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/* this file is included from sam.c */
#include <termkey.h>
#include "vis-lua.h"
// FIXME: avoid this redirection?
typedef struct {
CommandDef def;
VisCommandFunction *func;
void *data;
} CmdUser;
static void cmdfree(CmdUser *cmd) {
if (!cmd)
return;
free((char*)cmd->def.name);
free(VIS_HELP_USE((char*)cmd->def.help));
free(cmd);
}
bool vis_cmd_register(Vis *vis, const char *name, const char *help, void *data, VisCommandFunction *func) {
if (!name)
return false;
if (!vis->usercmds && !(vis->usercmds = map_new()))
return false;
CmdUser *cmd = calloc(1, sizeof *cmd);
if (!cmd)
return false;
if (!(cmd->def.name = strdup(name)))
goto err;
#if CONFIG_HELP
if (help && !(cmd->def.help = strdup(help)))
goto err;
#endif
cmd->def.flags = CMD_ARGV|CMD_FORCE|CMD_ONCE|CMD_ADDRESS_ALL;
cmd->def.func = cmd_user;
cmd->func = func;
cmd->data = data;
if (!map_put(vis->cmds, name, &cmd->def))
goto err;
if (!map_put(vis->usercmds, name, cmd)) {
map_delete(vis->cmds, name);
goto err;
}
return true;
err:
cmdfree(cmd);
return false;
}
bool vis_cmd_unregister(Vis *vis, const char *name) {
if (!name)
return true;
CmdUser *cmd = map_get(vis->usercmds, name);
if (!cmd)
return false;
if (!map_delete(vis->cmds, name))
return false;
if (!map_delete(vis->usercmds, name))
return false;
cmdfree(cmd);
return true;
}
static void option_free(OptionDef *opt) {
if (!opt)
return;
for (size_t i = 0; i < LENGTH(options); i++) {
if (opt == &options[i])
return;
}
for (const char **name = opt->names; *name; name++)
free((char*)*name);
free(VIS_HELP_USE((char*)opt->help));
free(opt);
}
bool vis_option_register(Vis *vis, const char *names[], enum VisOption flags,
VisOptionFunction *func, void *context, const char *help) {
if (!names || !names[0])
return false;
for (const char **name = names; *name; name++) {
if (map_get(vis->options, *name))
return false;
}
OptionDef *opt = calloc(1, sizeof *opt);
if (!opt)
return false;
for (size_t i = 0; i < LENGTH(opt->names)-1 && names[i]; i++) {
if (!(opt->names[i] = strdup(names[i])))
goto err;
}
opt->flags = flags;
opt->func = func;
opt->context = context;
#if CONFIG_HELP
if (help && !(opt->help = strdup(help)))
goto err;
#endif
for (const char **name = names; *name; name++)
map_put(vis->options, *name, opt);
return true;
err:
option_free(opt);
return false;
}
bool vis_option_unregister(Vis *vis, const char *name) {
OptionDef *opt = map_get(vis->options, name);
if (!opt)
return false;
for (const char **alias = opt->names; *alias; alias++) {
if (!map_delete(vis->options, *alias))
return false;
}
option_free(opt);
return true;
}
static bool cmd_user(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
CmdUser *user = map_get(vis->usercmds, argv[0]);
return user && user->func(vis, win, user->data, cmd->flags == '!', argv, sel, range);
}
static void windows_arrange(Vis *vis, enum UiLayout layout) {
vis->ui->arrange(vis->ui, layout);
}
static void tabwidth_set(Vis *vis, int tabwidth) {
if (tabwidth < 1 || tabwidth > 8)
return;
for (Win *win = vis->windows; win; win = win->next)
view_tabwidth_set(win->view, tabwidth);
vis->tabwidth = tabwidth;
}
/* parse human-readable boolean value in s. If successful, store the result in
* outval and return true. Else return false and leave outval alone. */
static bool parse_bool(const char *s, bool *outval) {
for (const char **t = (const char*[]){"1", "true", "yes", "on", NULL}; *t; t++) {
if (!strcasecmp(s, *t)) {
*outval = true;
return true;
}
}
for (const char **f = (const char*[]){"0", "false", "no", "off", NULL}; *f; f++) {
if (!strcasecmp(s, *f)) {
*outval = false;
return true;
}
}
return false;
}
static bool cmd_set(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (!argv[1] || !argv[1][0] || argv[3]) {
vis_info_show(vis, "Expecting: set option [value]");
return false;
}
char name[256];
strncpy(name, argv[1], sizeof(name)-1);
char *lastchar = &name[strlen(name)-1];
bool toggle = (*lastchar == '!');
if (toggle)
*lastchar = '\0';
OptionDef *opt = map_closest(vis->options, name);
if (!opt) {
vis_info_show(vis, "Unknown option: `%s'", name);
return false;
}
if (!win && (opt->flags & VIS_OPTION_NEED_WINDOW)) {
vis_info_show(vis, "Need active window for `:set %s'", name);
return false;
}
if (toggle) {
if (!(opt->flags & VIS_OPTION_TYPE_BOOL)) {
vis_info_show(vis, "Only boolean options can be toggled");
return false;
}
if (argv[2]) {
vis_info_show(vis, "Can not specify option value when toggling");
return false;
}
}
Arg arg;
if (opt->flags & VIS_OPTION_TYPE_STRING) {
if (!(opt->flags & VIS_OPTION_VALUE_OPTIONAL) && !argv[2]) {
vis_info_show(vis, "Expecting string option value");
return false;
}
arg.s = argv[2];
} else if (opt->flags & VIS_OPTION_TYPE_BOOL) {
if (!argv[2]) {
arg.b = !toggle;
} else if (!parse_bool(argv[2], &arg.b)) {
vis_info_show(vis, "Expecting boolean option value not: `%s'", argv[2]);
return false;
}
} else if (opt->flags & VIS_OPTION_TYPE_NUMBER) {
if (!argv[2]) {
vis_info_show(vis, "Expecting number");
return false;
}
char *ep;
errno = 0;
long lval = strtol(argv[2], &ep, 10);
if (argv[2][0] == '\0' || *ep != '\0') {
vis_info_show(vis, "Invalid number");
return false;
}
if ((errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) ||
(lval > INT_MAX || lval < INT_MIN)) {
vis_info_show(vis, "Number overflow");
return false;
}
if (lval < 0) {
vis_info_show(vis, "Expecting positive number");
return false;
}
arg.i = lval;
} else {
return false;
}
size_t opt_index = 0;
for (; opt_index < LENGTH(options); opt_index++) {
if (opt == &options[opt_index])
break;
}
switch (opt_index) {
case OPTION_SHELL:
{
char *shell = strdup(arg.s);
if (!shell) {
vis_info_show(vis, "Failed to change shell");
return false;
}
free(vis->shell);
vis->shell = shell;
break;
}
case OPTION_ESCDELAY:
{
TermKey *termkey = vis->ui->termkey_get(vis->ui);
termkey_set_waittime(termkey, arg.i);
break;
}
case OPTION_EXPANDTAB:
vis->expandtab = toggle ? !vis->expandtab : arg.b;
break;
case OPTION_AUTOINDENT:
vis->autoindent = toggle ? !vis->autoindent : arg.b;
break;
case OPTION_TABWIDTH:
tabwidth_set(vis, arg.i);
break;
case OPTION_SHOW_SPACES:
case OPTION_SHOW_TABS:
case OPTION_SHOW_NEWLINES:
case OPTION_SHOW_EOF:
{
const int values[] = {
[OPTION_SHOW_SPACES] = UI_OPTION_SYMBOL_SPACE,
[OPTION_SHOW_TABS] = UI_OPTION_SYMBOL_TAB|UI_OPTION_SYMBOL_TAB_FILL,
[OPTION_SHOW_NEWLINES] = UI_OPTION_SYMBOL_EOL,
[OPTION_SHOW_EOF] = UI_OPTION_SYMBOL_EOF,
};
int flags = view_options_get(win->view);
if (arg.b || (toggle && !(flags & values[opt_index])))
flags |= values[opt_index];
else
flags &= ~values[opt_index];
view_options_set(win->view, flags);
break;
}
case OPTION_NUMBER: {
enum UiOption opt = view_options_get(win->view);
if (arg.b || (toggle && !(opt & UI_OPTION_LINE_NUMBERS_ABSOLUTE))) {
opt &= ~UI_OPTION_LINE_NUMBERS_RELATIVE;
opt |= UI_OPTION_LINE_NUMBERS_ABSOLUTE;
} else {
opt &= ~UI_OPTION_LINE_NUMBERS_ABSOLUTE;
}
view_options_set(win->view, opt);
break;
}
case OPTION_NUMBER_RELATIVE: {
enum UiOption opt = view_options_get(win->view);
if (arg.b || (toggle && !(opt & UI_OPTION_LINE_NUMBERS_RELATIVE))) {
opt &= ~UI_OPTION_LINE_NUMBERS_ABSOLUTE;
opt |= UI_OPTION_LINE_NUMBERS_RELATIVE;
} else {
opt &= ~UI_OPTION_LINE_NUMBERS_RELATIVE;
}
view_options_set(win->view, opt);
break;
}
case OPTION_CURSOR_LINE: {
enum UiOption opt = view_options_get(win->view);
if (arg.b || (toggle && !(opt & UI_OPTION_CURSOR_LINE)))
opt |= UI_OPTION_CURSOR_LINE;
else
opt &= ~UI_OPTION_CURSOR_LINE;
view_options_set(win->view, opt);
break;
}
case OPTION_COLOR_COLUMN:
view_colorcolumn_set(win->view, arg.i);
break;
case OPTION_SAVE_METHOD:
if (strcmp("auto", arg.s) == 0) {
win->file->save_method = TEXT_SAVE_AUTO;
} else if (strcmp("atomic", arg.s) == 0) {
win->file->save_method = TEXT_SAVE_ATOMIC;
} else if (strcmp("inplace", arg.s) == 0) {
win->file->save_method = TEXT_SAVE_INPLACE;
} else {
vis_info_show(vis, "Invalid save method `%s', expected "
"'auto', 'atomic' or 'inplace'", arg.s);
return false;
}
break;
case OPTION_LOAD_METHOD:
if (strcmp("auto", arg.s) == 0) {
vis->load_method = TEXT_LOAD_AUTO;
} else if (strcmp("read", arg.s) == 0) {
vis->load_method = TEXT_LOAD_READ;
} else if (strcmp("mmap", arg.s) == 0) {
vis->load_method = TEXT_LOAD_MMAP;
} else {
vis_info_show(vis, "Invalid load method `%s', expected "
"'auto', 'read' or 'mmap'", arg.s);
return false;
}
break;
case OPTION_CHANGE_256COLORS:
vis->change_colors = toggle ? !vis->change_colors : arg.b;
break;
case OPTION_LAYOUT: {
enum UiLayout layout;
if (strcmp("h", arg.s) == 0) {
layout = UI_LAYOUT_HORIZONTAL;
} else if (strcmp("v", arg.s) == 0) {
layout = UI_LAYOUT_VERTICAL;
} else {
vis_info_show(vis, "Invalid layout `%s', expected 'h' or 'v'", arg.s);
return false;
}
windows_arrange(vis, layout);
break;
}
case OPTION_IGNORECASE:
vis->ignorecase = toggle ? !vis->ignorecase : arg.b;
break;
default:
if (!opt->func)
return false;
return opt->func(vis, win, opt->context, toggle, opt->flags, name, &arg);
}
return true;
}
static bool is_file_pattern(const char *pattern) {
if (!pattern)
return false;
struct stat meta;
if (stat(pattern, &meta) == 0 && S_ISDIR(meta.st_mode))
return true;
for (char special[] = "*?[{$~", *s = special; *s; s++) {
if (strchr(pattern, *s))
return true;
}
return false;
}
static const char *file_open_dialog(Vis *vis, const char *pattern) {
static char name[PATH_MAX];
name[0] = '\0';
if (!is_file_pattern(pattern))
return pattern;
Buffer bufcmd, bufout, buferr;
buffer_init(&bufcmd);
buffer_init(&bufout);
buffer_init(&buferr);
if (!buffer_put0(&bufcmd, VIS_OPEN " ") || !buffer_append0(&bufcmd, pattern ? pattern : ""))
return NULL;
Filerange empty = text_range_new(0,0);
int status = vis_pipe(vis, vis->win->file, &empty,
(const char*[]){ buffer_content0(&bufcmd), NULL },
&bufout, read_buffer, &buferr, read_buffer);
if (status == 0)
strncpy(name, buffer_content0(&bufout), sizeof(name)-1);
else if (status != 1)
vis_info_show(vis, "Command failed %s", buffer_content0(&buferr));
buffer_release(&bufcmd);
buffer_release(&bufout);
buffer_release(&buferr);
for (char *end = name+strlen(name)-1; end >= name && isspace((unsigned char)*end); end--)
*end = '\0';
return name[0] ? name : NULL;
}
static bool openfiles(Vis *vis, const char **files) {
for (; *files; files++) {
const char *file = file_open_dialog(vis, *files);
if (!file)
return false;
errno = 0;
if (!vis_window_new(vis, file)) {
vis_info_show(vis, "Could not open `%s' %s", file,
errno ? strerror(errno) : "");
return false;
}
}
return true;
}
static bool cmd_open(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (!argv[1])
return vis_window_new(vis, NULL);
return openfiles(vis, &argv[1]);
}
static void info_unsaved_changes(Vis *vis) {
vis_info_show(vis, "No write since last change (add ! to override)");
}
static bool cmd_edit(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (argv[2]) {
vis_info_show(vis, "Only 1 filename allowed");
return false;
}
Win *oldwin = win;
if (!oldwin)
return false;
if (cmd->flags != '!' && !vis_window_closable(oldwin)) {
info_unsaved_changes(vis);
return false;
}
if (!argv[1]) {
if (oldwin->file->refcount > 1) {
vis_info_show(vis, "Can not reload file being opened multiple times");
return false;
}
return vis_window_reload(oldwin);
}
if (!openfiles(vis, &argv[1]))
return false;
if (vis->win != oldwin) {
Win *newwin = vis->win;
vis_window_swap(oldwin, newwin);
vis_window_close(oldwin);
vis_window_focus(newwin);
}
return vis->win != oldwin;
}
static bool cmd_read(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
bool ret = false;
const size_t first_file = 3;
const char *args[MAX_ARGV] = { argv[0], "cat", "--" };
const char **name = argv[1] ? &argv[1] : (const char*[]){ ".", NULL };
for (size_t i = first_file; *name && i < LENGTH(args)-1; name++, i++) {
const char *file = file_open_dialog(vis, *name);
if (!file || !(args[i] = strdup(file)))
goto err;
}
args[LENGTH(args)-1] = NULL;
ret = cmd_pipein(vis, win, cmd, args, sel, range);
err:
for (size_t i = first_file; i < LENGTH(args); i++)
free((char*)args[i]);
return ret;
}
static bool has_windows(Vis *vis) {
for (Win *win = vis->windows; win; win = win->next) {
if (!win->file->internal)
return true;
}
return false;
}
static bool cmd_quit(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (cmd->flags != '!' && !vis_window_closable(win)) {
info_unsaved_changes(vis);
return false;
}
vis_window_close(win);
if (!has_windows(vis))
vis_exit(vis, argv[1] ? atoi(argv[1]) : EXIT_SUCCESS);
return true;
}
static bool cmd_qall(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
for (Win *next, *win = vis->windows; win; win = next) {
next = win->next;
if (!win->file->internal && (!text_modified(win->file->text) || cmd->flags == '!'))
vis_window_close(win);
}
if (!has_windows(vis)) {
vis_exit(vis, argv[1] ? atoi(argv[1]) : EXIT_SUCCESS);
return true;
} else {
info_unsaved_changes(vis);
return false;
}
}
static bool cmd_split(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (!win)
return false;
enum UiOption options = view_options_get(win->view);
windows_arrange(vis, UI_LAYOUT_HORIZONTAL);
if (!argv[1])
return vis_window_split(win);
bool ret = openfiles(vis, &argv[1]);
if (ret)
view_options_set(vis->win->view, options);
return ret;
}
static bool cmd_vsplit(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (!win)
return false;
enum UiOption options = view_options_get(win->view);
windows_arrange(vis, UI_LAYOUT_VERTICAL);
if (!argv[1])
return vis_window_split(win);
bool ret = openfiles(vis, &argv[1]);
if (ret)
view_options_set(vis->win->view, options);
return ret;
}
static bool cmd_new(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
windows_arrange(vis, UI_LAYOUT_HORIZONTAL);
return vis_window_new(vis, NULL);
}
static bool cmd_vnew(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
windows_arrange(vis, UI_LAYOUT_VERTICAL);
return vis_window_new(vis, NULL);
}
static bool cmd_wq(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (!win)
return false;
File *file = win->file;
bool unmodified = file->fd == -1 && !file->name && !text_modified(file->text);
if (unmodified || cmd_write(vis, win, cmd, argv, sel, range))
return cmd_quit(vis, win, cmd, (const char*[]){argv[0], NULL}, sel, range);
return false;
}
static bool cmd_earlier_later(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (!win)
return false;
Text *txt = win->file->text;
char *unit = "";
long count = 1;
size_t pos = EPOS;
if (argv[1]) {
errno = 0;
count = strtol(argv[1], &unit, 10);
if (errno || unit == argv[1] || count < 0) {
vis_info_show(vis, "Invalid number");
return false;
}
if (*unit) {
while (*unit && isspace((unsigned char)*unit))
unit++;
switch (*unit) {
case 'd': count *= 24; /* fall through */
case 'h': count *= 60; /* fall through */
case 'm': count *= 60; /* fall through */
case 's': break;
default:
vis_info_show(vis, "Unknown time specifier (use: s,m,h or d)");
return false;
}
if (argv[0][0] == 'e')
count = -count; /* earlier, move back in time */
pos = text_restore(txt, text_state(txt) + count);
}
}
if (!*unit) {
VisCountIterator it = vis_count_iterator_init(vis, count);
while (vis_count_iterator_next(&it)) {
if (argv[0][0] == 'e')
pos = text_earlier(txt);
else
pos = text_later(txt);
}
}
struct tm tm;
time_t state = text_state(txt);
char buf[32];
strftime(buf, sizeof buf, "State from %H:%M", localtime_r(&state, &tm));
vis_info_show(vis, "%s", buf);
return pos != EPOS;
}
static bool print_keylayout(const char *key, void *value, void *data) {
return text_appendf(data, " %-18s\t%s\n", key[0] == ' ' ? "␣" : key, (char*)value);
}
static bool print_keybinding(const char *key, void *value, void *data) {
KeyBinding *binding = value;
const char *desc = binding->alias;
if (!desc && binding->action)
desc = VIS_HELP_USE(binding->action->help);
return text_appendf(data, " %-18s\t%s\n", key[0] == ' ' ? "␣" : key, desc ? desc : "");
}
static void print_mode(Mode *mode, Text *txt) {
if (!map_empty(mode->bindings))
text_appendf(txt, "\n %s\n\n", mode->name);
map_iterate(mode->bindings, print_keybinding, txt);
}
static bool print_action(const char *key, void *value, void *data) {
const char *help = VIS_HELP_USE(((KeyAction*)value)->help);
return text_appendf(data, " %-30s\t%s\n", key, help ? help : "");
}
static bool print_cmd(const char *key, void *value, void *data) {
CommandDef *cmd = value;
const char *help = VIS_HELP_USE(cmd->help);
char usage[256];
snprintf(usage, sizeof usage, "%s%s%s%s%s%s%s",
cmd->name,
(cmd->flags & CMD_FORCE) ? "[!]" : "",
(cmd->flags & CMD_TEXT) ? "/text/" : "",
(cmd->flags & CMD_REGEX) ? "/regexp/" : "",
(cmd->flags & CMD_CMD) ? " command" : "",
(cmd->flags & CMD_SHELL) ? (!strcmp(cmd->name, "s") ? "/regexp/text/" : " shell-command") : "",
(cmd->flags & CMD_ARGV) ? " [args...]" : "");
return text_appendf(data, " %-30s %s\n", usage, help ? help : "");
}
static bool print_option(const char *key, void *value, void *txt) {
char desc[256];
const OptionDef *opt = value;
const char *help = VIS_HELP_USE(opt->help);
if (strcmp(key, opt->names[0]))
return true;
snprintf(desc, sizeof desc, "%s%s%s%s%s",
opt->names[0],
opt->names[1] ? "|" : "",
opt->names[1] ? opt->names[1] : "",
opt->flags & VIS_OPTION_TYPE_BOOL ? " on|off" : "",
opt->flags & VIS_OPTION_TYPE_NUMBER ? " nn" : "");
return text_appendf(txt, " %-30s %s\n", desc, help ? help : "");
}
static void print_symbolic_keys(Vis *vis, Text *txt) {
static const int keys[] = {
TERMKEY_SYM_BACKSPACE,
TERMKEY_SYM_TAB,
TERMKEY_SYM_ENTER,
TERMKEY_SYM_ESCAPE,
//TERMKEY_SYM_SPACE,
TERMKEY_SYM_DEL,
TERMKEY_SYM_UP,
TERMKEY_SYM_DOWN,
TERMKEY_SYM_LEFT,
TERMKEY_SYM_RIGHT,
TERMKEY_SYM_BEGIN,
TERMKEY_SYM_FIND,
TERMKEY_SYM_INSERT,
TERMKEY_SYM_DELETE,
TERMKEY_SYM_SELECT,
TERMKEY_SYM_PAGEUP,
TERMKEY_SYM_PAGEDOWN,
TERMKEY_SYM_HOME,
TERMKEY_SYM_END,
TERMKEY_SYM_CANCEL,
TERMKEY_SYM_CLEAR,
TERMKEY_SYM_CLOSE,
TERMKEY_SYM_COMMAND,
TERMKEY_SYM_COPY,
TERMKEY_SYM_EXIT,
TERMKEY_SYM_HELP,
TERMKEY_SYM_MARK,
TERMKEY_SYM_MESSAGE,
TERMKEY_SYM_MOVE,
TERMKEY_SYM_OPEN,
TERMKEY_SYM_OPTIONS,
TERMKEY_SYM_PRINT,
TERMKEY_SYM_REDO,
TERMKEY_SYM_REFERENCE,
TERMKEY_SYM_REFRESH,
TERMKEY_SYM_REPLACE,
TERMKEY_SYM_RESTART,
TERMKEY_SYM_RESUME,
TERMKEY_SYM_SAVE,
TERMKEY_SYM_SUSPEND,
TERMKEY_SYM_UNDO,
TERMKEY_SYM_KP0,
TERMKEY_SYM_KP1,
TERMKEY_SYM_KP2,
TERMKEY_SYM_KP3,
TERMKEY_SYM_KP4,
TERMKEY_SYM_KP5,
TERMKEY_SYM_KP6,
TERMKEY_SYM_KP7,
TERMKEY_SYM_KP8,
TERMKEY_SYM_KP9,
TERMKEY_SYM_KPENTER,
TERMKEY_SYM_KPPLUS,
TERMKEY_SYM_KPMINUS,
TERMKEY_SYM_KPMULT,
TERMKEY_SYM_KPDIV,
TERMKEY_SYM_KPCOMMA,
TERMKEY_SYM_KPPERIOD,
TERMKEY_SYM_KPEQUALS,
};
TermKey *termkey = vis->ui->termkey_get(vis->ui);
text_appendf(txt, " ␣ (a literal \" \" space symbol must be used to refer to <Space>)\n");
for (size_t i = 0; i < LENGTH(keys); i++) {
text_appendf(txt, " <%s>\n", termkey_get_keyname(termkey, keys[i]));
}
}
static bool cmd_help(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
if (!vis_window_new(vis, NULL))
return false;
Text *txt = vis->win->file->text;
text_appendf(txt, "vis %s (PID: %ld)\n\n", VERSION, (long)getpid());
text_appendf(txt, " Modes\n\n");
for (int i = 0; i < LENGTH(vis_modes); i++) {
Mode *mode = &vis_modes[i];
if (mode->help)
text_appendf(txt, " %-18s\t%s\n", mode->name, mode->help);
}
if (!map_empty(vis->keymap)) {
text_appendf(txt, "\n Layout specific mappings (affects all modes except INSERT/REPLACE)\n\n");
map_iterate(vis->keymap, print_keylayout, txt);
}
print_mode(&vis_modes[VIS_MODE_NORMAL], txt);
print_mode(&vis_modes[VIS_MODE_OPERATOR_PENDING], txt);
print_mode(&vis_modes[VIS_MODE_VISUAL], txt);
print_mode(&vis_modes[VIS_MODE_INSERT], txt);
text_appendf(txt, "\n :-Commands\n\n");
map_iterate(vis->cmds, print_cmd, txt);
text_appendf(txt, "\n Marks\n\n");
text_appendf(txt, " a-z General purpose marks\n");
for (size_t i = 0; i < LENGTH(vis_marks); i++) {
const char *help = VIS_HELP_USE(vis_marks[i].help);
text_appendf(txt, " %c %s\n", vis_marks[i].name, help ? help : "");
}
text_appendf(txt, "\n Registers\n\n");
text_appendf(txt, " a-z General purpose registers\n");
text_appendf(txt, " A-Z Append to corresponding general purpose register\n");
for (size_t i = 0; i < LENGTH(vis_registers); i++) {
const char *help = VIS_HELP_USE(vis_registers[i].help);
text_appendf(txt, " %c %s\n", vis_registers[i].name, help ? help : "");
}
text_appendf(txt, "\n :set command options\n\n");
map_iterate(vis->options, print_option, txt);
text_appendf(txt, "\n Key binding actions\n\n");
map_iterate(vis->actions, print_action, txt);
text_appendf(txt, "\n Symbolic keys usable for key bindings "
"(prefix with C-, S-, and M- for Ctrl, Shift and Alt respectively)\n\n");
print_symbolic_keys(vis, txt);
char *paths[] = { NULL, NULL };
char *paths_description[] = {
"Lua paths used to load runtime files (? will be replaced by filename):",
"Lua paths used to load C libraries (? will be replaced by filename):",
};
if (vis_lua_paths_get(vis, &paths[0], &paths[1])) {
for (size_t i = 0; i < LENGTH(paths); i++) {
text_appendf(txt, "\n %s\n\n", paths_description[i]);
for (char *elem = paths[i], *next; elem; elem = next) {
if ((next = strstr(elem, ";")))
*next++ = '\0';
if (*elem)
text_appendf(txt, " %s\n", elem);
}
free(paths[i]);
}
}
text_appendf(txt, "\n Compile time configuration\n\n");
const struct {
const char *name;
bool enabled;
} configs[] = {
{ "Curses support: ", CONFIG_CURSES },
{ "Lua support: ", CONFIG_LUA },
{ "Lua LPeg statically built-in: ", CONFIG_LPEG },
{ "TRE based regex support: ", CONFIG_TRE },
{ "POSIX ACL support: ", CONFIG_ACL },
{ "SELinux support: ", CONFIG_SELINUX },
};
for (size_t i = 0; i < LENGTH(configs); i++)
text_appendf(txt, " %-32s\t%s\n", configs[i].name, configs[i].enabled ? "yes" : "no");
text_save(txt, NULL);
view_cursor_to(vis->win->view, 0);
if (argv[1])
vis_motion(vis, VIS_MOVE_SEARCH_FORWARD, argv[1]);
return true;
}
static bool cmd_langmap(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
const char *nonlatin = argv[1];
const char *latin = argv[2];
bool mapped = true;
if (!latin || !nonlatin) {
vis_info_show(vis, "usage: langmap <non-latin keys> <latin keys>");
return false;
}
while (*latin && *nonlatin) {
size_t i = 0, j = 0;
char latin_key[8], nonlatin_key[8];
do {
if (i < sizeof(latin_key)-1)
latin_key[i++] = *latin;
latin++;
} while (!ISUTF8(*latin));
do {
if (j < sizeof(nonlatin_key)-1)
nonlatin_key[j++] = *nonlatin;
nonlatin++;
} while (!ISUTF8(*nonlatin));
latin_key[i] = '\0';
nonlatin_key[j] = '\0';
mapped &= vis_keymap_add(vis, nonlatin_key, strdup(latin_key));
}
return mapped;
}
static bool cmd_map(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
bool mapped = false;
bool local = strstr(argv[0], "-") != NULL;
enum VisMode mode = vis_mode_from(vis, argv[1]);
if (local && !win) {
vis_info_show(vis, "Invalid window for :%s", argv[0]);
return false;
}
if (mode == VIS_MODE_INVALID || !argv[2] || !argv[3]) {
vis_info_show(vis, "usage: %s mode lhs rhs", argv[0]);
return false;
}
const char *lhs = argv[2];
KeyBinding *binding = vis_binding_new(vis);
if (!binding || !(binding->alias = strdup(argv[3])))
goto err;
if (local)
mapped = vis_window_mode_map(win, mode, cmd->flags == '!', lhs, binding);
else
mapped = vis_mode_map(vis, mode, cmd->flags == '!', lhs, binding);
err:
if (!mapped) {
vis_info_show(vis, "Failed to map `%s' in %s mode%s", lhs, argv[1],
cmd->flags != '!' ? ", mapping already exists, "
"override with `!'" : "");
vis_binding_free(vis, binding);
}
return mapped;
}
static bool cmd_unmap(Vis *vis, Win *win, Command *cmd, const char *argv[], Selection *sel, Filerange *range) {
bool unmapped = false;
bool local = strstr(argv[0], "-") != NULL;
enum VisMode mode = vis_mode_from(vis, argv[1]);
const char *lhs = argv[2];
if (local && !win) {
vis_info_show(vis, "Invalid window for :%s", argv[0]);
return false;
}
if (mode == VIS_MODE_INVALID || !lhs) {
vis_info_show(vis, "usage: %s mode lhs", argv[0]);
return false;
}
if (local)
unmapped = vis_window_mode_unmap(win, mode, lhs);
else
unmapped = vis_mode_unmap(vis, mode, lhs);
if (!unmapped)
vis_info_show(vis, "Failed to unmap `%s' in %s mode", lhs, argv[1]);
return unmapped;
}
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