Support for sessions with multiple TagList windows

See issue #66 on GitHub:
  #66

README.md

@@ -223,11 +223,11 @@ This variable isn't really an option but if you want to avoid loading the vim-se
 
 ## Compatibility with other plug-ins
 
-Vim's [:mksession][mksession] command isn't really compatible with plug-ins that create buffers with generated content and because of this the vim-session plug-in includes specific workarounds for such plug-ins:
+Vim's [:mksession][mksession] command isn't really compatible with plug-ins that create buffers with generated content and because of this the vim-session plug-in includes specific workarounds for a couple of popular plug-ins:
 
- * [BufExplorer](http://www.vim.org/scripts/script.php?script_id=42), [Conque Shell](http://www.vim.org/scripts/script.php?script_id=2771), [NERD tree](http://www.vim.org/scripts/script.php?script_id=1658) and [Project](http://www.vim.org/scripts/script.php?script_id=69) windows are supported;
+ * [BufExplorer](http://www.vim.org/scripts/script.php?script_id=42), [Conque Shell](http://www.vim.org/scripts/script.php?script_id=2771), [NERD tree](http://www.vim.org/scripts/script.php?script_id=1658), [Project](http://www.vim.org/scripts/script.php?script_id=69) and [taglist](http://www.vim.org/scripts/script.php?script_id=273) windows are supported;
  * When [shell.vim](http://peterodding.com/code/vim/shell/) is installed Vim's full-screen state is persisted;
- * The [netrw](http://vimdoc.sourceforge.net/htmldoc/pi_netrw.html#netrw-start) and [taglist.vim](http://www.vim.org/scripts/script.php?script_id=273) plug-ins support sessions out of the box.
+ * The [netrw](http://vimdoc.sourceforge.net/htmldoc/pi_netrw.html#netrw-start) plug-in supports sessions out of the box.
 
 If your favorite plug-in doesn't work with the vim-session plug-in drop me a mail and I'll see what I can do. Please include a link to the plug-in in your e-mail so that I can install and test the plug-in.
 
@@ -240,9 +240,9 @@ Recently this plug-in switched from reimplementing [:mksession][mksession] to ac
 <!-- Start of generated documentation -->
 
 The documentation of the 34 functions below was extracted from
-1 Vim scripts on July  4, 2013 at 01:25.
+1 Vim scripts on July  5, 2013 at 00:31.
 
-### Public API for the vim-notes plug-in
+### Public API for the vim-session plug-in
 
 #### The `xolox#session#save_session()` function
 

autoload/xolox/session.vim

@@ -1,10 +1,10 @@
-" Public API for the vim-notes plug-in.
+" Public API for the vim-session plug-in.
 "
 " Author: Peter Odding
-" Last Change: July 4, 2013
+" Last Change: July 5, 2013
 " URL: http://peterodding.com/code/vim/session/
 
-let g:xolox#session#version = '2.4.6'
+let g:xolox#session#version = '2.4.7'
 
 " Public API for session persistence. {{{1
 
@@ -189,11 +189,8 @@ function! xolox#session#save_state(commands) " {{{2
     call extend(a:commands, map(lines, 's:state_filter(v:val)'))
     " Re-implement Vim's special handling of the initial, empty buffer.
     call add(a:commands, "if exists('s:wipebuf')")
-    call add(a:commands, "  if empty(bufname(s:wipebuf)) && !getbufvar(s:wipebuf, '&modified')")
-    call add(a:commands, "    let s:wipebuflines = getbufline(s:wipebuf, 1, '$')")
-    call add(a:commands, "    if len(s:wipebuflines) <= 1 && empty(get(s:wipebuflines, 0, ''))")
-    call add(a:commands, "      silent exe 'bwipe ' . s:wipebuf")
-    call add(a:commands, "    endif")
+    call add(a:commands, "  if empty(bufname(s:wipebuf))")
+    call s:cleanup_after_plugin(a:commands, 's:wipebuf')
     call add(a:commands, "  endif")
     call add(a:commands, "endif")
     return 1
@@ -244,6 +241,9 @@ function! s:state_filter(line) " {{{3
   elseif a:line =~ '^file .\{-}\[BufExplorer\]$'
     " Same trick (about the E95) for BufExplorer.
     return '" ' . a:line
+  elseif a:line =~ '^file .\{-}__Tag_List__$'
+    " Same trick (about the E95) for TagList.
+    return '" ' . a:line
   elseif a:line =~ '^args '
     " The :mksession command adds an :args line to the session file, but when
     " :args is executed during a session restore it edits the first file it is
@@ -273,6 +273,11 @@ function! xolox#session#save_special_windows(session) " {{{2
   let tabpage = tabpagenr()
   let window = winnr()
   let s:nerdtrees = {}
+  call add(a:session, '')
+  call add(a:session, '" Support for special windows like quick-fix and plug-in windows.')
+  call add(a:session, '" Everything down here is generated by vim-session (not supported')
+  call add(a:session, '" by :mksession out of the box).')
+  call add(a:session, '')
   try
     if xolox#session#include_tabs()
       tabdo call s:check_special_tabpage(a:session)
@@ -299,6 +304,7 @@ function! s:check_special_window(session)
   " If we detected a special window and the argument to the command is not a
   " pathname, this variable should be set to false to disable normalization.
   let do_normalize_path = 1
+  let bufname = expand('%:t')
   if exists('b:NERDTreeRoot')
     if !has_key(s:nerdtrees, bufnr('%'))
       let command = 'NERDTree'
@@ -308,9 +314,12 @@ function! s:check_special_window(session)
       let command = 'NERDTreeMirror'
       let argument = ''
     endif
-  elseif expand('%:t') == '[BufExplorer]'
+  elseif bufname == '[BufExplorer]'
     let command = 'BufExplorer'
     let argument = ''
+  elseif bufname == '__Tag_List__'
+    let command = 'Tlist'
+    let argument = ''
   elseif exists('g:proj_running') && g:proj_running == bufnr('%')
     let command = 'Project'
     let argument = expand('%:p')
@@ -340,9 +349,7 @@ function! s:check_special_window(session)
       endif
       call add(a:session, command . ' ' . fnameescape(argument))
     endif
-    call add(a:session, 'if bufnr("%") != s:bufnr_save')
-    call add(a:session, '  execute "bwipeout" s:bufnr_save')
-    call add(a:session, 'endif')
+    call s:cleanup_after_plugin(a:session, 's:bufnr_save')
     call add(a:session, 'execute "cd" fnameescape(s:cwd_save)')
     return 1
   endif
@@ -364,6 +371,15 @@ function! s:nerdtree_persist()
   endif
 endfunction
 
+function! s:cleanup_after_plugin(commands, bufnr_var)
+  call add(a:commands, "if !getbufvar(" . a:bufnr_var . ", '&modified')")
+  call add(a:commands, "  let s:wipebuflines = getbufline(" . a:bufnr_var . ", 1, '$')")
+  call add(a:commands, "  if len(s:wipebuflines) <= 1 && empty(get(s:wipebuflines, 0, ''))")
+  call add(a:commands, "    silent execute 'bwipeout' " . a:bufnr_var)
+  call add(a:commands, "  endif")
+  call add(a:commands, "endif")
+endfunction
+
 " Automatic commands to manage the default session. {{{1
 
 function! xolox#session#auto_load() " {{{2

doc/session.txt

@@ -35,7 +35,7 @@ Contents ~
  5. Compatibility with other plug-ins |session-compatibility-with-other-plug-ins|
  6. Known issues                                         |session-known-issues|
  7. Function reference                             |session-function-reference|
-  1. Public API for the vim-notes plug-in |session-public-api-for-vim-notes-plug-in|
+  1. Public API for the vim-session plug-in |public-api-for-vim-session-plug-in|
    1. The |xolox#session#save_session()| function
    2. The |xolox#session#save_globals()| function
    3. The |xolox#session#save_features()| function
@@ -453,15 +453,12 @@ Compatibility with other plug-ins ~
 
 Vim's |:mksession| command isn't really compatible with plug-ins that create
 buffers with generated content and because of this the vim-session plug-in
-includes specific workarounds for such plug-ins:
+includes specific workarounds for a couple of popular plug-ins:
 
-- BufExplorer [11], Conque Shell [12], NERD tree [13] and Project [14]
-  windows are supported;
-
-- When shell.vim [15] is installed Vim's full-screen state is persisted;
-
-- The netrw (see |netrw-start|) and taglist.vim [16] plug-ins support
-  sessions out of the box.
+- BufExplorer [11], Conque Shell [12], NERD tree [13], Project [14] and
+  taglist [15] windows are supported;
+- When shell.vim [16] is installed Vim's full-screen state is persisted;
+- The netrw (see |netrw-start|) plug-in supports sessions out of the box.
 
 If your favorite plug-in doesn't work with the vim-session plug-in drop me a
 mail and I'll see what I can do. Please include a link to the plug-in in your
@@ -484,11 +481,11 @@ might take a while...)
 Function reference ~
 
 The documentation of the 34 functions below was extracted from 1 Vim scripts on
-July 4, 2013 at 01:25.
+July 5, 2013 at 00:31.
 
 -------------------------------------------------------------------------------
-                                     *session-public-api-for-vim-notes-plug-in*
-Public API for the vim-notes plug-in ~
+                                           *public-api-for-vim-session-plug-in*
+Public API for the vim-session plug-in ~
 
 -------------------------------------------------------------------------------
 The *xolox#session#save_session()* function
@@ -820,8 +817,8 @@ References ~
 [12] http://www.vim.org/scripts/script.php?script_id=2771
 [13] http://www.vim.org/scripts/script.php?script_id=1658
 [14] http://www.vim.org/scripts/script.php?script_id=69
-[15] http://peterodding.com/code/vim/shell/
-[16] http://www.vim.org/scripts/script.php?script_id=273
+[15] http://www.vim.org/scripts/script.php?script_id=273
+[16] http://peterodding.com/code/vim/shell/
 [17] http://peterodding.com/code/vim/session
 [18] http://peterodding.com/code/vim/shell
 [19] http://www.vim.org/scripts/script.php?script_id=3150