tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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string-replace-missing.js (922B)

      1 // Copyright 2017 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: If the group doesn't exist, replace with the empty string
      6 esid: sec-getsubstitution
      7 features: [regexp-named-groups]
      8 ---*/
      9 
     10 let source = "(?<fst>.)(?<snd>.)|(?<thd>x)";
     11 for (let flags of ["", "u"]) {
     12  let re = new RegExp(source, flags);
     13  assert.sameValue("cd", "abcd".replace(re, "$<42$1>"));
     14  assert.sameValue("cd", "abcd".replace(re, "$<fth>"));
     15  assert.sameValue("cd", "abcd".replace(re, "$<$1>"));
     16  assert.sameValue("cd", "abcd".replace(re, "$<>"));
     17 }
     18 for (let flags of ["g", "gu"]) {
     19  let re = new RegExp(source, flags);
     20  assert.sameValue("", "abcd".replace(re, "$<42$1>"));
     21  assert.sameValue("", "abcd".replace(re, "$<fth>"));
     22  assert.sameValue("", "abcd".replace(re, "$<$1>"));
     23  assert.sameValue("", "abcd".replace(re, "$<>"));
     24 }
     25 
     26 reportCompare(0, 0);