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https://github.com/python/cpython
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1e0611b208
information from the Expat library that is not part of its public API. Do not print this information as the format of the string may (and will) change as Expat evolves. Add additional tests to make sure the ParserCreate() function raises the right exceptions on illegal parameters.
184 lines
5.4 KiB
Python
184 lines
5.4 KiB
Python
# Very simple test - Parse a file and print what happens
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# XXX TypeErrors on calling handlers, or on bad return values from a
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# handler, are obscure and unhelpful.
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from xml.parsers import expat
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class Outputter:
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def StartElementHandler(self, name, attrs):
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print 'Start element:\n\t', repr(name), attrs
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def EndElementHandler(self, name):
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print 'End element:\n\t', repr(name)
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def CharacterDataHandler(self, data):
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data = data.strip()
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if data:
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print 'Character data:'
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print '\t', repr(data)
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def ProcessingInstructionHandler(self, target, data):
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print 'PI:\n\t', repr(target), repr(data)
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def StartNamespaceDeclHandler(self, prefix, uri):
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print 'NS decl:\n\t', repr(prefix), repr(uri)
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def EndNamespaceDeclHandler(self, prefix):
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print 'End of NS decl:\n\t', repr(prefix)
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def StartCdataSectionHandler(self):
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print 'Start of CDATA section'
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def EndCdataSectionHandler(self):
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print 'End of CDATA section'
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def CommentHandler(self, text):
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print 'Comment:\n\t', repr(text)
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def NotationDeclHandler(self, *args):
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name, base, sysid, pubid = args
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print 'Notation declared:', args
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def UnparsedEntityDeclHandler(self, *args):
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entityName, base, systemId, publicId, notationName = args
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print 'Unparsed entity decl:\n\t', args
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def NotStandaloneHandler(self, userData):
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print 'Not standalone'
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return 1
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def ExternalEntityRefHandler(self, *args):
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context, base, sysId, pubId = args
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print 'External entity ref:', args[1:]
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return 1
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def DefaultHandler(self, userData):
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pass
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def DefaultHandlerExpand(self, userData):
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pass
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def confirm(ok):
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if ok:
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print "OK."
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else:
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print "Not OK."
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out = Outputter()
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parser = expat.ParserCreate(namespace_separator='!')
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# Test getting/setting returns_unicode
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parser.returns_unicode = 0; confirm(parser.returns_unicode == 0)
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parser.returns_unicode = 1; confirm(parser.returns_unicode == 1)
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parser.returns_unicode = 2; confirm(parser.returns_unicode == 1)
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parser.returns_unicode = 0; confirm(parser.returns_unicode == 0)
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HANDLER_NAMES = [
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'StartElementHandler', 'EndElementHandler',
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'CharacterDataHandler', 'ProcessingInstructionHandler',
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'UnparsedEntityDeclHandler', 'NotationDeclHandler',
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'StartNamespaceDeclHandler', 'EndNamespaceDeclHandler',
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'CommentHandler', 'StartCdataSectionHandler',
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'EndCdataSectionHandler',
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'DefaultHandler', 'DefaultHandlerExpand',
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#'NotStandaloneHandler',
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'ExternalEntityRefHandler'
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]
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for name in HANDLER_NAMES:
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setattr(parser, name, getattr(out, name))
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data = '''\
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<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
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<?xml-stylesheet href="stylesheet.css"?>
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<!-- comment data -->
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<!DOCTYPE quotations SYSTEM "quotations.dtd" [
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<!ELEMENT root ANY>
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<!NOTATION notation SYSTEM "notation.jpeg">
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<!ENTITY acirc "â">
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<!ENTITY external_entity SYSTEM "entity.file">
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<!ENTITY unparsed_entity SYSTEM "entity.file" NDATA notation>
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%unparsed_entity;
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]>
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<root attr1="value1" attr2="value2ὀ">
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<myns:subelement xmlns:myns="http://www.python.org/namespace">
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Contents of subelements
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</myns:subelement>
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<sub2><![CDATA[contents of CDATA section]]></sub2>
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&external_entity;
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</root>
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'''
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# Produce UTF-8 output
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parser.returns_unicode = 0
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try:
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parser.Parse(data, 1)
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except expat.error:
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print '** Error', parser.ErrorCode, expat.ErrorString(parser.ErrorCode)
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print '** Line', parser.ErrorLineNumber
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print '** Column', parser.ErrorColumnNumber
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print '** Byte', parser.ErrorByteIndex
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# Try the parse again, this time producing Unicode output
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parser = expat.ParserCreate(namespace_separator='!')
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parser.returns_unicode = 1
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for name in HANDLER_NAMES:
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setattr(parser, name, getattr(out, name))
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try:
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parser.Parse(data, 1)
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except expat.error:
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print '** Error', parser.ErrorCode, expat.ErrorString(parser.ErrorCode)
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print '** Line', parser.ErrorLineNumber
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print '** Column', parser.ErrorColumnNumber
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print '** Byte', parser.ErrorByteIndex
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# Try parsing a file
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parser = expat.ParserCreate(namespace_separator='!')
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parser.returns_unicode = 1
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for name in HANDLER_NAMES:
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setattr(parser, name, getattr(out, name))
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import StringIO
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file = StringIO.StringIO(data)
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try:
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parser.ParseFile(file)
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except expat.error:
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print '** Error', parser.ErrorCode, expat.ErrorString(parser.ErrorCode)
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print '** Line', parser.ErrorLineNumber
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print '** Column', parser.ErrorColumnNumber
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print '** Byte', parser.ErrorByteIndex
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# Tests that make sure we get errors when the namespace_separator value
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# is illegal, and that we don't for good values:
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print
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print "Testing constructor for proper handling of namespace_separator values:"
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expat.ParserCreate()
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expat.ParserCreate(namespace_separator=None)
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expat.ParserCreate(namespace_separator=' ')
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print "Legal values tested o.k."
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try:
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expat.ParserCreate(namespace_separator=42)
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except TypeError, e:
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print "Caught expected TypeError:"
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print e
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else:
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print "Failed to catch expected TypeError."
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try:
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expat.ParserCreate(namespace_separator='too long')
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except ValueError, e:
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print "Caught expected ValueError:"
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print e
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else:
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print "Failed to catch expected ValueError."
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try:
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expat.ParserCreate(namespace_separator='') # too short
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except ValueError, e:
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print "Caught expected ValueError:"
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print e
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else:
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print "Failed to catch expected ValueError."
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