rx.el change

rx.el change

[Richard Stallman]

Would someone please install this?

To: emacs-pretest-bug@gnu.org   
From: Dave Love <d.love@dl.ac.uk>
Date: Thu, 18 Mar 2004 17:35:39 +0000
Subject: rx.el changes
Sender: emacs-pretest-bug-bounces+rms=gnu.org@gnu.org

The changes to rx.el since 21.3 need to go in NEWS.

The following change isn't there, though I thought I sent it.  It
makes `rx' work the way it appears to have been intended in view of
the doc, the fact it's basically redundant with rx-to-string
otherwise, and being what you normally want.  It's unlikely to affect
much usage, and there have been incompatible changes made already.

I don't understand why error messages were changed to start `rx'
instead of `Rx', against the conventions for error messages and
package names.

2004-03-18  Dave Love  <fx@gnu.org>

	* emacs-lisp/rx.el (rx): Work at compile time, not run time.

Index: rx.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/emacs-lisp/rx.el,v
retrieving revision 1.8
diff -u -p -u -r1.8 rx.el
--- rx.el	16 Feb 2004 16:50:18 -0000	1.8
+++ rx.el	18 Mar 2004 17:21:51 -0000
@@ -1,6 +1,6 @@
 ;;; rx.el --- sexp notation for regular expressions
 
-;; Copyright (C) 2001 Free Software Foundation, Inc.
+;; Copyright (C) 2001, 2003 Free Software Foundation, Inc.
 
 ;; Author: Gerd Moellmann <gerd@gnu.org>
 ;; Maintainer: FSF
@@ -799,6 +799,9 @@ CHAR
 `(repeat N M SEXP)'
      matches N to M occurrences of what SEXP matches.
 
+`(backref N)'
+    matches what was matched previously by submatch N.
+
 `(eval FORM)'
       evaluate FORM and insert result.  If result is a string,
       `regexp-quote' it.
@@ -806,7 +809,7 @@ CHAR
 `(regexp REGEXP)'
       include REGEXP in string notation in the result."
 
-  `(rx-to-string ',regexp))
+  (rx-to-string regexp))
 
 
 (provide 'rx)


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