mirror of
https://github.com/forth-ev/VolksForth.git
synced 2024-11-03 07:05:57 +00:00
137 lines
8.7 KiB
Plaintext
137 lines
8.7 KiB
Plaintext
Screen 0 not modified
|
||
0 \ Commandline EDitor for volksFORTH rev. 3.80 cas 10nov05
|
||
1 This File contains definitions to create an editable Forth
|
||
2 command line with history.
|
||
3 The commandline histroy allows older commands to be recalled.
|
||
4 These older commands will be stored in Screen 0 in a file called
|
||
5 "history" and will be preserved even when calling SAVE-SYSTEM.
|
||
6
|
||
7
|
||
8 Keys:
|
||
9 Cursor left/right
|
||
10 Delete Char <del> und <-
|
||
11 Delete Line <esc>
|
||
12 toggle Insert <ins>
|
||
13 finish line <enter>
|
||
14 Jump to Beginning/End of Line <pos1> <end>
|
||
15 recall older commands
|
||
Screen 1 not modified
|
||
0 \ Commandline EDitor LOAD-Screen cas 10nov05
|
||
1
|
||
2
|
||
3 : curleft ( -- ) at? 1- at ;
|
||
4 : currite ( -- ) at? 1+ at ;
|
||
5
|
||
6 1 5 +thru \ enhanced Input
|
||
7
|
||
8 .( Commandline Editor loaded ) cr
|
||
9
|
||
10
|
||
11
|
||
12
|
||
13
|
||
14
|
||
15
|
||
Screen 2 not modified
|
||
0 \ History -- Commandhistory cas 10nov05
|
||
1 makefile history 1 more
|
||
2
|
||
3 | Variable line# line# off
|
||
4 | Variable lastline# lastline# off
|
||
5
|
||
6 | : 'history ( n -- addr ) isfile push history
|
||
7 c/l * b/blk /mod block + ;
|
||
8
|
||
9 | : @line ( n -- addr len ) 'history c/l -trailing ;
|
||
10 | : !history ( addr line# -- )
|
||
11 'history dup c/l blank span @ c/l min cmove update ;
|
||
12 | : @history ( addr line# -- )
|
||
13 @line rot swap dup span ! cmove ;
|
||
14
|
||
15 | : +line ( n addr -- ) dup @ rot + l/s mod swap ! ;
|
||
Screen 3 not modified
|
||
0 \ End of input cas 10nov05
|
||
1
|
||
2 | Variable maxchars | Variable insert insert on
|
||
3
|
||
4 | : -text ( a1 a2 l -- 0=equal ) bounds
|
||
5 ?DO count I c@ - ?dup IF nip ENDLOOP exit THEN LOOP 0= ;
|
||
6
|
||
7 | : done ( a p1 -- a p2 ) 2dup
|
||
8 at? rot - span @ dup maxchars ! + at space blankline
|
||
9 line# @ @line span @ = IF span @ -text 0=exit 2dup THEN
|
||
10 drop lastline# @ !history 1 lastline# +line ;
|
||
11
|
||
12
|
||
13
|
||
14
|
||
15
|
||
Screen 4 not modified
|
||
0 \ enhanced input cas 10nov05
|
||
1 | : redisplay ( addr pos -- )
|
||
2 at? 2swap span @ swap /string type blankline at ;
|
||
3
|
||
4 | : del ( addr pos -- ) span @ 0=exit dup >r + dup 1+ swap
|
||
5 span @ r> - cmove -1 span +! ;
|
||
6 | : ins ( addr pos1 -- ) dup >r + dup dup 1+
|
||
7 span @ r> - cmove> bl swap c! 1 span +! ;
|
||
8
|
||
9 | : delete ( a p1 -- a p2 ) 2dup del 2dup redisplay ;
|
||
10 | : back ( a p1 -- a p2 ) 1- curleft delete ;
|
||
11
|
||
12 | : recall ( a p1 -- a p2 ) at? rot - at dup line# @ @history
|
||
13 dup 0 redisplay at? span @ + at span @ ;
|
||
14
|
||
15 | : <start ( a1 p1 -- a2 p2 ) at? rot - at 0 ;
|
||
Screen 5 not modified
|
||
0 \ Keyassignment for Commandline-Editor MS-DOS cas 10nov05
|
||
1
|
||
2 : (decode ( addr pos1 key -- addr pos2 )
|
||
3 -&77 case? IF dup span @ < 0=exit currite 1+ exit THEN
|
||
4 -&75 case? IF dup 0=exit curleft 1- exit THEN
|
||
5 -&82 case? IF insert @ 0= insert ! exit THEN
|
||
6 #bs case? IF dup 0=exit back exit THEN
|
||
7 -&83 case? IF span @ 2dup < and 0=exit delete exit THEN
|
||
8 -&72 case? IF -1 line# +line recall exit THEN
|
||
9 -&80 case? IF 1 line# +line recall exit THEN
|
||
10 #cr case? IF done exit THEN
|
||
11 #esc case? IF <start span off 2dup redisplay exit THEN
|
||
12 -&71 case? IF <start exit THEN
|
||
13 -&79 case? IF at? rot - span @ + at span @ exit THEN
|
||
14 dup emit >r insert @ IF 2dup ins THEN 2dup +
|
||
15 r> swap c! 1+ dup span @ max span ! 2dup redisplay ;
|
||
Screen 6 not modified
|
||
0 \ Patch cas 10nov05
|
||
1
|
||
2 : showcur ( -- )
|
||
3 insert @ IF &11 ELSE &6 THEN &12 curshape ;
|
||
4
|
||
5 : (expect ( addr len -- ) maxchars ! span off
|
||
6 lastline# @ line# ! 0
|
||
7 BEGIN span @ maxchars @ u<
|
||
8 WHILE key decode showcur REPEAT 2drop ;
|
||
9
|
||
10 ' (decode ' keyboard 6 + !
|
||
11 ' (expect ' keyboard 8 + !
|
||
12
|
||
13
|
||
14
|
||
15
|
||
Screen 7 not modified
|
||
0
|
||
1
|
||
2
|
||
3
|
||
4
|
||
5
|
||
6
|
||
7
|
||
8
|
||
9
|
||
10
|
||
11
|
||
12
|
||
13
|
||
14
|
||
15
|