Re: Inspect the members of a Posix Character Class


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by LanX (Saint)

on Jul 29, 2021 at 12:52 UTC ( [id://11135480]=note: print w/replies, xml )

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> But what if you want to reverse that?

What does that mean? Could you give an example?

did you check perlrecharclass and do you expect also to get a list of characters from the shown intersection operations?

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery}

Comment on Re: Inspect the members of a Posix Character Class

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Re^2: Inspect the members of a Posix Character Class by NERDVANA (Deacon) on Jul 29, 2021 at 13:11 UTC
Added an example for you. (which actually runs a lot faster than I expected, but is still very inefficient) And I don't really need intersections. perlrecharclass doesn't seem to mention any API for querying perls internal tables.	[reply]
Re^3: Inspect the members of a Posix Character Class by LanX (Saint) on Jul 29, 2021 at 13:22 UTC
other linked perldocs in that doc are much more specific what each char-class includes, but I didn't want to go into details. See https://perldoc.perl.org/perluniprops#Properties-accessible-through-%5Cp%7B%7D-and-%5CP%7B%7D for instance. If your requirements are really so general, my best idea is to cache the filtering - like choroba already suggested in the meantime. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]

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