public void RegexMatches_StartOrEndForEmpty()
{
IExpression<char> expression =
new AlternationExpression<char>(
new StartExpression<char> (),
new EndExpression<char> ());
string regex = @"^|$";
expression.AssertMatches ("", regex);
}
public void RegexMatches_AAorAB()
{
IExpression<char> expression =
new AlternationExpression<char>(
new ListExpression<char> (
new CharClass ('A'),
new CharClass ('A')),
new ListExpression<char> (
new CharClass ('A'),
new CharClass ('B'))
);
string regex = @"(AA)|(AB)";
expression.AssertMatches ("AAABAB", regex);
expression.AssertMatches ("00000000000000AAABAB000000", regex);
}