/// <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: /// 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; }