Improved syntax file and ftplugin for SnipMate snippets.

ftplugin/snippets.vim

@@ -5,10 +5,9 @@ if exists("b:did_ftplugin")
 endif
 let b:did_ftplugin = 1
 
-let b:undo_ftplugin = "setl et< sts< cms< fdm< fde<"
+let b:undo_ftplugin = "setl cms< fdm< fde<"
 
-" Use hard tabs
-setlocal noexpandtab softtabstop=0
+setlocal foldmethod=expr foldexpr=getline(v:lnum)=~'^#\\\|^e\\\|^p'?0:getline(v:lnum)!~'^\\t\\\|^\ \\\|^$'?'>1':1
 
 setlocal commentstring=#\ %s
 setlocal nospell

syntax/snippets.vim

@@ -8,14 +8,13 @@ syn match snipCommand '\%(\\\@<!\%(\\\\\)*\)\@<=`.\{-}\%(\\\@<!\%(\\\\\)*\)\@<=`
 syn match snippet '^snippet.*' contains=multiSnipText,snipKeyword
 syn match snippet '^autosnippet.*' contains=multiSnipText,snipKeyword
 syn match snippet '^extends.*' contains=snipKeyword
-syn match snippet '^version.*' contains=snipKeyword
 syn match snippet '^priority.*' contains=snipKeyword,priority
 syn match priority '\d\+' contained
 syn match multiSnipText '\S\+ \zs.*' contained
-syn match snipKeyword '^(snippet|extends|version|autosnippet|priority)'me=s+8 contained
+syn match snipKeyword '^\%(snippet\|extends\|autosnippet\|priority\)' contained
 " normally we'd want a \s in that group, but that doesn't work => cover common
 " cases with \t and " ".
-syn match snipError "^[^#vsaep\t ].*$"
+syn match snipError '^[^#saep\t ].*$'
 
 hi link snippet       Identifier
 hi link snipComment   Comment