blob: 7aad0745ee645a5c49e8b885a8ab5492a788ee38 (
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
|
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-regular-expressions-patterns
es6id: B.1.4
description: Extensions to NonemptyClassRanges production
info: |
The production NonemptyClassRanges :: ClassAtom-ClassAtom ClassRanges
evaluates as follows:
1. Evaluate the first ClassAtom to obtain a CharSet A.
2. Evaluate the second ClassAtom to obtain a CharSet B.
3. Evaluate ClassRanges to obtain a CharSet C.
4. Call CharacterRangeOrUnion(A, B) and let D be the resulting CharSet.
5. Return the union of CharSets D and C.
B.1.4.1.1 Runtime Semantics: CharacterRangeOrUnion Abstract Operation
1. If Unicode is false, then
a. If A does not contain exactly one character or B does not contain
exactly one character, then
i. Let C be the CharSet containing the single character - U+002D
(HYPHEN-MINUS).
ii. Return the union of CharSets A, B and C.
2. Return CharacterRange(A, B).
---*/
var match;
match = /[--\d]+/.exec('.-0123456789-.');
assert.sameValue(match[0], '-0123456789-');
match = /[--\dz]+/.exec('.-0123456789z-.');
assert.sameValue(match[0], '-0123456789z-');
reportCompare(0, 0);
|
