tmux/cmd-show-options.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 <vis.h>
#include "tmux.h"
/*
* Show options.
*/
static enum cmd_retval cmd_show_options_exec(struct cmd *, struct cmdq_item *);
static void cmd_show_options_print(struct cmd *, struct cmdq_item *,
struct options_entry *, int);
static enum cmd_retval cmd_show_options_all(struct cmd *, struct cmdq_item *,
struct options *);
const struct cmd_entry cmd_show_options_entry = {
.name = "show-options",
.alias = "show",
.args = { "gHqst:vw", 0, 1 },
.usage = "[-gHqsvw] [-t target-session|target-window] [option]",
.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
.flags = CMD_AFTERHOOK,
.exec = cmd_show_options_exec
};
const struct cmd_entry cmd_show_window_options_entry = {
.name = "show-window-options",
.alias = "showw",
.args = { "gvt:", 0, 1 },
.usage = "[-gv] " CMD_TARGET_WINDOW_USAGE " [option]",
.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
.flags = CMD_AFTERHOOK,
.exec = cmd_show_options_exec
};
const struct cmd_entry cmd_show_hooks_entry = {
.name = "show-hooks",
.alias = NULL,
.args = { "gt:", 0, 1 },
.usage = "[-g] " CMD_TARGET_SESSION_USAGE,
.target = { 't', CMD_FIND_SESSION, 0 },
.flags = CMD_AFTERHOOK,
.exec = cmd_show_options_exec
};
static enum cmd_retval
cmd_show_options_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct cmd_find_state *fs = &item->target;
struct client *c = cmd_find_client(item, NULL, 1);
struct session *s = item->target.s;
struct winlink *wl = item->target.wl;
struct options *oo;
enum options_table_scope scope;
char *argument, *name = NULL, *cause;
const char *target;
int window, idx, ambiguous;
struct options_entry *o;
window = (self->entry == &cmd_show_window_options_entry);
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if (args->argc == 0) {
options_scope_from_flags(args, window, fs, &oo, &cause);
return (cmd_show_options_all(self, item, oo));
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}
argument = format_single(item, args->argv[0], c, s, wl, NULL);
name = options_match(argument, &idx, &ambiguous);
if (name == NULL) {
if (args_has(args, 'q'))
goto fail;
if (ambiguous)
cmdq_error(item, "ambiguous option: %s", argument);
else
cmdq_error(item, "invalid option: %s", argument);
goto fail;
}
if (*name == '@')
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_SERVER)
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");
goto fail;
} else
oo = s->options;
} else if (scope == OPTIONS_TABLE_WINDOW) {
if (args_has(self->args, 'g'))
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");
goto fail;
} else
oo = wl->window->options;
}
}
if (scope == OPTIONS_TABLE_NONE) {
if (args_has(args, 'q'))
goto fail;
cmdq_error(item, "%s", cause);
free(cause);
goto fail;
}
o = options_get_only(oo, name);
if (o != NULL)
cmd_show_options_print(self, item, o, idx);
free(name);
free(argument);
return (CMD_RETURN_NORMAL);
fail:
free(name);
free(argument);
return (CMD_RETURN_ERROR);
}
static void
cmd_show_options_print(struct cmd *self, struct cmdq_item *item,
struct options_entry *o, int idx)
{
struct options_array_item *a;
const char *name = options_name(o);
char *value, *tmp = NULL, *escaped;
if (idx != -1) {
xasprintf(&tmp, "%s[%d]", name, idx);
name = tmp;
} else {
if (options_isarray(o)) {
a = options_array_first(o);
if (a == NULL) {
if (!args_has(self->args, 'v'))
cmdq_print(item, "%s", name);
return;
}
while (a != NULL) {
idx = options_array_item_index(a);
cmd_show_options_print(self, item, o, idx);
a = options_array_next(a);
}
return;
}
}
value = options_tostring(o, idx, 0);
if (args_has(self->args, 'v'))
cmdq_print(item, "%s", value);
else if (options_isstring(o)) {
utf8_stravis(&escaped, value, VIS_OCTAL|VIS_TAB|VIS_NL|VIS_DQ);
cmdq_print(item, "%s \"%s\"", name, escaped);
free(escaped);
} else
cmdq_print(item, "%s %s", name, value);
free(value);
free(tmp);
}
static enum cmd_retval
cmd_show_options_all(struct cmd *self, struct cmdq_item *item,
struct options *oo)
{
struct options_entry *o;
struct options_array_item *a;
u_int idx;
const struct options_table_entry *oe;
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o = options_first(oo);
while (o != NULL) {
oe = options_table_entry(o);
if ((self->entry != &cmd_show_hooks_entry &&
!args_has(self->args, 'H') &&
oe != NULL &&
(oe->flags & OPTIONS_TABLE_IS_HOOK)) ||
(self->entry == &cmd_show_hooks_entry &&
(oe == NULL ||
(~oe->flags & OPTIONS_TABLE_IS_HOOK)))) {
o = options_next(o);
continue;
}
if (!options_isarray(o))
cmd_show_options_print(self, item, o, -1);
else if ((a = options_array_first(o)) == NULL) {
if (!args_has(self->args, 'v'))
cmdq_print(item, "%s", options_name(o));
} else {
while (a != NULL) {
idx = options_array_item_index(a);
cmd_show_options_print(self, item, o, idx);
a = options_array_next(a);
}
}
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o = options_next(o);
}
return (CMD_RETURN_NORMAL);
}