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