source: trip-planner-front/node_modules/extglob/lib/parsers.js

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

initial commit

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File size: 3.1 KB
Line 
1'use strict';
2
3var brackets = require('expand-brackets');
4var define = require('define-property');
5var utils = require('./utils');
6
7/**
8 * Characters to use in text regex (we want to "not" match
9 * characters that are matched by other parsers)
10 */
11
12var TEXT_REGEX = '([!@*?+]?\\(|\\)|[*?.+\\\\]|\\[:?(?=.*\\])|:?\\])+';
13var not = utils.createRegex(TEXT_REGEX);
14
15/**
16 * Extglob parsers
17 */
18
19function parsers(extglob) {
20 extglob.state = extglob.state || {};
21
22 /**
23 * Use `expand-brackets` parsers
24 */
25
26 extglob.use(brackets.parsers);
27 extglob.parser.sets.paren = extglob.parser.sets.paren || [];
28 extglob.parser
29
30 /**
31 * Extglob open: "*("
32 */
33
34 .capture('paren.open', function() {
35 var parsed = this.parsed;
36 var pos = this.position();
37 var m = this.match(/^([!@*?+])?\(/);
38 if (!m) return;
39
40 var prev = this.prev();
41 var prefix = m[1];
42 var val = m[0];
43
44 var open = pos({
45 type: 'paren.open',
46 parsed: parsed,
47 val: val
48 });
49
50 var node = pos({
51 type: 'paren',
52 prefix: prefix,
53 nodes: [open]
54 });
55
56 // if nested negation extglobs, just cancel them out to simplify
57 if (prefix === '!' && prev.type === 'paren' && prev.prefix === '!') {
58 prev.prefix = '@';
59 node.prefix = '@';
60 }
61
62 define(node, 'rest', this.input);
63 define(node, 'parsed', parsed);
64 define(node, 'parent', prev);
65 define(open, 'parent', node);
66
67 this.push('paren', node);
68 prev.nodes.push(node);
69 })
70
71 /**
72 * Extglob close: ")"
73 */
74
75 .capture('paren.close', function() {
76 var parsed = this.parsed;
77 var pos = this.position();
78 var m = this.match(/^\)/);
79 if (!m) return;
80
81 var parent = this.pop('paren');
82 var node = pos({
83 type: 'paren.close',
84 rest: this.input,
85 parsed: parsed,
86 val: m[0]
87 });
88
89 if (!this.isType(parent, 'paren')) {
90 if (this.options.strict) {
91 throw new Error('missing opening paren: "("');
92 }
93 node.escaped = true;
94 return node;
95 }
96
97 node.prefix = parent.prefix;
98 parent.nodes.push(node);
99 define(node, 'parent', parent);
100 })
101
102 /**
103 * Escape: "\\."
104 */
105
106 .capture('escape', function() {
107 var pos = this.position();
108 var m = this.match(/^\\(.)/);
109 if (!m) return;
110
111 return pos({
112 type: 'escape',
113 val: m[0],
114 ch: m[1]
115 });
116 })
117
118 /**
119 * Question marks: "?"
120 */
121
122 .capture('qmark', function() {
123 var parsed = this.parsed;
124 var pos = this.position();
125 var m = this.match(/^\?+(?!\()/);
126 if (!m) return;
127 extglob.state.metachar = true;
128 return pos({
129 type: 'qmark',
130 rest: this.input,
131 parsed: parsed,
132 val: m[0]
133 });
134 })
135
136 /**
137 * Character parsers
138 */
139
140 .capture('star', /^\*(?!\()/)
141 .capture('plus', /^\+(?!\()/)
142 .capture('dot', /^\./)
143 .capture('text', not);
144};
145
146/**
147 * Expose text regex string
148 */
149
150module.exports.TEXT_REGEX = TEXT_REGEX;
151
152/**
153 * Extglob parsers
154 */
155
156module.exports = parsers;
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