new file mode 100644
--- /dev/null
+++ b/runtime/indent/tilde.vim
@@ -0,0 +1,36 @@
+"Description: Indent scheme for the tilde weblanguage
+"Author: Tobias Rundström <tobi@tobi.nu>
+"URL: http://tilde.tildesoftware.net
+"Last Change: May  8 09:15:09 CEST 2002
+
+if exists ("b:did_indent")
+	finish
+endif
+
+let b:did_indent = 1
+
+setlocal autoindent
+setlocal indentexpr=GetTildeIndent(v:lnum)
+setlocal indentkeys=o,O,)
+
+if exists("*GetTildeIndent")
+	finish
+endif
+
+function GetTildeIndent(lnum)
+	let plnum = prevnonblank(v:lnum-1)
+
+	if plnum == 0
+		return 0
+	endif
+
+	if getline(v:lnum) =~ '^\s*\~\(endif\|else\|elseif\|end\)\>'
+		return indent(v:lnum) - &sw
+	endif
+
+	if getline(plnum) =~ '^\s*\~\(if\|foreach\|foreach_row\|xml_loop\|file_loop\|file_write\|file_append\|imap_loopsections\|imap_index\|imap_list\|ldap_search\|post_loopall\|post_loop\|file_loop\|sql_loop_num\|sql_dbmsselect\|search\|sql_loop\|post\|for\|function_define\|silent\|while\|setvalbig\|mail_create\|systempipe\|mail_send\|dual\|elseif\|else\)\>'
+		return indent(plnum) + &sw
+	else
+		return -1
+	endif
+endfunction