mode-key.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <string.h>
  22
  23 #include "tmux.h"
  24
  25 /*
  26  * Mode keys. These are the key bindings used when editing (status prompt), and
  27  * in the modes. They are split into two sets of three tables, one set of three
  28  * for vi and the other for emacs key bindings. The three tables are for
  29  * editing, for menu-like modes (choice, more), and for copy modes (copy,
  30  * scroll).
  31  *
  32  * The fixed tables of struct mode_key_entry below are the defaults: they are
  33  * built into a tree of struct mode_key_binding by mode_key_init_trees, which
  34  * can then be modified.
  35  *
  36  * vi command mode is handled by having a mode flag in the struct which allows
  37  * two sets of bindings to be swapped between. A couple of editing commands
  38  * (MODEKEYEDIT_SWITCHMODE and MODEKEYEDIT_SWITCHMODEAPPEND) are special-cased
  39  * to do this.
  40  */
  41
  42 /* Edit keys command strings. */
  43 const struct mode_key_cmdstr mode_key_cmdstr_edit[] = {
  44         { MODEKEYEDIT_BACKSPACE, "backspace" },
  45         { MODEKEYEDIT_CANCEL, "cancel" },
  46         { MODEKEYEDIT_COMPLETE, "complete" },
  47         { MODEKEYEDIT_CURSORLEFT, "cursor-left" },
  48         { MODEKEYEDIT_CURSORRIGHT, "cursor-right" },
  49         { MODEKEYEDIT_DELETE, "delete" },
  50         { MODEKEYEDIT_DELETELINE, "delete-line" },
  51         { MODEKEYEDIT_DELETETOENDOFLINE, "delete-end-of-line" },
  52         { MODEKEYEDIT_ENDOFLINE, "end-of-line" },
  53         { MODEKEYEDIT_ENTER, "enter" },
  54         { MODEKEYEDIT_HISTORYDOWN, "history-down" },
  55         { MODEKEYEDIT_HISTORYUP, "history-up" },
  56         { MODEKEYEDIT_PASTE, "paste" },
  57         { MODEKEYEDIT_STARTOFLINE, "start-of-line" },
  58         { MODEKEYEDIT_SWITCHMODE, "switch-mode" },
  59         { MODEKEYEDIT_SWITCHMODEAPPEND, "switch-mode-append" },
  60         { MODEKEYEDIT_TRANSPOSECHARS, "transpose-chars" },
  61
  62         { 0, NULL }
  63 };
  64
  65 /* Choice keys command strings. */
  66 const struct mode_key_cmdstr mode_key_cmdstr_choice[] = {
  67         { MODEKEYCHOICE_CANCEL, "cancel" },
  68         { MODEKEYCHOICE_CHOOSE, "choose" },
  69         { MODEKEYCHOICE_DOWN, "down" },
  70         { MODEKEYCHOICE_PAGEDOWN, "page-down" },
  71         { MODEKEYCHOICE_PAGEUP, "page-up" },
  72         { MODEKEYCHOICE_SCROLLDOWN, "scroll-down" },
  73         { MODEKEYCHOICE_SCROLLUP, "scroll-up" },
  74         { MODEKEYCHOICE_UP, "up" },
  75
  76         { 0, NULL }
  77 };
  78
  79 /* Copy keys command strings. */
  80 const struct mode_key_cmdstr mode_key_cmdstr_copy[] = {
  81         { MODEKEYCOPY_BACKTOINDENTATION, "back-to-indentation" },
  82         { MODEKEYCOPY_BOTTOMLINE, "bottom-line" },
  83         { MODEKEYCOPY_CANCEL, "cancel" },
  84         { MODEKEYCOPY_CLEARSELECTION, "clear-selection" },
  85         { MODEKEYCOPY_COPYSELECTION, "copy-selection" },
  86         { MODEKEYCOPY_DOWN, "cursor-down" },
  87         { MODEKEYCOPY_ENDOFLINE, "end-of-line" },
  88         { MODEKEYCOPY_GOTOLINE, "goto-line" },
  89         { MODEKEYCOPY_HISTORYBOTTOM, "history-bottom" },
  90         { MODEKEYCOPY_HISTORYTOP, "history-top" },
  91         { MODEKEYCOPY_JUMP, "jump-forward" },
  92         { MODEKEYCOPY_JUMPAGAIN, "jump-again" },
  93         { MODEKEYCOPY_JUMPREVERSE, "jump-reverse" },
  94         { MODEKEYCOPY_JUMPBACK, "jump-backward" },
  95         { MODEKEYCOPY_LEFT, "cursor-left" },
  96         { MODEKEYCOPY_RECTANGLETOGGLE, "rectangle-toggle" },
  97         { MODEKEYCOPY_MIDDLELINE, "middle-line" },
  98         { MODEKEYCOPY_NEXTPAGE, "page-down" },
  99         { MODEKEYCOPY_NEXTSPACE, "next-space" },
 100         { MODEKEYCOPY_NEXTSPACEEND, "next-space-end" },
 101         { MODEKEYCOPY_NEXTWORD, "next-word" },
 102         { MODEKEYCOPY_NEXTWORDEND, "next-word-end" },
 103         { MODEKEYCOPY_PREVIOUSPAGE, "page-up" },
 104         { MODEKEYCOPY_PREVIOUSSPACE, "previous-space" },
 105         { MODEKEYCOPY_PREVIOUSWORD, "previous-word" },
 106         { MODEKEYCOPY_RIGHT, "cursor-right" },
 107         { MODEKEYCOPY_SCROLLDOWN, "scroll-down" },
 108         { MODEKEYCOPY_SCROLLUP, "scroll-up" },
 109         { MODEKEYCOPY_SEARCHAGAIN, "search-again" },
 110         { MODEKEYCOPY_SEARCHDOWN, "search-forward" },
 111         { MODEKEYCOPY_SEARCHREVERSE, "search-reverse" },
 112         { MODEKEYCOPY_SEARCHUP, "search-backward" },
 113         { MODEKEYCOPY_STARTNUMBERPREFIX, "start-number-prefix" },
 114         { MODEKEYCOPY_STARTOFLINE, "start-of-line" },
 115         { MODEKEYCOPY_STARTSELECTION, "begin-selection" },
 116         { MODEKEYCOPY_TOPLINE, "top-line" },
 117         { MODEKEYCOPY_UP, "cursor-up" },
 118
 119         { 0, NULL }
 120 };
 121
 122 /* vi editing keys. */
 123 const struct mode_key_entry mode_key_vi_edit[] = {
 124         { '\003' /* C-c */,     0, MODEKEYEDIT_CANCEL },
 125         { '\010' /* C-h */,     0, MODEKEYEDIT_BACKSPACE },
 126         { '\025' /* C-u */,     0, MODEKEYEDIT_DELETELINE },
 127         { '\011' /* Tab */,     0, MODEKEYEDIT_COMPLETE },
 128         { '\033' /* Escape */,  0, MODEKEYEDIT_SWITCHMODE },
 129         { '\r',                 0, MODEKEYEDIT_ENTER },
 130         { KEYC_BSPACE,          0, MODEKEYEDIT_BACKSPACE },
 131         { KEYC_DC,              0, MODEKEYEDIT_DELETE },
 132
 133         { '$',                  1, MODEKEYEDIT_ENDOFLINE },
 134         { '0',                  1, MODEKEYEDIT_STARTOFLINE },
 135         { 'D',                  1, MODEKEYEDIT_DELETETOENDOFLINE },
 136         { '\003' /* C-c */,     1, MODEKEYEDIT_CANCEL },
 137         { '\010' /* C-h */,     1, MODEKEYEDIT_BACKSPACE },
 138         { '\r',                 1, MODEKEYEDIT_ENTER },
 139         { '^',                  1, MODEKEYEDIT_STARTOFLINE },
 140         { 'a',                  1, MODEKEYEDIT_SWITCHMODEAPPEND },
 141         { 'd',                  1, MODEKEYEDIT_DELETELINE },
 142         { 'h',                  1, MODEKEYEDIT_CURSORLEFT },
 143         { 'i',                  1, MODEKEYEDIT_SWITCHMODE },
 144         { 'j',                  1, MODEKEYEDIT_HISTORYDOWN },
 145         { 'k',                  1, MODEKEYEDIT_HISTORYUP },
 146         { 'l',                  1, MODEKEYEDIT_CURSORRIGHT },
 147         { 'p',                  1, MODEKEYEDIT_PASTE },
 148         { KEYC_BSPACE,          1, MODEKEYEDIT_BACKSPACE },
 149         { KEYC_DC,              1, MODEKEYEDIT_DELETE },
 150         { KEYC_DOWN,            1, MODEKEYEDIT_HISTORYDOWN },
 151         { KEYC_LEFT,            1, MODEKEYEDIT_CURSORLEFT },
 152         { KEYC_RIGHT,           1, MODEKEYEDIT_CURSORRIGHT },
 153         { KEYC_UP,              1, MODEKEYEDIT_HISTORYUP },
 154
 155         { 0,                   -1, 0 }
 156 };
 157 struct mode_key_tree mode_key_tree_vi_edit;
 158
 159 /* vi choice selection keys. */
 160 const struct mode_key_entry mode_key_vi_choice[] = {
 161         { '\002' /* C-b */,     0, MODEKEYCHOICE_PAGEUP },
 162         { '\003' /* C-c */,     0, MODEKEYCHOICE_CANCEL },
 163         { '\005' /* C-e */,     0, MODEKEYCHOICE_SCROLLDOWN },
 164         { '\006' /* C-f */,     0, MODEKEYCHOICE_PAGEDOWN },
 165         { '\031' /* C-y */,     0, MODEKEYCHOICE_SCROLLUP },
 166         { '\r',                 0, MODEKEYCHOICE_CHOOSE },
 167         { 'j',                  0, MODEKEYCHOICE_DOWN },
 168         { 'k',                  0, MODEKEYCHOICE_UP },
 169         { 'q',                  0, MODEKEYCHOICE_CANCEL },
 170         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCHOICE_SCROLLDOWN },
 171         { KEYC_DOWN,            0, MODEKEYCHOICE_DOWN },
 172         { KEYC_NPAGE,           0, MODEKEYCHOICE_PAGEDOWN },
 173         { KEYC_PPAGE,           0, MODEKEYCHOICE_PAGEUP },
 174         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCHOICE_SCROLLUP },
 175         { KEYC_UP,              0, MODEKEYCHOICE_UP },
 176
 177         { 0,                    -1, 0 }
 178 };
 179 struct mode_key_tree mode_key_tree_vi_choice;
 180
 181 /* vi copy mode keys. */
 182 const struct mode_key_entry mode_key_vi_copy[] = {
 183         { ' ',                  0, MODEKEYCOPY_STARTSELECTION },
 184         { '$',                  0, MODEKEYCOPY_ENDOFLINE },
 185         { ',',                  0, MODEKEYCOPY_JUMPREVERSE },
 186         { ';',                  0, MODEKEYCOPY_JUMPAGAIN },
 187         { '/',                  0, MODEKEYCOPY_SEARCHDOWN },
 188         { '0',                  0, MODEKEYCOPY_STARTOFLINE },
 189         { '1',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 190         { '2',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 191         { '3',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 192         { '4',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 193         { '5',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 194         { '6',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 195         { '7',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 196         { '8',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 197         { '9',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 198         { ':',                  0, MODEKEYCOPY_GOTOLINE },
 199         { '?',                  0, MODEKEYCOPY_SEARCHUP },
 200         { 'B',                  0, MODEKEYCOPY_PREVIOUSSPACE },
 201         { 'E',                  0, MODEKEYCOPY_NEXTSPACEEND },
 202         { 'F',                  0, MODEKEYCOPY_JUMPBACK },
 203         { 'G',                  0, MODEKEYCOPY_HISTORYBOTTOM },
 204         { 'H',                  0, MODEKEYCOPY_TOPLINE },
 205         { 'J',                  0, MODEKEYCOPY_SCROLLDOWN },
 206         { 'K',                  0, MODEKEYCOPY_SCROLLUP },
 207         { 'L',                  0, MODEKEYCOPY_BOTTOMLINE },
 208         { 'M',                  0, MODEKEYCOPY_MIDDLELINE },
 209         { 'N',                  0, MODEKEYCOPY_SEARCHREVERSE },
 210         { 'W',                  0, MODEKEYCOPY_NEXTSPACE },
 211         { '\002' /* C-b */,     0, MODEKEYCOPY_PREVIOUSPAGE },
 212         { '\003' /* C-c */,     0, MODEKEYCOPY_CANCEL },
 213         { '\004' /* C-d */,     0, MODEKEYCOPY_HALFPAGEDOWN },
 214         { '\005' /* C-e */,     0, MODEKEYCOPY_SCROLLDOWN },
 215         { '\006' /* C-f */,     0, MODEKEYCOPY_NEXTPAGE },
 216         { '\010' /* C-h */,     0, MODEKEYCOPY_LEFT },
 217         { '\025' /* C-u */,     0, MODEKEYCOPY_HALFPAGEUP },
 218         { '\031' /* C-y */,     0, MODEKEYCOPY_SCROLLUP },
 219         { '\033' /* Escape */,  0, MODEKEYCOPY_CLEARSELECTION },
 220         { '\r',                 0, MODEKEYCOPY_COPYSELECTION },
 221         { '^',                  0, MODEKEYCOPY_BACKTOINDENTATION },
 222         { 'b',                  0, MODEKEYCOPY_PREVIOUSWORD },
 223         { 'e',                  0, MODEKEYCOPY_NEXTWORDEND },
 224         { 'f',                  0, MODEKEYCOPY_JUMP },
 225         { 'g',                  0, MODEKEYCOPY_HISTORYTOP },
 226         { 'h',                  0, MODEKEYCOPY_LEFT },
 227         { 'j',                  0, MODEKEYCOPY_DOWN },
 228         { 'k',                  0, MODEKEYCOPY_UP },
 229         { 'l',                  0, MODEKEYCOPY_RIGHT },
 230         { 'n',                  0, MODEKEYCOPY_SEARCHAGAIN },
 231         { 'q',                  0, MODEKEYCOPY_CANCEL },
 232         { 'v',                  0, MODEKEYCOPY_RECTANGLETOGGLE },
 233         { 'w',                  0, MODEKEYCOPY_NEXTWORD },
 234         { KEYC_BSPACE,          0, MODEKEYCOPY_LEFT },
 235         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCOPY_SCROLLDOWN },
 236         { KEYC_DOWN,            0, MODEKEYCOPY_DOWN },
 237         { KEYC_LEFT,            0, MODEKEYCOPY_LEFT },
 238         { KEYC_NPAGE,           0, MODEKEYCOPY_NEXTPAGE },
 239         { KEYC_PPAGE,           0, MODEKEYCOPY_PREVIOUSPAGE },
 240         { KEYC_RIGHT,           0, MODEKEYCOPY_RIGHT },
 241         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCOPY_SCROLLUP },
 242         { KEYC_UP,              0, MODEKEYCOPY_UP },
 243
 244         { 0,                    -1, 0 }
 245 };
 246 struct mode_key_tree mode_key_tree_vi_copy;
 247
 248 /* emacs editing keys. */
 249 const struct mode_key_entry mode_key_emacs_edit[] = {
 250         { '\001' /* C-a */,     0, MODEKEYEDIT_STARTOFLINE },
 251         { '\002' /* C-b */,     0, MODEKEYEDIT_CURSORLEFT },
 252         { '\003' /* C-c */,     0, MODEKEYEDIT_CANCEL },
 253         { '\004' /* C-d */,     0, MODEKEYEDIT_DELETE },
 254         { '\005' /* C-e */,     0, MODEKEYEDIT_ENDOFLINE },
 255         { '\006' /* C-f */,     0, MODEKEYEDIT_CURSORRIGHT },
 256         { '\010' /* C-H */,     0, MODEKEYEDIT_BACKSPACE },
 257         { '\011' /* Tab */,     0, MODEKEYEDIT_COMPLETE },
 258         { '\013' /* C-k */,     0, MODEKEYEDIT_DELETETOENDOFLINE },
 259         { '\016' /* C-n */,     0, MODEKEYEDIT_HISTORYDOWN },
 260         { '\020' /* C-p */,     0, MODEKEYEDIT_HISTORYUP },
 261         { '\024' /* C-t */,     0, MODEKEYEDIT_TRANSPOSECHARS },
 262         { '\025' /* C-u */,     0, MODEKEYEDIT_DELETELINE },
 263         { '\031' /* C-y */,     0, MODEKEYEDIT_PASTE },
 264         { '\033' /* Escape */,  0, MODEKEYEDIT_CANCEL },
 265         { '\r',                 0, MODEKEYEDIT_ENTER },
 266         { 'm' | KEYC_ESCAPE,    0, MODEKEYEDIT_STARTOFLINE },
 267         { KEYC_BSPACE,          0, MODEKEYEDIT_BACKSPACE },
 268         { KEYC_DC,              0, MODEKEYEDIT_DELETE },
 269         { KEYC_DOWN,            0, MODEKEYEDIT_HISTORYDOWN },
 270         { KEYC_LEFT,            0, MODEKEYEDIT_CURSORLEFT },
 271         { KEYC_RIGHT,           0, MODEKEYEDIT_CURSORRIGHT },
 272         { KEYC_UP,              0, MODEKEYEDIT_HISTORYUP },
 273
 274         { 0,                   -1, 0 }
 275 };
 276 struct mode_key_tree mode_key_tree_emacs_edit;
 277
 278 /* emacs choice selection keys. */
 279 const struct mode_key_entry mode_key_emacs_choice[] = {
 280         { '\003' /* C-c */,     0, MODEKEYCHOICE_CANCEL },
 281         { '\016' /* C-n */,     0, MODEKEYCHOICE_DOWN },
 282         { '\020' /* C-p */,     0, MODEKEYCHOICE_UP },
 283         { '\026' /* C-v */,     0, MODEKEYCHOICE_PAGEDOWN },
 284         { '\033' /* Escape */,  0, MODEKEYCHOICE_CANCEL },
 285         { '\r',                 0, MODEKEYCHOICE_CHOOSE },
 286         { 'q',                  0, MODEKEYCHOICE_CANCEL },
 287         { 'v' | KEYC_ESCAPE,    0, MODEKEYCHOICE_PAGEUP },
 288         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCHOICE_SCROLLDOWN },
 289         { KEYC_DOWN,            0, MODEKEYCHOICE_DOWN },
 290         { KEYC_NPAGE,           0, MODEKEYCHOICE_PAGEDOWN },
 291         { KEYC_PPAGE,           0, MODEKEYCHOICE_PAGEUP },
 292         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCHOICE_SCROLLUP },
 293         { KEYC_UP,              0, MODEKEYCHOICE_UP },
 294
 295         { 0,                    -1, 0 }
 296 };
 297 struct mode_key_tree mode_key_tree_emacs_choice;
 298
 299 /* emacs copy mode keys. */
 300 const struct mode_key_entry mode_key_emacs_copy[] = {
 301         { ' ',                  0, MODEKEYCOPY_NEXTPAGE },
 302         { ',',                  0, MODEKEYCOPY_JUMPREVERSE },
 303         { ';',                  0, MODEKEYCOPY_JUMPAGAIN },
 304         { '1' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 305         { '2' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 306         { '3' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 307         { '4' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 308         { '5' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 309         { '6' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 310         { '7' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 311         { '8' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 312         { '9' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 313         { '<' | KEYC_ESCAPE,    0, MODEKEYCOPY_HISTORYTOP },
 314         { '>' | KEYC_ESCAPE,    0, MODEKEYCOPY_HISTORYBOTTOM },
 315         { 'F',                  0, MODEKEYCOPY_JUMPBACK },
 316         { 'N',                  0, MODEKEYCOPY_SEARCHREVERSE },
 317         { 'R' | KEYC_ESCAPE,    0, MODEKEYCOPY_TOPLINE },
 318         { 'R',                  0, MODEKEYCOPY_RECTANGLETOGGLE },
 319         { '\000' /* C-Space */, 0, MODEKEYCOPY_STARTSELECTION },
 320         { '\001' /* C-a */,     0, MODEKEYCOPY_STARTOFLINE },
 321         { '\002' /* C-b */,     0, MODEKEYCOPY_LEFT },
 322         { '\003' /* C-c */,     0, MODEKEYCOPY_CANCEL },
 323         { '\005' /* C-e */,     0, MODEKEYCOPY_ENDOFLINE },
 324         { '\006' /* C-f */,     0, MODEKEYCOPY_RIGHT },
 325         { '\007' /* C-g */,     0, MODEKEYCOPY_CLEARSELECTION },
 326         { '\016' /* C-n */,     0, MODEKEYCOPY_DOWN },
 327         { '\020' /* C-p */,     0, MODEKEYCOPY_UP },
 328         { '\022' /* C-r */,     0, MODEKEYCOPY_SEARCHUP },
 329         { '\023' /* C-s */,     0, MODEKEYCOPY_SEARCHDOWN },
 330         { '\026' /* C-v */,     0, MODEKEYCOPY_NEXTPAGE },
 331         { '\027' /* C-w */,     0, MODEKEYCOPY_COPYSELECTION },
 332         { '\033' /* Escape */,  0, MODEKEYCOPY_CANCEL },
 333         { 'N',                  0, MODEKEYCOPY_SEARCHREVERSE },
 334         { 'b' | KEYC_ESCAPE,    0, MODEKEYCOPY_PREVIOUSWORD },
 335         { 'f',                  0, MODEKEYCOPY_JUMP },
 336         { 'f' | KEYC_ESCAPE,    0, MODEKEYCOPY_NEXTWORDEND },
 337         { 'g',                  0, MODEKEYCOPY_GOTOLINE },
 338         { 'm' | KEYC_ESCAPE,    0, MODEKEYCOPY_BACKTOINDENTATION },
 339         { 'n',                  0, MODEKEYCOPY_SEARCHAGAIN },
 340         { 'q',                  0, MODEKEYCOPY_CANCEL },
 341         { 'r' | KEYC_ESCAPE,    0, MODEKEYCOPY_MIDDLELINE },
 342         { 'v' | KEYC_ESCAPE,    0, MODEKEYCOPY_PREVIOUSPAGE },
 343         { 'w' | KEYC_ESCAPE,    0, MODEKEYCOPY_COPYSELECTION },
 344         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCOPY_SCROLLDOWN },
 345         { KEYC_DOWN | KEYC_ESCAPE, 0, MODEKEYCOPY_HALFPAGEDOWN },
 346         { KEYC_DOWN,            0, MODEKEYCOPY_DOWN },
 347         { KEYC_LEFT,            0, MODEKEYCOPY_LEFT },
 348         { KEYC_NPAGE,           0, MODEKEYCOPY_NEXTPAGE },
 349         { KEYC_PPAGE,           0, MODEKEYCOPY_PREVIOUSPAGE },
 350         { KEYC_RIGHT,           0, MODEKEYCOPY_RIGHT },
 351         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCOPY_SCROLLUP },
 352         { KEYC_UP | KEYC_ESCAPE, 0, MODEKEYCOPY_HALFPAGEUP },
 353         { KEYC_UP,              0, MODEKEYCOPY_UP },
 354
 355         { 0,                    -1, 0 }
 356 };
 357 struct mode_key_tree mode_key_tree_emacs_copy;
 358
 359 /* Table mapping key table names to default settings and trees. */
 360 const struct mode_key_table mode_key_tables[] = {
 361         { "vi-edit", mode_key_cmdstr_edit,
 362           &mode_key_tree_vi_edit, mode_key_vi_edit },
 363         { "vi-choice", mode_key_cmdstr_choice,
 364           &mode_key_tree_vi_choice, mode_key_vi_choice },
 365         { "vi-copy", mode_key_cmdstr_copy,
 366           &mode_key_tree_vi_copy, mode_key_vi_copy },
 367         { "emacs-edit", mode_key_cmdstr_edit,
 368           &mode_key_tree_emacs_edit, mode_key_emacs_edit },
 369         { "emacs-choice", mode_key_cmdstr_choice,
 370           &mode_key_tree_emacs_choice, mode_key_emacs_choice },
 371         { "emacs-copy", mode_key_cmdstr_copy,
 372           &mode_key_tree_emacs_copy, mode_key_emacs_copy },
 373
 374         { NULL, NULL, NULL, NULL }
 375 };
 376
 377 SPLAY_GENERATE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
 378
 379 int
 380 mode_key_cmp(struct mode_key_binding *mbind1, struct mode_key_binding *mbind2)
 381 {
 382         if (mbind1->mode != mbind2->mode)
 383                 return (mbind1->mode - mbind2->mode);
 384         return (mbind1->key - mbind2->key);
 385 }
 386
 387 const char *
 388 mode_key_tostring(const struct mode_key_cmdstr *cmdstr, enum mode_key_cmd cmd)
 389 {
 390         for (; cmdstr->name != NULL; cmdstr++) {
 391                 if (cmdstr->cmd == cmd)
 392                         return (cmdstr->name);
 393         }
 394         return (NULL);
 395 }
 396
 397 enum mode_key_cmd
 398 mode_key_fromstring(const struct mode_key_cmdstr *cmdstr, const char *name)
 399 {
 400         for (; cmdstr->name != NULL; cmdstr++) {
 401                 if (strcasecmp(cmdstr->name, name) == 0)
 402                         return (cmdstr->cmd);
 403         }
 404         return (MODEKEY_NONE);
 405 }
 406
 407 const struct mode_key_table *
 408 mode_key_findtable(const char *name)
 409 {
 410         const struct mode_key_table     *mtab;
 411
 412         for (mtab = mode_key_tables; mtab->name != NULL; mtab++) {
 413                 if (strcasecmp(name, mtab->name) == 0)
 414                         return (mtab);
 415         }
 416         return (NULL);
 417 }
 418
 419 void
 420 mode_key_init_trees(void)
 421 {
 422         const struct mode_key_table     *mtab;
 423         const struct mode_key_entry     *ment;
 424         struct mode_key_binding         *mbind;
 425
 426         for (mtab = mode_key_tables; mtab->name != NULL; mtab++) {
 427                 SPLAY_INIT(mtab->tree);
 428                 for (ment = mtab->table; ment->mode != -1; ment++) {
 429                         mbind = xmalloc(sizeof *mbind);
 430                         mbind->key = ment->key;
 431                         mbind->mode = ment->mode;
 432                         mbind->cmd = ment->cmd;
 433                         SPLAY_INSERT(mode_key_tree, mtab->tree, mbind);
 434                 }
 435         }
 436 }
 437
 438 void
 439 mode_key_init(struct mode_key_data *mdata, struct mode_key_tree *mtree)
 440 {
 441         mdata->tree = mtree;
 442         mdata->mode = 0;
 443 }
 444
 445 enum mode_key_cmd
 446 mode_key_lookup(struct mode_key_data *mdata, int key)
 447 {
 448         struct mode_key_binding *mbind, mtmp;
 449
 450         mtmp.key = key;
 451         mtmp.mode = mdata->mode;
 452         if ((mbind = SPLAY_FIND(mode_key_tree, mdata->tree, &mtmp)) == NULL) {
 453                 if (mdata->mode != 0)
 454                         return (MODEKEY_NONE);
 455                 return (MODEKEY_OTHER);
 456         }
 457
 458         switch (mbind->cmd) {
 459         case MODEKEYEDIT_SWITCHMODE:
 460         case MODEKEYEDIT_SWITCHMODEAPPEND:
 461                 mdata->mode = 1 - mdata->mode;
 462                 /* FALLTHROUGH */
 463         default:
 464                 return (mbind->cmd);
 465         }
 466 }