Mercurial > hg > openjdk > lambda > nashorn
changeset 560:572a2e50ba9e
8024512: Regex /[^\[]/ doesn't match
Reviewed-by: jlaskey, sundar
| author | hannesw |
|---|---|
| date | Thu, 12 Sep 2013 17:13:59 +0200 |
| parents | e60f6add90d7 |
| children | 917b16e509bd |
| files | src/jdk/nashorn/internal/runtime/regexp/RegExpScanner.java test/script/basic/JDK-8024512.js test/script/basic/JDK-8024512.js.EXPECTED |
| diffstat | 3 files changed, 92 insertions(+), 10 deletions(-) [+] |
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--- a/src/jdk/nashorn/internal/runtime/regexp/RegExpScanner.java Thu Sep 12 14:02:15 2013 +0200 +++ b/src/jdk/nashorn/internal/runtime/regexp/RegExpScanner.java Thu Sep 12 17:13:59 2013 +0200 @@ -263,15 +263,6 @@ } if (atom()) { - // Check for character classes that never or always match - if (sb.toString().endsWith("[]")) { - sb.setLength(sb.length() - 1); - sb.append("^\\s\\S]"); - } else if (sb.toString().endsWith("[^]")) { - sb.setLength(sb.length() - 2); - sb.append("\\s\\S]"); - } - quantifier(); return true; } @@ -767,7 +758,18 @@ if (classRanges() && ch0 == ']') { pop(']'); - return commit(1); + commit(1); + + // Substitute empty character classes [] and [^] that never or always match + if (position == startIn + 2) { + sb.setLength(sb.length() - 1); + sb.append("^\\s\\S]"); + } else if (position == startIn + 3 && inNegativeClass) { + sb.setLength(sb.length() - 2); + sb.append("\\s\\S]"); + } + + return true; } } finally { inCharClass = false; // no nested character classes in JavaScript
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/script/basic/JDK-8024512.js Thu Sep 12 17:13:59 2013 +0200 @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/** + * JDK-8024512: Regex /[^\[]/ doesn't match + * + * @test + * @run + */ + +print("[M]".match(/(\[[^\[]*\])/)); +print("[[]".match(/(\[[^\[]*\])/)); + +print("[M]".match(/(\[[^\[^]*\])/)); +print("[[]".match(/(\[[^\[^]*\])/)); +print("[^]".match(/(\[[^\[^]*\])/)); + +print("[M]".match(/(\[[^\[]\])/)); +print("[[]".match(/(\[[^\[]\])/)); + +print("[M]".match(/(\[[^\[^]\])/)); +print("[[]".match(/(\[[^\[^]\])/)); +print("[^]".match(/(\[[^\[^]\])/)); + +print("M".match(/[^\[]/)); +print("[".match(/[^\[]/)); +print("^".match(/[^\[]/)); + +// Repeat above without escaping inner square bracket +print("[M]".match(/(\[[^[]\])/)); +print("[[]".match(/(\[[^[]\])/)); + +print("[M]".match(/(\[[^[^]\])/)); +print("[[]".match(/(\[[^[^]\])/)); +print("[^]".match(/(\[[^[^]\])/)); + +print("M".match(/[^[]/)); +print("[".match(/[^[]/)); +print("^".match(/[^[]/));