The meditation Embedding a mini-language for XML construction into Perl by tmoertel immediately comes to mind (XML domain), and a derived HTML::Writer module. Do these qualify as internal DSL, since code written in them is executed as perl?

Update: tmoertel gave a talk on the subject for the Pittsburgh Perl Mongers. The slides are still available via the Wayback Machine.

perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

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

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