From: hoyhoy@...
Date: 2006-03-18T07:13:48+09:00
Subject: Hash of Arrays nItems problem

I'm having a bit of problem using a hash of arrays.  It appears that
nitems are wrong for the individual elements are wrong when I do this:

#!/usr/bin/env ruby
$:.unshift(File.join('..', 'lib'))
require 'http-access2'

h = HTTPAccess2::Client.new()
element = Hash.new([])

while urlstr = ARGV.shift
  response = h.get(urlstr) { |data|

data.gsub(/<(description|title|link)>(.+)<\/(description|title|link)>/)
{
      print $1,"\n"
      element[$1].push($2.gsub(/\s\s+/m," "))
    }
  }
end

print "site description ---> ", site_description, "\n"
print "site title ---------> ", site_title, "\n"
print "description.nitems -> ", element['description'].nitems, "\n"
print "title.nitems -------> ", element['title'].nitems, "\n"

site_description = element['description'].shift
site_title = element['title'].shift

while element['description'].nitems > 0
  print element['title'].shift.gsub(/\n+/, ""),"\n"
  print element['description'].shift.gsub(/\n+/, ""),"\n\n"
end

% ruby rss.rb http://involution.com/rss.php
site description ---> involution.com
site title ---------> http://involution.com
description.nitems -> 30
title.nitems -------> 30

There are 10 of each links, putting a print in the hget enclosure shows
that only 10 descriptions, links, and titles are added, but the
individual array sizes are reported as 30.  What am I doing wrong?

Tony