Example #1
0
	// EmitKey
	void Emitter::EmitKey()
	{
		if(!good())
			return;
		
		EMITTER_STATE curState = m_pState->GetCurState();
		FLOW_TYPE flowType = m_pState->GetCurGroupFlowType();
		if(curState != ES_WAITING_FOR_BLOCK_MAP_ENTRY && curState != ES_DONE_WITH_BLOCK_MAP_VALUE
		   && curState != ES_WAITING_FOR_FLOW_MAP_ENTRY && curState != ES_DONE_WITH_FLOW_MAP_VALUE)
			return m_pState->SetError(ErrorMsg::UNEXPECTED_KEY_TOKEN);

		if(flowType == FT_BLOCK) {
			if(curState == ES_DONE_WITH_BLOCK_MAP_VALUE)
				m_stream << '\n';
			unsigned curIndent = m_pState->GetCurIndent();
			m_stream << IndentTo(curIndent);
			m_pState->SwitchState(ES_WAITING_FOR_BLOCK_MAP_KEY);
		} else if(flowType == FT_FLOW) {
			if(curState == ES_DONE_WITH_FLOW_MAP_VALUE) {
				m_stream << ',';
				m_pState->RequireSeparation();
			}
			m_pState->SwitchState(ES_WAITING_FOR_FLOW_MAP_KEY);
		} else
			assert(false);
		
		if(m_pState->GetMapKeyFormat() == LongKey)
			m_pState->StartLongKey();
		else if(m_pState->GetMapKeyFormat() == Auto)
			m_pState->StartSimpleKey();
		else
			assert(false);
	}
Example #2
0
void Emitter::BlockMapPrepareLongKeyValue(EmitterNodeType::value child) {
  const unsigned curIndent = m_pState->CurIndent();

  if (child == EmitterNodeType::None)
    return;

  if (!m_pState->HasBegunContent()) {
    m_stream << "\n";
    m_stream << IndentTo(curIndent);
    m_stream << ":";
  }

  switch (child) {
    case EmitterNodeType::None:
      break;
    case EmitterNodeType::Property:
    case EmitterNodeType::Scalar:
    case EmitterNodeType::FlowSeq:
    case EmitterNodeType::FlowMap:
    case EmitterNodeType::BlockSeq:
    case EmitterNodeType::BlockMap:
      SpaceOrIndentTo(true, curIndent + 1);
      break;
  }
}
Example #3
0
	// EmitEndMap
	void Emitter::EmitEndMap()
	{
		if(!good())
			return;
		
		if(m_pState->GetCurGroupType() != GT_MAP)
			return m_pState->SetError(ErrorMsg::UNEXPECTED_END_MAP);

		EMITTER_STATE curState = m_pState->GetCurState();
		FLOW_TYPE flowType = m_pState->GetCurGroupFlowType();
		if(flowType == FT_BLOCK) {
			// Note: block sequences are *not* allowed to be empty, but we convert it
			//       to a flow sequence if it is
			assert(curState == ES_DONE_WITH_BLOCK_MAP_VALUE || curState == ES_WAITING_FOR_BLOCK_MAP_ENTRY);
			if(curState == ES_WAITING_FOR_BLOCK_MAP_ENTRY) {
				// Note: only one of these will actually output anything for a given situation
				EmitSeparationIfNecessary();
				unsigned curIndent = m_pState->GetCurIndent();
				m_stream << IndentTo(curIndent);
				m_stream << "{}";
			}
		} else if(flowType == FT_FLOW) {
			// Note: flow maps are allowed to be empty
			assert(curState == ES_DONE_WITH_FLOW_MAP_VALUE || curState == ES_WAITING_FOR_FLOW_MAP_ENTRY);
			m_stream << "}";
		} else
			assert(false);
		
		m_pState->PopState();
		m_pState->EndGroup(GT_MAP);
		
		PostAtomicWrite();
	}
Example #4
0
// SpaceOrIndentTo
// . Prepares for some more content by proper spacing
void Emitter::SpaceOrIndentTo(bool requireSpace, unsigned indent) {
  if (m_stream.comment())
    m_stream << "\n";
  if (m_stream.col() > 0 && requireSpace)
    m_stream << " ";
  m_stream << IndentTo(indent);
}
Example #5
0
void Emitter::BlockMapPrepareLongKey(EmitterNodeType::value child) {
  const unsigned curIndent = m_pState->CurIndent();
  const std::size_t childCount = m_pState->CurGroupChildCount();

  if (child == EmitterNodeType::None)
    return;

  if (!m_pState->HasBegunContent()) {
    if (childCount > 0) {
      m_stream << "\n";
    }
    if (m_stream.comment()) {
      m_stream << "\n";
    }
    m_stream << IndentTo(curIndent);
    m_stream << "?";
  }

  switch (child) {
    case EmitterNodeType::None:
      break;
    case EmitterNodeType::Property:
    case EmitterNodeType::Scalar:
    case EmitterNodeType::FlowSeq:
    case EmitterNodeType::FlowMap:
      SpaceOrIndentTo(true, curIndent + 1);
      break;
    case EmitterNodeType::BlockSeq:
    case EmitterNodeType::BlockMap:
      break;
  }
}
Example #6
0
void Emitter::FlowMapPrepareSimpleKeyValue(EmitterNodeType::value child) {
  const unsigned lastIndent = m_pState->LastIndent();

  if (!m_pState->HasBegunNode()) {
    if (m_stream.comment())
      m_stream << "\n";
    m_stream << IndentTo(lastIndent);
    m_stream << ":";
  }

  switch (child) {
    case EmitterNodeType::None:
      break;
    case EmitterNodeType::Property:
    case EmitterNodeType::Scalar:
    case EmitterNodeType::FlowSeq:
    case EmitterNodeType::FlowMap:
      SpaceOrIndentTo(
          m_pState->HasBegunContent() || m_pState->CurGroupChildCount() > 0,
          lastIndent);
      break;
    case EmitterNodeType::BlockSeq:
    case EmitterNodeType::BlockMap:
      assert(false);
      break;
  }
}
Example #7
0
void Emitter::BlockSeqPrepareNode(EmitterNodeType::value child) {
  const unsigned curIndent = m_pState->CurIndent();
  const unsigned nextIndent = curIndent + m_pState->CurGroupIndent();

  if (child == EmitterNodeType::None)
    return;

  if (!m_pState->HasBegunContent()) {
    if (m_pState->CurGroupChildCount() > 0 || m_stream.comment()) {
      m_stream << "\n";
    }
    m_stream << IndentTo(curIndent);
    m_stream << "-";
  }

  switch (child) {
    case EmitterNodeType::None:
      break;
    case EmitterNodeType::Property:
    case EmitterNodeType::Scalar:
    case EmitterNodeType::FlowSeq:
    case EmitterNodeType::FlowMap:
      SpaceOrIndentTo(m_pState->HasBegunContent(), nextIndent);
      break;
    case EmitterNodeType::BlockSeq:
      m_stream << "\n";
      break;
    case EmitterNodeType::BlockMap:
      if (m_pState->HasBegunContent() || m_stream.comment())
        m_stream << "\n";
      break;
  }
}
Example #8
0
// EmitEndMap
void Emitter::EmitEndMap() {
  if (!good())
    return;

  if (m_pState->CurGroupChildCount() == 0)
    m_pState->ForceFlow();

  if (m_pState->CurGroupFlowType() == FlowType::Flow) {
    if (m_stream.comment())
      m_stream << "\n";
    m_stream << IndentTo(m_pState->CurIndent());
    if (m_pState->CurGroupChildCount() == 0)
      m_stream << "{";
    m_stream << "}";
  }

  m_pState->EndedGroup(GroupType::Map);
}
Example #9
0
	// EmitValue
	void Emitter::EmitValue()
	{
		if(!good())
			return;

		EMITTER_STATE curState = m_pState->GetCurState();
		FLOW_TYPE flowType = m_pState->GetCurGroupFlowType();
		if(curState != ES_DONE_WITH_BLOCK_MAP_KEY && curState != ES_DONE_WITH_FLOW_MAP_KEY)
			return m_pState->SetError(ErrorMsg::UNEXPECTED_VALUE_TOKEN);

		if(flowType == FT_BLOCK) {
			if(m_pState->CurrentlyInLongKey()) {
				m_stream << '\n';
				m_stream << IndentTo(m_pState->GetCurIndent());
				m_stream << ':';
				m_pState->RequireSoftSeparation();
			}
			m_pState->SwitchState(ES_WAITING_FOR_BLOCK_MAP_VALUE);
		} else if(flowType == FT_FLOW) {
			m_pState->SwitchState(ES_WAITING_FOR_FLOW_MAP_VALUE);
		} else
			assert(false);
	}
Example #10
0
	// GotoNextPreAtomicState
	// . Runs the state machine, emitting if necessary, and returns 'true' if done (i.e., ready to emit an atom)
	bool Emitter::GotoNextPreAtomicState()
	{
		if(!good())
			return true;
		
		unsigned curIndent = m_pState->GetCurIndent();
		
		EMITTER_STATE curState = m_pState->GetCurState();
		switch(curState) {
				// document-level
			case ES_WAITING_FOR_DOC:
				m_stream << "---";
				m_pState->RequireSeparation();
				m_pState->SwitchState(ES_WRITING_DOC);
				return true;
			case ES_WRITING_DOC:
				return true;
				
				// block sequence
			case ES_WAITING_FOR_BLOCK_SEQ_ENTRY:
				m_stream << IndentTo(curIndent) << "-";
				m_pState->RequireSeparation();
				m_pState->SwitchState(ES_WRITING_BLOCK_SEQ_ENTRY);
				return true;
			case ES_WRITING_BLOCK_SEQ_ENTRY:
				return true;
			case ES_DONE_WITH_BLOCK_SEQ_ENTRY:
				m_stream << '\n';
				m_pState->SwitchState(ES_WAITING_FOR_BLOCK_SEQ_ENTRY);
				return false;
				
				// flow sequence
			case ES_WAITING_FOR_FLOW_SEQ_ENTRY:
				m_pState->SwitchState(ES_WRITING_FLOW_SEQ_ENTRY);
				return true;
			case ES_WRITING_FLOW_SEQ_ENTRY:
				return true;
			case ES_DONE_WITH_FLOW_SEQ_ENTRY:
				m_stream << ',';
				m_pState->RequireSeparation();
				m_pState->SwitchState(ES_WAITING_FOR_FLOW_SEQ_ENTRY);
				return false;
				
				// block map
			case ES_WAITING_FOR_BLOCK_MAP_ENTRY:
				m_pState->SetError(ErrorMsg::EXPECTED_KEY_TOKEN);
				return true;
			case ES_WAITING_FOR_BLOCK_MAP_KEY:
				if(m_pState->CurrentlyInLongKey()) {
					m_stream << IndentTo(curIndent) << '?';
					m_pState->RequireSeparation();
				}
				m_pState->SwitchState(ES_WRITING_BLOCK_MAP_KEY);
				return true;
			case ES_WRITING_BLOCK_MAP_KEY:
				return true;
			case ES_DONE_WITH_BLOCK_MAP_KEY:
				m_pState->SetError(ErrorMsg::EXPECTED_VALUE_TOKEN);
				return true;
			case ES_WAITING_FOR_BLOCK_MAP_VALUE:
				if(m_pState->CurrentlyInLongKey())
					m_stream << IndentTo(curIndent);
				m_stream << ':';
				m_pState->RequireSeparation();
				m_pState->SwitchState(ES_WRITING_BLOCK_MAP_VALUE);
				return true;
			case ES_WRITING_BLOCK_MAP_VALUE:
				return true;
			case ES_DONE_WITH_BLOCK_MAP_VALUE:
				m_pState->SetError(ErrorMsg::EXPECTED_KEY_TOKEN);
				return true;
				
				// flow map
			case ES_WAITING_FOR_FLOW_MAP_ENTRY:
				m_pState->SetError(ErrorMsg::EXPECTED_KEY_TOKEN);
				return true;
			case ES_WAITING_FOR_FLOW_MAP_KEY:
				m_pState->SwitchState(ES_WRITING_FLOW_MAP_KEY);
				if(m_pState->CurrentlyInLongKey()) {
					EmitSeparationIfNecessary();
					m_stream << '?';
					m_pState->RequireSeparation();
				}
				return true;
			case ES_WRITING_FLOW_MAP_KEY:
				return true;
			case ES_DONE_WITH_FLOW_MAP_KEY:
				m_pState->SetError(ErrorMsg::EXPECTED_VALUE_TOKEN);
				return true;
			case ES_WAITING_FOR_FLOW_MAP_VALUE:
				m_stream << ':';
				m_pState->RequireSeparation();
				m_pState->SwitchState(ES_WRITING_FLOW_MAP_VALUE);
				return true;
			case ES_WRITING_FLOW_MAP_VALUE:
				return true;
			case ES_DONE_WITH_FLOW_MAP_VALUE:
				m_pState->SetError(ErrorMsg::EXPECTED_KEY_TOKEN);
				return true;
			default:
				assert(false);
		}

		assert(false);
		return true;
	}