2024-01-19 02:50:27 +01:00
|
|
|
_ _ _ _ _ __ __
|
|
|
|
|
| |_ _____ _| |_ ___ _ _| |_ _ __ _ _| |_ | |__ _ _ / _|/ _| ___ _ __
|
|
|
|
|
| __/ _ \ \/ / __| / _ \| | | | __| '_ \| | | | __| | '_ \| | | | |_| |_ / _ \ '__|
|
|
|
|
|
| || __/> <| |_ | (_) | |_| | |_| |_) | |_| | |_ | |_) | |_| | _| _| __/ |
|
|
|
|
|
\__\___/_/\_\\__| \___/ \__,_|\__| .__/ \__,_|\__| |_.__/ \__,_|_| |_| \___|_|
|
|
|
|
|
|_|
|
|
|
|
|
|
|
|
|
|
The text output buffer (TOB) provides a virtual terminal model
|
|
|
|
|
emulating a small subset of the traditional DEC VT100. It is
|
|
|
|
|
sufficient to support the Termina vocabulary and application
|
|
|
|
|
scaffold.
|
|
|
|
|
|
|
|
|
|
This is intended to be a virtual terminal, with support for the
|
|
|
|
|
DEC escape sequence subset used by the termina vocabulary. At
|
|
|
|
|
present it does not yet implement most of the needed functions.
|
2024-01-18 16:49:44 +01:00
|
|
|
|
|
|
|
|
DEPENDS:
|
|
|
|
|
|
|
|
|
|
- konilo
|
|
|
|
|
|
|
|
|
|
TODO:
|
|
|
|
|
|
|
|
|
|
- cursor row, col
|
|
|
|
|
- improve handling of newlines
|
|
|
|
|
- escape sequence support
|
2024-01-19 02:50:27 +01:00
|
|
|
- separate out attributes to separate buffers
|
2024-01-18 16:49:44 +01:00
|
|
|
|
|
|
|
|
You can create constants for the terminal width & height before
|
|
|
|
|
loading the TOB library. If you do not do so, this will create
|
|
|
|
|
them for an 80x25 display.
|
|
|
|
|
|
|
|
|
|
~~~
|
|
|
|
|
'TOB:W d:lookup [ #80 'TOB:W const ] -if
|
|
|
|
|
'TOB:H d:lookup [ #25 'TOB:H const ] -if
|
|
|
|
|
~~~
|
|
|
|
|
|
|
|
|
|
~~~
|
|
|
|
|
'TOB d:create TOB:W TOB:H n:mul #4 n:mul allot
|
|
|
|
|
|
|
|
|
|
'TX var (col)
|
|
|
|
|
'TY var (row)
|
|
|
|
|
|
|
|
|
|
:scroll (source) &TOB TOB:W n:add
|
|
|
|
|
(dest) &TOB
|
|
|
|
|
(length) TOB:W TOB:H n:dec n:mul copy
|
|
|
|
|
&TY v:dec
|
|
|
|
|
(erase) #32 &TOB TOB:W TOB:H n:dec n:mul n:add TOB:W fill
|
|
|
|
|
;
|
|
|
|
|
|
2024-01-19 16:32:50 +01:00
|
|
|
:advance-cursor @TX TOB:W eq? [ #0 !TX &TY v:inc ] if
|
2024-01-18 16:49:44 +01:00
|
|
|
@TY TOB:H eq? [ &TY v:dec scroll ] if ;
|
|
|
|
|
|
|
|
|
|
:handle
|
|
|
|
|
#8 [ ] case
|
|
|
|
|
#127 [ ] case
|
|
|
|
|
#9 [ ] case
|
|
|
|
|
#10 [ #0 !TX &TY v:inc ] case
|
|
|
|
|
#13 [ #0 !TX &TY v:inc ] case
|
|
|
|
|
&TOB TOB:W @TY n:mul n:add @TX n:add store &TX v:inc ;
|
|
|
|
|
|
|
|
|
|
:tob:put (c-) handle advance-cursor ;
|
|
|
|
|
|
|
|
|
|
:tob:display
|
|
|
|
|
&TOB TOB:H [ TOB:W [ fetch-next c:put ] times nl ] times drop ;
|
|
|
|
|
|
|
|
|
|
:tob:with (q-) &tob:put &c:put set-hook call &c:put unhook ;
|
|
|
|
|
|
|
|
|
|
:tob:clear (-)
|
|
|
|
|
TOB:W TOB:H n:mul [ #32 tob:put ] times #0 !TX #0 !TY ;
|
|
|
|
|
|
|
|
|
|
tob:clear
|
|
|
|
|
~~~
|
