#

# Copyright (c) 2010 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: 

# Filter class to print log entries for a selected component

#

import filter_interface

import sys

class FilterComp(filter_interface.FilterSAX):

	def __init__(self, params = []):

		"""parameters to this filter are the path of the bld.inf and some flags.

		The bld.inf path can be a substring of the path to match. For example,

		"email" will match an element with bldinf="y:/src/email/group/bld.inf".

		No flags are supported yet; this is for future expansion.

		If no parameters are passed then nothing is printed."""

		self.bldinf = ""

		self.flags = ""

		if len(params) > 0:

			self.bldinf = params[0]

		if len(params) > 1:

			self.flags = params[1]

		super(FilterComp, self).__init__()

	def startDocument(self):

		# mark when we are inside an element with bldinf="the selected one"

		self.inside = False

		# and count nested elements so we can toggle off at the end.

		self.nesting = 0

	def printElementStart(self, name, attributes):

		sys.stdout.write("<" + name)

		for att,val in attributes.items():

			sys.stdout.write(" " + att + "='" + val + "'")

		sys.stdout.write(">")

	def startElement(self, name, attributes):

		if self.inside:

			self.nesting += 1

			self.printElementStart(name, attributes)

			return

		if self.bldinf:

			try:

				if self.bldinf in attributes["bldinf"]:

					self.inside = True

					self.nesting = 1

					self.printElementStart(name, attributes)

			except KeyError:

				pass

	def characters(self, char):

		if self.inside:

			sys.stdout.write(char)

	def endElement(self, name):

		if self.inside:

			sys.stdout.write("</" + name + ">")

		self.nesting -= 1

		if self.nesting == 0:

			self.inside = False

			print

	def endDocument(self):

		pass

	def error(self, exception):

		print filter_interface.Filter.formatError("FilterComp:" + str(exception))

	def fatalError(self, exception):

		print filter_interface.Filter.formatError("FilterComp:" + str(exception))

	def warning(self, exception):

		print filter_interface.Filter.formatWarning("FilterComp:" + str(exception))

# the end