diff --git a/runtime/indent/zimbu.vim b/runtime/indent/zimbu.vim
new file mode 100644
index 0000000..a01510d
--- /dev/null
+++ b/runtime/indent/zimbu.vim
@@ -0,0 +1,123 @@
+" Vim indent file
+" Language:	Zimbu
+" Maintainer:	Bram Moolenaar <Bram@vim.org>
+" Last Change:	2012 May 17
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+   finish
+endif
+let b:did_indent = 1
+
+setlocal ai nolisp nocin
+setlocal indentexpr=GetZimbuIndent(v:lnum)
+setlocal indentkeys=0{,0},!^F,o,O,0=ELSE,0=ELSEIF,0=CASE,0=DEFAULT,0=FINALLY
+
+" We impose recommended defaults: no Tabs, 'shiftwidth' = 2
+setlocal sw=2 et
+
+let b:undo_indent = "setl et< ai< indentexpr="
+
+" Only define the function once.
+if exists("*GetZimbuIndent")
+  finish
+endif
+
+" Come here when loading the script the first time.
+
+let s:maxoff = 50	" maximum number of lines to look backwards for ()
+
+func GetZimbuIndent(lnum)
+  let prevLnum = prevnonblank(a:lnum - 1)
+  if prevLnum == 0
+    " This is the first non-empty line, use zero indent.
+    return 0
+  endif
+
+  " Taken from Python indenting:
+  " If the previous line is inside parenthesis, use the indent of the starting
+  " line.
+  " Trick: use the non-existing "dummy" variable to break out of the loop when
+  " going too far back.
+  call cursor(prevLnum, 1)
+  let parlnum = searchpair('(\|{\|\[', '', ')\|}\|\]', 'nbW',
+	  \ "line('.') < " . (prevLnum - s:maxoff) . " ? dummy :"
+	  \ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
+	  \ . " =~ '\\(Comment\\|String\\|Char\\)$'")
+  if parlnum > 0
+    let plindent = indent(parlnum)
+    let plnumstart = parlnum
+  else
+    let plindent = indent(prevLnum)
+    let plnumstart = prevLnum
+  endif
+
+
+  " When inside parenthesis: If at the first line below the parenthesis add
+  " two 'shiftwidth', otherwise same as previous line.
+  " i = (a
+  "       + b
+  "       + c)
+  call cursor(a:lnum, 1)
+  let p = searchpair('(\|{\|\[', '', ')\|}\|\]', 'bW',
+	  \ "line('.') < " . (a:lnum - s:maxoff) . " ? dummy :"
+	  \ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
+	  \ . " =~ '\\(Comment\\|String\\|Char\\)$'")
+  if p > 0
+    if p == prevLnum
+      " When the start is inside parenthesis, only indent one 'shiftwidth'.
+      let pp = searchpair('(\|{\|\[', '', ')\|}\|\]', 'bW',
+	  \ "line('.') < " . (a:lnum - s:maxoff) . " ? dummy :"
+	  \ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
+	  \ . " =~ '\\(Comment\\|String\\|Char\\)$'")
+      if pp > 0
+	return indent(prevLnum) + &sw
+      endif
+      return indent(prevLnum) + &sw * 2
+    endif
+    if plnumstart == p
+      return indent(prevLnum)
+    endif
+    return plindent
+  endif
+
+  let prevline = getline(prevLnum)
+  let thisline = getline(a:lnum)
+
+  " If this line is not a comment and the previous one is then move the
+  " previous line further back.
+  if thisline !~ '^\s*#'
+    while prevline =~ '^\s*#'
+      let prevLnum = prevnonblank(prevLnum - 1)
+      if prevLnum == 0
+	" Only comment lines before this, no indent
+	return 0
+      endif
+      let prevline = getline(prevLnum)
+      let plindent = indent(prevLnum)
+    endwhile
+  endif
+
+  if prevline =~ '^\s*\(IF\|\|ELSEIF\|ELSE\|GENERATE_IF\|\|GENERATE_ELSEIF\|GENERATE_ELSE\|WHILE\|REPEAT\|TRY\|CATCH\|FINALLY\|FOR\|DO\|SWITCH\|CASE\|DEFAULT\|FUNC\|VIRTUAL\|ABSTRACT\|DEFINE\|REPLACE\|FINAL\|PROC\|MAIN\|NEW\|ENUM\|CLASS\|BITS\|MODULE\|SHARED\)\>'
+    let plindent += &sw
+  endif
+  if thisline =~ '^\s*\(}\|ELSEIF\>\|ELSE\>\|CATCH\|FINALLY\|GENERATE_ELSEIF\>\|GENERATE_ELSE\>\|UNTIL\>\)'
+    let plindent -= &sw
+  endif
+  if thisline =~ '^\s*\(CASE\>\|DEFAULT\>\)' && prevline !~ '^\s*SWITCH\>'
+    let plindent -= &sw
+  endif
+
+  " line up continued comment that started after some code
+  "   String something   # comment comment
+  "                      # comment
+  if a:lnum == prevLnum + 1 && thisline =~ '^\s*#' && prevline !~ '^\s*#'
+    let n = match(prevline, '#')
+    if n > 1
+      let plindent = n
+    endif
+  endif
+
+  return plindent
+endfunc
+