ielm-prompt read-only and customizable

[Juanma Barranquero]

This patch makes ielm-prompt be read-only, which seems like a sensible
thing to do (other prompts, like eshell's, are already read-only).

It also makes it customizable, so the read-only status of the prompt can
be automatically enforced.


                                                           /L/e/k/t/u



2002-02-18  Juanma Barranquero  <address@hidden>

        * ielm.el (ielm-prompt): Allow customization; make it read-only.



Index: ielm.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/ielm.el,v
retrieving revision 1.22
diff -u -r1.22 ielm.el
--- ielm.el     10 Oct 2000 17:27:38 -0000      1.22
+++ ielm.el     18 Feb 2002 09:51:38 -0000
@@ -70,8 +70,12 @@
   :type 'boolean
   :group 'ielm)
 
-(defvar ielm-prompt "ELISP> "
-  "Prompt used in IELM.")
+(defcustom ielm-prompt "ELISP> "
+  "Prompt used in IELM."
+  :type 'string
+  :group 'ielm
+  :get #'(lambda (symbol) (substring-no-properties (symbol-value symbol)))
+  :set #'(lambda (symbol value) (set symbol (propertize value 'read-only t 
'rear-nonsticky t))))
 
 (defcustom ielm-dynamic-return t
   "*Controls whether \\<ielm-map>\\[ielm-return] has intelligent behaviour in 
IELM.