" Test for checking the source code style.

func s:ReportError(fname, lnum, msg)
  if a:lnum > 0
    call assert_report(a:fname .. ' line ' .. a:lnum .. ': ' .. a:msg)
  endif
endfunc

func Test_help_files()
  set nowrapscan

  for fpath in glob('../../../runtime/doc/*.txt', 0, 1)
    let g:ignoreSwapExists = 'e'
    exe 'edit ' .. fpath

    let fname = fnamemodify(fpath, ":t")

    " todo.txt is for developers, it's not need a strictly check
    " version*.txt is a history and large size, so it's not checked
    if fname == 'todo.txt' || fname =~ 'version.*\.txt'
      continue
    endif

    " Check for mixed tabs and spaces
    call cursor(1, 1)
    while 1
      let lnum = search('[^/] \t')
      if fname == 'visual.txt' && getline(lnum) =~ "STRING  \tjkl"
            \ || fname == 'usr_27.txt' && getline(lnum) =~ "\[^\? \t\]"
        continue
      endif
      call s:ReportError(fpath, lnum, 'space before tab')
      if lnum == 0
        break
      endif
    endwhile

    " Check for unnecessary whitespace at the end of a line
    call cursor(1, 1)
    while 1
      let lnum = search('[^/~\\]\s$')
      " skip line that are known to have trailing white space
      if fname == 'map.txt' && getline(lnum) =~ "unmap @@ $"
            \ || fname == 'usr_12.txt' && getline(lnum) =~ "^\t/ \t$"
            \ || fname == 'usr_41.txt' && getline(lnum) =~ "map <F4> o#include  $"
            \ || fname == 'change.txt' && getline(lnum) =~ "foobar bla $"
        continue
      endif
      call s:ReportError('testdir' .. fpath, lnum, 'trailing white space')
      if lnum == 0
        break
      endif
    endwhile


  endfor

  set wrapscan&vim
  bwipe!
endfunc


" vim: shiftwidth=2 sts=2 expandtab