updated for version 7.1a
diff --git a/runtime/syntax/xmath.vim b/runtime/syntax/xmath.vim
index e9c3762..83efb08 100644
--- a/runtime/syntax/xmath.vim
+++ b/runtime/syntax/xmath.vim
@@ -1,8 +1,8 @@
" Vim syntax file
" Language: xmath (a simulation tool)
" Maintainer: Dr. Charles E. Campbell, Jr. <NdrOchipS@PcampbellAfamily.Mbiz>
-" Last Change: Apr 12, 2006
-" Version: 5
+" Last Change: Sep 11, 2006
+" Version: 6
" URL: http://mysite.verizon.net/astronaut/vim/index.html#vimlinks_syntax
" For version 5.x: Clear all syntax items
@@ -175,7 +175,7 @@
" String and Character constants
" Highlight special characters (those which have a backslash) differently
syn match xmathSpecial contained "\\\d\d\d\|\\."
-syn region xmathString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=xmathSpecial
+syn region xmathString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=xmathSpecial,@Spell
syn match xmathCharacter "'[^\\]'"
syn match xmathSpecialChar "'\\.'"
@@ -184,9 +184,10 @@
" Comments:
" xmath supports #... (like Unix shells)
" and #{ ... }# comment blocks
+syn cluster xmathCommentGroup contains=xmathString,xmathTodo,@Spell
syn keyword xmathTodo contained COMBAK DEBUG FIXME Todo TODO XXX
-syn match xmathComment "#.*$" contains=xmathString,xmathTodo,@Spell
-syn region xmathCommentBlock start="#{" end="}#" contains=xmathString,xmathTodo
+syn match xmathComment "#.*$" contains=@xmathCommentGroup
+syn region xmathCommentBlock start="#{" end="}#" contains=@xmathCommentGroup
" synchronizing
syn sync match xmathSyncComment grouphere xmathCommentBlock "#{"