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Re^2: List::Compare

by jkeenan1 (Deacon)
on Jun 04, 2004 at 14:23 UTC ( #360891=note: print w/replies, xml ) Need Help??


in reply to Re: List::Compare
in thread List::Compare

This point was raised two years ago when I first distributed the module via CPAN. My feeling then was that the fact that the lists being compared were real-world data sets (I can hear my boss saying, "Get me a list of ...") was more relevant to its naming than the fact that the lists were placed into arrays before being passed to the constructor.

I think the point is less valid today, because now the lists do not necessarily be in the form of arrays before being passed to the constructor (or passed to function in List::Compare::Functional). Now, you can pass seen-hashes to the constructor or function -- seen-hashes which imply the existence of underlying lists. See the documentation on seen-hashes

Dave, I looked at Array::Compare when preparing the documentation. It seems to me that your approach is more tightly focused on comparing Perl arrays and takes a different approach to determining 'sameness' than does List::Compare. The two modules are tackling different problems.

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Re^3: List::Compare
by davorg (Chancellor) on Jun 09, 2004 at 08:19 UTC
    My feeling then was that the fact that the lists being compared were real-world data sets (I can hear my boss saying, "Get me a list of ...") was more relevant to its naming than the fact that the lists were placed into arrays before being passed to the constructor.

    Guess we'll just have to agree to disagree on that then. I spend a lot of time helping out on Perl beginners' forums and one of the most common errors I see is the confusion between lists and arrays. Having that confusion backed up in the name of a CPAN module doesn't really help matters.

    I'm seriously considering deprecating Array::Compare in favour of Data::Compare. If I do, would you like to take over Array::Compare so you can use the name for your module?

    --
    <http://www.dave.org.uk>

    "The first rule of Perl club is you do not talk about Perl club."
    -- Chip Salzenberg

      It was only today that I saw that many moons ago davorg wrote:

      I spend a lot of time helping out on Perl beginners' forums and one of the most common errors I see is the confusion between lists and arrays. Having that confusion backed up in the name of a CPAN module doesn't really help matters.

      I concede the point. In hindsight, I probably should have called it Set::Compare (which apparently is still unspoken for!). That name could have encompassed comparisons of arrays and comparison of seen-hashes, both of which List::Compare can do.

      But people are using List::Compare in production, so I think changing the name would only add to the confusion. (I have changed the names of other CPAN modules in response to feedback from other Perl hackers, so I'm not just being persnickety.)

      What I can do is, since I've now got a mailing list for List-Compare, to add this as an FAQ.

      Jim Keenan

        You could rename the module and put a stub called List::Compare into the new distribution. The stub would just defer to Set::Compare (after throwing a warning, when warnings are enabled). That would allow a completely seamless upgrade.

        Makeshifts last the longest.

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