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New "docclean" target for makefile (removes glossary dependencies when rebuilding documentation). Changes to .fs files and prim are restricted to glossary (\G) additions for the documentation; this has necessitated the addition of new white-space in places to stop the \G stuff from obscuring the code. Many additions to doc/gforth.ds - new sections added, a few things moved and some sections re-written slightly. There are a set of things to tidy up before this rev. is suitable for release, and those will be my highest priority. I have also used "@comment TODO" to highlight other sections I plan to work on, and added a set of comments at the start to indicate other things I plan to modify in the medium-term.
\ input output basics (extra since) 02mar97jaw
\ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation; either version 2
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program; if not, write to the Free Software
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
\ Output 13feb93py
has? os [IF]
0 Value outfile-id ( -- file-id ) \ gforth
0 Value infile-id ( -- file-id ) \ gforth
: (type) ( c-addr u -- ) \ gforth
outfile-id write-file drop \ !! use ?DUP-IF THROW ENDIF instead of DROP ?
;
: (emit) ( c -- ) \ gforth
outfile-id emit-file drop \ !! use ?DUP-IF THROW ENDIF instead of DROP ?
;
: (key) ( -- c ) \ gforth
infile-id key-file ;
: (key?) ( -- flag ) \ gforth
infile-id key?-file ;
[THEN]
undef-words
Defer type ( c-addr u -- ) \ core
\G If u>0, display u characters from a string starting with the character
\G stored at c-addr.
: (type) BEGIN dup WHILE
>r dup c@ (emit) 1+ r> 1- REPEAT 2drop ;
[IFDEF] (type) ' (type) IS Type [THEN]
Defer emit ( c -- ) \ core
\G Display the character associated with character value c.
: (emit) ( c -- ) \ gforth
0 emit-file drop \ !! use ?DUP-IF THROW ENDIF instead of DROP ?
;
[IFDEF] (emit) ' (emit) IS emit [THEN]
Defer key ( -- c ) \ core
: (key) ( -- c ) \ gforth
0 key-file ;
[IFDEF] (key) ' (key) IS key [THEN]
Defer key? ( -- flag ) \ core
: (key?) ( -- flag ) \ gforth
0 key?-file ;
[IFDEF] (key?) ' (key?) IS key? [THEN]
all-words
: (.") "lit count type ;
: (S") "lit count ;
\ Input 13feb93py
07 constant #bell ( -- c ) \ gforth
08 constant #bs ( -- c ) \ gforth
09 constant #tab ( -- c ) \ gforth
7F constant #del ( -- c ) \ gforth
0D constant #cr ( -- c ) \ gforth
\ the newline key code
0C constant #ff ( -- c ) \ gforth
0A constant #lf ( -- c ) \ gforth
: bell #bell emit [ has? os [IF] ] outfile-id flush-file drop [ [THEN] ] ;
: cr ( -- ) \ core
\G Output a carriage-return and (if appropriate for the host operating system)
\G a line feed.
[ has? crlf [IF] ] #cr emit #lf emit
[ [ELSE] ] #lf emit
[ [THEN] ]
;
: space ( -- ) \ core
\G Display one space.
bl emit ;
has? ec [IF]
: spaces ( n -- ) \ core
\G If n > 0, display n spaces.
0 max 0 ?DO space LOOP ;
: backspaces 0 max 0 ?DO #bs emit LOOP ;
[ELSE]
\ space spaces 21mar93py
decimal
Create spaces ( u -- ) \ core
\G If n > 0, display n spaces.
bl 80 times \ times from target compiler! 11may93jaw
DOES> ( u -- )
swap
0 max 0 ?DO I' I - &80 min 2dup type +LOOP drop ;
Create backspaces
08 80 times \ times from target compiler! 11may93jaw
DOES> ( u -- )
swap
0 max 0 ?DO I' I - &80 min 2dup type +LOOP drop ;
hex
[THEN]
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