $xpath
* @param XPathExpr $expr
*
* @return XPathExpr
*/
protected function _xpath_nth_last_child($xpath, $expr)
{
return $this->_xpath_nth_child($xpath, $expr, true);
}
/**
* undocumented function
*
* @param XPathExpr $xpath
* @param XPathExpr $expr
*
* @return XPathExpr
*
* @throws ParseException
*/
protected function _xpath_nth_of_type($xpath, $expr)
{
if ($xpath->getElement() == '*') {
throw new ParseException('*:nth-of-type() is not implemented');
}
return $this->_xpath_nth_child($xpath, $expr, false, false);
}
/**
* undocumented function
*
* @param XPathExpr $xpath
* @param XPathExpr $expr
*
* @return XPathExpr
*/
protected function _xpath_nth_last_of_type($xpath, $expr)
{
return $this->_xpath_nth_child($xpath, $expr, true, false);
}
/**
* undocumented function
*
* @param XPathExpr $xpath
* @param XPathExpr $expr
*
* @return XPathExpr
*/
protected function _xpath_contains($xpath, $expr)
{
// text content, minus tags, must contain expr
if ($expr instanceof ElementNode) {
$expr = $expr->formatElement();
}
// FIXME: lower-case is only available with XPath 2
//$xpath->addCondition(sprintf('contains(lower-case(string(.)), %s)', XPathExpr::xpathLiteral(strtolower($expr))));
$xpath->addCondition(sprintf('contains(string(.), %s)', XPathExpr::xpathLiteral($expr)));
// FIXME: Currently case insensitive matching doesn't seem to be happening
return $xpath;
}
/**
* undocumented function
*
* @param XPathExpr $xpath
* @param XPathExpr $expr
*
* @return XPathExpr
*/
protected function _xpath_not($xpath, $expr)
{
// everything for which not expr applies
$expr = $expr->toXpath();
$cond = $expr->getCondition();
// FIXME: should I do something about element_path?
$xpath->addCondition(sprintf('not(%s)', $cond));
return $xpath;
}
/**
* Parses things like '1n+2', or 'an+b' generally, returning (a, b)
*
* @param mixed $s
*
* @return array
*/
protected function parseSeries($s)
{
if ($s instanceof ElementNode) {
$s = $s->formatElement();
}
if (!$s || '*' == $s) {
// Happens when there's nothing, which the CSS parser thinks of as *
return array(0, 0);
}
if ('odd' == $s) {
return array(2, 1);
}
if ('even' == $s) {
return array(2, 0);
}
if ('n' == $s) {
return array(1, 0);
}
if (false === strpos($s, 'n')) {
// Just a b
return array(0, intval((string) $s));
}
list($a, $b) = explode('n', $s);
if (!$a) {
$a = 1;
} elseif ('-' == $a || '+' == $a) {
$a = intval($a.'1');
} else {
$a = intval($a);
}
if (!$b) {
$b = 0;
} elseif ('-' == $b || '+' == $b) {
$b = intval($b.'1');
} else {
$b = intval($b);
}
return array($a, $b);
return sprintf('%s[%s:%s(%s)]', $this->getNodeName(), $this->selector, $this->name, $arguments ? '['.$arguments.']' : '');
}
}

View File

@ -11,49 +11,65 @@
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\XPathExpr;
/**
* HashNode represents a "selector#id" node.
* Represents a "<selector>#<id>" node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class HashNode implements NodeInterface
class HashNode extends AbstractNode
{
protected $selector;
protected $id;
/**
* @var NodeInterface
*/
private $selector;
/**
* Constructor.
*
* @param NodeInterface $selector The NodeInterface object
* @param string $id The ID
* @var string
*/
public function __construct($selector, $id)
private $id;
/**
* @param NodeInterface $selector
* @param string $id
*/
public function __construct(NodeInterface $selector, $id)
{
$this->selector = $selector;
$this->id = $id;
}
/**
* {@inheritDoc}
* @return NodeInterface
*/
public function __toString()
public function getSelector()
{
return sprintf('%s[%s#%s]', __CLASS__, $this->selector, $this->id);
return $this->selector;
}
/**
* {@inheritDoc}
* @return string
*/
public function toXpath()
public function getId()
{
$path = $this->selector->toXpath();
$path->addCondition(sprintf('@id = %s', XPathExpr::xpathLiteral($this->id)));
return $this->id;
}
return $path;
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->selector->getSpecificity()->plus(new Specificity(1, 0, 0));
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return sprintf('%s[%s#%s]', $this->getNodeName(), $this->selector, $this->id);
}
}

View File

@ -0,0 +1,75 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Node;
/**
* Represents a "<selector>:not(<identifier>)" node.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class NegationNode extends AbstractNode
{
/**
* @var NodeInterface
*/
private $selector;
/**
* @var NodeInterface
*/
private $subSelector;
/**
* @param NodeInterface $selector
* @param NodeInterface $subSelector
*/
public function __construct(NodeInterface $selector, NodeInterface $subSelector)
{
$this->selector = $selector;
$this->subSelector = $subSelector;
}
/**
* @return NodeInterface
*/
public function getSelector()
{
return $this->selector;
}
/**
* @return NodeInterface
*/
public function getSubSelector()
{
return $this->subSelector;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->selector->getSpecificity()->plus($this->subSelector->getSpecificity());
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return sprintf('%s[%s:not(%s)]', $this->getNodeName(), $this->selector, $this->subSelector);
}
}

View File

@ -12,26 +12,33 @@
namespace Symfony\Component\CssSelector\Node;
/**
* ClassNode represents a "selector.className" node.
* Interface for nodes.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
interface NodeInterface
{
/**
* Returns a string representation of the object.
* Returns node's name.
*
* @return string The string representation
* @return string
*/
public function __toString();
public function getNodeName();
/**
* @return XPathExpr The XPath expression
* Returns node's specificity.
*
* @throws ParseException When unknown operator is found
* @return Specificity
*/
public function toXpath();
public function getSpecificity();
/**
* Returns node's string representation.
*
* @return string
*/
public function __toString();
}

View File

@ -1,61 +0,0 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\XPathExprOr;
/**
* OrNode represents a "Or" node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class OrNode implements NodeInterface
{
/**
* @var NodeInterface[]
*/
protected $items;
/**
* Constructor.
*
* @param NodeInterface[] $items An array of NodeInterface objects
*/
public function __construct($items)
{
$this->items = $items;
}
/**
* {@inheritDoc}
*/
public function __toString()
{
return sprintf('%s(%s)', __CLASS__, $this->items);
}
/**
* {@inheritDoc}
*/
public function toXpath()
{
$paths = array();
foreach ($this->items as $item) {
$paths[] = $item->toXpath();
}
return new XPathExprOr($paths);
}
}

View File

@ -11,221 +11,65 @@
namespace Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\Exception\ParseException;
use Symfony\Component\CssSelector\XPathExpr;
/**
* PseudoNode represents a "selector:ident" node.
* Represents a "<selector>:<identifier>" node.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class PseudoNode implements NodeInterface
class PseudoNode extends AbstractNode
{
protected static $unsupported = array(
'indeterminate', 'first-line', 'first-letter',
'selection', 'before', 'after', 'link', 'visited',
'active', 'focus', 'hover',
);
protected $element;
protected $type;
protected $ident;
/**
* @var NodeInterface
*/
private $selector;
/**
* Constructor.
*
* @param NodeInterface $element The NodeInterface element
* @param string $type Node type
* @param string $ident The ident
*
* @throws ParseException When incorrect PseudoNode type is given
* @var string
*/
public function __construct($element, $type, $ident)
private $identifier;
/**
* @param NodeInterface $selector
* @param string $identifier
*/
public function __construct(NodeInterface $selector, $identifier)
{
$this->element = $element;
if (!in_array($type, array(':', '::'))) {
throw new ParseException(sprintf('The PseudoNode type can only be : or :: (%s given).', $type));
}
$this->type = $type;
$this->ident = $ident;
$this->selector = $selector;
$this->identifier = strtolower($identifier);
}
/**
* {@inheritDoc}
* @return NodeInterface
*/
public function getSelector()
{
return $this->selector;
}
/**
* @return string
*/
public function getIdentifier()
{
return $this->identifier;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->selector->getSpecificity()->plus(new Specificity(0, 1, 0));
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return sprintf('%s[%s%s%s]', __CLASS__, $this->element, $this->type, $this->ident);
}
/**
* {@inheritDoc}
* @throws ParseException When unsupported or unknown pseudo-class is found
*/
public function toXpath()
{
$elXpath = $this->element->toXpath();
if (in_array($this->ident, self::$unsupported)) {
throw new ParseException(sprintf('The pseudo-class %s is unsupported', $this->ident));
}
$method = 'xpath_'.str_replace('-', '_', $this->ident);
if (!method_exists($this, $method)) {
throw new ParseException(sprintf('The pseudo-class %s is unknown', $this->ident));
}
return $this->$method($elXpath);
}
/**
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified XPath expression
*/
protected function xpath_checked($xpath)
{
// FIXME: is this really all the elements?
$xpath->addCondition("(@selected or @checked) and (name(.) = 'input' or name(.) = 'option')");
return $xpath;
}
/**
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified XPath expression
*
* @throws ParseException If this element is the root element
*/
protected function xpath_root($xpath)
{
// if this element is the root element
throw new ParseException();
}
/**
* Marks this XPath expression as the first child.
*
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified expression
*/
protected function xpath_first_child($xpath)
{
$xpath->addStarPrefix();
$xpath->addNameTest();
$xpath->addCondition('position() = 1');
return $xpath;
}
/**
* Sets the XPath to be the last child.
*
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified expression
*/
protected function xpath_last_child($xpath)
{
$xpath->addStarPrefix();
$xpath->addNameTest();
$xpath->addCondition('position() = last()');
return $xpath;
}
/**
* Sets the XPath expression to be the first of type.
*
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified expression
*
* @throws ParseException
*/
protected function xpath_first_of_type($xpath)
{
if ($xpath->getElement() == '*') {
throw new ParseException('*:first-of-type is not implemented');
}
$xpath->addStarPrefix();
$xpath->addCondition('position() = 1');
return $xpath;
}
/**
* Sets the XPath expression to be the last of type.
*
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified expression
*
* @throws ParseException Because *:last-of-type is not implemented
*/
protected function xpath_last_of_type($xpath)
{
if ($xpath->getElement() == '*') {
throw new ParseException('*:last-of-type is not implemented');
}
$xpath->addStarPrefix();
$xpath->addCondition('position() = last()');
return $xpath;
}
/**
* Sets the XPath expression to be the only child.
*
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified expression
*/
protected function xpath_only_child($xpath)
{
$xpath->addNameTest();
$xpath->addStarPrefix();
$xpath->addCondition('last() = 1');
return $xpath;
}
/**
* Sets the XPath expression to be only of type.
*
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified expression
*
* @throws ParseException Because *:only-of-type is not implemented
*/
protected function xpath_only_of_type($xpath)
{
if ($xpath->getElement() == '*') {
throw new ParseException('*:only-of-type is not implemented');
}
$xpath->addCondition('last() = 1');
return $xpath;
}
/**
* undocumented function
*
* @param XPathExpr $xpath The XPath expression
*
* @return XPathExpr The modified expression
*/
protected function xpath_empty($xpath)
{
$xpath->addCondition('not(*) and not(normalize-space())');
return $xpath;
return sprintf('%s[%s:%s]', $this->getNodeName(), $this->selector, $this->identifier);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Node;
/**
* Represents a "<selector>(::|:)<pseudoElement>" node.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class SelectorNode extends AbstractNode
{
/**
* @var NodeInterface
*/
private $tree;
/**
* @var null|string
*/
private $pseudoElement;
/**
* @param NodeInterface $tree
* @param null|string $pseudoElement
*/
public function __construct(NodeInterface $tree, $pseudoElement = null)
{
$this->tree = $tree;
$this->pseudoElement = $pseudoElement ? strtolower($pseudoElement) : null;
}
/**
* @return NodeInterface
*/
public function getTree()
{
return $this->tree;
}
/**
* @return null|string
*/
public function getPseudoElement()
{
return $this->pseudoElement;
}
/**
* {@inheritdoc}
*/
public function getSpecificity()
{
return $this->tree->getSpecificity()->plus(new Specificity(0, 0, $this->pseudoElement ? 1 : 0));
}
/**
* {@inheritdoc}
*/
public function __toString()
{
return sprintf('%s[%s%s]', $this->getNodeName(), $this->tree, $this->pseudoElement ? '::'.$this->pseudoElement : '');
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Node;
/**
* Represents a node specificity.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @see http://www.w3.org/TR/selectors/#specificity
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class Specificity
{
const A_FACTOR = 100;
const B_FACTOR = 10;
const C_FACTOR = 1;
/**
* @var int
*/
private $a;
/**
* @var int
*/
private $b;
/**
* @var int
*/
private $c;
/**
* Constructor.
*
* @param int $a
* @param int $b
* @param int $c
*/
public function __construct($a, $b, $c)
{
$this->a = $a;
$this->b = $b;
$this->c = $c;
}
/**
* @param Specificity $specificity
*
* @return Specificity
*/
public function plus(Specificity $specificity)
{
return new self($this->a + $specificity->a, $this->b + $specificity->b, $this->c + $specificity->c);
}
/**
* Returns global specificity value.
*
* @return int
*/
public function getValue()
{
return $this->a * self::A_FACTOR + $this->b * self::B_FACTOR + $this->c * self::C_FACTOR;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
/**
* CSS selector comment handler.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class CommentHandler implements HandlerInterface
{
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
if ('/*' !== $reader->getSubstring(2)) {
return false;
}
$offset = $reader->getOffset('*/');
if (false === $offset) {
$reader->moveToEnd();
} else {
$reader->moveForward($offset + 2);
}
return true;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
/**
* CSS selector handler interface.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
interface HandlerInterface
{
/**
* @param Reader $reader
* @param TokenStream $stream
*
* @return boolean
*/
public function handle(Reader $reader, TokenStream $stream);
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
/**
* CSS selector comment handler.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class HashHandler implements HandlerInterface
{
/**
* @var TokenizerPatterns
*/
private $patterns;
/**
* @var TokenizerEscaping
*/
private $escaping;
/**
* @param TokenizerPatterns $patterns
* @param TokenizerEscaping $escaping
*/
public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
{
$this->patterns = $patterns;
$this->escaping = $escaping;
}
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$match = $reader->findPattern($this->patterns->getHashPattern());
if (!$match) {
return false;
}
$value = $this->escaping->escapeUnicode($match[1]);
$stream->push(new Token(Token::TYPE_HASH, $value, $reader->getPosition()));
$reader->moveForward(strlen($match[0]));
return true;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
/**
* CSS selector comment handler.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class IdentifierHandler implements HandlerInterface
{
/**
* @var TokenizerPatterns
*/
private $patterns;
/**
* @var TokenizerEscaping
*/
private $escaping;
/**
* @param TokenizerPatterns $patterns
* @param TokenizerEscaping $escaping
*/
public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
{
$this->patterns = $patterns;
$this->escaping = $escaping;
}
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$match = $reader->findPattern($this->patterns->getIdentifierPattern());
if (!$match) {
return false;
}
$value = $this->escaping->escapeUnicode($match[0]);
$stream->push(new Token(Token::TYPE_IDENTIFIER, $value, $reader->getPosition()));
$reader->moveForward(strlen($match[0]));
return true;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
/**
* CSS selector comment handler.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class NumberHandler implements HandlerInterface
{
/**
* @var TokenizerPatterns
*/
private $patterns;
/**
* @param TokenizerPatterns $patterns
*/
public function __construct(TokenizerPatterns $patterns)
{
$this->patterns = $patterns;
}
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$match = $reader->findPattern($this->patterns->getNumberPattern());
if (!$match) {
return false;
}
$stream->push(new Token(Token::TYPE_NUMBER, $match[0], $reader->getPosition()));
$reader->moveForward(strlen($match[0]));
return true;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Exception\InternalErrorException;
use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
/**
* CSS selector comment handler.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class StringHandler implements HandlerInterface
{
/**
* @var TokenizerPatterns
*/
private $patterns;
/**
* @var TokenizerEscaping
*/
private $escaping;
/**
* @param TokenizerPatterns $patterns
* @param TokenizerEscaping $escaping
*/
public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
{
$this->patterns = $patterns;
$this->escaping = $escaping;
}
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$quote = $reader->getSubstring(1);
if (!in_array($quote, array("'", '"'))) {
return false;
}
$reader->moveForward(1);
$match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));
if (!$match) {
throw new InternalErrorException('Should have found at least an empty match at '.$reader->getPosition().'.');
}
// check unclosed strings
if (strlen($match[0]) === $reader->getRemainingLength()) {
throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
}
// check quotes pairs validity
if ($quote !== $reader->getSubstring(1, strlen($match[0]))) {
throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
}
$string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
$stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
$reader->moveForward(strlen($match[0]) + 1);
return true;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
/**
* CSS selector whitespace handler.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class WhitespaceHandler implements HandlerInterface
{
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$match = $reader->findPattern('~^[ \t\r\n\f]+~');
if (false === $match) {
return false;
}
$stream->push(new Token(Token::TYPE_WHITESPACE, $match[0], $reader->getPosition()));
$reader->moveForward(strlen($match[0]));
return true;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser;
use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
use Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\Parser\Shortcut;
use Symfony\Component\CssSelector\Parser\Tokenizer\Tokenizer;
/**
* CSS selector parser.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class Parser implements ParserInterface
{
/**
* @var Tokenizer
*/
private $tokenizer;
/**
* Constructor.
*
* @param null|Tokenizer $tokenizer
*/
public function __construct(Tokenizer $tokenizer = null)
{
$this->tokenizer = $tokenizer ?: new Tokenizer();
}
/**
* {@inheritdoc}
*/
public function parse($source)
{
$reader = new Reader($source);
$stream = $this->tokenizer->tokenize($reader);
return $this->parseSelectorList($stream);
}
/**
* Parses the arguments for ":nth-child()" and friends.
*
* @param Token[] $tokens
*
* @throws SyntaxErrorException
*
* @return array
*/
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
);
}
/**
* Parses selector nodes.
*
* @param TokenStream $stream
*
* @return array
*/
private function parseSelectorList(TokenStream $stream)
{
$stream->skipWhitespace();
$selectors = array();
while (true) {
$selectors[] = $this->parserSelectorNode($stream);
if ($stream->getPeek()->isDelimiter(array(','))) {
$stream->getNext();
$stream->skipWhitespace();
} else {
break;
}
}
return $selectors;
}
/**
* Parses next selector or combined node.
*
* @param TokenStream $stream
*
* @throws SyntaxErrorException
*
* @return Node\SelectorNode
*/
private function parserSelectorNode(TokenStream $stream)
{
list($result, $pseudoElement) = $this->parseSimpleSelector($stream);
while (true) {
$stream->skipWhitespace();
$peek = $stream->getPeek();
if ($peek->isFileEnd() || $peek->isDelimiter(array(','))) {
break;
}
if (null !== $pseudoElement) {
throw SyntaxErrorException::pseudoElementFound($pseudoElement, 'not at the end of a selector');
}
if ($peek->isDelimiter(array('+', '>', '~'))) {
$combinator = $stream->getNext()->getValue();
$stream->skipWhitespace();
} else {
$combinator = ' ';
}
list($nextSelector, $pseudoElement) = $this->parseSimpleSelector($stream);
$result = new Node\CombinedSelectorNode($result, $combinator, $nextSelector);
}
return new Node\SelectorNode($result, $pseudoElement);
}
/**
* Parses next simple node (hash, class, pseudo, negation).
*
* @param TokenStream $stream
* @param boolean $insideNegation
*
* @throws SyntaxErrorException
*
* @return array
*/
private function parseSimpleSelector(TokenStream $stream, $insideNegation = false)
{
$stream->skipWhitespace();
$selectorStart = count($stream->getUsed());
$result = $this->parseElementNode($stream);
$pseudoElement = null;
while (true) {
$peek = $stream->getPeek();
if ($peek->isWhitespace()
|| $peek->isFileEnd()
|| $peek->isDelimiter(array(',', '+', '>', '~'))
|| ($insideNegation && $peek->isDelimiter(array(')')))
) {
break;
}
if (null !== $pseudoElement) {
throw SyntaxErrorException::pseudoElementFound($pseudoElement, 'not at the end of a selector');
}
if ($peek->isHash()) {
$result = new Node\HashNode($result, $stream->getNext()->getValue());
} elseif ($peek->isDelimiter(array('.'))) {
$stream->getNext();
$result = new Node\ClassNode($result, $stream->getNextIdentifier());
} elseif ($peek->isDelimiter(array('['))) {
$stream->getNext();
$result = $this->parseAttributeNode($result, $stream);
} elseif ($peek->isDelimiter(array(':'))) {
$stream->getNext();
if ($stream->getPeek()->isDelimiter(array(':'))) {
$stream->getNext();
$pseudoElement = $stream->getNextIdentifier();
continue;
}
$identifier = $stream->getNextIdentifier();
if (in_array(strtolower($identifier), array('first-line', 'first-letter', 'before', 'after'))) {
// Special case: CSS 2.1 pseudo-elements can have a single ':'.
// Any new pseudo-element must have two.
$pseudoElement = $identifier;
continue;
}
if (!$stream->getPeek()->isDelimiter(array('('))) {
$result = new Node\PseudoNode($result, $identifier);
continue;
}
$stream->getNext();
$stream->skipWhitespace();
if ('not' === strtolower($identifier)) {
if ($insideNegation) {
throw SyntaxErrorException::nestedNot();
}
list($argument, $argumentPseudoElement) = $this->parseSimpleSelector($stream, true);
$next = $stream->getNext();
if (null !== $argumentPseudoElement) {
throw SyntaxErrorException::pseudoElementFound($argumentPseudoElement, 'inside ::not()');
}
if (!$next->isDelimiter(array(')'))) {
throw SyntaxErrorException::unexpectedToken('")"', $next);
}
$result = new Node\NegationNode($result, $argument);
} else {
$arguments = array();
$next = null;
while (true) {
$stream->skipWhitespace();
$next = $stream->getNext();
if ($next->isIdentifier()
|| $next->isString()
|| $next->isNumber()
|| $next->isDelimiter(array('+', '-'))
) {
$arguments[] = $next;
} elseif ($next->isDelimiter(array(')'))) {
break;
} else {
throw SyntaxErrorException::unexpectedToken('an argument', $next);
}
}
if (empty($arguments)) {
throw SyntaxErrorException::unexpectedToken('at least one argument', $next);
}
$result = new Node\FunctionNode($result, $identifier, $arguments);
}
} else {
throw SyntaxErrorException::unexpectedToken('selector', $peek);
}
}
if (count($stream->getUsed()) === $selectorStart) {
throw SyntaxErrorException::unexpectedToken('selector', $stream->getPeek());
}
return array($result, $pseudoElement);
}
/**
* Parses next element node.
*
* @param TokenStream $stream
*
* @return Node\ElementNode
*/
private function parseElementNode(TokenStream $stream)
{
$peek = $stream->getPeek();
if ($peek->isIdentifier() || $peek->isDelimiter(array('*'))) {
if ($peek->isIdentifier()) {
$namespace = $stream->getNext()->getValue();
} else {
$stream->getNext();
$namespace = null;
}
if ($stream->getPeek()->isDelimiter(array('|'))) {
$stream->getNext();
$element = $stream->getNextIdentifierOrStar();
} else {
$element = $namespace;
$namespace = null;
}
} else {
$element = $namespace = null;
}
return new Node\ElementNode($namespace, $element);
}
/**
* Parses next attribute node.
*
* @param Node\NodeInterface $selector
* @param TokenStream $stream
*
* @throws SyntaxErrorException
*
* @return Node\AttributeNode
*/
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->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());
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser;
use Symfony\Component\CssSelector\Node\SelectorNode;
/**
* CSS selector parser interface.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
interface ParserInterface
{
/**
* Parses given selector source into an array of tokens.
*
* @param string $source
*
* @return SelectorNode[]
*/
public function parse($source);
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser;
/**
* CSS selector reader.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class Reader
{
/**
* @var string
*/
private $source;
/**
* @var int
*/
private $length;
/**
* @var int
*/
private $position;
/**
* @param string $source
*/
public function __construct($source)
{
$this->source = $source;
$this->length = strlen($source);
$this->position = 0;
}
/**
* @return bool
*/
public function isEOF()
{
return $this->position >= $this->length;
}
/**
* @return int
*/
public function getPosition()
{
return $this->position;
}
/**
* @return int
*/
public function getRemainingLength()
{
return $this->length - $this->position;
}
/**
* @param int $length
* @param int $offset
*
* @return string
*/
public function getSubstring($length, $offset = 0)
{
return substr($this->source, $this->position + $offset, $length);
}
/**
* @param string $string
*
* @return int
*/
public function getOffset($string)
{
$position = strpos($this->source, $string, $this->position);
return false === $position ? false : $position - $this->position;
}
/**
* @param string $pattern
*
* @return bool
*/
public function findPattern($pattern)
{
$source = substr($this->source, $this->position);
if (preg_match($pattern, $source, $matches)) {
return $matches;
}
return false;
}
/**
* @param int $length
*/
public function moveForward($length)
{
$this->position += $length;
}
/**
*/
public function moveToEnd()
{
$this->position = $this->length;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Shortcut;
use Symfony\Component\CssSelector\Node\ClassNode;
use Symfony\Component\CssSelector\Node\ElementNode;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\ParserInterface;
use Symfony\Component\CssSelector\Parser\Token;
/**
* CSS selector class parser shortcut.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ClassParser implements ParserInterface
{
/**
* {@inheritdoc}
*/
public function parse($source)
{
// matches "<selector>.<name>"
if (preg_match('~^[ \t\r\n\f]*([a-zA-Z]*)\.([a-zA-Z][a-zA-Z0-9_-]*)[ \t\r\n\f]*$~', $source, $matches)) {
return array(new SelectorNode(new ClassNode(new ElementNode($matches[1] ?: null), $matches[2])));
}
return array();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Shortcut;
use Symfony\Component\CssSelector\Node\ElementNode;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\ParserInterface;
use Symfony\Component\CssSelector\Parser\Token;
/**
* CSS selector element parser shortcut.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ElementParser implements ParserInterface
{
/**
* {@inheritdoc}
*/
public function parse($source)
{
// matches "<element>"
if (preg_match('~^[ \t\r\n\f]*([a-zA-Z][a-zA-Z0-9_-]*|\\*)[ \t\r\n\f]*$~', $source, $matches)) {
return array(new SelectorNode(new ElementNode(null, $matches[1])));
}
return array();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Shortcut;
use Symfony\Component\CssSelector\Node\ElementNode;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\ParserInterface;
use Symfony\Component\CssSelector\Parser\Token;
/**
* CSS selector class parser shortcut.
*
* This shortcut ensure compatibility with previous version.
* - The parser fails to parse an empty string.
* - In the previous version, an empty string matches each tags.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class EmptyStringParser implements ParserInterface
{
/**
* {@inheritdoc}
*/
public function parse($source)
{
// matches ""
if (preg_match('~^$~', $source, $matches)) {
return array(new SelectorNode(new ElementNode(null, '*')));
}
return array();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Shortcut;
use Symfony\Component\CssSelector\Node\ElementNode;
use Symfony\Component\CssSelector\Node\HashNode;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\ParserInterface;
use Symfony\Component\CssSelector\Parser\Token;
/**
* CSS selector hash parser shortcut.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class HashParser implements ParserInterface
{
/**
* {@inheritdoc}
*/
public function parse($source)
{
// matches "<selector>#<id>"
if (preg_match('~^[ \t\r\n\f]*([a-zA-Z][a-zA-Z0-9_-]*|\\*)?#([a-zA-Z0-9_-]+)[ \t\r\n\f]*$~', $source, $matches)) {
return array(new SelectorNode(new HashNode(new ElementNode(null, $matches[1] ?: null), $matches[2])));
}
return array();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser;
/**
* CSS selector token.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class Token
{
const TYPE_FILE_END = 'eof';
const TYPE_DELIMITER = 'delimiter';
const TYPE_WHITESPACE = 'whitespace';
const TYPE_IDENTIFIER = 'identifier';
const TYPE_HASH = 'hash';
const TYPE_NUMBER = 'number';
const TYPE_STRING = 'string';
/**
* @var int
*/
private $type;
/**
* @var string
*/
private $value;
/**
* @var int
*/
private $position;
/**
* @param int $type
* @param string $value
* @param int $position
*/
public function __construct($type, $value, $position)
{
$this->type = $type;
$this->value = $value;
$this->position = $position;
}
/**
* @return int
*/
public function getType()
{
return $this->type;
}
/**
* @return string
*/
public function getValue()
{
return $this->value;
}
/**
* @return int
*/
public function getPosition()
{
return $this->position;
}
/**
* @return boolean
*/
public function isFileEnd()
{
return self::TYPE_FILE_END === $this->type;
}
/**
* @param array $values
*
* @return boolean
*/
public function isDelimiter(array $values = array())
{
if (self::TYPE_DELIMITER !== $this->type) {
return false;
}
if (empty($values)) {
return true;
}
return in_array($this->value, $values);
}
/**
* @return boolean
*/
public function isWhitespace()
{
return self::TYPE_WHITESPACE === $this->type;
}
/**
* @return boolean
*/
public function isIdentifier()
{
return self::TYPE_IDENTIFIER === $this->type;
}
/**
* @return boolean
*/
public function isHash()
{
return self::TYPE_HASH === $this->type;
}
/**
* @return boolean
*/
public function isNumber()
{
return self::TYPE_NUMBER === $this->type;
}
/**
* @return boolean
*/
public function isString()
{
return self::TYPE_STRING === $this->type;
}
/**
* @return string
*/
public function __toString()
{
if ($this->value) {
return sprintf('<%s "%s" at %s>', $this->type, $this->value, $this->position);
}
return sprintf('<%s at %s>', $this->type, $this->position);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser;
use Symfony\Component\CssSelector\Exception\InternalErrorException;
use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
/**
* CSS selector token stream.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class TokenStream
{
/**
* @var Token[]
*/
private $tokens = array();
/**
* @var boolean
*/
private $frozen = false;
/**
* @var Token[]
*/
private $used = array();
/**
* @var int
*/
private $cursor = 0;
/**
* @var Token|null
*/
private $peeked = null;
/**
* @var boolean
*/
private $peeking = false;
/**
* Pushes a token.
*
* @param Token $token
*
* @return TokenStream
*/
public function push(Token $token)
{
$this->tokens[] = $token;
return $this;
}
/**
* Freezes stream.
*
* @return TokenStream
*/
public function freeze()
{
$this->frozen = true;
return $this;
}
/**
* Returns next token.
*
* @throws InternalErrorException If there is no more token
*
* @return Token
*/
public function getNext()
{
if ($this->peeking) {
$this->peeking = false;
$this->used[] = $this->peeked;
return $this->peeked;
}
if (!isset($this->tokens[$this->cursor])) {
throw new InternalErrorException('Unexpected token stream end.');
}
return $this->tokens[$this->cursor ++];
}
/**
* Returns peeked token.
*
* @return Token
*/
public function getPeek()
{
if (!$this->peeking) {
$this->peeked = $this->getNext();
$this->peeking = true;
}
return $this->peeked;
}
/**
* Returns used tokens.
*
* @return Token[]
*/
public function getUsed()
{
return $this->used;
}
/**
* Returns nex identifier token.
*
* @throws SyntaxErrorException If next token is not an identifier
*
* @return string The identifier token value
*/
public function getNextIdentifier()
{
$next = $this->getNext();
if (!$next->isIdentifier()) {
throw SyntaxErrorException::unexpectedToken('identifier', $next);
}
return $next->getValue();
}
/**
* Returns nex identifier or star delimiter token.
*
* @throws SyntaxErrorException If next token is not an identifier or a star delimiter
*
* @return null|string The identifier token value or null if star found
*/
public function getNextIdentifierOrStar()
{
$next = $this->getNext();
if ($next->isIdentifier()) {
return $next->getValue();
}
if ($next->isDelimiter(array('*'))) {
return null;
}
throw SyntaxErrorException::unexpectedToken('identifier or "*"', $next);
}
/**
* Skips next whitespace if any.
*/
public function skipWhitespace()
{
$peek = $this->getPeek();
if ($peek->isWhitespace()) {
$this->getNext();
}
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Tokenizer;
use Symfony\Component\CssSelector\Parser\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
/**
* CSS selector tokenizer.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class Tokenizer
{
/**
* @var Handler\HandlerInterface[]
*/
private $handlers;
/**
* Constructor.
*/
public function __construct()
{
$patterns = new TokenizerPatterns();
$escaping = new TokenizerEscaping($patterns);
$this->handlers = array(
new Handler\WhitespaceHandler(),
new Handler\IdentifierHandler($patterns, $escaping),
new Handler\HashHandler($patterns, $escaping),
new Handler\StringHandler($patterns, $escaping),
new Handler\NumberHandler($patterns),
new Handler\CommentHandler(),
);
}
/**
* Tokenize selector source code.
*
* @param Reader $reader
*
* @return TokenStream
*/
public function tokenize(Reader $reader)
{
$stream = new TokenStream();
while (!$reader->isEOF()) {
foreach ($this->handlers as $handler) {
if ($handler->handle($reader, $stream)) {
continue 2;
}
}
$stream->push(new Token(Token::TYPE_DELIMITER, $reader->getSubstring(1), $reader->getPosition()));
$reader->moveForward(1);
}
return $stream
->push(new Token(Token::TYPE_FILE_END, null, $reader->getPosition()))
->freeze();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Tokenizer;
/**
* CSS selector tokenizer escaping applier.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class TokenizerEscaping
{
/**
* @var TokenizerPatterns
*/
private $patterns;
/**
* @param TokenizerPatterns $patterns
*/
public function __construct(TokenizerPatterns $patterns)
{
$this->patterns = $patterns;
}
/**
* @param string $value
*
* @return string
*/
public function escapeUnicode($value)
{
$value = $this->replaceUnicodeSequences($value);
return preg_replace($this->patterns->getSimpleEscapePattern(), '$1', $value);
}
/**
* @param string $value
*
* @return string
*/
public function escapeUnicodeAndNewLine($value)
{
$value = preg_replace($this->patterns->getNewLineEscapePattern(), '', $value);
return $this->escapeUnicode($value);
}
/**
* @param string $value
*
* @return string
*/
private function replaceUnicodeSequences($value)
{
return preg_replace_callback($this->patterns->getUnicodeEscapePattern(), function (array $match) {
$code = $match[1];
if (bin2hex($code) > 0xFFFD) {
$code = '\\FFFD';
}
return mb_convert_encoding(pack('H*', $code), 'UTF-8', 'UCS-2BE');
}, $value);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Parser\Tokenizer;
/**
* CSS selector tokenizer patterns builder.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class TokenizerPatterns
{
/**
* @var string
*/
private $unicodeEscapePattern;
/**
* @var string
*/
private $simpleEscapePattern;
/**
* @var string
*/
private $newLineEscapePattern;
/**
* @var string
*/
private $escapePattern;
/**
* @var string
*/
private $stringEscapePattern;
/**
* @var string
*/
private $nonAsciiPattern;
/**
* @var string
*/
private $nmCharPattern;
/**
* @var string
*/
private $nmStartPattern;
/**
* @var string
*/
private $identifierPattern;
/**
* @var string
*/
private $hashPattern;
/**
* @var string
*/
private $numberPattern;
/**
* @var string
*/
private $quotedStringPattern;
/**
* Constructor.
*/
public function __construct()
{
$this->unicodeEscapePattern = '\\\\([0-9a-f]{1,6})(?:\r\n|[ \n\r\t\f])?';
$this->simpleEscapePattern = '\\\\(.)';
$this->newLineEscapePattern = '\\\\(?:\n|\r\n|\r|\f)';
$this->escapePattern = $this->unicodeEscapePattern.'|\\\\[^\n\r\f0-9a-f]';
$this->stringEscapePattern = $this->newLineEscapePattern.'|'.$this->escapePattern;
$this->nonAsciiPattern = '[^\x00-\x7F]';
$this->nmCharPattern = '[_a-z0-9-]|'.$this->escapePattern.'|'.$this->nonAsciiPattern;
$this->nmStartPattern = '[_a-z]|'.$this->escapePattern.'|'.$this->nonAsciiPattern;
$this->identifierPattern = '(?:'.$this->nmStartPattern.')(?:'.$this->nmCharPattern.')*';
$this->hashPattern = '#((?:'.$this->nmCharPattern.')+)';
$this->numberPattern = '[+-]?(?:[0-9]*\.[0-9]+|[0-9]+)';
$this->quotedStringPattern = '([^\n\r\f%s]|'.$this->stringEscapePattern.')*';
}
/**
* @return string
*/
public function getNewLineEscapePattern()
{
return '~^'.$this->newLineEscapePattern.'~';
}
/**
* @return string
*/
public function getSimpleEscapePattern()
{
return '~^'.$this->simpleEscapePattern.'~';
}
/**
* @return string
*/
public function getUnicodeEscapePattern()
{
return '~^'.$this->unicodeEscapePattern.'~i';
}
/**
* @return string
*/
public function getIdentifierPattern()
{
return '~^'.$this->identifierPattern.'~i';
}
/**
* @return string
*/
public function getHashPattern()
{
return '~^'.$this->hashPattern.'~i';
}
/**
* @return string
*/
public function getNumberPattern()
{
return '~^'.$this->numberPattern.'~';
}
/**
* @param string $quote
*
* @return string
*/
public function getQuotedStringPattern($quote)
{
return '~^'.sprintf($this->quotedStringPattern, $quote).'~i';
}
}

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@ -1,71 +0,0 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests;
use Symfony\Component\CssSelector\CssSelector;
class CssSelectorTest extends \PHPUnit_Framework_TestCase
{
public function testCsstoXPath()
{
$this->assertEquals('descendant-or-self::*', CssSelector::toXPath(''));
$this->assertEquals('descendant-or-self::h1', CssSelector::toXPath('h1'));
$this->assertEquals("descendant-or-self::h1[@id = 'foo']", CssSelector::toXPath('h1#foo'));
$this->assertEquals("descendant-or-self::h1[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]", CssSelector::toXPath('h1.foo'));
$this->assertEquals('descendant-or-self::foo:h1', CssSelector::toXPath('foo|h1'));
}
/**
* @dataProvider getCssSelectors
*/
public function testParse($css, $xpath)
{
$parser = new CssSelector();
$this->assertEquals($xpath, (string) $parser->parse($css)->toXPath(), '->parse() parses an input string and returns a node');
}
public function testParseExceptions()
{
$parser = new CssSelector();
try {
$parser->parse('h1:');
$this->fail('->parse() throws an Exception if the css selector is not valid');
} catch (\Exception $e) {
$this->assertInstanceOf('\Symfony\Component\CssSelector\Exception\ParseException', $e, '->parse() throws an Exception if the css selector is not valid');
$this->assertEquals("Expected symbol, got '' at h1: -> ", $e->getMessage(), '->parse() throws an Exception if the css selector is not valid');
}
}
public function getCssSelectors()
{
return array(
array('h1', "h1"),
array('foo|h1', "foo:h1"),
array('h1, h2, h3', "h1 | h2 | h3"),
array('h1:nth-child(3n+1)', "*/*[name() = 'h1' and ((position() -1) mod 3 = 0 and position() >= 1)]"),
array('h1 > p', "h1/p"),
array('h1#foo', "h1[@id = 'foo']"),
array('h1.foo', "h1[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
array('h1[class*="foo bar"]', "h1[contains(@class, 'foo bar')]"),
array('h1[foo|class*="foo bar"]', "h1[contains(@foo:class, 'foo bar')]"),
array('h1[class]', "h1[@class]"),
array('h1 .foo', "h1/descendant::*[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
array('h1 #foo', "h1/descendant::*[@id = 'foo']"),
array('h1 [class*=foo]', "h1/descendant::*[contains(@class, 'foo')]"),
array('div>.foo', "div/*[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
array('div > .foo', "div/*[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]"),
);
}
}

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@ -0,0 +1,32 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\NodeInterface;
abstract class AbstractNodeTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getToStringConversionTestData */
public function testToStringConversion(NodeInterface $node, $representation)
{
$this->assertEquals($representation, (string) $node);
}
/** @dataProvider getSpecificityValueTestData */
public function testSpecificityValue(NodeInterface $node, $value)
{
$this->assertEquals($value, $node->getSpecificity()->getValue());
}
abstract public function getToStringConversionTestData();
abstract public function getSpecificityValueTestData();
}

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@ -1,43 +0,0 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\AttribNode;
use Symfony\Component\CssSelector\Node\ElementNode;
class AttribNodeTest extends \PHPUnit_Framework_TestCase
{
public function testToXpath()
{
$element = new ElementNode('*', 'h1');
$operators = array(
'^=' => "h1[starts-with(@class, 'foo')]",
'$=' => "h1[substring(@class, string-length(@class)-2) = 'foo']",
'*=' => "h1[contains(@class, 'foo')]",
'=' => "h1[@class = 'foo']",
'~=' => "h1[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]",
'|=' => "h1[@class = 'foo' or starts-with(@class, 'foo-')]",
'!=' => "h1[not(@class) or @class != 'foo']",
);
// h1[class??foo]
foreach ($operators as $op => $xpath) {
$attrib = new AttribNode($element, '*', 'class', $op, 'foo');
$this->assertEquals($xpath, (string) $attrib->toXpath(), '->toXpath() returns the xpath representation of the node');
}
// h1[class]
$attrib = new AttribNode($element, '*', 'class', 'exists', 'foo');
$this->assertEquals('h1[@class]', (string) $attrib->toXpath(), '->toXpath() returns the xpath representation of the node');
}
}

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@ -0,0 +1,37 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\AttributeNode;
use Symfony\Component\CssSelector\Node\ElementNode;
class AttributeNodeTest extends AbstractNodeTest
{
public function getToStringConversionTestData()
{
return array(
array(new AttributeNode(new ElementNode(), null, 'attribute', 'exists', null), 'Attribute[Element[*][attribute]]'),
array(new AttributeNode(new ElementNode(), null, 'attribute', '$=', 'value'), "Attribute[Element[*][attribute $= 'value']]"),
array(new AttributeNode(new ElementNode(), 'namespace', 'attribute', '$=', 'value'), "Attribute[Element[*][namespace|attribute $= 'value']]"),
);
}
public function getSpecificityValueTestData()
{
return array(
array(new AttributeNode(new ElementNode(), null, 'attribute', 'exists', null), 10),
array(new AttributeNode(new ElementNode(null, 'element'), null, 'attribute', 'exists', null), 11),
array(new AttributeNode(new ElementNode(), null, 'attribute', '$=', 'value'), 10),
array(new AttributeNode(new ElementNode(), 'namespace', 'attribute', '$=', 'value'), 10),
);
}
}

View File

@ -14,14 +14,20 @@ namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\ClassNode;
use Symfony\Component\CssSelector\Node\ElementNode;
class ClassNodeTest extends \PHPUnit_Framework_TestCase
class ClassNodeTest extends AbstractNodeTest
{
public function testToXpath()
public function getToStringConversionTestData()
{
// h1.foo
$element = new ElementNode('*', 'h1');
$class = new ClassNode($element, 'foo');
return array(
array(new ClassNode(new ElementNode(), 'class'), 'Class[Element[*].class]'),
);
}
$this->assertEquals("h1[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]", (string) $class->toXpath(), '->toXpath() returns the xpath representation of the node');
public function getSpecificityValueTestData()
{
return array(
array(new ClassNode(new ElementNode(), 'class'), 10),
array(new ClassNode(new ElementNode(null, 'element'), 'class'), 11),
);
}
}

View File

@ -14,23 +14,22 @@ namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\CombinedSelectorNode;
use Symfony\Component\CssSelector\Node\ElementNode;
class CombinedSelectorNodeTest extends \PHPUnit_Framework_TestCase
class CombinedSelectorNodeTest extends AbstractNodeTest
{
public function testToXpath()
public function getToStringConversionTestData()
{
$combinators = array(
' ' => "h1/descendant::p",
'>' => "h1/p",
'+' => "h1/following-sibling::*[name() = 'p' and (position() = 1)]",
'~' => "h1/following-sibling::p",
return array(
array(new CombinedSelectorNode(new ElementNode(), '>', new ElementNode()), 'CombinedSelector[Element[*] > Element[*]]'),
array(new CombinedSelectorNode(new ElementNode(), ' ', new ElementNode()), 'CombinedSelector[Element[*] <followed> Element[*]]'),
);
}
// h1 ?? p
$element1 = new ElementNode('*', 'h1');
$element2 = new ElementNode('*', 'p');
foreach ($combinators as $combinator => $xpath) {
$combinator = new CombinedSelectorNode($element1, $combinator, $element2);
$this->assertEquals($xpath, (string) $combinator->toXpath(), '->toXpath() returns the xpath representation of the node');
}
public function getSpecificityValueTestData()
{
return array(
array(new CombinedSelectorNode(new ElementNode(), '>', new ElementNode()), 0),
array(new CombinedSelectorNode(new ElementNode(null, 'element'), '>', new ElementNode()), 1),
array(new CombinedSelectorNode(new ElementNode(null, 'element'), '>', new ElementNode(null, 'element')), 2),
);
}
}

View File

@ -13,18 +13,23 @@ namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\ElementNode;
class ElementNodeTest extends \PHPUnit_Framework_TestCase
class ElementNodeTest extends AbstractNodeTest
{
public function testToXpath()
public function getToStringConversionTestData()
{
// h1
$element = new ElementNode('*', 'h1');
return array(
array(new ElementNode(), 'Element[*]'),
array(new ElementNode(null, 'element'), 'Element[element]'),
array(new ElementNode('namespace', 'element'), 'Element[namespace|element]'),
);
}
$this->assertEquals('h1', (string) $element->toXpath(), '->toXpath() returns the xpath representation of the node');
// foo|h1
$element = new ElementNode('foo', 'h1');
$this->assertEquals('foo:h1', (string) $element->toXpath(), '->toXpath() returns the xpath representation of the node');
public function getSpecificityValueTestData()
{
return array(
array(new ElementNode(), 0),
array(new ElementNode(null, 'element'), 1),
array(new ElementNode('namespace', 'element'),1),
);
}
}

View File

@ -11,86 +11,37 @@
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\FunctionNode;
use Symfony\Component\CssSelector\Node\ElementNode;
use Symfony\Component\CssSelector\Token;
use Symfony\Component\CssSelector\Node\FunctionNode;
use Symfony\Component\CssSelector\Parser\Token;
class FunctionNodeTest extends \PHPUnit_Framework_TestCase
class FunctionNodeTest extends AbstractNodeTest
{
public function testToXpath()
public function getToStringConversionTestData()
{
$element = new ElementNode('*', 'h1');
return array(
array(new FunctionNode(new ElementNode(), 'function'), 'Function[Element[*]:function()]'),
array(new FunctionNode(new ElementNode(), 'function', array(
new Token(Token::TYPE_IDENTIFIER, 'value', 0),
)), "Function[Element[*]:function(['value'])]"),
array(new FunctionNode(new ElementNode(), 'function', array(
new Token(Token::TYPE_STRING, 'value1', 0),
new Token(Token::TYPE_NUMBER, 'value2', 0),
)), "Function[Element[*]:function(['value1', 'value2'])]"),
);
}
// h1:contains("foo")
$function = new FunctionNode($element, ':', 'contains', 'foo');
$this->assertEquals("h1[contains(string(.), 'foo')]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(1)
$function = new FunctionNode($element, ':', 'nth-child', 1);
$this->assertEquals("*/*[name() = 'h1' and (position() = 1)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child()
$function = new FunctionNode($element, ':', 'nth-child', '');
$this->assertEquals("h1[false() and position() = 0]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(odd)
$element2 = new ElementNode('*', new Token('Symbol', 'odd', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and ((position() -1) mod 2 = 0 and position() >= 1)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(even)
$element2 = new ElementNode('*', new Token('Symbol', 'even', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and ((position() +0) mod 2 = 0 and position() >= 0)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(n)
$element2 = new ElementNode('*', new Token('Symbol', 'n', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and (position() >= 0)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(3n+1)
$element2 = new ElementNode('*', new Token('Symbol', '3n+1', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and ((position() -1) mod 3 = 0 and position() >= 1)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(n+1)
$element2 = new ElementNode('*', new Token('Symbol', 'n+1', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and (position() >= 1)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(1)
$element2 = new ElementNode('*', new Token('Symbol', '2', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and (position() = 2)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(2n)
$element2 = new ElementNode('*', new Token('Symbol', '2n', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and ((position() +0) mod 2 = 0 and position() >= 0)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-child(-n)
$element2 = new ElementNode('*', new Token('Symbol', '-n', -1));
$function = new FunctionNode($element, ':', 'nth-child', $element2);
$this->assertEquals("*/*[name() = 'h1' and ((position() +0) mod -1 = 0 and position() >= 0)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-last-child(2)
$function = new FunctionNode($element, ':', 'nth-last-child', 2);
$this->assertEquals("*/*[name() = 'h1' and (position() = last() - 2)]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-of-type(2)
$function = new FunctionNode($element, ':', 'nth-of-type', 2);
$this->assertEquals("*/h1[position() = 2]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:nth-last-of-type(2)
$function = new FunctionNode($element, ':', 'nth-last-of-type', 2);
$this->assertEquals("*/h1[position() = last() - 2]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
/*
// h1:not(p)
$element2 = new ElementNode('*', 'p');
$function = new FunctionNode($element, ':', 'not', $element2);
$this->assertEquals("h1[not()]", (string) $function->toXpath(), '->toXpath() returns the xpath representation of the node');
*/
public function getSpecificityValueTestData()
{
return array(
array(new FunctionNode(new ElementNode(), 'function'), 10),
array(new FunctionNode(new ElementNode(), 'function', array(
new Token(Token::TYPE_IDENTIFIER, 'value', 0),
)), 10),
array(new FunctionNode(new ElementNode(), 'function', array(
new Token(Token::TYPE_STRING, 'value1', 0),
new Token(Token::TYPE_NUMBER, 'value2', 0),
)), 10),
);
}
}

View File

@ -14,14 +14,20 @@ namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\HashNode;
use Symfony\Component\CssSelector\Node\ElementNode;
class HashNodeTest extends \PHPUnit_Framework_TestCase
class HashNodeTest extends AbstractNodeTest
{
public function testToXpath()
public function getToStringConversionTestData()
{
// h1#foo
$element = new ElementNode('*', 'h1');
$hash = new HashNode($element, 'foo');
return array(
array(new HashNode(new ElementNode(), 'id'), 'Hash[Element[*]#id]'),
);
}
$this->assertEquals("h1[@id = 'foo']", (string) $hash->toXpath(), '->toXpath() returns the xpath representation of the node');
public function getSpecificityValueTestData()
{
return array(
array(new HashNode(new ElementNode(), 'id'), 100),
array(new HashNode(new ElementNode(null, 'id'), 'class'), 101),
);
}
}

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@ -0,0 +1,33 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\ClassNode;
use Symfony\Component\CssSelector\Node\NegationNode;
use Symfony\Component\CssSelector\Node\ElementNode;
class NegationNodeTest extends AbstractNodeTest
{
public function getToStringConversionTestData()
{
return array(
array(new NegationNode(new ElementNode(), new ClassNode(new ElementNode(), 'class')), 'Negation[Element[*]:not(Class[Element[*].class])]'),
);
}
public function getSpecificityValueTestData()
{
return array(
array(new NegationNode(new ElementNode(), new ClassNode(new ElementNode(), 'class')), 10),
);
}
}

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@ -1,43 +0,0 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\OrNode;
use Symfony\Component\CssSelector\Node\ElementNode;
class OrNodeTest extends \PHPUnit_Framework_TestCase
{
public function testToXpath()
{
// h1, h2, h3
$element1 = new ElementNode('*', 'h1');
$element2 = new ElementNode('*', 'h2');
$element3 = new ElementNode('*', 'h3');
$or = new OrNode(array($element1, $element2, $element3));
$this->assertEquals("h1 | h2 | h3", (string) $or->toXpath(), '->toXpath() returns the xpath representation of the node');
}
public function testIssueMissingPrefix()
{
// h1, h2, h3
$element1 = new ElementNode('*', 'h1');
$element2 = new ElementNode('*', 'h2');
$element3 = new ElementNode('*', 'h3');
$or = new OrNode(array($element1, $element2, $element3));
$xPath = $or->toXPath();
$xPath->addPrefix('descendant-or-self::');
$this->assertEquals("descendant-or-self::h1 | descendant-or-self::h2 | descendant-or-self::h3", (string) $xPath);
}
}

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@ -11,45 +11,22 @@
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\PseudoNode;
use Symfony\Component\CssSelector\Node\ElementNode;
use Symfony\Component\CssSelector\Node\PseudoNode;
class PseudoNodeTest extends \PHPUnit_Framework_TestCase
class PseudoNodeTest extends AbstractNodeTest
{
public function testToXpath()
public function getToStringConversionTestData()
{
$element = new ElementNode('*', 'h1');
return array(
array(new PseudoNode(new ElementNode(), 'pseudo'), 'Pseudo[Element[*]:pseudo]'),
);
}
// h1:checked
$pseudo = new PseudoNode($element, ':', 'checked');
$this->assertEquals("h1[(@selected or @checked) and (name(.) = 'input' or name(.) = 'option')]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:first-child
$pseudo = new PseudoNode($element, ':', 'first-child');
$this->assertEquals("*/*[name() = 'h1' and (position() = 1)]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:last-child
$pseudo = new PseudoNode($element, ':', 'last-child');
$this->assertEquals("*/*[name() = 'h1' and (position() = last())]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:first-of-type
$pseudo = new PseudoNode($element, ':', 'first-of-type');
$this->assertEquals("*/h1[position() = 1]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:last-of-type
$pseudo = new PseudoNode($element, ':', 'last-of-type');
$this->assertEquals("*/h1[position() = last()]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:only-child
$pseudo = new PseudoNode($element, ':', 'only-child');
$this->assertEquals("*/*[name() = 'h1' and (last() = 1)]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:only-of-type
$pseudo = new PseudoNode($element, ':', 'only-of-type');
$this->assertEquals("h1[last() = 1]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
// h1:empty
$pseudo = new PseudoNode($element, ':', 'empty');
$this->assertEquals("h1[not(*) and not(normalize-space())]", (string) $pseudo->toXpath(), '->toXpath() returns the xpath representation of the node');
public function getSpecificityValueTestData()
{
return array(
array(new PseudoNode(new ElementNode(), 'pseudo'), 10),
);
}
}

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@ -0,0 +1,34 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\ElementNode;
use Symfony\Component\CssSelector\Node\SelectorNode;
class SelectorNodeTest extends AbstractNodeTest
{
public function getToStringConversionTestData()
{
return array(
array(new SelectorNode(new ElementNode()), 'Selector[Element[*]]'),
array(new SelectorNode(new ElementNode(), 'pseudo'), 'Selector[Element[*]::pseudo]'),
);
}
public function getSpecificityValueTestData()
{
return array(
array(new SelectorNode(new ElementNode()), 0),
array(new SelectorNode(new ElementNode(), 'pseudo'), 1),
);
}
}

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@ -0,0 +1,40 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Node;
use Symfony\Component\CssSelector\Node\Specificity;
class SpecificityTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getValueTestData */
public function testValue(Specificity $specificity, $value)
{
$this->assertEquals($value, $specificity->getValue());
}
/** @dataProvider getValueTestData */
public function testPlusValue(Specificity $specificity, $value)
{
$this->assertEquals($value + 123, $specificity->plus(new Specificity(1, 2, 3))->getValue());
}
public function getValueTestData()
{
return array(
array(new Specificity(0, 0, 0), 0),
array(new Specificity(0, 0, 2), 2),
array(new Specificity(0, 3, 0), 30),
array(new Specificity(4, 0, 0), 400),
array(new Specificity(4, 3, 2), 432),
);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Handler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
/**
* @author Jean-François Simon <contact@jfsimon.fr>
*/
abstract class AbstractHandlerTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getHandleValueTestData */
public function testHandleValue($value, Token $expectedToken, $remainingContent)
{
$reader = new Reader($value);
$stream = new TokenStream();
$this->assertTrue($this->generateHandler()->handle($reader, $stream));
$this->assertEquals($expectedToken, $stream->getNext());
$this->assertRemainingContent($reader, $remainingContent);
}
/** @dataProvider getDontHandleValueTestData */
public function testDontHandleValue($value)
{
$reader = new Reader($value);
$stream = new TokenStream();
$this->assertFalse($this->generateHandler()->handle($reader, $stream));
$this->assertStreamEmpty($stream);
$this->assertRemainingContent($reader, $value);
}
abstract public function getHandleValueTestData();
abstract public function getDontHandleValueTestData();
abstract protected function generateHandler();
protected function assertStreamEmpty(TokenStream $stream)
{
$property = new \ReflectionProperty($stream, 'tokens');
$property->setAccessible(true);
$this->assertEquals(array(), $property->getValue($stream));
}
protected function assertRemainingContent(Reader $reader, $remainingContent)
{
if ('' === $remainingContent) {
$this->assertEquals(0, $reader->getRemainingLength());
$this->assertTrue($reader->isEOF());
} else {
$this->assertEquals(strlen($remainingContent), $reader->getRemainingLength());
$this->assertEquals(0, $reader->getOffset($remainingContent));
}
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Handler;
use Symfony\Component\CssSelector\Parser\Handler\CommentHandler;
use Symfony\Component\CssSelector\Parser\Reader;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
class CommentHandlerTest extends AbstractHandlerTest
{
/** @dataProvider getHandleValueTestData */
public function testHandleValue($value, Token $unusedArgument, $remainingContent)
{
$reader = new Reader($value);
$stream = new TokenStream();
$this->assertTrue($this->generateHandler()->handle($reader, $stream));
// comments are ignored (not pushed as token in stream)
$this->assertStreamEmpty($stream);
$this->assertRemainingContent($reader, $remainingContent);
}
public function getHandleValueTestData()
{
return array(
// 2nd argument only exists for inherited method compatibility
array('/* comment */', new Token(null, null, null), ''),
array('/* comment */foo', new Token(null, null, null), 'foo'),
);
}
public function getDontHandleValueTestData()
{
return array(
array('>'),
array('+'),
array(' '),
);
}
protected function generateHandler()
{
return new CommentHandler();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Handler;
use Symfony\Component\CssSelector\Parser\Handler\HashHandler;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
class HashHandlerTest extends AbstractHandlerTest
{
public function getHandleValueTestData()
{
return array(
array('#id', new Token(Token::TYPE_HASH, 'id', 0), ''),
array('#123', new Token(Token::TYPE_HASH, '123', 0), ''),
array('#id.class', new Token(Token::TYPE_HASH, 'id', 0), '.class'),
array('#id element', new Token(Token::TYPE_HASH, 'id', 0), ' element'),
);
}
public function getDontHandleValueTestData()
{
return array(
array('id'),
array('123'),
array('<'),
array('<'),
array('#'),
);
}
protected function generateHandler()
{
$patterns = new TokenizerPatterns();
return new HashHandler($patterns, new TokenizerEscaping($patterns));
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Handler;
use Symfony\Component\CssSelector\Parser\Handler\IdentifierHandler;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
class IdentifierHandlerTest extends AbstractHandlerTest
{
public function getHandleValueTestData()
{
return array(
array('foo', new Token(Token::TYPE_IDENTIFIER, 'foo', 0), ''),
array('foo|bar', new Token(Token::TYPE_IDENTIFIER, 'foo', 0), '|bar'),
array('foo.class', new Token(Token::TYPE_IDENTIFIER, 'foo', 0), '.class'),
array('foo[attr]', new Token(Token::TYPE_IDENTIFIER, 'foo', 0), '[attr]'),
array('foo bar', new Token(Token::TYPE_IDENTIFIER, 'foo', 0), ' bar'),
);
}
public function getDontHandleValueTestData()
{
return array(
array('>'),
array('+'),
array(' '),
array('*|foo'),
array('/* comment */'),
);
}
protected function generateHandler()
{
$patterns = new TokenizerPatterns();
return new IdentifierHandler($patterns, new TokenizerEscaping($patterns));
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Handler;
use Symfony\Component\CssSelector\Parser\Handler\NumberHandler;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
class NumberHandlerTest extends AbstractHandlerTest
{
public function getHandleValueTestData()
{
return array(
array('12', new Token(Token::TYPE_NUMBER, '12', 0), ''),
array('12.34', new Token(Token::TYPE_NUMBER, '12.34', 0), ''),
array('+12.34', new Token(Token::TYPE_NUMBER, '+12.34', 0), ''),
array('-12.34', new Token(Token::TYPE_NUMBER, '-12.34', 0), ''),
array('12 arg', new Token(Token::TYPE_NUMBER, '12', 0), ' arg'),
array('12]', new Token(Token::TYPE_NUMBER, '12', 0), ']'),
);
}
public function getDontHandleValueTestData()
{
return array(
array('hello'),
array('>'),
array('+'),
array(' '),
array('/* comment */'),
);
}
protected function generateHandler()
{
$patterns = new TokenizerPatterns();
return new NumberHandler($patterns, new TokenizerEscaping($patterns));
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Handler;
use Symfony\Component\CssSelector\Parser\Handler\StringHandler;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
class StringHandlerTest extends AbstractHandlerTest
{
public function getHandleValueTestData()
{
return array(
array('"hello"', new Token(Token::TYPE_STRING, 'hello', 1), ''),
array('"1"', new Token(Token::TYPE_STRING, '1', 1), ''),
array('" "', new Token(Token::TYPE_STRING, ' ', 1), ''),
array('""', new Token(Token::TYPE_STRING, '', 1), ''),
array("'hello'", new Token(Token::TYPE_STRING, 'hello', 1), ''),
array("'foo'bar", new Token(Token::TYPE_STRING, 'foo', 1), 'bar'),
);
}
public function getDontHandleValueTestData()
{
return array(
array('hello'),
array('>'),
array('1'),
array(' '),
);
}
protected function generateHandler()
{
$patterns = new TokenizerPatterns();
return new StringHandler($patterns, new TokenizerEscaping($patterns));
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Handler;
use Symfony\Component\CssSelector\Parser\Handler\WhitespaceHandler;
use Symfony\Component\CssSelector\Parser\Token;
class WhitespaceHandlerTest extends AbstractHandlerTest
{
public function getHandleValueTestData()
{
return array(
array(' ', new Token(Token::TYPE_WHITESPACE, ' ', 0), ''),
array("\n", new Token(Token::TYPE_WHITESPACE, "\n", 0), ''),
array("\t", new Token(Token::TYPE_WHITESPACE, "\t", 0), ''),
array(' foo', new Token(Token::TYPE_WHITESPACE, ' ', 0), 'foo'),
array(' .foo', new Token(Token::TYPE_WHITESPACE, ' ', 0), '.foo'),
);
}
public function getDontHandleValueTestData()
{
return array(
array('>'),
array('1'),
array('a'),
);
}
protected function generateHandler()
{
return new WhitespaceHandler();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Parser;
use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
use Symfony\Component\CssSelector\Node\FunctionNode;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\Parser;
use Symfony\Component\CssSelector\Parser\Token;
class ParserTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getParserTestData */
public function testParser($source, $representation)
{
$parser = new Parser();
$this->assertEquals($representation, array_map(function (SelectorNode $node) {
return (string) $node->getTree();
}, $parser->parse($source)));
}
/** @dataProvider getParserExceptionTestData */
public function testParserException($source, $message)
{
$parser = new Parser();
try {
$parser->parse($source);
$this->fail('Parser should throw a SyntaxErrorException.');
} catch (SyntaxErrorException $e) {
$this->assertEquals($message, $e->getMessage());
}
}
/** @dataProvider getPseudoElementsTestData */
public function testPseudoElements($source, $element, $pseudo)
{
$parser = new Parser();
$selectors = $parser->parse($source);
$this->assertEquals(1, count($selectors));
/** @var SelectorNode $selector */
$selector = $selectors[0];
$this->assertEquals($element, (string) $selector->getTree());
$this->assertEquals($pseudo, (string) $selector->getPseudoElement());
}
/** @dataProvider getSpecificityTestData */
public function testSpecificity($source, $value)
{
$parser = new Parser();
$selectors = $parser->parse($source);
$this->assertEquals(1, count($selectors));
/** @var SelectorNode $selector */
$selector = $selectors[0];
$this->assertEquals($value, $selector->getSpecificity()->getValue());
}
/** @dataProvider getParseSeriesTestData */
public function testParseSeries($series, $a, $b)
{
$parser = new Parser();
$selectors = $parser->parse(sprintf(':nth-child(%s)', $series));
$this->assertEquals(1, count($selectors));
/** @var FunctionNode $function */
$function = $selectors[0]->getTree();
$this->assertEquals(array($a, $b), Parser::parseSeries($function->getArguments()));
}
/** @dataProvider getParseSeriesExceptionTestData */
public function testParseSeriesException($series)
{
$parser = new Parser();
$selectors = $parser->parse(sprintf(':nth-child(%s)', $series));
$this->assertEquals(1, count($selectors));
/** @var FunctionNode $function */
$function = $selectors[0]->getTree();
$this->setExpectedException('Symfony\Component\CssSelector\Exception\SyntaxErrorException');
Parser::parseSeries($function->getArguments());
}
public function getParserTestData()
{
return array(
array('*', array('Element[*]')),
array('*|*', array('Element[*]')),
array('*|foo', array('Element[foo]')),
array('foo|*', array('Element[foo|*]')),
array('foo|bar', array('Element[foo|bar]')),
array('#foo#bar', array('Hash[Hash[Element[*]#foo]#bar]')),
array('div>.foo', array('CombinedSelector[Element[div] > Class[Element[*].foo]]')),
array('div> .foo', array('CombinedSelector[Element[div] > Class[Element[*].foo]]')),
array('div >.foo', array('CombinedSelector[Element[div] > Class[Element[*].foo]]')),
array('div > .foo', array('CombinedSelector[Element[div] > Class[Element[*].foo]]')),
array("div \n> \t \t .foo", array('CombinedSelector[Element[div] > Class[Element[*].foo]]')),
array('td.foo,.bar', array('Class[Element[td].foo]', 'Class[Element[*].bar]')),
array('td.foo, .bar', array('Class[Element[td].foo]', 'Class[Element[*].bar]')),
array("td.foo\t\r\n\f ,\t\r\n\f .bar", array('Class[Element[td].foo]', 'Class[Element[*].bar]')),
array('td.foo,.bar', array('Class[Element[td].foo]', 'Class[Element[*].bar]')),
array('td.foo, .bar', array('Class[Element[td].foo]', 'Class[Element[*].bar]')),
array("td.foo\t\r\n\f ,\t\r\n\f .bar", array('Class[Element[td].foo]', 'Class[Element[*].bar]')),
array('div, td.foo, div.bar span', array('Element[div]', 'Class[Element[td].foo]', 'CombinedSelector[Class[Element[div].bar] <followed> Element[span]]')),
array('div > p', array('CombinedSelector[Element[div] > Element[p]]')),
array('td:first', array('Pseudo[Element[td]:first]')),
array('td :first', array('CombinedSelector[Element[td] <followed> Pseudo[Element[*]:first]]')),
array('a[name]', array('Attribute[Element[a][name]]')),
array("a[ name\t]", array('Attribute[Element[a][name]]')),
array('a [name]', array('CombinedSelector[Element[a] <followed> Attribute[Element[*][name]]]')),
array('a[rel="include"]', array("Attribute[Element[a][rel = 'include']]")),
array('a[rel = include]', array("Attribute[Element[a][rel = 'include']]")),
array("a[hreflang |= 'en']", array("Attribute[Element[a][hreflang |= 'en']]")),
array('a[hreflang|=en]', array("Attribute[Element[a][hreflang |= 'en']]")),
array('div:nth-child(10)', array("Function[Element[div]:nth-child(['10'])]")),
array(':nth-child(2n+2)', array("Function[Element[*]:nth-child(['2', 'n', '+2'])]")),
array('div:nth-of-type(10)', array("Function[Element[div]:nth-of-type(['10'])]")),
array('div div:nth-of-type(10) .aclass', array("CombinedSelector[CombinedSelector[Element[div] <followed> Function[Element[div]:nth-of-type(['10'])]] <followed> Class[Element[*].aclass]]")),
array('label:only', array('Pseudo[Element[label]:only]')),
array('a:lang(fr)', array("Function[Element[a]:lang(['fr'])]")),
array('div:contains("foo")', array("Function[Element[div]:contains(['foo'])]")),
array('div#foobar', array('Hash[Element[div]#foobar]')),
array('div:not(div.foo)', array('Negation[Element[div]:not(Class[Element[div].foo])]')),
array('td ~ th', array('CombinedSelector[Element[td] ~ Element[th]]')),
);
}
public function getParserExceptionTestData()
{
return array(
array('attributes(href)/html/body/a', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, '(', 10))->getMessage()),
array('attributes(href)', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, '(', 10))->getMessage()),
array('html/body/a', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, '/', 4))->getMessage()),
array(' ', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_FILE_END, '', 1))->getMessage()),
array('div, ', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_FILE_END, '', 5))->getMessage()),
array(' , div', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, ',', 1))->getMessage()),
array('p, , div', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, ',', 3))->getMessage()),
array('div > ', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_FILE_END, '', 6))->getMessage()),
array(' > div', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, '>', 2))->getMessage()),
array('foo|#bar', SyntaxErrorException::unexpectedToken('identifier or "*"', new Token(Token::TYPE_HASH, 'bar', 4))->getMessage()),
array('#.foo', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, '#', 0))->getMessage()),
array('.#foo', SyntaxErrorException::unexpectedToken('identifier', new Token(Token::TYPE_HASH, 'foo', 1))->getMessage()),
array(':#foo', SyntaxErrorException::unexpectedToken('identifier', new Token(Token::TYPE_HASH, 'foo', 1))->getMessage()),
array('[*]', SyntaxErrorException::unexpectedToken('"|"', new Token(Token::TYPE_DELIMITER, ']', 2))->getMessage()),
array('[foo|]', SyntaxErrorException::unexpectedToken('identifier', new Token(Token::TYPE_DELIMITER, ']', 5))->getMessage()),
array('[#]', SyntaxErrorException::unexpectedToken('identifier or "*"', new Token(Token::TYPE_DELIMITER, '#', 1))->getMessage()),
array('[foo=#]', SyntaxErrorException::unexpectedToken('string or identifier', new Token(Token::TYPE_DELIMITER, '#', 5))->getMessage()),
array(':nth-child()', SyntaxErrorException::unexpectedToken('at least one argument', new Token(Token::TYPE_DELIMITER, ')', 11))->getMessage()),
array('[href]a', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_IDENTIFIER, 'a', 6))->getMessage()),
array('[rel:stylesheet]', SyntaxErrorException::unexpectedToken('operator', new Token(Token::TYPE_DELIMITER, ':', 4))->getMessage()),
array('[rel=stylesheet', SyntaxErrorException::unexpectedToken('"]"', new Token(Token::TYPE_FILE_END, '', 15))->getMessage()),
array(':lang(fr', SyntaxErrorException::unexpectedToken('an argument', new Token(Token::TYPE_FILE_END, '', 8))->getMessage()),
array(':contains("foo', SyntaxErrorException::unclosedString(10)->getMessage()),
array('foo!', SyntaxErrorException::unexpectedToken('selector', new Token(Token::TYPE_DELIMITER, '!', 3))->getMessage()),
);
}
public function getPseudoElementsTestData()
{
return array(
array('foo', 'Element[foo]', ''),
array('*', 'Element[*]', ''),
array(':empty', 'Pseudo[Element[*]:empty]', ''),
array(':BEfore', 'Element[*]', 'before'),
array(':aftER', 'Element[*]', 'after'),
array(':First-Line', 'Element[*]', 'first-line'),
array(':First-Letter', 'Element[*]', 'first-letter'),
array('::befoRE', 'Element[*]', 'before'),
array('::AFter', 'Element[*]', 'after'),
array('::firsT-linE', 'Element[*]', 'first-line'),
array('::firsT-letteR', 'Element[*]', 'first-letter'),
array('::Selection', 'Element[*]', 'selection'),
array('foo:after', 'Element[foo]', 'after'),
array('foo::selection', 'Element[foo]', 'selection'),
array('lorem#ipsum ~ a#b.c[href]:empty::selection', 'CombinedSelector[Hash[Element[lorem]#ipsum] ~ Pseudo[Attribute[Class[Hash[Element[a]#b].c][href]]:empty]]', 'selection'),
);
}
public function getSpecificityTestData()
{
return array(
array('*', 0),
array(' foo', 1),
array(':empty ', 10),
array(':before', 1),
array('*:before', 1),
array(':nth-child(2)', 10),
array('.bar', 10),
array('[baz]', 10),
array('[baz="4"]', 10),
array('[baz^="4"]', 10),
array('#lipsum', 100),
array(':not(*)', 0),
array(':not(foo)', 1),
array(':not(.foo)', 10),
array(':not([foo])', 10),
array(':not(:empty)', 10),
array(':not(#foo)', 100),
array('foo:empty', 11),
array('foo:before', 2),
array('foo::before', 2),
array('foo:empty::before', 12),
array('#lorem + foo#ipsum:first-child > bar:first-line', 213),
);
}
public function getParseSeriesTestData()
{
return array(
array('1n+3', 1, 3),
array('1n +3', 1, 3),
array('1n + 3', 1, 3),
array('1n+ 3', 1, 3),
array('1n-3', 1, -3),
array('1n -3', 1, -3),
array('1n - 3', 1, -3),
array('1n- 3', 1, -3),
array('n-5', 1, -5),
array('odd', 2, 1),
array('even', 2, 0),
array('3n', 3, 0),
array('n', 1, 0),
array('+n', 1, 0),
array('-n', -1, 0),
array('5', 0, 5),
);
}
public function getParseSeriesExceptionTestData()
{
return array(
array('foo'),
array('n+'),
);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Parser;
use Symfony\Component\CssSelector\Parser\Reader;
class ReaderTest extends \PHPUnit_Framework_TestCase
{
public function testIsEOF()
{
$reader = new Reader('');
$this->assertTrue($reader->isEOF());
$reader = new Reader('hello');
$this->assertFalse($reader->isEOF());
$this->assignPosition($reader, 2);
$this->assertFalse($reader->isEOF());
$this->assignPosition($reader, 5);
$this->assertTrue($reader->isEOF());
}
public function testGetRemainingLength()
{
$reader = new Reader('hello');
$this->assertEquals(5, $reader->getRemainingLength());
$this->assignPosition($reader, 2);
$this->assertEquals(3, $reader->getRemainingLength());
$this->assignPosition($reader, 5);
$this->assertEquals(0, $reader->getRemainingLength());
}
public function testGetSubstring()
{
$reader = new Reader('hello');
$this->assertEquals('he', $reader->getSubstring(2));
$this->assertEquals('el', $reader->getSubstring(2, 1));
$this->assignPosition($reader, 2);
$this->assertEquals('ll', $reader->getSubstring(2));
$this->assertEquals('lo', $reader->getSubstring(2, 1));
}
public function testGetOffset()
{
$reader = new Reader('hello');
$this->assertEquals(2, $reader->getOffset('ll'));
$this->assertFalse($reader->getOffset('w'));
$this->assignPosition($reader, 2);
$this->assertEquals(0, $reader->getOffset('ll'));
$this->assertFalse($reader->getOffset('he'));
}
public function testFindPattern()
{
$reader = new Reader('hello');
$this->assertFalse($reader->findPattern('/world/'));
$this->assertEquals(array('hello', 'h'), $reader->findPattern('/^([a-z]).*/'));
$this->assignPosition($reader, 2);
$this->assertFalse($reader->findPattern('/^h.*/'));
$this->assertEquals(array('llo'), $reader->findPattern('/^llo$/'));
}
public function testMoveForward()
{
$reader = new Reader('hello');
$this->assertEquals(0, $reader->getPosition());
$reader->moveForward(2);
$this->assertEquals(2, $reader->getPosition());
}
public function testToEnd()
{
$reader = new Reader('hello');
$reader->moveToEnd();
$this->assertTrue($reader->isEOF());
}
private function assignPosition(Reader $reader, $value)
{
$position = new \ReflectionProperty($reader, 'position');
$position->setAccessible(true);
$position->setValue($reader, $value);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Parser\Shortcut;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\Shortcut\ClassParser;
/**
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ClassParserTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getParseTestData */
public function testParse($source, $representation)
{
$parser = new ClassParser();
$selectors = $parser->parse($source);
$this->assertEquals(1, count($selectors));
/** @var SelectorNode $selector */
$selector = $selectors[0];
$this->assertEquals($representation, (string) $selector->getTree());
}
public function getParseTestData()
{
return array(
array('.class', 'Class[Element[*].class]'),
);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Parser\Shortcut;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\Shortcut\ElementParser;
/**
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class ElementParserTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getParseTestData */
public function testParse($source, $representation)
{
$parser = new ElementParser();
$selectors = $parser->parse($source);
$this->assertEquals(1, count($selectors));
/** @var SelectorNode $selector */
$selector = $selectors[0];
$this->assertEquals($representation, (string) $selector->getTree());
}
public function getParseTestData()
{
return array(
array('p', 'Element[p]'),
array('*', 'Element[*]'),
array('h1', 'Element[h1]'),
);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Parser\Shortcut;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\Shortcut\HashParser;
/**
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class HashParserTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getParseTestData */
public function testParse($source, $representation)
{
$parser = new HashParser();
$selectors = $parser->parse($source);
$this->assertEquals(1, count($selectors));
/** @var SelectorNode $selector */
$selector = $selectors[0];
$this->assertEquals($representation, (string) $selector->getTree());
}
public function getParseTestData()
{
return array(
array('#id', 'Hash[Element[*]#id]'),
array('h1#main', 'Hash[Element[h1]#main]'),
);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\Parser;
use Symfony\Component\CssSelector\Parser\Token;
use Symfony\Component\CssSelector\Parser\TokenStream;
class TokenStreamTest extends \PHPUnit_Framework_TestCase
{
public function testGetNext()
{
$stream = new TokenStream();
$stream->push($t1 = new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
$stream->push($t2 = new Token(Token::TYPE_DELIMITER, '.', 2));
$stream->push($t3 = new Token(Token::TYPE_IDENTIFIER, 'title', 3));
$this->assertSame($t1, $stream->getNext());
$this->assertSame($t2, $stream->getNext());
$this->assertSame($t3, $stream->getNext());
}
public function testGetPeek()
{
$stream = new TokenStream();
$stream->push($t1 = new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
$stream->push($t2 = new Token(Token::TYPE_DELIMITER, '.', 2));
$stream->push($t3 = new Token(Token::TYPE_IDENTIFIER, 'title', 3));
$this->assertSame($t1, $stream->getPeek());
$this->assertSame($t1, $stream->getNext());
$this->assertSame($t2, $stream->getPeek());
$this->assertSame($t2, $stream->getPeek());
$this->assertSame($t2, $stream->getNext());
}
public function testGetNextIdentifier()
{
$stream = new TokenStream();
$stream->push(new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
$this->assertEquals('h1', $stream->getNextIdentifier());
}
public function testFailToGetNextIdentifier()
{
$this->setExpectedException('Symfony\Component\CssSelector\Exception\SyntaxErrorException');
$stream = new TokenStream();
$stream->push(new Token(Token::TYPE_DELIMITER, '.', 2));
$stream->getNextIdentifier();
}
public function testGetNextIdentifierOrStar()
{
$stream = new TokenStream();
$stream->push(new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
$this->assertEquals('h1', $stream->getNextIdentifierOrStar());
$stream->push(new Token(Token::TYPE_DELIMITER, '*', 0));
$this->assertNull($stream->getNextIdentifierOrStar());
}
public function testFailToGetNextIdentifierOrStar()
{
$this->setExpectedException('Symfony\Component\CssSelector\Exception\SyntaxErrorException');
$stream = new TokenStream();
$stream->push(new Token(Token::TYPE_DELIMITER, '.', 2));
$stream->getNextIdentifierOrStar();
}
public function testSkipWhitespace()
{
$stream = new TokenStream();
$stream->push($t1 = new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
$stream->push($t2 = new Token(Token::TYPE_WHITESPACE, ' ', 2));
$stream->push($t3 = new Token(Token::TYPE_IDENTIFIER, 'h1', 3));
$stream->skipWhitespace();
$this->assertSame($t1, $stream->getNext());
$stream->skipWhitespace();
$this->assertSame($t3, $stream->getNext());
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests;
use Symfony\Component\CssSelector\Tokenizer;
class TokenizerTest extends \PHPUnit_Framework_TestCase
{
protected $tokenizer;
protected function setUp()
{
$this->tokenizer = new Tokenizer();
}
/**
* @dataProvider getCssSelectors
*/
public function testTokenize($css)
{
$this->assertEquals($css, $this->tokensToString($this->tokenizer->tokenize($css)), '->tokenize() lexes an input string and returns an array of tokens');
}
public function testTokenizeWithQuotedStrings()
{
$this->assertEquals('foo[class=foo bar ]', $this->tokensToString($this->tokenizer->tokenize('foo[class="foo bar"]')), '->tokenize() lexes an input string and returns an array of tokens');
$this->assertEquals("foo[class=foo Abar ]", $this->tokensToString($this->tokenizer->tokenize('foo[class="foo \\65 bar"]')), '->tokenize() lexes an input string and returns an array of tokens');
$this->assertEquals("img[alt= ]", $this->tokensToString($this->tokenizer->tokenize('img[alt=""]')), '->tokenize() lexes an input string and returns an array of tokens');
}
/**
* @expectedException \Symfony\Component\CssSelector\Exception\ParseException
*/
public function testTokenizeInvalidString()
{
$this->tokensToString($this->tokenizer->tokenize('/invalid'));
}
public function getCssSelectors()
{
return array(
array('h1'),
array('h1:nth-child(3n+1)'),
array('h1 > p'),
array('h1#foo'),
array('h1.foo'),
array('h1[class*=foo]'),
array('h1 .foo'),
array('h1 #foo'),
array('h1 [class*=foo]'),
);
}
protected function tokensToString($tokens)
{
$str = '';
foreach ($tokens as $token) {
$str .= str_repeat(' ', $token->getPosition() - strlen($str)).$token;
}
return $str;
}
}

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<html id="html"><head>
<link id="link-href" href="foo" />
<link id="link-nohref" />
</head><body>
<div id="outer-div">
<a id="name-anchor" name="foo"></a>
<a id="tag-anchor" rel="tag" href="http://localhost/foo">link</a>
<a id="nofollow-anchor" rel="nofollow" href="https://example.org">
link</a>
<ol id="first-ol" class="a b c">
<li id="first-li">content</li>
<li id="second-li" lang="En-us">
<div id="li-div">
</div>
</li>
<li id="third-li" class="ab c"></li>
<li id="fourth-li" class="ab
c"></li>
<li id="fifth-li"></li>
<li id="sixth-li"></li>
<li id="seventh-li"> </li>
</ol>
<p id="paragraph">
<b id="p-b">hi</b> <em id="p-em">there</em>
<b id="p-b2">guy</b>
<input type="checkbox" id="checkbox-unchecked" />
<input type="checkbox" id="checkbox-disabled" disabled="" />
<input type="text" id="text-checked" checked="checked" />
<input type="hidden" />
<input type="hidden" disabled="disabled" />
<input type="checkbox" id="checkbox-checked" checked="checked" />
<input type="checkbox" id="checkbox-disabled-checked"
disabled="disabled" checked="checked" />
<fieldset id="fieldset" disabled="disabled">
<input type="checkbox" id="checkbox-fieldset-disabled" />
<input type="hidden" />
</fieldset>
</p>
<ol id="second-ol">
</ol>
<map name="dummymap">
<area shape="circle" coords="200,250,25" href="foo.html" id="area-href" />
<area shape="default" id="area-nohref" />
</map>
</div>
<div id="foobar-div" foobar="ab bc
cde"><span id="foobar-span"></span></div>
</body></html>

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<test>
<a id="first" xml:lang="en">a</a>
<b id="second" xml:lang="en-US">b</b>
<c id="third" xml:lang="en-Nz">c</c>
<d id="fourth" xml:lang="En-us">d</d>
<e id="fifth" xml:lang="fr">e</e>
<f id="sixth" xml:lang="ru">f</f>
<g id="seventh" xml:lang="de">
<h id="eighth" xml:lang="zh"/>
</g>
</test>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" debug="true">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>
<div id="test">
<div class="dialog">
<h2>As You Like It</h2>
<div id="playwright">
by William Shakespeare
</div>
<div class="dialog scene thirdClass" id="scene1">
<h3>ACT I, SCENE III. A room in the palace.</h3>
<div class="dialog">
<div class="direction">Enter CELIA and ROSALIND</div>
</div>
<div id="speech1" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.1">Why, cousin! why, Rosalind! Cupid have mercy! not a word?</div>
</div>
<div id="speech2" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.2">Not one to throw at a dog.</div>
</div>
<div id="speech3" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.3">No, thy words are too precious to be cast away upon</div>
<div id="scene1.3.4">curs; throw some of them at me; come, lame me with reasons.</div>
</div>
<div id="speech4" class="character">ROSALIND</div>
<div id="speech5" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.8">But is all this for your father?</div>
</div>
<div class="dialog">
<div id="scene1.3.5">Then there were two cousins laid up; when the one</div>
<div id="scene1.3.6">should be lamed with reasons and the other mad</div>
<div id="scene1.3.7">without any.</div>
</div>
<div id="speech6" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.9">No, some of it is for my child's father. O, how</div>
<div id="scene1.3.10">full of briers is this working-day world!</div>
</div>
<div id="speech7" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.11">They are but burs, cousin, thrown upon thee in</div>
<div id="scene1.3.12">holiday foolery: if we walk not in the trodden</div>
<div id="scene1.3.13">paths our very petticoats will catch them.</div>
</div>
<div id="speech8" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.14">I could shake them off my coat: these burs are in my heart.</div>
</div>
<div id="speech9" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.15">Hem them away.</div>
</div>
<div id="speech10" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.16">I would try, if I could cry 'hem' and have him.</div>
</div>
<div id="speech11" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.17">Come, come, wrestle with thy affections.</div>
</div>
<div id="speech12" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.18">O, they take the part of a better wrestler than myself!</div>
</div>
<div id="speech13" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.19">O, a good wish upon you! you will try in time, in</div>
<div id="scene1.3.20">despite of a fall. But, turning these jests out of</div>
<div id="scene1.3.21">service, let us talk in good earnest: is it</div>
<div id="scene1.3.22">possible, on such a sudden, you should fall into so</div>
<div id="scene1.3.23">strong a liking with old Sir Rowland's youngest son?</div>
</div>
<div id="speech14" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.24">The duke my father loved his father dearly.</div>
</div>
<div id="speech15" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.25">Doth it therefore ensue that you should love his son</div>
<div id="scene1.3.26">dearly? By this kind of chase, I should hate him,</div>
<div id="scene1.3.27">for my father hated his father dearly; yet I hate</div>
<div id="scene1.3.28">not Orlando.</div>
</div>
<div id="speech16" class="character">ROSALIND</div>
<div title="wtf" class="dialog">
<div id="scene1.3.29">No, faith, hate him not, for my sake.</div>
</div>
<div id="speech17" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.30">Why should I not? doth he not deserve well?</div>
</div>
<div id="speech18" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.31">Let me love him for that, and do you love him</div>
<div id="scene1.3.32">because I do. Look, here comes the duke.</div>
</div>
<div id="speech19" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.33">With his eyes full of anger.</div>
<div class="direction">Enter DUKE FREDERICK, with Lords</div>
</div>
<div id="speech20" class="character">DUKE FREDERICK</div>
<div class="dialog">
<div id="scene1.3.34">Mistress, dispatch you with your safest haste</div>
<div id="scene1.3.35">And get you from our court.</div>
</div>
<div id="speech21" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.36">Me, uncle?</div>
</div>
<div id="speech22" class="character">DUKE FREDERICK</div>
<div class="dialog">
<div id="scene1.3.37">You, cousin</div>
<div id="scene1.3.38">Within these ten days if that thou be'st found</div>
<div id="scene1.3.39">So near our public court as twenty miles,</div>
<div id="scene1.3.40">Thou diest for it.</div>
</div>
<div id="speech23" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.41"> I do beseech your grace,</div>
<div id="scene1.3.42">Let me the knowledge of my fault bear with me:</div>
<div id="scene1.3.43">If with myself I hold intelligence</div>
<div id="scene1.3.44">Or have acquaintance with mine own desires,</div>
<div id="scene1.3.45">If that I do not dream or be not frantic,--</div>
<div id="scene1.3.46">As I do trust I am not--then, dear uncle,</div>
<div id="scene1.3.47">Never so much as in a thought unborn</div>
<div id="scene1.3.48">Did I offend your highness.</div>
</div>
<div id="speech24" class="character">DUKE FREDERICK</div>
<div class="dialog">
<div id="scene1.3.49">Thus do all traitors:</div>
<div id="scene1.3.50">If their purgation did consist in words,</div>
<div id="scene1.3.51">They are as innocent as grace itself:</div>
<div id="scene1.3.52">Let it suffice thee that I trust thee not.</div>
</div>
<div id="speech25" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.53">Yet your mistrust cannot make me a traitor:</div>
<div id="scene1.3.54">Tell me whereon the likelihood depends.</div>
</div>
<div id="speech26" class="character">DUKE FREDERICK</div>
<div class="dialog">
<div id="scene1.3.55">Thou art thy father's daughter; there's enough.</div>
</div>
<div id="speech27" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.56">So was I when your highness took his dukedom;</div>
<div id="scene1.3.57">So was I when your highness banish'd him:</div>
<div id="scene1.3.58">Treason is not inherited, my lord;</div>
<div id="scene1.3.59">Or, if we did derive it from our friends,</div>
<div id="scene1.3.60">What's that to me? my father was no traitor:</div>
<div id="scene1.3.61">Then, good my liege, mistake me not so much</div>
<div id="scene1.3.62">To think my poverty is treacherous.</div>
</div>
<div id="speech28" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.63">Dear sovereign, hear me speak.</div>
</div>
<div id="speech29" class="character">DUKE FREDERICK</div>
<div class="dialog">
<div id="scene1.3.64">Ay, Celia; we stay'd her for your sake,</div>
<div id="scene1.3.65">Else had she with her father ranged along.</div>
</div>
<div id="speech30" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.66">I did not then entreat to have her stay;</div>
<div id="scene1.3.67">It was your pleasure and your own remorse:</div>
<div id="scene1.3.68">I was too young that time to value her;</div>
<div id="scene1.3.69">But now I know her: if she be a traitor,</div>
<div id="scene1.3.70">Why so am I; we still have slept together,</div>
<div id="scene1.3.71">Rose at an instant, learn'd, play'd, eat together,</div>
<div id="scene1.3.72">And wheresoever we went, like Juno's swans,</div>
<div id="scene1.3.73">Still we went coupled and inseparable.</div>
</div>
<div id="speech31" class="character">DUKE FREDERICK</div>
<div class="dialog">
<div id="scene1.3.74">She is too subtle for thee; and her smoothness,</div>
<div id="scene1.3.75">Her very silence and her patience</div>
<div id="scene1.3.76">Speak to the people, and they pity her.</div>
<div id="scene1.3.77">Thou art a fool: she robs thee of thy name;</div>
<div id="scene1.3.78">And thou wilt show more bright and seem more virtuous</div>
<div id="scene1.3.79">When she is gone. Then open not thy lips:</div>
<div id="scene1.3.80">Firm and irrevocable is my doom</div>
<div id="scene1.3.81">Which I have pass'd upon her; she is banish'd.</div>
</div>
<div id="speech32" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.82">Pronounce that sentence then on me, my liege:</div>
<div id="scene1.3.83">I cannot live out of her company.</div>
</div>
<div id="speech33" class="character">DUKE FREDERICK</div>
<div class="dialog">
<div id="scene1.3.84">You are a fool. You, niece, provide yourself:</div>
<div id="scene1.3.85">If you outstay the time, upon mine honour,</div>
<div id="scene1.3.86">And in the greatness of my word, you die.</div>
<div class="direction">Exeunt DUKE FREDERICK and Lords</div>
</div>
<div id="speech34" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.87">O my poor Rosalind, whither wilt thou go?</div>
<div id="scene1.3.88">Wilt thou change fathers? I will give thee mine.</div>
<div id="scene1.3.89">I charge thee, be not thou more grieved than I am.</div>
</div>
<div id="speech35" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.90">I have more cause.</div>
</div>
<div id="speech36" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.91"> Thou hast not, cousin;</div>
<div id="scene1.3.92">Prithee be cheerful: know'st thou not, the duke</div>
<div id="scene1.3.93">Hath banish'd me, his daughter?</div>
</div>
<div id="speech37" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.94">That he hath not.</div>
</div>
<div id="speech38" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.95">No, hath not? Rosalind lacks then the love</div>
<div id="scene1.3.96">Which teacheth thee that thou and I am one:</div>
<div id="scene1.3.97">Shall we be sunder'd? shall we part, sweet girl?</div>
<div id="scene1.3.98">No: let my father seek another heir.</div>
<div id="scene1.3.99">Therefore devise with me how we may fly,</div>
<div id="scene1.3.100">Whither to go and what to bear with us;</div>
<div id="scene1.3.101">And do not seek to take your change upon you,</div>
<div id="scene1.3.102">To bear your griefs yourself and leave me out;</div>
<div id="scene1.3.103">For, by this heaven, now at our sorrows pale,</div>
<div id="scene1.3.104">Say what thou canst, I'll go along with thee.</div>
</div>
<div id="speech39" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.105">Why, whither shall we go?</div>
</div>
<div id="speech40" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.106">To seek my uncle in the forest of Arden.</div>
</div>
<div id="speech41" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.107">Alas, what danger will it be to us,</div>
<div id="scene1.3.108">Maids as we are, to travel forth so far!</div>
<div id="scene1.3.109">Beauty provoketh thieves sooner than gold.</div>
</div>
<div id="speech42" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.110">I'll put myself in poor and mean attire</div>
<div id="scene1.3.111">And with a kind of umber smirch my face;</div>
<div id="scene1.3.112">The like do you: so shall we pass along</div>
<div id="scene1.3.113">And never stir assailants.</div>
</div>
<div id="speech43" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.114">Were it not better,</div>
<div id="scene1.3.115">Because that I am more than common tall,</div>
<div id="scene1.3.116">That I did suit me all points like a man?</div>
<div id="scene1.3.117">A gallant curtle-axe upon my thigh,</div>
<div id="scene1.3.118">A boar-spear in my hand; and--in my heart</div>
<div id="scene1.3.119">Lie there what hidden woman's fear there will--</div>
<div id="scene1.3.120">We'll have a swashing and a martial outside,</div>
<div id="scene1.3.121">As many other mannish cowards have</div>
<div id="scene1.3.122">That do outface it with their semblances.</div>
</div>
<div id="speech44" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.123">What shall I call thee when thou art a man?</div>
</div>
<div id="speech45" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.124">I'll have no worse a name than Jove's own page;</div>
<div id="scene1.3.125">And therefore look you call me Ganymede.</div>
<div id="scene1.3.126">But what will you be call'd?</div>
</div>
<div id="speech46" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.127">Something that hath a reference to my state</div>
<div id="scene1.3.128">No longer Celia, but Aliena.</div>
</div>
<div id="speech47" class="character">ROSALIND</div>
<div class="dialog">
<div id="scene1.3.129">But, cousin, what if we assay'd to steal</div>
<div id="scene1.3.130">The clownish fool out of your father's court?</div>
<div id="scene1.3.131">Would he not be a comfort to our travel?</div>
</div>
<div id="speech48" class="character">CELIA</div>
<div class="dialog">
<div id="scene1.3.132">He'll go along o'er the wide world with me;</div>
<div id="scene1.3.133">Leave me alone to woo him. Let's away,</div>
<div id="scene1.3.134">And get our jewels and our wealth together,</div>
<div id="scene1.3.135">Devise the fittest time and safest way</div>
<div id="scene1.3.136">To hide us from pursuit that will be made</div>
<div id="scene1.3.137">After my flight. Now go we in content</div>
<div id="scene1.3.138">To liberty and not to banishment.</div>
<div class="direction">Exeunt</div>
</div>
</div>
</div>
</div>
</body>
</html>

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests\XPath;
use Symfony\Component\CssSelector\XPath\Extension\HtmlExtension;
use Symfony\Component\CssSelector\XPath\Translator;
class TranslatorTest extends \PHPUnit_Framework_TestCase
{
/** @dataProvider getXpathLiteralTestData */
public function testXpathLiteral($value, $literal)
{
$this->assertEquals($literal, Translator::getXpathLiteral($value));
}
/** @dataProvider getCssToXPathTestData */
public function testCssToXPath($css, $xpath)
{
$translator = new Translator();
$translator->registerExtension(new HtmlExtension($translator));
$this->assertEquals($xpath, $translator->cssToXPath($css, ''));
}
/** @dataProvider getXmlLangTestData */
public function testXmlLang($css, array $elementsId)
{
$translator = new Translator();
$document = new \SimpleXMLElement(file_get_contents(__DIR__.'/Fixtures/lang.xml'));
$elements = $document->xpath($translator->cssToXPath($css));
$this->assertEquals(count($elementsId), count($elements));
foreach ($elements as $element) {
$this->assertTrue(in_array($element->attributes()->id, $elementsId));
}
}
/** @dataProvider getHtmlIdsTestData */
public function testHtmlIds($css, array $elementsId)
{
$translator = new Translator();
$translator->registerExtension(new HtmlExtension($translator));
$document = new \DOMDocument();
$document->strictErrorChecking = false;
libxml_use_internal_errors(true);
$document->loadHTMLFile(__DIR__.'/Fixtures/ids.html');
$document = simplexml_import_dom($document);
$elements = $document->xpath($translator->cssToXPath($css));
$this->assertCount(count($elementsId), $elementsId);
foreach ($elements as $element) {
if (null !== $element->attributes()->id) {
$this->assertTrue(in_array($element->attributes()->id, $elementsId));
}
}
}
/** @dataProvider getHtmlShakespearTestData */
public function testHtmlShakespear($css, $count)
{
$translator = new Translator();
$translator->registerExtension(new HtmlExtension($translator));
$document = new \DOMDocument();
$document->strictErrorChecking = false;
$document->loadHTMLFile(__DIR__.'/Fixtures/shakespear.html');
$document = simplexml_import_dom($document);
$bodies = $document->xpath('//body');
$elements = $bodies[0]->xpath($translator->cssToXPath($css));
$this->assertEquals($count, count($elements));
}
public function getXpathLiteralTestData()
{
return array(
array('foo', "'foo'"),
array("foo's bar", '"foo\'s bar"'),
array("foo's \"middle\" bar", 'concat(\'foo\', "\'", \'s "middle" bar\')'),
array("foo's 'middle' \"bar\"", 'concat(\'foo\', "\'", \'s \', "\'", \'middle\', "\'", \' "bar"\')'),
);
}
public function getCssToXPathTestData()
{
return array(
array('*', "*"),
array('e', "e"),
array('*|e', "e"),
array('e|f', "e:f"),
array('e[foo]', "e[@foo]"),
array('e[foo|bar]', "e[@foo:bar]"),
array('e[foo="bar"]', "e[@foo = 'bar']"),
array('e[foo~="bar"]', "e[@foo and contains(concat(' ', normalize-space(@foo), ' '), ' bar ')]"),
array('e[foo^="bar"]', "e[@foo and starts-with(@foo, 'bar')]"),
array('e[foo$="bar"]', "e[@foo and substring(@foo, string-length(@foo)-2) = 'bar']"),
array('e[foo*="bar"]', "e[@foo and contains(@foo, 'bar')]"),
array('e[hreflang|="en"]', "e[@hreflang and (@hreflang = 'en' or starts-with(@hreflang, 'en-'))]"),
array('e:nth-child(1)', "*/*[name() = 'e' and (position() = 1)]"),
array('e:nth-last-child(1)', "*/*[name() = 'e' and (position() = last() - 1)]"),
array('e:nth-last-child(2n+2)', "*/*[name() = 'e' and ((position() +2) mod -2 = 0 and position() < (last() -2))]"),
array('e:nth-of-type(1)', "*/e[position() = 1]"),
array('e:nth-last-of-type(1)', "*/e[position() = last() - 1]"),
array('e:nth-last-of-type(1)', "*/e[position() = last() - 1]"),
array('div e:nth-last-of-type(1) .aclass', "div/descendant-or-self::*/e[position() = last() - 1]/descendant-or-self::*/*[@class and contains(concat(' ', normalize-space(@class), ' '), ' aclass ')]"),
array('e:first-child', "*/*[name() = 'e' and (position() = 1)]"),
array('e:last-child', "*/*[name() = 'e' and (position() = last())]"),
array('e:first-of-type', "*/e[position() = 1]"),
array('e:last-of-type', "*/e[position() = last()]"),
array('e:only-child', "*/*[name() = 'e' and (last() = 1)]"),
array('e:only-of-type', "e[last() = 1]"),
array('e:empty', "e[not(*) and not(string-length())]"),
array('e:EmPTY', "e[not(*) and not(string-length())]"),
array('e:root', "e[not(parent::*)]"),
array('e:hover', "e[0]"),
array('e:contains("foo")', "e[contains(string(.), 'foo')]"),
array('e:ConTains(foo)', "e[contains(string(.), 'foo')]"),
array('e.warning', "e[@class and contains(concat(' ', normalize-space(@class), ' '), ' warning ')]"),
array('e#myid', "e[@id = 'myid']"),
array('e:not(:nth-child(odd))', "e[not((position() -1) mod 2 = 0 and position() >= 1)]"),
array('e:nOT(*)', "e[0]"),
array('e f', "e/descendant-or-self::*/f"),
array('e > f', "e/f"),
array('e + f', "e/following-sibling::*[name() = 'f' and (position() = 1)]"),
array('e ~ f', "e/following-sibling::f"),
array('div#container p', "div[@id = 'container']/descendant-or-self::*/p"),
);
}
public function getXmlLangTestData()
{
return array(
array(':lang("EN")', array('first', 'second', 'third', 'fourth')),
array(':lang("en-us")', array('second', 'fourth')),
array(':lang(en-nz)', array('third')),
array(':lang(fr)', array('fifth')),
array(':lang(ru)', array('sixth')),
array(":lang('ZH')", array('eighth')),
array(':lang(de) :lang(zh)', array('eighth')),
array(':lang(en), :lang(zh)', array('first', 'second', 'third', 'fourth', 'eighth')),
array(':lang(es)', array()),
);
}
public function getHtmlIdsTestData()
{
return array(
array('div', array('outer-div', 'li-div', 'foobar-div')),
array('DIV', array('outer-div', 'li-div', 'foobar-div')), // case-insensitive in HTML
array('div div', array('li-div')),
array('div, div div', array('outer-div', 'li-div', 'foobar-div')),
array('a[name]', array('name-anchor')),
array('a[NAme]', array('name-anchor')), // case-insensitive in HTML:
array('a[rel]', array('tag-anchor', 'nofollow-anchor')),
array('a[rel="tag"]', array('tag-anchor')),
array('a[href*="localhost"]', array('tag-anchor')),
array('a[href*=""]', array()),
array('a[href^="http"]', array('tag-anchor', 'nofollow-anchor')),
array('a[href^="http:"]', array('tag-anchor')),
array('a[href^=""]', array()),
array('a[href$="org"]', array('nofollow-anchor')),
array('a[href$=""]', array()),
array('div[foobar~="bc"]', array('foobar-div')),
array('div[foobar~="cde"]', array('foobar-div')),
array('[foobar~="ab bc"]', array('foobar-div')),
array('[foobar~=""]', array()),
array('[foobar~=" \t"]', array()),
array('div[foobar~="cd"]', array()),
array('*[lang|="En"]', array('second-li')),
array('[lang|="En-us"]', array('second-li')),
// Attribute values are case sensitive
array('*[lang|="en"]', array()),
array('[lang|="en-US"]', array()),
array('*[lang|="e"]', array()),
// ... :lang() is not.
array(':lang("EN")', array('second-li', 'li-div')),
array('*:lang(en-US)', array('second-li', 'li-div')),
array(':lang("e")', array()),
array('li:nth-child(3)', array('third-li')),
array('li:nth-child(10)', array()),
array('li:nth-child(2n)', array('second-li', 'fourth-li', 'sixth-li')),
array('li:nth-child(even)', array('second-li', 'fourth-li', 'sixth-li')),
array('li:nth-child(2n+0)', array('second-li', 'fourth-li', 'sixth-li')),
array('li:nth-child(+2n+1)', array('first-li', 'third-li', 'fifth-li', 'seventh-li')),
array('li:nth-child(odd)', array('first-li', 'third-li', 'fifth-li', 'seventh-li')),
array('li:nth-child(2n+4)', array('fourth-li', 'sixth-li')),
// FIXME: I'm not 100% sure this is right:
array('li:nth-child(3n+1)', array('first-li', 'fourth-li', 'seventh-li')),
array('li:nth-last-child(0)', array('seventh-li')),
array('li:nth-last-child(2n)', array('second-li', 'fourth-li', 'sixth-li')),
array('li:nth-last-child(even)', array('second-li', 'fourth-li', 'sixth-li')),
array('li:nth-last-child(2n+2)', array('second-li', 'fourth-li')),
array('ol:first-of-type', array('first-ol')),
array('ol:nth-child(1)', array()),
array('ol:nth-of-type(2)', array('second-ol')),
// FIXME: like above (1) or (2)?
array('ol:nth-last-of-type(1)', array('first-ol')),
array('span:only-child', array('foobar-span')),
array('li div:only-child', array('li-div')),
array('div *:only-child', array('li-div', 'foobar-span')),
array('p:only-of-type', array('paragraph')),
array('a:empty', array('name-anchor')),
array('a:EMpty', array('name-anchor')),
array('li:empty', array('third-li', 'fourth-li', 'fifth-li', 'sixth-li')),
array(':root', array('html')),
array('html:root', array('html')),
array('li:root', array()),
array('* :root', array()),
array('*:contains("link")', array('html', 'outer-div', 'tag-anchor', 'nofollow-anchor')),
array(':CONtains("link")', array('html', 'outer-div', 'tag-anchor', 'nofollow-anchor')),
array('*:contains("LInk")', array()), // case sensitive
array('*:contains("e")', array('html', 'nil', 'outer-div', 'first-ol', 'first-li', 'paragraph', 'p-em')),
array('*:contains("E")', array()), // case-sensitive
array('.a', array('first-ol')),
array('.b', array('first-ol')),
array('*.a', array('first-ol')),
array('ol.a', array('first-ol')),
array('.c', array('first-ol', 'third-li', 'fourth-li')),
array('*.c', array('first-ol', 'third-li', 'fourth-li')),
array('ol *.c', array('third-li', 'fourth-li')),
array('ol li.c', array('third-li', 'fourth-li')),
array('li ~ li.c', array('third-li', 'fourth-li')),
array('ol > li.c', array('third-li', 'fourth-li')),
array('#first-li', array('first-li')),
array('li#first-li', array('first-li')),
array('*#first-li', array('first-li')),
array('li div', array('li-div')),
array('li > div', array('li-div')),
array('div div', array('li-div')),
array('div > div', array()),
array('div>.c', array('first-ol')),
array('div > .c', array('first-ol')),
array('div + div', array('foobar-div')),
array('a ~ a', array('tag-anchor', 'nofollow-anchor')),
array('a[rel="tag"] ~ a', array('nofollow-anchor')),
array('ol#first-ol li:last-child', array('seventh-li')),
array('ol#first-ol *:last-child', array('li-div', 'seventh-li')),
array('#outer-div:first-child', array('outer-div')),
array('#outer-div :first-child', array('name-anchor', 'first-li', 'li-div', 'p-b', 'checkbox-fieldset-disabled', 'area-href')),
array('a[href]', array('tag-anchor', 'nofollow-anchor')),
array(':not(*)', array()),
array('a:not([href])', array('name-anchor')),
array('ol :Not(li[class])', array('first-li', 'second-li', 'li-div', 'fifth-li', 'sixth-li', 'seventh-li')),
// HTML-specific
array(':link', array('link-href', 'tag-anchor', 'nofollow-anchor', 'area-href')),
array(':visited', array()),
array(':enabled', array('link-href', 'tag-anchor', 'nofollow-anchor', 'checkbox-unchecked', 'text-checked', 'checkbox-checked', 'area-href')),
array(':disabled', array('checkbox-disabled', 'checkbox-disabled-checked', 'fieldset', 'checkbox-fieldset-disabled')),
array(':checked', array('checkbox-checked', 'checkbox-disabled-checked')),
);
}
public function getHtmlShakespearTestData()
{
return array(
array('*', 246),
array('div:contains(CELIA)', 26),
array('div:only-child', 22), // ?
array('div:nth-child(even)', 106),
array('div:nth-child(2n)', 106),
array('div:nth-child(odd)', 137),
array('div:nth-child(2n+1)', 137),
array('div:nth-child(n)', 243),
array('div:last-child', 53),
array('div:first-child', 51),
array('div > div', 242),
array('div + div', 190),
array('div ~ div', 190),
array('body', 1),
array('body div', 243),
array('div', 243),
array('div div', 242),
array('div div div', 241),
array('div, div, div', 243),
array('div, a, span', 243),
array('.dialog', 51),
array('div.dialog', 51),
array('div .dialog', 51),
array('div.character, div.dialog', 99),
array('div.direction.dialog', 0),
array('div.dialog.direction', 0),
array('div.dialog.scene', 1),
array('div.scene.scene', 1),
array('div.scene .scene', 0),
array('div.direction .dialog ', 0),
array('div .dialog .direction', 4),
array('div.dialog .dialog .direction', 4),
array('#speech5', 1),
array('div#speech5', 1),
array('div #speech5', 1),
array('div.scene div.dialog', 49),
array('div#scene1 div.dialog div', 142),
array('#scene1 #speech1', 1),
array('div[class]', 103),
array('div[class=dialog]', 50),
array('div[class^=dia]', 51),
array('div[class$=log]', 50),
array('div[class*=sce]', 1),
array('div[class|=dialog]', 50), // ? Seems right
array('div[class!=madeup]', 243), // ? Seems right
array('div[class~=dialog]', 51), // ? Seems right
);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\Tests;
use Symfony\Component\CssSelector\XPathExpr;
class XPathExprTest extends \PHPUnit_Framework_TestCase
{
/**
* @dataProvider getXPathLiteralValues
*/
public function testXpathLiteral($value, $literal)
{
$this->assertEquals($literal, XPathExpr::xpathLiteral($value));
}
public function getXPathLiteralValues()
{
return array(
array('foo', "'foo'"),
array("foo's bar", '"foo\'s bar"'),
array("foo's \"middle\" bar", 'concat(\'foo\', "\'", \'s "middle" bar\')'),
array("foo's 'middle' \"bar\"", 'concat(\'foo\', "\'", \'s \', "\'", \'middle\', "\'", \' "bar"\')'),
);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
spl_autoload_register(function ($class) {
if (0 === strpos(ltrim($class, '/'), 'Symfony\Component\CssSelector')) {
if (file_exists($file = __DIR__.'/../'.substr(str_replace('\\', '/', $class), strlen('Symfony\Component\CssSelector')).'.php')) {
require_once $file;
}
}
});
if (file_exists($loader = __DIR__.'/../vendor/autoload.php')) {
require_once $loader;
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector;
/**
* Token represents a CSS Selector token.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Token
{
private $type;
private $value;
private $position;
/**
* Constructor.
*
* @param string $type The type of this token.
* @param mixed $value The value of this token.
* @param integer $position The order of this token.
*/
public function __construct($type, $value, $position)
{
$this->type = $type;
$this->value = $value;
$this->position = $position;
}
/**
* Gets a string representation of this token.
*
* @return string
*/
public function __toString()
{
return (string) $this->value;
}
/**
* Answers whether this token's type equals to $type.
*
* @param string $type The type to test against this token's one.
*
* @return Boolean
*/
public function isType($type)
{
return $this->type == $type;
}
/**
* Gets the position of this token.
*
* @return integer
*/
public function getPosition()
{
return $this->position;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector;
/**
* TokenStream represents a stream of CSS Selector tokens.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class TokenStream
{
private $used;
private $tokens;
private $source;
private $peeked;
private $peeking;
/**
* Constructor.
*
* @param array $tokens The tokens that make the stream.
* @param mixed $source The source of the stream.
*/
public function __construct($tokens, $source = null)
{
$this->used = array();
$this->tokens = $tokens;
$this->source = $source;
$this->peeked = null;
$this->peeking = false;
}
/**
* Gets the tokens that have already been visited in this stream.
*
* @return array
*/
public function getUsed()
{
return $this->used;
}
/**
* Gets the next token in the stream or null if there is none.
* Note that if this stream was set to be peeking its behavior
* will be restored to not peeking after this operation.
*
* @return mixed
*/
public function next()
{
if ($this->peeking) {
$this->peeking = false;
$this->used[] = $this->peeked;
return $this->peeked;
}
if (!count($this->tokens)) {
return null;
}
$next = array_shift($this->tokens);
$this->used[] = $next;
return $next;
}
/**
* Peeks for the next token in this stream. This means that the next token
* will be returned but it won't be considered as used (visited) until the
* next() method is invoked.
* If there are no remaining tokens null will be returned.
*
* @see next()
*
* @return mixed
*/
public function peek()
{
if (!$this->peeking) {
if (!count($this->tokens)) {
return null;
}
$this->peeked = array_shift($this->tokens);
$this->peeking = true;
}
return $this->peeked;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector;
use Symfony\Component\CssSelector\Exception\ParseException;
/**
* Tokenizer lexes a CSS Selector to tokens.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Tokenizer
{
/**
* Takes a CSS selector and returns an array holding the Tokens
* it contains.
*
* @param string $s The selector to lex.
*
* @return array Token[]
*/
public function tokenize($s)
{
if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) {
$mbEncoding = mb_internal_encoding();
mb_internal_encoding('ASCII');
}
$tokens = array();
$pos = 0;
$s = preg_replace('#/\*.*?\*/#s', '', $s);
while (true) {
if (preg_match('#\s+#A', $s, $match, 0, $pos)) {
$precedingWhitespacePos = $pos;
$pos += strlen($match[0]);
} else {
$precedingWhitespacePos = 0;
}
if ($pos >= strlen($s)) {
if (isset($mbEncoding)) {
mb_internal_encoding($mbEncoding);
}
return $tokens;
}
if (preg_match('#[+-]?\d*n(?:[+-]\d+)?#A', $s, $match, 0, $pos) && 'n' !== $match[0]) {
$sym = substr($s, $pos, strlen($match[0]));
$tokens[] = new Token('Symbol', $sym, $pos);
$pos += strlen($match[0]);
continue;
}
$c = $s[$pos];
$c2 = substr($s, $pos, 2);
if (in_array($c2, array('~=', '|=', '^=', '$=', '*=', '::', '!='))) {
$tokens[] = new Token('Token', $c2, $pos);
$pos += 2;
continue;
}
if (in_array($c, array('>', '+', '~', ',', '.', '*', '=', '[', ']', '(', ')', '|', ':', '#'))) {
if (in_array($c, array('.', '#', '[')) && $precedingWhitespacePos > 0) {
$tokens[] = new Token('Token', ' ', $precedingWhitespacePos);
}
$tokens[] = new Token('Token', $c, $pos);
++$pos;
continue;
}
if ('"' === $c || "'" === $c) {
// Quoted string
$oldPos = $pos;
list($sym, $pos) = $this->tokenizeEscapedString($s, $pos);
$tokens[] = new Token('String', $sym, $oldPos);
continue;
}
$oldPos = $pos;
list($sym, $pos) = $this->tokenizeSymbol($s, $pos);
$tokens[] = new Token('Symbol', $sym, $oldPos);
continue;
}
}
/**
* Tokenizes a quoted string (i.e. 'A string quoted with \' characters'),
* and returns an array holding the unquoted string contained by $s and
* the new position from which tokenizing should take over.
*
* @param string $s The selector string containing the quoted string.
* @param integer $pos The starting position for the quoted string.
*
* @return array
*
* @throws ParseException When expected closing is not found
*/
private function tokenizeEscapedString($s, $pos)
{
$quote = $s[$pos];
$pos = $pos + 1;
$start = $pos;
while (true) {
$next = strpos($s, $quote, $pos);
if (false === $next) {
throw new ParseException(sprintf('Expected closing %s for string in: %s', $quote, substr($s, $start)));
}
$result = substr($s, $start, $next - $start);
if (strlen($result) > 0 && '\\' === $result[strlen($result) - 1]) {
// next quote character is escaped
$pos = $next + 1;
continue;
}
if (false !== strpos($result, '\\')) {
$result = $this->unescapeStringLiteral($result);
}
return array($result, $next + 1);
}
}
/**
* Unescapes a string literal and returns the unescaped string.
*
* @param string $literal The string literal to unescape.
*
* @return string
*
* @throws ParseException When invalid escape sequence is found
*/
private function unescapeStringLiteral($literal)
{
return preg_replace_callback('#(\\\\(?:[A-Fa-f0-9]{1,6}(?:\r\n|\s)?|[^A-Fa-f0-9]))#', function ($matches) use ($literal) {
if ($matches[0][0] == '\\' && strlen($matches[0]) > 1) {
$matches[0] = substr($matches[0], 1);
if (in_array($matches[0][0], array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'a', 'b', 'c', 'd', 'e', 'f'))) {
return chr(trim($matches[0]));
}
} else {
throw new ParseException(sprintf('Invalid escape sequence %s in string %s', $matches[0], $literal));
}
}, $literal);
}
/**
* Lexes selector $s and returns an array holding the name of the symbol
* contained in it and the new position from which tokenizing should take
* over.
*
* @param string $s The selector string.
* @param integer $pos The position in $s at which the symbol starts.
*
* @return array
*
* @throws ParseException When Unexpected symbol is found
*/
private function tokenizeSymbol($s, $pos)
{
$start = $pos;
if (!preg_match('#[^\w\-]#', $s, $match, PREG_OFFSET_CAPTURE, $pos)) {
// Goes to end of s
return array(substr($s, $start), strlen($s));
}
$matchStart = $match[0][1];
if ($matchStart == $pos) {
throw new ParseException(sprintf('Unexpected symbol: %s at %s', $s[$pos], $pos));
}
$result = substr($s, $start, $matchStart - $start);
$pos = $matchStart;
return array($result, $pos);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
/**
* XPath expression translator abstract extension.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
abstract class AbstractExtension implements ExtensionInterface
{
/**
* {@inheritdoc}
*/
public function getNodeTranslators()
{
return array();
}
/**
* {@inheritdoc}
*/
public function getCombinationTranslators()
{
return array();
}
/**
* {@inheritdoc}
*/
public function getFunctionTranslators()
{
return array();
}
/**
* {@inheritdoc}
*/
public function getPseudoClassTranslators()
{
return array();
}
/**
* {@inheritdoc}
*/
public function getAttributeMatchingTranslators()
{
return array();
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
use Symfony\Component\CssSelector\XPath\Translator;
use Symfony\Component\CssSelector\XPath\XPathExpr;
/**
* XPath expression translator attribute extension.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class AttributeMatchingExtension extends AbstractExtension
{
/**
* {@inheritdoc}
*/
public function getAttributeMatchingTranslators()
{
return array(
'exists' => array($this, 'translateExists'),
'=' => array($this, 'translateEquals'),
'~=' => array($this, 'translateIncludes'),
'|=' => array($this, 'translateDashMatch'),
'^=' => array($this, 'translatePrefixMatch'),
'$=' => array($this, 'translateSuffixMatch'),
'*=' => array($this, 'translateSubstringMatch'),
'!=' => array($this, 'translateDifferent'),
);
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translateExists(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition($attribute);
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translateEquals(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value)));
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translateIncludes(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition($value ? sprintf(
'%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)',
$attribute,
Translator::getXpathLiteral(' '.$value.' ')
) : '0');
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translateDashMatch(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition(sprintf(
'%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))',
$attribute,
Translator::getXpathLiteral($value),
Translator::getXpathLiteral($value.'-')
));
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translatePrefixMatch(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition($value ? sprintf(
'%1$s and starts-with(%1$s, %2$s)',
$attribute,
Translator::getXpathLiteral($value)
) : '0');
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translateSuffixMatch(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition($value ? sprintf(
'%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s',
$attribute,
strlen($value) - 1,
Translator::getXpathLiteral($value)
) : '0');
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translateSubstringMatch(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition($value ? sprintf(
'%1$s and contains(%1$s, %2$s)',
$attribute,
Translator::getXpathLiteral($value)
) : '0');
}
/**
* @param XPathExpr $xpath
* @param string $attribute
* @param string $value
*
* @return XPathExpr
*/
public function translateDifferent(XPathExpr $xpath, $attribute, $value)
{
return $xpath->addCondition(sprintf(
$value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s',
$attribute,
Translator::getXpathLiteral($value)
));
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'attribute-matching';
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
use Symfony\Component\CssSelector\XPath\XPathExpr;
/**
* XPath expression translator combination extension.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class CombinationExtension extends AbstractExtension
{
/**
* {@inheritdoc}
*/
public function getCombinationTranslators()
{
return array(
' ' => array($this, 'translateDescendant'),
'>' => array($this, 'translateChild'),
'+' => array($this, 'translateDirectAdjacent'),
'~' => array($this, 'translateIndirectAdjacent'),
);
}
/**
* @param XPathExpr $xpath
* @param XPathExpr $combinedXpath
*
* @return XPathExpr
*/
public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath)
{
return $xpath->join('/descendant-or-self::*/', $combinedXpath);
}
/**
* @param XPathExpr $xpath
* @param XPathExpr $combinedXpath
*
* @return XPathExpr
*/
public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath)
{
return $xpath->join('/', $combinedXpath);
}
/**
* @param XPathExpr $xpath
* @param XPathExpr $combinedXpath
*
* @return XPathExpr
*/
public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath)
{
return $xpath
->join('/following-sibling::', $combinedXpath)
->addNameTest()
->addCondition('position() = 1');
}
/**
* @param XPathExpr $xpath
* @param XPathExpr $combinedXpath
*
* @return XPathExpr
*/
public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath)
{
return $xpath->join('/following-sibling::', $combinedXpath);
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'combination';
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
/**
* XPath expression translator extension interface.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
interface ExtensionInterface
{
/**
* Returns node translators.
*
* @return callable[]
*/
public function getNodeTranslators();
/**
* Returns combination translators.
*
* @return callable[]
*/
public function getCombinationTranslators();
/**
* Returns function translators.
*
* @return callable[]
*/
public function getFunctionTranslators();
/**
* Returns pseudo-class translators.
*
* @return callable[]
*/
public function getPseudoClassTranslators();
/**
* Returns attribute operation translators.
*
* @return callable[]
*/
public function getAttributeMatchingTranslators();
/**
* Returns extension name.
*
* @return string
*/
public function getName();
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
use Symfony\Component\CssSelector\Node\FunctionNode;
use Symfony\Component\CssSelector\Parser\Parser;
use Symfony\Component\CssSelector\XPath\Translator;
use Symfony\Component\CssSelector\XPath\XPathExpr;
/**
* XPath expression translator function extension.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class FunctionExtension extends AbstractExtension
{
/**
* {@inheritdoc}
*/
public function getFunctionTranslators()
{
return array(
'nth-child' => array($this, 'translateNthChild'),
'nth-last-child' => array($this, 'translateNthLastChild'),
'nth-of-type' => array($this, 'translateNthOfType'),
'nth-last-of-type' => array($this, 'translateNthLastOfType'),
'contains' => array($this, 'translateContains'),
'lang' => array($this, 'translateLang'),
);
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
* @param boolean $last
* @param boolean $addNameTest
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateNthChild(XPathExpr $xpath, FunctionNode $function, $last = false, $addNameTest = true)
{
try {
list($a, $b) = Parser::parseSeries($function->getArguments());
} catch (SyntaxErrorException $e) {
throw new ExpressionErrorException('Invalid series: '.implode(', ', $function->getArguments()), 0, $e);
}
$xpath->addStarPrefix();
if ($addNameTest) {
$xpath->addNameTest();
}
if (0 === $a) {
return $xpath->addCondition('position() = '.($last ? 'last() - '.$b : $b));
}
if ($last) {
// todo: verify if this is right
$a = - $a;
$b = - $b;
}
$conditions = 1 === $a
? array()
: array(sprintf('(position() %s) mod %s = 0', $b > 0 ? (string) (- $b) : '+'.(- $b), $a));
if ($b >= 0) {
$conditions[] = 'position() >= '.$b;
} elseif ($last) {
$conditions[] = sprintf('position() < (last() %s)', $b);
}
// todo: handle an+b, odd, even
// an+b means every-a, plus b, e.g., 2n+1 means odd
// 0n+b means b
// n+0 means a=1, i.e., all elements
// an means every a elements, i.e., 2n means even
// -n means -1n
// -1n+6 means elements 6 and previous
return empty($conditions) ? $xpath : $xpath->addCondition(implode(' and ', $conditions));
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*/
public function translateNthLastChild(XPathExpr $xpath, FunctionNode $function)
{
return $this->translateNthChild($xpath, $function, true);
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*/
public function translateNthOfType(XPathExpr $xpath, FunctionNode $function)
{
return $this->translateNthChild($xpath, $function, false, false);
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateNthLastOfType(XPathExpr $xpath, FunctionNode $function)
{
if ('*' === $xpath->getElement()) {
throw new ExpressionErrorException('"*:nth-of-type()" is not implemented.');
}
return $this->translateNthChild($xpath, $function, true, false);
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateContains(XPathExpr $xpath, FunctionNode $function)
{
$arguments = $function->getArguments();
foreach ($arguments as $token) {
if (!($token->isString() || $token->isIdentifier())) {
throw new ExpressionErrorException(
'Expected a single string or identifier for :contains(), got '
.implode(', ', $arguments)
);
}
}
return $xpath->addCondition(sprintf(
'contains(string(.), %s)',
Translator::getXpathLiteral($arguments[0]->getValue())
));
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateLang(XPathExpr $xpath, FunctionNode $function)
{
$arguments = $function->getArguments();
foreach ($arguments as $token) {
if (!($token->isString() || $token->isIdentifier())) {
throw new ExpressionErrorException(
'Expected a single string or identifier for :lang(), got '
.implode(', ', $arguments)
);
}
}
return $xpath->addCondition(sprintf(
'lang(%s)',
Translator::getXpathLiteral($arguments[0]->getValue())
));
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'function';
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
use Symfony\Component\CssSelector\Node\FunctionNode;
use Symfony\Component\CssSelector\XPath\Translator;
use Symfony\Component\CssSelector\XPath\XPathExpr;
/**
* XPath expression translator HTML extension.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class HtmlExtension extends AbstractExtension
{
/**
* Constructor.
*
* @param Translator $translator
*/
public function __construct(Translator $translator)
{
$translator
->getExtension('node')
->setFlag(NodeExtension::ELEMENT_NAME_IN_LOWER_CASE, true)
->setFlag(NodeExtension::ATTRIBUTE_NAME_IN_LOWER_CASE, true);
}
/**
* {@inheritdoc}
*/
public function getPseudoClassTranslators()
{
return array(
'checked' => array($this, 'translateChecked'),
'link' => array($this, 'translateLink'),
'disabled' => array($this, 'translateDisabled'),
'enabled' => array($this, 'translateEnabled'),
'selected' => array($this, 'translateSelected'),
'invalid' => array($this, 'translateInvalid'),
'hover' => array($this, 'translateHover'),
'visited' => array($this, 'translateVisited'),
);
}
/**
* {@inheritdoc}
*/
public function getFunctionTranslators()
{
return array(
'lang' => array($this, 'translateLang'),
);
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateChecked(XPathExpr $xpath)
{
return $xpath->addCondition(
'(@checked '
."and (name(.) = 'input' or name(.) = 'command')"
."and (@type = 'checkbox' or @type = 'radio'))"
);
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateLink(XPathExpr $xpath)
{
return $xpath->addCondition("@href and (name(.) = 'a' or name(.) = 'link' or name(.) = 'area')");
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateDisabled(XPathExpr $xpath)
{
return $xpath->addCondition(
"("
."@disabled and"
."("
."(name(.) = 'input' and @type != 'hidden')"
." or name(.) = 'button'"
." or name(.) = 'select'"
." or name(.) = 'textarea'"
." or name(.) = 'command'"
." or name(.) = 'fieldset'"
." or name(.) = 'optgroup'"
." or name(.) = 'option'"
.")"
.") or ("
."(name(.) = 'input' and @type != 'hidden')"
." or name(.) = 'button'"
." or name(.) = 'select'"
." or name(.) = 'textarea'"
.")"
." and ancestor::fieldset[@disabled]"
);
// todo: in the second half, add "and is not a descendant of that fieldset element's first legend element child, if any."
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateEnabled(XPathExpr $xpath)
{
return $xpath->addCondition(
'('
.'@href and ('
."name(.) = 'a'"
." or name(.) = 'link'"
." or name(.) = 'area'"
.')'
.') or ('
.'('
."name(.) = 'command'"
." or name(.) = 'fieldset'"
." or name(.) = 'optgroup'"
.')'
.' and not(@disabled)'
.') or ('
.'('
."(name(.) = 'input' and @type != 'hidden')"
." or name(.) = 'button'"
." or name(.) = 'select'"
." or name(.) = 'textarea'"
." or name(.) = 'keygen'"
.')'
." and not (@disabled or ancestor::fieldset[@disabled])"
.') or ('
."name(.) = 'option' and not("
."@disabled or ancestor::optgroup[@disabled]"
.')'
.')'
);
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateLang(XPathExpr $xpath, FunctionNode $function)
{
$arguments = $function->getArguments();
foreach ($arguments as $token) {
if (!($token->isString() || $token->isIdentifier())) {
throw new ExpressionErrorException(
'Expected a single string or identifier for :lang(), got '
.implode(', ', $arguments)
);
}
}
return $xpath->addCondition(sprintf(
'ancestor-or-self::*[@lang][1][starts-with(concat('
."translate(@%s, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), '-')"
.', %s)]',
'lang',
Translator::getXpathLiteral(strtolower($arguments[0]->getValue()).'-')
));
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateSelected(XPathExpr $xpath)
{
return $xpath->addCondition("(@selected and name(.) = 'option')");
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateInvalid(XPathExpr $xpath)
{
return $xpath->addCondition('0');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateHover(XPathExpr $xpath)
{
return $xpath->addCondition('0');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateVisited(XPathExpr $xpath)
{
return $xpath->addCondition('0');
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'html';
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
use Symfony\Component\CssSelector\Node;
use Symfony\Component\CssSelector\XPath\Translator;
use Symfony\Component\CssSelector\XPath\XPathExpr;
/**
* XPath expression translator node extension.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class NodeExtension extends AbstractExtension
{
const ELEMENT_NAME_IN_LOWER_CASE = 1;
const ATTRIBUTE_NAME_IN_LOWER_CASE = 2;
const ATTRIBUTE_VALUE_IN_LOWER_CASE = 4;
/**
* @var Translator
*/
private $translator;
/**
* @var int
*/
private $flags;
/**
* Constructor.
*
* @param Translator $translator
* @param int $flags
*/
public function __construct(Translator $translator, $flags = 0)
{
$this->translator = $translator;
$this->flags = $flags;
}
/**
* @param int $flag
* @param boolean $on
*
* @return NodeExtension
*/
public function setFlag($flag, $on)
{
if ($on && !$this->hasFlag($flag)) {
$this->flags += $flag;
}
if (!$on && $this->hasFlag($flag)) {
$this->flags -= $flag;
}
return $this;
}
/**
* @param int $flag
*
* @return boolean
*/
public function hasFlag($flag)
{
return $this->flags & $flag;
}
/**
* {@inheritdoc}
*/
public function getNodeTranslators()
{
return array(
'Selector' => array($this, 'translateSelector'),
'CombinedSelector' => array($this, 'translateCombinedSelector'),
'Negation' => array($this, 'translateNegation'),
'Function' => array($this, 'translateFunction'),
'Pseudo' => array($this, 'translatePseudo'),
'Attribute' => array($this, 'translateAttribute'),
'Class' => array($this, 'translateClass'),
'Hash' => array($this, 'translateHash'),
'Element' => array($this, 'translateElement'),
);
}
/**
* @param Node\SelectorNode $node
*
* @return XPathExpr
*/
public function translateSelector(Node\SelectorNode $node)
{
return $this->translator->nodeToXPath($node->getTree());
}
/**
* @param Node\CombinedSelectorNode $node
*
* @return XPathExpr
*/
public function translateCombinedSelector(Node\CombinedSelectorNode $node)
{
return $this->translator->addCombination($node->getCombinator(), $node->getSelector(), $node->getSubSelector());
}
/**
* @param Node\NegationNode $node
*
* @return XPathExpr
*/
public function translateNegation(Node\NegationNode $node)
{
$xpath = $this->translator->nodeToXPath($node->getSelector());
$subXpath = $this->translator->nodeToXPath($node->getSubSelector());
$subXpath->addNameTest();
if ($subXpath->getCondition()) {
return $xpath->addCondition(sprintf('not(%s)', $subXpath->getCondition()));
}
return $xpath->addCondition('0');
}
/**
* @param Node\FunctionNode $node
*
* @return XPathExpr
*/
public function translateFunction(Node\FunctionNode $node)
{
$xpath = $this->translator->nodeToXPath($node->getSelector());
return $this->translator->addFunction($xpath, $node);
}
/**
* @param Node\PseudoNode $node
*
* @return XPathExpr
*/
public function translatePseudo(Node\PseudoNode $node)
{
$xpath = $this->translator->nodeToXPath($node->getSelector());
return $this->translator->addPseudoClass($xpath, $node->getIdentifier());
}
/**
* @param Node\AttributeNode $node
*
* @return XPathExpr
*/
public function translateAttribute(Node\AttributeNode $node)
{
$name = $node->getAttribute();
$safe = $this->isSafeName($name);
if ($this->hasFlag(self::ATTRIBUTE_NAME_IN_LOWER_CASE)) {
$name = strtolower($name);
}
if ($node->getNamespace()) {
$name = sprintf('%s:%s', $node->getNamespace(), $name);
$safe = $safe && $this->isSafeName($node->getNamespace());
}
$attribute = $safe ? '@'.$name : sprintf('attribute::*[name() = %s]', Translator::getXpathLiteral($name));
$value = $node->getValue();
$xpath = $this->translator->nodeToXPath($node->getSelector());
if ($this->hasFlag(self::ATTRIBUTE_VALUE_IN_LOWER_CASE)) {
$value = strtolower($value);
}
return $this->translator->addAttributeMatching($xpath, $node->getOperator(), $attribute, $value);
}
/**
* @param Node\ClassNode $node
*
* @return XPathExpr
*/
public function translateClass(Node\ClassNode $node)
{
$xpath = $this->translator->nodeToXPath($node->getSelector());
return $this->translator->addAttributeMatching($xpath, '~=', '@class', $node->getName());
}
/**
* @param Node\HashNode $node
*
* @return XPathExpr
*/
public function translateHash(Node\HashNode $node)
{
$xpath = $this->translator->nodeToXPath($node->getSelector());
return $this->translator->addAttributeMatching($xpath, '=', '@id', $node->getId());
}
/**
* @param Node\ElementNode $node
*
* @return XPathExpr
*/
public function translateElement(Node\ElementNode $node)
{
$element = $node->getElement();
if ($this->hasFlag(self::ELEMENT_NAME_IN_LOWER_CASE)) {
$element = strtolower($element);
}
if ($element) {
$safe = $this->isSafeName($element);
} else {
$element = '*';
$safe = true;
}
if ($node->getNamespace()) {
$element = sprintf('%s:%s', $node->getNamespace(), $element);
$safe = $safe && $this->isSafeName($node->getNamespace());
}
$xpath = new XPathExpr('', $element);
if (!$safe) {
$xpath->addNameTest();
}
return $xpath;
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'node';
}
/**
* Tests if given name is safe.
*
* @param string $name
*
* @return boolean
*/
private function isSafeName($name)
{
return 0 < preg_match('~^[a-zA-Z_][a-zA-Z0-9_.-]*$~', $name);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath\Extension;
use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
use Symfony\Component\CssSelector\XPath\XPathExpr;
/**
* XPath expression translator pseudo-class extension.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class PseudoClassExtension extends AbstractExtension
{
/**
* {@inheritdoc}
*/
public function getPseudoClassTranslators()
{
return array(
'root' => array($this, 'translateRoot'),
'first-child' => array($this, 'translateFirstChild'),
'last-child' => array($this, 'translateLastChild'),
'first-of-type' => array($this, 'translateFirstOfType'),
'last-of-type' => array($this, 'translateLastOfType'),
'only-child' => array($this, 'translateOnlyChild'),
'only-of-type' => array($this, 'translateOnlyOfType'),
'empty' => array($this, 'translateEmpty'),
);
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateRoot(XPathExpr $xpath)
{
return $xpath->addCondition('not(parent::*)');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateFirstChild(XPathExpr $xpath)
{
return $xpath
->addStarPrefix()
->addNameTest()
->addCondition('position() = 1');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateLastChild(XPathExpr $xpath)
{
return $xpath
->addStarPrefix()
->addNameTest()
->addCondition('position() = last()');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateFirstOfType(XPathExpr $xpath)
{
if ('*' === $xpath->getElement()) {
throw new ExpressionErrorException('"*:first-of-type" is not implemented.');
}
return $xpath
->addStarPrefix()
->addCondition('position() = 1');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateLastOfType(XPathExpr $xpath)
{
if ('*' === $xpath->getElement()) {
throw new ExpressionErrorException('"*:last-of-type" is not implemented.');
}
return $xpath
->addStarPrefix()
->addCondition('position() = last()');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateOnlyChild(XPathExpr $xpath)
{
return $xpath
->addStarPrefix()
->addNameTest()
->addCondition('last() = 1');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateOnlyOfType(XPathExpr $xpath)
{
if ('*' === $xpath->getElement()) {
throw new ExpressionErrorException('"*:only-of-type" is not implemented.');
}
return $xpath->addCondition('last() = 1');
}
/**
* @param XPathExpr $xpath
*
* @return XPathExpr
*/
public function translateEmpty(XPathExpr $xpath)
{
return $xpath->addCondition('not(*) and not(string-length())');
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'pseudo-class';
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath;
use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
use Symfony\Component\CssSelector\Node\FunctionNode;
use Symfony\Component\CssSelector\Node\NodeInterface;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\Parser;
use Symfony\Component\CssSelector\Parser\ParserInterface;
use Symfony\Component\CssSelector\XPath\Extension;
/**
* XPath expression translator interface.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class Translator implements TranslatorInterface
{
/**
* @var ParserInterface
*/
private $mainParser;
/**
* @var ParserInterface[]
*/
private $shortcutParsers = array();
/**
* @var Extension\ExtensionInterface
*/
private $extensions = array();
/**
* @var array
*/
private $nodeTranslators = array();
/**
* @var array
*/
private $combinationTranslators = array();
/**
* @var array
*/
private $functionTranslators = array();
/**
* @var array
*/
private $pseudoClassTranslators = array();
/**
* @var array
*/
private $attributeMatchingTranslators = array();
/**
* Constructor.
*/
public function __construct(ParserInterface $parser = null)
{
$this->mainParser = $parser ?: new Parser();
$this
->registerExtension(new Extension\NodeExtension($this))
->registerExtension(new Extension\CombinationExtension())
->registerExtension(new Extension\FunctionExtension())
->registerExtension(new Extension\PseudoClassExtension())
->registerExtension(new Extension\AttributeMatchingExtension())
;
}
/**
* @param string $element
*
* @return string
*/
public static function getXpathLiteral($element)
{
if (false === strpos($element, "'")) {
return "'".$element."'";
}
if (false === strpos($element, '"')) {
return '"'.$element.'"';
}
$string = $element;
$parts = array();
while (true) {
if (false !== $pos = strpos($string, "'")) {
$parts[] = sprintf("'%s'", substr($string, 0, $pos));
$parts[] = "\"'\"";
$string = substr($string, $pos + 1);
} else {
$parts[] = "'$string'";
break;
}
}
return sprintf('concat(%s)', implode($parts, ', '));
}
/**
* {@inheritdoc}
*/
public function cssToXPath($cssExpr, $prefix = 'descendant-or-self::')
{
$selectors = $this->parseSelectors($cssExpr);
/** @var SelectorNode $selector */
foreach ($selectors as $selector) {
if (null !== $selector->getPseudoElement()) {
throw new ExpressionErrorException('Pseudo-elements are not supported.');
}
}
$translator = $this;
return implode(' | ', array_map(function (SelectorNode $selector) use ($translator, $prefix) {
return $translator->selectorToXPath($selector, $prefix);
}, $selectors));
}
/**
* {@inheritdoc}
*/
public function selectorToXPath(SelectorNode $selector, $prefix = 'descendant-or-self::')
{
return ($prefix ?: '').$this->nodeToXPath($selector);
}
/**
* Registers an extension.
*
* @param Extension\ExtensionInterface $extension
*
* @return Translator
*/
public function registerExtension(Extension\ExtensionInterface $extension)
{
$this->extensions[$extension->getName()] = $extension;
$this->nodeTranslators = array_merge($this->nodeTranslators, $extension->getNodeTranslators());
$this->combinationTranslators = array_merge($this->combinationTranslators, $extension->getCombinationTranslators());
$this->functionTranslators = array_merge($this->functionTranslators, $extension->getFunctionTranslators());
$this->pseudoClassTranslators = array_merge($this->pseudoClassTranslators, $extension->getPseudoClassTranslators());
$this->attributeMatchingTranslators = array_merge($this->attributeMatchingTranslators, $extension->getAttributeMatchingTranslators());
return $this;
}
/**
* @param string $name
*
* @return Extension\ExtensionInterface
*
* @throws ExpressionErrorException
*/
public function getExtension($name)
{
if (!isset($this->extensions[$name])) {
throw new ExpressionErrorException('Extension "'.$name.'" not registered.');
}
return $this->extensions[$name];
}
/**
* Registers a shortcut parser.
*
* @param ParserInterface $shortcut
*
* @return Translator
*/
public function registerParserShortcut(ParserInterface $shortcut)
{
$this->shortcutParsers[] = $shortcut;
return $this;
}
/**
* @param NodeInterface $node
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function nodeToXPath(NodeInterface $node)
{
if (!isset($this->nodeTranslators[$node->getNodeName()])) {
throw new ExpressionErrorException('Node "'.$node->getNodeName().'" not supported.');
}
return call_user_func($this->nodeTranslators[$node->getNodeName()], $node);
}
/**
* @param string $combiner
* @param NodeInterface $xpath
* @param NodeInterface $combinedXpath
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function addCombination($combiner, NodeInterface $xpath, NodeInterface $combinedXpath)
{
if (!isset($this->combinationTranslators[$combiner])) {
throw new ExpressionErrorException('Combiner "'.$combiner.'" not supported.');
}
return call_user_func($this->combinationTranslators[$combiner], $this->nodeToXPath($xpath), $this->nodeToXPath($combinedXpath));
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function addFunction(XPathExpr $xpath, FunctionNode $function)
{
if (!isset($this->functionTranslators[$function->getName()])) {
throw new ExpressionErrorException('Function "'.$function->getName().'" not supported.');
}
return call_user_func($this->functionTranslators[$function->getName()], $xpath, $function);
}
/**
* @param XPathExpr $xpath
* @param string $pseudoClass
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function addPseudoClass(XPathExpr $xpath, $pseudoClass)
{
if (!isset($this->pseudoClassTranslators[$pseudoClass])) {
throw new ExpressionErrorException('Pseudo-class "'.$pseudoClass.'" not supported.');
}
return call_user_func($this->pseudoClassTranslators[$pseudoClass], $xpath);
}
/**
* @param XPathExpr $xpath
* @param string $operator
* @param string $attribute
* @param string $value
*
* @throws ExpressionErrorException
*
* @return XPathExpr
*/
public function addAttributeMatching(XPathExpr $xpath, $operator, $attribute, $value)
{
if (!isset($this->attributeMatchingTranslators[$operator])) {
throw new ExpressionErrorException('Attribute matcher operator "'.$operator.'" not supported.');
}
return call_user_func($this->attributeMatchingTranslators[$operator], $xpath, $attribute, $value);
}
/**
* @param string $css
*
* @return SelectorNode[]
*/
private function parseSelectors($css)
{
foreach ($this->shortcutParsers as $shortcut) {
$tokens = $shortcut->parse($css);
if (!empty($tokens)) {
return $tokens;
}
}
return $this->mainParser->parse($css);
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath;
use Symfony\Component\CssSelector\Node\SelectorNode;
/**
* XPath expression translator interface.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
interface TranslatorInterface
{
/**
* Translates a CSS selector to an XPath expression.
*
* @param string $cssExpr
* @param string $prefix
*
* @return XPathExpr
*/
public function cssToXPath($cssExpr, $prefix = 'descendant-or-self::');
/**
* Translates a parsed selector node to an XPath expression
*
* @param SelectorNode $selector
* @param string $prefix
*
* @return XPathExpr
*/
public function selectorToXPath(SelectorNode $selector, $prefix = 'descendant-or-self::');
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector\XPath;
/**
* XPath expression translator interface.
*
* This component is a port of the Python cssselector library,
* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
class XPathExpr
{
/**
* @var string
*/
private $path;
/**
* @var string
*/
private $element;
/**
* @var string
*/
private $condition;
/**
* @param string $path
* @param string $element
* @param string $condition
* @param boolean $starPrefix
*/
public function __construct($path = '', $element = '*', $condition = '', $starPrefix = false)
{
$this->path = $path;
$this->element = $element;
$this->condition = $condition;
if ($starPrefix) {
$this->addStarPrefix();
}
}
/**
* @return string
*/
public function getElement()
{
return $this->element;
}
/**
* @param $condition
*
* @return XPathExpr
*/
public function addCondition($condition)
{
$this->condition = $this->condition ? sprintf('%s and (%s)', $this->condition, $condition) : $condition;
return $this;
}
/**
* @return string
*/
public function getCondition()
{
return $this->condition;
}
/**
* @return XPathExpr
*/
public function addNameTest()
{
if ('*' !== $this->element) {
$this->addCondition('name() = '.Translator::getXpathLiteral($this->element));
$this->element = '*';
}
return $this;
}
/**
* @return XPathExpr
*/
public function addStarPrefix()
{
$this->path .= '*/';
return $this;
}
/**
* Joins another XPathExpr with a combiner.
*
* @param string $combiner
* @param XPathExpr $expr
*
* @return XPathExpr
*/
public function join($combiner, XPathExpr $expr)
{
$path = $this->__toString().$combiner;
if ('*/' !== $expr->path) {
$path .= $expr->path;
}
$this->path = $path;
$this->element = $expr->element;
$this->condition = $expr->condition;
return $this;
}
/**
* @return string
*/
public function __toString()
{
$path = $this->path.$this->element;
$condition = null === $this->condition || '' === $this->condition ? '' : '['.$this->condition.']';
return $path.$condition;
}
}

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector;
/**
* XPathExpr represents an XPath expression.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class XPathExpr
{
private $prefix;
private $path;
private $element;
private $condition;
private $starPrefix;
/**
* Constructor.
*
* @param string $prefix Prefix for the XPath expression.
* @param string $path Actual path of the expression.
* @param string $element The element in the expression.
* @param string $condition A condition for the expression.
* @param Boolean $starPrefix Indicates whether to use a star prefix.
*/
public function __construct($prefix = null, $path = null, $element = '*', $condition = null, $starPrefix = false)
{
$this->prefix = $prefix;
$this->path = $path;
$this->element = $element;
$this->condition = $condition;
$this->starPrefix = $starPrefix;
}
/**
* Gets the prefix of this XPath expression.
*
* @return string
*/
public function getPrefix()
{
return $this->prefix;
}
/**
* Gets the path of this XPath expression.
*
* @return string
*/
public function getPath()
{
return $this->path;
}
/**
* Answers whether this XPath expression has a star prefix.
*
* @return Boolean
*/
public function hasStarPrefix()
{
return $this->starPrefix;
}
/**
* Gets the element of this XPath expression.
*
* @return string
*/
public function getElement()
{
return $this->element;
}
/**
* Gets the condition of this XPath expression.
*
* @return string
*/
public function getCondition()
{
return $this->condition;
}
/**
* Gets a string representation for this XPath expression.
*
* @return string
*/
public function __toString()
{
$path = '';
if (null !== $this->prefix) {
$path .= $this->prefix;
}
if (null !== $this->path) {
$path .= $this->path;
}
$path .= $this->element;
if ($this->condition) {
$path .= sprintf('[%s]', $this->condition);
}
return $path;
}
/**
* Adds a condition to this XPath expression.
* Any pre-existent condition will be ANDed to it.
*
* @param string $condition The condition to add.
*/
public function addCondition($condition)
{
if ($this->condition) {
$this->condition = sprintf('%s and (%s)', $this->condition, $condition);
} else {
$this->condition = $condition;
}
}
/**
* Adds a prefix to this XPath expression.
* It will be prepended to any pre-existent prefixes.
*
* @param string $prefix The prefix to add.
*/
public function addPrefix($prefix)
{
if ($this->prefix) {
$this->prefix = $prefix.$this->prefix;
} else {
$this->prefix = $prefix;
}
}
/**
* Adds a condition to this XPath expression using the name of the element
* as the desired value.
* This method resets the element to '*'.
*/
public function addNameTest()
{
if ($this->element == '*') {
// We weren't doing a test anyway
return;
}
$this->addCondition(sprintf('name() = %s', XPathExpr::xpathLiteral($this->element)));
$this->element = '*';
}
/**
* Adds a star prefix to this XPath expression.
* This method will prepend a '*' to the path and set the star prefix flag
* to true.
*/
public function addStarPrefix()
{
/*
Adds a /* prefix if there is no prefix. This is when you need
to keep context's constrained to a single parent.
*/
if ($this->path) {
$this->path .= '*/';
} else {
$this->path = '*/';
}
$this->starPrefix = true;
}
/**
* Joins this XPath expression with $other (another XPath expression) using
* $combiner to join them.
*
* @param string $combiner The combiner string.
* @param XPathExpr $other The other XPath expression to combine with
* this one.
*/
public function join($combiner, $other)
{
$prefix = (string) $this;
$prefix .= $combiner;
$path = $other->getPrefix().$other->getPath();
/* We don't need a star prefix if we are joining to this other
prefix; so we'll get rid of it */
if ($other->hasStarPrefix() && '*/' == $path) {
$path = '';
}
$this->prefix = $prefix;
$this->path = $path;
$this->element = $other->getElement();
$this->condition = $other->GetCondition();
}
/**
* Gets an XPath literal for $s.
*
* @param mixed $s Can either be a Node\ElementNode or a string.
*
* @return string
*/
public static function xpathLiteral($s)
{
if ($s instanceof Node\ElementNode) {
// This is probably a symbol that looks like an expression...
$s = $s->formatElement();
} else {
$s = (string) $s;
}
if (false === strpos($s, "'")) {
return sprintf("'%s'", $s);
}
if (false === strpos($s, '"')) {
return sprintf('"%s"', $s);
}
$string = $s;
$parts = array();
while (true) {
if (false !== $pos = strpos($string, "'")) {
$parts[] = sprintf("'%s'", substr($string, 0, $pos));
$parts[] = "\"'\"";
$string = substr($string, $pos + 1);
} else {
$parts[] = "'$string'";
break;
}
}
return sprintf('concat(%s)', implode($parts, ', '));
}
}

View File

@ -1,54 +0,0 @@
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\CssSelector;
/**
* XPathExprOr represents XPath |'d expressions.
*
* Note that unfortunately it isn't the union, it's the sum, so duplicate elements will appear.
*
* This component is a port of the Python lxml library,
* which is copyright Infrae and distributed under the BSD license.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class XPathExprOr extends XPathExpr
{
/**
* Constructor.
*
* @param array $items The items in the expression.
* @param string $prefix Optional prefix for the expression.
*/
public function __construct($items, $prefix = null)
{
$this->items = $items;
$this->prefix = $prefix;
}
/**
* Gets a string representation of this |'d expression.
*
* @return string
*/
public function __toString()
{
$prefix = $this->getPrefix();
$tmp = array();
foreach ($this->items as $i) {
$tmp[] = sprintf('%s%s', $prefix, $i);
}
return implode($tmp, ' | ');
}
}

View File

@ -10,6 +10,10 @@
"name": "Fabien Potencier",
"email": "fabien@symfony.com"
},
{
"name": "Jean-François Simon",
"email": "jeanfrancois.simon@sensiolabs.com"
},
{
"name": "Symfony Community",
"homepage": "http://symfony.com/contributors"