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From: Tim X on 14 Feb 2010 17:23

Petter Gustad <newsmailcomp6(a)gustad.com> writes:

> What is the current suggested method for using UTF-8 strings with
> Slime/Emacs/SBCL?
>
> I'm using:
>
> echo $LC_CTYPE
> en_US.UTF-8
>
> (stream-external-format *standard-output*)
> returns:
>
> :UTF-8
>
> In emacs:
>
> (require 'slime)
> (set-language-environment "UTF-8")
> (setq slime-net-coding-system 'utf-8-unix)
> (setq inferior-lisp-program "sbcl")
>
>
> But entering an UTF-8 string causes it to crash (copied from an UTF-8
> buffer with a "u" in the bottom left corner"):
>
> MYPACKAGE> "Skates"
> "Skates"
> MYPACKAGE> "Skøyter"
> "Skøyter"
>
> In *Messages* I see:
>
> Connecting to Swank on port 5555.. [2 times]
> Connected. Hack and be merry!
> Toggling font-lock-mode off; better pass an explicit argument.
> Please type y, n, or !:
> Loading cl-indent...done
> Mark set [2 times]
> error in process filter: let*: Wrong type argument: listp, :presentation-end
> error in process filter: Wrong type argument: listp, :presentation-end
>
> In my REPL I observe:
>
> dispatch-event: (:WRITE-STRING "\"Skates\"" :REPL-RESULT)
> WRITE: (:write-string "\"Skates\"" :repl-result)
> dispatch-event: (:PRESENTATION-END 64 :REPL-RESULT)
> WRITE: (:presentation-end 64 :repl-result)
> dispatch-event: (:WRITE-STRING "
> " :REPL-RESULT)
> WRITE: (:write-string "
> " :repl-result)
> wait-for-event: (COMMON-LISP:OR (:EMACS-REX . SWANK::_) (:EMACS-CHANNEL-SEND . S
> WANK::_)) NIL
> dispatch-event: (:RETURN #<SB-THREAD:THREAD "repl-thread" RUNNING {1002565141}>
> (:OK NIL) 5)
> WRITE: (:return (:ok nil) 5)
> READ: "(:emacs-rex (swank:listener-eval \"\\\"Sk\x00C3\x00B8yter\\\"
> \") \"ENMILLIONKRONER\" :repl-thread 6)"
> dispatch-event: (:EMACS-REX (SWANK:LISTENER-EVAL "\"Sk\x00C3\x00B8yter\"
> ") "ENMILLIONKRONER" :REPL-THREAD 6)
> send-event: #<SB-THREAD:THREAD "repl-thread" RUNNING {1002565141}> (:EMACS-REX (
> SWANK:LISTENER-EVAL "\"Sk\x00C3\x00B8yter\"
> ") "ENMILLIONKRONER" 6)
> wait-for-event: (COMMON-LISP:OR (:EMACS-REX . SWANK::_) (:EMACS-CHANNEL-SEND . S
> WANK::_)) NIL
> dispatch-event: (:PRESENTATION-START 65 :REPL-RESULT)
> WRITE: (:presentation-start 65 :repl-result)
> dispatch-event: (:WRITE-STRING "\"Sk\x00C3\x00B8yter\"" :REPL-RESULT)
> WRITE: (:write-string "\"Sk\x00C3\x00B8yter\"" :repl-result)
> dispatch-event: (:PRESENTATION-END 65 :REPL-RESULT)
> WRITE: (:presentation-end 65 :repl-result)
> dispatch-event: (:WRITE-STRING "
> " :REPL-RESULT)
> WRITE: (:write-string "
> " :repl-result)
> dispatch-event: (:RETURN #<SB-THREAD:THREAD "repl-thread" RUNNING {1002565141}> (:OK NIL) 6)
> WRITE: (:return (:ok nil) 6)
> close-connection: Short read: length=6 count=1 ...
>
>
> This will crash in Slime, but works in the REPL:
>
> (coerce (loop for c in (list #\S #\k #\LATIN_SMALL_LETTER_O_WITH_STROKE #\y #\t #\e #\r) collect c) 'string)
>
>
> Emacs "22.3.1"
> Slime ChangeLog 2009-12-03
> SBCL 1.0.19-gentoo
>
> Any ideas?
>

First thing I'd do is uprade to emacs 23. A lot of the character
encoding subsystems was re-written for emacs 23 and is now much cleaner.


Tim

--
tcross (at) rapttech dot com dot au
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