[Axiom-mail] empty line in an axiom pipe.

[Francois Maltey]

Hello, 

I try to write a emacs-mode for running axiom.

I can start axiom, read the output and send ONE commandline.

This is the minimal 3 lines to put in a new buffer as *Axiom* buffer :

(setenv "TERM" "xterm")
(setq axiomRun-process 
  (start-process "axiom" (current-buffer) "axiom" "-noht"))

Then eval this command in emacs, with ^X^E

(process-send-string axiomRun-process "123+456\n")

it's right.

You can send a lot of computation of one line, 
but wait the end of the axiom-computation !

If you add a "-noclef" after "-noht", the display is cleaner,  
but it isnot the problem.

I get a problem when I send 2 or more \n.

When I send one empty-line with this command, 
axiom doesn't seem to understand.

(process-send-string axiomRun-process "123+456\n\n")
(process-send-string axiomRun-process "123*456\n")

After this error, I must send two commands if I want to get one reponse.
And the reponse is the reponse of the previous command, not the reponse 
of this command.
The error is the same with the underscore _ end-line.

What is the normal use of axiom command-line ?

Thanks a lot for your help !

François

My log-file is this one, I replace ^H and ^M to ascii 2 chars.
----------------------------------------------------------------
(setenv "TERM" "xterm") 
(setq axiomRun-process 
  (start-process "axiom" (current-buffer) "axiom" "-noht"))
; I evaluate this two lines buffer with M-x eval-buffer
;
;
GCL (GNU Common Lisp)  2.6.6 CLtL1    Jan 18 2005 00:13:38
Source License: LGPL(gcl,gmp), GPL(unexec,bfd)
Binary License:  GPL due to GPL'ed components: (READLINE BFD UNEXEC)
Modifications of this banner must retain notice of a compatible license
Dedicated to the memory of W. Schelter

Use (help) to get some basic information on how to use GCL.
                        AXIOM Computer Algebra System 
                   Version: Axiom 3.0 Beta (February 2005)
              Timestamp: Monday February 21, 2005 at 20:01:15 
-----------------------------------------------------------------------------
   Issue )copyright to view copyright notices.
   Issue )summary for a summary of useful system commands.
   Issue )quit to leave AXIOM and return to shell.
-----------------------------------------------------------------------------
 
   Re-reading compress.daase   Re-reading interp.daase
   Re-reading operation.daase
   Re-reading category.daase
   Re-reading browse.daase
(1) -> 
;
; 
; then run this with C-x C-e at the end of the next line
;
(process-send-string axiomRun-process "123+456\n")
;
; the result appears before this lisp-line, I move it after.

(1) -> 123+456^H^H^H^H^H^H^H^M(1) -> ^M
   (1)  579
                                                        Type: PositiveInteger
;
; I can do a lot of calculs so.
; But when I send a 2 lines command axiom become silly :
;  
(process-send-string axiomRun-process "123+456\n\n")
;
(2) -> 123+456^H^H^H^H^H^H^H^M(2) -> ^M
   (2)  579
                                                        Type: PositiveInteger

(process-send-string axiomRun-process "12+56\n")
(process-send-string axiomRun-process "12+56\n")
(process-send-string axiomRun-process "12+56\n")
(process-send-string axiomRun-process "12+5\n")

;
; The command line redisplayed isn't the result : so 12+5=68.
;

(3) -> 12+56^H^H^H^H^H^M(3) -> ^M(3) -> 12+56^H^H^H^H^H^M(3) -> ^M
   (3)  68
                                                        Type: PositiveInteger
(4) -> 12+56^H^H^H^H^H^M(4) -> ^M
   (4)  68
                                                        Type: PositiveInteger
(5) -> 12+5^H^H^H^H^M(5) -> ^M
   (5)  68
                                                        Type: PositiveInte