#!/usr/bin/env python #coding=utf8 import sys import xml.parsers.expat layers = [] for arg in sys.argv: layers.append(arg) parser = xml.parsers.expat.ParserCreate() class XmlParser(object): def __init__(self, layers): self.state_stack = [True] self.last_state = True self.layers = layers def XmlDeclHandler(self, version, encoding, standalone): sys.stdout.write("\n" % (version, encoding)) def StartDoctypeDeclHandler(self, doctypeName, systemId, publicId, has_internal_subset): if publicId != None: sys.stdout.write("\n" %\ (doctypeName, publicId, systemId)) else: sys.stdout.write("\n" % (doctypeName, systemId)) def StartElementHandler(self, name, attributes): if name.lower() == 'g': r = self.last_state and ('id' not in attributes or \ attributes['id'] in self.layers) self.last_state = r self.state_stack.append(r) if not self.last_state: return s = "" for k, v in attributes.items(): s += ' %s="%s"' % (k, v) sys.stdout.write("<%s%s>" % (name, s)) def EndElementHandler(self, name): r = self.last_state if name.lower() == 'g': self.state_stack = self.state_stack[0:-1] self.last_state = self.state_stack[-1] if not r: return sys.stdout.write("" % (name)) def CharacterDataHandler(self, data): if not self.last_state: return sys.stdout.write(data) my_parser = XmlParser(layers) parser.XmlDeclHandler = my_parser.XmlDeclHandler parser.StartDoctypeDeclHandler = my_parser.StartDoctypeDeclHandler parser.StartElementHandler = my_parser.StartElementHandler parser.EndElementHandler = my_parser.EndElementHandler parser.CharacterDataHandler = my_parser.CharacterDataHandler for line in sys.stdin: parser.Parse(line, False) parser.Parse('', True)