From 1de0397c71e753b77b42e227bb2e2a7214b0697b Mon Sep 17 00:00:00 2001
From: Mathieu Maret <mathieu.maret@gmail.com>
Date: Mon, 4 Mar 2013 17:07:26 +0100
Subject: [PATCH] [vim] plugin for cscope in python

---
 .vim/plugin/autotags.vim | 23 ++++++++++++++++++++++-
 .vim/plugin/cscope.vim   | 20 +++++++++++++++++---
 2 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/.vim/plugin/autotags.vim b/.vim/plugin/autotags.vim
index ee722b8..3b3a579 100644
--- a/.vim/plugin/autotags.vim
+++ b/.vim/plugin/autotags.vim
@@ -1,4 +1,4 @@
-"   This script is a wrapper for ctags and cscope, so tags for all languages
+"   autotags plugin: a wrapper for ctags and cscope, so tags for all languages
 "   supported by ctags can be build (cscope is additionally used for C/C++).
 "   Tags are stored in a separate directory and don't clog you project tree
 
@@ -183,6 +183,12 @@ fun! s:AutotagsInit()
         let g:autotags_cscope_exe = "cscope"
     endif
 
+    if !exists("g:autotags_pycscope_cmd")
+        let g:autotags_pycscope_pyt = "/soft/Python-2.7.3.i686/bin/python"
+        let g:autotags_pycscope_scr = "~/.vim/plugin/pycscope.py"
+        let g:autotags_pycscope_cmd = g:autotags_pycscope_pyt . " " . g:autotags_pycscope_scr
+    endif
+
     if !exists("g:autotags_cscope_file_extensions")
         let g:autotags_cscope_file_extensions = ".cpp .cc .cxx .m .hpp .hh .h .hxx .c .idl .java"
     endif
@@ -344,6 +350,16 @@ fun! s:AutotagsGenerate(sourcedir, tagsdir)
                 \ "nice -15 " . g:autotags_cscope_exe . " -b -q -k")
         endif
     endif
+    echomsg system("cd " . shellescape(l:cscopedir) . " && " .
+        \ " nice -15 find " . shellescape(a:sourcedir) .
+        \ " -not -regex '.*/\\..*' " .
+        \ " -not -regex '.*/\\%.*' " .
+        \ " -name '*.py' " .
+        \ " -fprint cscope_py.files")
+    if getfsize(l:cscopedir . "/cscope_py.files") > 0
+		echomsg system("cd " . shellescape(l:cscopedir) . " && " .
+            \ "nice -15 " . g:autotags_pycscope_cmd . " -i cscope_py.files -f cscope_py.out" )
+	endif
 endfun
 
 fun! s:AutotagsReload(tagsdir)
@@ -381,6 +397,11 @@ fun! s:AutotagsLoad(tagsdir)
     if filereadable(l:cscopedb)
         exe "cs add " . l:cscopedb
     endif
+
+    let l:cscopepydb = a:tagsdir . "/cscope_py.out"
+    if filereadable(l:cscopepydb)
+        exe "cs add " . l:cscopepydb
+    endif
 endfun
 
 fun! s:AutotagsIsLoaded()
diff --git a/.vim/plugin/cscope.vim b/.vim/plugin/cscope.vim
index fd25c0e..f851a6c 100644
--- a/.vim/plugin/cscope.vim
+++ b/.vim/plugin/cscope.vim
@@ -1,5 +1,5 @@
-"
-" cscope (a tool to browse through C source files ) keymaping
+" cscope keymaping plugin
+" (a tool to browse through C source files)
 "
 
 " if compiled with --enable-cscope
@@ -9,6 +9,19 @@ if has("cscope")
 	endif
 	let g:loaded_cscope   = 1.0
 
+	function! GoToDefinition()
+		try
+			execute "cscope find g " . expand("<cword>")
+		catch /:E259:/
+			try
+				execute "tag " . expand("<cword>")
+			catch /:E257:/
+				execute "normal! gd"
+				execute "nohlsearch"
+			endtry
+		endtry
+	endfunction
+
 	" use both cscope and ctag for 'ctrl-]', ':ta', and 'vim -t'
 	set cscopetag
 	" use ctags before cscope
@@ -34,7 +47,8 @@ if has("cscope")
 	nmap <F5>   :cscope  find s <C-R>=expand("<cword>")<CR><CR>
 	nmap <S-F5> :scscope find s <C-R>=expand("<cword>")<CR><CR>
 	" go to definition with F6 and split with shift+F6 and use ctags with alt+shift+F6
-	nmap <F6>   :cscope  find g <C-R>=expand("<cword>")<CR><CR>
+	"nmap <F6>   :cscope  find g <C-R>=expand("<cword>")<CR><CR>
+	nmap <F6>   :call GoToDefinition()<CR>
 	nmap <S-F6> :scscope find g <C-R>=expand("<cword>")<CR><CR>
 	nmap <M-S-F6> :tag <C-R>=expand("<cword>")<CR><CR>
 	" go to calls with F7 and split with shift+F7