# YAML Test Matrix

--- &test-A2M4
  Title: Spec Example 6.2. Indentation Indicators
  Tags: [ indent, libyaml-err, sequence, spec, upto-1.2, whitespace ]

YAML

? a
: -	b
  -  -	c
     - d

Expected Events

+STR
+DOC
+MAP
=VAL :a
+SEQ
=VAL :b
+SEQ
=VAL :c
=VAL :d
-SEQ
-SEQ
-MAP
-DOC
-STR

Expected JSON

{
"a": [
"b",
[
"c",
"d"
]
]
}

cpp-event

 ok

hs-yaml-event

 ok

js-event

 ok

nimyaml-event

 ok

perl5-pp-event

 ok

hs-yaml-json

 json_ok

js-json

 json_ok

js-yaml-json

 json_ok

perl5-pp-json

 json_ok

perl5-syck-json

 json_diff
{
  "a": "-\tb -  -\tc - d"
}

java-event

 error
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 2, column 4:
    : -	b
       ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:419)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceEntry.produce(ParserImpl.java:504)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceFirstEntry.produce(ParserImpl.java:496)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.Yaml$3.hasNext(Yaml.java:711)
	at org.yaml.editor.Snake2Events.yamlToEvents(Snake2Events.java:111)
	at org.yaml.editor.Snake2Events.main(Snake2Events.java:119)

java-json

 error
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 2, column 4:
    : -	b
       ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:419)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceEntry.produce(ParserImpl.java:504)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceFirstEntry.produce(ParserImpl.java:496)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148)
	at org.yaml.snakeyaml.composer.Composer.composeSequenceNode(Composer.java:188)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:142)
	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:236)
	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:227)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:215)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:85)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:123)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:547)
	at org.yaml.editor.Snake2Json.yamlToJson(Snake2Json.java:18)
	at org.yaml.editor.Snake2Json.main(Snake2Json.java:25)

libyaml-event

 error
+STR
+DOC
+MAP
=VAL :a
+SEQ
Parse error: found character that cannot start any token

luajit-json

 error
luajit: found character that cannot start any token at document: 1, line: 2, column: 4
while scanning for the next token at line: 2, column: 4

stack traceback:
	[C]: in function 'load'
	/bin/luajit-json:6: in main chunk
	[C]: at 0x004044a0

perl5-pegex-event

 error
Maximum parsing rules reached (1000)

perl5-pm-json

 error
YAML Error: Inconsistent indentation level
   Code: YAML_PARSE_ERR_INCONSISTENT_INDENTATION
   Line: 3
   Document: 1
 at /lib/perl5/YAML/Loader.pm line 804.

perl5-pm-pl

 error
YAML Error: Inconsistent indentation level
   Code: YAML_PARSE_ERR_INCONSISTENT_INDENTATION
   Line: 3
   Document: 1
 at /lib/perl5/YAML/Loader.pm line 804.

perl5-tiny-json

 error
YAML::Tiny does not support a feature in line '? a' at /bin/perl5-tiny-json line 12.

perl5-tiny-pl

 error
YAML::Tiny does not support a feature in line '? a' at /bin/perl5-tiny-pl line 15.

perl5-xs-json

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

    found character that cannot start any token

was found at document: 1, line: 2, column: 4
while scanning for the next token at line: 2, column: 4

perl5-xs-pl

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

    found character that cannot start any token

was found at document: 1, line: 2, column: 4
while scanning for the next token at line: 2, column: 4

pyyaml-event

 error
+STR
+DOC
+MAP
=VAL :a
+SEQ
Traceback (most recent call last):
  File "/bin/pyyaml-event", line 10, in <module>
    for event in yaml.parse(sys.stdin.read()):
  File "/lib/python2.7/site-packages/yaml/__init__.py", line 36, in parse
    while loader.check_event():
  File "/lib/python2.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/lib/python2.7/site-packages/yaml/parser.py", line 379, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/lib/python2.7/site-packages/yaml/parser.py", line 384, in parse_block_sequence_entry
    if not self.check_token(BlockEntryToken, BlockEndToken):
  File "/lib/python2.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/lib/python2.7/site-packages/yaml/scanner.py", line 260, in fetch_more_tokens
    % ch.encode('utf-8'), self.get_mark())
yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<string>", line 2, column 4:
    : -	b
       ^

pyyaml-json

 error
Traceback (most recent call last):
  File "/bin/pyyaml-json", line 19, in <module>
    for doc in yaml.load_all(sys.stdin.read()):
  File "/lib/python2.7/site-packages/yaml/__init__.py", line 90, in load_all
    yield loader.get_data()
  File "/lib/python2.7/site-packages/yaml/constructor.py", line 33, in get_data
    return self.construct_document(self.get_node())
  File "/lib/python2.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/lib/python2.7/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 82, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
  File "/lib/python2.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/lib/python2.7/site-packages/yaml/parser.py", line 379, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/lib/python2.7/site-packages/yaml/parser.py", line 384, in parse_block_sequence_entry
    if not self.check_token(BlockEntryToken, BlockEndToken):
  File "/lib/python2.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/lib/python2.7/site-packages/yaml/scanner.py", line 260, in fetch_more_tokens
    % ch.encode('utf-8'), self.get_mark())
yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<string>", line 2, column 4:
    : -	b
       ^

pyyaml-py

 error
Traceback (most recent call last):
  File "/bin/pyyaml-py", line 36, in <module>
    for doc in yaml.load_all(sys.stdin.read()):
  File "/lib/python2.7/site-packages/yaml/__init__.py", line 90, in load_all
    yield loader.get_data()
  File "/lib/python2.7/site-packages/yaml/constructor.py", line 33, in get_data
    return self.construct_document(self.get_node())
  File "/lib/python2.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/lib/python2.7/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 82, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/lib/python2.7/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
  File "/lib/python2.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/lib/python2.7/site-packages/yaml/parser.py", line 379, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/lib/python2.7/site-packages/yaml/parser.py", line 384, in parse_block_sequence_entry
    if not self.check_token(BlockEntryToken, BlockEndToken):
  File "/lib/python2.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/lib/python2.7/site-packages/yaml/scanner.py", line 260, in fetch_more_tokens
    % ch.encode('utf-8'), self.get_mark())
yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "<string>", line 2, column 4:
    : -	b
       ^

ruamel-event

 error
+STR
+DOC
+MAP
=VAL :a
+SEQ
Traceback (most recent call last):
  File "/bin/ruamel-event", line 10, in <module>
    for event in ruamel.yaml.parse(sys.stdin.read()):
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/main.py", line 880, in parse
    while loader._parser.check_event():
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 498, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 504, in parse_block_sequence_entry
    token.move_comment(self.scanner.peek_token())
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/scanner.py", line 182, in peek_token
    self.fetch_more_tokens()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/scanner.py", line 321, 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 "<byte string>", line 2, column 4:
    : -	b
       ^ (line: 2)

ruamel-json

 error
Traceback (most recent call last):
  File "/bin/ruamel-json", line 19, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/main.py", line 949, in load_all
    yield loader._constructor.get_data()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/constructor.py", line 101, in get_data
    return self.construct_document(self.composer.get_node())
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 68, in get_node
    return self.compose_document()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 101, in compose_document
    node = self.compose_node(None, None)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 138, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 217, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 136, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 178, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 498, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 504, in parse_block_sequence_entry
    token.move_comment(self.scanner.peek_token())
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/scanner.py", line 182, in peek_token
    self.fetch_more_tokens()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/scanner.py", line 321, 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 "<byte string>", line 2, column 4:
    : -	b
       ^ (line: 2)

ruamel-py

 error
Traceback (most recent call last):
  File "/bin/ruamel-py", line 36, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/main.py", line 949, in load_all
    yield loader._constructor.get_data()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/constructor.py", line 101, in get_data
    return self.construct_document(self.composer.get_node())
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 68, in get_node
    return self.compose_document()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 101, in compose_document
    node = self.compose_node(None, None)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 138, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 217, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 136, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/composer.py", line 178, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 498, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/parser.py", line 504, in parse_block_sequence_entry
    token.move_comment(self.scanner.peek_token())
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/scanner.py", line 182, in peek_token
    self.fetch_more_tokens()
  File "/usr/local/lib/python2.7/dist-packages/ruamel/yaml/scanner.py", line 321, 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 "<byte string>", line 2, column 4:
    : -	b
       ^ (line: 2)

ruby-json

 error
/usr/lib/ruby/2.3.0/psych.rb:380:in `parse': (<unknown>): found character that cannot start any token while scanning for the next token at line 2 column 4 (Psych::SyntaxError)
	from /usr/lib/ruby/2.3.0/psych.rb:380:in `parse_stream'
	from /usr/lib/ruby/2.3.0/psych.rb:463:in `load_stream'
	from /bin/ruby-json:6:in `<main>'

perl5-pp-pl

 na
{
  'a' => [
         'b',
         [
           'c',
           'd'
         ]
       ]
}

perl5-syck-pl

 na
{
  'a' => '-	b -  -	c - d'
}