Translator
class Translator implements TranslatorInterface
XPath expression translator interface.
This component is a port of the Python cssselect library, which is copyright Ian Bicking, see https://github.com/SimonSapin/cssselect.
Methods
| __construct(ParserInterface $parser = null) | ||
| static string | getXpathLiteral(string $element) | |
| string | cssToXPath(string $cssExpr, string $prefix = 'descendant-or-self::') Translates a CSS selector to an XPath expression. | |
| string | selectorToXPath(SelectorNode $selector, string $prefix = 'descendant-or-self::') Translates a parsed selector node to an XPath expression. | |
| $this | registerExtension(ExtensionInterface $extension) Registers an extension. | |
| ExtensionInterface | getExtension(string $name) | |
| $this | registerParserShortcut(ParserInterface $shortcut) Registers a shortcut parser. | |
| XPathExpr | nodeToXPath(NodeInterface $node) | |
| XPathExpr | addCombination(string $combiner, NodeInterface $xpath, NodeInterface $combinedXpath) | |
| XPathExpr | addFunction(XPathExpr $xpath, FunctionNode $function) | |
| XPathExpr | addPseudoClass(XPathExpr $xpath, string $pseudoClass) | |
| XPathExpr | addAttributeMatching(XPathExpr $xpath, string $operator, string $attribute, string $value) |
Details
__construct(ParserInterface $parser = null)
Parameters
| ParserInterface | $parser |
static string getXpathLiteral(string $element)
Parameters
| string | $element |
Return Value
| string |
string cssToXPath(string $cssExpr, string $prefix = 'descendant-or-self::')
Translates a CSS selector to an XPath expression.
Parameters
| string | $cssExpr | |
| string | $prefix |
Return Value
| string |
string selectorToXPath(SelectorNode $selector, string $prefix = 'descendant-or-self::')
Translates a parsed selector node to an XPath expression.
Parameters
| SelectorNode | $selector | |
| string | $prefix |
Return Value
| string |
$this registerExtension(ExtensionInterface $extension)
Registers an extension.
Parameters
| ExtensionInterface | $extension |
Return Value
| $this |
ExtensionInterface getExtension(string $name)
Parameters
| string | $name |
Return Value
| ExtensionInterface |
Exceptions
| ExpressionErrorException |
$this registerParserShortcut(ParserInterface $shortcut)
Registers a shortcut parser.
Parameters
| ParserInterface | $shortcut |
Return Value
| $this |
XPathExpr nodeToXPath(NodeInterface $node)
Parameters
| NodeInterface | $node |
Return Value
| XPathExpr |
Exceptions
| ExpressionErrorException |
XPathExpr addCombination(string $combiner, NodeInterface $xpath, NodeInterface $combinedXpath)
Parameters
| string | $combiner | |
| NodeInterface | $xpath | |
| NodeInterface | $combinedXpath |
Return Value
| XPathExpr |
Exceptions
| ExpressionErrorException |
XPathExpr addFunction(XPathExpr $xpath, FunctionNode $function)
Parameters
| XPathExpr | $xpath | |
| FunctionNode | $function |
Return Value
| XPathExpr |
Exceptions
| ExpressionErrorException |
XPathExpr addPseudoClass(XPathExpr $xpath, string $pseudoClass)
Parameters
| XPathExpr | $xpath | |
| string | $pseudoClass |
Return Value
| XPathExpr |
Exceptions
| ExpressionErrorException |
XPathExpr addAttributeMatching(XPathExpr $xpath, string $operator, string $attribute, string $value)
Parameters
| XPathExpr | $xpath | |
| string | $operator | |
| string | $attribute | |
| string | $value |
Return Value
| XPathExpr |
Exceptions
| ExpressionErrorException |
© 2004–2017 Fabien Potencier
Licensed under the MIT License.
http://api.symfony.com/3.3/Symfony/Component/CssSelector/XPath/Translator.html