class CssSelector

CssSelector is the main entry point of the component and can convert CSS selectors to XPath expressions.

$xpath = CssSelector::toXpath('h1.foo');

This component is a port of the Python cssselect library, which is copyright Ian Bicking, see https://github.com/SimonSapin/cssselect.

Copyright (c) 2007-2012 Ian Bicking and contributors. See AUTHORS for more details.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

  3. Neither the name of Ian Bicking nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IAN BICKING OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Methods

static string
toXPath(mixed $cssExpr, string $prefix = 'descendant-or-self::')

Translates a CSS expression to its XPath equivalent.

static 
enableHtmlExtension()

Enables the HTML extension.

static 
disableHtmlExtension()

Disables the HTML extension.

Details

at line line 79
static string toXPath(mixed $cssExpr, string $prefix = 'descendant-or-self::')

Translates a CSS expression to its XPath equivalent.

Optionally, a prefix can be added to the resulting XPath expression with the $prefix parameter.

Parameters

mixed $cssExpr The CSS expression
string $prefix An optional prefix for the XPath expression

Return Value

string

at line line 100
static enableHtmlExtension()

Enables the HTML extension.

at line line 108
static disableHtmlExtension()

Disables the HTML extension.