[slime-devel] slime-c-p-c

[Madhu]

Re: slime-complete-symbol* : I noticed that slime-c-p-c does not work
correctly but can mangle text after a completion is chosen , [I'm
appending a test case to the end of this message.]

I'm afraid I'm to blame for this, I think: the patch I submitted
claiming to fix XEmacs behaviour (on 2007-08-04) and which was committed
on 2007-09-04 is incorrect [ 1. the analysis is not restricted to
XEmacs, and 2. Emacs choose-completion does not work right unless the
text in the buffer is a proper prefix of the completions displayed.  I
cannot see any lowest-common-denominator solution for this.]

I would suggest reverting the patch.  The downside is that you get back
the original behaviour, which mangles the text BEFORE the completion is
chosen: If you type "m-v" and hit TAB the function will delete your text
and leave you with "m" -- because "m" is emacs' completed-prefix
matching both "machine-version" and "multiple-value*"s.  [This may or
may not be acceptable, indeed whether it is what you want would depend
on which buffer you are in, and what symbol you are trying to complete]

Apologies for the incomplete patch and the earlier noise over the
[unrelated yet related] unambiguous-prefix issue (from 06)..

--
Madhu

;;; PS: Here is a test case transcript, and also what to expect on the
;;; suggest fix :

;;;
;;; 1. First we recreate the situation in acl, where there are multiple
;;; completions for "l-p-t".
;;;

CL-USER> '(locale-print-time logical-pathname-translations
 logical-pathname-translations-database-pathnames)

(LOCALE-PRINT-TIME LOGICAL-PATHNAME-TRANSLATIONS                               
 LOGICAL-PATHNAME-TRANSLATIONS-DATABASE-PATHNAMES)

;;;
;;; 2. slime-c-p-c-unambiguous-prefix-p is set to nil
;;; BEFORE:

CL-USER> l-p-t
;;;           ^^^ hit TAB, then choose the logical-pathname-translations 
;;;           completion in the *Completions* buffer


;;; AFTER: The completed form looks like:

CL-USER> (l-plogical-pathname-translations

;;;
;;; 3. Next try after setting slime-c-p-c-unambiguous-prefix-p nil
;;; BEFORE:

CL-USER> l-p-t 
;;;           ^^^ hit TAB, then choose the logical-pathname-translations 
;;;           completion in the *Completions* buffer

;;; AFTER:            

CL-USER> (logical-pathname-translationsp-t

;;;
;;; 4.WITH 2007-09-04 PATCH REVERTED:
;;; BEFORE:

CL-USER> l-p-t 
;;;           ^^^ hit TAB, then choose the logical-pathname-translations 
;;;           completion in the *Completions* buffer

;;; AFTER:

CL-USER> (lo
             ^^^ note that the text you input is gone.

;;; but at least choosing a completion won't mangle the text in your
;;; buffer