public void RegexToStringShouldCreateConcatenationString()
{
var regex = new Regex(
false,
new RegexExpressionTerm(
new RegexTermFactor(
new RegexFactor(
new RegexAtomCharacter(
new RegexCharacter('a'))),
new RegexTerm(
new RegexFactor(
new RegexAtomCharacter(
new RegexCharacter('b')))))),
false);
Assert.AreEqual("ab", regex.ToString());
}
public void RegexToStringShouldCreateRangeString()
{
var regex = new Regex(
false,
new RegexExpressionTerm(
new RegexTerm(
new RegexFactor(
new RegexAtomSet(
new RegexSet(
false,
new RegexCharacterClass(
new RegexCharacterRange(
new RegexCharacterClassCharacter('a'),
new RegexCharacterClassCharacter('z')))))))),
false);
Assert.AreEqual("[a-z]", regex.ToString());
}
public override void Visit(IInternalTreeNode node)
{
if (RegexGrammar.Regex == node.Symbol.Value)
Regex = VisitRegexNode(node);
}
public IDfaState Compile(Regex regex)
{
var nfa = _regexToNfa.Transform(regex);
var dfa = _nfaToDfa.Transform(nfa);
return dfa;
}
public INfa Transform(Regex regex)
{
return Expression(regex.Expression);
}