Revert 5911 (RegExp fail on invalid range syntax).

test/mjsunit/regexp.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 92 matching lines @@
 assertFalse(re.test("\x03"));  // I.e., read as \cc
 
 re = /^[\c]]$/;
 assertTrue(re.test("c]"));
 assertFalse(re.test("\\]"));
 assertFalse(re.test("\x1d"));  // ']' & 0x1f
 assertFalse(re.test("\\]"));
 assertFalse(re.test("\x03]"));  // I.e., read as \cc
 
 
+// Test that we handle \s and \S correctly inside some bizarre
+// character classes.
+re = /[\s-:]/;
+assertTrue(re.test('-'));
+assertTrue(re.test(':'));
+assertTrue(re.test(' '));
+assertTrue(re.test('\t'));
+assertTrue(re.test('\n'));
+assertFalse(re.test('a'));
+assertFalse(re.test('Z'));
+
+re = /[\S-:]/;
+assertTrue(re.test('-'));
+assertTrue(re.test(':'));
+assertFalse(re.test(' '));
+assertFalse(re.test('\t'));
+assertFalse(re.test('\n'));
+assertTrue(re.test('a'));
+assertTrue(re.test('Z'));
+
+re = /[^\s-:]/;
+assertFalse(re.test('-'));
+assertFalse(re.test(':'));
+assertFalse(re.test(' '));
+assertFalse(re.test('\t'));
+assertFalse(re.test('\n'));
+assertTrue(re.test('a'));
+assertTrue(re.test('Z'));
+
+re = /[^\S-:]/;
+assertFalse(re.test('-'));
+assertFalse(re.test(':'));
+assertTrue(re.test(' '));
+assertTrue(re.test('\t'));
+assertTrue(re.test('\n'));
+assertFalse(re.test('a'));
+assertFalse(re.test('Z'));
+
 re = /[\s]/;
 assertFalse(re.test('-'));
 assertFalse(re.test(':'));
 assertTrue(re.test(' '));
 assertTrue(re.test('\t'));
 assertTrue(re.test('\n'));
 assertFalse(re.test('a'));
 assertFalse(re.test('Z'));
 
 re = /[^\s]/;
@@ skipping 479 matching lines @@
 
 // Only partially anchored.
 var re = /(?:a|bc$)/;
 assertTrue(re.test("a"));
 assertTrue(re.test("bc"));
 assertEquals(["a"], re.exec("abc"));
 assertEquals(4, re.exec("zimzamzumba").index);
 assertEquals(["bc"], re.exec("zimzomzumbc"));
 assertFalse(re.test("c"));
 assertFalse(re.test(""));
-
-
-function testInvalidRange(str) {
-  try {
-    RegExp(str).test("x");
-  } catch (e) {
-    return;
-  }    
-  assetUnreachable("Allowed invalid range in " + str);
-}
-
-function testValidRange(str) {
-  try { 
-    RegExp(str).test("x");
-  } catch (e) {
-    assertUnreachable("Shouldn't fail parsing: " + str + ", was: " + e);
-  }
-}
-
-testInvalidRange("[\\d-z]");
-testInvalidRange("[z-\\d]");
-testInvalidRange("[\\d-\\d]");
-testInvalidRange("[z-x]");  // Larger value first.
-testInvalidRange("[x-\\d-\\d]");
-
-testValidRange("[x-z]");
-testValidRange("[!--\d]");  // Second "-" is end of range.
-testValidRange("[\d-]");
-testValidRange("[-\d]");
-testValidRange("[-\d-]");
-testValidRange("[^-\d-]");
-testValidRange("[^-\d-]");
-testValidRange("[0-9-\w]");
-
-// Escaped dashes do not count as range operators.
-testValidRange("[\\d\\-z]");
-testValidRange("[z\\-\\d]");
-testValidRange("[\\d\\-\\d]");
-testValidRange("[z\\-x]");
-testValidRange("[x\\-\\d\\-\\d]");
-
-
-
-