Ticket #178 (new defect)

Opened 4 years ago

Last modified 5 weeks ago

Problem with parsing ':

Reported by: Samuel.Hym@… Owned by: xi
Priority: normal Component: pyyaml
Severity: normal Keywords:
Cc:

Description

Hello,

The simple string ':' should be parsed, as far as I understand YAML specification, as { : }. pyyaml simply gives up (ipython trace, with the debian version 3.09-5 of python-yaml, Python 2.6.6, IPython 0.10):

In [14]: yaml.load(':')

ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (5, 0))


ParserError? Traceback (most recent call last)

/tmp/<ipython console> in <module>()

/usr/lib/python2.6/dist-packages/yaml/init.pyc in load(stream, Loader)

56 """ 57 loader = Loader(stream)

---> 58 return loader.get_single_data()

59 60 def load_all(stream, Loader=Loader):

/usr/lib/python2.6/dist-packages/yaml/constructor.pyc in get_single_data(self)

40 def get_single_data(self): 41 # Ensure that the stream contains a single document and construct it.

---> 42 node = self.get_single_node()

43 if node is not None: 44 return self.construct_document(node)

/usr/lib/python2.6/dist-packages/yaml/composer.pyc in get_single_node(self)

34 document = None 35 if not self.check_event(StreamEndEvent?):

---> 36 document = self.compose_document()

37 38 # Ensure that the stream contains no more documents.

/usr/lib/python2.6/dist-packages/yaml/composer.pyc in compose_document(self)

53 54 # Compose the root node.

---> 55 node = self.compose_node(None, None)

56 57 # Drop the DOCUMENT-END event.

/usr/lib/python2.6/dist-packages/yaml/composer.pyc in compose_node(self, parent, index)

82 node = self.compose_sequence_node(anchor) 83 elif self.check_event(MappingStartEvent?):

---> 84 node = self.compose_mapping_node(anchor)

85 self.ascend_resolver() 86 return node

/usr/lib/python2.6/dist-packages/yaml/composer.pyc in compose_mapping_node(self, anchor)

125 if anchor is not None: 126 self.anchors[anchor] = node

--> 127 while not self.check_event(MappingEndEvent?):

128 #key_event = self.peek_event()

129 item_key = self.compose_node(node, None)

/usr/lib/python2.6/dist-packages/yaml/parser.pyc in check_event(self, *choices)

91 if self.current_event is None: 92 if self.state:

---> 93 self.current_event = self.state()

94 if self.current_event is not None: 95 if not choices:

/usr/lib/python2.6/dist-packages/yaml/parser.pyc in parse_block_mapping_first_key(self)

418 token = self.get_token() 419 self.marks.append(token.start_mark)

--> 420 return self.parse_block_mapping_key()

421 422 def parse_block_mapping_key(self):

/usr/lib/python2.6/dist-packages/yaml/parser.pyc in parse_block_mapping_key(self)

432 token = self.peek_token() 433 raise ParserError?("while parsing a block mapping", self.marks[-1],

--> 434 "expected <block end>, but found %r" % token.id, token.start_mark)

435 token = self.get_token() 436 event = MappingEndEvent?(token.start_mark, token.end_mark)

ParserError?: while parsing a block mapping expected <block end>, but found ':'

in "<string>", line 1, column 1:

:

Best regards

Samuel Hym

Change History

comment:1 Changed 2 months ago by Richardmn

  • Summary changed from Problem with parsing ':' to Problem with parsing ':

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