tor-browser

The Tor Browser
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unicode_restricted_identity_escape.js (1729B)

      1 // Copyright (C) 2015 André Bargull. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: B.1.4 is not applied for Unicode RegExp - Identity escape with basic latin characters
      6 info: |
      7    The compatibility extensions defined in B.1.4 Regular Expressions Patterns
      8    are not applied for Unicode RegExps.
      9    Tested extension: "IdentityEscape[U] :: [~U] SourceCharacter but not c"
     10 es6id: 21.1.2
     11 ---*/
     12 
     13 function isSyntaxCharacter(c) {
     14  switch (c) {
     15    case "^":
     16    case "$":
     17    case "\\":
     18    case ".":
     19    case "*":
     20    case "+":
     21    case "?":
     22    case "(":
     23    case ")":
     24    case "[":
     25    case "]":
     26    case "{":
     27    case "}":
     28    case "|":
     29      return true;
     30    default:
     31      return false;
     32  }
     33 }
     34 
     35 function isAlphaDigit(c) {
     36  return ("0" <= c && c <= "9") || ("A" <= c && c <= "Z") || ("a" <= c && c <= "z");
     37 }
     38 
     39 
     40 // IdentityEscape in AtomEscape.
     41 //
     42 // AtomEscape[U] :: CharacterEscape[?U]
     43 // CharacterEscape[U] :: IdentityEscape[?U]
     44 for (var cu = 0x00; cu <= 0x7f; ++cu) {
     45  var s = String.fromCharCode(cu);
     46  if (!isAlphaDigit(s) && !isSyntaxCharacter(s) && s !== "/") {
     47    assert.throws(SyntaxError, function() {
     48      RegExp("\\" + s, "u");
     49    }, "Invalid IdentityEscape in AtomEscape: '\\" + s + "'");
     50  }
     51 }
     52 
     53 
     54 // IdentityEscape in ClassEscape.
     55 //
     56 // ClassEscape[U] :: CharacterEscape[?U]
     57 // CharacterEscape[U] :: IdentityEscape[?U]
     58 for (var cu = 0x00; cu <= 0x7f; ++cu) {
     59  var s = String.fromCharCode(cu);
     60  if (!isAlphaDigit(s) && !isSyntaxCharacter(s) && s !== "/" && s !== "-") {
     61    assert.throws(SyntaxError, function() {
     62      RegExp("[\\" + s + "]", "u");
     63    }, "Invalid IdentityEscape in ClassEscape: '\\" + s + "'");
     64  }
     65 }
     66 
     67 reportCompare(0, 0);