578fc3cc2d
BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10386090 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11623 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
128 lines
5.7 KiB
JavaScript
128 lines
5.7 KiB
JavaScript
// Copyright 2012 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Test that an optional capture is cleared between two matches.
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var str = "ABX X";
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str = str.replace(/(\w)?X/g, function(match, capture) {
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assertTrue(match.indexOf(capture) >= 0 ||
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capture === undefined);
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return capture ? capture.toLowerCase() : "-";
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});
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assertEquals("Ab -", str);
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// Test zero-length matches.
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str = "Als Gregor Samsa eines Morgens";
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str = str.replace(/\b/g, function(match, capture) {
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return "/";
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});
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assertEquals("/Als/ /Gregor/ /Samsa/ /eines/ /Morgens/", str);
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// Test zero-length matches that have non-zero-length sub-captures.
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str = "It was a pleasure to burn.";
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str = str.replace(/(?=(\w+))\b/g, function(match, capture) {
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return capture.length;
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});
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assertEquals("2It 3was 1a 8pleasure 2to 4burn.", str);
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// Test multiple captures.
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str = "Try not. Do, or do not. There is no try.";
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str = str.replace(/(not?)|(do)|(try)/gi,
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function(match, c1, c2, c3) {
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assertTrue((c1 === undefined && c2 === undefined) ||
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(c2 === undefined && c3 === undefined) ||
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(c1 === undefined && c3 === undefined));
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if (c1) return "-";
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if (c2) return "+";
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if (c3) return "="
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});
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assertEquals("= -. +, or + -. There is - =.", str);
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// Test multiple alternate captures.
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str = "FOUR LEGS GOOD, TWO LEGS BAD!";
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str = str.replace(/(FOUR|TWO) LEGS (GOOD|BAD)/g,
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function(match, num_legs, likeability) {
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assertTrue(num_legs !== undefined);
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assertTrue(likeability !== undefined);
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if (num_legs == "FOUR") assertTrue(likeability == "GOOD");
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if (num_legs == "TWO") assertTrue(likeability == "BAD");
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return match.length - 10;
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});
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assertEquals("4, 2!", str);
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// The same tests with UC16.
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//Test that an optional capture is cleared between two matches.
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str = "AB\u1234 \u1234";
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str = str.replace(/(\w)?\u1234/g,
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function(match, capture) {
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assertTrue(match.indexOf(capture) >= 0 ||
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capture === undefined);
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return capture ? capture.toLowerCase() : "-";
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});
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assertEquals("Ab -", str);
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// Test zero-length matches.
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str = "Als \u2623\u2642 eines Morgens";
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str = str.replace(/\b/g, function(match, capture) {
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return "/";
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});
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assertEquals("/Als/ \u2623\u2642 /eines/ /Morgens/", str);
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// Test zero-length matches that have non-zero-length sub-captures.
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str = "It was a pleasure to \u70e7.";
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str = str.replace(/(?=(\w+))\b/g, function(match, capture) {
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return capture.length;
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});
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assertEquals("2It 3was 1a 8pleasure 2to \u70e7.", str);
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// Test multiple captures.
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str = "Try not. D\u26aa, or d\u26aa not. There is no try.";
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str = str.replace(/(not?)|(d\u26aa)|(try)/gi,
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function(match, c1, c2, c3) {
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assertTrue((c1 === undefined && c2 === undefined) ||
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(c2 === undefined && c3 === undefined) ||
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(c1 === undefined && c3 === undefined));
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if (c1) return "-";
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if (c2) return "+";
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if (c3) return "="
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});
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assertEquals("= -. +, or + -. There is - =.", str);
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// Test multiple alternate captures.
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str = "FOUR \u817f GOOD, TWO \u817f BAD!";
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str = str.replace(/(FOUR|TWO) \u817f (GOOD|BAD)/g,
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function(match, num_legs, likeability) {
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assertTrue(num_legs !== undefined);
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assertTrue(likeability !== undefined);
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if (num_legs == "FOUR") assertTrue(likeability == "GOOD");
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if (num_legs == "TWO") assertTrue(likeability == "BAD");
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return match.length - 7;
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});
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assertEquals("4, 2!", str);
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