private static bool Matches(string pattern, string input)
{
var parser = new RegexParser();
RegularExpression regex = parser.Parse(pattern);
var checker = new Checker(input);
return checker.Check(regex);
}
public void CheckTest3()
{
var input = "\0\0\0";
string regexPattern = "[^c]*";
var parser = new RegexParser();
var regex = parser.Parse(regexPattern);
var checker = new Checker(input);
Assert.IsTrue(checker.Check(regex));
}
public void GetPositionsFromOrGroupBlockTest()
{
int patternLength = 2;
var pattern = new string('\0', patternLength);
var builder = new Checker(pattern);
var aBlock = new TextBlock("a");
var bBlock = new TextBlock("bb");
var cBlock = new TextBlock("ccc");
var orGroupBlock = new OrGroupBlock(new RegexBlock[] { aBlock, bBlock, cBlock });
var positions = builder.GetPositionsFromOrGroupBlock(0, orGroupBlock).ToList();
CollectionAssert.AreEquivalent(new[] { 1, 2 }, positions);
}
public void GePostionsFromZeroOrMoreBlockTest()
{
var pattern = "a\0\0\0";
var builder = new Checker(pattern);
var textBlock = new TextBlock("a");
var zeroOrMoreBlock = new ZeroOrMoreBlock(textBlock);
var positions = builder.GetPositionsFromZeroOrMoreBlock(0, zeroOrMoreBlock).ToList();
CollectionAssert.AreEquivalent(Enumerable.Range(0, 5).ToArray(), positions);
var aBlock = new TextBlock("a");
var bBlock = new TextBlock("b");
var orGroupBlock = new OrGroupBlock(new[] { aBlock, bBlock });
zeroOrMoreBlock = new ZeroOrMoreBlock(orGroupBlock);
positions = builder.GetPositionsFromZeroOrMoreBlock(0, zeroOrMoreBlock).ToList();
Assert.AreEqual(16, positions.Count);
}
public void GetPositionsFromAndGroupBlockTest()
{
int patternLength = 4;
var pattern = new string('\0', patternLength);
var builder = new Checker(pattern);
// (a|aa)(b|bb)
var aBlock = new TextBlock("a");
var aaBlock = new TextBlock("aa");
var bBlock = new TextBlock("b");
var bbBlock = new TextBlock("bb");
var orGroupBlock1 = new OrGroupBlock(new RegexBlock[] { aBlock, aaBlock });
var orGroupBlock2 = new OrGroupBlock(new RegexBlock [] { bBlock, bbBlock });
var andGroupBlock = new AndGroupBlock(new[] { orGroupBlock1, orGroupBlock2 });
var positions = builder.GetPositionsFromAndGroupBlock(0, andGroupBlock).ToList();
CollectionAssert.AreEquivalent(new[] { 2, 3, 3, 4 }, positions);
}
public void GetPositionsFromOneOrMoreBlockTest()
{
int patternLength = 4;
var pattern = new string('\0', patternLength);
var builder = new Checker(pattern);
var textBlock = new TextBlock("a");
var oneOrMoreBlock = new OneOrMoreBlock(textBlock);
// a+
var positions = builder.GetPositionsFromOneOrMoreBlock(0, oneOrMoreBlock).ToList();
CollectionAssert.AreEquivalent(Enumerable.Range(1, patternLength).ToArray(), positions);
// (a|b)+
var aBlock = new TextBlock("a");
var bBlock = new TextBlock("b");
var orGroupBlock = new OrGroupBlock(new[] { aBlock, bBlock });
oneOrMoreBlock = new OneOrMoreBlock(orGroupBlock);
positions = builder.GetPositionsFromOneOrMoreBlock(0, oneOrMoreBlock).ToList();
Assert.AreEqual(30, positions.Count);
}
private bool CheckQuestions(Crossword crossword, IEnumerable<CrosswordQuestion> questions)
{
foreach (var question in questions)
{
var line = crossword.GetLineForQuestion(question);
var checker = new Checker(line);
if (!checker.Check(question.Expression))
return false;
}
return true;
}
public void GetPositionsFromZeroOrOneBlockTest()
{
int patternLength = 3;
var pattern = new string('\0', patternLength);
var builder = new Checker(pattern);
var textBlock = new TextBlock("a");
var zeroOrOneBlock = new ZeroOrOneBlock(textBlock);
var positions = builder.GetPositionsFromZeroOrOneBlock(0, zeroOrOneBlock).ToList();
CollectionAssert.AreEquivalent(new[] { 0, 1 }, positions);
}