public void RegisterPunctuation(params string[] symbols)
{
foreach (string symbol in symbols)
{
SymbolTerminal term = Symbol(symbol);
term.SetOption(TermOptions.IsPunctuation);
}
}
public Token(Terminal term, SourceLocation location, string text, object value)
{
SetTerminal(term);
this.AsSymbol = term as SymbolTerminal;
Location = location;
Text = text;
SetValue(value);
}
public void RegisterBracePair(string openBrace, string closeBrace)
{
SymbolTerminal openS = Symbol(openBrace);
SymbolTerminal closeS = Symbol(closeBrace);
openS.SetOption(TermOptions.IsOpenBrace);
openS.IsPairFor = closeS;
closeS.SetOption(TermOptions.IsCloseBrace);
closeS.IsPairFor = openS;
}
public void RegisterOperators(int precedence, Associativity associativity, params string[] opSymbols)
{
foreach (string op in opSymbols)
{
SymbolTerminal opSymbol = Symbol(op);
opSymbol.SetOption(TermOptions.IsOperator);
if (!UsePrecedenceRestricted)
{
opSymbol.SetOption(TermOptions.UsePrecedence);
}
opSymbol.Precedence = precedence;
opSymbol.Associativity = associativity;
}
}//method
public SymbolTerminal Symbol(string symbol, string name)
{
SymbolTerminal term;
if (SymbolTerms.TryGetValue(symbol, out term))
{
//update name if it was specified now and not before
if (string.IsNullOrEmpty(term.Name) && !string.IsNullOrEmpty(name))
{
term.Name = name;
}
return(term);
}
//create new term
if (!CaseSensitive)
{
symbol = symbol.ToLower();
}
string.Intern(symbol);
term = new SymbolTerminal(symbol, name);
SymbolTerms[symbol] = term;
return(term);
}
