To have a 'proper' DSL I reckon you need two things, and understanding that a thing can and should be broken out into its own sublanguage, and the ability to do so. The first takes a certain kind of nouse, or common sense. The latter requires knowing how to construct a parser properly and some knowledge of language design.
Knowing how to write a parser is not particularly complex but as the industry is driven by requirements more of knowing 'big data' frameworks rather than stuff that is often more useful, well, that's what you get, and that includes people who try to parse XML with regular expressions (check out this classic answer <https://www.amazon.co.uk/Language-Implementation-Patterns-Do...
They're all worth investing the time in.
Maybe look into 'coding' your original algorithm in xml and using various xslt templates to output to your target languages ? Or possibly antlr (http://www.antlr.org/ http://www.amazon.com/Definitive-Antlr-Reference-Domain-Specific-Programmers/dp/0978739256/ref=sr_1_1?s=books&ie=UTF8&qid=1303114884&sr=1-1).
To the best of my knowledge, you cannot do this. The book doesn't mention anything. Maybe you can ask at the mail list: firstname.lastname@example.org
ANTLR is a very nice parser generator written in Java. There's a terrific book available, too.
The Dragon Book is often considered a good starting point. However, I will also recommend the ANTLR book
I believe TextMate uses Antlr for parsing. Look for it inside the package. Antlr has an Objective-C target, but this doesn't mean that Allen Odgaard chose that particular language, but it is highly likely, given that TextMate is a Cocoa application.
Terrence Parr, the creator of Antlr, has written two books on/using Antlr:
The Definitive Antlr Reference
Language Implementation Patterns
Both are worth reading if you are interested in parsing, etc.... Of course, one should eventually move on to the dragon book,, but these books, along with Antlr, will allow you to get moving quickly.
Maybe ANTLR will do it for you. It's a nice parser generator with a fine book available for documentation.