" process only once
if exists("my_vim_c_vim_loaded") || &compatible
   finish
endif

let my_vim_c_vim_loaded = 1

" useful for arranging a block of comments
nmap <C-J> vip=

" Setup tabstops to 8 and indents to 8
set tabstop=8
set shiftwidth=8
set noexpandtab

" line wrapping in c comments not c code
set textwidth=78        " Set the line wrap length

syn match ErrorLeadSpace /^ \+/      " highlight any leading spaces
syn match ErrorTailSpace / \+$/      " highlight any trailing spaces
match Error80            /\%>80v.\+/ " highlight anything past 80 in red

" more types...
syn keyword cType uint ubyte ulong uint64_t uint32_t uint16_t uint8_t boolean_t int64_t int32_t int16_t int8_t u_int64_t u_int32_t u_int16_t u_int8_t

syn keyword cOperator likely unlikely

" C-mode formatting options
"   t auto-wrap comment
"   c allows textwidth to work on comments
"   q allows use of gq* for auto formatting
"   l don't break long lines in insert mode
"   r insert '*' on <cr>
"   o insert '*' on newline with 'o'
"   n recognize numbered bullets in comments
set formatoptions=tcqlron


" C-mode options (cinoptions==cino)
" N	number of spaces
" Ns	number of spaces * shiftwidth
" >N	default indent
" eN	extra indent if the { is at the end of a line
" nN	extra indent if there is no {} block
" fN	indent of the { of a function block
" gN    indent of the C++ class scope declarations (public, private, protected)
" {N	indent of a { on a new line after an if,while,for...
" }N	indent of a } in reference to a {
" ^N	extra indent inside a function {}
" :N	indent of case labels
" =N	indent of case body
" lN	align case {} on the case line
" tN	indent of function return type
" +N	indent continued algibreic expressions
" cN	indent of comment line after /*
" )N	vim searches for closing )'s at most N lines away
" *N	vim searches for closing */ at most N lines away
set cinoptions=:0l1t0g0

"      " funky BK macros...
"      ":map <c-e> :!bk edit %<CR>:e!<CR>

" folding
"  - reserve 4 columns on the left for folding tree
"  - fold by syntax, use {}'s
"  - start with all folds open
if winwidth(0) > 80
    set foldcolumn=4
endif

set fdm=syntax
"syn region myFold start="{" end="}" transparent fold
"%foldopen!
"  - bind meta< and meta> for fold colapse and extend
"map <m-,> :foldclose<CR>
"map <m-.> :foldopen<CR>

" cool C abbreviations...
abb #i #include
abb #d #define

source ~/.vim/ccommenter.vim
" source ~/.vim/MakeDoxygenComment.vim

source ~/.vim/localized_vimrc.vim

if has('gui_running')
    let winnum = bufwinnr("__Tag_List__")
    if winnum == -1
        "Tlist
    endif
endif

" 
" next block is from chapter 10 of the windows.txt vim help file 
" :h preview-window
"
":au! CursorHold *.[ch] nested call PreviewWord()
:nmap <LocalLeader>pt :call PreviewWord()<cr>
:func PreviewWord()
:  if &previewwindow                  " don't do this in the preview window
:    return
:  endif
:  let w = expand("<cword>")          " get the word under cursor
:  if w =~ '\a'                       " if the word contains a letter
:
:    " Delete any existing highlight before showing another tag
:    silent! wincmd P                 " jump to preview window
:    if &previewwindow                        " if we really get there...
:      match none                     " delete existing highlight
:      wincmd p                       " back to old window
:    endif
:
:    " Try displaying a matching tag for the word under the cursor
:    try
:       exe "ptag! " . w
:    catch
:      return
:    endtry
:
:    silent! wincmd P                 " jump to preview window
:    if &previewwindow                " if we really get there...
:      if has("folding")
:        silent! .foldopen            " don't want a closed fold
:      endif
:      call search("$", "b")          " to end of previous line
:      let w = substitute(w, '\\', '\\\\', "")
:      call search('\<\V' . w . '\>') " position cursor on match
:      " Add a match highlight to the word at this position
:      hi previewWord term=bold ctermbg=green guibg=green
:      exe 'match previewWord "\%' . line(".") . 'l\%' . col(".") . 'c\k*"'
:      wincmd p                       " back to old window
:    endif
:  endif
:endfun