# YAML Test Matrix

--- &test-DK95:06
  Title: Tabs that look like indentation
  Tags: [ indent, whitespace ]

YAML

foo:
  a: 1
  	b: 2

Expected Events

+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1

Expected JSON

{
"bar": 2,
"foo": 1
}

cpp-rapidyaml-event

 invalid_incorrect
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1
=VAL :b
=VAL :2
-MAP
-MAP
-DOC
-STR

hs-reference-yeast

 invalid_incorrect
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 +PAIR|
   1    0    0    0 +NODE|
   1    0    0    0 +VAL |
   1    0    0    0 =TEXT|foo
   1    3    3    3 -VAL |
   1    3    3    3 -NODE|
   1    3    3    3 =SYNX|:
   1    4    4    4 +NODE|
   1    4    4    4 =EOL |\x0a
   2    0    5    5 +MAP |
   2    0    5    5 =DENT|..
   2    2    7    7 +PAIR|
   2    2    7    7 +NODE|
   2    2    7    7 +VAL |
   2    2    7    7 =TEXT|a
   2    3    8    8 -VAL |
   2    3    8    8 -NODE|
   2    3    8    8 =SYNX|:
   2    4    9    9 =WSPC|.
   2    5   10   10 +NODE|
   2    5   10   10 +VAL |
   2    5   10   10 =TEXT|1
   2    6   11   11 -VAL |
   2    6   11   11 -NODE|
   2    6   11   11 =EOL |\x0a
   3    0   12   12 -PAIR|
   3    0   12   12 -MAP |
   3    0   12   12 -NODE|
   3    0   12   12 -PAIR|
   3    0   12   12 -MAP |
   3    0   12   12 -NODE|
   3    0   12   12 -DOC |
   3    0   12   12 =ERR |Unexpected.'.'

nim-nimyaml-event

 invalid_incorrect
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1
=VAL :b
=VAL :2
-MAP
-MAP
-DOC
-STR

perl-syck-json

 invalid_incorrect
{
   "foo" : {
      "a" : 1,
      "b" : 2
   }
}

perl-syck-perl

 invalid_incorrect
{
  'foo' => {
             'a' => 1,
             'b' => 2
           }
}

c-libfyaml-event

 invalid_correct
stdin:2:6: error: invalid multiline plain key
  a: 1
     ^
        b: 2
~~~~~~~~~
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a

c-libfyaml-json

 invalid_correct
stdin:2:6: error: invalid multiline plain key
  a: 1
     ^
        b: 2
~~~~~~~~~

c-libyaml-event

 invalid_correct
Parse error: found a tab character that violates indentation
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a

cpp-yamlcpp-event

 invalid_correct
Exception:
yaml-cpp: error at line 3, column 3: illegal tab when looking for indentation
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 2, Col: 6, Idx: 10) - (Line: 3, Col: 3, Idx: 14): While scanning a plain scalar, found a tab character that violate indentation.
   at YamlDotNet.Core.Scanner.ScanPlainScalar(Boolean& isMultiline)
   at YamlDotNet.Core.Scanner.FetchPlainScalar()
   at YamlDotNet.Core.Scanner.FetchNextToken()
   at YamlDotNet.Core.Scanner.FetchMoreTokens()
   at YamlDotNet.Core.Scanner.MoveNextWithoutConsuming()
   at YamlDotNet.Core.Parser.GetCurrentToken()
   at YamlDotNet.Core.Parser.ParseBlockMappingValue()
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at YamlDotNet.RepresentationModel.LibYamlEventStream.WriteTo(TextWriter textWriter)
   at Program.Main(String[] commandLineArguments)
Aborted (core dumped)
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 2, Col: 6, Idx: 10) - (Line: 3, Col: 3, Idx: 14): While scanning a plain scalar, found a tab character that violate indentation.
   at YamlDotNet.Core.Scanner.ScanPlainScalar(Boolean& isMultiline)
   at YamlDotNet.Core.Scanner.FetchPlainScalar()
   at YamlDotNet.Core.Scanner.FetchNextToken()
   at YamlDotNet.Core.Scanner.FetchMoreTokens()
   at YamlDotNet.Core.Scanner.MoveNextWithoutConsuming()
   at YamlDotNet.Core.Parser.GetCurrentToken()
   at YamlDotNet.Core.Parser.ParseBlockMappingValue()
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at YamlDotNet.Core.ParserExtensions.TryConsume[T](IParser parser, T& event)
   at YamlDotNet.Serialization.NodeDeserializers.ScalarNodeDeserializer.YamlDotNet.Serialization.INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func`3 nestedObjectDeserializer, Object& value)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.AliasValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.<>c__DisplayClass3_0.<DeserializeValue>b__0(IParser r, Type t)
   at YamlDotNet.Serialization.NodeDeserializers.DictionaryNodeDeserializer.DeserializeHelper(Type tKey, Type tValue, IParser parser, Func`3 nestedObjectDeserializer, IDictionary result)
   at YamlDotNet.Serialization.NodeDeserializers.DictionaryNodeDeserializer.YamlDotNet.Serialization.INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func`3 nestedObjectDeserializer, Object& value)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.AliasValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.<>c__DisplayClass3_0.<DeserializeValue>b__0(IParser r, Type t)
   at YamlDotNet.Serialization.NodeDeserializers.DictionaryNodeDeserializer.DeserializeHelper(Type tKey, Type tValue, IParser parser, Func`3 nestedObjectDeserializer, IDictionary result)
   at YamlDotNet.Serialization.NodeDeserializers.DictionaryNodeDeserializer.YamlDotNet.Serialization.INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func`3 nestedObjectDeserializer, Object& value)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.AliasValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.Deserializer.Deserialize(IParser parser, Type type)
   at YamlDotNet.Serialization.Deserializer.Deserialize(TextReader input, Type type)
   at YamlDotNet.Serialization.Deserializer.Deserialize(TextReader input)
   at Program.Main(String[] commandLineArguments)
Aborted (core dumped)

go-yaml-json

 invalid_correct
yaml: line 3: found a tab character that violates indentation

hs-hsyaml-event

 invalid_correct
Parsing error near byte offset Pos {posByteOffset = 12, posCharOffset = 12, posLine = 3, posColumn = 0} (Unexpected ' ')
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1
-MAP
-MAP
-DOC

hs-hsyaml-json

 invalid_correct
hsyaml-parser: user error (Unexpected ' ')

java-snakeengine-event

 invalid_correct
Exception in thread "main" while parsing a block mapping
 in reader, line 2, column 3:
      a: 1
      ^
expected <block end>, but found '<block mapping start>'
 in reader, line 3, column 4:
      	b: 2
       ^

	at org.snakeyaml.engine.v2.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:689)
	at org.snakeyaml.engine.v2.parser.ParserImpl.lambda$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

 invalid_correct
Exception in thread "main" while scanning for the next token
found character '\t(TAB)' that cannot start any token. (Do not use \t(TAB) for indentation)
 in 'reader', line 3, column 3:
      	b: 2
      ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:461)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:251)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:642)
	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.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

 invalid_correct
Exception in thread "main" while scanning for the next token
found character '\t(TAB)' that cannot start any token. (Do not use \t(TAB) for indentation)
 in 'reader', line 3, column 3:
      	b: 2
      ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:461)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:251)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:642)
	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

 invalid_correct
Exception in thread "main" while scanning for the next token
found character '\t(TAB)' that cannot start any token. (Do not use \t(TAB) for indentation)
 in 'reader', line 3, column 3:
      	b: 2
      ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:461)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:251)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:642)
	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.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

 invalid_correct
/node/node_modules/js-yaml/lib/loader.js:187
  throw generateError(state, message);
  ^
YAMLException: tab characters must not be used in indentation (3:3)

 1 | foo:
 2 |   a: 1
 3 |   →b: 2
-------^
    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 readBlockMapping (/node/node_modules/js-yaml/lib/loader.js:1062:7)
    at composeNode (/node/node_modules/js-yaml/lib/loader.js:1441:12)
    at readBlockMapping (/node/node_modules/js-yaml/lib/loader.js:1164:11)
    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)

js-yaml-event

 invalid_correct
Tabs are not allowed as indentation at line 3, column 3:

  a: 1
  	b: 2
  ^
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1

js-yaml-json

 invalid_correct
/yaml/bin/js-yaml-json:8
  if (doc.errors.length !== 0) throw doc.errors[0]
                               ^

YAMLParseError: Tabs are not allowed as indentation at line 3, column 3:

  a: 1
  	b: 2
  ^

    at Composer.onError (/node/node_modules/yaml/dist/compose/composer.js:71:34)
    at Object.resolveProps (/node/node_modules/yaml/dist/compose/resolve-props.js:33:21)
    at Object.resolveBlockMap (/node/node_modules/yaml/dist/compose/resolve-block-map.js:20:39)
    at Object.composeCollection (/node/node_modules/yaml/dist/compose/compose-collection.js:13:36)
    at composeNode (/node/node_modules/yaml/dist/compose/compose-node.js:30:38)
    at Object.resolveBlockMap (/node/node_modules/yaml/dist/compose/resolve-block-map.js:79:19)
    at Object.composeCollection (/node/node_modules/yaml/dist/compose/compose-collection.js:13:36)
    at Object.composeNode (/node/node_modules/yaml/dist/compose/compose-node.js:30:38)
    at Object.composeDoc (/node/node_modules/yaml/dist/compose/compose-doc.js:32:23)
    at Composer.next (/node/node_modules/yaml/dist/compose/composer.js:152:40)

lua-lyaml-json

 invalid_correct
luajit: 2:3: found a tab character that violate indentation
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:378: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:378: 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 0x556098b8af97

perl-pp-event

 invalid_correct
Line      : 3
Column    : 3
Expected  : ALIAS COLON DOC_END DOC_START EOL PLAIN QUESTION QUOTED
Got       : WS
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 392
YAML      : "\tb: 2\n"
  at /yaml/bin/perl-pp-event line 25.
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1

perl-pp-json

 invalid_correct
Line      : 3
Column    : 3
Expected  : ALIAS COLON DOC_END DOC_START EOL PLAIN QUESTION QUOTED
Got       : WS
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 392
YAML      : "\tb: 2\n"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pp-perl

 invalid_correct
Line      : 3
Column    : 3
Expected  : ALIAS COLON DOC_END DOC_START EOL PLAIN QUESTION QUOTED
Got       : WS
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 392
YAML      : "\tb: 2\n"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pplibyaml-json

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    found a tab character that violates indentation

was found at , line: 3, column: 3
while scanning a plain scalar at line: 2, column: 6

perl-pplibyaml-perl

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    found a tab character that violates indentation

was found at , line: 3, column: 3
while scanning a plain scalar at line: 2, column: 6

perl-refparser-event

 invalid_correct
Parser finished before end of input at /perl5/lib/perl5/YAML/Parser.pm line 4056, <> line 1.

perl-tiny-json

 invalid_correct
YAML::Tiny found bad indenting in line '  	b: 2' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 invalid_correct
YAML::Tiny found bad indenting in line '  	b: 2' at /yaml/bin/perl-tiny-perl line 15.

perl-xs-json

 invalid_correct
YAML::XS::Load Error: The problem:

    found a tab character that violates indentation

was found at document: 1, line: 3, column: 3
while scanning a plain scalar at line: 2, column: 6

perl-xs-perl

 invalid_correct
YAML::XS::Load Error: The problem:

    found a tab character that violates indentation

was found at document: 1, line: 3, column: 3
while scanning a plain scalar at line: 2, column: 6

perl-yaml-json

 invalid_correct
Use of uninitialized value in numeric gt (>) at /perl5/lib/perl5/YAML/Loader.pm line 801, <> line 1.
Use of uninitialized value in numeric gt (>) at /perl5/lib/perl5/YAML/Loader.pm line 802, <> line 1.
Use of uninitialized value in numeric ne (!=) at /perl5/lib/perl5/YAML/Loader.pm line 804, <> line 1.
Use of uninitialized value in subtraction (-) at /perl5/lib/perl5/YAML/Loader.pm line 809, <> line 1.
Use of uninitialized value in numeric eq (==) at /perl5/lib/perl5/YAML/Loader.pm line 373, <> line 1.
Use of uninitialized value in numeric eq (==) at /perl5/lib/perl5/YAML/Loader.pm line 373, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 337, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 344, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 348, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 443, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 443, <> line 1.
YAML Error: Invalid element in map
   Code: YAML_LOAD_ERR_BAD_MAP_ELEMENT
   Line: 3
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 360.

perl-yaml-perl

 invalid_correct
Use of uninitialized value in numeric gt (>) at /perl5/lib/perl5/YAML/Loader.pm line 801, <> line 1.
Use of uninitialized value in numeric gt (>) at /perl5/lib/perl5/YAML/Loader.pm line 802, <> line 1.
Use of uninitialized value in numeric ne (!=) at /perl5/lib/perl5/YAML/Loader.pm line 804, <> line 1.
Use of uninitialized value in subtraction (-) at /perl5/lib/perl5/YAML/Loader.pm line 809, <> line 1.
Use of uninitialized value in numeric eq (==) at /perl5/lib/perl5/YAML/Loader.pm line 373, <> line 1.
Use of uninitialized value in numeric eq (==) at /perl5/lib/perl5/YAML/Loader.pm line 373, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 337, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 344, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 348, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 443, <> line 1.
Use of uninitialized value in substitution (s///) at /perl5/lib/perl5/YAML/Loader.pm line 443, <> line 1.
YAML Error: Invalid element in map
   Code: YAML_LOAD_ERR_BAD_MAP_ELEMENT
   Line: 3
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 360.

py-pyyaml-event

 invalid_correct
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 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 260, in fetch_more_tokens
    self.get_mark())
yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<unicode string>", line 3, column 3:
      	b: 2
      ^
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1

py-pyyaml-json

 invalid_correct
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 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  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 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 260, in fetch_more_tokens
    self.get_mark())
yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<unicode string>", line 3, column 3:
      	b: 2
      ^

py-pyyaml-py

 invalid_correct
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 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  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 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 260, in fetch_more_tokens
    self.get_mark())
yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<unicode string>", line 3, column 3:
      	b: 2
      ^

py-ruamel-event

 invalid_correct
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 598, in parse_block_mapping_key
    if self.scanner.check_token(KeyToken):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 175, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 327, in fetch_more_tokens
    self.reader.get_mark(),
ruamel.yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<unicode string>", line 3, column 3:
      	b: 2
      ^ (line: 3)
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a
=VAL :1

py-ruamel-json

 invalid_correct
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 223, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  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 598, in parse_block_mapping_key
    if self.scanner.check_token(KeyToken):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 175, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 327, in fetch_more_tokens
    self.reader.get_mark(),
ruamel.yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<unicode string>", line 3, column 3:
      	b: 2
      ^ (line: 3)

py-ruamel-py

 invalid_correct
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 223, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  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 598, in parse_block_mapping_key
    if self.scanner.check_token(KeyToken):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 175, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 327, in fetch_more_tokens
    self.reader.get_mark(),
ruamel.yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<unicode string>", line 3, column 3:
      	b: 2
      ^ (line: 3)

raku-yamlish-json

 invalid_correct
Couldn't parse YAML: Problem with indentatiton in map at 3:3.
  in sub load-yamls at /raku/sources/44795C7AB0F35700F4CA9C3E2CC5C924EE4C608F (YAMLish) line 956
  in block <unit> at /yaml/bin/raku-yamlish-json line 6

raku-yamlish-raku

 invalid_correct
Couldn't parse YAML: Problem with indentatiton in map at 3:3.
  in sub load-yamls at /raku/sources/44795C7AB0F35700F4CA9C3E2CC5C924EE4C608F (YAMLish) line 956
  in block <unit> at /yaml/bin/raku-yamlish-raku line 6

ruby-psych-json

 invalid_correct
/ruby/gems/psych/lib/psych.rb:459:in `parse': (<unknown>): found a tab character that violate indentation while scanning a plain scalar at line 2 column 6 (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

 invalid_correct
Error: ScanError { mark: Marker { index: 10, line: 2, col: 5 }, info: "while scanning a plain scalar, found a tab" }
+STR
+DOC
+MAP
=VAL :foo
+MAP
=VAL :a