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Re: subroutine help

by frozenwithjoy (Curate)
on Nov 29, 2012 at 07:05 UTC ( #1006174=note: print w/ replies, xml ) Need Help??


in reply to subroutine help

A few things to help you out:

  • Your code doesn't compile, because there is a semi-colon missing at the end of @array = $form =~ /[A-Z][a-z]?|\d+/ig
  • You assign the result of getweight(), which is in list context, to a scalar. As a result, $weight just equals 6 (the number of elements in the array). If I were you, I'd skip the subroutine and array and make weight a hash directly from the get-go:
#!/usr/bin/env perl use strict; use warnings; use feature 'say'; use Data::Printer; print "Enter a chemical formula: "; chomp( my $form = <> ); my %weight = $form =~ /[A-Z][a-z]?|\d+/ig; p %weight; __END__ Enter a chemical formula: C12H22O11 { C 12, H 22, O 11 }


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Re^2: subroutine help
by perlguru22 (Acolyte) on Nov 29, 2012 at 08:04 UTC
    Sorry I think my kindle modified it and removed the ;
      Oh, those pesky kindles! (I wonder whatever happened to the 'dog ate my semi-colon' excuse?)

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