# YAML Test Matrix

--- &test-HRE5
  Title: Double quoted scalar with escaped single quote
  Tags: [ double, error, single ]

YAML

---
double: "quoted \' scalar"

Expected Events

+STR
+DOC ---
+MAP
=VAL :double

Expected JSON



cpp-rapidyaml-event

 invalid_incorrect
+STR
+DOC ---
+MAP
=VAL :double
=VAL 'quoted ' scalar
-MAP
-DOC
-STR

cpp-yamlcpp-event

 invalid_incorrect
+STR
+DOC
+MAP
=VAL :double
=VAL :quoted ' scalar
-MAP
-DOC
-STR

go-yaml-json

 invalid_incorrect
{"double":"quoted ' scalar"}

hs-reference-yeast

 invalid_incorrect
Line  Col Char Byte Token|Content
   1    0    0    0 +DOC |
   1    0    0    0 =HEAD|---
   1    3    3    3 +NODE|
   1    3    3    3 =EOL |\x0a
   2    0    4    4 +MAP |
   2    0    4    4 +PAIR|
   2    0    4    4 +NODE|
   2    0    4    4 +VAL |
   2    0    4    4 =TEXT|double
   2    6   10   10 -VAL |
   2    6   10   10 -NODE|
   2    6   10   10 =SYNX|:
   2    7   11   11 =WSPC|.
   2    8   12   12 +NODE|
   2    8   12   12 +VAL |
   2    8   12   12 =SYNX|"
   2    9   13   13 =TEXT|quoted.
   2   16   20   20 -VAL |
   2   16   20   20 -NODE|
   2   16   20   20 =ERR |Unexpected.'\x5c'
   2   16   20   20 =REST|\x5c'.scalar"
   2   26   30   30 =REST|\x0a
   3    0   31   31 -PAIR|
   3    0   31   31 -MAP |
   3    0   31   31 -NODE|
   3    0   31   31 -DOC |

perl-syck-json

 invalid_incorrect
{
   "double" : "quoted \\' scalar"
}

perl-syck-perl

 invalid_incorrect
{
  'double' => 'quoted \\\' scalar'
}

perl-tiny-json

 invalid_incorrect
{
   "double" : "quoted \\' scalar"
}

perl-tiny-perl

 invalid_incorrect
{
  'double' => 'quoted \\\' scalar'
}

perl-yaml-json

 invalid_incorrect
{
   "double" : "quoted \\' scalar"
}

perl-yaml-perl

 invalid_incorrect
{
  'double' => 'quoted \\\' scalar'
}

rust-yamlrust-event

 invalid_incorrect
+STR
+DOC
+MAP
=VAL :double
=VAL "quoted ' scalar
-MAP
-DOC
-STR

c-libfyaml-event

 invalid_correct
stdin:2:17: error: invalid escape '\'' in double-quoted string
double: "quoted \' scalar"
                ^~
+STR
+DOC ---
+MAP
=VAL :double

c-libfyaml-json

 invalid_correct
stdin:2:17: error: invalid escape '\'' in double-quoted string
double: "quoted \' scalar"
                ^~

c-libyaml-event

 invalid_correct
Parse error: found unknown escape character
+STR
+DOC ---
+MAP
=VAL :double

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 2, Col: 9, Idx: 12) - (Line: 2, Col: 17, Idx: 20): While scanning a quoted scalar, found unknown escape character.
   at YamlDotNet.Core.Scanner.ScanFlowScalar(Boolean isSingleQuoted)
   at YamlDotNet.Core.Scanner.FetchFlowScalar(Boolean isSingleQuoted)
   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 :double

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 2, Col: 9, Idx: 12) - (Line: 2, Col: 17, Idx: 20): While scanning a quoted scalar, found unknown escape character.
   at YamlDotNet.Core.Scanner.ScanFlowScalar(Boolean isSingleQuoted)
   at YamlDotNet.Core.Scanner.FetchFlowScalar(Boolean isSingleQuoted)
   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.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)

hs-hsyaml-event

 invalid_correct
Parsing error near byte offset Pos {posByteOffset = 20, posCharOffset = 20, posLine = 2, posColumn = 16} (Unexpected '\')
+STR
+DOC ---
+MAP
=VAL :double
=VAL "quoted 

hs-hsyaml-json

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

js-jsyaml-json

 invalid_correct
/node/node_modules/js-yaml/lib/loader.js:187
  throw generateError(state, message);
  ^
YAMLException: unknown escape sequence (2:18)

 1 | ---
 2 | double: "quoted \' scalar"
----------------------^
    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 readDoubleQuotedScalar (/node/node_modules/js-yaml/lib/loader.js:684:9)
    at composeNode (/node/node_modules/js-yaml/lib/loader.js:1447:13)
    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) {
  reason: 'unknown escape sequence',
  mark: {
    name: null,
    buffer: `---\ndouble: "quoted \\' scalar"\n`,
    position: 21,
    line: 1,
    column: 17,
    snippet: ` 1 | ---\n 2 | double: "quoted \\' scalar"\n----------------------^`
  }
}

Node.js v20.13.1

js-yaml-event

 invalid_correct
Invalid escape sequence \' at line 2, column 17:

double: "quoted \' scalar"
                ^
+STR
+DOC ---
+MAP
=VAL :double
=VAL "quoted \\' scalar
-MAP
-DOC
-STR

js-yaml-json

 invalid_correct
/yaml/bin/js-yaml-json:9
    if (doc.errors.length !== 0) throw doc.errors[0]
                                 ^

YAMLParseError: Invalid escape sequence \' at line 2, column 17:

double: "quoted \' scalar"
                ^

    at Composer.onError (/node/node_modules/yaml/dist/compose/composer.js:69:34)
    at _onError (/node/node_modules/yaml/dist/compose/resolve-flow-scalar.js:10:42)
    at doubleQuotedValue (/node/node_modules/yaml/dist/compose/resolve-flow-scalar.js:153:17)
    at Object.resolveFlowScalar (/node/node_modules/yaml/dist/compose/resolve-flow-scalar.js:22:21)
    at Object.composeScalar (/node/node_modules/yaml/dist/compose/compose-scalar.js:11:29)
    at composeNode (/node/node_modules/yaml/dist/compose/compose-node.js:24:34)
    at Object.resolveBlockMap (/node/node_modules/yaml/dist/compose/resolve-block-map.js:83:19)
    at resolveCollection (/node/node_modules/yaml/dist/compose/compose-collection.js:13:27)
    at Object.composeCollection (/node/node_modules/yaml/dist/compose/compose-collection.js:47:16)
    at Object.composeNode (/node/node_modules/yaml/dist/compose/compose-node.js:31:38) {
  code: 'BAD_DQ_ESCAPE',
  pos: [ 20, 21 ],
  linePos: [ { line: 2, col: 17 }, { line: 2, col: 18 } ]
}

Node.js v20.13.1

lua-lyaml-json

 invalid_correct
luajit: 2:1: found unknown escape character
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:497: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x556b1b704ed0

nim-nimyaml-event

 invalid_correct
/tmp/NimYAML-0.16.0/yaml/stream.nim(134) nimyaml_event
/tmp/NimYAML-0.16.0/yaml/stream.nim(106) next
Error: unhandled exception: Illegal character in escape sequence: "\'" [YamlStreamError]
+STR
+DOC ---
+MAP
=VAL :double

perl-pp-event

 invalid_correct
Line      : 2
Column    : 17
Message   : Invalid quoted <"> string
Where     : /perl5/lib/perl5/YAML/PP/Lexer.pm line 754
YAML      : "\\' scalar\""
  at /yaml/bin/perl-pp-event line 46.
+STR
+DOC ---
+MAP
=VAL :double

perl-pp-json

 invalid_correct
Line      : 2
Column    : 17
Message   : Invalid quoted <"> string
Where     : /perl5/lib/perl5/YAML/PP/Lexer.pm line 754
YAML      : "\\' scalar\""
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pp-perl

 invalid_correct
Line      : 2
Column    : 17
Message   : Invalid quoted <"> string
Where     : /perl5/lib/perl5/YAML/PP/Lexer.pm line 754
YAML      : "\\' scalar\""
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pplibyaml-json

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

    found unknown escape character

was found at , line: 2, column: 17
while parsing a quoted scalar at line: 2, column: 9

perl-pplibyaml-perl

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

    found unknown escape character

was found at , line: 2, column: 17
while parsing a quoted scalar at line: 2, column: 9

perl-refparser-event

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

perl-xs-json

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

    found unknown escape character

was found at document: 1, line: 2, column: 17
while parsing a quoted scalar at line: 2, column: 9

perl-xs-perl

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

    found unknown escape character

was found at document: 1, line: 2, column: 17
while parsing a quoted scalar at line: 2, column: 9

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/python3.12/site-packages/yaml/__init__.py", line 75, in parse
    while loader.check_event():
          ^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 449, in parse_block_mapping_value
    if not self.check_token(KeyToken, ValueToken, BlockEndToken):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 251, in fetch_more_tokens
    return self.fetch_double()
           ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 655, in fetch_double
    self.fetch_flow_scalar(style='"')
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 666, in fetch_flow_scalar
    self.tokens.append(self.scan_flow_scalar(style))
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1152, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1223, in scan_flow_scalar_non_spaces
    raise ScannerError("while scanning a double-quoted scalar", start_mark,
yaml.scanner.ScannerError: while scanning a double-quoted scalar
  in "<unicode string>", line 2, column 9:
    double: "quoted \' scalar"
            ^
found unknown escape character "'"
  in "<unicode string>", line 2, column 18:
    double: "quoted \' scalar"
                     ^
+STR
+DOC ---
+MAP
=VAL :double

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/python3.12/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
          ^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
                                   ^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 64, in compose_node
    if self.check_event(AliasEvent):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 449, in parse_block_mapping_value
    if not self.check_token(KeyToken, ValueToken, BlockEndToken):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 251, in fetch_more_tokens
    return self.fetch_double()
           ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 655, in fetch_double
    self.fetch_flow_scalar(style='"')
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 666, in fetch_flow_scalar
    self.tokens.append(self.scan_flow_scalar(style))
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1152, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1223, in scan_flow_scalar_non_spaces
    raise ScannerError("while scanning a double-quoted scalar", start_mark,
yaml.scanner.ScannerError: while scanning a double-quoted scalar
  in "<unicode string>", line 2, column 9:
    double: "quoted \' scalar"
            ^
found unknown escape character "'"
  in "<unicode string>", line 2, column 18:
    double: "quoted \' scalar"
                     ^

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/python3.12/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
          ^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
                                   ^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 64, in compose_node
    if self.check_event(AliasEvent):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 449, in parse_block_mapping_value
    if not self.check_token(KeyToken, ValueToken, BlockEndToken):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 251, in fetch_more_tokens
    return self.fetch_double()
           ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 655, in fetch_double
    self.fetch_flow_scalar(style='"')
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 666, in fetch_flow_scalar
    self.tokens.append(self.scan_flow_scalar(style))
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1152, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1223, in scan_flow_scalar_non_spaces
    raise ScannerError("while scanning a double-quoted scalar", start_mark,
yaml.scanner.ScannerError: while scanning a double-quoted scalar
  in "<unicode string>", line 2, column 9:
    double: "quoted \' scalar"
            ^
found unknown escape character "'"
  in "<unicode string>", line 2, column 18:
    double: "quoted \' scalar"
                     ^

py-ruamel-event

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-event", line 9, in <module>
    for event in yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.12/site-packages/ruamel/yaml/main.py", line 371, in parse
    while parser.check_event():
          ^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 631, in parse_block_mapping_value
    if self.scanner.check_token(ValueToken):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 170, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 306, in fetch_more_tokens
    return self.fetch_double()
           ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 697, in fetch_double
    self.fetch_flow_scalar(style='"')
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 705, in fetch_flow_scalar
    self.tokens.append(self.scan_flow_scalar(style))
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1356, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1428, in scan_flow_scalar_non_spaces
    raise ScannerError(
ruamel.yaml.scanner.ScannerError: while scanning a double-quoted scalar
  in "<unicode string>", line 2, column 9:
    double: "quoted \' scalar"
            ^ (line: 2)
found unknown escape character "'"
  in "<unicode string>", line 2, column 18:
    double: "quoted \' scalar"
                     ^ (line: 2)
+STR
+DOC ---
+MAP
=VAL :double

py-ruamel-json

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-json", line 21, in <module>
    for doc in yaml.load_all(sys.stdin.read()):
  File "/python/lib/python3.12/site-packages/ruamel/yaml/main.py", line 476, in load_all
    yield constructor.get_data()
          ^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/constructor.py", line 110, in get_data
    return self.construct_document(self.composer.get_node())
                                   ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 63, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 94, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 130, in compose_node
    node = self.compose_mapping_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 211, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 106, in compose_node
    if self.parser.check_event(AliasEvent):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 631, in parse_block_mapping_value
    if self.scanner.check_token(ValueToken):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 170, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 306, in fetch_more_tokens
    return self.fetch_double()
           ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 697, in fetch_double
    self.fetch_flow_scalar(style='"')
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 705, in fetch_flow_scalar
    self.tokens.append(self.scan_flow_scalar(style))
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1356, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1428, in scan_flow_scalar_non_spaces
    raise ScannerError(
ruamel.yaml.scanner.ScannerError: while scanning a double-quoted scalar
  in "<unicode string>", line 2, column 9:
    double: "quoted \' scalar"
            ^ (line: 2)
found unknown escape character "'"
  in "<unicode string>", line 2, column 18:
    double: "quoted \' scalar"
                     ^ (line: 2)

py-ruamel-py

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-py", line 38, in <module>
    for doc in yaml.load_all(sys.stdin.read()):
  File "/python/lib/python3.12/site-packages/ruamel/yaml/main.py", line 476, in load_all
    yield constructor.get_data()
          ^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/constructor.py", line 110, in get_data
    return self.construct_document(self.composer.get_node())
                                   ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 63, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 94, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 130, in compose_node
    node = self.compose_mapping_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 211, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 106, in compose_node
    if self.parser.check_event(AliasEvent):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 631, in parse_block_mapping_value
    if self.scanner.check_token(ValueToken):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 170, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 306, in fetch_more_tokens
    return self.fetch_double()
           ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 697, in fetch_double
    self.fetch_flow_scalar(style='"')
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 705, in fetch_flow_scalar
    self.tokens.append(self.scan_flow_scalar(style))
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1356, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1428, in scan_flow_scalar_non_spaces
    raise ScannerError(
ruamel.yaml.scanner.ScannerError: while scanning a double-quoted scalar
  in "<unicode string>", line 2, column 9:
    double: "quoted \' scalar"
            ^ (line: 2)
found unknown escape character "'"
  in "<unicode string>", line 2, column 18:
    double: "quoted \' scalar"
                     ^ (line: 2)

ruby-psych-json

 invalid_correct
/ruby/gems/psych/lib/psych.rb:458:in `parse': (<unknown>): found unknown escape character while parsing a quoted scalar at line 2 column 9 (Psych::SyntaxError)
	from /ruby/gems/psych/lib/psych.rb:458:in `parse_stream'
	from /ruby/gems/psych/lib/psych.rb:632:in `load_stream'
	from /yaml/bin/ruby-psych-json:6:in `<main>'