Time to quote chromatic :)

The "Is It a DSL or an API?" Ten Question Checklist

Not every API is a DSL.

Otherwise every class allowing cascading method calls would be a DSL.

It doesn't "read like a conversation" and it has a lot of redundant code, mainly the objects and arrows on the LHS.

The find examples you've listed are very well designed and could easily be structured in a better readable way, being extended with a DSL frontend.

here a very good discussion on it

http://www.infoq.com/news/2007/06/dsl-or-not

update

I think I have to correct myself, since Path::Class tries to mimic XPath it should be qualified as DSL if XPath is a language.

My main problem is that I don't consider XPath to be a particularly good readable.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^5: Which internal DSL are there in Perl? (Domain Specific Languages - Part 1) by LanX
in thread Which internal DSL are there in Perl? (Domain Specific Languages - Part 1) by LanX

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