private void HandleSetElementTokenReference(IIntSet elements, GrammarAST t)
{
int ttype;
if (grammar.type == GrammarType.Lexer)
{
// recursively will invoke this rule to match elements in target rule ref
IIntSet ruleSet = grammar.GetSetFromRule(this, t.Text);
if (ruleSet == null)
{
ErrorManager.GrammarError(ErrorManager.MSG_RULE_INVALID_SET, grammar, t.Token, t.Text);
}
else
{
elements.AddAll(ruleSet);
}
}
else
{
ttype = grammar.GetTokenType(t.Text);
if (elements.Contains(ttype))
{
ErrorManager.GrammarError(ErrorManager.MSG_DUPLICATE_SET_ENTRY, grammar, t.Token, t.Text);
}
elements.Add(ttype);
}
}
private void HandleSetElementStringLiteral(IIntSet elements, GrammarAST s)
{
int ttype = grammar.GetTokenType(s.Text);
if (elements.Contains(ttype))
ErrorManager.GrammarError(ErrorManager.MSG_DUPLICATE_SET_ENTRY, grammar, s.Token, s.Text);
elements.Add(ttype);
}
public virtual bool Matches(int atom)
{
if (label == atom)
{
return(true); // handle the single atom case efficiently
}
if (IsSet)
{
return(_labelSet.Contains(atom));
}
return(false);
}
private void HandleSetElementCharLiteral(IIntSet elements, GrammarAST c)
{
int ttype;
if (grammar.type == GrammarType.Lexer)
ttype = Grammar.GetCharValueFromGrammarCharLiteral(c.Text);
else
ttype = grammar.GetTokenType(c.Text);
if (elements.Contains(ttype))
ErrorManager.GrammarError(ErrorManager.MSG_DUPLICATE_SET_ENTRY, grammar, c.Token, c.Text);
elements.Add(ttype);
}
public virtual bool Matches(IIntSet set)
{
if (IsAtom)
{
return(set.Contains(Atom));
}
if (IsSet)
{
// matches if intersection non-nil
return(!Set.And(set).IsNil);
}
return(false);
}
private void HandleSetElementTokenReference(IIntSet elements, GrammarAST t)
{
int ttype;
if (grammar.type == GrammarType.Lexer)
{
// recursively will invoke this rule to match elements in target rule ref
IIntSet ruleSet = grammar.GetSetFromRule(this, t.Text);
if (ruleSet == null)
ErrorManager.GrammarError(ErrorManager.MSG_RULE_INVALID_SET, grammar, t.Token, t.Text);
else
elements.AddAll(ruleSet);
}
else
{
ttype = grammar.GetTokenType(t.Text);
if (elements.Contains(ttype))
ErrorManager.GrammarError(ErrorManager.MSG_DUPLICATE_SET_ENTRY, grammar, t.Token, t.Text);
elements.Add(ttype);
}
}
private void HandleSetElementStringLiteral(IIntSet elements, GrammarAST s)
{
int ttype = grammar.GetTokenType(s.Text);
if (elements.Contains(ttype))
ErrorManager.GrammarError(ErrorManager.MSG_DUPLICATE_SET_ENTRY, grammar, s.Token, s.Text);
elements.Add(ttype);
}
private void HandleSetElementCharLiteral(IIntSet elements, GrammarAST c)
{
int ttype;
if (grammar.type == GrammarType.Lexer)
ttype = Grammar.GetCharValueFromGrammarCharLiteral(c.Text);
else
ttype = grammar.GetTokenType(c.Text);
if (elements.Contains(ttype))
ErrorManager.GrammarError(ErrorManager.MSG_DUPLICATE_SET_ENTRY, grammar, c.Token, c.Text);
elements.Add(ttype);
}
public virtual bool Matches( IIntSet set )
{
if ( IsAtom )
{
return set.Contains( Atom );
}
if ( IsSet )
{
// matches if intersection non-nil
return !Set.And( set ).IsNil;
}
return false;
}
