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| 1 : | pazsan | 1.4 | \ History file support 16oct94py |
| 2 : | |||
| 3 : | 0 Value history | ||
| 4 : | |||
| 5 : | 2Variable forward^ | ||
| 6 : | 2Variable backward^ | ||
| 7 : | 2Variable end^ | ||
| 8 : | |||
| 9 : | pazsan | 1.7 | : force-open ( addr len -- handle ) |
| 10 : | 2dup r/w open-file 0< | ||
| 11 : | IF drop r/w create-file throw ELSE nip nip THEN ; | ||
| 12 : | |||
| 13 : | pazsan | 1.4 | : get-history ( addr len -- wid ) |
| 14 : | pazsan | 1.7 | force-open to history |
| 15 : | pazsan | 1.4 | history file-size throw |
| 16 : | 2dup forward^ 2! 2dup backward^ 2! end^ 2! ; | ||
| 17 : | |||
| 18 : | anton | 1.6 | s" ~/.gforth-history" get-history |
| 19 : | pazsan | 1.4 | |
| 20 : | anton | 1.6 | : history-cold |
| 21 : | Defers 'cold | ||
| 22 : | s" ~/.gforth-history" get-history ; | ||
| 23 : | pazsan | 1.4 | |
| 24 : | ' history-cold IS 'cold | ||
| 25 : | |||
| 26 : | \ moving in history file 16oct94py | ||
| 27 : | |||
| 28 : | : clear-line ( max span addr pos1 -- max addr ) | ||
| 29 : | backspaces over spaces swap backspaces ; | ||
| 30 : | |||
| 31 : | : clear-tib ( max span addr pos -- max 0 addr 0 false ) | ||
| 32 : | clear-line 0 tuck dup ; | ||
| 33 : | |||
| 34 : | pazsan | 1.7 | : hist-pos ( -- ud ) history file-position throw ; |
| 35 : | : hist-setpos ( ud -- ) history reposition-file throw ; | ||
| 36 : | pazsan | 1.4 | |
| 37 : | pazsan | 1.7 | : get-line ( addr len -- len' flag ) |
| 38 : | swap history read-line throw ; | ||
| 39 : | |||
| 40 : | pazsan | 1.4 | : next-line ( max span addr pos1 -- max span addr pos2 false ) |
| 41 : | clear-line | ||
| 42 : | pazsan | 1.7 | forward^ 2@ 2dup hist-setpos backward^ 2! |
| 43 : | 2dup get-line drop | ||
| 44 : | hist-pos forward^ 2! | ||
| 45 : | tuck 2dup type 0 ; | ||
| 46 : | pazsan | 1.4 | |
| 47 : | : prev-line ( max span addr pos1 -- max span addr pos2 false ) | ||
| 48 : | pazsan | 1.7 | clear-line backward^ 2@ forward^ 2! |
| 49 : | over 2 + negate s>d backward^ 2@ d+ 0. dmax 2dup hist-setpos | ||
| 50 : | BEGIN | ||
| 51 : | backward^ 2! 2dup get-line WHILE | ||
| 52 : | hist-pos 2dup forward^ 2@ d< WHILE | ||
| 53 : | rot drop | ||
| 54 : | REPEAT 2drop THEN | ||
| 55 : | tuck 2dup type 0 ; | ||
| 56 : | pazsan | 1.4 | |
| 57 : | : ctrl ( "<char>" -- ctrl-code ) | ||
| 58 : | char [char] @ - postpone Literal ; immediate | ||
| 59 : | |||
| 60 : | Create lfpad #lf c, | ||
| 61 : | |||
| 62 : | : (enter) ( max span addr pos1 -- max span addr pos2 true ) | ||
| 63 : | pazsan | 1.7 | >r end^ 2@ hist-setpos |
| 64 : | 2dup swap history write-line throw | ||
| 65 : | hist-pos 2dup backward^ 2! end^ 2! | ||
| 66 : | pazsan | 1.4 | r> (ret) ; |
| 67 : | |||
| 68 : | \ some other key commands 16oct94py | ||
| 69 : | |||
| 70 : | : first-pos ( max span addr pos1 -- max span addr 0 0 ) | ||
| 71 : | backspaces 0 0 ; | ||
| 72 : | : end-pos ( max span addr pos1 -- max span addr span 0 ) | ||
| 73 : | type-rest 2drop over 0 ; | ||
| 74 : | |||
| 75 : | : extract-word ( addr len -- addr' len' ) dup >r | ||
| 76 : | BEGIN 1- dup 0>= WHILE 2dup + c@ bl = UNTIL THEN 1+ | ||
| 77 : | tuck + r> rot - ; | ||
| 78 : | |||
| 79 : | Create prefix-found 0 , 0 , | ||
| 80 : | |||
| 81 : | : word-lex ( nfa1 nfa2 -- -1/0/1 ) | ||
| 82 : | dup 0= IF 2drop 1 EXIT THEN | ||
| 83 : | cell+ >r cell+ count $1F and | ||
| 84 : | dup r@ c@ $1F and = | ||
| 85 : | IF r> char+ capscomp 0<= EXIT THEN | ||
| 86 : | nip r> c@ $1F and < ; | ||
| 87 : | |||
| 88 : | pazsan | 1.7 | : search-voc ( addr len nfa1 nfa2 -- addr len nfa3 ) >r |
| 89 : | BEGIN dup WHILE >r dup r@ cell+ c@ $1F and <= | ||
| 90 : | IF 2dup r@ cell+ char+ capscomp 0= | ||
| 91 : | IF r> dup r@ word-lex | ||
| 92 : | IF dup prefix-found @ word-lex | ||
| 93 : | 0>= IF rdrop dup >r THEN | ||
| 94 : | THEN >r | ||
| 95 : | THEN | ||
| 96 : | THEN r> @ | ||
| 97 : | REPEAT drop r> ; | ||
| 98 : | |||
| 99 : | : prefix-string ( addr len nfa -- addr' len' ) | ||
| 100 : | dup prefix-found ! ?dup | ||
| 101 : | IF cell+ count $1F and rot /string rot drop | ||
| 102 : | dup 1+ prefix-found cell+ ! | ||
| 103 : | ELSE | ||
| 104 : | 2drop s" " prefix-found cell+ off | ||
| 105 : | THEN ; | ||
| 106 : | |||
| 107 : | : search-prefix ( addr1 len1 -- addr2 len2 ) | ||
| 108 : | 0 vp dup @ 1- cells over + | ||
| 109 : | DO I 2@ <> | ||
| 110 : | IF I cell+ @ @ swap search-voc THEN | ||
| 111 : | [ -1 cells ] Literal +LOOP | ||
| 112 : | prefix-string ; | ||
| 113 : | |||
| 114 : | : kill-expand ( max span addr pos1 -- max span addr pos2 ) | ||
| 115 : | prefix-found cell+ @ 0 ?DO (del) LOOP ; | ||
| 116 : | |||
| 117 : | : tib-full? ( max span addr pos addr' len' -- max span addr pos addr1 u flag ) | ||
| 118 : | 5 pick over 4 pick + prefix-found @ 0<> - < ; | ||
| 119 : | pazsan | 1.4 | |
| 120 : | : tab-expand ( max span addr pos1 -- max span addr pos2 0 ) | ||
| 121 : | pazsan | 1.7 | kill-expand 2dup extract-word search-prefix |
| 122 : | tib-full? | ||
| 123 : | IF 7 emit 2drop 0 0 prefix-found 2! | ||
| 124 : | ELSE bounds ?DO I c@ (ins) LOOP THEN | ||
| 125 : | prefix-found @ IF bl (ins) THEN 0 ; | ||
| 126 : | pazsan | 1.4 | |
| 127 : | : kill-prefix ( key -- key ) | ||
| 128 : | dup #tab <> IF 0 0 prefix-found 2! THEN ; | ||
| 129 : | |||
| 130 : | ' kill-prefix IS everychar | ||
| 131 : | |||
| 132 : | ' next-line ctrl N cells ctrlkeys + ! | ||
| 133 : | ' prev-line ctrl P cells ctrlkeys + ! | ||
| 134 : | ' clear-tib ctrl K cells ctrlkeys + ! | ||
| 135 : | ' first-pos ctrl A cells ctrlkeys + ! | ||
| 136 : | ' end-pos ctrl E cells ctrlkeys + ! | ||
| 137 : | ' (enter) #lf cells ctrlkeys + ! | ||
| 138 : | ' (enter) #cr cells ctrlkeys + ! | ||
| 139 : | ' tab-expand #tab cells ctrlkeys + ! |
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