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added more.fs for people with old terminals. WORDS and SEE now now respect the terminal size. a lot of reordering in the Makefile, approaching the GNU standards. factored NAME>STRING out of many words. use AC_DECL_SYS_SIGLIST test in configure.in. removed emitcounter (it was not used anyway). SYSTEM now unpreps and repreps the terminal. fixed byg in prims2x.fs. added NEEDS, ?CSP, !CSP. rewrote ALIAS?.
\ terminal size stuff
\ Copyright (C) 1996 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.
\ Currently we get the size from the environment. If the variables
\ LINES and COLUMNS are not set or wrong, do an "eval `resize`" before
\ starting Gforth. If you change the window size after starting
\ Gforth, you are out of luck.
\ To do: An implementation that uses termcap and/or ioctl TIOCGWINSZ.
\ # rows and columns that the terminal has.
\ these words are also present in PFE.
&80 Value cols
&24 Value rows
: getenv-unum ( udefault c-addr ucount -- u )
getenv over
IF
0. 2swap >number 0=
IF ( udefault d c-addr2 )
drop drop nip
ELSE ( udefault djunk c-addr2 )
drop 2drop
ENDIF
ELSE ( udefault c-addr ucount )
2drop
ENDIF ;
:noname ( -- )
defers 'cold
cols s" COLUMNS" getenv-unum TO cols
rows s" LINES" getenv-unum TO rows ;
IS 'cold
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