public static GrammarRuleAlternative makeSequence(List <GrammarRuleAlternative> sequenceContent)
{
GrammarRuleAlternative result = new GrammarRuleAlternative(EnumType.SEQUENCE);
result.sequenceContent = sequenceContent;
return(result);
}
public static GrammarRuleAlternative makeBrace(List <GrammarRuleAlternative> braceContent)
{
GrammarRuleAlternative result = new GrammarRuleAlternative(EnumType.BRACE);
result.braceContent = braceContent;
return(result);
}
public static GrammarRuleAlternative makeTerminal(ProgramTreeElementType.EnumType terminalType)
{
GrammarRuleAlternative result = new GrammarRuleAlternative(EnumType.TERMINAL);
result.terminalType = terminalType;
return(result);
}
public static GrammarRuleAlternative makeVariable(uint variable)
{
GrammarRuleAlternative result = new GrammarRuleAlternative(EnumType.VARIABLE);
result.variable = variable;
return(result);
}
protected void fillRules()
{
rules = new List <GrammarRule>();
rules.Add(new GrammarRule(
GrammarRuleAlternative.makeVariable((uint)EnumVariables.S),
new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeBrace(new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeVariable((uint)EnumVariables.T),
}),
GrammarRuleAlternative.makeBrace(new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeVariable((uint)EnumVariables.OPA),
GrammarRuleAlternative.makeVariable((uint)EnumVariables.A),
}),
GrammarRuleAlternative.makeBrace(new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeTerminal(ProgramTreeElementType.EnumType.REPEAT),
GrammarRuleAlternative.makeVariable((uint)EnumVariables.S),
GrammarRuleAlternative.makeVariable((uint)EnumVariables.S),
}),
}
));
rules.Add(new GrammarRule(
GrammarRuleAlternative.makeVariable((uint)EnumVariables.OPA),
new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeTerminal(ProgramTreeElementType.EnumType.ADD),
GrammarRuleAlternative.makeTerminal(ProgramTreeElementType.EnumType.SUB),
GrammarRuleAlternative.makeTerminal(ProgramTreeElementType.EnumType.MUL),
}
));
rules.Add(new GrammarRule(
GrammarRuleAlternative.makeVariable((uint)EnumVariables.A),
new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeVariable((uint)EnumVariables.T),
GrammarRuleAlternative.makeSequence(new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeVariable((uint)EnumVariables.T),
GrammarRuleAlternative.makeVariable((uint)EnumVariables.A),
}),
}
));
rules.Add(new GrammarRule(
GrammarRuleAlternative.makeVariable((uint)EnumVariables.T),
new List <GrammarRuleAlternative>()
{
GrammarRuleAlternative.makeTerminal(ProgramTreeElementType.EnumType.A),
GrammarRuleAlternative.makeTerminal(ProgramTreeElementType.EnumType.B),
}
));
}
public GrammarRule(GrammarRuleAlternative leftSide, List <GrammarRuleAlternative> rightSideAlternatives)
{
this.leftSide = leftSide;
this.rightSideAlternatives = rightSideAlternatives;
}