From 7902af9a003239f0d5203e7c9d068b578e005515 Mon Sep 17 00:00:00 2001
From: Tom Ryder <tom@sanctum.geek.nz>
Date: Sat, 17 Dec 2016 18:43:54 +1300
Subject: Add SHLVL handling for ksh

Turns out ksh93 at least does actually do it
---
 ksh/kshrc.d/prompt.ksh | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'ksh/kshrc.d/prompt.ksh')

diff --git a/ksh/kshrc.d/prompt.ksh b/ksh/kshrc.d/prompt.ksh
index f0aaadd3..8fbce020 100644
--- a/ksh/kshrc.d/prompt.ksh
+++ b/ksh/kshrc.d/prompt.ksh
@@ -35,6 +35,14 @@ prompt() {
             # Add terminating "$" or "#" sign
             PS1=$PS1'\$'
 
+            # Add > signs at the front of the prompt to show the current shell
+            # level, taking tmux sessions into account, assuming this version
+            # of ksh does SHLVL (I think only ksh93 does it
+            typeset shlvl
+            for ((shlvl = SHLVL - TMUX_SHLVL; shlvl > 1; shlvl--)) ; do
+                PS1='>'$PS1
+            done
+
             # Declare variables to contain terminal control strings
             typeset format reset
 
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