"Return non-nil if the current point is in a code fragment.
A code fragment is identified by an open parenthesis followed by a
symbol which is a valid function or a word in all CAPS, or a parenthesis
-that is quoted with the ' character. Only the region from START to LIMIT
+that is quoted with the \\=' character. Only the region from START to LIMIT
is allowed while searching for the bounding parenthesis."
(save-match-data
(save-restriction