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a CSS selector parser
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 }
]
]
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
To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure.
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