/// <summary>
/// Parse the productions:
/// flow_sequence ::= FLOW-SEQUENCE-START
/// *******************
/// (flow_sequence_entry FLOW-ENTRY)*
/// * **********
/// flow_sequence_entry?
/// *
/// FLOW-SEQUENCE-END
/// *****************
/// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
/// *
/// </summary>
private ParsingEvent ParseFlowSequenceEntry(bool isFirst)
{
if (isFirst)
{
GetCurrentToken();
Skip();
}
ParsingEvent evt;
if (!(GetCurrentToken() is FlowSequenceEnd))
{
if (!isFirst)
{
if (GetCurrentToken() is FlowEntry)
{
Skip();
}
else
{
var current = GetCurrentToken();
throw new SemanticErrorException(current.Start, current.End, "While parsing a flow sequence, did not find expected ',' or ']'.");
}
}
if (GetCurrentToken() is Key)
{
state = ParserState.FlowSequenceEntryMappingKey;
evt = new Events.MappingStart(null, null, true, MappingStyle.Flow);
Skip();
return(evt);
}
else if (!(GetCurrentToken() is FlowSequenceEnd))
{
states.Push(ParserState.FlowSequenceEntry);
return(ParseNode(false, false));
}
}
state = states.Pop();
evt = new Events.SequenceEnd(GetCurrentToken().Start, GetCurrentToken().End);
Skip();
return(evt);
}
/// <summary>
/// Parse the productions:
/// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
/// ******************** *********** * *********
/// </summary>
private ParsingEvent ParseBlockSequenceEntry(bool isFirst)
{
if (isFirst)
{
GetCurrentToken();
Skip();
}
if (GetCurrentToken() is BlockEntry)
{
Mark mark = GetCurrentToken().End;
Skip();
if (!(GetCurrentToken() is BlockEntry || GetCurrentToken() is BlockEnd))
{
states.Push(ParserState.BlockSequenceEntry);
return(ParseNode(true, false));
}
else
{
state = ParserState.BlockSequenceEntry;
return(ProcessEmptyScalar(mark));
}
}
else if (GetCurrentToken() is BlockEnd)
{
state = states.Pop();
ParsingEvent evt = new Events.SequenceEnd(GetCurrentToken().Start, GetCurrentToken().End);
Skip();
return(evt);
}
else
{
var current = GetCurrentToken();
throw new SemanticErrorException(current.Start, current.End, "While parsing a block collection, did not find expected '-' indicator.");
}
}
/// <summary>
/// Parse the productions:
/// flow_sequence ::= FLOW-SEQUENCE-START
/// *******************
/// (flow_sequence_entry FLOW-ENTRY)*
/// * **********
/// flow_sequence_entry?
/// *
/// FLOW-SEQUENCE-END
/// *****************
/// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
/// *
/// </summary>
private ParsingEvent ParseFlowSequenceEntry(bool isFirst)
{
if (isFirst)
{
GetCurrentToken();
Skip();
}
ParsingEvent evt;
if (!(GetCurrentToken() is FlowSequenceEnd))
{
if (!isFirst)
{
if (GetCurrentToken() is FlowEntry)
{
Skip();
}
else
{
var current = GetCurrentToken();
throw new SemanticErrorException(current.Start, current.End, "While parsing a flow sequence, did not find expected ',' or ']'.");
}
}
if (GetCurrentToken() is Key)
{
state = ParserState.FlowSequenceEntryMappingKey;
evt = new Events.MappingStart(null, null, true, MappingStyle.Flow);
Skip();
return evt;
}
else if (!(GetCurrentToken() is FlowSequenceEnd))
{
states.Push(ParserState.FlowSequenceEntry);
return ParseNode(false, false);
}
}
state = states.Pop();
evt = new Events.SequenceEnd(GetCurrentToken().Start, GetCurrentToken().End);
Skip();
return evt;
}
/// <summary>
/// Parse the productions:
/// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
/// ******************** *********** * *********
/// </summary>
private ParsingEvent ParseBlockSequenceEntry(bool isFirst)
{
if (isFirst)
{
GetCurrentToken();
Skip();
}
if (GetCurrentToken() is BlockEntry)
{
Mark mark = GetCurrentToken().End;
Skip();
if (!(GetCurrentToken() is BlockEntry || GetCurrentToken() is BlockEnd))
{
states.Push(ParserState.BlockSequenceEntry);
return ParseNode(true, false);
}
else
{
state = ParserState.BlockSequenceEntry;
return ProcessEmptyScalar(mark);
}
}
else if (GetCurrentToken() is BlockEnd)
{
state = states.Pop();
ParsingEvent evt = new Events.SequenceEnd(GetCurrentToken().Start, GetCurrentToken().End);
Skip();
return evt;
}
else
{
var current = GetCurrentToken();
throw new SemanticErrorException(current.Start, current.End, "While parsing a block collection, did not find expected '-' indicator.");
}
}