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| 1 : | pazsan | 1.11 | \ command line edit and history support 16oct94py |
| 2 : | pazsan | 1.4 | |
| 3 : | anton | 1.50 | \ Copyright (C) 1995,2000,2003,2004,2005,2006 Free Software Foundation, Inc. |
| 4 : | anton | 1.8 | |
| 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 : | anton | 1.26 | \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| 20 : | anton | 1.8 | |
| 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 : | |||
| 32 : | pazsan | 1.27 | : bindkey ( xt key -- ) cells ctrlkeys + ! ; |
| 33 : | |||
| 34 : | pazsan | 1.11 | \ history support 16oct94py |
| 35 : | |||
| 36 : | anton | 1.13 | 0 Value history \ history file fid |
| 37 : | pazsan | 1.4 | |
| 38 : | 2Variable forward^ | ||
| 39 : | 2Variable backward^ | ||
| 40 : | 2Variable end^ | ||
| 41 : | |||
| 42 : | anton | 1.13 | : force-open ( addr len -- fid ) |
| 43 : | anton | 1.19 | 2dup r/w open-file |
| 44 : | IF | ||
| 45 : | drop r/w create-file throw | ||
| 46 : | ELSE | ||
| 47 : | nip nip | ||
| 48 : | THEN ; | ||
| 49 : | pazsan | 1.4 | |
| 50 : | anton | 1.29 | s" os-class" environment? [IF] s" unix" str= [ELSE] true [THEN] |
| 51 : | jwilke | 1.15 | [IF] |
| 52 : | pazsan | 1.16 | : history-file ( -- addr u ) |
| 53 : | pazsan | 1.14 | s" GFORTHHIST" getenv dup 0= IF |
| 54 : | 2drop s" ~/.gforth-history" | ||
| 55 : | pazsan | 1.16 | THEN ; |
| 56 : | jwilke | 1.15 | [ELSE] |
| 57 : | |||
| 58 : | pazsan | 1.16 | : history-dir ( -- addr u ) |
| 59 : | jwilke | 1.15 | s" TMP" getenv ?dup ?EXIT drop |
| 60 : | s" TEMP" getenv ?dup ?EXIT drop | ||
| 61 : | s" c:/" ; | ||
| 62 : | |||
| 63 : | pazsan | 1.16 | : history-file ( -- addr u ) |
| 64 : | jwilke | 1.15 | s" GFORTHHIST" getenv ?dup ?EXIT |
| 65 : | drop | ||
| 66 : | history-dir pad place | ||
| 67 : | pazsan | 1.16 | s" /ghist.fs" pad +place pad count ; |
| 68 : | [THEN] | ||
| 69 : | jwilke | 1.15 | |
| 70 : | pazsan | 1.4 | \ moving in history file 16oct94py |
| 71 : | |||
| 72 : | anton | 1.44 | defer back-restore ( u -- ) |
| 73 : | ' backspaces is back-restore | ||
| 74 : | |||
| 75 : | pazsan | 1.47 | [IFDEF] x-width |
| 76 : | pazsan | 1.4 | : clear-line ( max span addr pos1 -- max addr ) |
| 77 : | pazsan | 1.46 | back-restore over over swap x-width spaces swap back-restore ; |
| 78 : | pazsan | 1.47 | [ELSE] |
| 79 : | : clear-line ( max span addr pos1 -- max addr ) | ||
| 80 : | back-restore over spaces swap back-restore ; | ||
| 81 : | [THEN] | ||
| 82 : | anton | 1.41 | \ : clear-tib ( max span addr pos -- max 0 addr 0 false ) |
| 83 : | \ clear-line 0 tuck dup ; | ||
| 84 : | pazsan | 1.4 | |
| 85 : | pazsan | 1.32 | : hist-pos ( -- ud ) history file-position drop ( throw ) ; |
| 86 : | : hist-setpos ( ud -- ) history reposition-file drop ( throw ) ; | ||
| 87 : | pazsan | 1.4 | |
| 88 : | pazsan | 1.7 | : get-line ( addr len -- len' flag ) |
| 89 : | swap history read-line throw ; | ||
| 90 : | |||
| 91 : | pazsan | 1.4 | : next-line ( max span addr pos1 -- max span addr pos2 false ) |
| 92 : | clear-line | ||
| 93 : | pazsan | 1.7 | forward^ 2@ 2dup hist-setpos backward^ 2! |
| 94 : | 2dup get-line drop | ||
| 95 : | hist-pos forward^ 2! | ||
| 96 : | tuck 2dup type 0 ; | ||
| 97 : | pazsan | 1.4 | |
| 98 : | pazsan | 1.20 | : find-prev-line ( max addr -- max span addr pos2 ) |
| 99 : | backward^ 2@ forward^ 2! | ||
| 100 : | pazsan | 1.7 | over 2 + negate s>d backward^ 2@ d+ 0. dmax 2dup hist-setpos |
| 101 : | BEGIN | ||
| 102 : | backward^ 2! 2dup get-line WHILE | ||
| 103 : | hist-pos 2dup forward^ 2@ d< WHILE | ||
| 104 : | rot drop | ||
| 105 : | pazsan | 1.20 | REPEAT 2drop THEN tuck ; |
| 106 : | |||
| 107 : | : prev-line ( max span addr pos1 -- max span addr pos2 false ) | ||
| 108 : | clear-line find-prev-line 2dup type 0 ; | ||
| 109 : | pazsan | 1.4 | |
| 110 : | anton | 1.41 | \ Create lfpad #lf c, |
| 111 : | pazsan | 1.4 | |
| 112 : | : (enter) ( max span addr pos1 -- max span addr pos2 true ) | ||
| 113 : | pazsan | 1.7 | >r end^ 2@ hist-setpos |
| 114 : | pazsan | 1.32 | 2dup swap history write-line drop ( throw ) \ don't worry about errors |
| 115 : | pazsan | 1.7 | hist-pos 2dup backward^ 2! end^ 2! |
| 116 : | pazsan | 1.4 | r> (ret) ; |
| 117 : | |||
| 118 : | : extract-word ( addr len -- addr' len' ) dup >r | ||
| 119 : | BEGIN 1- dup 0>= WHILE 2dup + c@ bl = UNTIL THEN 1+ | ||
| 120 : | tuck + r> rot - ; | ||
| 121 : | |||
| 122 : | Create prefix-found 0 , 0 , | ||
| 123 : | |||
| 124 : | anton | 1.30 | : sgn ( n -- -1/0/1 ) |
| 125 : | dup 0= IF EXIT THEN 0< 2* 1+ ; | ||
| 126 : | |||
| 127 : | : capscomp ( c_addr1 u c_addr2 -- n ) | ||
| 128 : | swap bounds | ||
| 129 : | ?DO dup c@ I c@ <> | ||
| 130 : | IF dup c@ toupper I c@ toupper = | ||
| 131 : | ELSE true THEN WHILE 1+ LOOP drop 0 | ||
| 132 : | ELSE c@ toupper I c@ toupper - unloop THEN sgn ; | ||
| 133 : | |||
| 134 : | pazsan | 1.4 | : word-lex ( nfa1 nfa2 -- -1/0/1 ) |
| 135 : | anton | 1.9 | dup 0= |
| 136 : | IF | ||
| 137 : | 2drop 1 EXIT | ||
| 138 : | THEN | ||
| 139 : | name>string 2>r name>string | ||
| 140 : | dup r@ = | ||
| 141 : | IF | ||
| 142 : | rdrop r> capscomp 0<= EXIT | ||
| 143 : | THEN | ||
| 144 : | r> < | ||
| 145 : | nip rdrop ; | ||
| 146 : | pazsan | 1.4 | |
| 147 : | anton | 1.9 | : search-voc ( addr len nfa1 nfa2 -- addr len nfa3 ) |
| 148 : | >r | ||
| 149 : | BEGIN | ||
| 150 : | dup | ||
| 151 : | WHILE | ||
| 152 : | >r dup r@ name>string nip <= | ||
| 153 : | IF | ||
| 154 : | 2dup r@ name>string drop capscomp 0= | ||
| 155 : | IF | ||
| 156 : | r> dup r@ word-lex | ||
| 157 : | IF | ||
| 158 : | dup prefix-found @ word-lex | ||
| 159 : | 0>= | ||
| 160 : | IF | ||
| 161 : | rdrop dup >r | ||
| 162 : | THEN | ||
| 163 : | THEN | ||
| 164 : | >r | ||
| 165 : | pazsan | 1.7 | THEN |
| 166 : | anton | 1.9 | THEN |
| 167 : | r> @ | ||
| 168 : | REPEAT | ||
| 169 : | drop r> ; | ||
| 170 : | pazsan | 1.7 | |
| 171 : | pazsan | 1.35 | : prefix-off ( -- ) 0 0 prefix-found 2! ; |
| 172 : | |||
| 173 : | pazsan | 1.7 | : prefix-string ( addr len nfa -- addr' len' ) |
| 174 : | dup prefix-found ! ?dup | ||
| 175 : | anton | 1.9 | IF |
| 176 : | name>string rot /string rot drop | ||
| 177 : | pazsan | 1.7 | dup 1+ prefix-found cell+ ! |
| 178 : | ELSE | ||
| 179 : | pazsan | 1.35 | 2drop s" " prefix-off |
| 180 : | pazsan | 1.7 | THEN ; |
| 181 : | |||
| 182 : | : search-prefix ( addr1 len1 -- addr2 len2 ) | ||
| 183 : | 0 vp dup @ 1- cells over + | ||
| 184 : | DO I 2@ <> | ||
| 185 : | pazsan | 1.17 | IF I cell+ @ wordlist-id @ swap search-voc THEN |
| 186 : | pazsan | 1.7 | [ -1 cells ] Literal +LOOP |
| 187 : | prefix-string ; | ||
| 188 : | |||
| 189 : | : tib-full? ( max span addr pos addr' len' -- max span addr pos addr1 u flag ) | ||
| 190 : | 5 pick over 4 pick + prefix-found @ 0<> - < ; | ||
| 191 : | pazsan | 1.4 | |
| 192 : | : kill-prefix ( key -- key ) | ||
| 193 : | pazsan | 1.36 | dup #tab <> IF prefix-off THEN ; |
| 194 : | pazsan | 1.33 | |
| 195 : | \ UTF-8 support | ||
| 196 : | |||
| 197 : | anton | 1.38 | require utf-8.fs |
| 198 : | pazsan | 1.33 | |
| 199 : | anton | 1.39 | [IFUNDEF] #esc 27 Constant #esc [THEN] |
| 200 : | |||
| 201 : | pazsan | 1.51 | Variable curpos |
| 202 : | |||
| 203 : | : at-xy? ( -- x y ) | ||
| 204 : | key? drop | ||
| 205 : | #esc emit ." [6n" 0 0 | ||
| 206 : | BEGIN key dup 'R <> WHILE | ||
| 207 : | dup '; = IF drop swap ELSE | ||
| 208 : | dup '0 '9 1+ within IF '0 - swap 10 * + ELSE | ||
| 209 : | drop THEN THEN | ||
| 210 : | REPEAT drop 1- swap 1- ; | ||
| 211 : | : cursor@ ( -- n ) at-xy? form nip * + ; | ||
| 212 : | : cursor! ( n -- ) form nip /mod at-xy ; | ||
| 213 : | : cur-correct ( addr u -- ) x-width curpos @ + cursor@ - | ||
| 214 : | form nip >r r@ 2/ + r@ / r> * negate curpos +! ; | ||
| 215 : | |||
| 216 : | : save-cursor ( -- ) cursor@ curpos ! ; | ||
| 217 : | : restore-cursor ( -- ) curpos @ cursor! ; | ||
| 218 : | anton | 1.39 | : .rest ( addr pos1 -- addr pos1 ) |
| 219 : | pazsan | 1.51 | restore-cursor 2dup type 2dup cur-correct ; |
| 220 : | anton | 1.39 | : .all ( span addr pos1 -- span addr pos1 ) |
| 221 : | pazsan | 1.51 | restore-cursor >r 2dup swap type 2dup swap cur-correct r> ; |
| 222 : | anton | 1.44 | : xback-restore ( u -- ) |
| 223 : | drop restore-cursor ; | ||
| 224 : | |||
| 225 : | \ In the following, addr max is the buffer, addr span is the current | ||
| 226 : | \ string in the buffer, and pos1 is the cursor position in the buffer. | ||
| 227 : | anton | 1.39 | |
| 228 : | anton | 1.40 | : <xins> ( max span addr pos1 xc -- max span addr pos2 ) |
| 229 : | >r 2over r@ xc-size + u< IF ( max span addr pos1 R:xc ) | ||
| 230 : | rdrop bell EXIT THEN | ||
| 231 : | >string over r@ xc-size + swap move | ||
| 232 : | 2dup chars + r@ swap r@ xc-size xc!+? 2drop drop | ||
| 233 : | r> xc-size >r rot r@ chars + -rot r> chars + ; | ||
| 234 : | : (xins) ( max span addr pos1 xc -- max span addr pos2 ) | ||
| 235 : | pazsan | 1.51 | <xins> key? ?EXIT .all .rest ; |
| 236 : | anton | 1.40 | : xback ( max span addr pos1 -- max span addr pos2 f ) |
| 237 : | dup IF over + xchar- over - 0 max .all .rest | ||
| 238 : | anton | 1.39 | ELSE bell THEN 0 ; |
| 239 : | anton | 1.40 | : xforw ( max span addr pos1 -- max span addr pos2 f ) |
| 240 : | 2 pick over <> IF over + xc@+ xemit over - ELSE bell THEN 0 ; | ||
| 241 : | : (xdel) ( max span addr pos1 -- max span addr pos2 ) | ||
| 242 : | over + dup xchar- tuck - >r over - | ||
| 243 : | anton | 1.39 | >string over r@ + -rot move |
| 244 : | rot r> - -rot ; | ||
| 245 : | anton | 1.40 | : ?xdel ( max span addr pos1 -- max span addr pos2 0 ) |
| 246 : | dup IF (xdel) .all 2 spaces .rest THEN 0 ; | ||
| 247 : | : <xdel> ( max span addr pos1 -- max span addr pos2 0 ) | ||
| 248 : | anton | 1.39 | 2 pick over <> |
| 249 : | anton | 1.40 | IF xforw drop (xdel) .all 2 spaces .rest |
| 250 : | anton | 1.39 | ELSE bell THEN 0 ; |
| 251 : | anton | 1.40 | : xeof 2 pick over or 0= IF bye ELSE <xdel> THEN ; |
| 252 : | anton | 1.39 | |
| 253 : | anton | 1.40 | : xfirst-pos ( max span addr pos1 -- max span addr 0 0 ) |
| 254 : | anton | 1.39 | drop 0 .all .rest 0 ; |
| 255 : | anton | 1.40 | : xend-pos ( max span addr pos1 -- max span addr span 0 ) |
| 256 : | anton | 1.39 | drop over .all 0 ; |
| 257 : | |||
| 258 : | |||
| 259 : | anton | 1.40 | : xclear-line ( max span addr pos1 -- max addr ) |
| 260 : | anton | 1.39 | drop restore-cursor swap spaces restore-cursor ; |
| 261 : | anton | 1.40 | : xclear-tib ( max span addr pos -- max 0 addr 0 false ) |
| 262 : | xclear-line 0 tuck dup ; | ||
| 263 : | anton | 1.39 | |
| 264 : | anton | 1.40 | : (xenter) ( max span addr pos1 -- max span addr pos2 true ) |
| 265 : | anton | 1.39 | >r end^ 2@ hist-setpos |
| 266 : | 2dup swap history write-line drop ( throw ) \ don't worry about errors | ||
| 267 : | hist-pos 2dup backward^ 2! end^ 2! | ||
| 268 : | r> .all space true ; | ||
| 269 : | |||
| 270 : | anton | 1.40 | : xkill-expand ( max span addr pos1 -- max span addr pos2 ) |
| 271 : | anton | 1.39 | prefix-found cell+ @ ?dup IF >r |
| 272 : | r@ - >string over r@ + -rot move | ||
| 273 : | rot r@ - -rot .all r> spaces .rest THEN ; | ||
| 274 : | |||
| 275 : | : insert ( string length buffer size -- ) | ||
| 276 : | rot over min >r r@ - ( left over ) | ||
| 277 : | over dup r@ + rot move r> move ; | ||
| 278 : | |||
| 279 : | anton | 1.40 | : xtab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
| 280 : | key? IF #tab (xins) 0 EXIT THEN | ||
| 281 : | xkill-expand 2dup extract-word dup 0= IF nip EXIT THEN | ||
| 282 : | anton | 1.39 | search-prefix tib-full? |
| 283 : | anton | 1.40 | IF bell 2drop prefix-off |
| 284 : | anton | 1.39 | ELSE dup >r |
| 285 : | 2>r >string r@ + 2r> 2swap insert | ||
| 286 : | r@ + rot r> + -rot | ||
| 287 : | THEN | ||
| 288 : | anton | 1.40 | prefix-found @ IF bl (xins) ELSE .all .rest THEN 0 ; |
| 289 : | anton | 1.39 | |
| 290 : | anton | 1.40 | : xchar-history ( -- ) |
| 291 : | ['] xforw ctrl F bindkey | ||
| 292 : | ['] xback ctrl B bindkey | ||
| 293 : | ['] ?xdel ctrl H bindkey | ||
| 294 : | ['] xeof ctrl D bindkey | ||
| 295 : | ['] <xdel> ctrl X bindkey | ||
| 296 : | ['] xclear-tib ctrl K bindkey | ||
| 297 : | ['] xfirst-pos ctrl A bindkey | ||
| 298 : | ['] xend-pos ctrl E bindkey | ||
| 299 : | pazsan | 1.49 | history IF ['] (xenter) #lf bindkey THEN |
| 300 : | history IF ['] (xenter) #cr bindkey THEN | ||
| 301 : | anton | 1.40 | ['] xtab-expand #tab bindkey |
| 302 : | ['] (xins) IS insert-char | ||
| 303 : | anton | 1.39 | ['] kill-prefix IS everychar |
| 304 : | anton | 1.44 | ['] save-cursor IS everyline |
| 305 : | ['] xback-restore IS back-restore | ||
| 306 : | ; | ||
| 307 : | anton | 1.39 | |
| 308 : | anton | 1.40 | xchar-history |
| 309 : | anton | 1.19 | |
| 310 : | \ initializing history | ||
| 311 : | |||
| 312 : | : get-history ( addr len -- ) | ||
| 313 : | ['] force-open catch | ||
| 314 : | ?dup-if | ||
| 315 : | \ !! >stderr | ||
| 316 : | pazsan | 1.21 | \ history-file type ." : " .error cr |
| 317 : | pazsan | 1.49 | drop 2drop 0 to history |
| 318 : | anton | 1.19 | ['] false ['] false ['] (ret) |
| 319 : | else | ||
| 320 : | to history | ||
| 321 : | history file-size throw | ||
| 322 : | 2dup forward^ 2! 2dup backward^ 2! end^ 2! | ||
| 323 : | ['] next-line ['] prev-line ['] (enter) | ||
| 324 : | endif | ||
| 325 : | pazsan | 1.27 | dup #lf bindkey |
| 326 : | #cr bindkey | ||
| 327 : | ctrl P bindkey | ||
| 328 : | ctrl N bindkey | ||
| 329 : | anton | 1.19 | ; |
| 330 : | |||
| 331 : | : history-cold ( -- ) | ||
| 332 : | pazsan | 1.42 | history-file get-history xchar-history ; |
| 333 : | anton | 1.19 | |
| 334 : | anton | 1.48 | :noname ( -- ) |
| 335 : | defers 'cold | ||
| 336 : | history-cold | ||
| 337 : | ; is 'cold | ||
| 338 : | |||
| 339 : | anton | 1.19 | history-cold |
| 340 : |
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