private LanguageRule getRuleByTokenAndNonTerminal(NonTerminal terminal, Token token)
{
IEnumerable <LanguageRule> terminalRules = languageRules.Where(lR => lR.Symbol == terminal);
LanguageRule workingNowRule = null;
foreach (LanguageRule rule in terminalRules)
{
if (rule.CanMatchRule(token, this))
{
workingNowRule = rule;
}
}
return(workingNowRule);
}
public void Match(NonTerminal terminal, ref Queue <Token> tokens)
{
LanguageRule workingNowRule = this.getRuleByTokenAndNonTerminal(terminal, tokens.Peek());
workingNowRule.MatchRule(ref tokens, this);
}
public bool CanMatch(NonTerminal terminal, Token token)
{
LanguageRule workingNowRule = getRuleByTokenAndNonTerminal(terminal, token);
return(workingNowRule != null);
}
public ProcessStepper(ILanguage language)
{
this.startRule = language.StartRule;
this.rules = language.Rules;
}
