From 3df7c91f1afbf9059800d54c6efd3ae3f051001b Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Thu, 27 Jul 2017 10:42:05 +0000
Subject: [PATCH] Add pane_at_left/right/top/bottom formats, from Amos Bird.

---
 format.c | 4 ++++
 tmux.1   | 5 ++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/format.c b/format.c
index 115eba94..160052c4 100644
--- a/format.c
+++ b/format.c
@@ -1405,6 +1405,10 @@ format_defaults_pane(struct format_tree *ft, struct window_pane *wp)
 		format_add(ft, "pane_top", "%u", wp->yoff);
 		format_add(ft, "pane_right", "%u", wp->xoff + wp->sx - 1);
 		format_add(ft, "pane_bottom", "%u", wp->yoff + wp->sy - 1);
+		format_add(ft, "pane_at_left", "%d", wp->xoff == 0);
+		format_add(ft, "pane_at_top", "%d", wp->yoff == 0);
+		format_add(ft, "pane_at_right", "%d", wp->xoff + wp->sx == wp->window->sx);
+		format_add(ft, "pane_at_bottom", "%d", wp->yoff + wp->sy == wp->window->sy);
 	}
 
 	format_add(ft, "pane_in_mode", "%d", wp->screen != &wp->base);
diff --git a/tmux.1 b/tmux.1
index fc9f3ec7..2afdffd4 100644
--- a/tmux.1
+++ b/tmux.1
@@ -2774,7 +2774,6 @@ Set action on window silence when
 is on.
 The values are the same as those for
 .Ic activity-action .
-.Pp
 .It Xo Ic status
 .Op Ic on | off
 .Xc
@@ -3610,6 +3609,10 @@ The following variables are available, where appropriate:
 .It Li "mouse_standard_flag" Ta "" Ta "Pane mouse standard flag"
 .It Li "mouse_all_flag" Ta "" Ta "Pane mouse all flag"
 .It Li "pane_active" Ta "" Ta "1 if active pane"
+.It Li "pane_at_bottom" Ta "" Ta "1 if pane is at the bottom of window"
+.It Li "pane_at_left" Ta "" Ta "1 if pane is at the left of window"
+.It Li "pane_at_right" Ta "" Ta "1 if pane is at the right of window"
+.It Li "pane_at_top" Ta "" Ta "1 if pane is at the top of window"
 .It Li "pane_bottom" Ta "" Ta "Bottom of pane"
 .It Li "pane_current_command" Ta "" Ta "Current command if available"
 .It Li "pane_dead" Ta "" Ta "1 if pane is dead"