Since defining or exporting a subroutine already changes the syntax a bit, all procedural modules could count.

If you're looking for larger scale syntax changes, you can look for modules that depend on Devel::Declare or on Filter::Simple. Not a complete list, but maybe a start.

Perl 6 - links to (nearly) everything that is Perl 6.

In reply to Re: list of syntax extensions by moritz
in thread list of syntax extensions by Anonymous Monk

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