[TxMt] defining string quotation marks...

In Stata, strings can begin with the two characters: `", end with the characters: "'. How can textmate recognise these as quotation marks? The following code in the Stata bundle won't work, because textmate doesn't parse the 'begin' and 'end' lines as I'd like it to. Instead it (understandably) complains that it finds a " where there should be a ; on the second line below. Is there some way to get textmate to recognise this quotation convention?

{ name = 'string.quoted.single.stata'; begin = "`""; end = ""'"; patterns = ( { name = 'constant.character.escaped.untitled'; match = '\.'; }, ); },

Any help much appreciated.