source: trip-planner-front/node_modules/postcss-selector-parser/dist/tokenize.js@ b738035

Last change on this file since b738035 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit
  • Property mode set to 100644
File size: 8.1 KB
Line 
1"use strict";
2
3exports.__esModule = true;
4exports["default"] = tokenize;
5exports.FIELDS = void 0;
6
7var t = _interopRequireWildcard(require("./tokenTypes"));
8
9var _unescapable, _wordDelimiters;
10
11function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
12
13function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
14
15var unescapable = (_unescapable = {}, _unescapable[t.tab] = true, _unescapable[t.newline] = true, _unescapable[t.cr] = true, _unescapable[t.feed] = true, _unescapable);
16var wordDelimiters = (_wordDelimiters = {}, _wordDelimiters[t.space] = true, _wordDelimiters[t.tab] = true, _wordDelimiters[t.newline] = true, _wordDelimiters[t.cr] = true, _wordDelimiters[t.feed] = true, _wordDelimiters[t.ampersand] = true, _wordDelimiters[t.asterisk] = true, _wordDelimiters[t.bang] = true, _wordDelimiters[t.comma] = true, _wordDelimiters[t.colon] = true, _wordDelimiters[t.semicolon] = true, _wordDelimiters[t.openParenthesis] = true, _wordDelimiters[t.closeParenthesis] = true, _wordDelimiters[t.openSquare] = true, _wordDelimiters[t.closeSquare] = true, _wordDelimiters[t.singleQuote] = true, _wordDelimiters[t.doubleQuote] = true, _wordDelimiters[t.plus] = true, _wordDelimiters[t.pipe] = true, _wordDelimiters[t.tilde] = true, _wordDelimiters[t.greaterThan] = true, _wordDelimiters[t.equals] = true, _wordDelimiters[t.dollar] = true, _wordDelimiters[t.caret] = true, _wordDelimiters[t.slash] = true, _wordDelimiters);
17var hex = {};
18var hexChars = "0123456789abcdefABCDEF";
19
20for (var i = 0; i < hexChars.length; i++) {
21 hex[hexChars.charCodeAt(i)] = true;
22}
23/**
24 * Returns the last index of the bar css word
25 * @param {string} css The string in which the word begins
26 * @param {number} start The index into the string where word's first letter occurs
27 */
28
29
30function consumeWord(css, start) {
31 var next = start;
32 var code;
33
34 do {
35 code = css.charCodeAt(next);
36
37 if (wordDelimiters[code]) {
38 return next - 1;
39 } else if (code === t.backslash) {
40 next = consumeEscape(css, next) + 1;
41 } else {
42 // All other characters are part of the word
43 next++;
44 }
45 } while (next < css.length);
46
47 return next - 1;
48}
49/**
50 * Returns the last index of the escape sequence
51 * @param {string} css The string in which the sequence begins
52 * @param {number} start The index into the string where escape character (`\`) occurs.
53 */
54
55
56function consumeEscape(css, start) {
57 var next = start;
58 var code = css.charCodeAt(next + 1);
59
60 if (unescapable[code]) {// just consume the escape char
61 } else if (hex[code]) {
62 var hexDigits = 0; // consume up to 6 hex chars
63
64 do {
65 next++;
66 hexDigits++;
67 code = css.charCodeAt(next + 1);
68 } while (hex[code] && hexDigits < 6); // if fewer than 6 hex chars, a trailing space ends the escape
69
70
71 if (hexDigits < 6 && code === t.space) {
72 next++;
73 }
74 } else {
75 // the next char is part of the current word
76 next++;
77 }
78
79 return next;
80}
81
82var FIELDS = {
83 TYPE: 0,
84 START_LINE: 1,
85 START_COL: 2,
86 END_LINE: 3,
87 END_COL: 4,
88 START_POS: 5,
89 END_POS: 6
90};
91exports.FIELDS = FIELDS;
92
93function tokenize(input) {
94 var tokens = [];
95 var css = input.css.valueOf();
96 var _css = css,
97 length = _css.length;
98 var offset = -1;
99 var line = 1;
100 var start = 0;
101 var end = 0;
102 var code, content, endColumn, endLine, escaped, escapePos, last, lines, next, nextLine, nextOffset, quote, tokenType;
103
104 function unclosed(what, fix) {
105 if (input.safe) {
106 // fyi: this is never set to true.
107 css += fix;
108 next = css.length - 1;
109 } else {
110 throw input.error('Unclosed ' + what, line, start - offset, start);
111 }
112 }
113
114 while (start < length) {
115 code = css.charCodeAt(start);
116
117 if (code === t.newline) {
118 offset = start;
119 line += 1;
120 }
121
122 switch (code) {
123 case t.space:
124 case t.tab:
125 case t.newline:
126 case t.cr:
127 case t.feed:
128 next = start;
129
130 do {
131 next += 1;
132 code = css.charCodeAt(next);
133
134 if (code === t.newline) {
135 offset = next;
136 line += 1;
137 }
138 } while (code === t.space || code === t.newline || code === t.tab || code === t.cr || code === t.feed);
139
140 tokenType = t.space;
141 endLine = line;
142 endColumn = next - offset - 1;
143 end = next;
144 break;
145
146 case t.plus:
147 case t.greaterThan:
148 case t.tilde:
149 case t.pipe:
150 next = start;
151
152 do {
153 next += 1;
154 code = css.charCodeAt(next);
155 } while (code === t.plus || code === t.greaterThan || code === t.tilde || code === t.pipe);
156
157 tokenType = t.combinator;
158 endLine = line;
159 endColumn = start - offset;
160 end = next;
161 break;
162 // Consume these characters as single tokens.
163
164 case t.asterisk:
165 case t.ampersand:
166 case t.bang:
167 case t.comma:
168 case t.equals:
169 case t.dollar:
170 case t.caret:
171 case t.openSquare:
172 case t.closeSquare:
173 case t.colon:
174 case t.semicolon:
175 case t.openParenthesis:
176 case t.closeParenthesis:
177 next = start;
178 tokenType = code;
179 endLine = line;
180 endColumn = start - offset;
181 end = next + 1;
182 break;
183
184 case t.singleQuote:
185 case t.doubleQuote:
186 quote = code === t.singleQuote ? "'" : '"';
187 next = start;
188
189 do {
190 escaped = false;
191 next = css.indexOf(quote, next + 1);
192
193 if (next === -1) {
194 unclosed('quote', quote);
195 }
196
197 escapePos = next;
198
199 while (css.charCodeAt(escapePos - 1) === t.backslash) {
200 escapePos -= 1;
201 escaped = !escaped;
202 }
203 } while (escaped);
204
205 tokenType = t.str;
206 endLine = line;
207 endColumn = start - offset;
208 end = next + 1;
209 break;
210
211 default:
212 if (code === t.slash && css.charCodeAt(start + 1) === t.asterisk) {
213 next = css.indexOf('*/', start + 2) + 1;
214
215 if (next === 0) {
216 unclosed('comment', '*/');
217 }
218
219 content = css.slice(start, next + 1);
220 lines = content.split('\n');
221 last = lines.length - 1;
222
223 if (last > 0) {
224 nextLine = line + last;
225 nextOffset = next - lines[last].length;
226 } else {
227 nextLine = line;
228 nextOffset = offset;
229 }
230
231 tokenType = t.comment;
232 line = nextLine;
233 endLine = nextLine;
234 endColumn = next - nextOffset;
235 } else if (code === t.slash) {
236 next = start;
237 tokenType = code;
238 endLine = line;
239 endColumn = start - offset;
240 end = next + 1;
241 } else {
242 next = consumeWord(css, start);
243 tokenType = t.word;
244 endLine = line;
245 endColumn = next - offset;
246 }
247
248 end = next + 1;
249 break;
250 } // Ensure that the token structure remains consistent
251
252
253 tokens.push([tokenType, // [0] Token type
254 line, // [1] Starting line
255 start - offset, // [2] Starting column
256 endLine, // [3] Ending line
257 endColumn, // [4] Ending column
258 start, // [5] Start position / Source index
259 end // [6] End position
260 ]); // Reset offset for the next token
261
262 if (nextOffset) {
263 offset = nextOffset;
264 nextOffset = null;
265 }
266
267 start = end;
268 }
269
270 return tokens;
271}
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