CC Mode 5.28 (C++); "case" syntax hilights wrong

[Wesley J. Landaker]

When "case" is put in a string, it syntax hilights incorrectly.

int main() {
  const char *s = "case";
}

The closing quote (and anything else you put after it before the
semicolon) will be RED. If the word is anything but "case" this
doesn't happen (i.e. it doesn't do it for other keywords like "for",
"while", "do", etc as far as I can tell).

Emacs  : XEmacs 21.4 (patch 12) "Portable Code" [Lucid] (i386-mandrake-linux, 
Mule) of Thu Apr  3 2003 on ke.mandrakesoft.com
Package: CC Mode 5.28 (C++)
Buffer Style: gnu

c-emacs-features: (8-bit)

current state:
==============
(setq
 c-basic-offset 2
 c-comment-only-line-offset '(0 . 0)
 c-block-comment-prefix ""
 c-comment-prefix-regexp '((pike-mode . "//+!?\\|\\**") (other . "//+\\|\\**"))
 c-cleanup-list '(scope-operator)
 c-hanging-braces-alist '((brace-list-open) (brace-entry-open)
                          (substatement-open after)
                          (block-close . c-snug-do-while)
                          (extern-lang-open after) (inexpr-class-open after)
                          (inexpr-class-close before))
 c-hanging-colons-alist nil
 c-hanging-semi&comma-criteria '(c-semi&comma-inside-parenlist)
 c-backslash-column 48
 c-label-minimum-indentation 1
 c-offsets-alist '((string . c-lineup-dont-change)
                   (c . c-lineup-C-comments)
                   (defun-open . 0)
                   (defun-close . 0)
                   (defun-block-intro . +)
                   (class-open . 0)
                   (class-close . 0)
                   (inline-close . 0)
                   (func-decl-cont . +)
                   (knr-argdecl . 0)
                   (topmost-intro . 0)
                   (topmost-intro-cont . 0)
                   (member-init-intro . +)
                   (member-init-cont . c-lineup-multi-inher)
                   (inher-intro . +)
                   (inher-cont . c-lineup-multi-inher)
                   (block-open . 0)
                   (block-close . 0)
                   (brace-list-close . 0)
                   (brace-list-intro . +)
                   (brace-list-entry . 0)
                   (brace-entry-open . 0)
                   (statement . 0)
                   (statement-case-intro . +)
                   (substatement . +)
                   (case-label . 0)
                   (access-label . -)
                   (do-while-closure . 0)
                   (else-clause . 0)
                   (catch-clause . 0)
                   (comment-intro . c-lineup-comment)
                   (arglist-cont . 0)
                   (arglist-cont-nonempty . c-lineup-arglist)
                   (stream-op . c-lineup-streamop)
                   (inclass . +)
                   (cpp-macro . [0])
                   (cpp-macro-cont . c-lineup-dont-change)
                   (friend . 0)
                   (objc-method-intro . [0])
                   (objc-method-args-cont . c-lineup-ObjC-method-args)
                   (objc-method-call-cont . c-lineup-ObjC-method-call)
                   (extern-lang-open . 0)
                   (extern-lang-close . 0)
                   (inextern-lang . +)
                   (namespace-open . 0)
                   (namespace-close . 0)
                   (innamespace . +)
                   (template-args-cont c-lineup-template-args +)
                   (inlambda . c-lineup-inexpr-block)
                   (lambda-intro-cont . +)
                   (inexpr-statement . 0)
                   (inexpr-class . +)
                   (statement-block-intro . +)
                   (knr-argdecl-intro . 5)
                   (substatement-open . +)
                   (label . 0)
                   (statement-case-open . +)
                   (statement-cont . +)
                   (arglist-intro . c-lineup-arglist-intro-after-paren)
                   (arglist-close . c-lineup-arglist)
                   (inline-open . 0)
                   (brace-list-open . +)
                   )
 c-delete-function 'delete-char
 c-electric-pound-behavior nil
 c-indent-comments-syntactically-p nil
 c-tab-always-indent t
 defun-prompt-regexp nil
 tab-width 8
 comment-column 32
 parse-sexp-ignore-comments t
 signal-error-on-buffer-boundary t
 auto-fill-function nil
 comment-multi-line t
 comment-start-skip "/\\*+ *\\|//+ *"
 fill-prefix nil
 paragraph-start "[     ]*\\(//+\\|\\**\\)[     ]*$\\|^"
 adaptive-fill-mode t
 adaptive-fill-regexp "[        ]*\\(//+\\|\\**\\)[     ]*\\([  ]*\\([#;>*]+ 
+\\)?\\)"
 )