get_jazzy103_current_song.rb

#!/usr/bin/env ruby

require 'open-uri'
require 'nokogiri'

API_URL = 'http://opml.radiotime.com/Describe.ashx?id=s142523'
XPATH_HAS_SONG = '//has_song'
XPATH_CURRENT_SONG = '//current_song'
XPATH_CURRENT_ARTIST = '//current_artist'

doc = Nokogiri::HTML.parse(open(API_URL))
has_song = doc.xpath(XPATH_HAS_SONG).text == 'true'
current_song = doc.xpath(XPATH_CURRENT_SONG).text
current_artist = doc.xpath(XPATH_CURRENT_ARTIST).text

if has_song
  puts "#{current_song} - #{current_artist}"
else
  STDERR.puts 'No Song Info Available'
  return 1
end

get_jazzy103_current_song.sh

#!/bin/sh

STATION_ID="s142523"
API_URL="http://opml.radiotime.com/Describe.ashx?id=$STATION_ID"

# First put all info into one variable
CURRENT_INFO="$( curl --silent -L "$API_URL" | \
    egrep '(<current_(song|artist)>|has_song)' | \
    sed -e 's/&amp;/&/g' )"

# Extract fields
HAS_SONG="$( echo "$CURRENT_INFO" | \
    grep 'has_song' | \
    sed -e 's/[^>]*>\(.*\)<[^>]*>/\1/' )"
CURRENT_SONG="$( echo "$CURRENT_INFO" | \
    grep 'current_song' | \
    sed -e 's/[^>]*>\(.*\)<[^>]*>/\1/' )"
CURRENT_ARTIST="$( echo "$CURRENT_INFO" | \
    grep 'current_artist' | \
    sed -e 's/[^>]*>\(.*\)<[^>]*>/\1/' )"

# Strip CRLF that they, for some reason, add at radiotime
HAS_SONG="$( echo $HAS_SONG | tr -d '\r' )"
CURRENT_SONG="$( echo $CURRENT_SONG | tr -d '\r' )"
CURRENT_ARTIST="$( echo $CURRENT_ARTIST | tr -d '\r' )"

if [ $HAS_SONG = 'true' ]; then
    echo "$CURRENT_SONG - $CURRENT_ARTIST"
else
    echo "No Song Info Available"
fi