From: John Millaway <john43@users.sourceforge.net>
Date: Mon, 13 Feb 2006 21:45:06 +0000 (+0000)
Subject: Documentation.
X-Git-Tag: flex-2-5-33~30
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9d660e2b9b934f82b90072a7be69301799d44c40;p=flex

Documentation.
---

diff --git a/doc/flex.texi b/doc/flex.texi
index 51f01cf..ed53def 100644
--- a/doc/flex.texi
+++ b/doc/flex.texi
@@ -8278,11 +8278,15 @@ code from unwanted @code{m4} processing.
 @itemize
 
 @item Do not use symbols that begin with, @samp{m4_}, such as, @samp{m4_define},
-or @samp{m4_include}, since those are reserved for @code{m4} macro names.
+or @samp{m4_include}, since those are reserved for @code{m4} macro names. If for 
+some reason you need m4_ as a prefix, use a preprocessor #define to get your
+symbol past m4 unmangled.
 
 @item Do not use the strings @samp{[[} or @samp{]]} anywhere in your code. The
-former is not valid in C, except within comments, but the latter is valid in
-code such as @code{x[y[z]]}.
+former is not valid in C, except within comments and strings, but the latter is valid in
+code such as @code{x[y[z]]}. The solution is simple. To get the literal string 
+@code{"]]"}, use @code{"]""]"}. To get the array notation @code{x[y[z]]},
+use @code{x[y[z] ]}.
 
 @end itemize