#

# Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of the License "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description: 

# Example of a Filter class using the SAX parser base class

#

import filter_interface

class FilterTagCounter(filter_interface.FilterSAX):

	def __init__(self, params = []):

		"""parameters to this filter are the names of tags to print.

		If no parameters are passed then all tags are reported."""

		self.interesting = params

		super(FilterTagCounter, self).__init__()

	def startDocument(self):

		# for each element name count the number of occurences

		# and the amount of body text contained.

		self.names = []

		self.count = {}

		self.errors = 0

		self.fatals = 0

		self.warns = 0

	def startElement(self, name, attributes):

		if name == "buildlog":

			# print out the attributes of the "top" element

			print "version:"

			for a,v in attributes.items():

				print a, "=", v

		# push name onto the stack of names and increment the count

		self.names.append(name)

		if name in self.count:

			self.count[name][0] += 1

		else:

			self.count[name] = [1, 0]    # occurs, characters	

	def characters(self, char):

		# these are for the current element

		current = self.names[-1]

		self.count[current][1] += len(char)

	def endElement(self, name):

		# pop the name off the stack

		self.names.pop()

	def endDocument(self):

		# report

		print "\nsummary:"

		for name,nos in sorted(self.count.items()):

			if name in self.interesting or len(self.interesting) == 0:

				print name, nos[0], nos[1]

		print "\nparsing:"

		print "errors =", self.errors

		print "fatals =", self.fatals

		print "warnings =", self.warns

	def error(self, exception):

		self.errors += 1

	def fatalError(self, exception):

		self.fatals += 1

	def warning(self, exception):

		self.warns += 1

# the end