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Diff for /gforth/history.fs between versions 1.10 and 1.11

version 1.10, 1996/05/09 18:13:00 version 1.11, 1996/07/16 20:57:10
Line 1 Line 1
 \ History file support                                 16oct94py  \ command line edit and history support                 16oct94py
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995 Free Software Foundation, Inc.
   
Line 18 Line 18
 \ 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., 675 Mass Ave, Cambridge, MA 02139, USA.
   
   :noname
       char [char] @ - ;
   :noname
       char [char] @ - postpone Literal ;
   special: ctrl  ( "<char>" -- ctrl-code )
   
   \ command line editing                                  16oct94py
   
   : >string  ( span addr pos1 -- span addr pos1 addr2 len )
     over 3 pick 2 pick chars /string ;
   : type-rest ( span addr pos1 -- span addr pos1 back )
     >string tuck type ;
   : (del)  ( max span addr pos1 -- max span addr pos2 )
     1- >string over 1+ -rot move
     rot 1- -rot  #bs emit  type-rest bl emit 1+ backspaces ;
   : (ins)  ( max span addr pos1 char -- max span addr pos2 )
     >r >string over 1+ swap move 2dup chars + r> swap c!
     rot 1+ -rot type-rest 1- backspaces 1+ ;
   : ?del ( max span addr pos1 -- max span addr pos2 0 )
     dup  IF  (del)  THEN  0 ;
   : (ret)  type-rest drop true space ;
   : 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 ;
   : eof  2 pick over or 0=  IF
           bye
       ELSE  2 pick over <>
           IF  forw drop (del)  ELSE  #bell emit  THEN  0
       THEN ;
   
   ' forw  ctrl F cells ctrlkeys + !
   ' back  ctrl B cells ctrlkeys + !
   ' ?del  ctrl H cells ctrlkeys + !
   ' eof   ctrl D cells ctrlkeys + !
   
   ' (ins) IS insert-char
   
   \ history support                                       16oct94py
   
 0 Value history  0 Value history
   
 2Variable forward^  2Variable forward^
Line 72  s" ~/.gforth-history" get-history Line 110  s" ~/.gforth-history" get-history
   REPEAT  2drop  THEN    REPEAT  2drop  THEN
   tuck 2dup type 0 ;    tuck 2dup type 0 ;
   
 : ctrl ( compilation: "<char>" -- ) ( run-time: -- ctrl-code )  
     char [char] @ - postpone Literal ; immediate  
 interpretation: ( "<char>" -- ctrl-code )  
     char [char] @ - ;  
   
 Create lfpad #lf c,  Create lfpad #lf c,
   
 : (enter)  ( max span addr pos1 -- max span addr pos2 true )  : (enter)  ( max span addr pos1 -- max span addr pos2 true )
Removed from v.1.10  
changed lines
  Added in v.1.11

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