FYI: sed & &

[Akim Demaille]

Index: ChangeLog
from  Akim Demaille  <address@hidden>
        * doc/autoconf.texi (Limitations of Usual Tools): `&' in sed's rhs
        is portable.

2000-11-10  Akim Demaille  <address@hidden>

Index: doc/autoconf.texi
===================================================================
RCS file: /cvs/autoconf/doc/autoconf.texi,v
retrieving revision 1.380
diff -u -u -r1.380 autoconf.texi
--- doc/autoconf.texi 2000/11/10 14:55:37 1.380
+++ doc/autoconf.texi 2000/11/10 15:03:01
@@ -5791,6 +5791,9 @@
 sed @var{instruction-1};@var{instruction-2}
 @end example
 
+Contrary to yet another urban legend, you may portably use @samp{&} in
+the rhs to mean ``what was matched''.
+
 @command{sed} scripts should not use branch labels longer than 8
 characters and should not contain comments.