File:  [gforth] / gforth / wordlib.fs
Revision 1.4: download - view: text, annotated - select for diffs
Sat Sep 23 15:47:00 2000 UTC (18 years, 10 months ago) by anton
Branches: MAIN
CVS tags: v0-5-0, HEAD
changed FSF address in copyright messages

    1: \ wordlib.fs Handle shared library with forth primitive extentions 9oct97jaw
    2: 
    3: \ Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: \ Author: Jens Wilke
   22: \ Revision Log
   23: \ 09oct97jaw V1.0   Initial Version
   24: 
   25: \ ToDo:
   26: \
   27: \ Bootup initialization
   28: \ "require" for libs
   29: 
   30: 0 Value wlib 	\ temporary library handle to make live easy
   31: 
   32: : wl-catalog ( n lib-addr -- addr | u )
   33:     s" catalog" rot lib-sym dup 0=
   34:     ABORT" No word catalog"
   35:     icall1 ;
   36: 
   37: : wl-words ( lib-addr -- )
   38:     0 
   39:     BEGIN 2dup swap wl-catalog ?dup
   40:     WHILE cell+ count type space
   41: 	  1+
   42:     REPEAT 2drop ;
   43: 
   44: : wl-create ( adr adr2 len2 -- )
   45:     nextname
   46:     Create ,
   47:     DOES> @ wcall ;
   48: 
   49: : wl-tovoc ( lib-addr -- )
   50:     0 
   51:     BEGIN 2dup swap wl-catalog ?dup
   52:     WHILE dup @ swap cell+ count wl-create
   53: 	  1+
   54:     REPEAT 2drop ;
   55: 
   56: : (WordLibrary)
   57:     Create DOES> @ ;
   58: 
   59: : WordLibrary ( "wordname" "libfilename" )
   60:     (WordLibrary)
   61:     \ open library with forth path
   62:     bl word count open-fpath-file throw rot close-file throw
   63:     \ open library with correct path
   64:     open-lib
   65:     dup 0= ABORT" Library load error"
   66:     dup ,
   67:     wl-tovoc ;

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>