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| 1 : | pazsan | 1.11 | \ command line edit and history support 16oct94py |
| 2 : | pazsan | 1.4 | |
| 3 : | anton | 1.8 | \ Copyright (C) 1995 Free Software Foundation, Inc. |
| 4 : | |||
| 5 : | \ This file is part of Gforth. | ||
| 6 : | |||
| 7 : | \ Gforth is free software; you can redistribute it and/or | ||
| 8 : | \ modify it under the terms of the GNU General Public License | ||
| 9 : | \ as published by the Free Software Foundation; either version 2 | ||
| 10 : | \ of the License, or (at your option) any later version. | ||
| 11 : | |||
| 12 : | \ This program is distributed in the hope that it will be useful, | ||
| 13 : | \ but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 : | \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 : | \ GNU General Public License for more details. | ||
| 16 : | |||
| 17 : | \ You should have received a copy of the GNU General Public License | ||
| 18 : | \ along with this program; if not, write to the Free Software | ||
| 19 : | \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 20 : | |||
| 21 : | pazsan | 1.11 | :noname |
| 22 : | char [char] @ - ; | ||
| 23 : | :noname | ||
| 24 : | char [char] @ - postpone Literal ; | ||
| 25 : | anton | 1.12 | interpret/compile: ctrl ( "<char>" -- ctrl-code ) |
| 26 : | pazsan | 1.11 | |
| 27 : | \ command line editing 16oct94py | ||
| 28 : | |||
| 29 : | : >string ( span addr pos1 -- span addr pos1 addr2 len ) | ||
| 30 : | over 3 pick 2 pick chars /string ; | ||
| 31 : | : type-rest ( span addr pos1 -- span addr pos1 back ) | ||
| 32 : | >string tuck type ; | ||
| 33 : | : (del) ( max span addr pos1 -- max span addr pos2 ) | ||
| 34 : | 1- >string over 1+ -rot move | ||
| 35 : | rot 1- -rot #bs emit type-rest bl emit 1+ backspaces ; | ||
| 36 : | : (ins) ( max span addr pos1 char -- max span addr pos2 ) | ||
| 37 : | >r >string over 1+ swap move 2dup chars + r> swap c! | ||
| 38 : | rot 1+ -rot type-rest 1- backspaces 1+ ; | ||
| 39 : | : ?del ( max span addr pos1 -- max span addr pos2 0 ) | ||
| 40 : | dup IF (del) THEN 0 ; | ||
| 41 : | : (ret) type-rest drop true space ; | ||
| 42 : | : back dup IF 1- #bs emit ELSE #bell emit THEN 0 ; | ||
| 43 : | : forw 2 pick over <> IF 2dup + c@ emit 1+ ELSE #bell emit THEN 0 ; | ||
| 44 : | : eof 2 pick over or 0= IF | ||
| 45 : | bye | ||
| 46 : | ELSE 2 pick over <> | ||
| 47 : | IF forw drop (del) ELSE #bell emit THEN 0 | ||
| 48 : | THEN ; | ||
| 49 : | |||
| 50 : | ' forw ctrl F cells ctrlkeys + ! | ||
| 51 : | ' back ctrl B cells ctrlkeys + ! | ||
| 52 : | ' ?del ctrl H cells ctrlkeys + ! | ||
| 53 : | ' eof ctrl D cells ctrlkeys + ! | ||
| 54 : | |||
| 55 : | ' (ins) IS insert-char | ||
| 56 : | |||
| 57 : | \ history support 16oct94py | ||
| 58 : | |||
| 59 : | anton | 1.13 | 0 Value history \ history file fid |
| 60 : | pazsan | 1.4 | |
| 61 : | 2Variable forward^ | ||
| 62 : | 2Variable backward^ | ||
| 63 : | 2Variable end^ | ||
| 64 : | |||
| 65 : | anton | 1.13 | : force-open ( addr len -- fid ) |
| 66 : | pazsan | 1.7 | 2dup r/w open-file 0< |
| 67 : | pazsan | 1.16 | IF drop r/w create-file |
| 68 : | throw ELSE nip nip THEN ; | ||
| 69 : | pazsan | 1.4 | |
| 70 : | jwilke | 1.15 | s" os-class" environment? [IF] s" unix" compare 0= [ELSE] true [THEN] |
| 71 : | [IF] | ||
| 72 : | pazsan | 1.16 | : history-file ( -- addr u ) |
| 73 : | pazsan | 1.14 | s" GFORTHHIST" getenv dup 0= IF |
| 74 : | 2drop s" ~/.gforth-history" | ||
| 75 : | pazsan | 1.16 | THEN ; |
| 76 : | jwilke | 1.15 | [ELSE] |
| 77 : | |||
| 78 : | pazsan | 1.16 | : history-dir ( -- addr u ) |
| 79 : | jwilke | 1.15 | s" TMP" getenv ?dup ?EXIT drop |
| 80 : | s" TEMP" getenv ?dup ?EXIT drop | ||
| 81 : | s" c:/" ; | ||
| 82 : | |||
| 83 : | pazsan | 1.16 | : history-file ( -- addr u ) |
| 84 : | jwilke | 1.15 | s" GFORTHHIST" getenv ?dup ?EXIT |
| 85 : | drop | ||
| 86 : | history-dir pad place | ||
| 87 : | pazsan | 1.16 | s" /ghist.fs" pad +place pad count ; |
| 88 : | [THEN] | ||
| 89 : | jwilke | 1.15 | |
| 90 : | pazsan | 1.16 | : get-history ( addr len -- ) |
| 91 : | ['] force-open catch | ||
| 92 : | dup 0< IF ." can't open " history-file type cr throw THEN drop | ||
| 93 : | to history | ||
| 94 : | history file-size throw | ||
| 95 : | 2dup forward^ 2! 2dup backward^ 2! end^ 2! ; | ||
| 96 : | |||
| 97 : | : history-cold ( -- ) | ||
| 98 : | history-file get-history ; | ||
| 99 : | pazsan | 1.4 | |
| 100 : | jwilke | 1.15 | ' history-cold INIT8 chained |
| 101 : | history-cold | ||
| 102 : | pazsan | 1.4 | |
| 103 : | \ moving in history file 16oct94py | ||
| 104 : | |||
| 105 : | : clear-line ( max span addr pos1 -- max addr ) | ||
| 106 : | backspaces over spaces swap backspaces ; | ||
| 107 : | |||
| 108 : | : clear-tib ( max span addr pos -- max 0 addr 0 false ) | ||
| 109 : | clear-line 0 tuck dup ; | ||
| 110 : | |||
| 111 : | pazsan | 1.7 | : hist-pos ( -- ud ) history file-position throw ; |
| 112 : | : hist-setpos ( ud -- ) history reposition-file throw ; | ||
| 113 : | pazsan | 1.4 | |
| 114 : | pazsan | 1.7 | : get-line ( addr len -- len' flag ) |
| 115 : | swap history read-line throw ; | ||
| 116 : | |||
| 117 : | pazsan | 1.4 | : next-line ( max span addr pos1 -- max span addr pos2 false ) |
| 118 : | clear-line | ||
| 119 : | pazsan | 1.7 | forward^ 2@ 2dup hist-setpos backward^ 2! |
| 120 : | 2dup get-line drop | ||
| 121 : | hist-pos forward^ 2! | ||
| 122 : | tuck 2dup type 0 ; | ||
| 123 : | pazsan | 1.4 | |
| 124 : | : prev-line ( max span addr pos1 -- max span addr pos2 false ) | ||
| 125 : | pazsan | 1.7 | clear-line backward^ 2@ forward^ 2! |
| 126 : | over 2 + negate s>d backward^ 2@ d+ 0. dmax 2dup hist-setpos | ||
| 127 : | BEGIN | ||
| 128 : | backward^ 2! 2dup get-line WHILE | ||
| 129 : | hist-pos 2dup forward^ 2@ d< WHILE | ||
| 130 : | rot drop | ||
| 131 : | REPEAT 2drop THEN | ||
| 132 : | tuck 2dup type 0 ; | ||
| 133 : | pazsan | 1.4 | |
| 134 : | Create lfpad #lf c, | ||
| 135 : | |||
| 136 : | : (enter) ( max span addr pos1 -- max span addr pos2 true ) | ||
| 137 : | pazsan | 1.7 | >r end^ 2@ hist-setpos |
| 138 : | 2dup swap history write-line throw | ||
| 139 : | hist-pos 2dup backward^ 2! end^ 2! | ||
| 140 : | pazsan | 1.4 | r> (ret) ; |
| 141 : | |||
| 142 : | \ some other key commands 16oct94py | ||
| 143 : | |||
| 144 : | : first-pos ( max span addr pos1 -- max span addr 0 0 ) | ||
| 145 : | backspaces 0 0 ; | ||
| 146 : | : end-pos ( max span addr pos1 -- max span addr span 0 ) | ||
| 147 : | type-rest 2drop over 0 ; | ||
| 148 : | |||
| 149 : | : extract-word ( addr len -- addr' len' ) dup >r | ||
| 150 : | BEGIN 1- dup 0>= WHILE 2dup + c@ bl = UNTIL THEN 1+ | ||
| 151 : | tuck + r> rot - ; | ||
| 152 : | |||
| 153 : | Create prefix-found 0 , 0 , | ||
| 154 : | |||
| 155 : | : word-lex ( nfa1 nfa2 -- -1/0/1 ) | ||
| 156 : | anton | 1.9 | dup 0= |
| 157 : | IF | ||
| 158 : | 2drop 1 EXIT | ||
| 159 : | THEN | ||
| 160 : | name>string 2>r name>string | ||
| 161 : | dup r@ = | ||
| 162 : | IF | ||
| 163 : | rdrop r> capscomp 0<= EXIT | ||
| 164 : | THEN | ||
| 165 : | r> < | ||
| 166 : | nip rdrop ; | ||
| 167 : | pazsan | 1.4 | |
| 168 : | anton | 1.9 | : search-voc ( addr len nfa1 nfa2 -- addr len nfa3 ) |
| 169 : | >r | ||
| 170 : | BEGIN | ||
| 171 : | dup | ||
| 172 : | WHILE | ||
| 173 : | >r dup r@ name>string nip <= | ||
| 174 : | IF | ||
| 175 : | 2dup r@ name>string drop capscomp 0= | ||
| 176 : | IF | ||
| 177 : | r> dup r@ word-lex | ||
| 178 : | IF | ||
| 179 : | dup prefix-found @ word-lex | ||
| 180 : | 0>= | ||
| 181 : | IF | ||
| 182 : | rdrop dup >r | ||
| 183 : | THEN | ||
| 184 : | THEN | ||
| 185 : | >r | ||
| 186 : | pazsan | 1.7 | THEN |
| 187 : | anton | 1.9 | THEN |
| 188 : | r> @ | ||
| 189 : | REPEAT | ||
| 190 : | drop r> ; | ||
| 191 : | pazsan | 1.7 | |
| 192 : | : prefix-string ( addr len nfa -- addr' len' ) | ||
| 193 : | dup prefix-found ! ?dup | ||
| 194 : | anton | 1.9 | IF |
| 195 : | name>string rot /string rot drop | ||
| 196 : | pazsan | 1.7 | dup 1+ prefix-found cell+ ! |
| 197 : | ELSE | ||
| 198 : | 2drop s" " prefix-found cell+ off | ||
| 199 : | THEN ; | ||
| 200 : | |||
| 201 : | : search-prefix ( addr1 len1 -- addr2 len2 ) | ||
| 202 : | 0 vp dup @ 1- cells over + | ||
| 203 : | DO I 2@ <> | ||
| 204 : | IF I cell+ @ @ swap search-voc THEN | ||
| 205 : | [ -1 cells ] Literal +LOOP | ||
| 206 : | prefix-string ; | ||
| 207 : | |||
| 208 : | : kill-expand ( max span addr pos1 -- max span addr pos2 ) | ||
| 209 : | prefix-found cell+ @ 0 ?DO (del) LOOP ; | ||
| 210 : | |||
| 211 : | : tib-full? ( max span addr pos addr' len' -- max span addr pos addr1 u flag ) | ||
| 212 : | 5 pick over 4 pick + prefix-found @ 0<> - < ; | ||
| 213 : | pazsan | 1.4 | |
| 214 : | : tab-expand ( max span addr pos1 -- max span addr pos2 0 ) | ||
| 215 : | pazsan | 1.7 | kill-expand 2dup extract-word search-prefix |
| 216 : | tib-full? | ||
| 217 : | IF 7 emit 2drop 0 0 prefix-found 2! | ||
| 218 : | ELSE bounds ?DO I c@ (ins) LOOP THEN | ||
| 219 : | prefix-found @ IF bl (ins) THEN 0 ; | ||
| 220 : | pazsan | 1.4 | |
| 221 : | : kill-prefix ( key -- key ) | ||
| 222 : | dup #tab <> IF 0 0 prefix-found 2! THEN ; | ||
| 223 : | |||
| 224 : | ' kill-prefix IS everychar | ||
| 225 : | |||
| 226 : | ' next-line ctrl N cells ctrlkeys + ! | ||
| 227 : | ' prev-line ctrl P cells ctrlkeys + ! | ||
| 228 : | ' clear-tib ctrl K cells ctrlkeys + ! | ||
| 229 : | ' first-pos ctrl A cells ctrlkeys + ! | ||
| 230 : | ' end-pos ctrl E cells ctrlkeys + ! | ||
| 231 : | ' (enter) #lf cells ctrlkeys + ! | ||
| 232 : | ' (enter) #cr cells ctrlkeys + ! | ||
| 233 : | ' tab-expand #tab cells ctrlkeys + ! |
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