vimrc: Minor documentation update.

[config/dotfiles.git] / vimrc

diff --git a/vimrc b/vimrc
index 3b1ca66256af8e87d772eaf2dc6b94e533f3d804..81c8f1b8132ac7e7711b7e05e208956c47106a36 100644 (file)
--- a/vimrc
+++ b/vimrc
@@ -69,8 +69,8 @@ set history=1000
 " Increase number of possible undos.
 set undolevels=1000
 
+" Remember marks (including the last cursor position) for more files.
 if has('viminfo')
-    " Remember marks (including the last cursor position) for more files.
     set viminfo^='1000
 endif
 
@@ -88,6 +88,23 @@ if has('autocmd')
 endif
 
 
+" HELPER FUNCTIONS
+
+" Check if the given syntax group is available. Thanks to bairui in #vim on
+" Freenode (2012-02-19 01:15 CET) for the try/catch silent highlight idea.
+if has('eval')
+    function! s:HasSyntaxGroup(group)
+        try
+            execute 'silent highlight ' . a:group
+        " \a = [A-Za-z]
+        catch /^Vim\%((\a\+)\)\=:E411/ " 'highlight group not found'
+            return 0
+        endtry
+        return 1
+    endfunction
+endif
+
+
 " EDIT SETTINGS
 
 " Enable automatic file detection, plugin and indention support.
@@ -218,6 +235,14 @@ if v:version >= 700
     set listchars+=nbsp:!
 endif
 
+" Don't draw the vertical split separator by using space as character. Thanks
+" to scp1 in #vim on Freenode (2012-06-16 16:12 CEST) for the idea to use a
+" non-breakable space. But a simple space works as well, as long as the
+" current color scheme is not reset.
+if has('windows') && has('folding')
+    set fillchars+=vert:\  " comment to prevent trailing whitespace
+endif
+
 if has('statusline')
     " Always display the status line even if there is only one window.
     set laststatus=2
@@ -348,7 +373,7 @@ nmap - <C-B>
 " Go to next and previous buffer. Thanks to elik in #vim on Freenode
 " (2010-05-16 18:38 CEST) for this idea.
 nnoremap <silent> gb :bnext<CR>
-nnoremap <silent> gB :bprev<CR>
+nnoremap <silent> gB :bprevious<CR>
 
 " Fast access to buffers.
 nnoremap <silent> <Leader>1 :1buffer<CR>
@@ -485,9 +510,11 @@ endif
 
 " ABBREVIATIONS
 
-" Fix some of my spelling mistakes.
-iabbrev relle reelle
-iabbrev reele reelle
+" Fix some of my spelling mistakes (German).
+inoreabbrev relle reelle
+inoreabbrev reele reelle
+" Fix some of my spelling mistakes (English).
+inoreabbrev completly completely
 
 
 " SYNTAX SETTINGS
@@ -527,7 +554,13 @@ if has('syntax')
 " <antoine.mechelynck@gmail.com> from the Vim mailing list. It can easily be
 " disabled when necessary with :2match (in Vim >= 700).
         if !&diff && exists(':2match')
-            2match Todo /\%>78v./
+            " Use ColorColumn for overlong lines if available and my color
+            " scheme is used.
+            if &t_Co == 256 && <SID>HasSyntaxGroup('ColorColumn')
+                2match ColorColumn /\%>78v./
+            else
+                2match Todo /\%>78v./
+            endif
         elseif !&diff
             match Todo /\%>78v./
         endif
@@ -552,6 +585,12 @@ if has('syntax')
             execute '  for l:x in l:spaces'
                   \ '|     call matchadd("Error", "\\%u" . l:x)'
                   \ '| endfor'
+
+" Special highlight for tabs to reduce their visibility in contrast to other
+" SpecialKey characters (e.g. ^L).
+            if &t_Co == 256 && <SID>HasSyntaxGroup('specialKeyTab')
+                call matchadd('specialKeyTab', '\t')
+            endif
         endif
     endfunction
 " Enable highlights for the current and all new windows. Thanks to bairui in
@@ -565,6 +604,8 @@ if has('syntax')
 
 " Settings for specific filetypes.
 
+    " C
+    let g:c_no_if0_fold = 1 " fix weird double fold in #if0 in recent versions
     " Haskell.
     let g:hs_highlight_delimiters = 1
     let g:hs_highlight_boolean = 1
@@ -599,11 +640,17 @@ if has('eval')
         silent! execute 'call pathogen#runtime_append_all_bundles()'
     endif
 
+" Settings for securemodelines.
+    " Only allow items I need (also includes spl which is not enabled by
+    " default).
+    let g:secure_modelines_allowed_items = ['ft', 'spl', 'fdm',
+                                          \ 'sw', 'sts', 'noet']
+
 " Settings for the NERD commenter.
     " Don't create any mappings I don't want to use.
     let g:NERDCreateDefaultMappings = 0
     " Map toggle comment.
-    map <Leader><Leader> <Plug>NERDCommenterToggle
+    nmap <Leader><Leader> <Plug>NERDCommenterToggle
 
 " XPTemplate settings.
     " Try to maintain snippet rendering even after editing outside of a
@@ -682,7 +729,7 @@ if has('autocmd')
                                  \ setlocal textwidth=72
 " Use the same comment string as for Vim files in Vimperator files.
         autocmd FileType vimperator setlocal commentstring=\"%s
-" Use tex compiler for (La)TeX files.
+" Use TeX compiler for (La)TeX files.
         autocmd FileType tex compiler tex
 
 " FTDETECT AUTO COMMANDS