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_DELETEWORD, "delete-word" },
  53         { MODEKEYEDIT_ENDOFLINE, "end-of-line" },
  54         { MODEKEYEDIT_ENTER, "enter" },
  55         { MODEKEYEDIT_HISTORYDOWN, "history-down" },
  56         { MODEKEYEDIT_HISTORYUP, "history-up" },
  57         { MODEKEYEDIT_NEXTSPACE, "next-space" },
  58         { MODEKEYEDIT_NEXTSPACEEND, "next-space-end" },
  59         { MODEKEYEDIT_NEXTWORD, "next-word" },
  60         { MODEKEYEDIT_NEXTWORDEND, "next-word-end" },
  61         { MODEKEYEDIT_PASTE, "paste" },
  62         { MODEKEYEDIT_PREVIOUSSPACE, "previous-space" },
  63         { MODEKEYEDIT_PREVIOUSWORD, "previous-word" },
  64         { MODEKEYEDIT_STARTOFLINE, "start-of-line" },
  65         { MODEKEYEDIT_SWITCHMODE, "switch-mode" },
  66         { MODEKEYEDIT_SWITCHMODEAPPEND, "switch-mode-append" },
  67         { MODEKEYEDIT_TRANSPOSECHARS, "transpose-chars" },
  68
  69         { 0, NULL }
  70 };
  71
  72 /* Choice keys command strings. */
  73 const struct mode_key_cmdstr mode_key_cmdstr_choice[] = {
  74         { MODEKEYCHOICE_CANCEL, "cancel" },
  75         { MODEKEYCHOICE_CHOOSE, "choose" },
  76         { MODEKEYCHOICE_DOWN, "down" },
  77         { MODEKEYCHOICE_PAGEDOWN, "page-down" },
  78         { MODEKEYCHOICE_PAGEUP, "page-up" },
  79         { MODEKEYCHOICE_SCROLLDOWN, "scroll-down" },
  80         { MODEKEYCHOICE_SCROLLUP, "scroll-up" },
  81         { MODEKEYCHOICE_UP, "up" },
  82
  83         { 0, NULL }
  84 };
  85
  86 /* Copy keys command strings. */
  87 const struct mode_key_cmdstr mode_key_cmdstr_copy[] = {
  88         { MODEKEYCOPY_BACKTOINDENTATION, "back-to-indentation" },
  89         { MODEKEYCOPY_BOTTOMLINE, "bottom-line" },
  90         { MODEKEYCOPY_CANCEL, "cancel" },
  91         { MODEKEYCOPY_CLEARSELECTION, "clear-selection" },
  92         { MODEKEYCOPY_COPYLINE, "copy-line" },
  93         { MODEKEYCOPY_COPYENDOFLINE, "copy-end-of-line" },
  94         { MODEKEYCOPY_COPYSELECTION, "copy-selection" },
  95         { MODEKEYCOPY_DOWN, "cursor-down" },
  96         { MODEKEYCOPY_ENDOFLINE, "end-of-line" },
  97         { MODEKEYCOPY_GOTOLINE, "goto-line" },
  98         { MODEKEYCOPY_HISTORYBOTTOM, "history-bottom" },
  99         { MODEKEYCOPY_HISTORYTOP, "history-top" },
 100         { MODEKEYCOPY_JUMP, "jump-forward" },
 101         { MODEKEYCOPY_JUMPAGAIN, "jump-again" },
 102         { MODEKEYCOPY_JUMPREVERSE, "jump-reverse" },
 103         { MODEKEYCOPY_JUMPBACK, "jump-backward" },
 104         { MODEKEYCOPY_JUMPTO, "jump-to-forward" },
 105         { MODEKEYCOPY_JUMPTOBACK, "jump-to-backward" },
 106         { MODEKEYCOPY_LEFT, "cursor-left" },
 107         { MODEKEYCOPY_RECTANGLETOGGLE, "rectangle-toggle" },
 108         { MODEKEYCOPY_MIDDLELINE, "middle-line" },
 109         { MODEKEYCOPY_NEXTPAGE, "page-down" },
 110         { MODEKEYCOPY_NEXTSPACE, "next-space" },
 111         { MODEKEYCOPY_NEXTSPACEEND, "next-space-end" },
 112         { MODEKEYCOPY_NEXTWORD, "next-word" },
 113         { MODEKEYCOPY_NEXTWORDEND, "next-word-end" },
 114         { MODEKEYCOPY_PREVIOUSPAGE, "page-up" },
 115         { MODEKEYCOPY_PREVIOUSSPACE, "previous-space" },
 116         { MODEKEYCOPY_PREVIOUSWORD, "previous-word" },
 117         { MODEKEYCOPY_RIGHT, "cursor-right" },
 118         { MODEKEYCOPY_SCROLLDOWN, "scroll-down" },
 119         { MODEKEYCOPY_SCROLLUP, "scroll-up" },
 120         { MODEKEYCOPY_SEARCHAGAIN, "search-again" },
 121         { MODEKEYCOPY_SEARCHDOWN, "search-forward" },
 122         { MODEKEYCOPY_SEARCHREVERSE, "search-reverse" },
 123         { MODEKEYCOPY_SEARCHUP, "search-backward" },
 124         { MODEKEYCOPY_SELECTLINE, "select-line" },
 125         { MODEKEYCOPY_STARTNUMBERPREFIX, "start-number-prefix" },
 126         { MODEKEYCOPY_STARTOFLINE, "start-of-line" },
 127         { MODEKEYCOPY_STARTSELECTION, "begin-selection" },
 128         { MODEKEYCOPY_TOPLINE, "top-line" },
 129         { MODEKEYCOPY_UP, "cursor-up" },
 130
 131         { 0, NULL }
 132 };
 133
 134 /* vi editing keys. */
 135 const struct mode_key_entry mode_key_vi_edit[] = {
 136         { '\003' /* C-c */,     0, MODEKEYEDIT_CANCEL },
 137         { '\010' /* C-h */,     0, MODEKEYEDIT_BACKSPACE },
 138         { '\011' /* Tab */,     0, MODEKEYEDIT_COMPLETE },
 139         { '\025' /* C-u */,     0, MODEKEYEDIT_DELETELINE },
 140         { '\027' /* C-w */,     0, MODEKEYEDIT_DELETEWORD },
 141         { '\033' /* Escape */,  0, MODEKEYEDIT_SWITCHMODE },
 142         { '\r',                 0, MODEKEYEDIT_ENTER },
 143         { KEYC_BSPACE,          0, MODEKEYEDIT_BACKSPACE },
 144         { KEYC_DC,              0, MODEKEYEDIT_DELETE },
 145         { KEYC_DOWN,            0, MODEKEYEDIT_HISTORYDOWN },
 146         { KEYC_LEFT,            0, MODEKEYEDIT_CURSORLEFT },
 147         { KEYC_RIGHT,           0, MODEKEYEDIT_CURSORRIGHT },
 148         { KEYC_UP,              0, MODEKEYEDIT_HISTORYUP },
 149         { KEYC_HOME,            0, MODEKEYEDIT_STARTOFLINE },
 150         { KEYC_END,             0, MODEKEYEDIT_ENDOFLINE },
 151
 152         { '$',                  1, MODEKEYEDIT_ENDOFLINE },
 153         { '0',                  1, MODEKEYEDIT_STARTOFLINE },
 154         { 'B',                  1, MODEKEYEDIT_PREVIOUSSPACE },
 155         { 'D',                  1, MODEKEYEDIT_DELETETOENDOFLINE },
 156         { 'E',                  1, MODEKEYEDIT_NEXTSPACEEND },
 157         { 'W',                  1, MODEKEYEDIT_NEXTSPACE },
 158         { 'X',                  1, MODEKEYEDIT_BACKSPACE },
 159         { '\003' /* C-c */,     1, MODEKEYEDIT_CANCEL },
 160         { '\010' /* C-h */,     1, MODEKEYEDIT_BACKSPACE },
 161         { '\r',                 1, MODEKEYEDIT_ENTER },
 162         { '^',                  1, MODEKEYEDIT_STARTOFLINE },
 163         { 'a',                  1, MODEKEYEDIT_SWITCHMODEAPPEND },
 164         { 'b',                  1, MODEKEYEDIT_PREVIOUSWORD },
 165         { 'd',                  1, MODEKEYEDIT_DELETELINE },
 166         { 'e',                  1, MODEKEYEDIT_NEXTWORDEND },
 167         { 'h',                  1, MODEKEYEDIT_CURSORLEFT },
 168         { 'i',                  1, MODEKEYEDIT_SWITCHMODE },
 169         { 'j',                  1, MODEKEYEDIT_HISTORYDOWN },
 170         { 'k',                  1, MODEKEYEDIT_HISTORYUP },
 171         { 'l',                  1, MODEKEYEDIT_CURSORRIGHT },
 172         { 'p',                  1, MODEKEYEDIT_PASTE },
 173         { 'w',                  1, MODEKEYEDIT_NEXTWORD },
 174         { 'x',                  1, MODEKEYEDIT_DELETE },
 175         { KEYC_BSPACE,          1, MODEKEYEDIT_BACKSPACE },
 176         { KEYC_DC,              1, MODEKEYEDIT_DELETE },
 177         { KEYC_DOWN,            1, MODEKEYEDIT_HISTORYDOWN },
 178         { KEYC_LEFT,            1, MODEKEYEDIT_CURSORLEFT },
 179         { KEYC_RIGHT,           1, MODEKEYEDIT_CURSORRIGHT },
 180         { KEYC_UP,              1, MODEKEYEDIT_HISTORYUP },
 181
 182         { 0,                   -1, 0 }
 183 };
 184 struct mode_key_tree mode_key_tree_vi_edit;
 185
 186 /* vi choice selection keys. */
 187 const struct mode_key_entry mode_key_vi_choice[] = {
 188         { '\002' /* C-b */,     0, MODEKEYCHOICE_PAGEUP },
 189         { '\003' /* C-c */,     0, MODEKEYCHOICE_CANCEL },
 190         { '\005' /* C-e */,     0, MODEKEYCHOICE_SCROLLDOWN },
 191         { '\006' /* C-f */,     0, MODEKEYCHOICE_PAGEDOWN },
 192         { '\031' /* C-y */,     0, MODEKEYCHOICE_SCROLLUP },
 193         { '\r',                 0, MODEKEYCHOICE_CHOOSE },
 194         { 'j',                  0, MODEKEYCHOICE_DOWN },
 195         { 'k',                  0, MODEKEYCHOICE_UP },
 196         { 'q',                  0, MODEKEYCHOICE_CANCEL },
 197         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCHOICE_SCROLLDOWN },
 198         { KEYC_DOWN,            0, MODEKEYCHOICE_DOWN },
 199         { KEYC_NPAGE,           0, MODEKEYCHOICE_PAGEDOWN },
 200         { KEYC_PPAGE,           0, MODEKEYCHOICE_PAGEUP },
 201         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCHOICE_SCROLLUP },
 202         { KEYC_UP,              0, MODEKEYCHOICE_UP },
 203
 204         { 0,                    -1, 0 }
 205 };
 206 struct mode_key_tree mode_key_tree_vi_choice;
 207
 208 /* vi copy mode keys. */
 209 const struct mode_key_entry mode_key_vi_copy[] = {
 210         { ' ',                  0, MODEKEYCOPY_STARTSELECTION },
 211         { '$',                  0, MODEKEYCOPY_ENDOFLINE },
 212         { ',',                  0, MODEKEYCOPY_JUMPREVERSE },
 213         { ';',                  0, MODEKEYCOPY_JUMPAGAIN },
 214         { '/',                  0, MODEKEYCOPY_SEARCHDOWN },
 215         { '0',                  0, MODEKEYCOPY_STARTOFLINE },
 216         { '1',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 217         { '2',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 218         { '3',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 219         { '4',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 220         { '5',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 221         { '6',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 222         { '7',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 223         { '8',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 224         { '9',                  0, MODEKEYCOPY_STARTNUMBERPREFIX },
 225         { ':',                  0, MODEKEYCOPY_GOTOLINE },
 226         { '?',                  0, MODEKEYCOPY_SEARCHUP },
 227         { 'B',                  0, MODEKEYCOPY_PREVIOUSSPACE },
 228         { 'D',                  0, MODEKEYCOPY_COPYENDOFLINE },
 229         { 'E',                  0, MODEKEYCOPY_NEXTSPACEEND },
 230         { 'F',                  0, MODEKEYCOPY_JUMPBACK },
 231         { 'G',                  0, MODEKEYCOPY_HISTORYBOTTOM },
 232         { 'H',                  0, MODEKEYCOPY_TOPLINE },
 233         { 'J',                  0, MODEKEYCOPY_SCROLLDOWN },
 234         { 'K',                  0, MODEKEYCOPY_SCROLLUP },
 235         { 'L',                  0, MODEKEYCOPY_BOTTOMLINE },
 236         { 'M',                  0, MODEKEYCOPY_MIDDLELINE },
 237         { 'N',                  0, MODEKEYCOPY_SEARCHREVERSE },
 238         { 'T',                  0, MODEKEYCOPY_JUMPTOBACK },
 239         { 'W',                  0, MODEKEYCOPY_NEXTSPACE },
 240         { '\002' /* C-b */,     0, MODEKEYCOPY_PREVIOUSPAGE },
 241         { '\003' /* C-c */,     0, MODEKEYCOPY_CANCEL },
 242         { '\004' /* C-d */,     0, MODEKEYCOPY_HALFPAGEDOWN },
 243         { '\005' /* C-e */,     0, MODEKEYCOPY_SCROLLDOWN },
 244         { '\006' /* C-f */,     0, MODEKEYCOPY_NEXTPAGE },
 245         { '\010' /* C-h */,     0, MODEKEYCOPY_LEFT },
 246         { '\025' /* C-u */,     0, MODEKEYCOPY_HALFPAGEUP },
 247         { '\031' /* C-y */,     0, MODEKEYCOPY_SCROLLUP },
 248         { '\033' /* Escape */,  0, MODEKEYCOPY_CLEARSELECTION },
 249         { '\r',                 0, MODEKEYCOPY_COPYSELECTION },
 250         { '^',                  0, MODEKEYCOPY_BACKTOINDENTATION },
 251         { 'b',                  0, MODEKEYCOPY_PREVIOUSWORD },
 252         { 'e',                  0, MODEKEYCOPY_NEXTWORDEND },
 253         { 'f',                  0, MODEKEYCOPY_JUMP },
 254         { 'g',                  0, MODEKEYCOPY_HISTORYTOP },
 255         { 'h',                  0, MODEKEYCOPY_LEFT },
 256         { 'j',                  0, MODEKEYCOPY_DOWN },
 257         { 'k',                  0, MODEKEYCOPY_UP },
 258         { 'l',                  0, MODEKEYCOPY_RIGHT },
 259         { 'n',                  0, MODEKEYCOPY_SEARCHAGAIN },
 260         { 't',                  0, MODEKEYCOPY_JUMPTO },
 261         { 'q',                  0, MODEKEYCOPY_CANCEL },
 262         { 'v',                  0, MODEKEYCOPY_RECTANGLETOGGLE },
 263         { 'w',                  0, MODEKEYCOPY_NEXTWORD },
 264         { KEYC_BSPACE,          0, MODEKEYCOPY_LEFT },
 265         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCOPY_SCROLLDOWN },
 266         { KEYC_DOWN,            0, MODEKEYCOPY_DOWN },
 267         { KEYC_LEFT,            0, MODEKEYCOPY_LEFT },
 268         { KEYC_NPAGE,           0, MODEKEYCOPY_NEXTPAGE },
 269         { KEYC_PPAGE,           0, MODEKEYCOPY_PREVIOUSPAGE },
 270         { KEYC_RIGHT,           0, MODEKEYCOPY_RIGHT },
 271         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCOPY_SCROLLUP },
 272         { KEYC_UP,              0, MODEKEYCOPY_UP },
 273
 274         { 0,                    -1, 0 }
 275 };
 276 struct mode_key_tree mode_key_tree_vi_copy;
 277
 278 /* emacs editing keys. */
 279 const struct mode_key_entry mode_key_emacs_edit[] = {
 280         { '\001' /* C-a */,     0, MODEKEYEDIT_STARTOFLINE },
 281         { '\002' /* C-b */,     0, MODEKEYEDIT_CURSORLEFT },
 282         { '\003' /* C-c */,     0, MODEKEYEDIT_CANCEL },
 283         { '\004' /* C-d */,     0, MODEKEYEDIT_DELETE },
 284         { '\005' /* C-e */,     0, MODEKEYEDIT_ENDOFLINE },
 285         { '\006' /* C-f */,     0, MODEKEYEDIT_CURSORRIGHT },
 286         { '\010' /* C-H */,     0, MODEKEYEDIT_BACKSPACE },
 287         { '\011' /* Tab */,     0, MODEKEYEDIT_COMPLETE },
 288         { '\013' /* C-k */,     0, MODEKEYEDIT_DELETETOENDOFLINE },
 289         { '\016' /* C-n */,     0, MODEKEYEDIT_HISTORYDOWN },
 290         { '\020' /* C-p */,     0, MODEKEYEDIT_HISTORYUP },
 291         { '\024' /* C-t */,     0, MODEKEYEDIT_TRANSPOSECHARS },
 292         { '\025' /* C-u */,     0, MODEKEYEDIT_DELETELINE },
 293         { '\027' /* C-w */,     0, MODEKEYEDIT_DELETEWORD },
 294         { '\031' /* C-y */,     0, MODEKEYEDIT_PASTE },
 295         { '\033' /* Escape */,  0, MODEKEYEDIT_CANCEL },
 296         { '\r',                 0, MODEKEYEDIT_ENTER },
 297         { 'b' | KEYC_ESCAPE,    0, MODEKEYEDIT_PREVIOUSWORD },
 298         { 'f' | KEYC_ESCAPE,    0, MODEKEYEDIT_NEXTWORDEND },
 299         { 'm' | KEYC_ESCAPE,    0, MODEKEYEDIT_STARTOFLINE },
 300         { KEYC_BSPACE,          0, MODEKEYEDIT_BACKSPACE },
 301         { KEYC_DC,              0, MODEKEYEDIT_DELETE },
 302         { KEYC_DOWN,            0, MODEKEYEDIT_HISTORYDOWN },
 303         { KEYC_LEFT,            0, MODEKEYEDIT_CURSORLEFT },
 304         { KEYC_RIGHT,           0, MODEKEYEDIT_CURSORRIGHT },
 305         { KEYC_UP,              0, MODEKEYEDIT_HISTORYUP },
 306         { KEYC_HOME,            0, MODEKEYEDIT_STARTOFLINE },
 307         { KEYC_END,             0, MODEKEYEDIT_ENDOFLINE },
 308
 309         { 0,                   -1, 0 }
 310 };
 311 struct mode_key_tree mode_key_tree_emacs_edit;
 312
 313 /* emacs choice selection keys. */
 314 const struct mode_key_entry mode_key_emacs_choice[] = {
 315         { '\003' /* C-c */,     0, MODEKEYCHOICE_CANCEL },
 316         { '\016' /* C-n */,     0, MODEKEYCHOICE_DOWN },
 317         { '\020' /* C-p */,     0, MODEKEYCHOICE_UP },
 318         { '\026' /* C-v */,     0, MODEKEYCHOICE_PAGEDOWN },
 319         { '\033' /* Escape */,  0, MODEKEYCHOICE_CANCEL },
 320         { '\r',                 0, MODEKEYCHOICE_CHOOSE },
 321         { 'q',                  0, MODEKEYCHOICE_CANCEL },
 322         { 'v' | KEYC_ESCAPE,    0, MODEKEYCHOICE_PAGEUP },
 323         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCHOICE_SCROLLDOWN },
 324         { KEYC_DOWN,            0, MODEKEYCHOICE_DOWN },
 325         { KEYC_NPAGE,           0, MODEKEYCHOICE_PAGEDOWN },
 326         { KEYC_PPAGE,           0, MODEKEYCHOICE_PAGEUP },
 327         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCHOICE_SCROLLUP },
 328         { KEYC_UP,              0, MODEKEYCHOICE_UP },
 329
 330         { 0,                    -1, 0 }
 331 };
 332 struct mode_key_tree mode_key_tree_emacs_choice;
 333
 334 /* emacs copy mode keys. */
 335 const struct mode_key_entry mode_key_emacs_copy[] = {
 336         { ' ',                  0, MODEKEYCOPY_NEXTPAGE },
 337         { ',',                  0, MODEKEYCOPY_JUMPREVERSE },
 338         { ';',                  0, MODEKEYCOPY_JUMPAGAIN },
 339         { '1' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 340         { '2' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 341         { '3' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 342         { '4' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 343         { '5' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 344         { '6' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 345         { '7' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 346         { '8' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 347         { '9' | KEYC_ESCAPE,    0, MODEKEYCOPY_STARTNUMBERPREFIX },
 348         { '<' | KEYC_ESCAPE,    0, MODEKEYCOPY_HISTORYTOP },
 349         { '>' | KEYC_ESCAPE,    0, MODEKEYCOPY_HISTORYBOTTOM },
 350         { 'F',                  0, MODEKEYCOPY_JUMPBACK },
 351         { 'N',                  0, MODEKEYCOPY_SEARCHREVERSE },
 352         { 'R' | KEYC_ESCAPE,    0, MODEKEYCOPY_TOPLINE },
 353         { 'R',                  0, MODEKEYCOPY_RECTANGLETOGGLE },
 354         { 'T',                  0, MODEKEYCOPY_JUMPTOBACK },
 355         { '\000' /* C-Space */, 0, MODEKEYCOPY_STARTSELECTION },
 356         { '\001' /* C-a */,     0, MODEKEYCOPY_STARTOFLINE },
 357         { '\002' /* C-b */,     0, MODEKEYCOPY_LEFT },
 358         { '\003' /* C-c */,     0, MODEKEYCOPY_CANCEL },
 359         { '\005' /* C-e */,     0, MODEKEYCOPY_ENDOFLINE },
 360         { '\006' /* C-f */,     0, MODEKEYCOPY_RIGHT },
 361         { '\007' /* C-g */,     0, MODEKEYCOPY_CLEARSELECTION },
 362         { '\013' /* C-k */,     0, MODEKEYCOPY_COPYENDOFLINE },
 363         { '\016' /* C-n */,     0, MODEKEYCOPY_DOWN },
 364         { '\020' /* C-p */,     0, MODEKEYCOPY_UP },
 365         { '\022' /* C-r */,     0, MODEKEYCOPY_SEARCHUP },
 366         { '\023' /* C-s */,     0, MODEKEYCOPY_SEARCHDOWN },
 367         { '\026' /* C-v */,     0, MODEKEYCOPY_NEXTPAGE },
 368         { '\027' /* C-w */,     0, MODEKEYCOPY_COPYSELECTION },
 369         { '\033' /* Escape */,  0, MODEKEYCOPY_CANCEL },
 370         { 'N',                  0, MODEKEYCOPY_SEARCHREVERSE },
 371         { 'b' | KEYC_ESCAPE,    0, MODEKEYCOPY_PREVIOUSWORD },
 372         { 'f',                  0, MODEKEYCOPY_JUMP },
 373         { 'f' | KEYC_ESCAPE,    0, MODEKEYCOPY_NEXTWORDEND },
 374         { 'g',                  0, MODEKEYCOPY_GOTOLINE },
 375         { 'm' | KEYC_ESCAPE,    0, MODEKEYCOPY_BACKTOINDENTATION },
 376         { 'n',                  0, MODEKEYCOPY_SEARCHAGAIN },
 377         { 'q',                  0, MODEKEYCOPY_CANCEL },
 378         { 'r' | KEYC_ESCAPE,    0, MODEKEYCOPY_MIDDLELINE },
 379         { 't',                  0, MODEKEYCOPY_JUMPTO },
 380         { 'v' | KEYC_ESCAPE,    0, MODEKEYCOPY_PREVIOUSPAGE },
 381         { 'w' | KEYC_ESCAPE,    0, MODEKEYCOPY_COPYSELECTION },
 382         { KEYC_DOWN | KEYC_CTRL,0, MODEKEYCOPY_SCROLLDOWN },
 383         { KEYC_DOWN | KEYC_ESCAPE, 0, MODEKEYCOPY_HALFPAGEDOWN },
 384         { KEYC_DOWN,            0, MODEKEYCOPY_DOWN },
 385         { KEYC_LEFT,            0, MODEKEYCOPY_LEFT },
 386         { KEYC_NPAGE,           0, MODEKEYCOPY_NEXTPAGE },
 387         { KEYC_PPAGE,           0, MODEKEYCOPY_PREVIOUSPAGE },
 388         { KEYC_RIGHT,           0, MODEKEYCOPY_RIGHT },
 389         { KEYC_UP | KEYC_CTRL,  0, MODEKEYCOPY_SCROLLUP },
 390         { KEYC_UP | KEYC_ESCAPE, 0, MODEKEYCOPY_HALFPAGEUP },
 391         { KEYC_UP,              0, MODEKEYCOPY_UP },
 392
 393         { 0,                    -1, 0 }
 394 };
 395 struct mode_key_tree mode_key_tree_emacs_copy;
 396
 397 /* Table mapping key table names to default settings and trees. */
 398 const struct mode_key_table mode_key_tables[] = {
 399         { "vi-edit", mode_key_cmdstr_edit,
 400           &mode_key_tree_vi_edit, mode_key_vi_edit },
 401         { "vi-choice", mode_key_cmdstr_choice,
 402           &mode_key_tree_vi_choice, mode_key_vi_choice },
 403         { "vi-copy", mode_key_cmdstr_copy,
 404           &mode_key_tree_vi_copy, mode_key_vi_copy },
 405         { "emacs-edit", mode_key_cmdstr_edit,
 406           &mode_key_tree_emacs_edit, mode_key_emacs_edit },
 407         { "emacs-choice", mode_key_cmdstr_choice,
 408           &mode_key_tree_emacs_choice, mode_key_emacs_choice },
 409         { "emacs-copy", mode_key_cmdstr_copy,
 410           &mode_key_tree_emacs_copy, mode_key_emacs_copy },
 411
 412         { NULL, NULL, NULL, NULL }
 413 };
 414
 415 SPLAY_GENERATE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
 416
 417 int
 418 mode_key_cmp(struct mode_key_binding *mbind1, struct mode_key_binding *mbind2)
 419 {
 420         if (mbind1->mode != mbind2->mode)
 421                 return (mbind1->mode - mbind2->mode);
 422         return (mbind1->key - mbind2->key);
 423 }
 424
 425 const char *
 426 mode_key_tostring(const struct mode_key_cmdstr *cmdstr, enum mode_key_cmd cmd)
 427 {
 428         for (; cmdstr->name != NULL; cmdstr++) {
 429                 if (cmdstr->cmd == cmd)
 430                         return (cmdstr->name);
 431         }
 432         return (NULL);
 433 }
 434
 435 enum mode_key_cmd
 436 mode_key_fromstring(const struct mode_key_cmdstr *cmdstr, const char *name)
 437 {
 438         for (; cmdstr->name != NULL; cmdstr++) {
 439                 if (strcasecmp(cmdstr->name, name) == 0)
 440                         return (cmdstr->cmd);
 441         }
 442         return (MODEKEY_NONE);
 443 }
 444
 445 const struct mode_key_table *
 446 mode_key_findtable(const char *name)
 447 {
 448         const struct mode_key_table     *mtab;
 449
 450         for (mtab = mode_key_tables; mtab->name != NULL; mtab++) {
 451                 if (strcasecmp(name, mtab->name) == 0)
 452                         return (mtab);
 453         }
 454         return (NULL);
 455 }
 456
 457 void
 458 mode_key_init_trees(void)
 459 {
 460         const struct mode_key_table     *mtab;
 461         const struct mode_key_entry     *ment;
 462         struct mode_key_binding         *mbind;
 463
 464         for (mtab = mode_key_tables; mtab->name != NULL; mtab++) {
 465                 SPLAY_INIT(mtab->tree);
 466                 for (ment = mtab->table; ment->mode != -1; ment++) {
 467                         mbind = xmalloc(sizeof *mbind);
 468                         mbind->key = ment->key;
 469                         mbind->mode = ment->mode;
 470                         mbind->cmd = ment->cmd;
 471                         SPLAY_INSERT(mode_key_tree, mtab->tree, mbind);
 472                 }
 473         }
 474 }
 475
 476 void
 477 mode_key_init(struct mode_key_data *mdata, struct mode_key_tree *mtree)
 478 {
 479         mdata->tree = mtree;
 480         mdata->mode = 0;
 481 }
 482
 483 enum mode_key_cmd
 484 mode_key_lookup(struct mode_key_data *mdata, int key)
 485 {
 486         struct mode_key_binding *mbind, mtmp;
 487
 488         mtmp.key = key;
 489         mtmp.mode = mdata->mode;
 490         if ((mbind = SPLAY_FIND(mode_key_tree, mdata->tree, &mtmp)) == NULL) {
 491                 if (mdata->mode != 0)
 492                         return (MODEKEY_NONE);
 493                 return (MODEKEY_OTHER);
 494         }
 495
 496         switch (mbind->cmd) {
 497         case MODEKEYEDIT_SWITCHMODE:
 498         case MODEKEYEDIT_SWITCHMODEAPPEND:
 499                 mdata->mode = 1 - mdata->mode;
 500                 /* FALLTHROUGH */
 501         default:
 502                 return (mbind->cmd);
 503         }
 504 }