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3607  |  3609
Subject: 
Re: Access a LEGO set DB with your phone!
Newsgroups: 
lugnet.off-topic.geek
Date: 
Wed, 20 Mar 2002 22:22:28 GMT
Viewed: 
301 times
  
In lugnet.off-topic.geek, Christopher L. Weeks writes:
http://guide.lugnet.com/set/list/bynumber.txt
[...]
Also, what tool should I be using the parse that web page?  I can't seem to
get the right expression to make split break it down by the fields apparent
in the table.  Am I missing something simple?

Chris,

Save the attached Perl5 program to a file (parse.pl) and try this:

   cat bynumber.txt | perl parse.pl | more

--Todd
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
#!/usr/local/bin/perl5 -w
use strict;

while (<STDIN>) { last if m/^_/; }    # Skip document header

chop(my $fields = scalar(<STDIN>));   # Extract field names
my @fields = split /\t/, $fields;

my @sets = map {                      # Slurp all the sets into a big huge
    chop;                             # array of hashes.
    my %set;
    @set{@fields} = split /\t/;
    \%set;
} <STDIN>;

dump_list(sort by_setid @sets);       # Print list sorted by set id.
dump_list(sort by_name  @sets);       # Print list sorted by set name.
dump_list(sort by_theme @sets);       # Print list sorted by theme.
exit;

sub by_setid {                        # Compare two sets by id.
    my @A = split /-/, $a->{'Unique ID'};
    my @B = split /-/, $b->{'Unique ID'};
    return ($A[0] <=> $B[0]) || ($A[1] <=> $B[1]);
}

sub by_name {                         # Compare two sets by name.
    return $a->{'Name'} cmp $b->{'Name'};
}

sub by_theme {                        # Compare two sets by theme.
    return $a->{'Theme'} cmp $b->{'Theme'};
}

sub dump_list {                       # Print list of all sets
    foreach my $set (@_) {
        print "-" x 79, "\n";
        foreach my $i (0..$#fields) {
            print "$fields[$i] = $set->{$fields[$i]}\n";
        }
    }
}



Message is in Reply To:
  Re: Access a LEGO set DB with your phone!
 
(...) I were a programmer! I've spent the last eight hours trying to learn enough perl to massage the data into a multidimensional array, but I think I'm giving up, for the day at least. I can't find a reference, tutorial, or FAQ that describes more (...) (22 years ago, 17-Mar-02, to lugnet.off-topic.geek)

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