source: trip-planner-front/node_modules/css-tree/lib/lexer/search.js@ bdd6491

Last change on this file since bdd6491 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.6 KB
Line 
1var List = require('../common/List');
2
3function getFirstMatchNode(matchNode) {
4 if ('node' in matchNode) {
5 return matchNode.node;
6 }
7
8 return getFirstMatchNode(matchNode.match[0]);
9}
10
11function getLastMatchNode(matchNode) {
12 if ('node' in matchNode) {
13 return matchNode.node;
14 }
15
16 return getLastMatchNode(matchNode.match[matchNode.match.length - 1]);
17}
18
19function matchFragments(lexer, ast, match, type, name) {
20 function findFragments(matchNode) {
21 if (matchNode.syntax !== null &&
22 matchNode.syntax.type === type &&
23 matchNode.syntax.name === name) {
24 var start = getFirstMatchNode(matchNode);
25 var end = getLastMatchNode(matchNode);
26
27 lexer.syntax.walk(ast, function(node, item, list) {
28 if (node === start) {
29 var nodes = new List();
30
31 do {
32 nodes.appendData(item.data);
33
34 if (item.data === end) {
35 break;
36 }
37
38 item = item.next;
39 } while (item !== null);
40
41 fragments.push({
42 parent: list,
43 nodes: nodes
44 });
45 }
46 });
47 }
48
49 if (Array.isArray(matchNode.match)) {
50 matchNode.match.forEach(findFragments);
51 }
52 }
53
54 var fragments = [];
55
56 if (match.matched !== null) {
57 findFragments(match.matched);
58 }
59
60 return fragments;
61}
62
63module.exports = {
64 matchFragments: matchFragments
65};
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