mirror of https://github.com/python/cpython
389 lines
12 KiB
Python
389 lines
12 KiB
Python
# Very simple test - Parse a file and print what happens
|
|
|
|
# XXX TypeErrors on calling handlers, or on bad return values from a
|
|
# handler, are obscure and unhelpful.
|
|
|
|
import pyexpat
|
|
from xml.parsers import expat
|
|
|
|
from test.test_support import sortdict, TestFailed
|
|
|
|
class Outputter:
|
|
def StartElementHandler(self, name, attrs):
|
|
print('Start element:\n\t', repr(name), sortdict(attrs))
|
|
|
|
def EndElementHandler(self, name):
|
|
print('End element:\n\t', repr(name))
|
|
|
|
def CharacterDataHandler(self, data):
|
|
data = data.strip()
|
|
if data:
|
|
print('Character data:')
|
|
print('\t', repr(data))
|
|
|
|
def ProcessingInstructionHandler(self, target, data):
|
|
print('PI:\n\t', repr(target), repr(data))
|
|
|
|
def StartNamespaceDeclHandler(self, prefix, uri):
|
|
print('NS decl:\n\t', repr(prefix), repr(uri))
|
|
|
|
def EndNamespaceDeclHandler(self, prefix):
|
|
print('End of NS decl:\n\t', repr(prefix))
|
|
|
|
def StartCdataSectionHandler(self):
|
|
print('Start of CDATA section')
|
|
|
|
def EndCdataSectionHandler(self):
|
|
print('End of CDATA section')
|
|
|
|
def CommentHandler(self, text):
|
|
print('Comment:\n\t', repr(text))
|
|
|
|
def NotationDeclHandler(self, *args):
|
|
name, base, sysid, pubid = args
|
|
print('Notation declared:', args)
|
|
|
|
def UnparsedEntityDeclHandler(self, *args):
|
|
entityName, base, systemId, publicId, notationName = args
|
|
print('Unparsed entity decl:\n\t', args)
|
|
|
|
def NotStandaloneHandler(self, userData):
|
|
print('Not standalone')
|
|
return 1
|
|
|
|
def ExternalEntityRefHandler(self, *args):
|
|
context, base, sysId, pubId = args
|
|
print('External entity ref:', args[1:])
|
|
return 1
|
|
|
|
def DefaultHandler(self, userData):
|
|
pass
|
|
|
|
def DefaultHandlerExpand(self, userData):
|
|
pass
|
|
|
|
|
|
def confirm(ok):
|
|
if ok:
|
|
print("OK.")
|
|
else:
|
|
print("Not OK.")
|
|
|
|
out = Outputter()
|
|
parser = expat.ParserCreate(namespace_separator='!')
|
|
|
|
# Test getting/setting returns_unicode
|
|
parser.returns_unicode = 0; confirm(parser.returns_unicode == 0)
|
|
parser.returns_unicode = 1; confirm(parser.returns_unicode == 1)
|
|
parser.returns_unicode = 2; confirm(parser.returns_unicode == 1)
|
|
parser.returns_unicode = 0; confirm(parser.returns_unicode == 0)
|
|
|
|
# Test getting/setting ordered_attributes
|
|
parser.ordered_attributes = 0; confirm(parser.ordered_attributes == 0)
|
|
parser.ordered_attributes = 1; confirm(parser.ordered_attributes == 1)
|
|
parser.ordered_attributes = 2; confirm(parser.ordered_attributes == 1)
|
|
parser.ordered_attributes = 0; confirm(parser.ordered_attributes == 0)
|
|
|
|
# Test getting/setting specified_attributes
|
|
parser.specified_attributes = 0; confirm(parser.specified_attributes == 0)
|
|
parser.specified_attributes = 1; confirm(parser.specified_attributes == 1)
|
|
parser.specified_attributes = 2; confirm(parser.specified_attributes == 1)
|
|
parser.specified_attributes = 0; confirm(parser.specified_attributes == 0)
|
|
|
|
HANDLER_NAMES = [
|
|
'StartElementHandler', 'EndElementHandler',
|
|
'CharacterDataHandler', 'ProcessingInstructionHandler',
|
|
'UnparsedEntityDeclHandler', 'NotationDeclHandler',
|
|
'StartNamespaceDeclHandler', 'EndNamespaceDeclHandler',
|
|
'CommentHandler', 'StartCdataSectionHandler',
|
|
'EndCdataSectionHandler',
|
|
'DefaultHandler', 'DefaultHandlerExpand',
|
|
#'NotStandaloneHandler',
|
|
'ExternalEntityRefHandler'
|
|
]
|
|
for name in HANDLER_NAMES:
|
|
setattr(parser, name, getattr(out, name))
|
|
|
|
data = '''\
|
|
<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
|
|
<?xml-stylesheet href="stylesheet.css"?>
|
|
<!-- comment data -->
|
|
<!DOCTYPE quotations SYSTEM "quotations.dtd" [
|
|
<!ELEMENT root ANY>
|
|
<!NOTATION notation SYSTEM "notation.jpeg">
|
|
<!ENTITY acirc "â">
|
|
<!ENTITY external_entity SYSTEM "entity.file">
|
|
<!ENTITY unparsed_entity SYSTEM "entity.file" NDATA notation>
|
|
%unparsed_entity;
|
|
]>
|
|
|
|
<root attr1="value1" attr2="value2ὀ">
|
|
<myns:subelement xmlns:myns="http://www.python.org/namespace">
|
|
Contents of subelements
|
|
</myns:subelement>
|
|
<sub2><![CDATA[contents of CDATA section]]></sub2>
|
|
&external_entity;
|
|
</root>
|
|
'''
|
|
|
|
# Produce UTF-8 output
|
|
parser.returns_unicode = 0
|
|
try:
|
|
parser.Parse(data, 1)
|
|
except expat.error:
|
|
print('** Error', parser.ErrorCode, expat.ErrorString(parser.ErrorCode))
|
|
print('** Line', parser.ErrorLineNumber)
|
|
print('** Column', parser.ErrorColumnNumber)
|
|
print('** Byte', parser.ErrorByteIndex)
|
|
|
|
# Try the parse again, this time producing Unicode output
|
|
parser = expat.ParserCreate(namespace_separator='!')
|
|
parser.returns_unicode = 1
|
|
|
|
for name in HANDLER_NAMES:
|
|
setattr(parser, name, getattr(out, name))
|
|
try:
|
|
parser.Parse(data, 1)
|
|
except expat.error:
|
|
print('** Error', parser.ErrorCode, expat.ErrorString(parser.ErrorCode))
|
|
print('** Line', parser.ErrorLineNumber)
|
|
print('** Column', parser.ErrorColumnNumber)
|
|
print('** Byte', parser.ErrorByteIndex)
|
|
|
|
# Try parsing a file
|
|
parser = expat.ParserCreate(namespace_separator='!')
|
|
parser.returns_unicode = 1
|
|
|
|
for name in HANDLER_NAMES:
|
|
setattr(parser, name, getattr(out, name))
|
|
import StringIO
|
|
file = StringIO.StringIO(data)
|
|
try:
|
|
parser.ParseFile(file)
|
|
except expat.error:
|
|
print('** Error', parser.ErrorCode, expat.ErrorString(parser.ErrorCode))
|
|
print('** Line', parser.ErrorLineNumber)
|
|
print('** Column', parser.ErrorColumnNumber)
|
|
print('** Byte', parser.ErrorByteIndex)
|
|
|
|
|
|
# Tests that make sure we get errors when the namespace_separator value
|
|
# is illegal, and that we don't for good values:
|
|
print()
|
|
print("Testing constructor for proper handling of namespace_separator values:")
|
|
expat.ParserCreate()
|
|
expat.ParserCreate(namespace_separator=None)
|
|
expat.ParserCreate(namespace_separator=' ')
|
|
print("Legal values tested o.k.")
|
|
try:
|
|
expat.ParserCreate(namespace_separator=42)
|
|
except TypeError as e:
|
|
print("Caught expected TypeError:")
|
|
print(e)
|
|
else:
|
|
print("Failed to catch expected TypeError.")
|
|
|
|
try:
|
|
expat.ParserCreate(namespace_separator='too long')
|
|
except ValueError as e:
|
|
print("Caught expected ValueError:")
|
|
print(e)
|
|
else:
|
|
print("Failed to catch expected ValueError.")
|
|
|
|
# ParserCreate() needs to accept a namespace_separator of zero length
|
|
# to satisfy the requirements of RDF applications that are required
|
|
# to simply glue together the namespace URI and the localname. Though
|
|
# considered a wart of the RDF specifications, it needs to be supported.
|
|
#
|
|
# See XML-SIG mailing list thread starting with
|
|
# http://mail.python.org/pipermail/xml-sig/2001-April/005202.html
|
|
#
|
|
expat.ParserCreate(namespace_separator='') # too short
|
|
|
|
# Test the interning machinery.
|
|
p = expat.ParserCreate()
|
|
L = []
|
|
def collector(name, *args):
|
|
L.append(name)
|
|
p.StartElementHandler = collector
|
|
p.EndElementHandler = collector
|
|
p.Parse("<e> <e/> <e></e> </e>", 1)
|
|
tag = L[0]
|
|
if len(L) != 6:
|
|
print("L should only contain 6 entries; found", len(L))
|
|
for entry in L:
|
|
if tag is not entry:
|
|
print("expected L to contain many references to the same string", end=' ')
|
|
print("(it didn't)")
|
|
print("L =", repr(L))
|
|
break
|
|
|
|
# Tests of the buffer_text attribute.
|
|
import sys
|
|
|
|
class TextCollector:
|
|
def __init__(self, parser):
|
|
self.stuff = []
|
|
|
|
def check(self, expected, label):
|
|
require(self.stuff == expected,
|
|
"%s\nstuff = %r\nexpected = %r"
|
|
% (label, self.stuff, map(unicode, expected)))
|
|
|
|
def CharacterDataHandler(self, text):
|
|
self.stuff.append(text)
|
|
|
|
def StartElementHandler(self, name, attrs):
|
|
self.stuff.append("<%s>" % name)
|
|
bt = attrs.get("buffer-text")
|
|
if bt == "yes":
|
|
parser.buffer_text = 1
|
|
elif bt == "no":
|
|
parser.buffer_text = 0
|
|
|
|
def EndElementHandler(self, name):
|
|
self.stuff.append("</%s>" % name)
|
|
|
|
def CommentHandler(self, data):
|
|
self.stuff.append("<!--%s-->" % data)
|
|
|
|
def require(cond, label):
|
|
# similar to confirm(), but no extraneous output
|
|
if not cond:
|
|
raise TestFailed(label)
|
|
|
|
def setup(handlers=[]):
|
|
parser = expat.ParserCreate()
|
|
require(not parser.buffer_text,
|
|
"buffer_text not disabled by default")
|
|
parser.buffer_text = 1
|
|
handler = TextCollector(parser)
|
|
parser.CharacterDataHandler = handler.CharacterDataHandler
|
|
for name in handlers:
|
|
setattr(parser, name, getattr(handler, name))
|
|
return parser, handler
|
|
|
|
parser, handler = setup()
|
|
require(parser.buffer_text,
|
|
"text buffering either not acknowledged or not enabled")
|
|
parser.Parse("<a>1<b/>2<c/>3</a>", 1)
|
|
handler.check(["123"],
|
|
"buffered text not properly collapsed")
|
|
|
|
# XXX This test exposes more detail of Expat's text chunking than we
|
|
# XXX like, but it tests what we need to concisely.
|
|
parser, handler = setup(["StartElementHandler"])
|
|
parser.Parse("<a>1<b buffer-text='no'/>2\n3<c buffer-text='yes'/>4\n5</a>", 1)
|
|
handler.check(["<a>", "1", "<b>", "2", "\n", "3", "<c>", "4\n5"],
|
|
"buffering control not reacting as expected")
|
|
|
|
parser, handler = setup()
|
|
parser.Parse("<a>1<b/><2><c/> \n 3</a>", 1)
|
|
handler.check(["1<2> \n 3"],
|
|
"buffered text not properly collapsed")
|
|
|
|
parser, handler = setup(["StartElementHandler"])
|
|
parser.Parse("<a>1<b/>2<c/>3</a>", 1)
|
|
handler.check(["<a>", "1", "<b>", "2", "<c>", "3"],
|
|
"buffered text not properly split")
|
|
|
|
parser, handler = setup(["StartElementHandler", "EndElementHandler"])
|
|
parser.CharacterDataHandler = None
|
|
parser.Parse("<a>1<b/>2<c/>3</a>", 1)
|
|
handler.check(["<a>", "<b>", "</b>", "<c>", "</c>", "</a>"],
|
|
"huh?")
|
|
|
|
parser, handler = setup(["StartElementHandler", "EndElementHandler"])
|
|
parser.Parse("<a>1<b></b>2<c/>3</a>", 1)
|
|
handler.check(["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "3", "</a>"],
|
|
"huh?")
|
|
|
|
parser, handler = setup(["CommentHandler", "EndElementHandler",
|
|
"StartElementHandler"])
|
|
parser.Parse("<a>1<b/>2<c></c>345</a> ", 1)
|
|
handler.check(["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "345", "</a>"],
|
|
"buffered text not properly split")
|
|
|
|
parser, handler = setup(["CommentHandler", "EndElementHandler",
|
|
"StartElementHandler"])
|
|
parser.Parse("<a>1<b/>2<c></c>3<!--abc-->4<!--def-->5</a> ", 1)
|
|
handler.check(["<a>", "1", "<b>", "</b>", "2", "<c>", "</c>", "3",
|
|
"<!--abc-->", "4", "<!--def-->", "5", "</a>"],
|
|
"buffered text not properly split")
|
|
|
|
# Test handling of exception from callback:
|
|
def StartElementHandler(name, attrs):
|
|
raise RuntimeError(name)
|
|
|
|
parser = expat.ParserCreate()
|
|
parser.StartElementHandler = StartElementHandler
|
|
|
|
try:
|
|
parser.Parse("<a><b><c/></b></a>", 1)
|
|
except RuntimeError as e:
|
|
if e.args[0] != "a":
|
|
print("Expected RuntimeError for element 'a'; found %r" % e.args[0])
|
|
else:
|
|
print("Expected RuntimeError for 'a'")
|
|
|
|
# Test Current* members:
|
|
class PositionTest:
|
|
|
|
def __init__(self, expected_list, parser):
|
|
self.parser = parser
|
|
self.parser.StartElementHandler = self.StartElementHandler
|
|
self.parser.EndElementHandler = self.EndElementHandler
|
|
self.expected_list = expected_list
|
|
self.upto = 0
|
|
|
|
def StartElementHandler(self, name, attrs):
|
|
self.check_pos('s')
|
|
|
|
def EndElementHandler(self, name):
|
|
self.check_pos('e')
|
|
|
|
def check_pos(self, event):
|
|
pos = (event,
|
|
self.parser.CurrentByteIndex,
|
|
self.parser.CurrentLineNumber,
|
|
self.parser.CurrentColumnNumber)
|
|
require(self.upto < len(self.expected_list),
|
|
'too many parser events')
|
|
expected = self.expected_list[self.upto]
|
|
require(pos == expected,
|
|
'expected position %s, got %s' % (expected, pos))
|
|
self.upto += 1
|
|
|
|
|
|
parser = expat.ParserCreate()
|
|
handler = PositionTest([('s', 0, 1, 0), ('s', 5, 2, 1), ('s', 11, 3, 2),
|
|
('e', 15, 3, 6), ('e', 17, 4, 1), ('e', 22, 5, 0)],
|
|
parser)
|
|
parser.Parse('''<a>
|
|
<b>
|
|
<c/>
|
|
</b>
|
|
</a>''', 1)
|
|
|
|
|
|
def test_parse_only_xml_data():
|
|
# http://python.org/sf/1296433
|
|
#
|
|
xml = "<?xml version='1.0' encoding='iso8859'?><s>%s</s>" % ('a' * 1025)
|
|
# this one doesn't crash
|
|
#xml = "<?xml version='1.0'?><s>%s</s>" % ('a' * 10000)
|
|
|
|
def handler(text):
|
|
raise Exception
|
|
|
|
parser = expat.ParserCreate()
|
|
parser.CharacterDataHandler = handler
|
|
|
|
try:
|
|
parser.Parse(xml)
|
|
except:
|
|
pass
|
|
|
|
test_parse_only_xml_data()
|