Change interpretation of malformed \c? escapes in RegExp to match JSC.

test/cctest/test-regexp.cc

Index: test/cctest/test-regexp.cc
diff --git a/test/cctest/test-regexp.cc b/test/cctest/test-regexp.cc
index 3e6709aef43c47aea5da17f787558cc9755c1069..bd49ada2ba4e647c69d677278336b50f7192cbc2 100644
--- a/test/cctest/test-regexp.cc
+++ b/test/cctest/test-regexp.cc
@@ -178,9 +178,9 @@ TEST(Parser) {
   CHECK_PARSE_EQ("[z-\\d]", "[z - 0-9]");
   CHECK_PARSE_EQ("\\cj\\cJ\\ci\\cI\\ck\\cK",
                  "'\\x0a\\x0a\\x09\\x09\\x0b\\x0b'");
-  CHECK_PARSE_EQ("\\c!", "'c!'");
-  CHECK_PARSE_EQ("\\c_", "'c_'");
-  CHECK_PARSE_EQ("\\c~", "'c~'");
+  CHECK_PARSE_EQ("\\c!", "'\\c!'");
+  CHECK_PARSE_EQ("\\c_", "'\\c_'");
+  CHECK_PARSE_EQ("\\c~", "'\\c~'");
   CHECK_PARSE_EQ("[a\\]c]", "[a ] c]");
   CHECK_PARSE_EQ("\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ", "'[]{}()%^# '");
   CHECK_PARSE_EQ("[\\[\\]\\{\\}\\(\\)\\%\\^\\#\\ ]", "[[ ] { } ( ) % ^ #  ]");
@@ -234,7 +234,7 @@ TEST(Parser) {
   CHECK_PARSE_EQ("\\x34", "'\x34'");
   CHECK_PARSE_EQ("\\x60", "'\x60'");
   CHECK_PARSE_EQ("\\x3z", "'x3z'");
-  CHECK_PARSE_EQ("\\c", "'c'");
+  CHECK_PARSE_EQ("\\c", "'\\c'");

[Erik Corry, 2011/01/07 10:38:16]

Test of the JS parser as well as the regexp parser.

[Lasse Reichstein, 2011/01/07 12:34:09]

Added to cctest/test-parsing.cc

   CHECK_PARSE_EQ("\\u0034", "'\x34'");
   CHECK_PARSE_EQ("\\u003z", "'u003z'");
   CHECK_PARSE_EQ("foo[z]*", "(: 'foo' (# 0 - g [z]))");