make arrow keys, home/end/pgup/pgdown, and function keys work when inside tmux

gpakosz · gpakosz · commit acfb92385e67 · 2013-10-09T21:56:16.000+02:00
diff --git a/.vimrc b/.vimrc
@@ -93,7 +93,7 @@ set lazyredraw  " do not redraw when executing macros
 set report=0    " always report changes
 set cursorline  " highlight current line
 
-if strlen($TMUX)
+if exists('$TMUX')
   set ttyfast
 endif
 
@@ -456,6 +456,34 @@ noremap gI `.
 nnoremap ' `
 nnoremap ` '
 
+" make arrow keys, home/end/pgup/pgdown, and function keys work when inside tmux
+if exists('$TMUX') && (system("tmux show-options -wg xterm-keys | cut -d' ' -f2") =~ '^on')
+  " tmux will send xterm-style keys when its xterm-keys option is on
+  " add 'setw -g xterm-keys on' to your ~/.tmux.conf
+  execute "set <xUp>=\e[1;*A"
+  execute "set <xDown>=\e[1;*B"
+  execute "set <xRight>=\e[1;*C"
+  execute "set <xLeft>=\e[1;*D"
+  execute "set <xHome>=\e[1;*H"
+  execute "set <xEnd>=\e[1;*F"
+  execute "set <Insert>=\e[2;*~"
+  execute "set <Delete>=\e[3;*~"
+  execute "set <PageUp>=\e[5;*~"
+  execute "set <PageDown>=\e[6;*~"
+  execute "set <xF1>=\e[1;*P"
+  execute "set <xF2>=\e[1;*Q"
+  execute "set <xF3>=\e[1;*R"
+  execute "set <xF4>=\e[1;*S"
+  execute "set <F5>=\e[15;*~"
+  execute "set <F6>=\e[17;*~"
+  execute "set <F7>=\e[18;*~"
+  execute "set <F8>=\e[19;*~"
+  execute "set <F9>=\e[20;*~"
+  execute "set <F10>=\e[21;*~"
+  execute "set <F11>=\e[23;*~"
+  execute "set <F12>=\e[24;*~"
+endif
+
 
 " -- editing -------------------------------------------------------------------
 
