#!/usr/bin/env python2.2

### Given a URL and an XPATH, display matching items
### (useful for testing)

import sys
from xml.xpath import Evaluate
from xml.dom import ext
import HtmlDom  # http://www.mnot.net/python/HtmlDom.py

try:
	uri = sys.argv[1]
	path = sys.argv[2]
except:
	sys.stderr.write("""\

Usage: %s uri expression
    uri - location of source page
    expression - XPATH expression to run against it

""" % sys.argv[0])
	sys.exit(1)

dom = HtmlDom.fetch(uri)
found = Evaluate(path, dom.documentElement)
 
for item in found:
	ext.PrettyPrint(item)	
	print "---"