Dtd

xml/mephi.dtd

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+<!ELEMENT mephi (faculty+)>
+<!ELEMENT faculty (department+)>
+<!ELEMENT department (group+)>
+<!ELEMENT group (student+)>
+<!ELEMENT student (#PCDATA)>
+<!ATTLIST faculty name CDATA #REQUIRED>
+<!ATTLIST department number CDATA #REQUIRED>
+<!ATTLIST group grnum CDATA #REQUIRED>

xml/mephi.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<mephi>
+  <faculty name="K">
+    <department number="36">
+      <group grnum="1">
+        <student>Артемьев Дмитрий</student>
+        <student>Анисимова Наталья</student>
+        <student>Бубенко Кирилл</student>
+        <student>Джелоухова Алена</student>
+        <student>Заманов Айнур</student>
+        <student>Михеев Денис</student>
+        <student>Пивоваров Александр</student>
+        <student>Самсонов Артем</student>
+        <student>Соловьева Аня</student>
+        <student>Суханова Любовь</student>
+        <student>Тармазаков Евгений</student>
+        <student>Титоренко Алексей</student>
+        <student>Штанько Александр</student>
+      </group>
+      <group grnum="2">
+        <student>Ахметсафин Владислав</student>
+        <student>Галкин Александр</student>
+        <student>Головко Ирина</student>
+        <student>Джумайло Евгений</student>
+        <student>Ерохин Владимир</student>
+        <student>Каталкина Виктория</student>
+        <student>Левин Андрей</student>
+        <student>Молочков Ярослав</student>
+        <student>Моряшова Виктория</student>
+        <student>Полстянкин Константин</student>
+        <student>Пурик Яна</student>
+        <student>Разживин Никита</student>
+        <student>Редюк Сергей</student>
+        <student>Рябов Петр</student>
+        <student>Скок Дарья</student>
+        <student>Стрекалов Олег</student>
+        <student>Чухненко Александра</student>
+      </group>
+    </department>
+  </faculty>
+</mephi>  

xml/parser.py

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+#! /usr/bin/env python
+#-*- coding: UTF-8 -*-
+import sys, libxml2, optparse
+
+def space(dep):
+	for i in range(0, dep):
+		sys.stdout.write(" ")
+
+depth = 0
+def view(node):
+	global depth
+	print
+	space(depth)
+	sys.stdout.write(node.name+" ")
+	if node.properties is not None:
+		for _property in node.properties:
+			if _property.type == "attribute":
+				#print _property.name
+				sys.stdout.write(_property.content+" ")
+	child = node.children
+	depth = depth+1
+	while child.next is not None:
+		if child.type == "element":
+			view(child)
+		child = child.next
+	depth = depth-1
+	sys.stdout.write(child.content)
+
+def open(xml_file):
+	doc = libxml2.parseFile(xml_file)
+	root = doc.getRootElement()
+	#print root.name
+	#print root.content
+	view(root)
+ 	doc.freeDoc()
+
+def validate(xml_file, dtd_file):
+	doc = libxml2.parseFile(xml_file)
+	dtd = libxml2.parseDTD(None, dtd_file)
+	ctxt = libxml2.newValidCtxt()
+	ret = doc.validateDtd(ctxt, dtd)
+	dtd.freeDtd()
+	doc.freeDoc()
+	return ret
+
+def main(argv):
+	op = optparse.OptionParser(description = U"Проверка на соответствие DTD", prog="dtd", version="0.1", usage=U"%prog")
+	op.add_option("-x", "--xml", dest="xml", help=U"XML документ", metavar="XML_FILE")
+	op.add_option("-d", "--dtd", dest="dtd", help=U"DTD документ", metavar="DTD_FILE")
+	options, arguments = op.parse_args()
+	if options.xml and options.dtd:
+		open(options.xml)
+		validate(options.xml, options.dtd)
+	else: op.print_help()
+
+if __name__ == '__main__':
+	main(sys.argv)