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Re: min and mindex

by rjt (Deacon)
on Nov 06, 2012 at 17:28 UTC ( #1002536=note: print w/replies, xml ) Need Help??


in reply to min and mindex

#!/opt/local/bin/perl use strict; use warnings; use List::MoreUtils qw(firstidx minmax); my @array1 = qw(9 8 7 1 2 3 4 5 6 7); my @array2 = qw(i h g a b c d e f g); my $min = (minmax @array1)[0]; my $mindex = firstidx { $_ eq $min } @array1; print "min = $min, mindex = $mindex, array2[$mindex] = $array2[$mindex +]\n";

This does scan @array1 twice, but that will not be an issue for small arrays, and if you are using the XS version of List::MoreUtils, this implementation may still be faster than rolling your own min/mindex code.

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[Discipulus]: good morning Corion!
[Corion]: I spent parts of yesterday digging into Filter::Simple to make it not change the line numbers of unfiltered code, but I think I need regex help (which will come in a SoPW I guess). I tried @lines = /((?:"...."|[^" \n]+)\n)/gs, but that matched on...
[Corion]: ... foo "\0\0\0\n" bar\n by matching the first \n instead of matching the four-bytes-in- double-quotes part
[Corion]: ... and I still don't understand why ;)
[Corion]: This is because Filter::Simple does some string-trickery, replacing all string literals with "quoted packed numbers"
[Corion]: I fear this might be a bug in the RE engine, but if it is a bug, even fixing won't help me because I need Filter::Simple for Filter::signatures , which provides signatures as a backwards compatibility feature for Perl <5.22 - and these ...
[Corion]: ... won't get a fix anyway ;) My plan B is to encode the string placeholders avoiding \r and \n

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