It doesn't seem to be a data structure it's code, with [ key : value , ] hashes and { code  } blocks.

At least I guess so, the example given has at least one syntax error, a comma is missing (between Real: and  String:)

With the sparse information provided it doesn't make sense to speculate.¹

IMHO one more case of How (Not) To Ask A Question

Cheers Rolf

( addicted to the Perl Programming Language)

¹) oops, sorry just realizing that speculations are verboten... ;-)

In reply to Re^4: How would you parse this? by LanX
in thread How would you parse this? by BrowserUk

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