main.c

#include <signal.h>
#include <limits.h>
#include <string.h>
#include <wchar.h>
#include <ctype.h>
#include <errno.h>

#include "ui-curses.h"
#include "vis.h"
#include "vis-lua.h"
#include "text-util.h"
#include "text-motions.h"
#include "text-objects.h"
#include "util.h"
#include "libutf.h"
#include "array.h"

#define PAGE      INT_MAX
#define PAGE_HALF (INT_MAX-1)

/** functions to be called from keybindings */
/* ignore key, do nothing */
static const char *nop(Vis*, const char *keys, const Arg *arg);
/* record/replay macro indicated by keys */
static const char *macro_record(Vis*, const char *keys, const Arg *arg);
static const char *macro_replay(Vis*, const char *keys, const Arg *arg);
/* temporarily suspend the editor and return to the shell, type 'fg' to get back */
static const char *suspend(Vis*, const char *keys, const Arg *arg);
/* switch to mode indicated by arg->i */
static const char *switchmode(Vis*, const char *keys, const Arg *arg);
/* switch to insert mode after performing movement indicated by arg->i */
static const char *insertmode(Vis*, const char *keys, const Arg *arg);
/* set mark indicated by keys to current cursor position */
static const char *mark_set(Vis*, const char *keys, const Arg *arg);
/* add a new line either before or after the one where the cursor currently is */
static const char *openline(Vis*, const char *keys, const Arg *arg);
/* join lines from current cursor position to movement indicated by arg */
static const char *join(Vis*, const char *keys, const Arg *arg);
/* perform last action i.e. action_prev again */
static const char *repeat(Vis*, const char *keys, const Arg *arg);
/* replace character at cursor with one from keys */
static const char *replace(Vis*, const char *keys, const Arg *arg);
/* create a new cursor on the previous (arg->i < 0) or next (arg->i > 0) line */
static const char *cursors_new(Vis*, const char *keys, const Arg *arg);
/* try to align all cursors on the same column */
static const char *cursors_align(Vis*, const char *keys, const Arg *arg);
/* try to align all cursors by inserting the correct amount of white spaces */
static const char *cursors_align_indent(Vis*, const char *keys, const Arg *arg);
/* remove all but the primary cursor and their selections */
static const char *cursors_clear(Vis*, const char *keys, const Arg *arg);
/* remove the least recently added cursor */
static const char *cursors_remove(Vis*, const char *keys, const Arg *arg);
/* remove count (or arg->i)-th cursor column */
static const char *cursors_remove_column(Vis*, const char *keys, const Arg *arg);
/* remove all but the count (or arg->i)-th cursor column */
static const char *cursors_remove_column_except(Vis*, const char *keys, const Arg *arg);
/* move to the previous (arg->i < 0) or next (arg->i > 0) cursor */
static const char *cursors_navigate(Vis*, const char *keys, const Arg *arg);
/* select the word the cursor is currently over */
static const char *cursors_select(Vis*, const char *keys, const Arg *arg);
/* select the next region matching the current selection */
static const char *cursors_select_next(Vis*, const char *keys, const Arg *arg);
/* clear current selection but select next match */
static const char *cursors_select_skip(Vis*, const char *keys, const Arg *arg);
/* rotate selection content count times left (arg->i < 0) or right (arg->i > 0) */
static const char *selections_rotate(Vis*, const char *keys, const Arg *arg);
/* remove leading and trailing white spaces from selections */
static const char *selections_trim(Vis*, const char *keys, const Arg *arg);
/* adjust current used count according to keys */
static const char *count(Vis*, const char *keys, const Arg *arg);
/* move to the count-th line or if not given either to the first (arg->i < 0)
 *  or last (arg->i > 0) line of file */
static const char *gotoline(Vis*, const char *keys, const Arg *arg);
/* set motion type either LINEWISE or CHARWISE via arg->i */
static const char *motiontype(Vis*, const char *keys, const Arg *arg);
/* make the current action use the operator indicated by arg->i */
static const char *operator(Vis*, const char *keys, const Arg *arg);
/* use arg->s as command for the filter operator */
static const char *operator_filter(Vis*, const char *keys, const Arg *arg);
/* blocks to read a key and performs movement indicated by arg->i which
 * should be one of VIS_MOVE_{RIGHT,LEFT}_{TO,TILL} */
static const char *movement_key(Vis*, const char *keys, const Arg *arg);
/* perform the movement as indicated by arg->i */
static const char *movement(Vis*, const char *keys, const Arg *arg);
/* let the current operator affect the range indicated by the text object arg->i */
static const char *textobj(Vis*, const char *keys, const Arg *arg);
/* move to the other end of selected text */
static const char *selection_end(Vis*, const char *keys, const Arg *arg);
/* restore least recently used selection */
static const char *selection_restore(Vis*, const char *keys, const Arg *arg);
/* use register indicated by keys for the current operator */
static const char *reg(Vis*, const char *keys, const Arg *arg);
/* perform arg->i motion with a mark indicated by keys as argument */
static const char *mark_motion(Vis*, const char *keys, const Arg *arg);
/* {un,re}do last action, redraw window */
static const char *undo(Vis*, const char *keys, const Arg *arg);
static const char *redo(Vis*, const char *keys, const Arg *arg);
/* earlier, later action chronologically, redraw window */
static const char *earlier(Vis*, const char *keys, const Arg *arg);
static const char *later(Vis*, const char *keys, const Arg *arg);
/* delete from the current cursor position to the end of
 * movement as indicated by arg->i */
static const char *delete(Vis*, const char *keys, const Arg *arg);
/* insert register content indicated by keys at current cursor position */
static const char *insert_register(Vis*, const char *keys, const Arg *arg);
/* show a user prompt to get input with title arg->s */
static const char *prompt_show(Vis*, const char *keys, const Arg *arg);
/* blocks to read 3 consecutive digits and inserts the corresponding byte value */
static const char *insert_verbatim(Vis*, const char *keys, const Arg *arg);
/* scroll window content according to arg->i which can be either PAGE, PAGE_HALF,
 * or an arbitrary number of lines. a multiplier overrides what is given in arg->i.
 * negative values scroll back, positive forward. */
static const char *wscroll(Vis*, const char *keys, const Arg *arg);
/* similar to scroll, but do only move window content not cursor position */
static const char *wslide(Vis*, const char *keys, const Arg *arg);
/* call editor function as indicated by arg->f */
static const char *call(Vis*, const char *keys, const Arg *arg);
/* call window function as indicated by arg->w */
static const char *window(Vis*, const char *keys, const Arg *arg);
/* show info about Unicode character at cursor position */
static const char *unicode_info(Vis*, const char *keys, const Arg *arg);
/* either go to count % of ile or to matching item */
static const char *percent(Vis*, const char *keys, const Arg *arg);
/* either increment (arg->i > 0) or decrement (arg->i < 0) number under cursor */
static const char *number_increment_decrement(Vis*, const char *keys, const Arg *arg);
/* open a filename under cursor in same (!arg->b) or new (arg->b) window */
static const char *open_file_under_cursor(Vis*, const char *keys, const Arg *arg);

enum {
	VIS_ACTION_EDITOR_SUSPEND,
	VIS_ACTION_CURSOR_CHAR_PREV,
	VIS_ACTION_CURSOR_CHAR_NEXT,
	VIS_ACTION_CURSOR_WORD_START_PREV,
	VIS_ACTION_CURSOR_WORD_START_NEXT,
	VIS_ACTION_CURSOR_WORD_END_PREV,
	VIS_ACTION_CURSOR_WORD_END_NEXT,
	VIS_ACTION_CURSOR_LONGWORD_START_PREV,
	VIS_ACTION_CURSOR_LONGWORD_START_NEXT,
	VIS_ACTION_CURSOR_LONGWORD_END_PREV,
	VIS_ACTION_CURSOR_LONGWORD_END_NEXT,
	VIS_ACTION_CURSOR_LINE_UP,
	VIS_ACTION_CURSOR_LINE_DOWN,
	VIS_ACTION_CURSOR_LINE_START,
	VIS_ACTION_CURSOR_LINE_FINISH,
	VIS_ACTION_CURSOR_LINE_BEGIN,
	VIS_ACTION_CURSOR_LINE_END,
	VIS_ACTION_CURSOR_LINE_LASTCHAR,
	VIS_ACTION_CURSOR_SCREEN_LINE_UP,
	VIS_ACTION_CURSOR_SCREEN_LINE_DOWN,
	VIS_ACTION_CURSOR_SCREEN_LINE_BEGIN,
	VIS_ACTION_CURSOR_SCREEN_LINE_MIDDLE,
	VIS_ACTION_CURSOR_SCREEN_LINE_END,
	VIS_ACTION_CURSOR_PERCENT,
	VIS_ACTION_CURSOR_PARAGRAPH_PREV,
	VIS_ACTION_CURSOR_PARAGRAPH_NEXT,
	VIS_ACTION_CURSOR_SENTENCE_PREV,
	VIS_ACTION_CURSOR_SENTENCE_NEXT,
	VIS_ACTION_CURSOR_FUNCTION_START_PREV,
	VIS_ACTION_CURSOR_FUNCTION_END_PREV,
	VIS_ACTION_CURSOR_FUNCTION_START_NEXT,
	VIS_ACTION_CURSOR_FUNCTION_END_NEXT,
	VIS_ACTION_CURSOR_BLOCK_START,
	VIS_ACTION_CURSOR_BLOCK_END,
	VIS_ACTION_CURSOR_PARENTHESE_START,
	VIS_ACTION_CURSOR_PARENTHESE_END,
	VIS_ACTION_CURSOR_COLUMN,
	VIS_ACTION_CURSOR_LINE_FIRST,
	VIS_ACTION_CURSOR_LINE_LAST,
	VIS_ACTION_CURSOR_WINDOW_LINE_TOP,
	VIS_ACTION_CURSOR_WINDOW_LINE_MIDDLE,
	VIS_ACTION_CURSOR_WINDOW_LINE_BOTTOM,
	VIS_ACTION_CURSOR_SEARCH_NEXT,
	VIS_ACTION_CURSOR_SEARCH_PREV,
	VIS_ACTION_CURSOR_SEARCH_WORD_FORWARD,
	VIS_ACTION_CURSOR_SEARCH_WORD_BACKWARD,
	VIS_ACTION_WINDOW_PAGE_UP,
	VIS_ACTION_WINDOW_PAGE_DOWN,
	VIS_ACTION_WINDOW_HALFPAGE_UP,
	VIS_ACTION_WINDOW_HALFPAGE_DOWN,
	VIS_ACTION_MODE_NORMAL,
	VIS_ACTION_MODE_VISUAL,
	VIS_ACTION_MODE_VISUAL_LINE,
	VIS_ACTION_MODE_INSERT,
	VIS_ACTION_MODE_REPLACE,
	VIS_ACTION_MODE_OPERATOR_PENDING,
	VIS_ACTION_DELETE_CHAR_PREV,
	VIS_ACTION_DELETE_CHAR_NEXT,
	VIS_ACTION_DELETE_LINE_BEGIN,
	VIS_ACTION_DELETE_WORD_PREV,
	VIS_ACTION_JUMPLIST_PREV,
	VIS_ACTION_JUMPLIST_NEXT,
	VIS_ACTION_CHANGELIST_PREV,
	VIS_ACTION_CHANGELIST_NEXT,
	VIS_ACTION_UNDO,
	VIS_ACTION_REDO,
	VIS_ACTION_EARLIER,
	VIS_ACTION_LATER,
	VIS_ACTION_MACRO_RECORD,
	VIS_ACTION_MACRO_REPLAY,
	VIS_ACTION_MARK_SET,
	VIS_ACTION_MARK_GOTO,
	VIS_ACTION_MARK_GOTO_LINE,
	VIS_ACTION_REDRAW,
	VIS_ACTION_REPLACE_CHAR,
	VIS_ACTION_TOTILL_REPEAT,
	VIS_ACTION_TOTILL_REVERSE,
	VIS_ACTION_PROMPT_SEARCH_FORWARD,
	VIS_ACTION_PROMPT_SEARCH_BACKWARD,
	VIS_ACTION_TILL_LEFT,
	VIS_ACTION_TILL_RIGHT,
	VIS_ACTION_TO_LEFT,
	VIS_ACTION_TO_RIGHT,
	VIS_ACTION_REGISTER,
	VIS_ACTION_OPERATOR_CHANGE,
	VIS_ACTION_OPERATOR_DELETE,
	VIS_ACTION_OPERATOR_YANK,
	VIS_ACTION_OPERATOR_SHIFT_LEFT,
	VIS_ACTION_OPERATOR_SHIFT_RIGHT,
	VIS_ACTION_OPERATOR_CASE_LOWER,
	VIS_ACTION_OPERATOR_CASE_UPPER,
	VIS_ACTION_OPERATOR_CASE_SWAP,
	VIS_ACTION_OPERATOR_FILTER,
	VIS_ACTION_OPERATOR_FILTER_FMT,
	VIS_ACTION_COUNT,
	VIS_ACTION_INSERT_NEWLINE,
	VIS_ACTION_INSERT_TAB,
	VIS_ACTION_INSERT_VERBATIM,
	VIS_ACTION_INSERT_REGISTER,
	VIS_ACTION_WINDOW_NEXT,
	VIS_ACTION_WINDOW_PREV,
	VIS_ACTION_APPEND_CHAR_NEXT,
	VIS_ACTION_APPEND_LINE_END,
	VIS_ACTION_INSERT_LINE_START,
	VIS_ACTION_OPEN_LINE_ABOVE,
	VIS_ACTION_OPEN_LINE_BELOW,
	VIS_ACTION_JOIN_LINE_BELOW,
	VIS_ACTION_JOIN_LINES,
	VIS_ACTION_PROMPT_SHOW,
	VIS_ACTION_REPEAT,
	VIS_ACTION_SELECTION_FLIP,
	VIS_ACTION_SELECTION_RESTORE,
	VIS_ACTION_WINDOW_REDRAW_TOP,
	VIS_ACTION_WINDOW_REDRAW_CENTER,
	VIS_ACTION_WINDOW_REDRAW_BOTTOM,
	VIS_ACTION_WINDOW_SLIDE_UP,
	VIS_ACTION_WINDOW_SLIDE_DOWN,
	VIS_ACTION_PUT_AFTER,
	VIS_ACTION_PUT_BEFORE,
	VIS_ACTION_PUT_AFTER_END,
	VIS_ACTION_PUT_BEFORE_END,
	VIS_ACTION_CURSOR_SELECT_WORD,
	VIS_ACTION_CURSORS_NEW_LINE_ABOVE,
	VIS_ACTION_CURSORS_NEW_LINE_ABOVE_FIRST,
	VIS_ACTION_CURSORS_NEW_LINE_BELOW,
	VIS_ACTION_CURSORS_NEW_LINE_BELOW_LAST,
	VIS_ACTION_CURSORS_NEW_LINES_BEGIN,
	VIS_ACTION_CURSORS_NEW_LINES_END,
	VIS_ACTION_CURSORS_NEW_MATCH_NEXT,
	VIS_ACTION_CURSORS_NEW_MATCH_SKIP,
	VIS_ACTION_CURSORS_ALIGN,
	VIS_ACTION_CURSORS_ALIGN_INDENT_LEFT,
	VIS_ACTION_CURSORS_ALIGN_INDENT_RIGHT,
	VIS_ACTION_CURSORS_REMOVE_ALL,
	VIS_ACTION_CURSORS_REMOVE_LAST,
	VIS_ACTION_CURSORS_REMOVE_COLUMN,
	VIS_ACTION_CURSORS_REMOVE_COLUMN_EXCEPT,
	VIS_ACTION_CURSORS_PREV,
	VIS_ACTION_CURSORS_NEXT,
	VIS_ACTION_SELECTIONS_ROTATE_LEFT,
	VIS_ACTION_SELECTIONS_ROTATE_RIGHT,
	VIS_ACTION_SELECTIONS_TRIM,
	VIS_ACTION_TEXT_OBJECT_WORD_OUTER,
	VIS_ACTION_TEXT_OBJECT_WORD_INNER,
	VIS_ACTION_TEXT_OBJECT_LONGWORD_OUTER,
	VIS_ACTION_TEXT_OBJECT_LONGWORD_INNER,
	VIS_ACTION_TEXT_OBJECT_SENTENCE,
	VIS_ACTION_TEXT_OBJECT_PARAGRAPH,
	VIS_ACTION_TEXT_OBJECT_SQUARE_BRACKET_OUTER,
	VIS_ACTION_TEXT_OBJECT_SQUARE_BRACKET_INNER,
	VIS_ACTION_TEXT_OBJECT_PARANTHESE_OUTER,
	VIS_ACTION_TEXT_OBJECT_PARANTHESE_INNER,
	VIS_ACTION_TEXT_OBJECT_ANGLE_BRACKET_OUTER,
	VIS_ACTION_TEXT_OBJECT_ANGLE_BRACKET_INNER,
	VIS_ACTION_TEXT_OBJECT_CURLY_BRACKET_OUTER,
	VIS_ACTION_TEXT_OBJECT_CURLY_BRACKET_INNER,
	VIS_ACTION_TEXT_OBJECT_QUOTE_OUTER,
	VIS_ACTION_TEXT_OBJECT_QUOTE_INNER,
	VIS_ACTION_TEXT_OBJECT_SINGLE_QUOTE_OUTER,
	VIS_ACTION_TEXT_OBJECT_SINGLE_QUOTE_INNER,
	VIS_ACTION_TEXT_OBJECT_BACKTICK_OUTER,
	VIS_ACTION_TEXT_OBJECT_BACKTICK_INNER,
	VIS_ACTION_TEXT_OBJECT_ENTIRE_OUTER,
	VIS_ACTION_TEXT_OBJECT_ENTIRE_INNER,
	VIS_ACTION_TEXT_OBJECT_FUNCTION_OUTER,
	VIS_ACTION_TEXT_OBJECT_FUNCTION_INNER,
	VIS_ACTION_TEXT_OBJECT_LINE_OUTER,
	VIS_ACTION_TEXT_OBJECT_LINE_INNER,
	VIS_ACTION_TEXT_OBJECT_INDENTATION,
	VIS_ACTION_TEXT_OBJECT_SEARCH_FORWARD,
	VIS_ACTION_TEXT_OBJECT_SEARCH_BACKWARD,
	VIS_ACTION_MOTION_CHARWISE,
	VIS_ACTION_MOTION_LINEWISE,
	VIS_ACTION_UNICODE_INFO,
	VIS_ACTION_NUMBER_INCREMENT,
	VIS_ACTION_NUMBER_DECREMENT,
	VIS_ACTION_OPEN_FILE_UNDER_CURSOR,
	VIS_ACTION_OPEN_FILE_UNDER_CURSOR_NEW_WINDOW,
	VIS_ACTION_NOP,
};

static const KeyAction vis_action[] = {
	[VIS_ACTION_EDITOR_SUSPEND] = {
		"editor-suspend",
		"Suspend the editor",
		suspend,
	},
	[VIS_ACTION_CURSOR_CHAR_PREV] = {
		"cursor-char-prev",
		"Move cursor left, to the previous character",
		movement, { .i = VIS_MOVE_CHAR_PREV }
	},
	[VIS_ACTION_CURSOR_CHAR_NEXT] = {
		"cursor-char-next",
		"Move cursor right, to the next character",
		movement, { .i = VIS_MOVE_CHAR_NEXT }
	},
	[VIS_ACTION_CURSOR_WORD_START_PREV] = {
		"cursor-word-start-prev",
		"Move cursor words backwards",
		movement, { .i = VIS_MOVE_WORD_START_PREV }
	},
	[VIS_ACTION_CURSOR_WORD_START_NEXT] = {
		"cursor-word-start-next",
		"Move cursor words forwards",
		movement, { .i = VIS_MOVE_WORD_START_NEXT }
	},
	[VIS_ACTION_CURSOR_WORD_END_PREV] = {
		"cursor-word-end-prev",
		"Move cursor backwards to the end of word",
		movement, { .i = VIS_MOVE_WORD_END_PREV }
	},
	[VIS_ACTION_CURSOR_WORD_END_NEXT] = {
		"cursor-word-end-next",
		"Move cursor forward to the end of word",
		movement, { .i = VIS_MOVE_WORD_END_NEXT }
	},
	[VIS_ACTION_CURSOR_LONGWORD_START_PREV] = {
		"cursor-longword-start-prev",
		"Move cursor WORDS backwards",
		movement, { .i = VIS_MOVE_LONGWORD_START_PREV }
	},
	[VIS_ACTION_CURSOR_LONGWORD_START_NEXT] = {
		"cursor-longword-start-next",
		"Move cursor WORDS forwards",
		movement, { .i = VIS_MOVE_LONGWORD_START_NEXT }
	},
	[VIS_ACTION_CURSOR_LONGWORD_END_PREV] = {
		"cursor-longword-end-prev",
		"Move cursor backwards to the end of WORD",
		movement, { .i = VIS_MOVE_LONGWORD_END_PREV }
	},
	[VIS_ACTION_CURSOR_LONGWORD_END_NEXT] = {
		"cursor-longword-end-next",
		"Move cursor forward to the end of WORD",
		movement, { .i = VIS_MOVE_LONGWORD_END_NEXT }
	},
	[VIS_ACTION_CURSOR_LINE_UP] = {
		"cursor-line-up",
		"Move cursor line upwards",
		movement, { .i = VIS_MOVE_LINE_UP }
	},
	[VIS_ACTION_CURSOR_LINE_DOWN] = {
		"cursor-line-down",
		"Move cursor line downwards",
		movement, { .i = VIS_MOVE_LINE_DOWN }
	},
	[VIS_ACTION_CURSOR_LINE_START] = {
		"cursor-line-start",
		"Move cursor to first non-blank character of the line",
		movement, { .i = VIS_MOVE_LINE_START }
	},
	[VIS_ACTION_CURSOR_LINE_FINISH] = {
		"cursor-line-finish",
		"Move cursor to last non-blank character of the line",
		movement, { .i = VIS_MOVE_LINE_FINISH }
	},
	[VIS_ACTION_CURSOR_LINE_BEGIN] = {
		"cursor-line-begin",
		"Move cursor to first character of the line",
		movement, { .i = VIS_MOVE_LINE_BEGIN }
	},
	[VIS_ACTION_CURSOR_LINE_END] = {
		"cursor-line-end",
		"Move cursor to end of the line",
		movement, { .i = VIS_MOVE_LINE_END }
	},
	[VIS_ACTION_CURSOR_LINE_LASTCHAR] = {
		"cursor-line-lastchar",
		"Move cursor to last character of the line",
		movement, { .i = VIS_MOVE_LINE_LASTCHAR }
	},
	[VIS_ACTION_CURSOR_SCREEN_LINE_UP] = {
		"cursor-sceenline-up",
		"Move cursor screen/display line upwards",
		movement, { .i = VIS_MOVE_SCREEN_LINE_UP }
	},
	[VIS_ACTION_CURSOR_SCREEN_LINE_DOWN] = {
		"cursor-screenline-down",
		"Move cursor screen/display line downwards",
		movement, { .i = VIS_MOVE_SCREEN_LINE_DOWN }
	},
	[VIS_ACTION_CURSOR_SCREEN_LINE_BEGIN] = {
		"cursor-screenline-begin",
		"Move cursor to beginning of screen/display line",
		movement, { .i = VIS_MOVE_SCREEN_LINE_BEGIN }
	},
	[VIS_ACTION_CURSOR_SCREEN_LINE_MIDDLE] = {
		"cursor-screenline-middle",
		"Move cursor to middle of screen/display line",
		movement, { .i = VIS_MOVE_SCREEN_LINE_MIDDLE }
	},
	[VIS_ACTION_CURSOR_SCREEN_LINE_END] = {
		"cursor-screenline-end",
		"Move cursor to end of screen/display line",
		movement, { .i = VIS_MOVE_SCREEN_LINE_END }
	},
	[VIS_ACTION_CURSOR_PERCENT] = {
		"cursor-percent",
		"Move to count % of file or matching item",
		percent
	},
	[VIS_ACTION_CURSOR_PARAGRAPH_PREV] = {
		"cursor-paragraph-prev",
		"Move cursor paragraph backward",
		movement, { .i = VIS_MOVE_PARAGRAPH_PREV }
	},
	[VIS_ACTION_CURSOR_PARAGRAPH_NEXT] = {
		"cursor-paragraph-next",
		"Move cursor paragraph forward",
		movement, { .i = VIS_MOVE_PARAGRAPH_NEXT }
	},
	[VIS_ACTION_CURSOR_SENTENCE_PREV] = {
		"cursor-sentence-prev",
		"Move cursor sentence backward",
		movement, { .i = VIS_MOVE_SENTENCE_PREV }
	},
	[VIS_ACTION_CURSOR_SENTENCE_NEXT] = {
		"cursor-sentence-next",
		"Move cursor sentence forward",
		movement, { .i = VIS_MOVE_SENTENCE_NEXT }
	},
	[VIS_ACTION_CURSOR_FUNCTION_START_PREV] = {
		"cursor-function-start-prev",
		"Move cursor backwards to start of function",
		movement, { .i = VIS_MOVE_FUNCTION_START_PREV }
	},
	[VIS_ACTION_CURSOR_FUNCTION_START_NEXT] = {
		"cursor-function-start-next",
		"Move cursor forwards to start of function",
		movement, { .i = VIS_MOVE_FUNCTION_START_NEXT }
	},
	[VIS_ACTION_CURSOR_FUNCTION_END_PREV] = {
		"cursor-function-end-prev",
		"Move cursor backwards to end of function",
		movement, { .i = VIS_MOVE_FUNCTION_END_PREV }
	},
	[VIS_ACTION_CURSOR_FUNCTION_END_NEXT] = {
		"cursor-function-end-next",
		"Move cursor forwards to end of function",
		movement, { .i = VIS_MOVE_FUNCTION_END_NEXT }
	},
	[VIS_ACTION_CURSOR_BLOCK_START] = {
		"cursor-block-start",
		"Move cursor to the opening curly brace in a block",
		movement, { .i = VIS_MOVE_BLOCK_START }
	},
	[VIS_ACTION_CURSOR_BLOCK_END] = {
		"cursor-block-end",
		"Move cursor to the closing curly brace in a block",
		movement, { .i = VIS_MOVE_BLOCK_END }
	},
	[VIS_ACTION_CURSOR_PARENTHESE_START] = {
		"cursor-parenthese-start",
		"Move cursor to the opening parenthese inside a pair of parentheses",
		movement, { .i = VIS_MOVE_PARENTHESE_START }
	},
	[VIS_ACTION_CURSOR_PARENTHESE_END] = {
		"cursor-parenthese-end",
		"Move cursor to the closing parenthese inside a pair of parentheses",
		movement, { .i = VIS_MOVE_PARENTHESE_END }
	},
	[VIS_ACTION_CURSOR_COLUMN] = {
		"cursor-column",
		"Move cursor to given column of current line",
		movement, { .i = VIS_MOVE_COLUMN }
	},
	[VIS_ACTION_CURSOR_LINE_FIRST] = {
		"cursor-line-first",
		"Move cursor to given line (defaults to first)",
		gotoline, { .i = -1 }
	},
	[VIS_ACTION_CURSOR_LINE_LAST] = {
		"cursor-line-last",
		"Move cursor to given line (defaults to last)",
		gotoline, { .i = +1 }
	},
	[VIS_ACTION_CURSOR_WINDOW_LINE_TOP] = {
		"cursor-window-line-top",
		"Move cursor to top line of the window",
		movement, { .i = VIS_MOVE_WINDOW_LINE_TOP }
	},
	[VIS_ACTION_CURSOR_WINDOW_LINE_MIDDLE] = {
		"cursor-window-line-middle",
		"Move cursor to middle line of the window",
		movement, { .i = VIS_MOVE_WINDOW_LINE_MIDDLE }
	},
	[VIS_ACTION_CURSOR_WINDOW_LINE_BOTTOM] = {
		"cursor-window-line-bottom",
		"Move cursor to bottom line of the window",
		movement, { .i = VIS_MOVE_WINDOW_LINE_BOTTOM }
	},
	[VIS_ACTION_CURSOR_SEARCH_NEXT] = {
		"cursor-search-forward",
		"Move cursor to bottom line of the window",
		movement, { .i = VIS_MOVE_SEARCH_NEXT }
	},
	[VIS_ACTION_CURSOR_SEARCH_PREV] = {
		"cursor-search-backward",
		"Move cursor to bottom line of the window",
		movement, { .i = VIS_MOVE_SEARCH_PREV }
	},
	[VIS_ACTION_CURSOR_SEARCH_WORD_FORWARD] = {
		"cursor-search-word-forward",
		"Move cursor to next occurence of the word under cursor",
		movement, { .i = VIS_MOVE_SEARCH_WORD_FORWARD }
	},
	[VIS_ACTION_CURSOR_SEARCH_WORD_BACKWARD] = {
		"cursor-search-word-backward",
		"Move cursor to previous occurence of the word under cursor",
		 movement, { .i = VIS_MOVE_SEARCH_WORD_BACKWARD }
	},
	[VIS_ACTION_WINDOW_PAGE_UP] = {
		"window-page-up",
		"Scroll window pages backwards (upwards)",
		wscroll, { .i = -PAGE }
	},
	[VIS_ACTION_WINDOW_HALFPAGE_UP] = {
		"window-halfpage-up",
		"Scroll window half pages backwards (upwards)",
		wscroll, { .i = -PAGE_HALF }
	},
	[VIS_ACTION_WINDOW_PAGE_DOWN] = {
		"window-page-down",
		"Scroll window pages forwards (downwards)",
		wscroll, { .i = +PAGE }
	},
	[VIS_ACTION_WINDOW_HALFPAGE_DOWN] = {
		"window-halfpage-down",
		"Scroll window half pages forwards (downwards)",
		wscroll, { .i = +PAGE_HALF }
	},
	[VIS_ACTION_MODE_NORMAL] = {
		"vis-mode-normal",
		"Enter normal mode",
		switchmode, { .i = VIS_MODE_NORMAL }
	},
	[VIS_ACTION_MODE_VISUAL] = {
		"vis-mode-visual-charwise",
		"Enter characterwise visual mode",
		switchmode, { .i = VIS_MODE_VISUAL }
	},
	[VIS_ACTION_MODE_VISUAL_LINE] = {
		"vis-mode-visual-linewise",
		"Enter linewise visual mode",
		switchmode, { .i = VIS_MODE_VISUAL_LINE }
	},
	[VIS_ACTION_MODE_INSERT] = {
		"vis-mode-insert",
		"Enter insert mode",
		switchmode, { .i = VIS_MODE_INSERT }
	},
	[VIS_ACTION_MODE_REPLACE] = {
		"vis-mode-replace",
		"Enter replace mode",
		switchmode, { .i = VIS_MODE_REPLACE }
	},
	[VIS_ACTION_MODE_OPERATOR_PENDING] = {
		"vis-mode-operator-pending",
		"Enter to operator pending mode",
		switchmode, { .i = VIS_MODE_OPERATOR_PENDING }
	},
	[VIS_ACTION_DELETE_CHAR_PREV] = {
		"delete-char-prev",
		"Delete the previous character",
		delete, { .i = VIS_MOVE_CHAR_PREV }
	},
	[VIS_ACTION_DELETE_CHAR_NEXT] = {
		"delete-char-next",
		"Delete the next character",
		delete, { .i = VIS_MOVE_CHAR_NEXT }
	},
	[VIS_ACTION_DELETE_LINE_BEGIN] = {
		"delete-line-begin",
		"Delete until the start of the current line",
		delete, { .i = VIS_MOVE_LINE_BEGIN }
	},
	[VIS_ACTION_DELETE_WORD_PREV] = {
		"delete-word-prev",
		"Delete the previous WORD",
		delete, { .i = VIS_MOVE_LONGWORD_START_PREV }
	},
	[VIS_ACTION_JUMPLIST_PREV] = {
		"jumplist-prev",
		"Go to older cursor position in jump list",
		movement, { .i = VIS_MOVE_JUMPLIST_PREV }
	},
	[VIS_ACTION_JUMPLIST_NEXT] = {
		"jumplist-next",
		"Go to newer cursor position in jump list",
		movement, { .i = VIS_MOVE_JUMPLIST_NEXT }
	},
	[VIS_ACTION_CHANGELIST_PREV] = {
		"changelist-prev",
		"Go to older cursor position in change list",
		movement, { .i = VIS_MOVE_CHANGELIST_PREV }
	},
	[VIS_ACTION_CHANGELIST_NEXT] = {
		"changelist-next",
		"Go to newer cursor position in change list",
		movement, { .i = VIS_MOVE_CHANGELIST_NEXT }
	},
	[VIS_ACTION_UNDO] = {
		"editor-undo",
		"Undo last change",
		undo,
	},
	[VIS_ACTION_REDO] = {
		"editor-redo",
		"Redo last change",
		redo,
	},
	[VIS_ACTION_EARLIER] = {
		"editor-earlier",
		"Goto older text state",
		earlier,
	},
	[VIS_ACTION_LATER] = {
		"editor-later",
		"Goto newer text state",
		later,
	},
	[VIS_ACTION_MACRO_RECORD] = {
		"macro-record",
		"Record macro into given register",
		macro_record,
	},
	[VIS_ACTION_MACRO_REPLAY] = {
		"macro-replay",
		"Replay macro, execute the content of the given register",
		macro_replay,
	},
	[VIS_ACTION_MARK_SET] = {
		"mark-set",
		"Set given mark at current cursor position",
		mark_set,
	},
	[VIS_ACTION_MARK_GOTO] = {
		"mark-goto",
		"Goto the position of the given mark",
		mark_motion, { .i = VIS_MOVE_MARK }
	},
	[VIS_ACTION_MARK_GOTO_LINE] = {
		"mark-goto-line",
		"Goto first non-blank character of the line containing the given mark",
		mark_motion, { .i = VIS_MOVE_MARK_LINE }
	},
	[VIS_ACTION_REDRAW] = {
		"editor-redraw",
		"Redraw current editor content",
		 call, { .f = vis_redraw }
	},
	[VIS_ACTION_REPLACE_CHAR] = {
		"replace-char",
		"Replace the character under the cursor",
		replace,
	},
	[VIS_ACTION_TOTILL_REPEAT] = {
		"totill-repeat",
		"Repeat latest to/till motion",
		movement, { .i = VIS_MOVE_TOTILL_REPEAT }
	},
	[VIS_ACTION_TOTILL_REVERSE] = {
		"totill-reverse",
		"Repeat latest to/till motion but in opposite direction",
		movement, { .i = VIS_MOVE_TOTILL_REVERSE }
	},
	[VIS_ACTION_PROMPT_SEARCH_FORWARD] = {
		"search-forward",
		"Search forward",
		prompt_show, { .s = "/" }
	},
	[VIS_ACTION_PROMPT_SEARCH_BACKWARD] = {
		"search-backward",
		"Search backward",
		prompt_show, { .s = "?" }
	},
	[VIS_ACTION_TILL_LEFT] = {
		"till-left",
		"Till after the occurrence of character to the left",
		movement_key, { .i = VIS_MOVE_LEFT_TILL }
	},
	[VIS_ACTION_TILL_RIGHT] = {
		"till-right",
		"Till before the occurrence of character to the right",
		movement_key, { .i = VIS_MOVE_RIGHT_TILL }
	},
	[VIS_ACTION_TO_LEFT] = {
		"to-left",
		"To the first occurrence of character to the left",
		movement_key, { .i = VIS_MOVE_LEFT_TO }
	},
	[VIS_ACTION_TO_RIGHT] = {
		"to-right",
		"To the first occurrence of character to the right",
		movement_key, { .i = VIS_MOVE_RIGHT_TO }
	},
	[VIS_ACTION_REGISTER] = {
		"register",
		"Use given register for next operator",
		reg,
	},
	[VIS_ACTION_OPERATOR_CHANGE] = {
		"vis-operator-change",
		"Change operator",
		operator, { .i = VIS_OP_CHANGE }
	},
	[VIS_ACTION_OPERATOR_DELETE] = {
		"vis-operator-delete",
		"Delete operator",
		operator, { .i = VIS_OP_DELETE }
	},
	[VIS_ACTION_OPERATOR_YANK] = {
		"vis-operator-yank",
		"Yank operator",
		operator, { .i = VIS_OP_YANK }
	},
	[VIS_ACTION_OPERATOR_SHIFT_LEFT] = {
		"vis-operator-shift-left",
		"Shift left operator",
		operator, { .i = VIS_OP_SHIFT_LEFT }
	},
	[VIS_ACTION_OPERATOR_SHIFT_RIGHT] = {
		"vis-operator-shift-right",
		"Shift right operator",
		operator, { .i = VIS_OP_SHIFT_RIGHT }
	},
	[VIS_ACTION_OPERATOR_CASE_LOWER] = {
		"vis-operator-case-lower",
		"Lowercase operator",
		operator, { .i = VIS_OP_CASE_LOWER }
	},
	[VIS_ACTION_OPERATOR_CASE_UPPER] = {
		"vis-operator-case-upper",
		"Uppercase operator",
		operator, { .i = VIS_OP_CASE_UPPER }
	},
	[VIS_ACTION_OPERATOR_CASE_SWAP] = {
		"vis-operator-case-swap",
		"Swap case operator",
		operator, { .i = VIS_OP_CASE_SWAP }
	},
	[VIS_ACTION_OPERATOR_FILTER] = {
		"vis-operator-filter",
		"Filter operator",
		operator_filter,
	},
	[VIS_ACTION_OPERATOR_FILTER_FMT] = {
		"vis-operator-filter-format",
		"Formating operator, filter range through fmt(1)",
		operator_filter, { .s = "|fmt" }
	},
	[VIS_ACTION_COUNT] = {
		"vis-count",
		"Count specifier",
		count,
	},
	[VIS_ACTION_INSERT_NEWLINE] = {
		"insert-newline",
		"Insert a line break (depending on file type)",
		call, { .f = vis_insert_nl }
	},
	[VIS_ACTION_INSERT_TAB] = {
		"insert-tab",
		"Insert a tab (might be converted to spaces)",
		call, { .f = vis_insert_tab }
	},
	[VIS_ACTION_INSERT_VERBATIM] = {
		"insert-verbatim",
		"Insert Unicode character based on code point",
		insert_verbatim,
	},
	[VIS_ACTION_INSERT_REGISTER] = {
		"insert-register",
		"Insert specified register content",
		insert_register,
	},
	[VIS_ACTION_WINDOW_NEXT] = {
		"window-next",
		"Focus next window",
		call, { .f = vis_window_next }
	},
	[VIS_ACTION_WINDOW_PREV] = {
		"window-prev",
		"Focus previous window",
		call, { .f = vis_window_prev }
	},
	[VIS_ACTION_APPEND_CHAR_NEXT] = {
		"append-char-next",
		"Append text after the cursor",
		insertmode, { .i = VIS_MOVE_CHAR_NEXT }
	},
	[VIS_ACTION_APPEND_LINE_END] = {
		"append-line-end",
		"Append text after the end of the line",
		insertmode, { .i = VIS_MOVE_LINE_END },
	},
	[VIS_ACTION_INSERT_LINE_START] = {
		"insert-line-start",
		"Insert text before the first non-blank in the line",
		insertmode, { .i = VIS_MOVE_LINE_START },
	},
	[VIS_ACTION_OPEN_LINE_ABOVE] = {
		"open-line-above",
		"Begin a new line above the cursor",
		openline, { .i = -1 }
	},
	[VIS_ACTION_OPEN_LINE_BELOW] = {
		"open-line-below",
		"Begin a new line below the cursor",
		openline, { .i = +1 }
	},
	[VIS_ACTION_JOIN_LINE_BELOW] = {
		"join-line-below",
		"Join line(s)",
		join, { .i = VIS_MOVE_LINE_NEXT },
	},
	[VIS_ACTION_JOIN_LINES] = {
		"join-lines",
		"Join selected lines",
		operator, { .i = VIS_OP_JOIN }
	},
	[VIS_ACTION_PROMPT_SHOW] = {
		"prompt-show",
		"Show editor command line prompt",
		prompt_show, { .s = ":" }
	},
	[VIS_ACTION_REPEAT] = {
		"editor-repeat",
		"Repeat latest editor command",
		repeat
	},
	[VIS_ACTION_SELECTION_FLIP] = {
		"selection-flip",
		"Flip selection, move cursor to other end",
		selection_end,
	},
	[VIS_ACTION_SELECTION_RESTORE] = {
		"selection-restore",
		"Restore last selection",
		selection_restore,
	},
	[VIS_ACTION_WINDOW_REDRAW_TOP] = {
		"window-redraw-top",
		"Redraw cursor line at the top of the window",
		window, { .w = view_redraw_top }
	},
	[VIS_ACTION_WINDOW_REDRAW_CENTER] = {
		"window-redraw-center",
		"Redraw cursor line at the center of the window",
		window, { .w = view_redraw_center }
	},
	[VIS_ACTION_WINDOW_REDRAW_BOTTOM] = {
		"window-redraw-bottom",
		"Redraw cursor line at the bottom of the window",
		window, { .w = view_redraw_bottom }
	},
	[VIS_ACTION_WINDOW_SLIDE_UP] = {
		"window-slide-up",
		"Slide window content upwards",
		wslide, { .i = -1 }
	},
	[VIS_ACTION_WINDOW_SLIDE_DOWN] = {
		"window-slide-down",
		"Slide window content downwards",
		wslide, { .i = +1 }
	},
	[VIS_ACTION_PUT_AFTER] = {
		"put-after",
		"Put text after the cursor",
		operator, { .i = VIS_OP_PUT_AFTER }
	},
	[VIS_ACTION_PUT_BEFORE] = {
		"put-before",
		"Put text before the cursor",
		operator, { .i = VIS_OP_PUT_BEFORE }
	},
	[VIS_ACTION_PUT_AFTER_END] = {
		"put-after-end",
		"Put text after the cursor, place cursor after new text",
		operator, { .i = VIS_OP_PUT_AFTER_END }
	},
	[VIS_ACTION_PUT_BEFORE_END] = {
		"put-before-end",
		"Put text before the cursor, place cursor after new text",
		operator, { .i = VIS_OP_PUT_BEFORE_END }
	},
	[VIS_ACTION_CURSOR_SELECT_WORD] = {
		"cursors-select-word",
		"Select word under cursor",
		cursors_select,
	},
	[VIS_ACTION_CURSORS_NEW_LINE_ABOVE] = {
		"cursors-new-lines-above",
		"Create a new cursor on the line above",
		cursors_new, { .i = -1 }
	},
	[VIS_ACTION_CURSORS_NEW_LINE_ABOVE_FIRST] = {
		"cursors-new-lines-above-first",
		"Create a new cursor on the line above the first cursor",
		cursors_new, { .i = INT_MIN }
	},
	[VIS_ACTION_CURSORS_NEW_LINE_BELOW] = {
		"cursor-new-lines-below",
		"Create a new cursor on the line below",
		cursors_new, { .i = +1 }
	},
	[VIS_ACTION_CURSORS_NEW_LINE_BELOW_LAST] = {
		"cursor-new-lines-below-last",
		"Create a new cursor on the line below the last cursor",
		cursors_new, { .i = INT_MAX }
	},
	[VIS_ACTION_CURSORS_NEW_LINES_BEGIN] = {
		"cursors-new-lines-begin",
		"Create a new cursor at the start of every line covered by selection",
		operator, { .i = VIS_OP_CURSOR_SOL }
	},
	[VIS_ACTION_CURSORS_NEW_LINES_END] = {
		"cursors-new-lines-end",
		"Create a new cursor at the end of every line covered by selection",
		operator, { .i = VIS_OP_CURSOR_EOL }
	},
	[VIS_ACTION_CURSORS_NEW_MATCH_NEXT] = {
		"cursors-new-match-next",
		"Select the next region matching the current selection",
		cursors_select_next
	},
	[VIS_ACTION_CURSORS_NEW_MATCH_SKIP] = {
		"cursors-new-match-skip",
		"Clear current selection, but select next match",
		cursors_select_skip,
	},
	[VIS_ACTION_CURSORS_ALIGN] = {
		"cursors-align",
		"Try to align all cursors on the same column",
		cursors_align,
	},
	[VIS_ACTION_CURSORS_ALIGN_INDENT_LEFT] = {
		"cursors-align-indent-left",
		"Left align all cursors/selections by inserting spaces",
		cursors_align_indent, { .i = -1 }
	},
	[VIS_ACTION_CURSORS_ALIGN_INDENT_RIGHT] = {
		"cursors-align-indent-right",
		"Right align all cursors/selections by inserting spaces",
		cursors_align_indent, { .i = +1 }
	},
	[VIS_ACTION_CURSORS_REMOVE_ALL] = {
		"cursors-remove-all",
		"Remove all but the primary cursor",
		cursors_clear,
	},
	[VIS_ACTION_CURSORS_REMOVE_LAST] = {
		"cursors-remove-last",
		"Remove least recently created cursor",
		cursors_remove,
	},
	[VIS_ACTION_CURSORS_REMOVE_COLUMN] = {
		"cursors-remove-column",
		"Remove count cursor column",
		cursors_remove_column, { .i = 1 }
	},
	[VIS_ACTION_CURSORS_REMOVE_COLUMN_EXCEPT] = {
		"cursors-remove-column-except",
		"Remove all but the count cursor column",
		cursors_remove_column_except, { .i = 1 }
	},
	[VIS_ACTION_CURSORS_PREV] = {
		"cursors-prev",
		"Move to the previous cursor",
		cursors_navigate, { .i = -PAGE_HALF }
	},
	[VIS_ACTION_CURSORS_NEXT] = {
		"cursors-next",
		"Move to the next cursor",
		cursors_navigate, { .i = +PAGE_HALF }
	},
	[VIS_ACTION_SELECTIONS_ROTATE_LEFT] = {
		"selections-rotate-left",
		"Rotate selections left",
		selections_rotate, { .i = -1 }
	},
	[VIS_ACTION_SELECTIONS_ROTATE_RIGHT] = {
		"selections-rotate-right",
		"Rotate selections right",
		selections_rotate, { .i = +1 }
	},
	[VIS_ACTION_SELECTIONS_TRIM] = {
		"selections-trim",
		"Remove leading and trailing white space from selections",
		selections_trim
	},
	[VIS_ACTION_TEXT_OBJECT_WORD_OUTER] = {
		"text-object-word-outer",
		"A word leading and trailing whitespace included",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_WORD }
	},
	[VIS_ACTION_TEXT_OBJECT_WORD_INNER] = {
		"text-object-word-inner",
		"A word leading and trailing whitespace excluded",
		textobj, { .i = VIS_TEXTOBJECT_INNER_WORD }
	},
	[VIS_ACTION_TEXT_OBJECT_LONGWORD_OUTER] = {
		"text-object-longword-outer",
		"A WORD leading and trailing whitespace included",
		 textobj, { .i = VIS_TEXTOBJECT_OUTER_LONGWORD }
	},
	[VIS_ACTION_TEXT_OBJECT_LONGWORD_INNER] = {
		"text-object-longword-inner",
		"A WORD leading and trailing whitespace excluded",
		 textobj, { .i = VIS_TEXTOBJECT_INNER_LONGWORD }
	},
	[VIS_ACTION_TEXT_OBJECT_SENTENCE] = {
		"text-object-sentence",
		"A sentence",
		textobj, { .i = VIS_TEXTOBJECT_SENTENCE }
	},
	[VIS_ACTION_TEXT_OBJECT_PARAGRAPH] = {
		"text-object-paragraph",
		"A paragraph",
		textobj, { .i = VIS_TEXTOBJECT_PARAGRAPH }
	},
	[VIS_ACTION_TEXT_OBJECT_SQUARE_BRACKET_OUTER] = {
		"text-object-square-bracket-outer",
		"[] block (outer variant)",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_SQUARE_BRACKET }
	},
	[VIS_ACTION_TEXT_OBJECT_SQUARE_BRACKET_INNER] = {
		"text-object-square-bracket-inner",
		"[] block (inner variant)",
		textobj, { .i = VIS_TEXTOBJECT_INNER_SQUARE_BRACKET }
	},
	[VIS_ACTION_TEXT_OBJECT_PARANTHESE_OUTER] = {
		"text-object-parentheses-outer",
		"() block (outer variant)",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_PARANTHESE }
	},
	[VIS_ACTION_TEXT_OBJECT_PARANTHESE_INNER] = {
		"text-object-parentheses-inner",
		"() block (inner variant)",
		textobj, { .i = VIS_TEXTOBJECT_INNER_PARANTHESE }
	},
	[VIS_ACTION_TEXT_OBJECT_ANGLE_BRACKET_OUTER] = {
		"text-object-angle-bracket-outer",
		"<> block (outer variant)",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_ANGLE_BRACKET }
	},
	[VIS_ACTION_TEXT_OBJECT_ANGLE_BRACKET_INNER] = {
		"text-object-angle-bracket-inner",
		"<> block (inner variant)",
		textobj, { .i = VIS_TEXTOBJECT_INNER_ANGLE_BRACKET }
	},
	[VIS_ACTION_TEXT_OBJECT_CURLY_BRACKET_OUTER] = {
		"text-object-curly-bracket-outer",
		"{} block (outer variant)",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_CURLY_BRACKET }
	},
	[VIS_ACTION_TEXT_OBJECT_CURLY_BRACKET_INNER] = {
		"text-object-curly-bracket-inner",
		"{} block (inner variant)",
		textobj, { .i = VIS_TEXTOBJECT_INNER_CURLY_BRACKET }
	},
	[VIS_ACTION_TEXT_OBJECT_QUOTE_OUTER] = {
		"text-object-quote-outer",
		"A quoted string, including the quotation marks",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_QUOTE }
	},
	[VIS_ACTION_TEXT_OBJECT_QUOTE_INNER] = {
		"text-object-quote-inner",
		"A quoted string, excluding the quotation marks",
		textobj, { .i = VIS_TEXTOBJECT_INNER_QUOTE }
	},
	[VIS_ACTION_TEXT_OBJECT_SINGLE_QUOTE_OUTER] = {
		"text-object-single-quote-outer",
		"A single quoted string, including the quotation marks",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_SINGLE_QUOTE }
	},
	[VIS_ACTION_TEXT_OBJECT_SINGLE_QUOTE_INNER] = {
		"text-object-single-quote-inner",
		"A single quoted string, excluding the quotation marks",
		textobj, { .i = VIS_TEXTOBJECT_INNER_SINGLE_QUOTE }
	},
	[VIS_ACTION_TEXT_OBJECT_BACKTICK_OUTER] = {
		"text-object-backtick-outer",
		"A backtick delimited string (outer variant)",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_BACKTICK }
	},
	[VIS_ACTION_TEXT_OBJECT_BACKTICK_INNER] = {
		"text-object-backtick-inner",
		"A backtick delimited string (inner variant)",
		textobj, { .i = VIS_TEXTOBJECT_INNER_BACKTICK }
	},
	[VIS_ACTION_TEXT_OBJECT_ENTIRE_OUTER] = {
		"text-object-entire-outer",
		"The whole text content",
		textobj, { .i = VIS_TEXTOBJECT_OUTER_ENTIRE }
	},
	[VIS_ACTION_TEXT_OBJECT_ENTIRE_INNER] = {
		"text-object-entire-inner",
		"The whole text content, except for leading and trailing empty lines",
		textobj, { .i = VIS_TEXTOBJECT_INNER_ENTIRE }
	},
	[VIS_ACTION_TEXT_OBJECT_FUNCTION_OUTER] = {
		"text-object-function-outer",
		"A whole C-like function",
		 textobj, { .i = VIS_TEXTOBJECT_OUTER_FUNCTION }
	},
	[VIS_ACTION_TEXT_OBJECT_FUNCTION_INNER] = {
		"text-object-function-inner",
		"A whole C-like function body",
		 textobj, { .i = VIS_TEXTOBJECT_INNER_FUNCTION }
	},
	[VIS_ACTION_TEXT_OBJECT_LINE_OUTER] = {
		"text-object-line-outer",
		"The whole line",
		 textobj, { .i = VIS_TEXTOBJECT_OUTER_LINE }
	},
	[VIS_ACTION_TEXT_OBJECT_LINE_INNER] = {
		"text-object-line-inner",
		"The whole line, excluding leading and trailing whitespace",
		textobj, { .i = VIS_TEXTOBJECT_INNER_LINE }
	},
	[VIS_ACTION_TEXT_OBJECT_INDENTATION] = {
		"text-object-indentation",
		"All adjacent lines with the same indentation level as the current one",
		textobj, { .i = VIS_TEXTOBJECT_INDENTATION }
	},
	[VIS_ACTION_TEXT_OBJECT_SEARCH_FORWARD] = {
		"text-object-search-forward",
		"The next search match in forward direction",
		textobj, { .i = VIS_TEXTOBJECT_SEARCH_FORWARD }
	},
	[VIS_ACTION_TEXT_OBJECT_SEARCH_BACKWARD] = {
		"text-object-search-backward",
		"The next search match in backward direction",
		textobj, { .i = VIS_TEXTOBJECT_SEARCH_BACKWARD }
	},
	[VIS_ACTION_MOTION_CHARWISE] = {
		"motion-charwise",
		"Force motion to be charwise",
		motiontype, { .i = VIS_MOTIONTYPE_CHARWISE }
	},
	[VIS_ACTION_MOTION_LINEWISE] = {
		"motion-linewise",
		"Force motion to be linewise",
		motiontype, { .i = VIS_MOTIONTYPE_LINEWISE }
	},
	[VIS_ACTION_UNICODE_INFO] = {
		"unicode-info",
		"Show Unicode codepoint(s) of character under cursor",
		unicode_info,
	},
	[VIS_ACTION_NUMBER_INCREMENT] = {
		"number-increment",
		"Increment number under cursor",
		number_increment_decrement, { .i = +1 }
	},
	[VIS_ACTION_NUMBER_DECREMENT] = {
		"number-decrement",
		"Decrement number under cursor",
		number_increment_decrement, { .i = -1 }
	},
	[VIS_ACTION_OPEN_FILE_UNDER_CURSOR] = {
		"open-file-under-cursor",
		"Open file under the cursor",
		open_file_under_cursor, { .b = false }
	},
	[VIS_ACTION_OPEN_FILE_UNDER_CURSOR_NEW_WINDOW] = {
		"open-file-under-cursor-new-window",
		"Open file under the cursor in a new window",
		open_file_under_cursor, { .b = true }
	},
	[VIS_ACTION_NOP] = {
		"nop",
		"Ignore key, do nothing",
		nop,
	},
};

#include "config.h"

/** key bindings functions */

static const char *nop(Vis *vis, const char *keys, const Arg *arg) {
	return keys;
}

static const char *key2register(Vis *vis, const char *keys, enum VisRegister *reg) {
	*reg = VIS_REG_INVALID;
	if (!keys[0])
		return NULL;
	if ('a' <= keys[0] && keys[0] <= 'z')
		*reg = keys[0] - 'a';
	else if ('A' <= keys[0] && keys[0] <= 'Z')
		*reg = VIS_REG_A + keys[0] - 'A';
	else if (keys[0] == '*' || keys[0] == '+')
		*reg = VIS_REG_CLIPBOARD;
	else if (keys[0] == '_')
		*reg = VIS_REG_BLACKHOLE;
	else if (keys[0] == '0')
		*reg = VIS_REG_ZERO;
	else if (keys[0] == '@')
		*reg = VIS_MACRO_LAST_RECORDED;
	else if (keys[0] == '/')
		*reg = VIS_REG_SEARCH;
	else if (keys[0] == ':')
		*reg = VIS_REG_COMMAND;
	return keys+1;
}

static const char *macro_record(Vis *vis, const char *keys, const Arg *arg) {
	if (!vis_macro_record_stop(vis)) {
		enum VisRegister reg;
		keys = key2register(vis, keys, &reg);
		vis_macro_record(vis, reg);
	}
	vis_draw(vis);
	return keys;
}

static const char *macro_replay(Vis *vis, const char *keys, const Arg *arg) {
	enum VisRegister reg;
	keys = key2register(vis, keys, &reg);
	vis_macro_replay(vis, reg);
	return keys;
}

static const char *suspend(Vis *vis, const char *keys, const Arg *arg) {
	vis_suspend(vis);
	return keys;
}

static const char *repeat(Vis *vis, const char *keys, const Arg *arg) {
	vis_repeat(vis);
	return keys;
}

static const char *cursors_new(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	for (int count = vis_count_get_default(vis, 1); count > 0; count--) {
		Cursor *cursor = NULL;
		switch (arg->i) {
		case -1:
		case +1:
			cursor = view_cursors_primary_get(view);
			break;
		case INT_MIN:
			cursor = view_cursors(view);
			break;
		case INT_MAX:
			for (Cursor *c = view_cursors(view); c; c = view_cursors_next(c))
				cursor = c;
			break;
		default:
			return keys;
		}
		size_t oldpos = view_cursors_pos(cursor);
		if (arg->i > 0)
			view_line_down(cursor);
		else if (arg->i < 0)
			view_line_up(cursor);
		size_t newpos = view_cursors_pos(cursor);
		view_cursors_to(cursor, oldpos);
		if (!view_cursors_new(view, newpos)) {
			if (arg->i == -1) {
				cursor = view_cursors_prev(cursor);
			} else if (arg->i == +1) {
				cursor = view_cursors_next(cursor);
			}
			view_cursors_primary_set(cursor);
		}
	}
	vis_count_set(vis, VIS_COUNT_UNKNOWN);
	return keys;
}

static const char *cursors_align(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	Text *txt = vis_text(vis);
	int mincol = INT_MAX;
	for (Cursor *c = view_cursors(view); c; c = view_cursors_next(c)) {
		int col = view_cursors_cell_get(c);
		if (col >= 0 && col < mincol)
			mincol = col;
	}
	for (Cursor *c = view_cursors(view); c; c = view_cursors_next(c)) {
		if (view_cursors_cell_set(c, mincol) == -1) {
			size_t pos = view_cursors_pos(c);
			size_t col = text_line_width_set(txt, pos, mincol);
			view_cursors_to(c, col);
		}
	}
	return keys;
}

static const char *cursors_align_indent(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	Text *txt = vis_text(vis);
	bool left_align = arg->i < 0;
	int columns = view_cursors_column_count(view);

	for (int i = 0; i < columns; i++) {
		int mincol = INT_MAX, maxcol = 0;
		for (Cursor *c = view_cursors_column(view, i); c; c = view_cursors_column_next(c, i)) {
			size_t pos;
			Filerange sel = view_cursors_selection_get(c);
			if (text_range_valid(&sel))
				pos = left_align ? sel.start : sel.end;
			else
				pos = view_cursors_pos(c);
			int col = text_line_width_get(txt, pos);
			if (col < mincol)
				mincol = col;
			if (col > maxcol)
				maxcol = col;
		}

		size_t len = maxcol - mincol;
		char *buf = malloc(len+1);
		if (!buf)
			return keys;
		memset(buf, ' ', len);

		for (Cursor *c = view_cursors_column(view, i); c; c = view_cursors_column_next(c, i)) {
			size_t pos, ipos;
			Filerange sel = view_cursors_selection_get(c);
			if (text_range_valid(&sel)) {
				pos = left_align ? sel.start : sel.end;
				ipos = sel.start;
			} else {
				pos = view_cursors_pos(c);
				ipos = pos;
			}
			int col = text_line_width_get(txt, pos);
			if (col < maxcol) {
				size_t off = maxcol - col;
				if (off <= len)
					text_insert(txt, ipos, buf, off);
			}
		}

		free(buf);
	}

	view_draw(view);
	return keys;
}

static const char *cursors_clear(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	if (view_cursors_multiple(view))
		view_cursors_clear(view);
	else
		view_cursors_selection_clear(view_cursors_primary_get(view));
	return keys;
}

static const char *cursors_select(Vis *vis, const char *keys, const Arg *arg) {
	Text *txt = vis_text(vis);
	View *view = vis_view(vis);
	for (Cursor *cursor = view_cursors(view); cursor; cursor = view_cursors_next(cursor)) {
		Filerange sel = view_cursors_selection_get(cursor);
		Filerange word = text_object_word(txt, view_cursors_pos(cursor));
		if (!text_range_valid(&sel) && text_range_valid(&word)) {
			view_cursors_selection_set(cursor, &word);
			view_cursors_to(cursor, text_char_prev(txt, word.end));
		}
	}
	vis_mode_switch(vis, VIS_MODE_VISUAL);
	return keys;
}

static const char *cursors_select_next(Vis *vis, const char *keys, const Arg *arg) {
	Text *txt = vis_text(vis);
	View *view = vis_view(vis);
	Cursor *cursor = view_cursors_primary_get(view);
	Filerange sel = view_cursors_selection_get(cursor);
	if (!text_range_valid(&sel))
		return keys;

	char *buf = text_bytes_alloc0(txt, sel.start, text_range_size(&sel));
	if (!buf)
		return keys;
	Filerange word = text_object_word_find_next(txt, sel.end, buf);
	free(buf);

	if (text_range_valid(&word)) {
		size_t pos = text_char_prev(txt, word.end);
		cursor = view_cursors_new(view, pos);
		if (!cursor)
			return keys;
		view_cursors_selection_set(cursor, &word);
	}
	return keys;
}

static const char *cursors_select_skip(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	Cursor *cursor = view_cursors_primary_get(view);
	keys = cursors_select_next(vis, keys, arg);
	if (cursor != view_cursors_primary_get(view))
		view_cursors_dispose(cursor);
	return keys;
}

static const char *cursors_remove(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	view_cursors_dispose(view_cursors_primary_get(view));
	view_cursor_to(view, view_cursor_get(view));
	return keys;
}

static const char *cursors_remove_column(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	int max = view_cursors_column_count(view);
	int column = vis_count_get_default(vis, arg->i) - 1;
	if (column >= max)
		column = max - 1;
	if (!view_cursors_multiple(view)) {
		vis_mode_switch(vis, VIS_MODE_NORMAL);
		return keys;
	}

	for (Cursor *c = view_cursors_column(view, column), *next; c; c = next) {
		next = view_cursors_column_next(c, column);
		view_cursors_dispose(c);
	}

	vis_count_set(vis, VIS_COUNT_UNKNOWN);
	return keys;
}

static const char *cursors_remove_column_except(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	int max = view_cursors_column_count(view);
	int column = vis_count_get_default(vis, arg->i) - 1;
	if (column >= max)
		column = max - 1;
	if (!view_cursors_multiple(view)) {
		vis_redraw(vis);
		return keys;
	}

	Cursor *cur = view_cursors(view);
	Cursor *col = view_cursors_column(view, column);
	for (Cursor *next; cur; cur = next) {
		next = view_cursors_next(cur);
		if (cur == col)
			col = view_cursors_column_next(col, column);
		else
			view_cursors_dispose(cur);
	}

	vis_count_set(vis, VIS_COUNT_UNKNOWN);
	return keys;
}

static const char *cursors_navigate(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	if (!view_cursors_multiple(view)) {
		Filerange sel = view_selection_get(view);
		if (!text_range_valid(&sel))
			return wscroll(vis, keys, arg);
		return keys;
	}
	Cursor *c = view_cursors_primary_get(view);
	for (int count = vis_count_get_default(vis, 1); count > 0; count--) {
		if (arg->i > 0) {
			c = view_cursors_next(c);
			if (!c)
				c = view_cursors(view);
		} else {
			c = view_cursors_prev(c);
			if (!c) {
				c = view_cursors(view);
				for (Cursor *n = c; n; n = view_cursors_next(n))
					c = n;
			}
		}
	}
	view_cursors_primary_set(c);
	vis_count_set(vis, VIS_COUNT_UNKNOWN);
	return keys;
}

static const char *selections_rotate(Vis *vis, const char *keys, const Arg *arg) {

	typedef struct {
		Cursor *cursor;
		char *data;
		size_t len;
	} Rotate;

	Array arr;
	Text *txt = vis_text(vis);
	View *view = vis_view(vis);
	int columns = view_cursors_column_count(view);
	int selections = columns == 1 ? view_cursors_count(view) : columns;
	int count = vis_count_get_default(vis, 1);
	array_init_sized(&arr, sizeof(Rotate));
	if (!array_reserve(&arr, selections))
		return keys;
	size_t line = 0;

	for (Cursor *c = view_cursors(view), *next; c; c = next) {
		next = view_cursors_next(c);
		size_t line_next = 0;

		Filerange sel = view_cursors_selection_get(c);
		Rotate rot;
		rot.cursor = c;
		rot.len = text_range_size(&sel);
		if ((rot.data = malloc(rot.len)))
			rot.len = text_bytes_get(txt, sel.start, rot.len, rot.data);
		else
			rot.len = 0;
		array_add(&arr, &rot);

		if (!line)
			line = text_lineno_by_pos(txt, view_cursors_pos(c));
		if (next)
			line_next = text_lineno_by_pos(txt, view_cursors_pos(next));
		if (!next || (columns > 1 && line != line_next)) {
			size_t len = array_length(&arr);
			size_t off = arg->i > 0 ? count % len : len - (count % len);
			for (size_t i = 0; i < len; i++) {
				size_t j = (i + off) % len;
				Rotate *oldrot = array_get(&arr, i);
				Rotate *newrot = array_get(&arr, j);
				if (!oldrot || !newrot || oldrot == newrot)
					continue;
				Filerange newsel = view_cursors_selection_get(newrot->cursor);
				if (!text_range_valid(&newsel))
					continue;
				if (!text_delete_range(txt, &newsel))
					continue;
				if (!text_insert(txt, newsel.start, oldrot->data, oldrot->len))
					continue;
				newsel.end = newsel.start + oldrot->len;
				view_cursors_selection_set(newrot->cursor, &newsel);
				view_cursors_selection_sync(newrot->cursor);
				free(oldrot->data);
			}
			array_clear(&arr);
		}
		line = line_next;
	}

	vis_count_set(vis, VIS_COUNT_UNKNOWN);
	return keys;
}

static const char *selections_trim(Vis *vis, const char *keys, const Arg *arg) {
	Text *txt = vis_text(vis);
	View *view = vis_view(vis);
	for (Cursor *c = view_cursors(view), *next; c; c = next) {
		next = view_cursors_next(c);
		Filerange sel = view_cursors_selection_get(c);
		if (!text_range_valid(&sel))
			continue;
		for (char b; sel.start < sel.end && text_byte_get(txt, sel.end-1, &b)
			&& isspace((unsigned char)b); sel.end--);
		for (char b; sel.start <= sel.end && text_byte_get(txt, sel.start, &b)
			&& isspace((unsigned char)b); sel.start++);
		if (sel.start < sel.end) {
			view_cursors_selection_set(c, &sel);
			view_cursors_selection_sync(c);
		} else if (!view_cursors_dispose(c)) {
			vis_mode_switch(vis, VIS_MODE_NORMAL);
		}
	}
	return keys;
}

static const char *replace(Vis *vis, const char *keys, const Arg *arg) {
	if (!keys[0])
		return NULL;
	const char *next = vis_keys_next(vis, keys);
	if (!next)
		return NULL;
	size_t len = next - keys;
	char key[len+1];
	memcpy(key, keys, len);
	key[len] = '\0';
	vis_operator(vis, VIS_OP_REPLACE);
	vis_motion(vis, VIS_MOVE_NOP);
	vis_keys_inject(vis, next, key);
	vis_keys_inject(vis, next+len, "<Escape>");
	return next;
}

static const char *count(Vis *vis, const char *keys, const Arg *arg) {
	int digit = keys[-1] - '0';
	int count = vis_count_get_default(vis, 0);
	if (0 <= digit && digit <= 9) {
		if (digit == 0 && count == 0)
			vis_motion(vis, VIS_MOVE_LINE_BEGIN);
		vis_count_set(vis, count * 10 + digit);
	}
	return keys;
}

static const char *gotoline(Vis *vis, const char *keys, const Arg *arg) {
	if (vis_count_get(vis) != VIS_COUNT_UNKNOWN)
		vis_motion(vis, VIS_MOVE_LINE);
	else if (arg->i < 0)
		vis_motion(vis, VIS_MOVE_FILE_BEGIN);
	else
		vis_motion(vis, VIS_MOVE_FILE_END);
	return keys;
}

static const char *motiontype(Vis *vis, const char *keys, const Arg *arg) {
	vis_motion_type(vis, arg->i);
	return keys;
}

static const char *operator(Vis *vis, const char *keys, const Arg *arg) {
	vis_operator(vis, arg->i);
	return keys;
}

static const char *operator_filter(Vis *vis, const char *keys, const Arg *arg) {
	vis_operator(vis, VIS_OP_FILTER, arg->s);
	return keys;
}

static const char *movement_key(Vis *vis, const char *keys, const Arg *arg) {
	char key[32];
	const char *next;
	if (!keys[0] || !(next = vis_keys_next(vis, keys)))
		return NULL;
	size_t len = next - keys;
	if (len < sizeof key) {
		strncpy(key, keys, len);
		key[len] = '\0';
		vis_motion(vis, arg->i, key);
	}
	return next;
}

static const char *movement(Vis *vis, const char *keys, const Arg *arg) {
	vis_motion(vis, arg->i);
	return keys;
}

static const char *textobj(Vis *vis, const char *keys, const Arg *arg) {
	vis_textobject(vis, arg->i);
	return keys;
}

static const char *selection_end(Vis *vis, const char *keys, const Arg *arg) {
	for (Cursor *c = view_cursors(vis_view(vis)); c; c = view_cursors_next(c))
		view_cursors_selection_swap(c);
	return keys;
}

static const char *selection_restore(Vis *vis, const char *keys, const Arg *arg) {
	Text *txt = vis_text(vis);
	View *view = vis_view(vis);
	for (Cursor *c = view_cursors(view); c; c = view_cursors_next(c))
		view_cursors_selection_restore(c);
	Filerange sel = view_selection_get(view);
	if (text_range_is_linewise(txt, &sel))
		vis_mode_switch(vis, VIS_MODE_VISUAL_LINE);
	else
		vis_mode_switch(vis, VIS_MODE_VISUAL);
	return keys;
}

static const char *reg(Vis *vis, const char *keys, const Arg *arg) {
	enum VisRegister reg;
	keys = key2register(vis, keys, &reg);
	vis_register_set(vis, reg);
	return keys;
}

static const char *key2mark(Vis *vis, const char *keys, int *mark) {
	*mark = VIS_MARK_INVALID;
	if (!keys[0])
		return NULL;
	if (keys[0] >= 'a' && keys[0] <= 'z')
		*mark = keys[0] - 'a';
	else if (keys[0] == '<')
		*mark = VIS_MARK_SELECTION_START;
	else if (keys[0] == '>')
		*mark = VIS_MARK_SELECTION_END;
	return keys+1;
}

static const char *mark_set(Vis *vis, const char *keys, const Arg *arg) {
	int mark;
	keys = key2mark(vis, keys, &mark);
	vis_mark_set(vis, mark, view_cursor_get(vis_view(vis)));
	return keys;
}

static const char *mark_motion(Vis *vis, const char *keys, const Arg *arg) {
	int mark;
	keys = key2mark(vis, keys, &mark);
	vis_motion(vis, arg->i, mark);
	return keys;
}

static const char *undo(Vis *vis, const char *keys, const Arg *arg) {
	size_t pos = text_undo(vis_text(vis));
	if (pos != EPOS) {
		View *view = vis_view(vis);
		if (!view_cursors_multiple(view))
			view_cursor_to(view, pos);
		/* redraw all windows in case some display the same file */
		vis_draw(vis);
	}
	return keys;
}

static const char *redo(Vis *vis, const char *keys, const Arg *arg) {
	size_t pos = text_redo(vis_text(vis));
	if (pos != EPOS) {
		View *view = vis_view(vis);
		if (!view_cursors_multiple(view))
			view_cursor_to(view, pos);
		/* redraw all windows in case some display the same file */
		vis_draw(vis);
	}
	return keys;
}

static const char *earlier(Vis *vis, const char *keys, const Arg *arg) {
	size_t pos = text_earlier(vis_text(vis), vis_count_get_default(vis, 1));
	if (pos != EPOS) {
		view_cursor_to(vis_view(vis), pos);
		/* redraw all windows in case some display the same file */
		vis_draw(vis);
	}
	return keys;
}

static const char *later(Vis *vis, const char *keys, const Arg *arg) {
	size_t pos = text_later(vis_text(vis), vis_count_get_default(vis, 1));
	if (pos != EPOS) {
		view_cursor_to(vis_view(vis), pos);
		/* redraw all windows in case some display the same file */
		vis_draw(vis);
	}
	return keys;
}

static const char *delete(Vis *vis, const char *keys, const Arg *arg) {
	vis_operator(vis, VIS_OP_DELETE);
	vis_motion(vis, arg->i);
	return keys;
}

static const char *insert_register(Vis *vis, const char *keys, const Arg *arg) {
	enum VisRegister regid;
	keys = key2register(vis, keys, &regid);
	size_t len;
	const char *data = vis_register_get(vis, regid, &len);
	vis_insert_key(vis, data, len);
	return keys;
}

static const char *prompt_show(Vis *vis, const char *keys, const Arg *arg) {
	vis_prompt_show(vis, arg->s);
	return keys;
}

static const char *insert_verbatim(Vis *vis, const char *keys, const Arg *arg) {
	Rune rune = 0;
	char buf[4], type = keys[0];
	const char *data = NULL;
	int len = 0, count = 0, base = 0;
	switch (type) {
	case '\0':
		return NULL;
	case 'o':
	case 'O':
		count = 3;
		base = 8;
		break;
	case 'U':
		count = 4;
		/* fall through */
	case 'u':
		count += 4;
		base = 16;
		break;
	case 'x':
	case 'X':
		count = 2;
		base = 16;
		break;
	default:
		if ('0' <= type && type <= '9') {
			rune = type - '0';
			count = 2;
			base = 10;
		}
		break;
	}

	if (base) {
		for (keys++; keys[0] && count > 0; keys++, count--) {
			int v = 0;
			if (base == 8 && '0' <= keys[0] && keys[0] <= '7') {
				v = keys[0] - '0';
			} else if ((base == 10 || base == 16) && '0' <= keys[0] && keys[0] <= '9') {
				v = keys[0] - '0';
			} else if (base == 16 && 'a' <= keys[0] && keys[0] <= 'f') {
				v = 10 + keys[0] - 'a';
			} else if (base == 16 && 'A' <= keys[0] && keys[0] <= 'F') {
				v = 10 + keys[0] - 'A';
			} else {
				count = 0;
				break;
			}
			rune = rune * base + v;
		}

		if (count > 0)
			return NULL;
		if (type == 'u' || type == 'U') {
			len = runetochar(buf, &rune);
		} else {
			buf[0] = rune;
			len = 1;
		}

		data = buf;
	} else {
		const char *next = vis_keys_next(vis, keys);
		if (!next)
			return NULL;
		size_t keylen = next - keys;
		char key[keylen+1];
		memcpy(key, keys, keylen);
		key[keylen] = '\0';

		static const char *keysym[] = {
			"<Enter>", "\n",
			"<Tab>", "\t",
			"<Backspace>", "\b",
			"<Escape>", "\x1b",
			"<DEL>", "\x7f",
			NULL,
		};

		for (const char **k = keysym; k[0]; k += 2) {
			if (strcmp(k[0], key) == 0) {
				data = k[1];
				len = strlen(data);
				keys = next;
				break;
			}
		}
	}

	if (len > 0)
		vis_insert_key(vis, data, len);
	return keys;
}

static int argi2lines(Vis *vis, const Arg *arg) {
	int count = vis_count_get(vis);
	switch (arg->i) {
	case -PAGE:
	case +PAGE:
		return view_height_get(vis_view(vis));
	case -PAGE_HALF:
	case +PAGE_HALF:
		return view_height_get(vis_view(vis))/2;
	default:
		if (count != VIS_COUNT_UNKNOWN)
			return count;
		return arg->i < 0 ? -arg->i : arg->i;
	}
}

static const char *wscroll(Vis *vis, const char *keys, const Arg *arg) {
	if (arg->i >= 0)
		view_scroll_down(vis_view(vis), argi2lines(vis, arg));
	else
		view_scroll_up(vis_view(vis), argi2lines(vis, arg));
	return keys;
}

static const char *wslide(Vis *vis, const char *keys, const Arg *arg) {
	if (arg->i >= 0)
		view_slide_down(vis_view(vis), argi2lines(vis, arg));
	else
		view_slide_up(vis_view(vis), argi2lines(vis, arg));
	return keys;
}

static const char *call(Vis *vis, const char *keys, const Arg *arg) {
	arg->f(vis);
	return keys;
}

static const char *window(Vis *vis, const char *keys, const Arg *arg) {
	arg->w(vis_view(vis));
	return keys;
}

static const char *openline(Vis *vis, const char *keys, const Arg *arg) {
	vis_operator(vis, VIS_OP_INSERT);
	if (arg->i > 0) {
		vis_motion(vis, VIS_MOVE_LINE_END);
		vis_keys_inject(vis, keys, "<insert-newline>");
	} else {
		vis_motion(vis, VIS_MOVE_LINE_BEGIN);
		vis_keys_inject(vis, keys, "<insert-newline><Up>");
	}
	return keys;
}

static const char *join(Vis *vis, const char *keys, const Arg *arg) {
	int count = vis_count_get_default(vis, 0);
	if (count)
		vis_count_set(vis, count-1);
	vis_operator(vis, VIS_OP_JOIN);
	vis_motion(vis, arg->i);
	return keys;
}

static const char *switchmode(Vis *vis, const char *keys, const Arg *arg) {
	vis_mode_switch(vis, arg->i);
	return keys;
}

static const char *insertmode(Vis *vis, const char *keys, const Arg *arg) {
	vis_operator(vis, VIS_OP_INSERT);
	vis_motion(vis, arg->i);
	return keys;
}

static const char *unicode_info(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	Text *txt = vis_text(vis);
	size_t start = view_cursor_get(view);
	size_t end = text_char_next(txt, start);
	char data[end-start], *data_cur = data;
	text_bytes_get(txt, start, end - start, data);
	Iterator it = text_iterator_get(txt, start);
	char info[255] = "", *info_cur = info;
	for (size_t pos = start; it.pos < end; pos = it.pos) {
		text_iterator_codepoint_next(&it, NULL);
		size_t len = it.pos - pos;
		wchar_t wc = 0xFFFD;
		mbtowc(&wc, data_cur, len);
		int width = wcwidth(wc);
		info_cur += snprintf(info_cur, sizeof(info) - (info_cur - info) - 1,
			"<%s%.*s> U+%04x ", width == 0 ? " " : "", (int)len, data_cur, wc);
		data_cur += len;
	}
	vis_info_show(vis, "%s", info);
	return keys;
}

static const char *percent(Vis *vis, const char *keys, const Arg *arg) {
	if (vis_count_get(vis) == VIS_COUNT_UNKNOWN)
		vis_motion(vis, VIS_MOVE_BRACKET_MATCH);
	else
		vis_motion(vis, VIS_MOVE_PERCENT);
	return keys;
}

static const char *number_increment_decrement(Vis *vis, const char *keys, const Arg *arg) {
	View *view = vis_view(vis);
	Text *txt = vis_text(vis);

	int delta = arg->i;
	int count = vis_count_get(vis);
	if (count != 0 && count != VIS_COUNT_UNKNOWN)
		delta *= count;

	for (Cursor *c = view_cursors(view); c; c = view_cursors_next(c)) {
		Filerange r = text_object_number(txt, view_cursors_pos(c));
		if (!text_range_valid(&r))
			continue;
		char *buf = text_bytes_alloc0(txt, r.start, text_range_size(&r));
		if (buf) {
			char *number = buf, fmt[255];
			if (number[0] == '-')
				number++;
			bool octal = number[0] == '0' && ('0' <= number[1] && number[1] <= '7');
			bool hex = number[0] == '0' && (number[1] == 'x' || number[1] == 'X');
			bool dec = !hex && !octal;

			long long value = strtoll(buf, NULL, 0);
			value += delta;
			if (dec) {
				snprintf(fmt, sizeof fmt, "%lld", value);
			} else if (hex) {
				size_t len = strlen(number) - 2;
				snprintf(fmt, sizeof fmt, "0x%0*llx", (int)len, value);
			} else {
				size_t len = strlen(number) - 1;
				snprintf(fmt, sizeof fmt, "0%0*llo", (int)len, value);
			}
			text_delete_range(txt, &r);
			text_insert(txt, r.start, fmt, strlen(fmt));
			view_cursors_to(c, r.start);
		}
		free(buf);
	}

	vis_cancel(vis);

	return keys;
}

static const char *open_file_under_cursor(Vis *vis, const char *keys, const Arg *arg) {
	Win *win = vis_window(vis);
	View *view = vis_view(vis);
	Text *txt = vis_text(vis);

	if (!arg->b && !vis_window_closable(win)) {
		vis_info_show(vis, "No write since last change");
		return keys;
	}

	for (Cursor *c = view_cursors(view); c; c = view_cursors_next(c)) {
		Filerange r = text_object_filename(txt, view_cursors_pos(c));
		if (!text_range_valid(&r))
			continue;
		char *name = text_bytes_alloc0(txt, r.start, text_range_size(&r));
		if (!name)
			continue;

		struct stat st;
		if (stat(name, &st) == -1) {
			vis_info_show(vis, "File `%s' not found", name);
			free(name);
			continue;
		}

		if (!vis_window_new(vis, name)) {
			vis_info_show(vis, "Failed to open `%s': %s", name, strerror(errno));
			free(name);
			continue;
		} else if (!arg->b) {
			vis_window_close(win);
			free(name);
			return keys;
		}

		free(name);
	}

	return keys;
}

static Vis *vis;

static void signal_handler(int signum, siginfo_t *siginfo, void *context) {
	vis_signal_handler(vis, signum, siginfo, context);
}

int main(int argc, char *argv[]) {

	VisEvent event = {
		.vis_start = vis_lua_start,
		.vis_quit = vis_lua_quit,
		.file_open = vis_lua_file_open,
		.file_save = vis_lua_file_save,
		.file_close = vis_lua_file_close,
		.win_open = vis_lua_win_open,
		.win_close = vis_lua_win_close,
	};

	vis = vis_new(ui_curses_new(), &event);
	if (!vis)
		return EXIT_FAILURE;

	for (int i = 0; i < LENGTH(vis_action); i++) {
		const KeyAction *action = &vis_action[i];
		if (!vis_action_register(vis, action))
			vis_die(vis, "Could not register action: %s\n", action->name);
	}

	for (int i = 0; i < LENGTH(default_bindings); i++) {
		for (const KeyBinding **binding = default_bindings[i]; binding && *binding; binding++) {
			for (const KeyBinding *kb = *binding; kb->key; kb++) {
				vis_mode_map(vis, i, kb->key, kb);
			}
		}
	}

	for (const char **k = keymaps; k[0]; k += 2)
		vis_keymap_add(vis, k[0], k[1]);

	/* install signal handlers etc. */
	struct sigaction sa;
	memset(&sa, 0, sizeof sa);
	sa.sa_flags = SA_SIGINFO;
	sa.sa_sigaction = signal_handler;
	if (sigaction(SIGBUS, &sa, NULL) || sigaction(SIGINT, &sa, NULL))
		vis_die(vis, "sigaction: %s", strerror(errno));

	sigset_t blockset;
	sigemptyset(&blockset);
	sigaddset(&blockset, SIGWINCH);
	sigprocmask(SIG_BLOCK, &blockset, NULL);
	signal(SIGPIPE, SIG_IGN);

	int status = vis_run(vis, argc, argv);
	vis_free(vis);
	return status;
}