version 1.1, 1996/01/07 17:22:16
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version 1.7, 2003/08/25 14:17:47
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\ terminal size stuff |
\ terminal size stuff |
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\ Copyright (C) 1996 Free Software Foundation, Inc. |
\ Copyright (C) 1996,1997,2000,2003 Free Software Foundation, Inc. |
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\ 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. |
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\ Currently we get the size from the environment. If the variables |
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\ LINES and COLUMNS are not set or wrong, do an "eval `resize`" before |
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\ starting Gforth. If you change the window size after starting |
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\ Gforth, you are out of luck. |
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\ To do: An implementation that uses termcap and/or ioctl TIOCGWINSZ. |
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\ # rows and columns that the terminal has. |
\ # rows and columns that the terminal has. |
\ these words are also present in PFE. |
\ these words are also present in PFE. |
&80 Value cols |
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&24 Value rows |
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: getenv-unum ( udefault c-addr ucount -- u ) |
[IFUNDEF] form : form &24 &80 ; [THEN] |
getenv over |
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IF |
[IFUNDEF] rows |
0. 2swap >number 0= |
: rows ( -- u ) |
IF ( udefault d c-addr2 ) |
form drop ; |
drop drop nip |
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ELSE ( udefault djunk c-addr2 ) |
: cols ( -- u ) |
drop 2drop |
form nip ; |
ENDIF |
[THEN] |
ELSE ( udefault c-addr ucount ) |
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2drop |
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ENDIF ; |
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:noname ( -- ) |
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defers 'cold |
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cols s" COLUMNS" getenv-unum TO cols |
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rows s" LINES" getenv-unum TO rows ; |
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IS 'cold |
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