tor-browser

The Tor Browser
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u-surrogate-pairs-atom-escape-decimal.js (1081B)

      1 // Copyright (C) 2016 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-atomescape
      5 es6id: 21.2.2.9
      6 description: >
      7  Support for surrogate pairs within patterns match by the DecimalEscape
      8  AtomEscape
      9 info: |
     10  The production AtomEscape :: DecimalEscape evaluates as follows:
     11 
     12  [...]
     13  3. Return an internal Matcher closure that takes two arguments, a State x and
     14     a Continuation c, and performs the following steps:
     15     [...]
     16     h. If there exists an integer i between 0 (inclusive) and len (exclusive)
     17        such that Canonicalize(s[i]) is not the same character value as
     18        Canonicalize(Input[e+i]), return failure.
     19 
     20  Runtime Semantics: CharacterSetMatcher Abstract Operation
     21 
     22  1. Return an internal Matcher closure that takes two arguments, a State x and
     23     a Continuation c, and performs the following steps when evaluated:
     24     [...]
     25     d. Let cc be Canonicalize(ch).
     26     [...]
     27 ---*/
     28 
     29 assert.sameValue(/(.+).*\1/u.test('\ud800\udc00\ud800'), false);
     30 
     31 reportCompare(0, 0);