# YAML Test Matrix

--- &test-9MQT:01
  Title: Scalar doc with '...' in content
  Tags: [ double, scalar ]

YAML

--- "a
... x
b"

Expected Events

+STR
+DOC ---

Expected JSON

"a ...x b"

cpp-rapidyaml-event

 invalid_incorrect
+STR
+DOC ---
=VAL 'a ... x b
-DOC
-STR

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 +VAL |
   1    3    3    3 -VAL |
   1    3    3    3 -NODE|
   1    3    3    3 =REST|."a
   1    6    6    6 =REST|\x0a
   2    0    7    7 -DOC |
   2    0    7    7 =ERR |Unexpected.'.'

perl-syck-json

 invalid_incorrect
"a ... x b"

perl-syck-perl

 invalid_incorrect
'a ... x b'

c-libfyaml-event

 invalid_correct
stdin:2:1: error: invalid document-end marker in double-quoted scalar
... x
^~~
+STR
+DOC ---

c-libfyaml-json

 invalid_correct
stdin:2:1: error: invalid document-end marker in double-quoted scalar
... x
^~~

c-libyaml-event

 invalid_correct
Parse error: found unexpected document indicator
+STR
+DOC ---

cpp-yamlcpp-event

 invalid_correct
Exception:
yaml-cpp: error at line 2, column 1: illegal document indicator in scalar
+STR
+DOC

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 1, Col: 5, Idx: 4) - (Line: 2, Col: 1, Idx: 7): While scanning a quoted scalar, found unexpected document indicator.
   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.ParseDocumentContent()
   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 ---

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 1, Col: 5, Idx: 4) - (Line: 2, Col: 1, Idx: 7): While scanning a quoted scalar, found unexpected document indicator.
   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.ParseDocumentContent()
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at YamlDotNet.Core.ParserExtensions.TryConsume[T](IParser parser, T& event)
   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 2: found unexpected document indicator

hs-hsyaml-event

 invalid_correct
Parsing error near byte offset Pos {posByteOffset = 3, posCharOffset = 3, posLine = 1, posColumn = 3} (Lexical error near " \"a")
+STR
+DOC ---
=VAL :

hs-hsyaml-json

 invalid_correct
hsyaml-parser: user error (Lexical error near " \"a")

js-jsyaml-json

 invalid_correct
/node/node_modules/js-yaml/lib/loader.js:187
  throw generateError(state, message);
  ^
YAMLException: unexpected end of the document within a double quoted scalar (2:1)

 1 | --- "a
 2 | ... x
-----^
 3 | b"
    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:695:7)
    at composeNode (/node/node_modules/js-yaml/lib/loader.js:1447:13)
    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) {
  reason: 'unexpected end of the document within a double quoted scalar',
  mark: {
    name: null,
    buffer: '--- "a\n... x\nb"\n',
    position: 7,
    line: 1,
    column: 0,
    snippet: ' 1 | --- "a\n 2 | ... x\n-----^\n 3 | b"'
  }
}

Node.js v20.13.1

js-yaml-event

 invalid_correct
Missing closing "quote at line 1, column 7:

--- "a
      ^
+STR
+DOC ---
=VAL "
-DOC ...
-STR

js-yaml-json

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

YAMLParseError: Missing closing "quote at line 1, column 7:

--- "a
      ^

    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:171:9)
    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 Object.composeNode (/node/node_modules/yaml/dist/compose/compose-node.js:24:34)
    at Object.composeDoc (/node/node_modules/yaml/dist/compose/compose-doc.js:34:23)
    at Composer.next (/node/node_modules/yaml/dist/compose/composer.js:149:40)
    at next (<anonymous>)
    at Composer.compose (/node/node_modules/yaml/dist/compose/composer.js:131:25) {
  code: 'MISSING_CHAR',
  pos: [ 6, 7 ],
  linePos: [ { line: 1, col: 7 }, { line: 2, col: 1 } ]
}

Node.js v20.13.1

lua-lyaml-json

 invalid_correct
luajit: 1:1: found unexpected document indicator
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:497: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x5569ec55aed0

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 `...` within quoted scalar [YamlStreamError]
+STR

perl-pp-event

 invalid_correct
Line      : 2
Column    : 1
Message   : Missing closing quote <"> or invalid document marker
Where     : /perl5/lib/perl5/YAML/PP/Lexer.pm line 661
YAML      : "... x"
  at /yaml/bin/perl-pp-event line 46.
+STR
+DOC ---

perl-pp-json

 invalid_correct
Line      : 2
Column    : 1
Message   : Missing closing quote <"> or invalid document marker
Where     : /perl5/lib/perl5/YAML/PP/Lexer.pm line 661
YAML      : "... x"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pp-perl

 invalid_correct
Line      : 2
Column    : 1
Message   : Missing closing quote <"> or invalid document marker
Where     : /perl5/lib/perl5/YAML/PP/Lexer.pm line 661
YAML      : "... x"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pplibyaml-json

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

    found unexpected document indicator

was found at , line: 2, column: 1
while scanning a quoted scalar at line: 1, column: 5

perl-pplibyaml-perl

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

    found unexpected document indicator

was found at , line: 2, column: 1
while scanning a quoted scalar at line: 1, column: 5

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 does not support a feature in line '"a' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 invalid_correct
YAML::Tiny does not support a feature in line '"a' at /yaml/bin/perl-tiny-perl line 15.

perl-xs-json

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

    found unexpected document indicator

was found at document: 1, line: 2, column: 1
while scanning a quoted scalar at line: 1, column: 5

perl-xs-perl

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

    found unexpected document indicator

was found at document: 1, line: 2, column: 1
while scanning a quoted scalar at line: 1, column: 5

perl-yaml-json

 invalid_correct
YAML Error: Inconsistent indentation level
   Code: YAML_PARSE_ERR_INCONSISTENT_INDENTATION
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 804.

perl-yaml-perl

 invalid_correct
YAML Error: Inconsistent indentation level
   Code: YAML_PARSE_ERR_INCONSISTENT_INDENTATION
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 804.

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 209, in parse_document_content
    if self.check_token(DirectiveToken,
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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 1151, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1242, in scan_flow_scalar_spaces
    breaks = self.scan_flow_scalar_breaks(double, start_mark)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1261, in scan_flow_scalar_breaks
    raise ScannerError("while scanning a quoted scalar", start_mark,
yaml.scanner.ScannerError: while scanning a quoted scalar
  in "<unicode string>", line 1, column 5:
    --- "a
        ^
found unexpected document separator
  in "<unicode string>", line 2, column 1:
    ... x
    ^
+STR
+DOC ---

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 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 209, in parse_document_content
    if self.check_token(DirectiveToken,
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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 1151, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1242, in scan_flow_scalar_spaces
    breaks = self.scan_flow_scalar_breaks(double, start_mark)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1261, in scan_flow_scalar_breaks
    raise ScannerError("while scanning a quoted scalar", start_mark,
yaml.scanner.ScannerError: while scanning a quoted scalar
  in "<unicode string>", line 1, column 5:
    --- "a
        ^
found unexpected document separator
  in "<unicode string>", line 2, column 1:
    ... x
    ^

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 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 209, in parse_document_content
    if self.check_token(DirectiveToken,
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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 1151, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1242, in scan_flow_scalar_spaces
    breaks = self.scan_flow_scalar_breaks(double, start_mark)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/scanner.py", line 1261, in scan_flow_scalar_breaks
    raise ScannerError("while scanning a quoted scalar", start_mark,
yaml.scanner.ScannerError: while scanning a quoted scalar
  in "<unicode string>", line 1, column 5:
    --- "a
        ^
found unexpected document separator
  in "<unicode string>", line 2, column 1:
    ... x
    ^

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 279, in parse_document_content
    if self.scanner.check_token(
       ^^^^^^^^^^^^^^^^^^^^^^^^^
  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 1355, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1456, in scan_flow_scalar_spaces
    breaks = self.scan_flow_scalar_breaks(double, start_mark)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1476, in scan_flow_scalar_breaks
    raise ScannerError(
ruamel.yaml.scanner.ScannerError: while scanning a quoted scalar
  in "<unicode string>", line 1, column 5:
    --- "a
        ^ (line: 1)
found unexpected document separator
  in "<unicode string>", line 2, column 1:
    ... x
    ^ (line: 2)
+STR
+DOC ---

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 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 279, in parse_document_content
    if self.scanner.check_token(
       ^^^^^^^^^^^^^^^^^^^^^^^^^
  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 1355, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1456, in scan_flow_scalar_spaces
    breaks = self.scan_flow_scalar_breaks(double, start_mark)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1476, in scan_flow_scalar_breaks
    raise ScannerError(
ruamel.yaml.scanner.ScannerError: while scanning a quoted scalar
  in "<unicode string>", line 1, column 5:
    --- "a
        ^ (line: 1)
found unexpected document separator
  in "<unicode string>", line 2, column 1:
    ... x
    ^ (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 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 279, in parse_document_content
    if self.scanner.check_token(
       ^^^^^^^^^^^^^^^^^^^^^^^^^
  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 1355, in scan_flow_scalar
    chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1456, in scan_flow_scalar_spaces
    breaks = self.scan_flow_scalar_breaks(double, start_mark)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/scanner.py", line 1476, in scan_flow_scalar_breaks
    raise ScannerError(
ruamel.yaml.scanner.ScannerError: while scanning a quoted scalar
  in "<unicode string>", line 1, column 5:
    --- "a
        ^ (line: 1)
found unexpected document separator
  in "<unicode string>", line 2, column 1:
    ... x
    ^ (line: 2)

ruby-psych-json

 invalid_correct
/ruby/gems/psych/lib/psych.rb:458:in `parse': (<unknown>): found unexpected document indicator while scanning a quoted scalar at line 1 column 5 (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>'

rust-yamlrust-event

 invalid_correct
Error: ScanError { mark: Marker { index: 4, line: 1, col: 4 }, info: "while scanning a quoted scalar, found unexpected document indicator" }
+STR
+DOC