source: trip-planner-front/node_modules/braces/lib/compile.js@ 76712b2

Last change on this file since 76712b2 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.4 KB
Line 
1'use strict';
2
3const fill = require('fill-range');
4const utils = require('./utils');
5
6const compile = (ast, options = {}) => {
7 let walk = (node, parent = {}) => {
8 let invalidBlock = utils.isInvalidBrace(parent);
9 let invalidNode = node.invalid === true && options.escapeInvalid === true;
10 let invalid = invalidBlock === true || invalidNode === true;
11 let prefix = options.escapeInvalid === true ? '\\' : '';
12 let output = '';
13
14 if (node.isOpen === true) {
15 return prefix + node.value;
16 }
17 if (node.isClose === true) {
18 return prefix + node.value;
19 }
20
21 if (node.type === 'open') {
22 return invalid ? (prefix + node.value) : '(';
23 }
24
25 if (node.type === 'close') {
26 return invalid ? (prefix + node.value) : ')';
27 }
28
29 if (node.type === 'comma') {
30 return node.prev.type === 'comma' ? '' : (invalid ? node.value : '|');
31 }
32
33 if (node.value) {
34 return node.value;
35 }
36
37 if (node.nodes && node.ranges > 0) {
38 let args = utils.reduce(node.nodes);
39 let range = fill(...args, { ...options, wrap: false, toRegex: true });
40
41 if (range.length !== 0) {
42 return args.length > 1 && range.length > 1 ? `(${range})` : range;
43 }
44 }
45
46 if (node.nodes) {
47 for (let child of node.nodes) {
48 output += walk(child, node);
49 }
50 }
51 return output;
52 };
53
54 return walk(ast);
55};
56
57module.exports = compile;
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