From d03858280aa00676dbb47a0912b3fbf0516172d0 Mon Sep 17 00:00:00 2001
From: Delapouite <delapouite@gmail.com>
Date: Thu, 5 Oct 2017 16:41:36 +0200
Subject: [PATCH] Add client_list var

---
 README.asciidoc                  | 3 ++-
 doc/manpages/expansions.asciidoc | 6 ++++--
 src/main.cc                      | 6 ++++++
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/README.asciidoc b/README.asciidoc
index 8f01a692..89e13312 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -813,8 +813,9 @@ Some of Kakoune state is available through environment variables:
  * `kak_opt_<name>`: value of option <name>
  * `kak_reg_<r>`: value of register <r>
  * `kak_session`: name of the current session
- * `kak_client`: name of current client
+ * `kak_client`: name of the current client
  * `kak_client_pid`: pid of the current client
+ * `kak_client_list`: list of clients connected to the current session
  * `kak_modified`: buffer has modifications not saved
  * `kak_source`: path of the file currently getting executed (through the source command)
  * `kak_cursor_line`: line of the end of the main selection
diff --git a/doc/manpages/expansions.asciidoc b/doc/manpages/expansions.asciidoc
index 9b48f64c..d213429f 100644
--- a/doc/manpages/expansions.asciidoc
+++ b/doc/manpages/expansions.asciidoc
@@ -88,9 +88,11 @@ informations about Kakoune's state:
 *kak_session*::
 	name of the current session
 *kak_client*::
-	name of current client
+	name of the current client
 *kak_client_pid*::
-	process id of current client
+	process id of the current client
+*kak_client_list*::
+	list of clients connected to the current session
 *kak_source*::
 	path of the file currently getting executed (through the source
 	command)
diff --git a/src/main.cc b/src/main.cc
index c69c72a3..2d7f8307 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -135,6 +135,12 @@ void register_env_vars()
             "client_pid", false,
             [](StringView name, const Context& context) -> String
             { return to_string(context.client().pid()); }
+        }, {
+            "client_list", false,
+            [](StringView name, const Context& context) -> String
+            { return join(ClientManager::instance() |
+                          transform([](const std::unique_ptr<Client>& c) -> const String&
+                                   { return c->context().name(); }), ':'); }
         }, {
             "modified", false,
             [](StringView name, const Context& context) -> String