protected virtual void HandleOptionSetArg(string arg)
{
int eq = arg.IndexOf('=');
if (eq > 0 && arg.Length > 3)
{
string option = arg.Substring("-D".Length, eq - "-D".Length);
string value = arg.Substring(eq + 1);
if (value.Length == 0)
{
errMgr.ToolError(ErrorType.BAD_OPTION_SET_SYNTAX, arg);
return;
}
if (Grammar.parserOptions.Contains(option) ||
Grammar.lexerOptions.Contains(option))
{
if (grammarOptions == null)
{
grammarOptions = new Dictionary <string, string>();
}
grammarOptions[option] = value;
}
else
{
errMgr.GrammarError(ErrorType.ILLEGAL_OPTION,
null,
null,
option);
}
}
else
{
errMgr.ToolError(ErrorType.BAD_OPTION_SET_SYNTAX, arg);
}
}
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 StateCluster HandleNotAtomCharLiteral(GrammarAST notNode, GrammarAST charLiteral)
{
int ttype = 0;
if (grammar.type == GrammarType.Lexer)
{
ttype = Grammar.GetCharValueFromGrammarCharLiteral(charLiteral.Text);
}
else
{
ttype = grammar.GetTokenType(charLiteral.Text);
}
IIntSet notAtom = grammar.Complement(ttype);
if (notAtom.IsNil)
{
ErrorManager.GrammarError(
ErrorManager.MSG_EMPTY_COMPLEMENT,
grammar,
charLiteral.Token,
charLiteral.Text);
}
return(factory.BuildSet(notAtom, notNode));
}
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);
}
private void HandleRuleScopeSpecUses(Rule r, GrammarAST uses)
{
if (grammar.GetGlobalScope(uses.Text) == null)
{
ErrorManager.GrammarError(ErrorManager.MSG_UNKNOWN_DYNAMIC_SCOPE, grammar, uses.Token, uses.Text);
}
else
{
if (r.UseScopes == null)
{
r.UseScopes = new List <string>();
}
r.UseScopes.Add(uses.Text);
}
}
private StateCluster HandleNotAtomSet(GrammarAST notNode, GrammarAST setNode)
{
//IIntSet notSet = grammar.Complement(stNode.SetValue);
// let code generator complement the sets
IIntSet s = setNode.SetValue;
setNode.SetValue = s;
// let code gen do the complement again; here we compute
// for NFA construction
s = grammar.Complement(s);
if (s.IsNil)
{
ErrorManager.GrammarError(
ErrorManager.MSG_EMPTY_COMPLEMENT,
grammar,
notNode.Token);
}
return factory.BuildSet(s, notNode);
}
private StateCluster HandleNotAtomTokenReference(GrammarAST notNode, GrammarAST tokenReference)
{
int ttype = 0;
IIntSet notAtom = null;
if (grammar.type == GrammarType.Lexer)
{
notAtom = grammar.GetSetFromRule(this, tokenReference.Text);
if (notAtom == null)
{
ErrorManager.GrammarError(
ErrorManager.MSG_RULE_INVALID_SET,
grammar,
tokenReference.Token,
tokenReference.Text);
}
else
{
notAtom = grammar.Complement(notAtom);
}
}
else
{
ttype = grammar.GetTokenType(tokenReference.Text);
notAtom = grammar.Complement(ttype);
}
if (notAtom == null || notAtom.IsNil)
{
ErrorManager.GrammarError(
ErrorManager.MSG_EMPTY_COMPLEMENT,
grammar,
tokenReference.Token,
tokenReference.Text);
}
return(factory.BuildSet(notAtom, notNode));
}
// LISTENER METHODS
// $x.y
public virtual void QualifiedAttr(string expr, IToken x, IToken y)
{
if (g.IsLexer())
{
errMgr.GrammarError(ErrorType.ATTRIBUTE_IN_LEXER_ACTION,
g.fileName, x, x.Text + "." + y.Text, expr);
return;
}
if (node.resolver.ResolveToAttribute(x.Text, node) != null)
{
// must be a member access to a predefined attribute like $ctx.foo
Attr(expr, x);
return;
}
if (node.resolver.ResolveToAttribute(x.Text, y.Text, node) == null)
{
Rule rref = IsolatedRuleRef(x.Text);
if (rref != null)
{
if (rref.args != null && rref.args.Get(y.Text) != null)
{
g.tool.errMgr.GrammarError(ErrorType.INVALID_RULE_PARAMETER_REF,
g.fileName, y, y.Text, rref.name, expr);
}
else
{
errMgr.GrammarError(ErrorType.UNKNOWN_RULE_ATTRIBUTE,
g.fileName, y, y.Text, rref.name, expr);
}
}
else if (!node.resolver.ResolvesToAttributeDict(x.Text, node))
{
errMgr.GrammarError(ErrorType.UNKNOWN_SIMPLE_ATTRIBUTE,
g.fileName, x, x.Text, expr);
}
else
{
errMgr.GrammarError(ErrorType.UNKNOWN_ATTRIBUTE_IN_SCOPE,
g.fileName, y, y.Text, expr);
}
}
}
public virtual void CheckActionRedefinitions(IList <GrammarAST> actions)
{
if (actions == null)
{
return;
}
string scope = g.GetDefaultActionScope();
string name;
GrammarAST nameNode;
foreach (GrammarAST ampersandAST in actions)
{
nameNode = (GrammarAST)ampersandAST.GetChild(0);
if (ampersandAST.ChildCount == 2)
{
name = nameNode.Text;
}
else
{
scope = nameNode.Text;
name = ampersandAST.GetChild(1).Text;
}
ISet <string> scopeActions;
if (!actionScopeToActionNames.TryGetValue(scope, out scopeActions) || scopeActions == null)
{
// init scope
scopeActions = new HashSet <string>();
actionScopeToActionNames[scope] = scopeActions;
}
if (!scopeActions.Contains(name))
{
scopeActions.Add(name);
}
else
{
errMgr.GrammarError(ErrorType.ACTION_REDEFINITION,
g.fileName, nameNode.Token, name);
}
}
}