Does anyone know of a way to teach vim that C sources in a python checkout should have 4-space indents without changing the defaults for other C files?
I use this in my vimrc: "----------------------------------------------------------------------------" " indentation: use detectindent plugin if possible "----------------------------------------------------------------------------" set autoindent set smartindent try let g:detectindent_preferred_expandtab = 1 let g:detectindent_preferred_tabsize = 8 let g:detectindent_preferred_indent = 4 source $VIMRUNTIME/plugin/detectindent.vim au BufNewFile,BufRead * .* DetectIndent catch set smarttab set expandtab set tabstop=8 set shiftwidth=4 set softtabstop=4 set textwidth=80 endtry *** And this is plugin/detectindent.vim: " Name: detectindent (global plugin) " Version: 1.0 " Author: Ciaran McCreesh <ciaranm at gentoo.org> " Updates: http://dev.gentoo.org/~ciaranm/vim/ " Purpose: Detect file indent settings " " License: You may redistribute this plugin under the same terms as Vim " itself. " " Usage: :DetectIndent " " " to prefer expandtab to noexpandtab when detection is " " impossible: " :let g:detectindent_preferred_expandtab = 1 " " " to set a preferred indent level when detection is " " impossible: " :let g:detectindent_preferred_indent = 4 " " Requirements: Untested on Vim versions below 6.2 fun! <SID>IsCommentStart(line) " &comments isn't reliable if &ft == "c" || &ft == "cpp" return -1 != match(a:line, '/\*') else return 0 endif endfun fun! <SID>IsCommentEnd(line) if &ft == "c" || &ft == "cpp" return -1 != match(a:line, '\*/') else return 0 endif endfun fun! <SID>DetectIndent() let l:has_leading_tabs = 0 let l:has_leading_spaces = 0 let l:shortest_leading_spaces_run = 0 let l:longest_leading_spaces_run = 0 let l:idx_end = line("$") let l:idx = 1 while l:idx <= l:idx_end let l:line = getline(l:idx) " try to skip over comment blocks, they can give really screwy indent " settings in c/c++ files especially if <SID>IsCommentStart(l:line) while l:idx <= l:idx_end && ! <SID>IsCommentEnd(l:line) let l:line = getline(l:idx) let l:idx = l:idx + 1 endwhile let l:idx = l:idx + 1 continue endif let l:leading_char = strpart(l:line, 0, 1) if l:leading_char == "\t" let l:has_leading_tabs = 1 elseif l:leading_char == " " " only interested if we don't have a run of spaces followed by a " tab. if -1 == match(l:line, '^ \+\t') let l:has_leading_spaces = 1 let l:spaces = strlen(matchstr(l:line, '^ \+')) if l:shortest_leading_spaces_run == 0 || \ l:spaces < l:shortest_leading_spaces_run let l:shortest_leading_spaces_run = l:spaces endif if l:spaces > l:longest_leading_spaces_run let l:longest_leading_spaces_run = l:spaces endif endif endif let l:idx = l:idx + 1 endwhile if l:has_leading_tabs && ! l:has_leading_spaces " tabs only, no spaces set noexpandtab if exists("g:detectindent_preferred_tabsize") let &shiftwidth = g:detectindent_preferred_indent let &tabstop = g:detectindent_preferred_indent endif elseif l:has_leading_spaces && ! l:has_leading_tabs " spaces only, no tabs set expandtab let &shiftwidth = l:shortest_leading_spaces_run elseif l:has_leading_spaces && l:has_leading_tabs " spaces and tabs set noexpandtab let &shiftwidth = l:shortest_leading_spaces_run " mmmm, time to guess how big tabs are if l:longest_leading_spaces_run < 2 let &tabstop = 2 elseif l:longest_leading_spaces_run < 4 let &tabstop = 4 else let &tabstop = 8 endif else " no spaces, no tabs if exists("g:detectindent_preferred_tabsize") let &shiftwidth = g:detectindent_preferred_indent let &tabstop = g:detectindent_preferred_indent endif if exists("g:detectindent_preferred_expandtab") set expandtab endif endif endfun command! -nargs=0 DetectIndent call <SID>DetectIndent()