Syntax highlight snippets files

doc/minisnip.txt

@@ -62,6 +62,9 @@ Minisnip adds the `minisnip` |filetype| for syntax highlighting to all files
 matching `*/minisnip/*`. If you store your snippets in another directory then
 you'll have to create your own |autocmd| to do this.
 
+Further, if |g:minisnip_nested_syntax| is |TRUE| (the default), filetype aware
+snippets files will be syntax highlighted according to their filetype.
+
 -------------------------------------------------------------------------------
                                                          *'g:minisnip_trigger'*
 Default: '<Tab>'
@@ -148,5 +151,11 @@ these placeholders will be targeted last. >
     # END FUNCTION {{+~\~1+}}
 <
 
+-------------------------------------------------------------------------------
+                                                   *'g:minisnip_nested_syntax'*
+Default: 1
+
+For filetype specific snippets files, include the syntax highlighting for that
+filetype when editing the snippets file.
 
  vim:tw=78:fo=tcq2:isk=!-~,^*,^\|,^\":ts=8:ft=help:norl:

syntax/minisnip.vim

@@ -23,6 +23,21 @@ if exists("b:current_syntax")
     finish
 endif
 
+if !exists("g:minisnip_nested_syntax")
+    let g:minisnip_nested_syntax = 1
+endif
+
+if g:minisnip_nested_syntax
+    let s:filetype = get(matchlist(expand("%:t:r"), '_\([^_]\+\)_.\+$'), 1, '')
+    if !empty(s:filetype)
+        for s:ft in split(s:filetype, '\.')
+            silent! exe "runtime! syntax/" . s:ft . ".vim"
+            unlet! b:current_syntax
+        endfor
+    endif
+    unlet s:filetype s:ft
+endif
+
 " Get the minisnip defined delimiters
 exe "syntax match minisnipKeyword /" . g:minisnip_startdelim . "/"
 exe "syntax match minisnipKeyword /" . g:minisnip_enddelim . "/"