1 files changed, 32 insertions, 0 deletions
diff --git a/vim/autoload/indent.vim b/vim/autoload/indent.vim
new file mode 100644
index 00000000..3e850c63
--- /dev/null
+++ b/vim/autoload/indent.vim
@@ -0,0 +1,32 @@
+function! indent#spaces(...) abort
+  setlocal expandtab
+  let &l:shiftwidth = a:0
+        \ ? a:1
+        \ : 0
+  let &l:softtabstop = has#('patch-7.3.693')
+        \ ? -1
+        \ : &l:shiftwidth
+  call indent#undo()
+endfunction
+
+function! indent#tabs() abort
+  setlocal noexpandtab shiftwidth< softtabstop<
+  call indent#undo()
+endfunction
+
+function! indent#undo() abort
+  if exists('b:undo_indent_set')
+    return
+  endif
+  let l:undo = 'call indent#reset()'
+  if exists('b:undo_indent')
+    let b:undo_indent .= '|'.l:undo
+  else
+    let b:undo_indent = l:undo
+  endif
+  let b:undo_indent_set = 1
+endfunction
+
+function! indent#reset() abort
+    setlocal expandtab< shiftwidth< softtabstop< tabstop<
+endfunction