Elisp syntax hilighting problem

[Lennart Borgman]

The defconst below sometimes upset the syntax highlighting so that the 
function following it is in the same face as the string:

(defconst rng-in-attribute-value-regex
 (replace-regexp-in-string
  "w"
  xmltok-ncname-regexp
  "<w\\(?::w\\)?\
\\(?:[ \t\r\n]+w\\(?::w\\)?[ \t\r\n]*=\
[ \t\r\n]*\\(?:\"[^\"]*\"\\|'[^']*'\\)\\)*\
[ \t\r\n]+\\(w\\(:w\\)?\\)[ \t\r\n]*=[ \t\r\n]*\
\\(\"[^\"]*\\|'[^']*\\)\\="
  t
  t))


More problems: The \\= is not marked. The two [ at beginning of line is marked 
with a red face.