Here is a simplified version of your script which uses XML::FeedPP to get the XML, XML::Rules to extract the data and HTML::TreeBuilder::XPath to extract the times from the summary. I have also included a simple regex to extract the times should you not be able to install the XPath module. Adapt as you require.

#!/usr/bin/perl -w
use strict;
use warnings;
use XML::FeedPP;
use XML::Rules;
use HTML::TreeBuilder::XPath;

# input
my $source = 'http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary
+/4.5_day.atom'; 
my $atom_xml = XML::FeedPP::Atom->new( $source )->to_string();

# output
my $outfile = "quake.txt";
open my $fh,'>',$outfile or die "$!";

# parser
my @rules = (
  _default => 'content',
  title    => \&title,
  entry    => \&report_item,
);
my $parser  = XML::Rules->new(rules => \@rules);

# process
report_header();
$parser->parse( $atom_xml );
close $fh;

sub title {
  my $title = $_[1]->{'_content'};
  'magnitude' => substr($title,2,3), 
  'place'     => substr($title,8); 
}

sub report_item {

  my $summary = $_[1]->{summary};
  
  # extract time from summary using XPath  
  my $tree = HTML::TreeBuilder::XPath->new_from_content($summary);
  my @dd = $tree->findvalues('//dd');
  
  # extract time using regex
  my $t1;
  my $t2;
  if ($summary =~ m!<dt>Time</dt>
  <dd>(.*)\ UTC</dd>
  <dd>(.*)\ at\ epicenter</dd>!x){
    $t1 = $1;
    $t2 = $2;
  }
   
  print $fh <<EOF
  Place     : $_[1]->{place}
  Magnitude : $_[1]->{magnitude}
  Updated   : $_[1]->{updated}
  Location  : $_[1]->{'georss:point'}
  Time Xpath: $dd[0]
              $dd[1]  
  Time regex: $t1 
            : $t2  
  Summary   : $summary 

EOF
}

sub report_header {
  my $cur_time = localtime;
  print $fh <<EOF
  # This Quake file created by quake_parsing_9
  # Matt Coblentz; Perl version unknown
  # For more information, see the USGS website
  # Last Updated: $cur_time
  
EOF
}

[download]
HTH
poj

In reply to Re: XML parsing with XML::Rules by poj
in thread XML parsing with XML::Rules by mcoblentz

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