-REGEXP. MATCH and REGEXP are strings. If it's a function symbol, that
-function will be called with no arguments. If it's a variable symbol,
-then the variable will be referenced. If it's a list, then that list
-will be @code{eval}ed. In any case, if this returns a non-@code{nil}
-value, then the style is said to @dfn{match}.
+REGEXP. MATCH and REGEXP are strings. (There original article is the
+one you are replying or following up to. If you are not composing a
+reply or a followup, then there is nothing to match against.) If the
+@code{match} is a function symbol, that function will be called with no
+arguments. If it's a variable symbol, then the variable will be
+referenced. If it's a list, then that list will be @code{eval}ed. In
+any case, if this returns a non-@code{nil} value, then the style is said
+to @dfn{match}.