public Grammar()
{
Options = RuntimeOptions.Default;
Productions = new ProductionCollection(this);
Symbols = new SymbolCollection(this);
Conditions = new ConditionCollection(this);
Matchers = new MatcherCollection(this);
Mergers = new MergerCollection(this);
Contexts = new ForeignContextCollection(this);
Reports = new ReportCollection();
GlobalContextProvider = new ForeignContextProvider { Owner = this.Contexts };
Joint = new Joint();
for (int i = PredefinedTokens.Count; i != 0; --i)
{
Symbols.Add(null); // stub
}
Symbols[PredefinedTokens.Propagated] = new Symbol("#");
Symbols[PredefinedTokens.Epsilon] = new Symbol("$eps");
Symbols[PredefinedTokens.AugmentedStart] = new Symbol("$start");
Symbols[PredefinedTokens.Eoi] = new Symbol("$")
{
Categories = SymbolCategory.DoNotInsert
| SymbolCategory.DoNotDelete
};
Symbols[PredefinedTokens.Error] = new Symbol("$error");
AugmentedProduction = Productions.Define((Symbol)Symbols[PredefinedTokens.AugmentedStart], new Symbol[] { null });
}
private static Matcher.NameAndValue CreateRemovalMatcher(FilterMode filterMode, MatcherCollection except)
{
Matcher.NameAndValue shouldRemove = null;
switch (filterMode)
{
case FilterMode.IncludeUnknownCommands:
// To include unknown commands, we remove blacklisted
// and 'except' commands.
shouldRemove = delegate(string name, string value)
{
return DefaultBlacklist.IsMatch(name, value) ||
except.IsMatch(name, value);
};
break;
case FilterMode.ExcludeUnknownCommands:
// To exclude unknown commands, we *keep* whitelisted
// and 'except' commands.
shouldRemove = delegate(string name, string value)
{
return !(DefaultWhitelist.IsMatch(name, value) ||
except.IsMatch(name, value));
};
break;
case FilterMode.IncludeAllCommands:
// To include all commands, we remove any of the 'except'
// commands.
shouldRemove = delegate(string name, string value)
{
return except.IsMatch(name, value);
};
break;
case FilterMode.ExcludeAllCommands:
// To exclude all commands, we only keep the 'except'
// commands.
shouldRemove = delegate(string name, string value)
{
return !except.IsMatch(name, value);
};
break;
}
return shouldRemove;
}
private static Matcher.NameAndValue CreateRemovalMatcher(FilterMode filterMode, MatcherCollection except)
{
Matcher.NameAndValue shouldRemove = null;
switch (filterMode)
{
case FilterMode.IncludeUnknownCommands:
// To include unknown commands, we remove blacklisted
// and 'except' commands.
shouldRemove = delegate(string name, string value)
{
return(DefaultBlacklist.IsMatch(name, value) ||
except.IsMatch(name, value));
};
break;
case FilterMode.ExcludeUnknownCommands:
// To exclude unknown commands, we *keep* whitelisted
// and 'except' commands.
shouldRemove = delegate(string name, string value)
{
return(!(DefaultWhitelist.IsMatch(name, value) ||
except.IsMatch(name, value)));
};
break;
case FilterMode.IncludeAllCommands:
// To include all commands, we remove any of the 'except'
// commands.
shouldRemove = delegate(string name, string value)
{
return(except.IsMatch(name, value));
};
break;
case FilterMode.ExcludeAllCommands:
// To exclude all commands, we only keep the 'except'
// commands.
shouldRemove = delegate(string name, string value)
{
return(!except.IsMatch(name, value));
};
break;
}
return(shouldRemove);
}
