Return to cmd-set-option.c CVS log

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Drop the ability to have a list of keys in the prefix in favour of two
separate options, prefix and prefix2. This simplifies the code and gets
rid the data options type which was only used for this one option.

Also add a -2 flag to send-prefix to send the secondary prefix key,
fixing a cause of minor irritation.

People who want three prefix keys are out of luck :-).

/* $OpenBSD: cmd-set-option.c,v 1.52 2012/01/21 08:40:09 nicm Exp $ */

/*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
 *
 * 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.
 */

int	cmd_set_option_exec(struct cmd *, struct cmd_ctx *);

int	cmd_set_option_find(const char *, const struct options_table_entry **,
	    const struct options_table_entry **);

int	cmd_set_option_unset(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);
int	cmd_set_option_set(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);

struct options_entry *cmd_set_option_string(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);
struct options_entry *cmd_set_option_number(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);
struct options_entry *cmd_set_option_key(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);
struct options_entry *cmd_set_option_colour(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);
struct options_entry *cmd_set_option_attributes(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);
struct options_entry *cmd_set_option_flag(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);
struct options_entry *cmd_set_option_choice(struct cmd *, struct cmd_ctx *,
	    const struct options_table_entry *, struct options *,
	    const char *);

const struct cmd_entry cmd_set_option_entry = {
	"set-option", "set",
	"agst:uw", 1, 2,
	"[-agsuw] [-t target-session|target-window] option [value]",
	0,
	NULL,
	NULL,
	cmd_set_option_exec
};

const struct cmd_entry cmd_set_window_option_entry = {
	"set-window-option", "setw",
	"agt:u", 1, 2,
	"[-agu] " CMD_TARGET_WINDOW_USAGE " option [value]",
	0,
	NULL,
	NULL,
	cmd_set_option_exec
};

/* Look for an option in all three tables. */
int
cmd_set_option_find(
    const char *optstr, const struct options_table_entry **table,
    const struct options_table_entry **oe)
{
	static const struct options_table_entry	*tables[] = {
		server_options_table,
		window_options_table,
		session_options_table
	};
	const struct options_table_entry	*oe_loop;
	u_int					 i;

	for (i = 0; i < nitems(tables); i++) {
		for (oe_loop = tables[i]; oe_loop->name != NULL; oe_loop++) {
			if (strncmp(oe_loop->name, optstr, strlen(optstr)) != 0)
				continue;

			/* If already found, ambiguous. */
			if (*oe != NULL)
				return (-1);
			*oe = oe_loop;
			*table = tables[i];

			/* Bail now if an exact match. */
			if (strcmp((*oe)->name, optstr) == 0)
				break;
		}
	}
	return (0);
}

int
cmd_set_option_exec(struct cmd *self, struct cmd_ctx *ctx)
{
	struct args				*args = self->args;
	const struct options_table_entry	*table, *oe;
	struct session				*s;
	struct winlink				*wl;
	struct client				*c;
	struct options				*oo;
	const char				*optstr, *valstr;
	u_int					 i;

	/* Get the option name and value. */
	optstr = args->argv[0];
	if (*optstr == '\0') {
		ctx->error(ctx, "invalid option");
		return (-1);
	}
	if (args->argc < 2)
		valstr = NULL;
	else
		valstr = args->argv[1];

	/* Find the option entry, try each table. */
	table = oe = NULL;
	if (cmd_set_option_find(optstr, &table, &oe) != 0) {
		ctx->error(ctx, "ambiguous option: %s", optstr);
		return (-1);
	}
	if (oe == NULL) {
		ctx->error(ctx, "unknown option: %s", optstr);
		return (-1);
	}

	/* Work out the tree from the table. */
	if (table == server_options_table)
		oo = &global_options;
	else if (table == window_options_table) {
		if (args_has(self->args, 'g'))
			oo = &global_w_options;
		else {
			wl = cmd_find_window(ctx, args_get(args, 't'), NULL);
			if (wl == NULL)
				return (-1);
			oo = &wl->window->options;
		}
	} else if (table == session_options_table) {
		if (args_has(self->args, 'g'))
			oo = &global_s_options;
		else {
			s = cmd_find_session(ctx, args_get(args, 't'), 0);
			if (s == NULL)
				return (-1);
			oo = &s->options;
		}
	} else {
		ctx->error(ctx, "unknown table");
		return (-1);
	}

	/* Unset or set the option. */
	if (args_has(args, 'u')) {
		if (cmd_set_option_unset(self, ctx, oe, oo, valstr) != 0)
			return (-1);
	} else {
		if (cmd_set_option_set(self, ctx, oe, oo, valstr) != 0)
			return (-1);
	}

	/* Update sizes and redraw. May not need it but meh. */
	recalculate_sizes();
	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
		c = ARRAY_ITEM(&clients, i);
		if (c != NULL && c->session != NULL)
			server_redraw_client(c);
	}

	return (0);
}

/* Unset an option. */
int
cmd_set_option_unset(struct cmd *self, struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	struct args	*args = self->args;

	if (args_has(args, 'g')) {
		ctx->error(ctx, "can't unset global option: %s", oe->name);
		return (-1);
	}
	if (value != NULL) {
		ctx->error(ctx, "value passed to unset option: %s", oe->name);
		return (-1);
	}

	options_remove(oo, oe->name);
	ctx->info(ctx, "unset option: %s", oe->name);
	return (0);
}

/* Set an option. */
int
cmd_set_option_set(struct cmd *self, struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	struct options_entry	*o;
	const char		*s;

	if (oe->type != OPTIONS_TABLE_FLAG && value == NULL) {
		ctx->error(ctx, "empty value");
		return (-1);
	}

	o = NULL;
	switch (oe->type) {
	case OPTIONS_TABLE_STRING:
		o = cmd_set_option_string(self, ctx, oe, oo, value);
		break;
	case OPTIONS_TABLE_NUMBER:
		o = cmd_set_option_number(self, ctx, oe, oo, value);
		break;
	case OPTIONS_TABLE_KEY:
		o = cmd_set_option_key(self, ctx, oe, oo, value);
		break;
	case OPTIONS_TABLE_COLOUR:
		o = cmd_set_option_colour(self, ctx, oe, oo, value);
		break;
	case OPTIONS_TABLE_ATTRIBUTES:
		o = cmd_set_option_attributes(self, ctx, oe, oo, value);
		break;
	case OPTIONS_TABLE_FLAG:
		o = cmd_set_option_flag(self, ctx, oe, oo, value);
		break;
	case OPTIONS_TABLE_CHOICE:
		o = cmd_set_option_choice(self, ctx, oe, oo, value);
		break;
	}
	if (o == NULL)
		return (-1);

	s = options_table_print_entry(oe, o);
	ctx->info(ctx, "set option: %s -> %s", oe->name, s);
	return (0);
}

/* Set a string option. */
struct options_entry *
cmd_set_option_string(struct cmd *self, unused struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	struct args	*args = self->args;
	struct options_entry	*o;
	char			*oldval, *newval;

	if (args_has(args, 'a')) {
		oldval = options_get_string(oo, oe->name);
		xasprintf(&newval, "%s%s", oldval, value);
	} else
		newval = xstrdup(value);

	o = options_set_string(oo, oe->name, "%s", newval);

	xfree(newval);
	return (o);
}

/* Set a number option. */
struct options_entry *
cmd_set_option_number(unused struct cmd *self, struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	long long	 ll;
	const char     	*errstr;

	ll = strtonum(value, oe->minimum, oe->maximum, &errstr);
	if (errstr != NULL) {
		ctx->error(ctx, "value is %s: %s", errstr, value);
		return (NULL);
	}

	return (options_set_number(oo, oe->name, ll));
}

/* Set a key option. */
struct options_entry *
cmd_set_option_key(unused struct cmd *self, struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	int	key;

	if ((key = key_string_lookup_string(value)) == KEYC_NONE) {
		ctx->error(ctx, "bad key: %s", value);
		return (NULL);
	}

	return (options_set_number(oo, oe->name, key));
}

/* Set a colour option. */
struct options_entry *
cmd_set_option_colour(unused struct cmd *self, struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	int	colour;

	if ((colour = colour_fromstring(value)) == -1) {
		ctx->error(ctx, "bad colour: %s", value);
		return (NULL);
	}

	return (options_set_number(oo, oe->name, colour));
}

/* Set an attributes option. */
struct options_entry *
cmd_set_option_attributes(unused struct cmd *self, struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	int	attr;

	if ((attr = attributes_fromstring(value)) == -1) {
		ctx->error(ctx, "bad attributes: %s", value);
		return (NULL);
	}

	return (options_set_number(oo, oe->name, attr));
}

/* Set a flag option. */
struct options_entry *
cmd_set_option_flag(unused struct cmd *self, struct cmd_ctx *ctx,
    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 ((value[0] == '1' && value[1] == '\0') ||
		    strcasecmp(value, "on") == 0 ||
		    strcasecmp(value, "yes") == 0)
			flag = 1;
		else if ((value[0] == '0' && value[1] == '\0') ||
		    strcasecmp(value, "off") == 0 ||
		    strcasecmp(value, "no") == 0)
			flag = 0;
		else {
			ctx->error(ctx, "bad value: %s", value);
			return (NULL);
		}
	}

	return (options_set_number(oo, oe->name, flag));
}

/* Set a choice option. */
struct options_entry *
cmd_set_option_choice(unused struct cmd *self, struct cmd_ctx *ctx,
    const struct options_table_entry *oe, struct options *oo, const char *value)
{
	const char	**choicep;
	int		  n, choice = -1;

	n = 0;
	for (choicep = oe->choices; *choicep != NULL; choicep++) {
		n++;
		if (strncmp(*choicep, value, strlen(value)) != 0)
			continue;

		if (choice != -1) {
			ctx->error(ctx, "ambiguous value: %s", value);
			return (NULL);
		}
		choice = n - 1;
	}
	if (choice == -1) {
		ctx->error(ctx, "unknown value: %s", value);
		return (NULL);
	}

	return (options_set_number(oo, oe->name, choice));
}