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| 1 : | anton | 1.1 | \ ekey etc. |
| 2 : | |||
| 3 : | anton | 1.18 | \ Copyright (C) 1999,2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc. |
| 4 : | anton | 1.1 | |
| 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 | 1.3 | \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| 20 : | anton | 1.1 | |
| 21 : | |||
| 22 : | \ this implementation of EKEY just translates VT100/ANSI escape | ||
| 23 : | \ sequences to ekeys. | ||
| 24 : | |||
| 25 : | \ Caveats: It also translates the sequences if they were not generated | ||
| 26 : | \ by pressing the key; moreover, it waits until a complete sequence or | ||
| 27 : | \ an invalid prefix to a sequence has arrived before reporting true in | ||
| 28 : | \ EKEY? and before completing EKEY. One way to fix this would be to | ||
| 29 : | \ use timeouts when waiting for the next key; however, this may lead | ||
| 30 : | \ to situations in slow networks where single events result in several | ||
| 31 : | \ EKEYs, which appears less desirable to me. | ||
| 32 : | |||
| 33 : | \ The keycode names are compatible with pfe-0.9.14 | ||
| 34 : | |||
| 35 : | anton | 1.17 | : keycode ( u1 "name" -- u2 ; name execution: -- u ) |
| 36 : | dup constant 1+ ; | ||
| 37 : | anton | 1.1 | |
| 38 : | anton | 1.12 | \ most of the keys are also in pfe, except: |
| 39 : | \ k-insert, k-delete, k11, k12, s-k11, s-k12 | ||
| 40 : | |||
| 41 : | anton | 1.17 | $40000000 constant k-shift-mask ( -- u ) \ X:ekeys |
| 42 : | $20000000 constant k-ctrl-mask ( -- u ) \ X:ekeys | ||
| 43 : | $10000000 constant k-alt-mask ( -- u ) \ X:ekeys | ||
| 44 : | |||
| 45 : | $80000000 | ||
| 46 : | keycode k-left ( -- u ) \ X:ekeys | ||
| 47 : | keycode k-right ( -- u ) \ X:ekeys | ||
| 48 : | keycode k-up ( -- u ) \ X:ekeys | ||
| 49 : | keycode k-down ( -- u ) \ X:ekeys | ||
| 50 : | keycode k-home ( -- u ) \ X:ekeys | ||
| 51 : | anton | 1.12 | \G aka Pos1 |
| 52 : | anton | 1.17 | keycode k-end ( -- u ) \ X:ekeys |
| 53 : | keycode k-prior ( -- u ) \ X:ekeys | ||
| 54 : | anton | 1.12 | \G aka PgUp |
| 55 : | anton | 1.17 | keycode k-next ( -- u ) \ X:ekeys |
| 56 : | anton | 1.12 | \G aka PgDn |
| 57 : | anton | 1.17 | keycode k-insert ( -- u ) \ X:ekeys |
| 58 : | keycode k-delete ( -- u ) \ X:ekeys | ||
| 59 : | \ the DEL key on my xterm, not backspace | ||
| 60 : | anton | 1.12 | |
| 61 : | anton | 1.1 | \ function/keypad keys |
| 62 : | anton | 1.17 | keycode k-f1 ( -- u ) \ X:ekeys |
| 63 : | keycode k-f2 ( -- u ) \ X:ekeys | ||
| 64 : | keycode k-f3 ( -- u ) \ X:ekeys | ||
| 65 : | keycode k-f4 ( -- u ) \ X:ekeys | ||
| 66 : | keycode k-f5 ( -- u ) \ X:ekeys | ||
| 67 : | keycode k-f6 ( -- u ) \ X:ekeys | ||
| 68 : | keycode k-f7 ( -- u ) \ X:ekeys | ||
| 69 : | keycode k-f8 ( -- u ) \ X:ekeys | ||
| 70 : | keycode k-f9 ( -- u ) \ X:ekeys | ||
| 71 : | keycode k-f10 ( -- u ) \ X:ekeys | ||
| 72 : | keycode k-f11 ( -- u ) \ X:ekeys | ||
| 73 : | keycode k-f12 ( -- u ) \ X:ekeys | ||
| 74 : | drop | ||
| 75 : | |||
| 76 : | ' k-f1 alias k1 ( -- u ) \ gforth-obsolete | ||
| 77 : | ' k-f2 alias k2 ( -- u ) \ gforth-obsolete | ||
| 78 : | ' k-f3 alias k3 ( -- u ) \ gforth-obsolete | ||
| 79 : | ' k-f4 alias k4 ( -- u ) \ gforth-obsolete | ||
| 80 : | ' k-f5 alias k5 ( -- u ) \ gforth-obsolete | ||
| 81 : | ' k-f6 alias k6 ( -- u ) \ gforth-obsolete | ||
| 82 : | ' k-f7 alias k7 ( -- u ) \ gforth-obsolete | ||
| 83 : | ' k-f8 alias k8 ( -- u ) \ gforth-obsolete | ||
| 84 : | ' k-f9 alias k9 ( -- u ) \ gforth-obsolete | ||
| 85 : | ' k-f10 alias k10 ( -- u ) \ gforth-obsolete | ||
| 86 : | ' k-f11 alias k11 ( -- u ) \ gforth-obsolete | ||
| 87 : | ' k-f12 alias k12 ( -- u ) \ gforth-obsolete | ||
| 88 : | anton | 1.5 | \ shifted fuinction keys (don't work in xterm (same as unshifted, but |
| 89 : | \ s-k1..s-k8 work in the Linux console) | ||
| 90 : | anton | 1.17 | k-f1 k-shift-mask or constant s-k1 ( -- u ) \ gforth-obsolete |
| 91 : | k-f2 k-shift-mask or constant s-k2 ( -- u ) \ gforth-obsolete | ||
| 92 : | k-f3 k-shift-mask or constant s-k3 ( -- u ) \ gforth-obsolete | ||
| 93 : | k-f4 k-shift-mask or constant s-k4 ( -- u ) \ gforth-obsolete | ||
| 94 : | k-f5 k-shift-mask or constant s-k5 ( -- u ) \ gforth-obsolete | ||
| 95 : | k-f6 k-shift-mask or constant s-k6 ( -- u ) \ gforth-obsolete | ||
| 96 : | k-f7 k-shift-mask or constant s-k7 ( -- u ) \ gforth-obsolete | ||
| 97 : | k-f8 k-shift-mask or constant s-k8 ( -- u ) \ gforth-obsolete | ||
| 98 : | k-f9 k-shift-mask or constant s-k9 ( -- u ) \ gforth-obsolete | ||
| 99 : | k-f10 k-shift-mask or constant s-k10 ( -- u ) \ gforth-obsolete | ||
| 100 : | k-f11 k-shift-mask or constant s-k11 ( -- u ) \ gforth-obsolete | ||
| 101 : | k-f12 k-shift-mask or constant s-k12 ( -- u ) \ gforth-obsolete | ||
| 102 : | anton | 1.1 | |
| 103 : | \ helper word | ||
| 104 : | \ print a key sequence: | ||
| 105 : | anton | 1.17 | 0 [IF] |
| 106 : | : key-sequence ( -- ) | ||
| 107 : | key begin | ||
| 108 : | cr dup . emit | ||
| 109 : | key? while | ||
| 110 : | key | ||
| 111 : | repeat ; | ||
| 112 : | |||
| 113 : | : key-sequences ( -- ) | ||
| 114 : | begin | ||
| 115 : | key-sequence cr | ||
| 116 : | again ; | ||
| 117 : | [THEN] | ||
| 118 : | anton | 1.1 | |
| 119 : | create key-buffer 8 chars allot | ||
| 120 : | 2variable key-buffered key-buffer 0 key-buffered 2! | ||
| 121 : | |||
| 122 : | : char-append-buffer ( c addr -- ) | ||
| 123 : | tuck 2@ chars + c! | ||
| 124 : | dup 2@ 1+ rot 2! ; | ||
| 125 : | |||
| 126 : | :noname ( -- c ) | ||
| 127 : | \ buffered key | ||
| 128 : | key-buffered 2@ dup if | ||
| 129 : | anton | 1.17 | 1- 2dup key-buffered 2! |
| 130 : | chars + c@ | ||
| 131 : | anton | 1.1 | else |
| 132 : | anton | 1.17 | 2drop defers key |
| 133 : | anton | 1.1 | then ; |
| 134 : | is key | ||
| 135 : | |||
| 136 : | : unkey ( c -- ) | ||
| 137 : | key-buffered char-append-buffer ; | ||
| 138 : | |||
| 139 : | : unkeys ( addr u -- ) | ||
| 140 : | -1 swap 1- -do | ||
| 141 : | anton | 1.17 | dup i chars + c@ unkey |
| 142 : | 1 -loop | ||
| 143 : | anton | 1.1 | drop ; |
| 144 : | |||
| 145 : | :noname ( -- flag ) | ||
| 146 : | key-buffered 2@ nip 0<> defers key? or ; | ||
| 147 : | is key? | ||
| 148 : | |||
| 149 : | table constant esc-sequences \ and prefixes | ||
| 150 : | |||
| 151 : | create ekey-buffer 8 chars allot | ||
| 152 : | 2variable ekey-buffered | ||
| 153 : | |||
| 154 : | pazsan | 1.10 | [IFUNDEF] #esc 27 Constant #esc [THEN] |
| 155 : | anton | 1.1 | |
| 156 : | : esc-prefix ( -- u ) | ||
| 157 : | anton | 1.6 | key? if |
| 158 : | anton | 1.17 | key ekey-buffered char-append-buffer |
| 159 : | ekey-buffered 2@ esc-sequences search-wordlist | ||
| 160 : | if | ||
| 161 : | execute exit | ||
| 162 : | endif | ||
| 163 : | anton | 1.6 | endif |
| 164 : | ekey-buffered 2@ unkeys #esc ; | ||
| 165 : | anton | 1.1 | |
| 166 : | anton | 1.17 | : esc-sequence ( u1 addr u -- ; name execution: -- u2 ) recursive |
| 167 : | \ define escape sequence addr u (=name) to have value u1; if u1=0, | ||
| 168 : | \ addr u is a prefix of some other sequence (with key code u2); | ||
| 169 : | \ also, define all prefixes of addr u if necessary. | ||
| 170 : | anton | 1.1 | 2dup 1- dup |
| 171 : | if | ||
| 172 : | anton | 1.17 | 2dup esc-sequences search-wordlist |
| 173 : | if | ||
| 174 : | drop 2drop | ||
| 175 : | else | ||
| 176 : | 0 -rot esc-sequence \ define the prefixes | ||
| 177 : | then | ||
| 178 : | else | ||
| 179 : | 2drop | ||
| 180 : | then ( u1 addr u ) | ||
| 181 : | nextname dup if ( u1 ) | ||
| 182 : | constant \ full sequence for a key | ||
| 183 : | anton | 1.1 | else |
| 184 : | anton | 1.17 | drop ['] esc-prefix alias |
| 185 : | endif ; | ||
| 186 : | anton | 1.1 | |
| 187 : | crook | 1.2 | \ nac02dec1999 exclude the escape sequences if we are using crossdoc.fs to generate |
| 188 : | \ a documentation file. Do this because key sequences [ and OR here clash with | ||
| 189 : | \ standard names and so prevent them appearing in the documentation. | ||
| 190 : | [IFUNDEF] put-doc-entry | ||
| 191 : | anton | 1.1 | get-current esc-sequences set-current |
| 192 : | |||
| 193 : | \ esc sequences (derived by using key-sequence in an xterm) | ||
| 194 : | anton | 1.17 | k-left s" [D" esc-sequence |
| 195 : | k-right s" [C" esc-sequence | ||
| 196 : | k-up s" [A" esc-sequence | ||
| 197 : | k-down s" [B" esc-sequence | ||
| 198 : | k-home s" [H" esc-sequence | ||
| 199 : | k-end s" [F" esc-sequence | ||
| 200 : | k-prior s" [5~" esc-sequence | ||
| 201 : | k-next s" [6~" esc-sequence | ||
| 202 : | k-insert s" [2~" esc-sequence | ||
| 203 : | k-delete s" [3~" esc-sequence | ||
| 204 : | |||
| 205 : | k-left k-shift-mask or s" [1;2D" esc-sequence | ||
| 206 : | k-right k-shift-mask or s" [1;2C" esc-sequence | ||
| 207 : | k-up k-shift-mask or s" [1;2A" esc-sequence | ||
| 208 : | k-down k-shift-mask or s" [1;2B" esc-sequence | ||
| 209 : | k-home k-shift-mask or s" [1;2H" esc-sequence | ||
| 210 : | k-end k-shift-mask or s" [1;2F" esc-sequence | ||
| 211 : | k-prior k-shift-mask or s" [5;2~" esc-sequence | ||
| 212 : | k-next k-shift-mask or s" [6;2~" esc-sequence | ||
| 213 : | k-insert k-shift-mask or s" [2;2~" esc-sequence | ||
| 214 : | k-delete k-shift-mask or s" [3;2~" esc-sequence | ||
| 215 : | |||
| 216 : | k-left k-ctrl-mask or s" [1;5D" esc-sequence | ||
| 217 : | k-right k-ctrl-mask or s" [1;5C" esc-sequence | ||
| 218 : | k-up k-ctrl-mask or s" [1;5A" esc-sequence | ||
| 219 : | k-down k-ctrl-mask or s" [1;5B" esc-sequence | ||
| 220 : | k-home k-ctrl-mask or s" [1;5H" esc-sequence | ||
| 221 : | k-end k-ctrl-mask or s" [1;5F" esc-sequence | ||
| 222 : | k-prior k-ctrl-mask or s" [5;5~" esc-sequence | ||
| 223 : | k-next k-ctrl-mask or s" [6;5~" esc-sequence | ||
| 224 : | k-insert k-ctrl-mask or s" [2;5~" esc-sequence | ||
| 225 : | k-delete k-ctrl-mask or s" [3;5~" esc-sequence | ||
| 226 : | |||
| 227 : | k-left k-alt-mask or s" [1;3D" esc-sequence | ||
| 228 : | k-right k-alt-mask or s" [1;3C" esc-sequence | ||
| 229 : | k-up k-alt-mask or s" [1;3A" esc-sequence | ||
| 230 : | k-down k-alt-mask or s" [1;3B" esc-sequence | ||
| 231 : | k-home k-alt-mask or s" [1;3H" esc-sequence | ||
| 232 : | k-end k-alt-mask or s" [1;3F" esc-sequence | ||
| 233 : | k-prior k-alt-mask or s" [5;3~" esc-sequence | ||
| 234 : | k-next k-alt-mask or s" [6;3~" esc-sequence | ||
| 235 : | k-insert k-alt-mask or s" [2;3~" esc-sequence | ||
| 236 : | k-delete k-alt-mask or s" [3;3~" esc-sequence | ||
| 237 : | |||
| 238 : | k1 s" OP" esc-sequence | ||
| 239 : | k2 s" OQ" esc-sequence | ||
| 240 : | k3 s" OR" esc-sequence | ||
| 241 : | k4 s" OS" esc-sequence | ||
| 242 : | k5 s" [15~" esc-sequence | ||
| 243 : | k6 s" [17~" esc-sequence | ||
| 244 : | k7 s" [18~" esc-sequence | ||
| 245 : | k8 s" [19~" esc-sequence | ||
| 246 : | k9 s" [20~" esc-sequence | ||
| 247 : | k10 s" [21~" esc-sequence | ||
| 248 : | k11 s" [23~" esc-sequence | ||
| 249 : | k12 s" [24~" esc-sequence | ||
| 250 : | |||
| 251 : | s-k1 s" [1;2P" esc-sequence | ||
| 252 : | s-k2 s" [1;2Q" esc-sequence | ||
| 253 : | s-k3 s" [1;2R" esc-sequence | ||
| 254 : | s-k4 s" [1;2S" esc-sequence | ||
| 255 : | s-k5 s" [15;2~" esc-sequence | ||
| 256 : | s-k6 s" [17;2~" esc-sequence | ||
| 257 : | s-k7 s" [18;2~" esc-sequence | ||
| 258 : | s-k8 s" [19;2~" esc-sequence | ||
| 259 : | s-k9 s" [20;2~" esc-sequence | ||
| 260 : | s-k10 s" [21;2~" esc-sequence | ||
| 261 : | s-k11 s" [23;2~" esc-sequence | ||
| 262 : | s-k12 s" [24;2~" esc-sequence | ||
| 263 : | |||
| 264 : | k-f1 k-ctrl-mask or s" [1;5P" esc-sequence | ||
| 265 : | k-f2 k-ctrl-mask or s" [1;5Q" esc-sequence | ||
| 266 : | k-f3 k-ctrl-mask or s" [1;5R" esc-sequence | ||
| 267 : | k-f4 k-ctrl-mask or s" [1;5S" esc-sequence | ||
| 268 : | k-f5 k-ctrl-mask or s" [15;5~" esc-sequence | ||
| 269 : | k-f6 k-ctrl-mask or s" [17;5~" esc-sequence | ||
| 270 : | k-f7 k-ctrl-mask or s" [18;5~" esc-sequence | ||
| 271 : | k-f8 k-ctrl-mask or s" [19;5~" esc-sequence | ||
| 272 : | k-f9 k-ctrl-mask or s" [20;5~" esc-sequence | ||
| 273 : | k-f10 k-ctrl-mask or s" [21;5~" esc-sequence | ||
| 274 : | k-f11 k-ctrl-mask or s" [23;5~" esc-sequence | ||
| 275 : | k-f12 k-ctrl-mask or s" [24;5~" esc-sequence | ||
| 276 : | |||
| 277 : | k-f1 k-alt-mask or s" [1;3P" esc-sequence | ||
| 278 : | k-f2 k-alt-mask or s" [1;3Q" esc-sequence | ||
| 279 : | k-f3 k-alt-mask or s" [1;3R" esc-sequence | ||
| 280 : | k-f4 k-alt-mask or s" [1;3S" esc-sequence | ||
| 281 : | k-f5 k-alt-mask or s" [15;3~" esc-sequence | ||
| 282 : | k-f6 k-alt-mask or s" [17;3~" esc-sequence | ||
| 283 : | k-f7 k-alt-mask or s" [18;3~" esc-sequence | ||
| 284 : | k-f8 k-alt-mask or s" [19;3~" esc-sequence | ||
| 285 : | k-f9 k-alt-mask or s" [20;3~" esc-sequence | ||
| 286 : | k-f10 k-alt-mask or s" [21;3~" esc-sequence | ||
| 287 : | k-f11 k-alt-mask or s" [23;3~" esc-sequence | ||
| 288 : | k-f12 k-alt-mask or s" [24;3~" esc-sequence | ||
| 289 : | anton | 1.4 | |
| 290 : | \ esc sequences from Linux console: | ||
| 291 : | |||
| 292 : | anton | 1.17 | k1 s" [[A" esc-sequence |
| 293 : | k2 s" [[B" esc-sequence | ||
| 294 : | k3 s" [[C" esc-sequence | ||
| 295 : | k4 s" [[D" esc-sequence | ||
| 296 : | k5 s" [[E" esc-sequence | ||
| 297 : | \ k-delete s" [3~" esc-sequence \ duplicate from above | ||
| 298 : | k-home s" [1~" esc-sequence | ||
| 299 : | k-end s" [4~" esc-sequence | ||
| 300 : | |||
| 301 : | s-k1 s" [25~" esc-sequence | ||
| 302 : | s-k2 s" [26~" esc-sequence | ||
| 303 : | s-k3 s" [28~" esc-sequence | ||
| 304 : | s-k4 s" [29~" esc-sequence | ||
| 305 : | s-k5 s" [31~" esc-sequence | ||
| 306 : | s-k6 s" [32~" esc-sequence | ||
| 307 : | s-k7 s" [33~" esc-sequence | ||
| 308 : | s-k8 s" [34~" esc-sequence | ||
| 309 : | anton | 1.1 | |
| 310 : | set-current | ||
| 311 : | crook | 1.2 | [ENDIF] |
| 312 : | anton | 1.1 | |
| 313 : | : clear-ekey-buffer ( -- ) | ||
| 314 : | anton | 1.12 | ekey-buffer 0 ekey-buffered 2! ; |
| 315 : | anton | 1.1 | |
| 316 : | crook | 1.2 | : ekey ( -- u ) \ facility-ext e-key |
| 317 : | anton | 1.12 | \G Receive a keyboard event @var{u} (encoding implementation-defined). |
| 318 : | anton | 1.1 | key dup #esc = |
| 319 : | if | ||
| 320 : | anton | 1.17 | drop clear-ekey-buffer |
| 321 : | esc-prefix | ||
| 322 : | anton | 1.1 | then ; |
| 323 : | |||
| 324 : | crook | 1.2 | : ekey>char ( u -- u false | c true ) \ facility-ext e-key-to-char |
| 325 : | anton | 1.12 | \G Convert keyboard event @var{u} into character @code{c} if possible. |
| 326 : | pazsan | 1.15 | dup k-left u< ; \ k-left must be first! |
| 327 : | anton | 1.1 | |
| 328 : | anton | 1.17 | : ekey>fkey ( u1 -- u2 f ) \ X:ekeys |
| 329 : | \G If u1 is a keyboard event in the special key set, convert | ||
| 330 : | \G keyboard event @var{u1} into key id @var{u2} and return true; | ||
| 331 : | \G otherwise return @var{u1} and false. | ||
| 332 : | ekey>char 0= ; | ||
| 333 : | |||
| 334 : | anton | 1.12 | ' key? alias ekey? ( -- flag ) \ facility-ext e-key-question |
| 335 : | anton | 1.14 | \G True if a keyboard event is available. |
| 336 : | anton | 1.1 | |
| 337 : | anton | 1.7 | \ : esc? ( -- flag ) recursive |
| 338 : | \ key? 0= | ||
| 339 : | \ if | ||
| 340 : | anton | 1.17 | \ false exit |
| 341 : | anton | 1.7 | \ then |
| 342 : | \ key ekey-buffered char-append-buffer | ||
| 343 : | \ ekey-buffered 2@ esc-sequences search-wordlist | ||
| 344 : | \ if | ||
| 345 : | anton | 1.17 | \ ['] esc-prefix = |
| 346 : | \ if | ||
| 347 : | \ esc? exit | ||
| 348 : | \ then | ||
| 349 : | anton | 1.7 | \ then |
| 350 : | \ true ; | ||
| 351 : | |||
| 352 : | \ : ekey? ( -- flag ) \ facility-ext e-key-question | ||
| 353 : | \ \G Return @code{true} if a keyboard event is available (use | ||
| 354 : | \ \G @code{ekey} to receive the event), @code{false} otherwise. | ||
| 355 : | \ key? | ||
| 356 : | \ if | ||
| 357 : | anton | 1.17 | \ key dup #esc = |
| 358 : | \ if | ||
| 359 : | \ clear-ekey-buffer esc? | ||
| 360 : | \ ekey-buffered 2@ unkeys | ||
| 361 : | \ else | ||
| 362 : | \ true | ||
| 363 : | \ then | ||
| 364 : | \ swap unkey | ||
| 365 : | anton | 1.7 | \ else |
| 366 : | anton | 1.17 | \ false |
| 367 : | anton | 1.7 | \ then ; |
| 368 : | anton | 1.1 | |
| 369 : | anton | 1.17 | 0 [if] |
| 370 : | : test-ekey? | ||
| 371 : | begin | ||
| 372 : | begin | ||
| 373 : | begin | ||
| 374 : | key? until | ||
| 375 : | ekey? until | ||
| 376 : | .s ekey .s drop | ||
| 377 : | again ; | ||
| 378 : | anton | 1.1 | \ test-ekey? |
| 379 : | anton | 1.17 | [then] |
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