Powered by ViewCVS 1.0-dev
| 1 : | pazsan | 1.3 | \ History file support 16oct94py |
| 2 : | |||
| 3 : | 0 Value history | ||
| 4 : | |||
| 5 : | 2Variable forward^ | ||
| 6 : | 2Variable backward^ | ||
| 7 : | 2Variable end^ | ||
| 8 : | |||
| 9 : | : get-history ( addr len -- wid ) | ||
| 10 : | 2dup r/w open-file 0< | ||
| 11 : | IF drop r/w create-file throw ELSE nip nip THEN | ||
| 12 : | to history | ||
| 13 : | history file-size throw | ||
| 14 : | 2dup forward^ 2! 2dup backward^ 2! end^ 2! ; | ||
| 15 : | |||
| 16 : | s" gforth.history" get-history | ||
| 17 : | |||
| 18 : | \ moving in history file 16oct94py | ||
| 19 : | |||
| 20 : | : clear-line ( max span addr pos1 -- max addr ) | ||
| 21 : | backspaces over spaces swap backspaces ; | ||
| 22 : | |||
| 23 : | : clear-tib ( max span addr pos -- max 0 addr 0 false ) | ||
| 24 : | clear-line 0 tuck dup ; | ||
| 25 : | |||
| 26 : | : get-line ( max addr -- max span addr pos dpos ) | ||
| 27 : | history file-position throw backward^ 2! | ||
| 28 : | 2dup swap history read-line throw drop | ||
| 29 : | 2dup type tuck | ||
| 30 : | history file-position throw forward^ 2! ; | ||
| 31 : | |||
| 32 : | : next-line ( max span addr pos1 -- max span addr pos2 false ) | ||
| 33 : | clear-line | ||
| 34 : | forward^ 2@ history reposition-file throw | ||
| 35 : | get-line 0 ; | ||
| 36 : | |||
| 37 : | : prev-line ( max span addr pos1 -- max span addr pos2 false ) | ||
| 38 : | clear-line over 2 + negate s>d backward^ 2@ d+ 0. dmax | ||
| 39 : | 2dup history reposition-file throw | ||
| 40 : | BEGIN 2over swap history read-line throw WHILE | ||
| 41 : | >r history file-position throw | ||
| 42 : | 2dup backward^ 2@ d< WHILE 2swap 2drop rdrop | ||
| 43 : | REPEAT ELSE >r history file-position throw THEN | ||
| 44 : | forward^ 2! backward^ 2! r> tuck 2dup type 0 ; | ||
| 45 : | |||
| 46 : | : ctrl ( "<char>" -- ctrl-code ) | ||
| 47 : | char [char] @ - postpone Literal ; immediate | ||
| 48 : | |||
| 49 : | Create lfpad #lf c, | ||
| 50 : | |||
| 51 : | : (enter) ( max span addr pos1 -- max span addr pos2 true ) | ||
| 52 : | >r end^ 2@ history reposition-file throw | ||
| 53 : | 2dup swap history write-file throw | ||
| 54 : | lfpad 1 history write-file throw | ||
| 55 : | history file-position throw 2dup backward^ 2! end^ 2! | ||
| 56 : | r> (ret) ; | ||
| 57 : | |||
| 58 : | \ some other key commands 16oct94py | ||
| 59 : | |||
| 60 : | : first-pos ( max span addr pos1 -- max span addr 0 0 ) | ||
| 61 : | backspaces 0 0 ; | ||
| 62 : | : end-pos ( max span addr pos1 -- max span addr span 0 ) | ||
| 63 : | type-rest 2drop over 0 ; | ||
| 64 : | |||
| 65 : | : extract-word ( addr len -- addr' len' ) dup >r | ||
| 66 : | BEGIN 1- dup 0>= WHILE 2dup + c@ bl = UNTIL THEN 1+ | ||
| 67 : | tuck + r> rot - ; | ||
| 68 : | |||
| 69 : | Create prefix-found 0 , 0 , | ||
| 70 : | |||
| 71 : | : word-lex ( nfa1 nfa2 -- -1/0/1 ) | ||
| 72 : | dup 0= IF 2drop 1 EXIT THEN | ||
| 73 : | cell+ >r cell+ count $1F and | ||
| 74 : | dup r@ c@ $1F and = | ||
| 75 : | IF r> char+ capscomp 0<= EXIT THEN | ||
| 76 : | nip r> c@ $1F and < ; | ||
| 77 : | |||
| 78 : | : search-prefix ( addr len1 -- suffix len2 ) 0 >r context | ||
| 79 : | BEGIN BEGIN dup @ over cell - @ = WHILE cell - REPEAT | ||
| 80 : | dup >r -rot r> @ @ | ||
| 81 : | BEGIN dup WHILE >r dup r@ cell+ c@ $1F and <= | ||
| 82 : | IF 2dup r@ cell+ char+ capscomp 0= | ||
| 83 : | IF r> dup r@ word-lex | ||
| 84 : | IF dup prefix-found @ word-lex | ||
| 85 : | 0>= IF rdrop dup >r THEN | ||
| 86 : | THEN >r | ||
| 87 : | THEN | ||
| 88 : | THEN r> @ | ||
| 89 : | REPEAT drop rot cell - dup vp u> 0= | ||
| 90 : | UNTIL drop r> dup prefix-found ! ?dup | ||
| 91 : | IF cell+ count $1F and rot /string rot drop | ||
| 92 : | ELSE 2drop s" " THEN ; | ||
| 93 : | |||
| 94 : | : tab-expand ( max span addr pos1 -- max span addr pos2 0 ) | ||
| 95 : | prefix-found cell+ @ 0 ?DO (del) LOOP | ||
| 96 : | 2dup extract-word search-prefix | ||
| 97 : | dup prefix-found @ 0<> - prefix-found cell+ ! | ||
| 98 : | bounds ?DO I c@ (ins) LOOP | ||
| 99 : | prefix-found @ IF bl (ins) THEN 0 ; | ||
| 100 : | |||
| 101 : | : kill-prefix ( key -- key ) | ||
| 102 : | dup #tab <> IF 0 0 prefix-found 2! THEN ; | ||
| 103 : | |||
| 104 : | ' kill-prefix IS everychar | ||
| 105 : | |||
| 106 : | ' next-line ctrl N cells ctrlkeys + ! | ||
| 107 : | ' prev-line ctrl P cells ctrlkeys + ! | ||
| 108 : | ' clear-tib ctrl K cells ctrlkeys + ! | ||
| 109 : | ' first-pos ctrl A cells ctrlkeys + ! | ||
| 110 : | ' end-pos ctrl E cells ctrlkeys + ! | ||
| 111 : | ' (enter) #lf cells ctrlkeys + ! | ||
| 112 : | ' (enter) #cr cells ctrlkeys + ! | ||
| 113 : | ' tab-expand #tab cells ctrlkeys + ! |
|
CVS Admin Powered by ViewCVS 1.0-dev |
ViewCVS and CVS Help |