WRT 5d, a trim function has recently been discussed for the core. See https://github.com/Perl/perl5/issues/17952 and https://github.com/Perl/perl5/pull/17999.

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

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