-
Notifications
You must be signed in to change notification settings - Fork 93
/
types.ts
137 lines (114 loc) · 2.51 KB
/
types.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/*!
* Copyright (c) 2017-present Cliqz GmbH. All rights reserved.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
const tokenTypes = [
'attribute',
'id',
'class',
'comma',
'combinator',
'pseudo-element',
'pseudo-class',
'type',
] as const;
export type TokenType = (typeof tokenTypes)[number];
export type Base = {
length: number;
content: string;
pos: number[];
};
export type Type = Base & {
type: 'type';
name?: string;
namespace?: string;
};
export type PseudoClass = Base & {
type: 'pseudo-class';
name: string;
argument: string | undefined;
subtree: AST | undefined;
};
export type PseudoElement = Base & {
type: 'pseudo-element';
name: string;
};
export type Combinator = Base & {
type: 'combinator';
};
export type Comma = Base & {
type: 'comma';
};
export type Class = Base & {
type: 'class';
name: string;
};
export type Id = Base & {
type: 'id';
name: string;
};
export type Attribute = Base & {
type: 'attribute';
namespace?: string;
caseSensitive?: string;
name: string;
operator?: string;
value?: string;
};
export type Atom =
| Attribute
| Id
| Class
| Comma
| Combinator
| PseudoClass
| PseudoElement
| Type;
export type Atoms = Atom[];
export type AtomOrString = Atom | string;
export type AtomsOrStrings = AtomOrString[];
export type Strings = { str: string; start: number }[];
// Complex selectors with combinators (e.g. ~, >, +)
export interface Complex {
type: 'complex';
combinator: ' ' | '+' | '~' | '>';
right: AST;
left: AST | undefined;
}
// Multiple selectors together
// i.e. selector1selector2 (should match both at the same time)
export interface Compound {
type: 'compound';
compound: AST[];
}
// Comma-separated list of selectors
// i.e. selector1, selector2, etc.
export interface List {
type: 'list';
list: AST[];
}
export type AST =
| Attribute
| Id
| Class
| PseudoClass
| PseudoElement
| Type
| Complex
| Compound
| List;
export interface ParserOptions {
recursive?: boolean;
list?: boolean;
}
export function isAtoms(tokens: AtomsOrStrings): tokens is Atoms {
return tokens.every((token) => typeof token !== 'string');
}
export function isAST(
tokens: Atoms,
): tokens is (Attribute | Id | Class | PseudoClass | PseudoElement | Type)[] {
return tokens.every((token) => token.type !== 'comma' && token.type !== 'combinator');
}