tmux/cmd-set-option.c

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/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Set an option.
*/
static enum cmd_retval cmd_set_option_exec(struct cmd *, struct cmdq_item *);
static int cmd_set_option_set(struct cmd *, struct cmdq_item *,
struct options *, struct options_entry *, const char *);
static int cmd_set_option_flag(struct cmdq_item *,
const struct options_table_entry *, struct options *,
const char *);
static int cmd_set_option_choice(struct cmdq_item *,
const struct options_table_entry *, struct options *,
const char *);
const struct cmd_entry cmd_set_option_entry = {
.name = "set-option",
.alias = "set",
.args = { "aFgoqst:uw", 1, 2 },
.usage = "[-aFgosquw] [-t target-window] option [value]",
.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
.flags = CMD_AFTERHOOK,
.exec = cmd_set_option_exec
};
const struct cmd_entry cmd_set_window_option_entry = {
.name = "set-window-option",
.alias = "setw",
.args = { "aFgoqt:u", 1, 2 },
.usage = "[-aFgoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",
.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
.flags = CMD_AFTERHOOK,
.exec = cmd_set_option_exec
};
static enum cmd_retval
cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
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int append = args_has(args, 'a');
struct cmd_find_state *fs = &item->target;
struct client *c, *loop;
struct session *s = fs->s;
struct winlink *wl = fs->wl;
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struct window *w;
enum options_table_scope scope;
struct options *oo;
struct options_entry *parent, *o;
char *name, *argument, *value = NULL, *cause;
const char *target;
int window, idx, already, error, ambiguous;
/* Expand argument. */
c = cmd_find_client(item, NULL, 1);
argument = format_single(item, args->argv[0], c, s, wl, NULL);
/* Parse option name and index. */
name = options_match(argument, &idx, &ambiguous);
if (name == NULL) {
if (args_has(args, 'q'))
goto out;
if (ambiguous)
cmdq_error(item, "ambiguous option: %s", argument);
else
cmdq_error(item, "invalid option: %s", argument);
goto fail;
}
if (args->argc < 2)
value = NULL;
else if (args_has(args, 'F'))
value = format_single(item, args->argv[1], c, s, wl, NULL);
else
value = xstrdup(args->argv[1]);
/*
* Figure out the scope: for user options it comes from the arguments,
* otherwise from the option name.
*/
if (*name == '@') {
window = (self->entry == &cmd_set_window_option_entry);
scope = options_scope_from_flags(args, window, fs, &oo, &cause);
} else {
if (options_get_only(global_options, name) != NULL)
scope = OPTIONS_TABLE_SERVER;
else if (options_get_only(global_s_options, name) != NULL)
scope = OPTIONS_TABLE_SESSION;
else if (options_get_only(global_w_options, name) != NULL)
scope = OPTIONS_TABLE_WINDOW;
else {
scope = OPTIONS_TABLE_NONE;
xasprintf(&cause, "unknown option: %s", argument);
}
}
if (scope == OPTIONS_TABLE_NONE) {
if (args_has(args, 'q'))
goto out;
cmdq_error(item, "%s", cause);
free(cause);
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goto fail;
}
/* Which table should this option go into? */
if (scope == OPTIONS_TABLE_SERVER)
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oo = global_options;
else if (scope == OPTIONS_TABLE_SESSION) {
if (args_has(self->args, 'g'))
oo = global_s_options;
else if (s == NULL) {
target = args_get(args, 't');
if (target != NULL)
cmdq_error(item, "no such session: %s", target);
else
cmdq_error(item, "no current session");
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goto fail;
} else
oo = s->options;
} else if (scope == OPTIONS_TABLE_WINDOW) {
if (args_has(self->args, 'g'))
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oo = global_w_options;
else if (wl == NULL) {
target = args_get(args, 't');
if (target != NULL)
cmdq_error(item, "no such window: %s", target);
else
cmdq_error(item, "no current window");
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goto fail;
} else
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oo = wl->window->options;
}
o = options_get_only(oo, name);
parent = options_get(oo, name);
/* Check that array options and indexes match up. */
if (idx != -1) {
if (*name == '@' || options_array_size(parent, NULL) == -1) {
cmdq_error(item, "not an array: %s", argument);
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goto fail;
}
}
/* With -o, check this option is not already set. */
if (!args_has(args, 'u') && args_has(args, 'o')) {
if (idx == -1)
already = (o != NULL);
else {
if (o == NULL)
already = 0;
else
already = (options_array_get(o, idx) != NULL);
}
if (already) {
if (args_has(args, 'q'))
goto out;
cmdq_error(item, "already set: %s", argument);
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goto fail;
}
}
/* Change the option. */
if (args_has(args, 'u')) {
if (o == NULL)
goto out;
if (idx == -1) {
if (*name == '@')
options_remove(o);
else if (oo == global_options ||
oo == global_s_options ||
oo == global_w_options)
options_default(oo, options_table_entry(o));
else
options_remove(o);
} else
options_array_set(o, idx, NULL, 0);
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} else if (*name == '@') {
if (value == NULL) {
cmdq_error(item, "empty value");
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goto fail;
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}
options_set_string(oo, name, append, "%s", value);
} else if (idx == -1 && options_array_size(parent, NULL) == -1) {
error = cmd_set_option_set(self, item, oo, parent, value);
if (error != 0)
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goto fail;
} else {
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if (value == NULL) {
cmdq_error(item, "empty value");
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goto fail;
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}
if (o == NULL)
o = options_empty(oo, options_table_entry(parent));
if (idx == -1) {
if (!append)
options_array_clear(o);
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options_array_assign(o, value);
} else if (options_array_set(o, idx, value, append) != 0) {
cmdq_error(item, "invalid index: %s", argument);
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goto fail;
}
}
/* Update timers and so on for various options. */
if (strcmp(name, "automatic-rename") == 0) {
RB_FOREACH(w, windows, &windows) {
if (w->active == NULL)
continue;
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if (options_get_number(w->options, "automatic-rename"))
w->active->flags |= PANE_CHANGED;
}
}
if (strcmp(name, "key-table") == 0) {
TAILQ_FOREACH(loop, &clients, entry)
server_client_set_key_table(loop, NULL);
}
if (strcmp(name, "user-keys") == 0) {
TAILQ_FOREACH(loop, &clients, entry) {
if (loop->tty.flags & TTY_OPENED)
tty_keys_build(&loop->tty);
}
}
if (strcmp(name, "status") == 0 ||
strcmp(name, "status-interval") == 0)
status_timer_start_all();
if (strcmp(name, "monitor-silence") == 0)
alerts_reset_all();
if (strcmp(name, "window-style") == 0 ||
strcmp(name, "window-active-style") == 0) {
RB_FOREACH(w, windows, &windows)
w->flags |= WINDOW_STYLECHANGED;
}
if (strcmp(name, "pane-border-status") == 0) {
RB_FOREACH(w, windows, &windows)
layout_fix_panes(w, w->sx, w->sy);
}
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RB_FOREACH(s, sessions, &sessions)
status_update_saved(s);
/*
* Update sizes and redraw. May not always be necessary but do it
* anyway.
*/
recalculate_sizes();
TAILQ_FOREACH(loop, &clients, entry) {
if (loop->session != NULL)
server_redraw_client(loop);
}
out:
free(argument);
free(value);
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free(name);
return (CMD_RETURN_NORMAL);
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fail:
free(argument);
free(value);
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free(name);
return (CMD_RETURN_ERROR);
}
static int
cmd_set_option_set(struct cmd *self, struct cmdq_item *item, struct options *oo,
struct options_entry *parent, const char *value)
{
const struct options_table_entry *oe;
struct args *args = self->args;
int append = args_has(args, 'a');
struct options_entry *o;
long long number;
const char *errstr;
key_code key;
oe = options_table_entry(parent);
if (value == NULL &&
oe->type != OPTIONS_TABLE_FLAG &&
oe->type != OPTIONS_TABLE_CHOICE) {
cmdq_error(item, "empty value");
return (-1);
}
switch (oe->type) {
case OPTIONS_TABLE_STRING:
options_set_string(oo, oe->name, append, "%s", value);
return (0);
case OPTIONS_TABLE_NUMBER:
number = strtonum(value, oe->minimum, oe->maximum, &errstr);
if (errstr != NULL) {
cmdq_error(item, "value is %s: %s", errstr, value);
return (-1);
}
options_set_number(oo, oe->name, number);
return (0);
case OPTIONS_TABLE_KEY:
key = key_string_lookup_string(value);
if (key == KEYC_UNKNOWN) {
cmdq_error(item, "bad key: %s", value);
return (-1);
}
options_set_number(oo, oe->name, key);
return (0);
case OPTIONS_TABLE_COLOUR:
if ((number = colour_fromstring(value)) == -1) {
cmdq_error(item, "bad colour: %s", value);
return (-1);
}
o = options_set_number(oo, oe->name, number);
options_style_update_new(oo, o);
return (0);
case OPTIONS_TABLE_ATTRIBUTES:
if ((number = attributes_fromstring(value)) == -1) {
cmdq_error(item, "bad attributes: %s", value);
return (-1);
}
o = options_set_number(oo, oe->name, number);
options_style_update_new(oo, o);
return (0);
case OPTIONS_TABLE_FLAG:
return (cmd_set_option_flag(item, oe, oo, value));
case OPTIONS_TABLE_CHOICE:
return (cmd_set_option_choice(item, oe, oo, value));
case OPTIONS_TABLE_STYLE:
o = options_set_style(oo, oe->name, append, value);
if (o == NULL) {
cmdq_error(item, "bad style: %s", value);
return (-1);
}
options_style_update_old(oo, o);
return (0);
case OPTIONS_TABLE_ARRAY:
break;
}
return (-1);
}
static int
cmd_set_option_flag(struct cmdq_item *item,
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const struct options_table_entry *oe, struct options *oo,
const char *value)
{
int flag;
if (value == NULL || *value == '\0')
flag = !options_get_number(oo, oe->name);
else if (strcmp(value, "1") == 0 ||
strcasecmp(value, "on") == 0 ||
strcasecmp(value, "yes") == 0)
flag = 1;
else if (strcmp(value, "0") == 0 ||
strcasecmp(value, "off") == 0 ||
strcasecmp(value, "no") == 0)
flag = 0;
else {
cmdq_error(item, "bad value: %s", value);
return (-1);
}
options_set_number(oo, oe->name, flag);
return (0);
}
static int
cmd_set_option_choice(struct cmdq_item *item,
const struct options_table_entry *oe, struct options *oo,
const char *value)
{
const char **cp;
int n, choice = -1;
if (value == NULL) {
choice = options_get_number(oo, oe->name);
if (choice < 2)
choice = !choice;
} else {
n = 0;
for (cp = oe->choices; *cp != NULL; cp++) {
if (strcmp(*cp, value) == 0)
choice = n;
n++;
}
if (choice == -1) {
cmdq_error(item, "unknown value: %s", value);
return (-1);
}
}
options_set_number(oo, oe->name, choice);
return (0);
}