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// 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-');
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