Merge branch 'obsd-master'

6 files changed, 75 insertions, 13 deletions

diff --git a/cmd-new-session.c b/cmd-new-session.c
index b4bb37d5..ecbc5983 100644
--- a/cmd-new-session.c
+++ b/cmd-new-session.c
@@ -74,7 +74,7 @@ cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
 	struct environ		*env;
 	struct termios		 tio, *tiop;
 	const char		*newname, *target, *update, *errstr, *template;
-	const char		*path, *cwd, *to_free;
+	const char		*path, *cwd, *to_free = NULL;
 	char		       **argv, *cmd, *cause, *cp;
 	int			 detached, already_attached, idx, argc;
 	u_int			 sx, sy;
@@ -118,7 +118,12 @@ cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
 		}
 	}
 
-	if ((target = args_get(args, 't')) == NULL)
+	if ((target = args_get(args, 't')) != NULL) {
+		if (groupwith == NULL) {
+			cmdq_error(cmdq, "no such session: %s", target);
+			goto error;
+		}
+	} else
 		groupwith = NULL;
 
 	/* Set -d if no client. */
@@ -132,7 +137,6 @@ cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
 		already_attached = 1;
 
 	/* Get the new session working directory. */
-	to_free = NULL;
 	if (args_has(args, 'c')) {
 		ft = format_create(cmdq, 0);
 		format_defaults(ft, c, NULL, NULL, NULL);
@@ -208,7 +212,7 @@ cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
 	if (!args_has(args, 't') && args->argc != 0) {
 		argc = args->argc;
 		argv = args->argv;
-	} else if (target == NULL) {
+	} else if (groupwith == NULL) {
 		cmd = options_get_string(global_s_options, "default-command");
 		if (cmd != NULL && *cmd != '\0') {
 			argc = 1;
@@ -257,7 +261,7 @@ cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
 	 * If a target session is given, this is to be part of a session group,
 	 * so add it to the group and synchronize.
 	 */
-	if (args_has(args, 't')) {
+	if (groupwith != NULL) {
 		session_group_add(groupwith, s);
 		session_group_synchronize_to(s);
 		session_select(s, RB_MIN(winlinks, &s->windows)->idx);
diff --git a/format.c b/format.c
index f7282a61..d263cb0c 100644
--- a/format.c
+++ b/format.c
@@ -701,7 +701,7 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
 	char		*copy, *copy0, *endptr, *ptr, *found, *new, *value;
 	char		*from = NULL, *to = NULL;
 	size_t		 valuelen, newlen, fromlen, tolen, used;
-	u_long		 limit = 0;
+	long		 limit = 0;
 	int		 modifiers = 0, brackets;
 
 	/* Make a copy of the key. */
@@ -713,8 +713,8 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
 	switch (copy[0]) {
 	case '=':
 		errno = 0;
-		limit = strtoul(copy + 1, &endptr, 10);
-		if (errno == ERANGE && limit == ULONG_MAX)
+		limit = strtol(copy + 1, &endptr, 10);
+		if (errno == ERANGE && (limit == LONG_MIN || limit == LONG_MAX))
 			break;
 		if (*endptr != ':')
 			break;
@@ -830,10 +830,14 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
 	}
 
 	/* Truncate the value if needed. */
-	if (limit != 0) {
+	if (limit > 0) {
 		new = utf8_trimcstr(value, limit);
 		free(value);
 		value = new;
+	} else if (limit < 0) {
+		new = utf8_rtrimcstr(value, -limit);
+		free(value);
+		value = new;
 	}
 
 	/* Expand the buffer and copy in the value. */
diff --git a/grid.c b/grid.c
index 782032f4..0be0254f 100644
--- a/grid.c
+++ b/grid.c
@@ -452,6 +452,12 @@ grid_string_cells_fg(const struct grid_cell *gc, int *values)
 		values[n++] = 38;
 		values[n++] = 5;
 		values[n++] = gc->fg;
+	} else if (gc->flags & GRID_FLAG_FGRGB) {
+		values[n++] = 38;
+		values[n++] = 2;
+		values[n++] = gc->fg_rgb.r;
+		values[n++] = gc->fg_rgb.g;
+		values[n++] = gc->fg_rgb.b;
 	} else {
 		switch (gc->fg) {
 		case 0:
@@ -493,6 +499,12 @@ grid_string_cells_bg(const struct grid_cell *gc, int *values)
 		values[n++] = 48;
 		values[n++] = 5;
 		values[n++] = gc->bg;
+	} else if (gc->flags & GRID_FLAG_BGRGB) {
+		values[n++] = 48;
+		values[n++] = 2;
+		values[n++] = gc->bg_rgb.r;
+		values[n++] = gc->bg_rgb.g;
+		values[n++] = gc->bg_rgb.b;
 	} else {
 		switch (gc->bg) {
 		case 0:
@@ -532,7 +544,7 @@ void
 grid_string_cells_code(const struct grid_cell *lastgc,
     const struct grid_cell *gc, char *buf, size_t len, int escape_c0)
 {
-	int	oldc[16], newc[16], s[32];
+	int	oldc[64], newc[64], s[128];
 	size_t	noldc, nnewc, n, i;
 	u_int	attr = gc->attr;
 	u_int	lastattr = lastgc->attr;
diff --git a/tmux.1 b/tmux.1
index fcf388af..ceb351ee 100644
--- a/tmux.1
+++ b/tmux.1
@@ -3381,9 +3381,13 @@ if not.
 A limit may be placed on the length of the resultant string by prefixing it
 by an
 .Ql = ,
-a number and a colon, so
-.Ql #{=10:pane_title}
-will include at most the first 10 characters of the pane title.
+a number and a colon.
+Positive numbers count from the start of the string and negative from the end,
+so
+.Ql #{=5:pane_title}
+will include at most the first 5 characters of the pane title, or
+.Ql #{=-5:pane_title}
+the last 5 characters.
 Prefixing a time variable with
 .Ql t:
 will convert it to a string, so if
diff --git a/tmux.h b/tmux.h
index 4bdc8afc..be00098d 100644
--- a/tmux.h
+++ b/tmux.h
@@ -2326,6 +2326,7 @@ char		*utf8_sanitize(const char *);
 struct utf8_data *utf8_fromcstr(const char *);
 char		*utf8_tocstr(struct utf8_data *);
 u_int		 utf8_cstrwidth(const char *);
+char		*utf8_rtrimcstr(const char *, u_int);
 char		*utf8_trimcstr(const char *, u_int);
 char		*utf8_padcstr(const char *, u_int);
 
diff --git a/utf8.c b/utf8.c
index 5e32de2d..524ba872 100644
--- a/utf8.c
+++ b/utf8.c
@@ -723,6 +723,43 @@ utf8_trimcstr(const char *s, u_int width)
 	return (out);
 }
 
+/* Trim UTF-8 string to width. Caller frees. */
+char *
+utf8_rtrimcstr(const char *s, u_int width)
+{
+	struct utf8_data	*tmp, *next, *end;
+	char			*out;
+	u_int			 at;
+
+	tmp = utf8_fromcstr(s);
+
+	for (end = tmp; end->size != 0; end++)
+		/* nothing */;
+	if (end == tmp) {
+		free(tmp);
+		return (xstrdup(""));
+	}
+	next = end - 1;
+
+	at = 0;
+	for (;;)
+	{
+		if (at + next->width > width) {
+			next++;
+			break;
+		}
+		at += next->width;
+
+		if (next == tmp)
+			break;
+		next--;
+	}
+
+	out = utf8_tocstr(next);
+	free(tmp);
+	return (out);
+}
+
 /* Pad UTF-8 string to width. Caller frees. */
 char *
 utf8_padcstr(const char *s, u_int width)