[gforth] / gforth / history.fs  

gforth: gforth/history.fs

Diff for /gforth/history.fs between version 1.22 and 1.26

version 1.22, Mon Jul 31 19:56:08 2000 UTC version 1.26, Sat Sep 23 15:46:57 2000 UTC
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 \ command line edit and history support                 16oct94py  \ command line edit and history support                 16oct94py
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995,2000 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
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 \ You should have received a copy of the GNU General Public License  \ You should have received a copy of the GNU General Public License
 \ along with this program; if not, write to the Free Software  \ along with this program; if not, write to the Free Software
 \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   
 :noname  :noname
     char [char] @ - ;      char [char] @ - ;
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 : (ret)  type-rest drop true space ;  : (ret)  type-rest drop true space ;
 : back  dup  IF  1- #bs emit  ELSE  #bell emit  THEN 0 ;  : back  dup  IF  1- #bs emit  ELSE  #bell emit  THEN 0 ;
 : forw 2 pick over <> IF  2dup + c@ emit 1+  ELSE  #bell emit  THEN 0 ;  : forw 2 pick over <> IF  2dup + c@ emit 1+  ELSE  #bell emit  THEN 0 ;
 : eof ( max span addr pos1 -- max span addr pos2 0 )  : <del> ( max span addr pos1 -- max span addr pos2 0 )
     2 pick over <>      2 pick over <>
     IF  forw drop (del)  ELSE  #bell emit  THEN  0 ;      IF  forw drop (del)  ELSE  #bell emit  THEN  0 ;
   : eof  2 pick over or 0=  IF  bye  ELSE  <del>  THEN ;
   
 ' forw  ctrl F cells ctrlkeys + !  ' forw  ctrl F cells ctrlkeys + !
 ' back  ctrl B cells ctrlkeys + !  ' back  ctrl B cells ctrlkeys + !
 ' ?del  ctrl H cells ctrlkeys + !  ' ?del  ctrl H cells ctrlkeys + !
 ' eof   ctrl D cells ctrlkeys + !  ' eof   ctrl D cells ctrlkeys + !
   ' <del> ctrl X cells ctrlkeys + !
   
 ' (ins) IS insert-char  ' (ins) IS insert-char
   
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     5 pick over 4 pick + prefix-found @ 0<> - < ;      5 pick over 4 pick + prefix-found @ 0<> - < ;
   
 : tab-expand ( max span addr pos1 -- max span addr pos2 0 )  : tab-expand ( max span addr pos1 -- max span addr pos2 0 )
     kill-expand  2dup extract-word search-prefix      kill-expand  2dup extract-word dup 0= IF  nip EXIT  THEN
     tib-full?      search-prefix  tib-full?
     IF    7 emit  2drop  0 0 prefix-found 2!      IF    7 emit  2drop  0 0 prefix-found 2!
     ELSE  bounds ?DO  I c@ (ins)  LOOP  THEN      ELSE  bounds ?DO  I c@ (ins)  LOOP  THEN
     prefix-found @ IF  bl (ins)  THEN  0 ;      prefix-found @ IF  bl (ins)  THEN  0 ;

Generate output suitable for use with a patch program
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