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-rw-r--r--vim/filetype.vim23
1 files changed, 20 insertions, 3 deletions
diff --git a/vim/filetype.vim b/vim/filetype.vim
index ad2545a0..6bb52b96 100644
--- a/vim/filetype.vim
+++ b/vim/filetype.vim
@@ -42,6 +42,14 @@ function! s:StripRepeat()
endfunction
+" Check whether the first line was changed and looks like a shebang, and if
+" so, re-run filetype detection
+function! s:CheckShebang()
+ if line('''[') == 1 && stridx(getline(1), '#!') == 0
+ doautocmd filetypedetect BufRead
+ endif
+endfunction
+
" Use our own filetype detection rules
augroup filetypedetect
autocmd!
@@ -165,6 +173,8 @@ augroup filetypedetect
" Vim help files
autocmd BufNewFile,BufRead
\ ~/.vim/doc/?*.txt
+ \,*/vim-*/doc/?*.txt
+ \,*/*.vim/doc/?*.txt
\,$VIMRUNTIME/doc/?*.txt
\ setfiletype help
" HTML files
@@ -499,13 +509,20 @@ augroup filetypedetect
\| call s:StripRepeat()
\|endif
- " If we *still* don't have a filetype, run the scripts.vim file that will
- " examine actual file contents--but only the first one; don't load the
- " system one at all
+ " If we still don't have a filetype, run the scripts.vim file that performs
+ " cleverer checks including looking at actual file contents--but only my
+ " custom one; don't load the system one at all.
autocmd BufNewFile,BufRead,StdinReadPost
\ *
\ if !did_filetype()
\| runtime scripts.vim
\|endif
+ " If supported, on leaving insert mode, check whether the first line was
+ " changed and looks like a shebang format, and if so, re-run filetype
+ " detection
+ if v:version > 700
+ autocmd InsertLeave * call s:CheckShebang()
+ endif
+
augroup END