blob: 3e984a4bbc29983535c0be07700941373d817d94 (
plain)
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
|
'use strict';
const fill = require('fill-range');
const utils = require('./utils');
const compile = (ast, options = {}) => {
let walk = (node, parent = {}) => {
let invalidBlock = utils.isInvalidBrace(parent);
let invalidNode = node.invalid === true && options.escapeInvalid === true;
let invalid = invalidBlock === true || invalidNode === true;
let prefix = options.escapeInvalid === true ? '\\' : '';
let output = '';
if (node.isOpen === true) {
return prefix + node.value;
}
if (node.isClose === true) {
return prefix + node.value;
}
if (node.type === 'open') {
return invalid ? (prefix + node.value) : '(';
}
if (node.type === 'close') {
return invalid ? (prefix + node.value) : ')';
}
if (node.type === 'comma') {
return node.prev.type === 'comma' ? '' : (invalid ? node.value : '|');
}
if (node.value) {
return node.value;
}
if (node.nodes && node.ranges > 0) {
let args = utils.reduce(node.nodes);
let range = fill(...args, { ...options, wrap: false, toRegex: true });
if (range.length !== 0) {
return args.length > 1 && range.length > 1 ? `(${range})` : range;
}
}
if (node.nodes) {
for (let child of node.nodes) {
output += walk(child, node);
}
}
return output;
};
return walk(ast);
};
module.exports = compile;
|
