From a026e746b613c47f7af9d5a1d1f79f54e61bc155 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Tue, 15 Jan 2013 14:01:45 -0500
Subject: [PATCH] PtagSymbolBeforeParen(): do :help instead of :ptag when
 editing .vim files

---
 vimrc | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/vimrc b/vimrc
index a82b4b8..adc9b77 100644
--- a/vimrc
+++ b/vimrc
@@ -177,7 +177,18 @@ function! PtagSymbolBeforeParen()
     if a:symidx != -1
         let a:line = strpart(a:line, a:symidx)
     endif
-    execute 'silent! ptag ' . a:line
+    if &syntax == 'vim'
+        execute 'silent! help ' . a:line
+        if &filetype == 'help'
+            " we successfully opened the help window
+            execute "normal 1000\<C-w>-"
+            setlocal winheight=10
+            execute "normal \<C-w>\<C-w>"
+            startinsert
+        endif
+    else
+        execute 'silent! ptag ' . a:line
+    endif
 endfunction
 
 "==============================================================================