From 4df41adeff4579d16d0a2ad125e13b7c7a90344f Mon Sep 17 00:00:00 2001
From: Peter Odding <peter@peterodding.com>
Date: Mon, 13 Jun 2011 18:16:25 +0200
Subject: Basic support for file type specific tags files!

---
 autoload/xolox/easytags.vim | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

(limited to 'autoload')

diff --git a/autoload/xolox/easytags.vim b/autoload/xolox/easytags.vim
index 3c7f7dd..c78b261 100644
--- a/autoload/xolox/easytags.vim
+++ b/autoload/xolox/easytags.vim
@@ -7,13 +7,14 @@ let s:script = expand('<sfile>:p:~')
 
 " Public interface through (automatic) commands. {{{1
 
-function! xolox#easytags#register() " {{{2
+function! xolox#easytags#register(global) " {{{2
   " Parse the &tags option and get a list of all tags files *including
   " non-existing files* (this is why we can't just call tagfiles()).
   let tagfiles = xolox#misc#option#split_tags(&tags)
   let expanded = map(copy(tagfiles), 'resolve(expand(v:val))')
   " Add the filename to the &tags option when the user hasn't done so already.
-  if index(expanded, xolox#misc#path#absolute(g:easytags_file)) == -1
+  let tagsfile = a:global ? g:easytags_file : xolox#easytags#get_tagsfile()
+  if index(expanded, xolox#misc#path#absolute(tagsfile)) == -1
     " This is a real mess because of bugs in Vim?! :let &tags = '...' doesn't
     " work on UNIX and Windows, :set tags=... doesn't work on Windows. What I
     " mean with "doesn't work" is that tagfiles() == [] after the :let/:set
@@ -21,9 +22,9 @@ function! xolox#easytags#register() " {{{2
     " this is a bug in Vim is to type :set tags= then press <Tab> followed by
     " <CR>. Now you entered the exact same value that the code below also did
     " but suddenly Vim sees the tags file and tagfiles() != [] :-S
-    call add(tagfiles, g:easytags_file)
+    call add(tagfiles, tagsfile)
     let value = xolox#misc#option#join_tags(tagfiles)
-    let cmd = 'set tags=' . escape(value, '\ ')
+    let cmd = (a:global ? 'set' : 'setl') . ' tags=' . escape(value, '\ ')
     if xolox#misc#os#is_win() && v:version < 703
       " TODO How to clear the expression from Vim's status line?
       call feedkeys(":" . cmd . "|let &ro=&ro\<CR>", 'n')
@@ -35,7 +36,7 @@ endfunction
 
 function! xolox#easytags#autoload() " {{{2
   try
-    " Update the entries for the current file in the global tags file?
+    " Update entries for current file in tags file?
     let pathname = s:resolve(expand('%:p'))
     if pathname != ''
       let tags_outdated = getftime(pathname) > getftime(xolox#easytags#get_tagsfile())
@@ -43,7 +44,7 @@ function! xolox#easytags#autoload() " {{{2
         call xolox#easytags#update(1, 0, [])
       endif
     endif
-    " Apply highlighting of tags in global tags file to current buffer?
+    " Apply highlighting of tags to current buffer?
     if &eventignore !~? '\<syntax\>'
       if !exists('b:easytags_last_highlighted')
         call xolox#easytags#highlight()
@@ -376,7 +377,10 @@ endfunction
 
 function! xolox#easytags#get_tagsfile() " {{{2
   let tagsfile = expand(g:easytags_file)
-  if g:easytags_dynamic_files
+  if !empty(g:easytags_by_filetype) && !empty(&filetype)
+    let directory = xolox#misc#path#absolute(g:easytags_by_filetype)
+    let tagsfile = xolox#misc#path#merge(directory, &filetype)
+  elseif g:easytags_dynamic_files
     let files = tagfiles()
     if len(files) > 0
       let tagsfile = files[0]
-- 
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