# YAML Test Matrix

--- &test-4MUZ:00
  Title: Flow mapping colon on line after key
  Tags: [ flow, mapping ]

YAML

{"foo"
: "bar"}

Expected Events

+STR
+DOC
+MAP {}
=VAL "foo
=VAL "bar
-MAP
-DOC
-STR

Expected JSON

{
"foo": "bar"
}

c-libfyaml-event

 ok

cpp-rapidyaml-event

 ok

dotnet-yamldotnet-event

 ok

hs-hsyaml-event

 ok

js-yaml-event

 ok

nim-nimyaml-event

 ok

perl-pp-event

 ok

perl-refparser-event

 ok

c-libfyaml-json

 json_ok

dotnet-yamldotnet-json

 json_ok

hs-hsyaml-json

 json_ok

js-yaml-json

 json_ok

perl-pp-json

 json_ok

perl-syck-json

 json_ok

raku-yamlish-json

 json_ok

c-libyaml-event

 error
+STR
+DOC
+MAP {}
=VAL "foo
=VAL :
Parse error: did not find expected ',' or '}'

cpp-yamlcpp-event

 error
+STR
+DOC
+MAP {}
=VAL :
=VAL :
Exception:
yaml-cpp: error at line 1, column 2: end of map flow not found

go-yaml-json

 error
yaml: line 1: did not find expected ',' or '}'

java-snakeengine-event

 error
Exception in thread "main" while parsing a flow mapping
 in reader, line 1, column 1:
    {"foo"
    ^
expected ',' or '}', but got :
 in reader, line 2, column 1:
    : "bar"}
    ^

	at org.snakeyaml.engine.v2.parser.ParserImpl$ParseFlowMappingKey.produce(ParserImpl.java:925)
	at org.snakeyaml.engine.v2.parser.ParserImpl.lambda$produce$0(ParserImpl.java:185)
	at java.util.Optional.ifPresent(Optional.java:159)
	at org.snakeyaml.engine.v2.parser.ParserImpl.produce(ParserImpl.java:185)
	at org.snakeyaml.engine.v2.parser.ParserImpl.hasNext(ParserImpl.java:210)
	at org.yaml.editor.SnakeEngine2Events.yamlToEvents(SnakeEngine2Events.java:15)
	at org.yaml.editor.SnakeEngine2Events.main(SnakeEngine2Events.java:23)

java-snakeengine-json

 error
Exception in thread "main" while parsing a flow mapping
 in 'reader', line 1, column 1:
    {"foo"
    ^
expected ',' or '}', but got :
 in 'reader', line 2, column 1:
    : "bar"}
    ^

	at org.yaml.snakeyaml.parser.ParserImpl$ParseFlowMappingKey.produce(ParserImpl.java:891)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:166)
	at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:59)
	at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:45)
	at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:140)
	at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:119)
	at org.yaml.snakeyaml.composer.Composer.composeScalarNode(Composer.java:217)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:187)
	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:317)
	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:308)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:289)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:191)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:116)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:135)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:514)
	at org.yaml.editor.Snake2Json.yamlToJson(Snake2Json.java:20)
	at org.yaml.editor.Snake2Json.main(Snake2Json.java:27)

java-snakeyaml-event

 error
Exception in thread "main" while parsing a flow mapping
 in 'reader', line 1, column 1:
    {"foo"
    ^
expected ',' or '}', but got :
 in 'reader', line 2, column 1:
    : "bar"}
    ^

	at org.yaml.snakeyaml.parser.ParserImpl$ParseFlowMappingKey.produce(ParserImpl.java:891)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:166)
	at org.yaml.snakeyaml.Yaml$3.hasNext(Yaml.java:677)
	at org.yaml.editor.Snake2Events.yamlToEvents(Snake2Events.java:134)
	at org.yaml.editor.Snake2Events.main(Snake2Events.java:142)

java-snakeyaml-json

 error
Exception in thread "main" while parsing a flow mapping
 in 'reader', line 1, column 1:
    {"foo"
    ^
expected ',' or '}', but got :
 in 'reader', line 2, column 1:
    : "bar"}
    ^

	at org.yaml.snakeyaml.parser.ParserImpl$ParseFlowMappingKey.produce(ParserImpl.java:891)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:166)
	at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:59)
	at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:45)
	at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:140)
	at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:119)
	at org.yaml.snakeyaml.composer.Composer.composeScalarNode(Composer.java:217)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:187)
	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:317)
	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:308)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:289)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:191)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:116)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:135)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:514)
	at org.yaml.editor.Snake2Json.yamlToJson(Snake2Json.java:20)
	at org.yaml.editor.Snake2Json.main(Snake2Json.java:27)

js-jsyaml-json

 error
/node/node_modules/js-yaml/lib/loader.js:187
  throw generateError(state, message);
  ^
YAMLException: missed comma between flow collection entries (2:1)

 1 | {"foo"
 2 | : "bar"}
-----^
    at generateError (/node/node_modules/js-yaml/lib/loader.js:183:10)
    at throwError (/node/node_modules/js-yaml/lib/loader.js:187:9)
    at readFlowCollection (/node/node_modules/js-yaml/lib/loader.js:758:7)
    at composeNode (/node/node_modules/js-yaml/lib/loader.js:1442:11)
    at readBlockMapping (/node/node_modules/js-yaml/lib/loader.js:1104:12)
    at composeNode (/node/node_modules/js-yaml/lib/loader.js:1441:12)
    at readDocument (/node/node_modules/js-yaml/lib/loader.js:1625:3)
    at loadDocuments (/node/node_modules/js-yaml/lib/loader.js:1688:5)
    at Object.loadAll (/node/node_modules/js-yaml/lib/loader.js:1701:19)
    at Object.<anonymous> (/yaml/bin/js-jsyaml-json:7:13)

lua-lyaml-json

 error
luajit: 2:1: did not find expected ',' or '}'
stack traceback:
	[C]: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:306: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:325: in function 'parse'
	/usr/local/share/lua/5.1/lyaml/init.lua:443: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:340: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:497: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x55ba5decdf97

perl-pplibyaml-json

 error
YAML::PP::LibYAML Error: The problem:

    did not find expected ',' or '}'

was found at , line: 2, column: 1
while parsing a flow mapping at line: 1, column: 1

perl-pplibyaml-perl

 error
YAML::PP::LibYAML Error: The problem:

    did not find expected ',' or '}'

was found at , line: 2, column: 1
while parsing a flow mapping at line: 1, column: 1

perl-xs-json

 error
YAML::XS::Load Error: The problem:

    did not find expected ',' or '}'

was found at document: 1, line: 2, column: 1
while parsing a flow mapping at line: 1, column: 1

perl-xs-perl

 error
YAML::XS::Load Error: The problem:

    did not find expected ',' or '}'

was found at document: 1, line: 2, column: 1
while parsing a flow mapping at line: 1, column: 1

perl-yaml-json

 error
YAML Error: Expected separator '---'
   Code: YAML_PARSE_ERR_NO_SEPARATOR
   Line: 1
   Document: 2
 at /perl5/lib/perl5/YAML/Loader.pm line 88.

perl-yaml-perl

 error
YAML Error: Expected separator '---'
   Code: YAML_PARSE_ERR_NO_SEPARATOR
   Line: 1
   Document: 2
 at /perl5/lib/perl5/YAML/Loader.pm line 88.

py-pyyaml-event

 error
+STR
+DOC
+MAP {}
=VAL "foo
=VAL :
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-event", line 7, in <module>
    for event in yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 46, in parse
    while loader.check_event():
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 550, in parse_flow_mapping_key
    "expected ',' or '}', but got %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a flow mapping
  in "<unicode string>", line 1, column 1:
    {"foo"
    ^
expected ',' or '}', but got ':'
  in "<unicode string>", line 2, column 1:
    : "bar"}
    ^

py-pyyaml-json

 error
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-json", line 19, in <module>
    for doc in yaml.load_all(sys.stdin.read(), Loader=yaml.FullLoader):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 93, in load_all
    yield loader.get_data()
  File "/python/lib/python3.7/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 550, in parse_flow_mapping_key
    "expected ',' or '}', but got %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a flow mapping
  in "<unicode string>", line 1, column 1:
    {"foo"
    ^
expected ',' or '}', but got ':'
  in "<unicode string>", line 2, column 1:
    : "bar"}
    ^

py-pyyaml-py

 error
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-py", line 36, in <module>
    for doc in yaml.load_all(sys.stdin.read(), Loader=yaml.FullLoader):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 93, in load_all
    yield loader.get_data()
  File "/python/lib/python3.7/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 550, in parse_flow_mapping_key
    "expected ',' or '}', but got %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a flow mapping
  in "<unicode string>", line 1, column 1:
    {"foo"
    ^
expected ',' or '}', but got ':'
  in "<unicode string>", line 2, column 1:
    : "bar"}
    ^

py-ruamel-event

 error
+STR
+DOC
+MAP {}
=VAL "foo
=VAL :
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-event", line 7, in <module>
    for event in ruamel.yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 1024, in parse
    while loader._parser.check_event():
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 146, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 757, in parse_flow_mapping_key
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a flow mapping
  in "<unicode string>", line 1, column 1:
    {"foo"
    ^ (line: 1)
expected ',' or '}', but got ':'
  in "<unicode string>", line 2, column 1:
    : "bar"}
    ^ (line: 2)

py-ruamel-json

 error
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-json", line 19, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 1097, in load_all
    yield loader._constructor.get_data()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/constructor.py", line 114, in get_data
    return self.construct_document(self.composer.get_node())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 66, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 99, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 143, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 216, in compose_mapping_node
    while not self.parser.check_event(MappingEndEvent):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 146, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 757, in parse_flow_mapping_key
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a flow mapping
  in "<unicode string>", line 1, column 1:
    {"foo"
    ^ (line: 1)
expected ',' or '}', but got ':'
  in "<unicode string>", line 2, column 1:
    : "bar"}
    ^ (line: 2)

py-ruamel-py

 error
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-py", line 36, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 1097, in load_all
    yield loader._constructor.get_data()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/constructor.py", line 114, in get_data
    return self.construct_document(self.composer.get_node())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 66, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 99, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 143, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 216, in compose_mapping_node
    while not self.parser.check_event(MappingEndEvent):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 146, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 757, in parse_flow_mapping_key
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a flow mapping
  in "<unicode string>", line 1, column 1:
    {"foo"
    ^ (line: 1)
expected ',' or '}', but got ':'
  in "<unicode string>", line 2, column 1:
    : "bar"}
    ^ (line: 2)

ruby-psych-json

 error
/ruby/gems/psych/lib/psych.rb:459:in `parse': (<unknown>): did not find expected ',' or '}' while parsing a flow mapping at line 1 column 1 (Psych::SyntaxError)
	from /ruby/gems/psych/lib/psych.rb:459:in `parse_stream'
	from /ruby/gems/psych/lib/psych.rb:565:in `load_stream'
	from /yaml/bin/ruby-psych-json:6:in `<main>'

rust-yamlrust-event

 error
+STR
+DOC
+MAP
=VAL "foo
=VAL :
Error: ScanError { mark: Marker { index: 7, line: 2, col: 0 }, info: "while parsing a flow mapping, did not find expected ',' or '}'" }

hs-reference-yeast

 na
Line  Col Char Byte Token|Content
   1    0    0    0 +DOC |
   1    0    0    0 +NODE|
   1    0    0    0 +MAP |
   1    0    0    0 =SYNX|{
   1    1    1    1 +PAIR|
   1    1    1    1 +NODE|
   1    1    1    1 +VAL |
   1    1    1    1 =SYNX|"
   1    2    2    2 =TEXT|foo
   1    5    5    5 =SYNX|"
   1    6    6    6 -VAL |
   1    6    6    6 -NODE|
   1    6    6    6 =EOL |\x0a
   2    0    7    7 =SYNX|:
   2    1    8    8 =WSPC|.
   2    2    9    9 +NODE|
   2    2    9    9 +VAL |
   2    2    9    9 =SYNX|"
   2    3   10   10 =TEXT|bar
   2    6   13   13 =SYNX|"
   2    7   14   14 -VAL |
   2    7   14   14 -NODE|
   2    7   14   14 -PAIR|
   2    7   14   14 =SYNX|}
   2    8   15   15 -MAP |
   2    8   15   15 -NODE|
   2    8   15   15 =EOL |\x0a
   3    0   16   16 -DOC |

perl-pp-perl

 na
{
  'foo' => 'bar'
}

perl-syck-perl

 na
{
  'foo' => 'bar'
}

raku-yamlish-raku

 na
{
  foo => "bar".Str,
}

perl-tiny-json

 ni
YAML::Tiny failed to classify line '{"foo"' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 ni
YAML::Tiny failed to classify line '{"foo"' at /yaml/bin/perl-tiny-perl line 15.