Per-session configuration options.

2025-11-03 16:46:18 +00:00 · 2008-06-03 21:42:37 +00:00
parent 85d520c41e
commit 9e6090a7a2
20 changed files with 343 additions and 102 deletions
--- a/5
+++ b/5
@@ -1,5 +1,8 @@
 03 June 2008

+* Per session options. Setting options without specifying a session sets the
+  global options as normal (global options are inherited by all sessions);
+  passing -c or -s will set the option only for that session.
 * Because a client has a session attached, any command needing a session can
  take a client and use its session. So, anything that used to accept -s now
  accepts -c as well.
@@ -379,4 +382,4 @@
  (including mutt, emacs). No status bar yet and no key remapping or other
  customisation.

-$Id: CHANGES,v 1.102 2008-06-03 16:55:09 nicm Exp $
+$Id: CHANGES,v 1.103 2008-06-03 21:42:36 nicm Exp $
--- a/4
+++ b/4
@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.56 2008-06-03 05:10:38 nicm Exp $
+# $Id: Makefile,v 1.57 2008-06-03 21:42:37 nicm Exp $

 .SUFFIXES: .c .o .y .h
 .PHONY: clean update-index.html upload-index.html
@@ -29,7 +29,7 @@ SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
      cmd-switch-client.c cmd-has-session.c cmd-scroll-mode.c cmd-copy-mode.c \
      cmd-paste-buffer.c cmd-new-session.c cmd-start-server.c \
      cmd-kill-server.c \
-      window-scroll.c window-more.c window-copy.c \
+      window-scroll.c window-more.c window-copy.c options.c \
      tty.c tty-keys.c tty-write.c screen-write.c screen-redraw.c

 CC?= cc
--- a/5
+++ b/5
@@ -65,6 +65,11 @@
 - different screen model? layers perhaps? hmm
 - cfg file improvements
 - select-window can become windowonly (what about default?)
+- monitor for activity in windows as well as bell
+- status bar customisation variables, date/time, show-activity, show-last-window
+		string-left, string-right - pass through strptime and print...
+- per-window options (per-session list of window ranges?)
+- show-options

 ---
 [18:20] *priteau* i found something in tmux that could be tweaked to be better
--- a/cmd-new-session.c
+++ b/cmd-new-session.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-new-session.c,v 1.23 2008-06-03 05:35:51 nicm Exp $ */
+/* $Id: cmd-new-session.c,v 1.24 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -113,7 +113,7 @@ cmd_new_session_exec(void *ptr, struct cmd_ctx *ctx)
 	struct client			*c = ctx->cmdclient;
 	struct session			*s;
 	char				*cmd, *cause;
-	u_int				 sx, sy;
+	u_int				 sx, sy, slines;

 	if (ctx->flags & CMD_KEY)
 		return;
@@ -136,7 +136,7 @@ cmd_new_session_exec(void *ptr, struct cmd_ctx *ctx)

 	cmd = data->cmd;
 	if (cmd == NULL)
-		cmd = default_command;
+		cmd = options_get_string(&global_options, "default-command");

 	sx = 80;
 	sy = 25;
@@ -144,9 +144,11 @@ cmd_new_session_exec(void *ptr, struct cmd_ctx *ctx)
 		sx = c->sx;
 		sy = c->sy;
 	}
-	if (sy < status_lines)
-		sy = status_lines + 1;
-	sy -= status_lines;
+
+	slines = options_get_number(&global_options, "status-lines");
+	if (sy < slines)
+		sy = slines + 1;
+	sy -= slines;

 	if (!data->flag_detached && tty_open(&c->tty, &cause) != 0) {
 		ctx->error(ctx, "%s", cause);
--- a/cmd-new-window.c
+++ b/cmd-new-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-new-window.c,v 1.19 2008-06-03 16:55:09 nicm Exp $ */
+/* $Id: cmd-new-window.c,v 1.20 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -138,13 +138,13 @@ cmd_new_window_exec(void *ptr, struct cmd_ctx *ctx)
 	struct winlink			*wl;
 	char				*cmd;

-	cmd = data->cmd;
-	if (cmd == NULL)
-		cmd = default_command;
-
 	if ((s = cmd_find_session(ctx, data->cname, data->sname)) == NULL)
 		return;

+	cmd = data->cmd;
+	if (cmd == NULL)
+		cmd = options_get_string(&s->options, "default-command");
+
 	if (data->idx < 0)
 		data->idx = -1;
 	wl = session_new(s, data->name, cmd, data->idx);
--- a/cmd-send-prefix.c
+++ b/cmd-send-prefix.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-send-prefix.c,v 1.11 2008-06-03 16:55:09 nicm Exp $ */
+/* $Id: cmd-send-prefix.c,v 1.12 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -41,12 +41,13 @@ const struct cmd_entry cmd_send_prefix_entry = {
 void
 cmd_send_prefix_exec(void *ptr, struct cmd_ctx *ctx)
 {
+	struct session	*s;
 	struct winlink	*wl;

-	if ((wl = cmd_windowonly_get(ptr, ctx, NULL)) == NULL)
+	if ((wl = cmd_windowonly_get(ptr, ctx, &s)) == NULL)
 		return;

-	window_key(wl->window, prefix_key);
+	window_key(wl->window, options_get_number(&s->options, "prefix-key"));

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
--- a/cmd-set-option.c
+++ b/cmd-set-option.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-set-option.c,v 1.18 2008-06-03 05:35:51 nicm Exp $ */
+/* $Id: cmd-set-option.c,v 1.19 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -35,13 +35,16 @@ void	cmd_set_option_recv(void **, struct buffer *);
 void	cmd_set_option_free(void *);

 struct cmd_set_option_data {
+	char	*cname;
+	char	*sname;
+	int	 flag_global;
 	char	*option;
 	char	*value;
 };

 const struct cmd_entry cmd_set_option_entry = {
 	"set-option", "set",
-	"option value",
+	"[-c client-tty|-s session-name] option value",
 	0,
 	cmd_set_option_parse,
 	cmd_set_option_exec,
@@ -59,11 +62,28 @@ cmd_set_option_parse(
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->cname = NULL;
+	data->sname = NULL;
+	data->flag_global = 1;
 	data->option = NULL;
 	data->value = NULL;

-	while ((opt = getopt(argc, argv, "")) != EOF) {
+	while ((opt = getopt(argc, argv, "c:s:")) != EOF) {
 		switch (opt) {
+		case 'c':
+			if (data->sname != NULL)
+				goto usage;
+			if (data->cname == NULL)
+				data->cname = xstrdup(optarg);
+			data->flag_global = 0;
+			break;
+		case 's':
+			if (data->cname != NULL)
+				goto usage;
+			if (data->sname == NULL)
+				data->sname = xstrdup(optarg);
+			data->flag_global = 0;
+			break;
 		default:
 			goto usage;
 		}
@@ -91,13 +111,22 @@ cmd_set_option_exec(void *ptr, unused struct cmd_ctx *ctx)
 {
 	struct cmd_set_option_data	*data = ptr;
 	struct client			*c;
+	struct session			*s;
+	struct options			*oo;
 	const char			*errstr;
 	u_int				 i;
 	int				 number, bool, key;
+	u_char				 colour;

 	if (data == NULL)
 		return;

+	if (data->flag_global ||
+	    ((s = cmd_find_session(ctx, data->cname, data->sname))) == NULL)
+		oo = &global_options;
+	else
+		oo = &s->options;
+
 	if (*data->option == '\0') {
 		ctx->error(ctx, "invalid option");
 		return;
@@ -127,13 +156,13 @@ cmd_set_option_exec(void *ptr, unused struct cmd_ctx *ctx)
 			ctx->error(ctx, "unknown key: %s", data->value);
 			return;
 		}
-		prefix_key = key;
+		options_set_number(oo, "prefix-key", key);
 	} else if (strcmp(data->option, "status") == 0) {
 		if (bool == -1) {
 			ctx->error(ctx, "bad value: %s", data->value);
 			return;
 		}
-		status_lines = bool;
+		options_set_number(oo, "status-lines", bool);
 		recalculate_sizes();
 	} else if (strcmp(data->option, "status-fg") == 0) {
 		if (data->value == NULL) {
@@ -145,9 +174,13 @@ cmd_set_option_exec(void *ptr, unused struct cmd_ctx *ctx)
 			ctx->error(ctx, "bad colour: %s", data->value);
 			return;
 		}
-		status_colour &= 0x0f;
-		status_colour |= number << 4;
-		if (status_lines > 0) {
+
+		colour = options_get_number(oo, "status-colour");
+		colour &= 0x0f;
+		colour |= number << 4;
+		options_set_number(oo, "status-colour", colour);
+
+		if (options_get_number(oo, "status-lines") > 0) {
 			for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 				c = ARRAY_ITEM(&clients, i);
 				if (c != NULL && c->session != NULL)
@@ -164,9 +197,13 @@ cmd_set_option_exec(void *ptr, unused struct cmd_ctx *ctx)
 			ctx->error(ctx, "bad colour: %s", data->value);
 			return;
 		}
-		status_colour &= 0xf0;
-		status_colour |= number;
-		if (status_lines > 0) {
+
+		colour = options_get_number(oo, "status-colour");
+		colour &= 0xf0;
+		colour |= number;
+		options_set_number(oo, "status-colour", colour);
+
+		if (options_get_number(oo, "status-lines") > 0) {
 			for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 				c = ARRAY_ITEM(&clients, i);
 				if (c != NULL && c->session != NULL)
@@ -179,22 +216,22 @@ cmd_set_option_exec(void *ptr, unused struct cmd_ctx *ctx)
 			return;
 		}
 		if (strcmp(data->value, "any") == 0)
-			bell_action = BELL_ANY;
+			number = BELL_ANY;
 		else if (strcmp(data->value, "none") == 0)
-			bell_action = BELL_NONE;
+			number = BELL_NONE;
 		else if (strcmp(data->value, "current") == 0)
-			bell_action = BELL_CURRENT;
+			number = BELL_CURRENT;
 		else {
 			ctx->error(ctx, "unknown bell-action: %s", data->value);
 			return;
 		}
+		options_set_number(oo, "bell-action", number);
 	} else if (strcmp(data->option, "default-command") == 0) {
 		if (data->value == NULL) {
 			ctx->error(ctx, "invalid value");
 			return;
 		}
-		xfree(default_command);
-		default_command = xstrdup(data->value);
+		options_set_string(oo, "default-command", "%s", data->value);
 	} else if (strcmp(data->option, "history-limit") == 0) {
 		if (data->value == NULL) {
 			ctx->error(ctx, "invalid value");
@@ -204,7 +241,7 @@ cmd_set_option_exec(void *ptr, unused struct cmd_ctx *ctx)
 			ctx->error(ctx, "history-limit too big: %u", number);
 			return;
 		}
-		history_limit = number;
+		options_set_number(oo, "history-limit", number);
 	} else {
 		ctx->error(ctx, "unknown option: %s", data->option);
 		return;
@@ -219,6 +256,9 @@ cmd_set_option_send(void *ptr, struct buffer *b)
 {
 	struct cmd_set_option_data	*data = ptr;

+	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->cname);
+	cmd_send_string(b, data->sname);
 	cmd_send_string(b, data->option);
 	cmd_send_string(b, data->value);
 }
@@ -229,6 +269,9 @@ cmd_set_option_recv(void **ptr, struct buffer *b)
 	struct cmd_set_option_data	*data;

 	*ptr = data = xmalloc(sizeof *data);
+	buffer_read(b, data, sizeof *data);
+	data->cname = cmd_recv_string(b);
+	data->sname = cmd_recv_string(b);
 	data->option = cmd_recv_string(b);
 	data->value = cmd_recv_string(b);
 }
@@ -238,6 +281,10 @@ cmd_set_option_free(void *ptr)
 {
 	struct cmd_set_option_data	*data = ptr;

+	if (data->cname != NULL)
+		xfree(data->cname);
+	if (data->sname != NULL)
+		xfree(data->sname);
 	if (data->option != NULL)
 		xfree(data->option);
 	if (data->value != NULL)
--- a/options.c
+++ b/options.c
@@ -0,0 +1,139 @@
+/* $Id: options.c,v 1.1 2008-06-03 21:42:37 nicm Exp $ */
+
+/*
+ * Copyright (c) 2008 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 <stdarg.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Option handling; each option has a name, type and value and is stored in
+ * a splay tree.
+ */
+
+SPLAY_GENERATE(options_tree, options_entry, entry, options_cmp);
+
+int
+options_cmp(struct options_entry *o1, struct options_entry *o2)
+{
+	return (strcmp(o1->name, o2->name));
+}
+
+void
+options_init(struct options *oo, struct options *parent)
+{
+	SPLAY_INIT(&oo->tree);
+	oo->parent = parent;
+}
+
+void
+options_free(struct options *oo)
+{
+	struct options_entry	*o;
+
+	while (!SPLAY_EMPTY(&oo->tree)) {
+		o = SPLAY_ROOT(&oo->tree);
+		SPLAY_REMOVE(options_tree, &oo->tree, o);
+		xfree(o->name);
+		if (o->type == OPTIONS_STRING)
+			xfree(o->value.string);
+		xfree(o);
+	}
+}
+
+void printflike3
+options_set_string(struct options *oo, const char *name, const char *fmt, ...)
+{
+	struct options_entry	*o, p;
+	va_list			 ap;
+
+	p.name = name;
+	o = SPLAY_FIND(options_tree, &oo->tree, &p);
+	if (o == NULL) {
+		o = xmalloc(sizeof *o);
+		o->name = xstrdup(name);
+		SPLAY_INSERT(options_tree, &oo->tree, o);
+	} else if (o->type == OPTIONS_STRING)
+		xfree(o->value.string);
+
+	va_start(ap, fmt);
+	o->type = OPTIONS_STRING;
+	xvasprintf(&o->value.string, fmt, ap);
+	va_end(ap);
+}
+
+char *
+options_get_string(struct options *oo, const char *name)
+{
+	struct options_entry	*o, p;
+
+	p.name = name;
+	o = SPLAY_FIND(options_tree, &oo->tree, &p);
+	while (o == NULL) {
+		oo = oo->parent;
+		o = SPLAY_FIND(options_tree, &oo->tree, &p);
+		if (o != NULL)
+			break;
+	}
+	if (o == NULL)
+		fatalx("missing option");
+	if (o->type != OPTIONS_STRING)
+		fatalx("option not a string");
+	return (o->value.string);
+}
+
+void
+options_set_number(struct options *oo, const char *name, long long value)
+{
+	struct options_entry	*o, p;
+
+	p.name = name;
+	o = SPLAY_FIND(options_tree, &oo->tree, &p);
+	if (o == NULL) {
+		o = xmalloc(sizeof *o);
+		o->name = xstrdup(name);
+		SPLAY_INSERT(options_tree, &oo->tree, o);
+	} else if (o->type == OPTIONS_STRING)
+		xfree(o->value.string);
+
+	o->type = OPTIONS_NUMBER;
+	o->value.number = value;
+
+}
+
+int
+options_get_number(struct options *oo, const char *name)
+{
+	struct options_entry	*o, p;
+
+	p.name = name;
+	o = SPLAY_FIND(options_tree, &oo->tree, &p);
+	while (o == NULL) {
+		oo = oo->parent;
+		o = SPLAY_FIND(options_tree, &oo->tree, &p);
+		if (o != NULL)
+			break;
+	}
+	if (o == NULL)
+		fatalx("missing option");
+	if (o->type != OPTIONS_NUMBER)
+		fatalx("option not a number");
+	return (o->value.number);
+}
--- a/resize.c
+++ b/resize.c
@@ -1,4 +1,4 @@
-/* $Id: resize.c,v 1.10 2008-06-01 20:32:41 nicm Exp $ */
+/* $Id: resize.c,v 1.11 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -48,7 +48,7 @@ recalculate_sizes(void)
 	struct session	*s;
 	struct client	*c;
 	struct window	*w;
-	u_int		 i, j, ssx, ssy;
+	u_int		 i, j, ssx, ssy, slines;

 	for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
 		s = ARRAY_ITEM(&sessions, i);
@@ -73,9 +73,10 @@ recalculate_sizes(void)
 		}
 		s->flags &= ~SESSION_UNATTACHED;

-		if (ssy < status_lines)
-			ssy = status_lines + 1;
-		ssy -= status_lines;
+		slines = options_get_number(&s->options, "status-lines");
+		if (ssy < slines)
+			ssy = slines + 1;
+		ssy -= slines;
 		if (s->sx == ssx && s->sy == ssy)
 			continue;

--- a/screen.c
+++ b/screen.c
@@ -1,4 +1,4 @@
-/* $Id: screen.c,v 1.59 2008-01-03 21:32:11 nicm Exp $ */
+/* $Id: screen.c,v 1.60 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -128,7 +128,7 @@ screen_stringcolour(const char *s)

 /* Create a new screen. */
 void
-screen_create(struct screen *s, u_int dx, u_int dy)
+screen_create(struct screen *s, u_int dx, u_int dy, u_int hlimit)
 {
 	s->dx = dx;
 	s->dy = dy;
@@ -139,7 +139,7 @@ screen_create(struct screen *s, u_int dx, u_int dy)
 	s->rlower = s->dy - 1;

 	s->hsize = 0;
-	s->hlimit = history_limit;
+	s->hlimit = hlimit;

 	s->attr = SCREEN_DEFATTR;
 	s->colr = SCREEN_DEFCOLR;
--- a/server-fn.c
+++ b/server-fn.c
@@ -1,4 +1,4 @@
-/* $Id: server-fn.c,v 1.37 2008-06-02 18:08:17 nicm Exp $ */
+/* $Id: server-fn.c,v 1.38 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -182,6 +182,9 @@ server_write_message(struct client *c, const char *fmt, ...)
 	va_list				ap;
 	char			       *msg;
 	size_t				size;
+	u_int				slines;
+
+	slines = options_get_number(&c->session->options, "status-lines");

 	screen_redraw_start_client(&ctx, c);
 	screen_redraw_move_cursor(&ctx, 0, c->sy - 1);
@@ -203,7 +206,7 @@ server_write_message(struct client *c, const char *fmt, ...)
 	buffer_flush(c->tty.fd, c->tty.in, c->tty.out);
 	usleep(750000);

-	if (status_lines == 0) {
+	if (slines == 0) {
 		screen_redraw_lines(&ctx, c->sy - 1, 1);
 		screen_redraw_stop(&ctx);
 	} else {
--- a/server.c
+++ b/server.c
@@ -1,4 +1,4 @@
-/* $Id: server.c,v 1.48 2008-06-02 21:16:21 nicm Exp $ */
+/* $Id: server.c,v 1.49 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -364,14 +364,15 @@ void
 server_handle_client(struct client *c)
 {
 	struct window	*w = c->session->curw->window;
-	int		 key;
+	int		 key, prefix;

+	prefix = options_get_number(&c->session->options, "prefix-key");
 	while (tty_keys_next(&c->tty, &key) == 0) {
 		if (c->flags & CLIENT_PREFIX) {
 			key_bindings_dispatch(key, c);
 			c->flags &= ~CLIENT_PREFIX;
 			continue;
-		} else if (key == prefix_key)
+		} else if (key == prefix)
 			c->flags |= CLIENT_PREFIX;
 		else
 			window_key(w, key);
@@ -413,22 +414,20 @@ server_handle_window(struct window *w)

 	for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
 		s = ARRAY_ITEM(&sessions, i);
-		if (s != NULL)
+		if (s == NULL || !session_has(s, w))
+			continue;
 		session_addbell(s, w);
-	}

-	switch (bell_action) {
+		switch (options_get_number(&s->options, "bell-action")) {
 		case BELL_ANY:
-		tty_write_window(w, TTY_CHARACTER, '\007');
+			tty_write_session(s, TTY_CHARACTER, '\007');
 			break;
 		case BELL_CURRENT:
-		for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
-			s = ARRAY_ITEM(&sessions, i);
-			if (s != NULL && s->curw->window == w)
+			if (s->curw->window == w)
 				tty_write_session(s, TTY_CHARACTER, '\007');
-		}
 			break;
 		}
+	}
 	server_status_window(w);

 	w->flags &= ~WINDOW_BELL;
--- a/session.c
+++ b/session.c
@@ -1,4 +1,4 @@
-/* $Id: session.c,v 1.32 2008-06-03 18:13:54 nicm Exp $ */
+/* $Id: session.c,v 1.33 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -95,6 +95,7 @@ session_create(const char *name, const char *cmd, u_int sx, u_int sy)
 	s->curw = s->lastw = NULL;
 	RB_INIT(&s->windows);
 	ARRAY_INIT(&s->bells);
+	options_init(&s->options, &global_options);
 	
 	s->sx = sx;
 	s->sy = sy;
@@ -137,6 +138,8 @@ session_destroy(struct session *s)
 	while (!ARRAY_EMPTY(&sessions) && ARRAY_LAST(&sessions) == NULL)
 		ARRAY_TRUNC(&sessions, 1);

+	options_free(&s->options);
+
 	while (!RB_EMPTY(&s->windows))
 		winlink_remove(&s->windows, RB_ROOT(&s->windows));

@@ -162,14 +165,15 @@ session_new(struct session *s, const char *name, const char *cmd, int idx)
 	struct window	*w;
 	const char	*env[] = { NULL, "TERM=screen", NULL };
 	char		 buf[256];
-	u_int		 i;
+	u_int		 i, hlimit;

 	if (session_index(s, &i) != 0)
 		fatalx("session not found");
 	xsnprintf(buf, sizeof buf, "TMUX=%ld,%u", (long) getpid(), i);
 	env[0] = buf;

-	if ((w = window_create(name, cmd, env, s->sx, s->sy)) == NULL)
+	hlimit = options_get_number(&s->options, "history-limit");
+	if ((w = window_create(name, cmd, env, s->sx, s->sy, hlimit)) == NULL)
 		return (NULL);
 	return (session_attach(s, w, idx));
 }
--- a/status.c
+++ b/status.c
@@ -1,4 +1,4 @@
-/* $Id: status.c,v 1.18 2008-01-03 21:32:11 nicm Exp $ */
+/* $Id: status.c,v 1.19 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,13 +30,17 @@ status_write_client(struct client *c)
 	struct screen_redraw_ctx	ctx;
 	struct winlink	       	       *wl;
 	char				flag;
+	u_char				scolour;
+	u_int				slines;

-	if (status_lines == 0 || c->sy <= status_lines)
+	scolour = options_get_number(&c->session->options, "status-colour");
+	slines = options_get_number(&c->session->options, "status-lines");
+	if (slines == 0 || c->sy <= slines)
 		return;

 	screen_redraw_start_client(&ctx, c);
-	screen_redraw_move_cursor(&ctx, 0, c->sy - status_lines);
-	screen_redraw_set_attributes(&ctx, 0, status_colour);
+	screen_redraw_move_cursor(&ctx, 0, c->sy - slines);
+	screen_redraw_set_attributes(&ctx, 0, scolour);

 	RB_FOREACH(wl, winlinks, &c->session->windows) {
 		flag = ' ';
--- a/tmux.c
+++ b/tmux.c
@@ -1,4 +1,4 @@
-/* $Id: tmux.c,v 1.50 2008-06-03 18:13:54 nicm Exp $ */
+/* $Id: tmux.c,v 1.51 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -42,15 +42,12 @@ const char	*_malloc_options = "AJX";

 volatile sig_atomic_t sigwinch;
 volatile sig_atomic_t sigterm;
+
 char		*cfg_file;
-char		*default_command;
+struct options	 global_options;
 char		*paste_buffer;
-int		 bell_action;
+
 int		 debug_level;
-int		 prefix_key = META;
-u_char		 status_colour;
-u_int		 history_limit;
-u_int		 status_lines;

 void		 sighandler(int);
 __dead void	 usage(void);
@@ -201,12 +198,12 @@ main(int argc, char **argv)
 	log_open(stderr, LOG_USER, debug_level);
 	siginit();

-	status_lines = 1;
-	status_colour = 0x02;
-
-	bell_action = BELL_ANY;
-
-	history_limit = 2000;
+	options_init(&global_options, NULL);
+	options_set_number(&global_options, "status-lines", 1);
+	options_set_number(&global_options, "status-colour", 0x02);
+	options_set_number(&global_options, "bell-action", BELL_ANY);
+	options_set_number(&global_options, "history-limit", 2000);
+	options_set_number(&global_options, "prefix-key", META);

 	paste_buffer = NULL;

@@ -260,7 +257,8 @@ main(int argc, char **argv)
 		if (shell == NULL || *shell == '\0')
 			shell = _PATH_BSHELL;
 	}
-	xasprintf(&default_command, "exec %s", shell);
+	options_set_string(
+	    &global_options, "default-command", "exec %s", shell);

 	if (argc == 0) {
 		cmd = xmalloc(sizeof *cmd);
@@ -334,7 +332,7 @@ main(int argc, char **argv)
 	}

 out:
-	xfree(default_command);
+	options_free(&global_options);

 	close(cctx.srv_fd);
 	buffer_destroy(cctx.srv_in);
--- a/tmux.h
+++ b/tmux.h
@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.124 2008-06-03 18:13:54 nicm Exp $ */
+/* $Id: tmux.h,v 1.125 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -533,6 +533,27 @@ struct winlink {
 };
 RB_HEAD(winlinks, winlink);

+/* Option data structures. */
+struct options_entry {
+	char		*name;
+
+	enum {
+		OPTIONS_STRING,
+		OPTIONS_NUMBER
+	} type;
+	union {
+		char	*string;
+		long long number;
+	} value;
+
+	SPLAY_ENTRY(options_entry) entry;
+};
+
+struct options {
+	SPLAY_HEAD(options_tree, options_entry) tree;
+	struct options	*parent;
+};
+
 /* Client session. */
 struct session {
 	char		*name;
@@ -545,6 +566,8 @@ struct session {
 	struct winlink	*lastw;
 	struct winlinks	 windows;

+	struct options	 options;
+
 	ARRAY_DECL(, struct winlink *) bells;	/* windows with bells */

 #define SESSION_UNATTACHED 0x1	/* not attached to any clients */
@@ -685,15 +708,13 @@ extern volatile sig_atomic_t sigterm;
 #define BELL_NONE 0
 #define BELL_ANY 1
 #define BELL_CURRENT 2
+extern struct options global_options;
 extern char	*default_command;
 extern char	*cfg_file;
 extern char	*paste_buffer;
 extern int	 bell_action;
 extern int	 debug_level;
-extern int	 prefix_key;
-extern u_char	 status_colour;
 extern u_int	 history_limit;
-extern u_int	 status_lines;
 void		 logfile(const char *);
 void		 siginit(void);
 void		 sigreset(void);
@@ -701,6 +722,17 @@ void		 sigreset(void);
 /* cfg.c */
 int		 load_cfg(const char *, char **x);

+/* options.c */
+int	options_cmp(struct options_entry *, struct options_entry *);
+SPLAY_PROTOTYPE(options_tree, options_entry, entry, options_cmp);
+void	options_init(struct options *, struct options *);
+void	options_free(struct options *);
+void printflike3 options_set_string(
+    	    struct options *, const char *, const char *, ...);
+char   *options_get_string(struct options *, const char *);
+void	options_set_number(struct options *, const char *, long long);
+int	options_get_number(struct options *, const char *);
+
 /* tty.c */
 void		 tty_init(struct tty *, char *, char *);
 int		 tty_open(struct tty *, char **);
@@ -937,7 +969,7 @@ void	screen_redraw_lines(struct screen_redraw_ctx *, u_int, u_int);
 /* screen.c */
 const char *screen_colourstring(u_char);
 u_char	 screen_stringcolour(const char *);
-void	 screen_create(struct screen *, u_int, u_int);
+void	 screen_create(struct screen *, u_int, u_int, u_int);
 void	 screen_destroy(struct screen *);
 void	 screen_resize(struct screen *, u_int, u_int);
 void	 screen_expand_line(struct screen *, u_int, u_int);
@@ -967,8 +999,8 @@ struct winlink	*winlink_add(struct winlinks *, struct window *, int);
 void		 winlink_remove(struct winlinks *, struct winlink *);
 struct winlink	*winlink_next(struct winlinks *, struct winlink *);
 struct winlink	*winlink_previous(struct winlinks *, struct winlink *);
-struct window	*window_create(
-    		     const char *, const char *, const char **, u_int, u_int);
+struct window	*window_create(const char *,
+		     const char *, const char **, u_int, u_int, u_int);
 void		 window_destroy(struct window *);
 int		 window_resize(struct window *, u_int, u_int);
 int		 window_set_mode(struct window *, const struct window_mode *);
--- a/window-copy.c
+++ b/window-copy.c
@@ -1,4 +1,4 @@
-/* $Id: window-copy.c,v 1.15 2007-12-07 09:49:18 nicm Exp $ */
+/* $Id: window-copy.c,v 1.16 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -91,7 +91,7 @@ window_copy_init(struct window *w)
 	data->cy = w->base.cy;

 	s = &data->screen;
-	screen_create(s, screen_size_x(&w->base), screen_size_y(&w->base));
+	screen_create(s, screen_size_x(&w->base), screen_size_y(&w->base), 0);
 	s->cx = data->cx;
 	s->cy = data->cy;

@@ -202,7 +202,8 @@ window_copy_write_line(
 	size_t	 			 size;

 	if (py == 0) {
-		screen_write_set_attributes(ctx, 0, status_colour);
+		screen_write_set_attributes(
+		    ctx, ATTR_BRIGHT|ATTR_REVERSE, 0x70);
 		screen_write_move_cursor(ctx, 0, 0);
 		size = screen_write_put_string_rjust(
 		    ctx, "[%u,%u/%u]", data->ox, data->oy, w->base.hsize);
--- a/window-more.c
+++ b/window-more.c
@@ -1,4 +1,4 @@
-/* $Id: window-more.c,v 1.10 2008-01-03 21:32:11 nicm Exp $ */
+/* $Id: window-more.c,v 1.11 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -92,7 +92,7 @@ window_more_init(struct window *w)
 	data->top = 0;

 	s = &data->screen;
-	screen_create(s, screen_size_x(&w->base), screen_size_y(&w->base));
+	screen_create(s, screen_size_x(&w->base), screen_size_y(&w->base), 0);
 	s->mode &= ~MODE_CURSOR;
 	
 	return (s);
@@ -171,7 +171,8 @@ window_more_write_line(struct window *w, struct screen_write_ctx *ctx, u_int py)
 	size_t	 			 size;

 	if (py == 0) {
-		screen_write_set_attributes(ctx, 0, status_colour);
+		screen_write_set_attributes(
+		    ctx, ATTR_BRIGHT|ATTR_REVERSE, 0x70);
 		screen_write_move_cursor(ctx, 0, 0);
 		size = screen_write_put_string_rjust(
 		    ctx, "[%u/%u]", data->top, ARRAY_LENGTH(&data->list));
--- a/window-scroll.c
+++ b/window-scroll.c
@@ -1,4 +1,4 @@
-/* $Id: window-scroll.c,v 1.17 2008-01-03 21:32:11 nicm Exp $ */
+/* $Id: window-scroll.c,v 1.18 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -65,7 +65,7 @@ window_scroll_init(struct window *w)
 	data->oy = 0;

 	s = &data->screen;
-	screen_create(s, screen_size_x(&w->base), screen_size_y(&w->base));
+	screen_create(s, screen_size_x(&w->base), screen_size_y(&w->base), 0);
 	s->mode &= ~MODE_CURSOR;

 	screen_write_start(&ctx, s, NULL, NULL);
@@ -153,7 +153,8 @@ window_scroll_write_line(
 	size_t	 			 size;

 	if (py == 0) {
-		screen_write_set_attributes(ctx, 0, status_colour);
+		screen_write_set_attributes(
+		    ctx, ATTR_BRIGHT|ATTR_REVERSE, 0x70);
 		screen_write_move_cursor(ctx, 0, 0);
 		size = screen_write_put_string_rjust(
 		    ctx, "[%u,%u/%u]", data->ox, data->oy, w->base.hsize);
--- a/window.c
+++ b/window.c
@@ -1,4 +1,4 @@
-/* $Id: window.c,v 1.37 2008-06-03 18:38:51 nicm Exp $ */
+/* $Id: window.c,v 1.38 2008-06-03 21:42:37 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -145,8 +145,8 @@ winlink_previous(unused struct winlinks *wwl, struct winlink *wl)
 }

 struct window *
-window_create(
-    const char *name, const char *cmd, const char **env, u_int sx, u_int sy)
+window_create(const char *name, 
+    const char *cmd, const char **env, u_int sx, u_int sy, u_int hlimit)
 {
 	struct window	*w;
 	struct winsize	 ws;
@@ -186,7 +186,7 @@ window_create(
 	w->in = buffer_create(BUFSIZ);
 	w->out = buffer_create(BUFSIZ);
 	w->mode = NULL;
-	screen_create(&w->base, sx, sy);
+	screen_create(&w->base, sx, sy, hlimit);
 	w->screen = &w->base;
 	input_init(w);