/// <summary>Adds an new LRAction to this table.</summary>
/// <param name="p_symbol">The Symbol.</param>
/// <param name="p_action">The Action.</param>
/// <param name="p_value">The value.</param>
public void AddItem(Symbol p_symbol, Action p_action, int p_value)
{
LRAction item = new LRAction();
item.Symbol = p_symbol;
item.Action = p_action;
item.Value = p_value;
m_members.Add(item);
}
/* constructor */
/// Creates a new Rule.
internal Rule(int p_tableIndex, Symbol p_head)
{
m_ruleSymbols = new ArrayList();
m_tableIndex = p_tableIndex;
m_ruleNT = p_head;
}
// equals ?
///
internal void AddItem(Symbol p_symbol)
{
m_ruleSymbols.Add(p_symbol);
}
private void Reset()
{
foreach (Symbol symbol in m_symbols)
{
if (symbol.Kind == SymbolType.Error)
m_errorSymbol = symbol;
else if (symbol.Kind == SymbolType.End)
m_endSymbol = symbol;
}
m_haveReduction = false;
m_LalrState = m_initLalrState;
m_lineNumber = 1;
m_commentLevel = 0;
m_inputTokens.Clear();
m_outputTokens.Clear();
m_tempStack.Clear();
}
private void LoadTables(GrammarReader reader)
{
Object obj; Int16 index;
while (reader.MoveNext())
{
byte id = (byte)reader.RetrieveNext();
switch ((RecordId)id)
{
case RecordId.Parameters:
m_parameters["Name"] = (String)reader.RetrieveNext();
m_parameters["Version"] = (String)reader.RetrieveNext();
m_parameters["Author"] = (String)reader.RetrieveNext();
m_parameters["About"] = (String)reader.RetrieveNext();
m_caseSensitive = (Boolean)reader.RetrieveNext();
m_startSymbol = (Int16)reader.RetrieveNext();
break;
case RecordId.TableCounts:
m_symbols = new Symbol[(Int16)reader.RetrieveNext()];
m_charsets = new String[(Int16)reader.RetrieveNext()];
m_rules = new Rule[(Int16)reader.RetrieveNext()];
m_DfaStates = new FAState[(Int16)reader.RetrieveNext()];
m_LalrTables = new LRActionTable[(Int16)reader.RetrieveNext()];
m_initialized = true;
break;
case RecordId.Initial:
m_initDfaState = (Int16)reader.RetrieveNext();
m_initLalrState = (Int16)reader.RetrieveNext();
break;
case RecordId.Symbols:
index = (Int16)reader.RetrieveNext();
String name = (String)reader.RetrieveNext();
SymbolType kind = (SymbolType)(Int16)reader.RetrieveNext();
Symbol symbol = new Symbol(index, name, kind);
AddSymbol(symbol);
break;
case RecordId.CharSets:
index = (Int16)reader.RetrieveNext();
String charset = (String)reader.RetrieveNext();
AddCharset(index, charset);
break;
case RecordId.Rules:
index = (Int16)reader.RetrieveNext();
Symbol head = m_symbols[(Int16)reader.RetrieveNext()];
Rule rule = new Rule(index, head);
reader.RetrieveNext(); // reserved
while ((obj = reader.RetrieveNext()) != null)
rule.AddItem(m_symbols[(Int16)obj]);
AddRule(rule);
break;
case RecordId.DFAStates:
FAState fastate = new FAState();
index = (Int16)reader.RetrieveNext();
if ((bool)reader.RetrieveNext())
fastate.AcceptSymbol = (Int16)reader.RetrieveNext();
else
reader.RetrieveNext();
reader.RetrieveNext(); // reserverd
while (! reader.RetrieveDone())
{
Int16 ci = (Int16)reader.RetrieveNext();
Int16 ti = (Int16)reader.RetrieveNext();
reader.RetrieveNext(); // reserved
fastate.AddEdge(m_charsets[ci], ti);
}
AddDfaState(index, fastate);
break;
case RecordId.LRTables:
LRActionTable table = new LRActionTable();
index = (Int16)reader.RetrieveNext();
reader.RetrieveNext(); // reserverd
while (! reader.RetrieveDone())
{
Int16 sid = (Int16)reader.RetrieveNext();
Int16 action = (Int16)reader.RetrieveNext();
Int16 tid = (Int16)reader.RetrieveNext();
reader.RetrieveNext(); // reserved
table.AddItem(m_symbols[sid], (Action)action, tid);
}
AddLalrTable(index, table);
break;
case RecordId.Comment:
Console.WriteLine("Comment record encountered");
break;
default:
throw new ParserException("Wrong id for record");
}
}
}
private void AddSymbol(Symbol p_symbol)
{
if (! m_initialized)
throw new ParserException("Table sizes not initialized");
int index = p_symbol.TableIndex;
m_symbols[index] = p_symbol;
}
///
internal protected void CopyData(Symbol p_symbol)
{
m_name = p_symbol.Name;
m_kind = p_symbol.Kind;
m_tableIndex = p_symbol.TableIndex;
}
/* public methods */
///
internal void SetParent(Symbol p_symbol)
{
CopyData(p_symbol);
}
///
internal Token(Symbol p_symbol)
: this()
{
SetParent(p_symbol);
}
