Screen 0 not modified 0 \ Full-Screen Editor UH 02Nov86 1 2 Dieses File enthaelt den Full-Screen Editor fuer die CP/M - 3 volksFORTH-Version. 4 5 Er enthaelt Line- und Chararcter-Stacks, Find&Replace-Funktion 6 sowie Unterstuetzung des Shadow-Screen-Konzepts, der view- 7 Funktion und des sichtbaren Laden von Screens (showload). 8 9 Durch die integrierte Tastaturtabelle (keytable) laesst sich die 10 Kommandobelegung der Tasten auf einfache Art und Weise aendern. 11 12 Anregungen, Kritik und Verbesserungsvorschlaege bitte an: 13 U. Hoffmann 14 Harmsstrasse 71 15 2300 Kiel Screen 1 not modified 0 \ Load Screen for the Editor UH 03Nov86 UH 27Nov87 1 2 Onlyforth cr 3 4 1 $1E +thru 5 6 Onlyforth 7 8 9 10 11 12 13 14 15 Screen 2 not modified 0 \ String primitves 27Nov87 1 2 : delete ( buffer size count -- ) 3 over umin dup >r - 2dup over r@ + -rot cmove 4 + r> bl fill ; 5 6 : insert ( string length buffer size -- ) 7 rot over umin dup >r - 8 over dup r@ + rot cmove> r> cmove ; 9 10 : replace ( string length buffer size -- ) rot umin cmove ; 11 12 13 14 15 Screen 3 not modified 0 \ usefull definitions and Editor vocabulary UH 27Nov87 1 2 : blank ( addr len -- ) bl fill ; 3 4 : ?enough ( n --) depth 1- > abort" Not enough Parameters" ; 5 6 : ?abort( ( f -- ) 7 IF [compile] .( true abort" !" THEN [compile] ( ; 8 9 Vocabulary Editor 10 11 ' Forth | Alias F: immediate 12 ' Editor | Alias E: immediate 13 14 Editor also definitions 15 Screen 4 not modified 0 \ move cursor with position-checking 23Nov86 1 2 | : c ( n --) \ checks the cursor position 3 r# @ + dup 0 b/blk uwithin not 4 Abort" There is a border!" r# ! ; 5 6 \\ 7 8 : c ( n --) \ goes thru the screens 9 r# @ + dup b/blk 1- > IF 1 scr +! THEN 10 dup 0< IF -1 scr +! THEN b/blk mod r# ! ; 11 12 : c ( n --) \ moves cyclic thru the screen 13 r# @ + b/blk mod r# ! ; 14 15 Screen 5 not modified 0 \ calculate addresses UH 31Oct86 1 2 | Code *line ( l -- adr ) 3 H pop H dad H dad H dad 4 H dad H dad H dad Hpush jmp end-code 5 6 | Code /line ( n -- c l ) 7 H pop L A mov $3F ani A E mov 0 D mvi 8 L A mov ral A L mov H A mov ral A H mov 9 L A mov ral A L mov H A mov ral A H mov 10 L A mov ral 3 ani H L mov A H mov 11 dpush jmp end-code 12 13 \\ 14 | : *line ( l -- adr ) c/l * ; 15 | : /line ( n -- c l ) c/l /mod ; Screen 6 not modified 0 \ calculate addresses UH 01Nov86 1 2 | : top ( -- ) r# off ; 3 | : cursor ( -- n ) r# @ ; 4 | : 'start ( -- adr ) scr @ block ; 5 | : 'end ( -- adr ) 'start b/blk + ; 6 | : 'cursor ( -- adr ) 'start cursor + ; 7 | : position ( -- c l ) cursor /line ; 8 | : line# ( -- l ) position nip ; 9 | : col# ( -- c ) position drop ; 10 | : 'line ( -- adr ) 'start line# *line + ; 11 | : 'line-end ( -- adr ) 'line c/l + 1- ; 12 | : #after ( -- n ) c/l col# - ; 13 | : #remaining ( -- n ) b/blk cursor - ; 14 | : #end ( -- n ) b/blk line# *line - ; 15 Screen 7 not modified 0 \ move cursor directed UH 01Nov86 1 2 | : curup c/l negate c ; 3 | : curdown c/l c ; 4 | : curleft -1 c ; 5 | : curright 1 c ; 6 7 | : +tab \ 1/4 line forth 8 cursor $10 / 1+ $10 * cursor - c ; 9 10 | : -tab \ 1/8 line back 11 cursor 8 mod negate dup 0= 8 * + c ; 12 13 | : >""end 'start b/blk -trailing nip b/blk 1- min r# ! ; 14 | : #after c ; 15 Screen 8 not modified 0 \ show border UH 27Nov87 1 &15 | Constant dx 1 | Constant dy 2 3 | : horizontal ( row -- row' ) 4 dup dx 1- at c/l 2+ 0 DO Ascii - emit LOOP 1+ ; 5 6 | : vertical ( row -- row' ) 7 l/s 0 DO dup dx 1- at Ascii | emit 8 row dx c/l + at Ascii | emit 1+ LOOP ; 9 10 | : border dy 1- horizontal vertical horizontal drop ; 11 12 | : edit-at ( -- ) position swap dy dx d+ at ; 13 14 Forth definitions 15 : updated? ( -- f) scr @ block 2- @ 0< ; Screen 9 not modified 0 \ display screen UH 02Nov86 UH 27Nouho 1 Editor definitions | Variable isfile' | Variable imode 2 3 | : .updated ( -- ) 7 0 at 4 updated? IF 4 spaces ELSE ." not " THEN ." updated" ; 5 6 | : redisplay ( line# -- ) 7 dup dy + dx at *line 'start + c/l type ; 8 9 | : .file ( 'file -- ) [ Dos ] .file &14 col - 0 max spaces ; 10 | : .title 1 0 at isfile@ .file 3 0 at isfile' @ .file 11 5 0 at ." Scr# " scr @ 4 .r .updated &10 0 at 12 imode @ IF ." insert " exit THEN ." overwrite" ; 13 14 | : .screen l/s 0 DO I redisplay LOOP ; 15 | : .all .title .screen ; Screen 10 not modified 0 \ check errors UH 02Nov86 1 2 | : ?bottom ( -- ) 'end c/l - c/l -trailing nip 3 Abort" You would lose a line" ; 4 5 | : ?fit ( n -- ) 'line c/l -trailing nip + c/l > 6 IF line# redisplay 7 true Abort" You would lose a char" THEN ; 8 9 | : ?end 1 ?fit ; 10 11 12 13 14 15 Screen 11 not modified 0 \ programmer's id UH 02Nov86 1 2 $12 | Constant id-len 3 Create id id-len allot id id-len erase 4 5 | : stamp ( -- ) 6 id 1+ count 'start c/l + over - swap cmove ; 7 8 | : ?stamp ( -- ) updated? IF stamp THEN ; 9 10 | : get-id ( -- ) 11 id c@ ?exit id on 12 cr ." Enter your ID : " at? $10 0 DO Ascii . emit LOOP at 13 id id-len 2 /string expect rvsoff span @ id 1+ c! ; 14 15 Screen 12 not modified 0 \ update screen-display UH 02Dec86 1 2 | : emptybuf prev @ 2+ dup on 4+ off ; 3 4 | : undo emptybuf .all ; 5 6 | : modified updated? ?exit update .updated ; 7 8 | : linemodified modified line# redisplay ; 9 10 | : screenmodified modified 11 l/s line# ?DO I redisplay LOOP ; 12 13 | : .modified ( -- ) dy l/s + 4+ 0 at scr @ . 14 updated? not IF ." un" THEN ." modified" ?stamp ; 15 Screen 13 not modified 0 \ leave editor UH 02Dec86 UH 23Feb88 1 | Variable (pad (pad off 2 | : memtop ( -- adr) sp@ $100 - ; 3 4 | Create char 1 allot 5 6 ( | Variable imode ) imode off 7 | : setimode imode on .title ; 8 | : clrimode imode off .title ; 9 | : flipimode ( -- ) imode @ 0= imode ! .title ; 10 11 | : done ( -- ) 12 ['] (quit is 'quit ['] (error errorhandler ! quit ; 13 14 | : update-exit ( -- ) .modified done ; 15 | : flushed-exit ( -- ) .modified save-buffers done ; Screen 14 not modified 0 \ handle lines UH 01Nov86 1 2 | : (clear-line 'line c/l blank ; 3 | : clear-line (clear-line linemodified ; 4 5 | : clear> 'cursor #after blank linemodified ; 6 7 | : delete-line 'line #end c/l delete screenmodified ; 8 9 | : backline curup delete-line ; 10 11 | : (insert-line 12 ?bottom 'line c/l over #end insert (clear-line ; 13 14 | : insert-line (insert-line screenmodified ; 15 Screen 15 not modified 0 \ handle characters UH 01Nov86 1 2 | : delete-char 'cursor #after 1 delete linemodified ; 3 4 | : backspace curleft delete-char ; 5 6 | : (insert-char ?end 'cursor 1 over #after insert ; 7 8 9 | : insert-char (insert-char bl 'cursor c! linemodified ; 10 11 | : putchar ( --) char c@ 12 imode @ IF (insert-char THEN 13 'cursor c! linemodified curright ; 14 15 Screen 16 not modified 0 \ stack lines UH 31Oct86 1 2 | Create lines 4 allot \ { 2+pointer | 2base } 3 | : 'lines ( -- adr) lines 2@ + ; 4 5 | : @line 'lines memtop u> Abort" line buffer full" 6 'line 'lines c/l cmove c/l lines +! ; 7 8 | : copyline @line curdown ; 9 | : line>buf @line delete-line ; 10 11 | : !line c/l negate lines +! 'lines 'line c/l cmove ; 12 13 | : buf>line lines @ 0= Abort" line buffer empty" 14 ?bottom (insert-line !line screenmodified ; 15 Screen 17 not modified 0 \ stack characters UH 01Nov86 1 2 | Create chars 4 allot \ { 2+pointer | 2base } 3 | : 'chars ( -- adr) chars 2@ + ; 4 5 | : @char 'chars 1- lines 2+ @ u> Abort" char buffer full" 6 'cursor c@ 'chars c! 1 chars +! ; 7 8 | : copychar @char curright ; 9 | : char>buf @char delete-char ; 10 11 | : !char -1 chars +! 'chars c@ 'cursor c! ; 12 13 | : buf>char chars @ 0= Abort" char buffer empty" 14 ?end (insert-char !char linemodified ; 15 Screen 18 not modified 0 \ switch screens UH 03Nov86 UH 27Nov87 1 2 | Variable r#' r#' off 3 | Variable scr' scr' off 4 ( | Variable isfile' ) isfile@ isfile' ! 5 6 | : associate \ switch to alternate screen 7 isfile' @ isfile@ isfile' ! isfile ! 8 scr' @ scr @ scr' ! scr ! r#' @ r# @ r#' ! r# ! ; 9 10 | : mark isfile@ isfile' ! scr @ scr' ! r# @ r#' ! .title ; 11 | : n ?stamp 1 scr +! .all ; 12 | : b ?stamp -1 scr +! .all ; 13 | : a ?stamp associate .all ; 14 15 Screen 19 not modified 0 \ shadow screens UH 03Nov86 1 2 Variable shadow shadow off 3 4 | : (shadow isfile@ IF capacity 2/ exit THEN shadow @ ; 5 6 | : >shadow ?stamp \ switch to shadow screen 7 (shadow dup scr @ u> not IF negate THEN scr +! .all ; 8 9 10 11 12 13 14 15 Screen 20 not modified 0 \ load and show screens UH 06Mar88 1 2 ' name >body &10 + | Constant 'name 3 4 | : showoff ['] exit 'name ! curoff rvsoff ; 5 6 | : show ( -- ) blk @ 0= IF showoff exit THEN 7 >in @ 1- r# ! curoff edit-at curon 8 stop? IF showoff true Abort" Break! " THEN 9 blk @ scr @ - 10 IF blk @ scr ! rvsoff curoff .all rvson curon THEN ; 11 12 | : showload ( -- ) ?stamp save-buffers 13 ['] show 'name ! curon rvson 14 ['] .status >body push ['] noop is .status 15 scr @ scr push scr off r# push r# @ (load showoff ; Screen 21 not modified 0 \ find strings UH 01Nov86 1 2 | Variable insert-buffer 3 | Variable find-buffer 4 | : 'insert ( -- addr ) insert-buffer @ ; 5 | : 'find ( -- addr ) find-buffer @ ; 6 7 | : .buf ( addr -- ) count type ." |" &80 col - spaces ; 8 9 | : get ( addr -- ) >r at? r@ .buf 10 2dup at r@ 1+ c/l expect span @ ?dup IF r@ c! THEN 11 at r> .buf ; 12 13 | : get-buffers dy l/s + 2+ dx 1- 2dup at 14 ." find: |" 'find get swap 1+ swap 2- at 15 ." ? replace: |" 'insert get ; Screen 22 not modified 0 \ search for string UH 02Nov86 UH 27Nov87 1 2 | : skip ( addr -- addr' ) 'find c@ + ; 3 4 | : find? ( -- addr T | F ) 5 'find count 'cursor #remaining "search ; 6 7 | : "find ( -- r# scr ) 8 find? IF skip 'start - scr @ exit THEN ?stamp 9 capacity scr @ 1+ 10 ?DO 'find count 11 I dup 5 5 at 4 .r block b/blk "search 12 IF skip I block - I endloop exit THEN 13 stop? Abort" Break! " 14 LOOP true Abort" not found!" ; 15 Screen 23 not modified 0 \ replace strings UH 03Nov86 UH 27Nov87 1 | : replace? ( -- f ) dy l/s + 3+ dx 3 - at 2 key dup #cr = IF line# redisplay true Abort" Break!" THEN 3 capital Ascii R = ; 4 5 | : "mark ( -- ) r# push 6 'find count dup negate c edit-at rvson type rvsoff ; 7 8 | : (replace 'insert c@ 'find c@ - ?fit 9 'find c@ negate c 'cursor #after 'find c@ delete 10 'insert count 'cursor #after insert 11 'insert c@ c modified ; 12 13 | : "replace get-buffers 14 BEGIN "find dup scr @ - swap scr ! IF .all THEN r# ! 15 "mark replace? IF (replace THEN line# redisplay REPEAT ; Screen 24 not modified 0 \ Control-Characters 'normal' CP/M uho 08May2005 1 2 Forth definitions 3 4 : Ctrl ( -- c ) 5 name 1+ c@ $1F and state @ IF [compile] Literal THEN ; 6 immediate 7 8 $7F Constant #del 9 10 Editor definitions 11 12 \ | : flipimode imode @ 0= imode ! ; 13 14 15 Screen 25 not modified 0 \ Try a Screen-Editor 'normal' CP/M UH 29Nov86 1 2 Create keytable 3 Ctrl E c, Ctrl S c, Ctrl X c, Ctrl D c, 4 Ctrl I c, Ctrl J c, Ctrl O c, Ctrl K c, 5 Ctrl P c, Ctrl L c, 6 Ctrl H c, Ctrl H c, #del c, Ctrl G c, 7 Ctrl T c, Ctrl Y c, Ctrl N c, 8 Ctrl V c, Ctrl Z c, 9 #cr c, Ctrl F c, Ctrl A c, 10 Ctrl \ c, Ctrl U c, 11 Ctrl Q c, #esc c, Ctrl W c, 12 Ctrl C c, Ctrl R c, Ctrl ] c, Ctrl B c, 13 14 15 here keytable - Constant #keys Screen 26 not modified 0 \ Try a screen Editor UH 29Nov86 1 2 Create: actiontable 3 curup curleft curdown curright 4 line>buf char>buf buf>line buf>char 5 copyline copychar 6 backspace backspace backspace delete-char 7 insert-char delete-line insert-line 8 flipimode ( clear-line ) clear> 9 +tab -tab 10 ( top >""end ) "replace undo 11 update-exit flushed-exit ( showload ) >shadow 12 n b a mark ; 13 14 15 here actiontable - 2/ 1- #keys - ?abort( # of actions) Screen 27 not modified 0 \ find keys UH 01Nov86 1 2 | Code findkey ( key -- addr/default ) 3 H pop L A mov keytable H lxi #keys $100 * D lxi 4 [[ M cmp 0= 5 ?[ actiontable H lxi 0 D mvi D dad D dad 6 M E mov H inx M D mov D push next ]? 7 H inx E inr D dcr 0= ?] 8 ' putchar H lxi hpush jmp 9 end-code 10 11 \\ 12 | : findkey ( key -- adr/default ) 13 #keys 0 DO dup keytable F: I + c@ = 14 IF drop E: actiontable F: I 2* + @ endloop exit THEN 15 LOOP drop ['] putchar ; Screen 28 not modified 0 \ allocate buffers UH 01Nov86 1 2 c/l 2* | Constant cstack-size 3 4 | : nextbuf ( adr -- adr' ) cstack-size + ; 5 6 | : ?clearbuffer pad (pad @ = ?exit 7 pad dup (pad ! 8 nextbuf dup find-buffer ! 'find off 9 nextbuf dup insert-buffer ! 'insert off 10 nextbuf dup 0 chars 2! 11 nextbuf 0 lines 2! ; 12 13 14 15 Screen 29 not modified 0 \ enter and exit the editor, editor's loop UH 02Nov86 1 | Variable jingle jingle on | : bell 07 con! jingle off ; 2 3 | : clear-error 4 jingle @ ?exit dy l/s + 1+ dx at c/l spaces jingle on ; 5 6 | : fullquit BEGIN ?clearbuffer edit-at key dup char c! 7 findkey execute clear-error REPEAT ; 8 9 | : fullerror ( string --) jingle @ IF bell THEN 10 dy l/s + 1+ dx $16 + at rvson count type rvsoff 11 &80 col - spaces scr @ capacity 1- min 0 max scr ! 12 .title quit ; 13 14 | : install ( -- ) 15 ['] fullquit Is 'quit ['] fullerror errorhandler ! ; Screen 30 not modified 0 \ enter and exit the Editor UH 02Nov86 1 2 Forth definitions 3 4 : v ( -- ) E: 'start drop get-id install ?clearbuffer 5 page curoff border .all quit ; 6 7 : l ( scr -- ) 1 ?enough scr ! E: top F: v ; 8 9 10 11 12 13 14 15 Screen 31 not modified 0 \ savesystem uho 09May2uho 1 2 : savesystem \ save image 3 E: id off (pad off savesystem ; 4 5 | : >find ?clearbuffer >in push 6 bl word count 'find 1+ place 7 bl 'find 1+ dup >r count dup >r + c! 8 r> 2+ 'find c! bl r> c! ; 9 | : %view ( -- ) >find ' >name 4- @ (view 10 ?dup 0= Abort" hand made" scr ! 11 E: top curdown find? 0= 12 IF ." From Scr # " scr @ u. true Abort" wrong file" THEN 13 skip 'start - 1- r# ! ; 14 : view ( -- ) %view scr @ list ; 15 : fix ( -- ) %view v ;