Is that the language in which the text adventures of Zork et al. were written?

Fond memories of long nights spend in solving them, come back.

But for a solution of your problem: I would put the Inform code after a __DATA__ statement and then read the Inform code into a hash-structure (or more likely a hash of hashes of ... (just guessing as I don't know anything about the Inform language so the exact structure/grammar/rules are totally opaque to me)

Your Perl-Inform parser/interpreter can then manipulate this data structure in the "usual" way.

CountZero

"If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law