can you please explain why Perl designers took some efforts to allow omitting semicolon before closing brace? >

Because it's unambiguous, and because it allows one to treat it as a statement separator (like the comma) instead of statement terminator.

Getting rid of the others would cause countless ambiguities.

In reply to Re^3: What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO staff by ikegami
in thread What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO staff by likbez

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