Path: utzoo!utgpu!water!watmath!clyde!mtunx!whuts!homxb!ho7cad!msb
From: msb@ho5cad.ATT.COM
Newsgroups: comp.emacs
Subject: does concat really return a string
Message-ID: <324@ho7cad.ATT.COM>
Date: 5 May 88 19:55:16 GMT
Sender: nuucp@ho7cad.ATT.COM
Lines: 39

I am trying to 'concat' a string to be ised in 'interactive' so that a
default string shows up in the 'interactive' string.  As a test case,
I have the following sections of code.  Doesn't seem that the return
value of 'concat' can be fed to 'interactive'.

What gives?  Is there a good way to print an 'interactive' prompt of
the form:

	"gimme a character [ character-chosen-last-time ]"

Then assume that an empty character assumes the
character-chosen-last-time value?

****************************************************************

;;; This one works
;;; ================================================================
;;; (defun test-case (test-variable)
;;;   "this is a test, only a test.  Do not use it"
;;;   (interactive "*cgimme a character")
;;;   (message "character was %c" test-variable)
;;;   )
;;; 
;;; 
;;; This one chokes with the following error:
;;; 	Wrong type argument: listp, "*cgimme a character"
;;; ================================================================
;;; (defun test-case (test-variable)
;;;   "this is a test, only a test.  Do not use it"
;;;   (interactive (concat "*cgimme " "a " "character"))
;;;   (message "character was %c" test-variable)
;;;   )
;;; 

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