vim/indent/cpp.vim

   1 "
   2 " VIM C++ Indent file.
   3 " Inspired by Google's C++ Style guide:
   4 " http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
   5 "
   6
   7 if exists("b:did_indent")
   8     finish
   9 endif
  10 let b:did_indent = 1
  11
  12
  13 function! GoogleCppIndent()
  14     let l:cline_num = line('.')
  15
  16     let l:orig_indent = cindent(l:cline_num)
  17
  18     if l:orig_indent == 0 | return 0 | endif
  19
  20     let l:pline_num = prevnonblank(l:cline_num - 1)
  21     let l:pline = getline(l:pline_num)
  22     if l:pline =~# '^\s*template' | return l:pline_indent | endif
  23
  24     if l:orig_indent != &shiftwidth | return l:orig_indent | endif
  25
  26     let l:in_comment = 0
  27     let l:pline_num = prevnonblank(l:cline_num - 1)
  28     while l:pline_num > -1
  29         let l:pline = getline(l:pline_num)
  30         let l:pline_indent = indent(l:pline_num)
  31
  32         if l:in_comment == 0 && l:pline =~ '^.\{-}\(/\*.\{-}\)\@<!\*/'
  33             let l:in_comment = 1
  34         elseif l:in_comment == 1
  35             if l:pline =~ '/\*\(.\{-}\*/\)\@!'
  36                 let l:in_comment = 0
  37             endif
  38         elseif l:pline_indent == 0
  39             if l:pline !~# '\(#define\)\|\(^\s*//\)\|\(^\s*{\)'
  40                 if l:pline =~# '^\s*namespace.*'
  41                     return 0
  42                 else
  43                     return l:orig_indent
  44                 endif
  45             elseif l:pline =~# '\\$'
  46                 return l:orig_indent
  47             endif
  48         else
  49             return l:orig_indent
  50         endif
  51
  52         let l:pline_num = prevnonblank(l:pline_num - 1)
  53     endwhile
  54
  55     return l:orig_indent
  56 endfunction
  57
  58 setlocal indentexpr=GoogleCppIndent()
  59
  60 let b:undo_indent = "setl sw< ts< sts< et< tw< wrap< cin< cino< inde<"