// tokenCategories - List of pair (Token, Regex for thie Token)
public Lexer(
IEnumerable <KeyValuePair <TLabel, string> > tokenCategories,
TLabel eof,
TLabel noneValue,
Func <IEnumerable <TLabel>, TLabel> conflictSolver)
{
this.eof = eof;
this.noneValue = noneValue;
var converter = new StringToRegexConverterFactory().CreateConverter();
Dictionary <TLabel, IDfa <bool, char> > multipleDfa = tokenCategories.ToDictionary(
x => x.Key,
x =>
{
Regex <char> regex = converter.Convert(x.Value);
INfa <char> nfaPre = RegexToNfaConverter <char> .Convert(regex);
INfa <char> nfa = ConcreteNfa <char> .CreateFromNfa(nfaPre);
IDfa <bool, char> dfa = NfaToDfaConverter <char> .Convert(nfa);
return(DfaMinimizer <bool, char> .Minimize(dfa));
});
var mergedDfa = DfaMerger <TLabel, char> .Merge(multipleDfa, conflictSolver);
this.minimalizedDfa = DfaMinimizer <TLabel, char> .Minimize(mergedDfa);
}
public StringToRegexConverterTests()
{
var factory = new StringToRegexConverterFactory();
this.converter = factory.CreateConverter();
}
