/* $OpenBSD$ */

/*

* 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 args_parse_type cmd_set_option_args_parse(struct args *,

u_int, char **);

static enum cmd_retval cmd_set_option_exec(struct cmd *,

struct cmdq_item *);

const struct cmd_entry cmd_set_option_entry = {

.name = "set-option",

.alias = "set",

.args = { "aFgopqst:uUw", 1, 2, cmd_set_option_args_parse },

.usage = "[-aFgopqsuUw] " CMD_TARGET_PANE_USAGE " option [value]",

.target = { 't', CMD_FIND_PANE, 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, cmd_set_option_args_parse },

.usage = "[-aFgoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",

.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },

.flags = CMD_AFTERHOOK,

.exec = cmd_set_option_exec

};

const struct cmd_entry cmd_set_hook_entry = {

.name = "set-hook",

.alias = NULL,

.args = { "agpRt:uw", 1, 2, cmd_set_option_args_parse },

.usage = "[-agpRuw] " CMD_TARGET_PANE_USAGE " hook [command]",

.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },

.flags = CMD_AFTERHOOK,

.exec = cmd_set_option_exec

};

static enum args_parse_type

cmd_set_option_args_parse(__unused struct args *args, u_int idx,

__unused char **cause)

{

if (idx == 1)

return (ARGS_PARSE_COMMANDS_OR_STRING);

return (ARGS_PARSE_STRING);

}

static enum cmd_retval

cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)

{

struct args *args = cmd_get_args(self);

int append = args_has(args, 'a');

struct cmd_find_state *target = cmdq_get_target(item);

struct window_pane *loop;

struct options *oo;

struct options_entry *parent, *o, *po;

char *name, *argument, *expanded = NULL;

char *cause;

const char *value;

int window, idx, already, error, ambiguous;

int scope;

window = (cmd_get_entry(self) == &cmd_set_window_option_entry);

/* Expand argument. */

argument = format_single_from_target(item, args_string(args, 0));

/* If set-hook -R, fire the hook straight away. */

if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'R')) {

notify_hook(item, argument);

free(argument);

return (CMD_RETURN_NORMAL);

}

/* 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_count(args) < 2)

value = NULL;

else

value = args_string(args, 1);

if (value != NULL && args_has(args, 'F')) {

expanded = format_single_from_target(item, value);

value = expanded;

}

/* Get the scope and table for the option .*/

scope = options_scope_from_name(args, window, name, target, &oo,

&cause);

if (scope == OPTIONS_TABLE_NONE) {

if (args_has(args, 'q'))

goto out;

cmdq_error(item, "%s", cause);

free(cause);

goto fail;

}

o = options_get_only(oo, name);

parent = options_get(oo, name);

/* Check that array options and indexes match up. */

if (idx != -1 && (*name == '@' || !options_is_array(parent))) {

cmdq_error(item, "not an array: %s", argument);

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);

goto fail;

}

}

/* Change the option. */

if (args_has(args, 'U') && scope == OPTIONS_TABLE_WINDOW) {

TAILQ_FOREACH(loop, &target->w->panes, entry) {

po = options_get_only(loop->options, name);

if (po == NULL)

continue;

if (options_remove_or_default(po, idx, &cause) != 0) {

cmdq_error(item, "%s", cause);

free(cause);

goto fail;

}

}

}

if (args_has(args, 'u') || args_has(args, 'U')) {

if (o == NULL)

goto out;

if (options_remove_or_default(o, idx, &cause) != 0) {

cmdq_error(item, "%s", cause);

free(cause);

goto fail;

}

} else if (*name == '@') {

if (value == NULL) {

cmdq_error(item, "empty value");

goto fail;

}

options_set_string(oo, name, append, "%s", value);

} else if (idx == -1 && !options_is_array(parent)) {

error = options_from_string(oo, options_table_entry(parent),

options_table_entry(parent)->name, value,

args_has(args, 'a'), &cause);

if (error != 0) {

cmdq_error(item, "%s", cause);

free(cause);

goto fail;

}

} else {

if (value == NULL) {

cmdq_error(item, "empty value");

goto fail;

}

if (o == NULL)

o = options_empty(oo, options_table_entry(parent));

if (idx == -1) {

if (!append)

options_array_clear(o);

if (options_array_assign(o, value, &cause) != 0) {

cmdq_error(item, "%s", cause);

free(cause);

goto fail;

}

} else if (options_array_set(o, idx, value, append,

&cause) != 0) {

cmdq_error(item, "%s", cause);

free(cause);

goto fail;

}

}

options_push_changes(name);

out:

free(argument);

free(expanded);

free(name);

return (CMD_RETURN_NORMAL);

fail:

free(argument);

free(expanded);

free(name);

return (CMD_RETURN_ERROR);

}