mirror of https://github.com/tc39/test262.git
30 lines
1010 B
JavaScript
30 lines
1010 B
JavaScript
// Copyright 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: Named groups may be accessed in their replacement string by number
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esid: sec-getsubstitution
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features: [regexp-named-groups]
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info: |
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Runtime Semantics: GetSubstitution( matched, str, position, captures, namedCaptures, replacement )
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Table: Replacement Text Symbol Substitutions
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Unicode Characters: $n
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Replacement text:
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The nth element of captures, where n is a single digit in the range 1 to 9. If
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n≤m and the nth element of captures is undefined, use the empty String instead.
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If n>m, the result is implementation-defined.
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---*/
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let source = "(?<fst>.)(?<snd>.)|(?<thd>x)";
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for (let flags of ["g", "gu"]) {
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let re = new RegExp(source, flags);
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assert.sameValue("badc", "abcd".replace(re, "$2$1"));
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}
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for (let flags of ["", "u"]) {
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let re = new RegExp(source, flags);
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assert.sameValue("bacd", "abcd".replace(re, "$2$1"));
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}
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