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  • License BSD-2-Clause

a CSS selector parser

Package Exports

  • css-what

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (css-what) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

css-what Build Status

a CSS selector parser

Example

const CSSwhat = require("css-what")
CSSwhat.parse("foo[bar]:baz")

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

API

CSSwhat.parse(str, options) - Parses str, optionally with the passed options.

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 attributes 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' }

Options:

  • lowerCaseTags: When false, tag names will not be lowercased. Defaults to true.
  • lowerCaseAttributeNames: When false, attribute names will not be lowercased. Defaults to true.
  • xmlMode: When true, xmlMode implies both lowerCaseTags and lowerCaseAttributeNames are set to false.

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

License: BSD-2-Clause

Security contact information

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