public void VerifyTokenWithLocalTags()
{
AssertSequenceOfEventsFrom(Yaml.ParserForResource("local-tags.yaml"),
StreamStart,
DocumentStart(Explicit),
BlockMappingStart.T("!MyObject").Explicit,
PlainScalar("a"),
PlainScalar("1.0"),
PlainScalar("b"),
PlainScalar("42"),
PlainScalar("c"),
PlainScalar("-7"),
MappingEnd,
DocumentEnd(Implicit),
StreamEnd);
}
public void VerifyTokenWithMultiDocTag()
{
AssertSequenceOfEventsFrom(Yaml.ParserForResource("multi-doc-tag.yaml"),
StreamStart,
DocumentStart(Explicit, Version(1, 1),
TagDirective("!x!", "tag:example.com,2014:"),
TagDirective("!", "!"),
TagDirective("!!", TagYaml)),
BlockMappingStart.T("tag:example.com,2014:foo").Explicit,
PlainScalar("x"),
PlainScalar("0"),
MappingEnd,
DocumentEnd(Implicit),
DocumentStart(Explicit),
BlockMappingStart.T("tag:example.com,2014:bar").Explicit,
PlainScalar("x"),
PlainScalar("1"),
MappingEnd,
DocumentEnd(Implicit),
StreamEnd);
}
/// <summary>
/// Push the current indentation level to the stack and set the new level
/// the current column is greater than the indentation level. In this case,
/// append or insert the specified token into the token queue.
/// </summary>
private void RollIndent(int column, int number, bool isSequence, Mark position)
{
// In the flow context, do nothing.
if (flowLevel > 0)
{
return;
}
if (indent < column)
{
// Push the current indentation level to the stack and set the new
// indentation level.
indents.Push(indent);
indent = column;
// Create a token and insert it into the queue.
Token token;
if (isSequence)
{
token = new BlockSequenceStart(position, position);
}
else
{
token = new BlockMappingStart(position, position);
}
if (number == -1)
{
tokens.Enqueue(token);
}
else
{
tokens.Insert(number - tokensParsed, token);
}
}
}
/// <summary>
/// Parse the productions:
/// block_node_or_indentless_sequence ::=
/// ALIAS
/// *****
/// | properties (block_content | indentless_block_sequence)?
/// ********** *
/// | block_content | indentless_block_sequence
/// *
/// block_node ::= ALIAS
/// *****
/// | properties block_content?
/// ********** *
/// | block_content
/// *
/// flow_node ::= ALIAS
/// *****
/// | properties flow_content?
/// ********** *
/// | flow_content
/// *
/// properties ::= TAG ANCHOR? | ANCHOR TAG?
/// *************************
/// block_content ::= block_collection | flow_collection | SCALAR
/// ******
/// flow_content ::= flow_collection | SCALAR
/// ******
/// </summary>
private Event ParseNode(bool isBlock, bool isIndentlessSequence)
{
AnchorAlias alias = GetCurrentToken() as AnchorAlias;
if (alias != null)
{
state = states.Pop();
Event evt = new Events.AnchorAlias(alias.Value, alias.Start, alias.End);
Skip();
return(evt);
}
Mark start = GetCurrentToken().Start;
Anchor anchor = null;
Tag tag = null;
// The anchor and the tag can be in any order. This loop repeats at most twice.
while (true)
{
if (anchor == null && (anchor = GetCurrentToken() as Anchor) != null)
{
Skip();
}
else if (tag == null && (tag = GetCurrentToken() as Tag) != null)
{
Skip();
}
else
{
break;
}
}
string tagName = null;
if (tag != null)
{
if (string.IsNullOrEmpty(tag.Handle))
{
tagName = tag.Suffix;
}
else if (tagDirectives.Contains(tag.Handle))
{
tagName = string.Concat(tagDirectives[tag.Handle].Prefix, tag.Suffix);
}
else
{
throw new SemanticErrorException(tag.Start, tag.End, "While parsing a node, find undefined tag handle.");
}
}
if (string.IsNullOrEmpty(tagName))
{
tagName = null;
}
string anchorName = anchor != null?string.IsNullOrEmpty(anchor.Value) ? null : anchor.Value : null;
bool isImplicit = string.IsNullOrEmpty(tagName);
if (isIndentlessSequence && GetCurrentToken() is BlockEntry)
{
state = ParserState.YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE;
return(new Events.SequenceStart(
anchorName,
tagName,
isImplicit,
SequenceStyle.Block,
start,
GetCurrentToken().End
));
}
else
{
Scalar scalar = GetCurrentToken() as Scalar;
if (scalar != null)
{
bool isPlainImplicit = false;
bool isQuotedImplicit = false;
if ((scalar.Style == ScalarStyle.Plain && tagName == null) || tagName == Constants.DefaultHandle)
{
isPlainImplicit = true;
}
else if (tagName == null)
{
isQuotedImplicit = true;
}
state = states.Pop();
Event evt = new Events.Scalar(anchorName, tagName, scalar.Value, scalar.Style, isPlainImplicit, isQuotedImplicit, start, scalar.End);
Skip();
return(evt);
}
FlowSequenceStart flowSequenceStart = GetCurrentToken() as FlowSequenceStart;
if (flowSequenceStart != null)
{
state = ParserState.YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE;
return(new Events.SequenceStart(anchorName, tagName, isImplicit, SequenceStyle.Flow, start, flowSequenceStart.End));
}
FlowMappingStart flowMappingStart = GetCurrentToken() as FlowMappingStart;
if (flowMappingStart != null)
{
state = ParserState.YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE;
return(new Events.MappingStart(anchorName, tagName, isImplicit, MappingStyle.Flow, start, flowMappingStart.End));
}
if (isBlock)
{
BlockSequenceStart blockSequenceStart = GetCurrentToken() as BlockSequenceStart;
if (blockSequenceStart != null)
{
state = ParserState.YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE;
return(new Events.SequenceStart(anchorName, tagName, isImplicit, SequenceStyle.Block, start, blockSequenceStart.End));
}
BlockMappingStart blockMappingStart = GetCurrentToken() as BlockMappingStart;
if (blockMappingStart != null)
{
state = ParserState.YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE;
return(new Events.MappingStart(anchorName, tagName, isImplicit, MappingStyle.Block, start, GetCurrentToken().End));
}
}
if (anchorName != null || tag != null)
{
state = states.Pop();
return(new Events.Scalar(anchorName, tagName, string.Empty, ScalarStyle.Plain, isImplicit, false, start, GetCurrentToken().End));
}
var current = GetCurrentToken();
throw new SemanticErrorException(current.Start, current.End, "While parsing a node, did not find expected node content.");
}
}
private ParsingEvent ParseNode(bool isBlock, bool isIndentlessSequence)
{
YamlDotNet.Core.Tokens.AnchorAlias anchorAlias = GetCurrentToken() as YamlDotNet.Core.Tokens.AnchorAlias;
if (anchorAlias != null)
{
state = states.Pop();
ParsingEvent result = new YamlDotNet.Core.Events.AnchorAlias(anchorAlias.Value, anchorAlias.Start, anchorAlias.End);
Skip();
return(result);
}
Mark start = GetCurrentToken().Start;
Anchor anchor = null;
YamlDotNet.Core.Tokens.Tag tag = null;
while (true)
{
if (anchor == null && (anchor = (GetCurrentToken() as Anchor)) != null)
{
Skip();
}
else
{
if (tag != null || (tag = (GetCurrentToken() as YamlDotNet.Core.Tokens.Tag)) == null)
{
break;
}
Skip();
}
}
string text = null;
if (tag != null)
{
if (string.IsNullOrEmpty(tag.Handle))
{
text = tag.Suffix;
}
else
{
if (!tagDirectives.Contains(tag.Handle))
{
throw new SemanticErrorException(tag.Start, tag.End, "While parsing a node, find undefined tag handle.");
}
text = tagDirectives[tag.Handle].Prefix + tag.Suffix;
}
}
if (string.IsNullOrEmpty(text))
{
text = null;
}
string text2 = (anchor == null) ? null : ((!string.IsNullOrEmpty(anchor.Value)) ? anchor.Value : null);
bool flag = string.IsNullOrEmpty(text);
if (isIndentlessSequence && GetCurrentToken() is BlockEntry)
{
state = ParserState.IndentlessSequenceEntry;
return(new SequenceStart(text2, text, flag, SequenceStyle.Block, start, GetCurrentToken().End));
}
YamlDotNet.Core.Tokens.Scalar scalar = GetCurrentToken() as YamlDotNet.Core.Tokens.Scalar;
if (scalar != null)
{
bool isPlainImplicit = false;
bool isQuotedImplicit = false;
if ((scalar.Style == ScalarStyle.Plain && text == null) || text == "!")
{
isPlainImplicit = true;
}
else if (text == null)
{
isQuotedImplicit = true;
}
state = states.Pop();
ParsingEvent result2 = new YamlDotNet.Core.Events.Scalar(text2, text, scalar.Value, scalar.Style, isPlainImplicit, isQuotedImplicit, start, scalar.End);
Skip();
return(result2);
}
FlowSequenceStart flowSequenceStart = GetCurrentToken() as FlowSequenceStart;
if (flowSequenceStart != null)
{
state = ParserState.FlowSequenceFirstEntry;
return(new SequenceStart(text2, text, flag, SequenceStyle.Flow, start, flowSequenceStart.End));
}
FlowMappingStart flowMappingStart = GetCurrentToken() as FlowMappingStart;
if (flowMappingStart != null)
{
state = ParserState.FlowMappingFirstKey;
return(new MappingStart(text2, text, flag, MappingStyle.Flow, start, flowMappingStart.End));
}
if (isBlock)
{
BlockSequenceStart blockSequenceStart = GetCurrentToken() as BlockSequenceStart;
if (blockSequenceStart != null)
{
state = ParserState.BlockSequenceFirstEntry;
return(new SequenceStart(text2, text, flag, SequenceStyle.Block, start, blockSequenceStart.End));
}
BlockMappingStart blockMappingStart = GetCurrentToken() as BlockMappingStart;
if (blockMappingStart != null)
{
state = ParserState.BlockMappingFirstKey;
return(new MappingStart(text2, text, flag, MappingStyle.Block, start, GetCurrentToken().End));
}
}
if (text2 != null || tag != null)
{
state = states.Pop();
return(new YamlDotNet.Core.Events.Scalar(text2, text, string.Empty, ScalarStyle.Plain, flag, false, start, GetCurrentToken().End));
}
Token token = GetCurrentToken();
throw new SemanticErrorException(token.Start, token.End, "While parsing a node, did not find expected node content.");
}
