#!/usr/bin/env python
# simple WikiPedia client
# usage: pedia.py word

import sys
import httplib
import HTMLParser
import getopt

class WikiPediaParser(HTMLParser.HTMLParser):

	def __init__(self):
		self.is_continue = True
		self.is_content = False
		HTMLParser.HTMLParser.__init__(self)

	def feed(self, data):
		HTMLParser.HTMLParser.feed(self, data)
		return self.is_continue
		
	def handle_data(self, data):
		if not self.is_content:
			return
		print data.strip().replace('\n', ' '),

	def handle_comment(self, data):
		if data.strip() == 'start content':
			self.is_content = True
		if data.strip() == 'end content':
			self.is_content = False
		
	def handle_endtag(self, tag):
		if not self.is_content:
			return
		if tag == 'p':
			self.is_continue = False
			print
			print

def main():
	
	verbose = False
	
	try:
		opts, args = getopt.getopt(sys.argv[1:], "v", ["verbose"])
	except getopt.GetoptError:
		usage()
	
	if len(args) < 1:
		usage()
	
	for o, a in opts:
		if o in ("-v", "--verbose"):
			verbose = True
			
	query = 'http://en.wikipedia.org/wiki/' + args[0]
	conn = httplib.HTTPConnection("en.wikipedia.org")
	conn.request("GET", query, '', {'User-Agent' : 'pedia.py'})
	response = conn.getresponse()
	parser = WikiPediaParser()
	
	if verbose:
		parser.feed(response.read())
	else:
		while True:
			buffer = response.read(512)
			if buffer:
				if not parser.feed(buffer):
					break
			else:
				break

def usage():
	print "usage: pedia.py [-v] word"
	sys.exit(2)

main()