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tmux/mode-key.c
Nicholas Marriott 61b7dc522d Add a transpose-chars command in edit mode (C-t in emacs mode only). From Kalle 
Olavi Niemitalo.
2009-09-02 06:33:20 +00:00

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/* $OpenBSD$ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <string.h>
#include "tmux.h"
/*
* Mode keys. These are the key bindings used when editing (status prompt), and
* in the modes. They are split into two sets of three tables, one set of three
* for vi and the other for emacs key bindings. The three tables are for
* editing, for menu-like modes (choice, more), and for copy modes (copy,
* scroll).
*
* The fixed tables of struct mode_key_entry below are the defaults: they are
* built into a tree of struct mode_key_binding by mode_key_init_trees, which
* can then be modified.
*
* vi command mode is handled by having a mode flag in the struct which allows
* two sets of bindings to be swapped between. A couple of editing commands
* (MODEKEYEDIT_SWITCHMODE and MODEKEYEDIT_SWITCHMODEAPPEND) are special-cased
* to do this.
*/
/* Edit keys command strings. */
struct mode_key_cmdstr mode_key_cmdstr_edit[] = {
{ MODEKEYEDIT_BACKSPACE, "backspace" },
{ MODEKEYEDIT_CANCEL, "cancel" },
{ MODEKEYEDIT_COMPLETE, "complete" },
{ MODEKEYEDIT_CURSORLEFT, "cursor-left" },
{ MODEKEYEDIT_CURSORRIGHT, "cursor-right" },
{ MODEKEYEDIT_DELETE, "delete" },
{ MODEKEYEDIT_DELETELINE, "delete-line" },
{ MODEKEYEDIT_DELETETOENDOFLINE, "delete-end-of-line" },
{ MODEKEYEDIT_ENDOFLINE, "end-of-line" },
{ MODEKEYEDIT_ENTER, "enter" },
{ MODEKEYEDIT_HISTORYDOWN, "history-down" },
{ MODEKEYEDIT_HISTORYUP, "history-up" },
{ MODEKEYEDIT_PASTE, "paste" },
{ MODEKEYEDIT_STARTOFLINE, "start-of-line" },
{ MODEKEYEDIT_SWITCHMODE, "switch-mode" },
{ MODEKEYEDIT_SWITCHMODEAPPEND, "switch-mode-append" },
{ MODEKEYEDIT_TRANSPOSECHARS, "transpose-chars" },
{ 0, NULL }
};
/* Choice keys command strings. */
struct mode_key_cmdstr mode_key_cmdstr_choice[] = {
{ MODEKEYCHOICE_CANCEL, "cancel" },
{ MODEKEYCHOICE_CHOOSE, "choose" },
{ MODEKEYCHOICE_DOWN, "down" },
{ MODEKEYCHOICE_PAGEDOWN, "page-down" },
{ MODEKEYCHOICE_PAGEUP, "page-up" },
{ MODEKEYCHOICE_UP, "up" },
{ 0, NULL }
};
/* Copy keys command strings. */
struct mode_key_cmdstr mode_key_cmdstr_copy[] = {
{ MODEKEYCOPY_BACKTOINDENTATION, "back-to-indentation" },
{ MODEKEYCOPY_CANCEL, "cancel" },
{ MODEKEYCOPY_CLEARSELECTION, "clear-selection" },
{ MODEKEYCOPY_COPYSELECTION, "copy-selection" },
{ MODEKEYCOPY_DOWN, "cursor-down" },
{ MODEKEYCOPY_ENDOFLINE, "end-of-line" },
{ MODEKEYCOPY_GOTOLINE, "goto-line" },
{ MODEKEYCOPY_LEFT, "cursor-left" },
{ MODEKEYCOPY_NEXTPAGE, "page-down" },
{ MODEKEYCOPY_NEXTWORD, "next-word" },
{ MODEKEYCOPY_PREVIOUSPAGE, "page-up" },
{ MODEKEYCOPY_PREVIOUSWORD, "previous-word" },
{ MODEKEYCOPY_RIGHT, "cursor-right" },
{ MODEKEYCOPY_SEARCHAGAIN, "search-again" },
{ MODEKEYCOPY_SEARCHDOWN, "search-forward" },
{ MODEKEYCOPY_SEARCHUP, "search-backward" },
{ MODEKEYCOPY_STARTOFLINE, "start-of-line" },
{ MODEKEYCOPY_STARTSELECTION, "begin-selection" },
{ MODEKEYCOPY_UP, "cursor-up" },
{ 0, NULL }
};
/* vi editing keys. */
const struct mode_key_entry mode_key_vi_edit[] = {
{ '\003' /* C-c */, 0, MODEKEYEDIT_CANCEL },
{ '\010' /* C-h */, 0, MODEKEYEDIT_BACKSPACE },
{ '\011' /* Tab */, 0, MODEKEYEDIT_COMPLETE },
{ '\033' /* Escape */, 0, MODEKEYEDIT_SWITCHMODE },
{ '\r', 0, MODEKEYEDIT_ENTER },
{ KEYC_BSPACE, 0, MODEKEYEDIT_BACKSPACE },
{ KEYC_DC, 0, MODEKEYEDIT_DELETE },
{ '$', 1, MODEKEYEDIT_ENDOFLINE },
{ '0', 1, MODEKEYEDIT_STARTOFLINE },
{ 'd', 1, MODEKEYEDIT_DELETELINE },
{ 'D', 1, MODEKEYEDIT_DELETETOENDOFLINE },
{ '\003' /* C-c */, 1, MODEKEYEDIT_CANCEL },
{ '\010' /* C-h */, 1, MODEKEYEDIT_BACKSPACE },
{ '\r', 1, MODEKEYEDIT_ENTER },
{ '^', 1, MODEKEYEDIT_STARTOFLINE },
{ 'a', 1, MODEKEYEDIT_SWITCHMODEAPPEND },
{ 'h', 1, MODEKEYEDIT_CURSORLEFT },
{ 'i', 1, MODEKEYEDIT_SWITCHMODE },
{ 'j', 1, MODEKEYEDIT_HISTORYDOWN },
{ 'k', 1, MODEKEYEDIT_HISTORYUP },
{ 'l', 1, MODEKEYEDIT_CURSORRIGHT },
{ 'p', 1, MODEKEYEDIT_PASTE },
{ KEYC_BSPACE, 1, MODEKEYEDIT_BACKSPACE },
{ KEYC_DC, 1, MODEKEYEDIT_DELETE },
{ KEYC_DOWN, 1, MODEKEYEDIT_HISTORYDOWN },
{ KEYC_LEFT, 1, MODEKEYEDIT_CURSORLEFT },
{ KEYC_RIGHT, 1, MODEKEYEDIT_CURSORRIGHT },
{ KEYC_UP, 1, MODEKEYEDIT_HISTORYUP },
{ 0, -1, 0 }
};
struct mode_key_tree mode_key_tree_vi_edit;
/* vi choice selection keys. */
const struct mode_key_entry mode_key_vi_choice[] = {
{ '\003' /* C-c */, 0, MODEKEYCHOICE_CANCEL },
{ '\r', 0, MODEKEYCHOICE_CHOOSE },
{ 'j', 0, MODEKEYCHOICE_DOWN },
{ 'k', 0, MODEKEYCHOICE_UP },
{ 'q', 0, MODEKEYCHOICE_CANCEL },
{ KEYC_DOWN, 0, MODEKEYCHOICE_DOWN },
{ KEYC_NPAGE, 0, MODEKEYCHOICE_PAGEDOWN },
{ KEYC_PPAGE, 0, MODEKEYCHOICE_PAGEUP },
{ KEYC_UP, 0, MODEKEYCHOICE_UP },
{ 0, -1, 0 }
};
struct mode_key_tree mode_key_tree_vi_choice;
/* vi copy mode keys. */
const struct mode_key_entry mode_key_vi_copy[] = {
{ ' ', 0, MODEKEYCOPY_STARTSELECTION },
{ '$', 0, MODEKEYCOPY_ENDOFLINE },
{ '/', 0, MODEKEYCOPY_SEARCHUP },
{ '0', 0, MODEKEYCOPY_STARTOFLINE },
{ '?', 0, MODEKEYCOPY_SEARCHDOWN },
{ '\002' /* C-b */, 0, MODEKEYCOPY_PREVIOUSPAGE },
{ '\003' /* C-c */, 0, MODEKEYCOPY_CANCEL },
{ '\004' /* C-d */, 0, MODEKEYCOPY_HALFPAGEDOWN },
{ '\006' /* C-f */, 0, MODEKEYCOPY_NEXTPAGE },
{ '\010' /* C-h */, 0, MODEKEYCOPY_LEFT },
{ '\025' /* C-u */, 0, MODEKEYCOPY_HALFPAGEUP },
{ '\033' /* Escape */, 0, MODEKEYCOPY_CLEARSELECTION },
{ '\r', 0, MODEKEYCOPY_COPYSELECTION },
{ '^', 0, MODEKEYCOPY_BACKTOINDENTATION },
{ 'b', 0, MODEKEYCOPY_PREVIOUSWORD },
{ 'g', 0, MODEKEYCOPY_GOTOLINE },
{ 'h', 0, MODEKEYCOPY_LEFT },
{ 'j', 0, MODEKEYCOPY_DOWN },
{ 'k', 0, MODEKEYCOPY_UP },
{ 'l', 0, MODEKEYCOPY_RIGHT },
{ 'n', 0, MODEKEYCOPY_SEARCHAGAIN },
{ 'q', 0, MODEKEYCOPY_CANCEL },
{ 'w', 0, MODEKEYCOPY_NEXTWORD },
{ KEYC_BSPACE, 0, MODEKEYCOPY_LEFT },
{ KEYC_DOWN, 0, MODEKEYCOPY_DOWN },
{ KEYC_LEFT, 0, MODEKEYCOPY_LEFT },
{ KEYC_NPAGE, 0, MODEKEYCOPY_NEXTPAGE },
{ KEYC_PPAGE, 0, MODEKEYCOPY_PREVIOUSPAGE },
{ KEYC_RIGHT, 0, MODEKEYCOPY_RIGHT },
{ KEYC_UP, 0, MODEKEYCOPY_UP },
{ 0, -1, 0 }
};
struct mode_key_tree mode_key_tree_vi_copy;
/* emacs editing keys. */
const struct mode_key_entry mode_key_emacs_edit[] = {
{ '\001' /* C-a */, 0, MODEKEYEDIT_STARTOFLINE },
{ '\002' /* C-p */, 0, MODEKEYEDIT_CURSORLEFT },
{ '\003' /* C-c */, 0, MODEKEYEDIT_CANCEL },
{ '\004' /* C-d */, 0, MODEKEYEDIT_DELETE },
{ '\005' /* C-e */, 0, MODEKEYEDIT_ENDOFLINE },
{ '\006' /* C-f */, 0, MODEKEYEDIT_CURSORRIGHT },
{ '\010' /* C-H */, 0, MODEKEYEDIT_BACKSPACE },
{ '\011' /* Tab */, 0, MODEKEYEDIT_COMPLETE },
{ '\013' /* C-k */, 0, MODEKEYEDIT_DELETETOENDOFLINE },
{ '\016' /* C-n */, 0, MODEKEYEDIT_HISTORYDOWN },
{ '\020' /* C-p */, 0, MODEKEYEDIT_HISTORYUP },
{ '\024' /* C-t */, 0, MODEKEYEDIT_TRANSPOSECHARS },
{ '\025' /* C-u */, 0, MODEKEYEDIT_DELETELINE },
{ '\031' /* C-y */, 0, MODEKEYEDIT_PASTE },
{ '\033' /* Escape */, 0, MODEKEYEDIT_CANCEL },
{ '\r', 0, MODEKEYEDIT_ENTER },
{ 'm' | KEYC_ESCAPE, 0, MODEKEYEDIT_STARTOFLINE },
{ KEYC_BSPACE, 0, MODEKEYEDIT_BACKSPACE },
{ KEYC_DC, 0, MODEKEYEDIT_DELETE },
{ KEYC_DOWN, 0, MODEKEYEDIT_HISTORYDOWN },
{ KEYC_LEFT, 0, MODEKEYEDIT_CURSORLEFT },
{ KEYC_RIGHT, 0, MODEKEYEDIT_CURSORRIGHT },
{ KEYC_UP, 0, MODEKEYEDIT_HISTORYUP },
{ 0, -1, 0 }
};
struct mode_key_tree mode_key_tree_emacs_edit;
/* emacs choice selection keys. */
const struct mode_key_entry mode_key_emacs_choice[] = {
{ '\003' /* C-c */, 0, MODEKEYCHOICE_CANCEL },
{ '\033' /* Escape */, 0, MODEKEYCHOICE_CANCEL },
{ '\r', 0, MODEKEYCHOICE_CHOOSE },
{ 'q', 0, MODEKEYCHOICE_CANCEL },
{ KEYC_DOWN, 0, MODEKEYCHOICE_DOWN },
{ KEYC_NPAGE, 0, MODEKEYCHOICE_PAGEDOWN },
{ KEYC_PPAGE, 0, MODEKEYCHOICE_PAGEUP },
{ KEYC_UP, 0, MODEKEYCHOICE_UP },
{ 0, -1, 0 }
};
struct mode_key_tree mode_key_tree_emacs_choice;
/* emacs copy mode keys. */
const struct mode_key_entry mode_key_emacs_copy[] = {
{ ' ', 0, MODEKEYCOPY_NEXTPAGE },
{ '\000' /* C-Space */, 0, MODEKEYCOPY_STARTSELECTION },
{ '\001' /* C-a */, 0, MODEKEYCOPY_STARTOFLINE },
{ '\002' /* C-b */, 0, MODEKEYCOPY_LEFT },
{ '\003' /* C-c */, 0, MODEKEYCOPY_CANCEL },
{ '\005' /* C-e */, 0, MODEKEYCOPY_ENDOFLINE },
{ '\006' /* C-f */, 0, MODEKEYCOPY_RIGHT },
{ '\007' /* C-g */, 0, MODEKEYCOPY_CLEARSELECTION },
{ '\016' /* C-n */, 0, MODEKEYCOPY_DOWN },
{ '\020' /* C-p */, 0, MODEKEYCOPY_UP },
{ '\022' /* C-r */, 0, MODEKEYCOPY_SEARCHUP },
{ '\023' /* C-s */, 0, MODEKEYCOPY_SEARCHDOWN },
{ '\026' /* C-v */, 0, MODEKEYCOPY_NEXTPAGE },
{ '\027' /* C-w */, 0, MODEKEYCOPY_COPYSELECTION },
{ '\033' /* Escape */, 0, MODEKEYCOPY_CANCEL },
{ 'b' | KEYC_ESCAPE, 0, MODEKEYCOPY_PREVIOUSWORD },
{ 'f' | KEYC_ESCAPE, 0, MODEKEYCOPY_NEXTWORD },
{ 'g', 0, MODEKEYCOPY_GOTOLINE },
{ 'm' | KEYC_ESCAPE, 0, MODEKEYCOPY_BACKTOINDENTATION },
{ 'n', 0, MODEKEYCOPY_SEARCHAGAIN },
{ 'q', 0, MODEKEYCOPY_CANCEL },
{ 'v' | KEYC_ESCAPE, 0, MODEKEYCOPY_PREVIOUSPAGE },
{ 'w' | KEYC_ESCAPE, 0, MODEKEYCOPY_COPYSELECTION },
{ KEYC_DOWN | KEYC_ESCAPE, 0, MODEKEYCOPY_HALFPAGEDOWN },
{ KEYC_DOWN, 0, MODEKEYCOPY_DOWN },
{ KEYC_LEFT, 0, MODEKEYCOPY_LEFT },
{ KEYC_NPAGE, 0, MODEKEYCOPY_NEXTPAGE },
{ KEYC_PPAGE, 0, MODEKEYCOPY_PREVIOUSPAGE },
{ KEYC_RIGHT, 0, MODEKEYCOPY_RIGHT },
{ KEYC_UP | KEYC_ESCAPE, 0, MODEKEYCOPY_HALFPAGEUP },
{ KEYC_UP, 0, MODEKEYCOPY_UP },
{ 0, -1, 0 }
};
struct mode_key_tree mode_key_tree_emacs_copy;
/* Table mapping key table names to default settings and trees. */
const struct mode_key_table mode_key_tables[] = {
{ "vi-edit", mode_key_cmdstr_edit,
&mode_key_tree_vi_edit, mode_key_vi_edit },
{ "vi-choice", mode_key_cmdstr_choice,
&mode_key_tree_vi_choice, mode_key_vi_choice },
{ "vi-copy", mode_key_cmdstr_copy,
&mode_key_tree_vi_copy, mode_key_vi_copy },
{ "emacs-edit", mode_key_cmdstr_edit,
&mode_key_tree_emacs_edit, mode_key_emacs_edit },
{ "emacs-choice", mode_key_cmdstr_choice,
&mode_key_tree_emacs_choice, mode_key_emacs_choice },
{ "emacs-copy", mode_key_cmdstr_copy,
&mode_key_tree_emacs_copy, mode_key_emacs_copy },
{ NULL, NULL, NULL, NULL }
};
SPLAY_GENERATE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
int
mode_key_cmp(struct mode_key_binding *mbind1, struct mode_key_binding *mbind2)
{
if (mbind1->mode != mbind2->mode)
return (mbind1->mode - mbind2->mode);
return (mbind1->key - mbind2->key);
}
const char *
mode_key_tostring(struct mode_key_cmdstr *cmdstr, enum mode_key_cmd cmd)
{
for (; cmdstr->name != NULL; cmdstr++) {
if (cmdstr->cmd == cmd)
return (cmdstr->name);
}
return (NULL);
}
enum mode_key_cmd
mode_key_fromstring(struct mode_key_cmdstr *cmdstr, const char *name)
{
for (; cmdstr->name != NULL; cmdstr++) {
if (strcasecmp(cmdstr->name, name) == 0)
return (cmdstr->cmd);
}
return (MODEKEY_NONE);
}
const struct mode_key_table *
mode_key_findtable(const char *name)
{
const struct mode_key_table *mtab;
for (mtab = mode_key_tables; mtab->name != NULL; mtab++) {
if (strcasecmp(name, mtab->name) == 0)
return (mtab);
}
return (NULL);
}
void
mode_key_init_trees(void)
{
const struct mode_key_table *mtab;
const struct mode_key_entry *ment;
struct mode_key_binding *mbind;
for (mtab = mode_key_tables; mtab->name != NULL; mtab++) {
SPLAY_INIT(mtab->tree);
for (ment = mtab->table; ment->mode != -1; ment++) {
mbind = xmalloc(sizeof *mbind);
mbind->key = ment->key;
mbind->mode = ment->mode;
mbind->cmd = ment->cmd;
SPLAY_INSERT(mode_key_tree, mtab->tree, mbind);
}
}
}
void
mode_key_free_trees(void)
{
const struct mode_key_table *mtab;
struct mode_key_binding *mbind;
for (mtab = mode_key_tables; mtab->name != NULL; mtab++) {
while (!SPLAY_EMPTY(mtab->tree)) {
mbind = SPLAY_ROOT(mtab->tree);
SPLAY_REMOVE(mode_key_tree, mtab->tree, mbind);
xfree(mbind);
}
}
}
void
mode_key_init(struct mode_key_data *mdata, struct mode_key_tree *mtree)
{
mdata->tree = mtree;
mdata->mode = 0;
}
enum mode_key_cmd
mode_key_lookup(struct mode_key_data *mdata, int key)
{
struct mode_key_binding *mbind, mtmp;
mtmp.key = key;
mtmp.mode = mdata->mode;
if ((mbind = SPLAY_FIND(mode_key_tree, mdata->tree, &mtmp)) == NULL) {
if (mdata->mode != 0)
return (MODEKEY_NONE);
return (MODEKEY_OTHER);
}
switch (mbind->cmd) {
case MODEKEYEDIT_SWITCHMODE:
case MODEKEYEDIT_SWITCHMODEAPPEND:
mdata->mode = 1 - mdata->mode;
/* FALLTHROUGH */
default:
return (mbind->cmd);
}
}
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