mirror of
https://github.com/SSCLI/sscli_20021101
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yallie
278 lines
8.3 KiB
JavaScript
278 lines
8.3 KiB
JavaScript
//# ==++==
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//#
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//#
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//# Copyright (c) 2002 Microsoft Corporation. All rights reserved.
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//#
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//# The use and distribution terms for this software are contained in the file
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//# named license.txt, which can be found in the root of this distribution.
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//# By using this software in any fashion, you are agreeing to be bound by the
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//# terms of this license.
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//#
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//# You must not remove this notice, or any other, from this software.
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//#
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//#
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//# ==--==
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//####################################################################################
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@cc_on
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import System;
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var NULL_DISPATCH = null;
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var apGlobalObj;
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var apPlatform;
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var lFailCount;
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var iTestID = 91749;
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//regex014.js - Zero-Width look ahead assertions
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function verify(sRes, sExp, sMsg, sBug) {
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if (sRes != sExp)
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apLogFailInfo (sMsg, sExp, sRes, sBug);
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}
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function regex014() {
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@if(@_fast)
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var i, a, sExp, sAct, re, ms;
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@end
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apInitTest ("RegEx014 - Zero-width look ahead patterns");
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//----------------------------------------------------------------------
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apInitScenario ("1. Positive zero-width look ahead patterns");
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sExp = "abc"
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re = /\w+(?=z)/;
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ms = re.exec("abcz");
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sAct = ms[0]
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verify (sAct, sExp, "pos zero-width look ahead 1", "");
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sExp = "12"
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re = /(?=1)12/;
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ms = re.exec("12");
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sAct = ms[0];
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verify (sAct, sExp, "pos zero-width look ahead 2", "");
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sExp = "\001";
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re = new RegExp("\\1(?=ecma3)", "i");
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ms = re.exec("\001ECMA3");
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sAct = ms[0];
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verify (sAct, sExp, "pos zero-width look ahead 3", "VS7 #110896");
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sExp = "ECMA3ECMA3";
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//build an expression with 10 subexpressions to confuse the engine
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re = /(((((((((((?=ECMA)ECMA(?=3)3))))))))))\10/m;
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ms = re.exec("ECMA3ECMA3\n");
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verify (ms[0], sExp, "pos zero-width look ahead 4", "");
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verify (ms[0].length, 10, "pos zero-width look ahead 5", "");
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verify (ms.index, 0, "pos zero-width look ahead 6", "");
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sExp = "ECMA3"
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re = /(((((((((((?=ECMA)ECMA(?=3)3))))))))))\10/m;
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ms = re.exec("ECMA3ECMA3\n");
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//just checking the submatches
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for (i = 1; i<ms.length; i++) {
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verify (ms[i], sExp, "pos zero-width look ahead 7; i= " + i, "");
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}
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//-----------------------------------------------------------------------
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apInitScenario ("2. deeply nested zero width look ahead");
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sExp = ("NSCP");
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//build an expression with 10 subexpressions to confuse the engine
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re = new RegExp("((((((((((\\w{2,}))))))))))\\10\012\\w", "m");
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verify ("IEIE\nM".replace(re, "NSCP"), sExp, "deeply nested 1", "");
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sExp = ("NSCPIEIE");
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re = /(((?=IE)))\1/
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verify ("IEIE".replace(re, "NSCP"), sExp, "deeply nested with no consumption + backrefence", "");
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//-----------------------------------------------------------------------
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apInitScenario ("3. Character classes and pos zero-width look ahead");
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sExp = true;
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re = new RegExp("((?=[A-z]*)1)");
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sAct = re.test(1)
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verify (sAct, sExp, "char class 1", "");
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sExp = "1";
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re = /((1(?=[A-z]*)))/;
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ms = re.exec("1")
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verify (ms[0], sExp, "char class 2", "");
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sExp = true;
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re = new RegExp("((?=[A-z0-9]+)1)");
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sAct = re.test("yaDIdAdA34BiBOP" + 1)
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verify (sAct, sExp, "char class 3", "");
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sExp = "1";
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re = /((1(?=[A-z]+)))/;
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ms = re.exec("1xyz")
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verify (ms[0], sExp, "char class 4", "");
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sExp = new Array(65 + "\1");
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re = /(?=[\w0-5]+?)65\1/;
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verify ("565\1".match(re), sExp.join(), "char class 5", "");
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//-----------------------------------------------------------------------
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apInitScenario ("4. pos assertion(zero-width look ahead) after a greedy algorithm");
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sExp = true
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re = new RegExp("((a+)(?=a)a)");
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verify (re.test("aaa"), sExp, "assertion after greedy 1", "");
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sExp = "AAA"
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re = new RegExp("((a+)(?=a)a)", "i");
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ms = re.exec("AAA");
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verify (ms[0], sExp, "assertion after greedy 2", "bug ");
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verify (ms[1], sExp, "assertion after greedy 3", "");
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sExp = "AA"
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verify (ms[2], sExp, "assertion after greedy 4", "");
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sExp = "Testing_"
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re = new RegExp("([a-z_]+)(?=\\d)", "img");
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ms = re.exec("Testing_1\nTesting_2")
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verify (ms[0], sExp, "assertion after greedy 5", "");
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//------------------------------------------------------------------------
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apInitScenario("5. pos assertion(zero-width look ahead) with {m,n}");
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sExp = "Xabcccc"
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re = /(?=abc{1,})/m;
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verify ("abcccc".replace(re, "X"), sExp, "zero-width look ahead {m,n} constructs 1", "");
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sExp = "Xabcccc"
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re = new RegExp("(?=abc{1,})(?=a)");
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verify ("abcccc".replace(re, "X"), sExp, "zero-width look ahead {m,n} constructs 2", "");
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sExp = true
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re = /(?=abc{1,})(?=a)(?=\w)/;
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verify (re.test ("abca"), sExp, "zero-width look ahead {m,n} constructs 3", "");
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//-------------------------------------------------------------------------
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apInitScenario("6. Placement in pattern: by itself, w/ backrefence, in the middle w/ optional ?, and nested");
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sExp = "";
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re = /(?=\w)/;
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ms = "a".match(re); //assertion, without a capture
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verify (ms, sExp, "assertion without capture" ,"");
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sExp = new Array("", "");
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re = /((?=\w))/;
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ms = "a".match(re); //assertion, without a capture
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verify (ms.join(), sExp.join(), "assertion with a capture" ,"")
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sExp = false;
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re = /(?=\w)\1/; //this will look for a word character assertion, then octal 1, whic hcan never occur since the assertion doesnt eat space
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ms = re.test("b");
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verify (ms, sExp, "assertion followed by impossible octal 1", "VS");
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sExp = new Array("", "");
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re = /((?=\w)\1)/;
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a = "x".match(re);
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for (i = 0; i < a.length; i++);
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{
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if (a[i] != sExp[i])
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apLogFailInfo ("Check value of array", sExp[i], a[i], "");
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}
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sExp = ""
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re = new RegExp("test(?=(ing)?)(ing)?", "g");
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verify ("testingtest".replace(re, ""), sExp, "placement 4", "")
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sExp = "nested zero-width look aheadsefg"
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re = /a?b+c{2,4}(?=d(?=e(?=f)(?=\w)))d/;
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verify ("bccdefg".replace(re, "nested zero-width look aheads"), sExp, "placement 5", "");
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//----------------------------------------------------------------------------
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apInitScenario ("7. neg zero-width look ahead");
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sExp = true
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re = /(?!foo)bar/; //this pattern specifies to match that the next 3 characters are not foo, then search for bar
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verify (re.test("foobar"), sExp, "neg zero-width look ahead 1", "");
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sExp = false
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re = /(?!foo)foo/; //this pattern specifies to match that the next 3 characters are not foo, then search for bar
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verify (re.test("foobar"), sExp, "neg zero-width look ahead 2", "");
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sExp = "foobar"
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re = new RegExp("foo(?!bar)");
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verify ("foobar".replace(re, "XXX"), sExp, "neg zero-width look ahead 3", "");
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sExp = 2; //lastIndex should point to the second b in abba.
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re = /(?!a)b/g;
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ms = re.exec("abba");
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verify (ms.lastIndex, sExp, "neg zero-width look ahead 4", "");
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sExp = 3;
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ms = re.exec("abba");
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verify (ms.lastIndex, sExp, "neg zero-width look ahead 5", "");
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sExp = false
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re = /a(?!\w?)/; //\w? always suceeds, so the neg pattern always fails.
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verify (re.test("a"), sExp, "neg zero-width look ahead 6", "");
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sExp = null;
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re = /(?!(\w)??)/;
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ms = "x".match(re);
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verify (ms, sExp, "neg zero-width look ahead 7", "");
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sExp = null;
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re = /(?!(\w)*?)/;
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ms = "x".match(re);
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verify (ms, sExp, "neg zero-width look ahead 8", "");
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sExp = new Array("", "");
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re = /(?!(\w)+?)/;
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ms = "x".match(re);
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verify (ms.join(), sExp.join(), "neg zero-width look ahead 8", "");
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apEndTest();
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}
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regex014();
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if(lFailCount >= 0) System.Environment.ExitCode = lFailCount;
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else System.Environment.ExitCode = 1;
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function apInitTest(stTestName) {
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lFailCount = 0;
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apGlobalObj = new Object();
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apGlobalObj.apGetPlatform = function Funca() { return "Rotor" }
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apGlobalObj.LangHost = function Funcb() { return 1033;}
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apGlobalObj.apGetLangExt = function Funcc(num) { return "EN"; }
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apPlatform = apGlobalObj.apGetPlatform();
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var sVer = "1.0"; //navigator.appVersion.toUpperCase().charAt(navigator.appVersion.toUpperCase().indexOf("MSIE")+5);
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apGlobalObj.apGetHost = function Funcp() { return "Rotor " + sVer; }
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print ("apInitTest: " + stTestName);
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}
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function apInitScenario(stScenarioName) {print( "\tapInitScenario: " + stScenarioName);}
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function apLogFailInfo(stMessage, stExpected, stActual, stBugNum) {
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lFailCount = lFailCount + 1;
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print ("***** FAILED:");
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print ("\t\t" + stMessage);
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print ("\t\tExpected: " + stExpected);
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print ("\t\tActual: " + stActual);
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}
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function apGetLocale(){ return 1033; }
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function apWriteDebug(s) { print("dbg ---> " + s) }
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function apEndTest() {}
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