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fb55/css-what

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css-what

A CSS selector parser.

Example

import * as CSSwhat from "css-what";

CSSwhat.parse("foo[bar]:baz")

~> [
[
{ type: "tag", name: "foo" },
{
type: "attribute",
name: "bar",
action: "exists",
value: "",
ignoreCase: null
},
{ type: "pseudo", name: "baz", data: null }
]
]

API

CSSwhat.parse(selector) - Parses selector.

The function returns a two-dimensional array. The first array represents selectors separated by commas (eg. sub1, sub2), the second contains the relevant tokens for that selector. Possible token types are:

name properties example output
tag name div { type: 'tag', name: 'div' }
universal - * { type: 'universal' }
pseudo name, data :name(data) { type: 'pseudo', name: 'name', data: 'data' }
pseudo name, data :name { type: 'pseudo', name: 'name', data: null }
pseudo-element name ::name { type: 'pseudo-element', name: 'name' }
attribute name, action, value, ignoreCase [attr] { type: 'attribute', name: 'attr', action: 'exists', value: '', ignoreCase: false }
attribute name, action, value, ignoreCase [attr=val] { type: 'attribute', name: 'attr', action: 'equals', value: 'val', ignoreCase: false }
attribute name, action, value, ignoreCase [attr^=val] { type: 'attribute', name: 'attr', action: 'start', value: 'val', ignoreCase: false }
attribute name, action, value, ignoreCase [attr$=val] { type: 'attribute', name: 'attr', action: 'end', value: 'val', ignoreCase: false }
child - > { type: 'child' }
parent - < { type: 'parent' }
sibling - ~ { type: 'sibling' }
adjacent - + { type: 'adjacent' }
descendant - { type: 'descendant' }
column-combinator - || { type: 'column-combinator' }

CSSwhat.stringify(selector) - Turns selector back into a string.


License: BSD-2-Clause

Security contact information

To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure.

css-what for enterprise

Available as part of the Tidelift Subscription

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a CSS selector parser

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