private void ReadFile(Stream stream) { try { Reset(); this.stream = stream; ReaderBin reader = new ReaderBin(stream); string header = ""; try { header = reader.ReadUnicodeString(); if (!header.StartsWith("GOLD")) { throw new CGTStructureException("El encabezado del archivo es inválido"); } } catch (EndOfStreamException e) { throw new CGTStructureException("El encabezado del archivo es inválido", e); } RecordCollection records = new RecordCollection(); while (!(stream.Position == stream.Length)) { records.Add(ReadRecord(reader)); } structure = new CGTStructure(header, records); content = new CGTContent(structure); dfaStates = CreateDFAStates(content); parserStates = CreateParserStates(content); } finally { stream.Close(); } }
private DFA.StateCollection CreateDFAStates(CGTContent content) { symbols = CreateSymbols(content); DFA.StateCollection states = new DFA.StateCollection(); foreach (DFAStateRecord stateRecord in content.DFAStateTable) { DFA.State state; if (stateRecord.AcceptState) { Symbol symbol = symbols[stateRecord.AcceptIndex]; state = new DFA.EndState(stateRecord.Index, (SymbolTerminal)symbol); } else { state = new DFA.State(stateRecord.Index); } states.Add(state); } foreach (DFAStateRecord stateRecord in content.DFAStateTable) { foreach (EdgeSubRecord edgeRecord in stateRecord.EdgeSubRecords) { DFA.State source = states[stateRecord.Index]; DFA.State target = states[edgeRecord.TargetIndex]; CharacterSetRecord charsetRec = content.CharacterSetTable[edgeRecord.CharacterSetIndex]; DFA.Transition transition = new DFA.Transition(target, charsetRec.Characters); source.Transitions.Add(transition); } } return(states); }
private void Reset() { stream = null; structure = null; content = null; dfaStates = null; parserStates = null; symbols = null; rules = null; }