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> Probably the parser should be rewritten in order to take less space, currently it takes almost 250 lines of code: this is too much and leaves little room for all the rest.

Wirth's PL/0 is also pretty much half parser, and I've noticed the same phenomenon in a couple of my projects.

I believe this is why we had no-grammar languages in the early days (LISP, APL, FORTH) — if the rest of the language is small enough, parsing looks like bloat.