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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
| 'use strict';
|
| // token types (note: value shouldn't intersect with used char codes)
| var WHITESPACE = 1;
| var IDENTIFIER = 2;
| var NUMBER = 3;
| var STRING = 4;
| var COMMENT = 5;
| var PUNCTUATOR = 6;
| var CDO = 7;
| var CDC = 8;
| var ATKEYWORD = 14;
| var FUNCTION = 15;
| var URL = 16;
| var RAW = 17;
|
| var TAB = 9;
| var N = 10;
| var F = 12;
| var R = 13;
| var SPACE = 32;
|
| var TYPE = {
| WhiteSpace: WHITESPACE,
| Identifier: IDENTIFIER,
| Number: NUMBER,
| String: STRING,
| Comment: COMMENT,
| Punctuator: PUNCTUATOR,
| CDO: CDO,
| CDC: CDC,
| AtKeyword: ATKEYWORD,
| Function: FUNCTION,
| Url: URL,
| Raw: RAW,
|
| ExclamationMark: 33, // !
| QuotationMark: 34, // "
| NumberSign: 35, // #
| DollarSign: 36, // $
| PercentSign: 37, // %
| Ampersand: 38, // &
| Apostrophe: 39, // '
| LeftParenthesis: 40, // (
| RightParenthesis: 41, // )
| Asterisk: 42, // *
| PlusSign: 43, // +
| Comma: 44, // ,
| HyphenMinus: 45, // -
| FullStop: 46, // .
| Solidus: 47, // /
| Colon: 58, // :
| Semicolon: 59, // ;
| LessThanSign: 60, // <
| EqualsSign: 61, // =
| GreaterThanSign: 62, // >
| QuestionMark: 63, // ?
| CommercialAt: 64, // @
| LeftSquareBracket: 91, // [
| Backslash: 92, // \
| RightSquareBracket: 93, // ]
| CircumflexAccent: 94, // ^
| LowLine: 95, // _
| GraveAccent: 96, // `
| LeftCurlyBracket: 123, // {
| VerticalLine: 124, // |
| RightCurlyBracket: 125, // }
| Tilde: 126 // ~
| };
|
| var NAME = Object.keys(TYPE).reduce(function(result, key) {
| result[TYPE[key]] = key;
| return result;
| }, {});
|
| // https://drafts.csswg.org/css-syntax/#tokenizer-definitions
| // > non-ASCII code point
| // > A code point with a value equal to or greater than U+0080 <control>
| // > name-start code point
| // > A letter, a non-ASCII code point, or U+005F LOW LINE (_).
| // > name code point
| // > A name-start code point, a digit, or U+002D HYPHEN-MINUS (-)
| // That means only ASCII code points has a special meaning and we a maps for 0..127 codes only
| var SafeUint32Array = typeof Uint32Array !== 'undefined' ? Uint32Array : Array; // fallback on Array when TypedArray is not supported
| var SYMBOL_TYPE = new SafeUint32Array(0x80);
| var PUNCTUATION = new SafeUint32Array(0x80);
| var STOP_URL_RAW = new SafeUint32Array(0x80);
|
| for (var i = 0; i < SYMBOL_TYPE.length; i++) {
| SYMBOL_TYPE[i] = IDENTIFIER;
| }
|
| // fill categories
| [
| TYPE.ExclamationMark, // !
| TYPE.QuotationMark, // "
| TYPE.NumberSign, // #
| TYPE.DollarSign, // $
| TYPE.PercentSign, // %
| TYPE.Ampersand, // &
| TYPE.Apostrophe, // '
| TYPE.LeftParenthesis, // (
| TYPE.RightParenthesis, // )
| TYPE.Asterisk, // *
| TYPE.PlusSign, // +
| TYPE.Comma, // ,
| TYPE.HyphenMinus, // -
| TYPE.FullStop, // .
| TYPE.Solidus, // /
| TYPE.Colon, // :
| TYPE.Semicolon, // ;
| TYPE.LessThanSign, // <
| TYPE.EqualsSign, // =
| TYPE.GreaterThanSign, // >
| TYPE.QuestionMark, // ?
| TYPE.CommercialAt, // @
| TYPE.LeftSquareBracket, // [
| // TYPE.Backslash, // \
| TYPE.RightSquareBracket, // ]
| TYPE.CircumflexAccent, // ^
| // TYPE.LowLine, // _
| TYPE.GraveAccent, // `
| TYPE.LeftCurlyBracket, // {
| TYPE.VerticalLine, // |
| TYPE.RightCurlyBracket, // }
| TYPE.Tilde // ~
| ].forEach(function(key) {
| SYMBOL_TYPE[Number(key)] = PUNCTUATOR;
| PUNCTUATION[Number(key)] = PUNCTUATOR;
| });
|
| for (var i = 48; i <= 57; i++) {
| SYMBOL_TYPE[i] = NUMBER;
| }
|
| SYMBOL_TYPE[SPACE] = WHITESPACE;
| SYMBOL_TYPE[TAB] = WHITESPACE;
| SYMBOL_TYPE[N] = WHITESPACE;
| SYMBOL_TYPE[R] = WHITESPACE;
| SYMBOL_TYPE[F] = WHITESPACE;
|
| SYMBOL_TYPE[TYPE.Apostrophe] = STRING;
| SYMBOL_TYPE[TYPE.QuotationMark] = STRING;
|
| STOP_URL_RAW[SPACE] = 1;
| STOP_URL_RAW[TAB] = 1;
| STOP_URL_RAW[N] = 1;
| STOP_URL_RAW[R] = 1;
| STOP_URL_RAW[F] = 1;
| STOP_URL_RAW[TYPE.Apostrophe] = 1;
| STOP_URL_RAW[TYPE.QuotationMark] = 1;
| STOP_URL_RAW[TYPE.LeftParenthesis] = 1;
| STOP_URL_RAW[TYPE.RightParenthesis] = 1;
|
| // whitespace is punctuation ...
| PUNCTUATION[SPACE] = PUNCTUATOR;
| PUNCTUATION[TAB] = PUNCTUATOR;
| PUNCTUATION[N] = PUNCTUATOR;
| PUNCTUATION[R] = PUNCTUATOR;
| PUNCTUATION[F] = PUNCTUATOR;
| // ... hyper minus is not
| PUNCTUATION[TYPE.HyphenMinus] = 0;
|
| module.exports = {
| TYPE: TYPE,
| NAME: NAME,
|
| SYMBOL_TYPE: SYMBOL_TYPE,
| PUNCTUATION: PUNCTUATION,
| STOP_URL_RAW: STOP_URL_RAW
| };
|
|
