degesch: add a thin-cursor plugin

plugins/degesch/thin-cursor.lua

@@ -0,0 +1,27 @@
+--
+-- thin-cursor.lua: set a thin cursor
+--
+-- Copyright (c) 2016, Přemysl Janouch <p.janouch@gmail.com>
+--
+-- Permission to use, copy, modify, and/or 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 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.
+--
+
+-- If tmux doesn't work, add the following to the configuration and reload it:
+--   set -as terminal-overrides ',*:Ss=\E[%p1%d q:Se=\E[2 q'
+-- Change the "2" as per http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
+
+local out = io.output ()
+out:write ("\x1b[6 q"):flush ()
+x = setmetatable ({}, { __gc = function ()
+	out:write ("\x1b[2 q"):flush ()
+end })