protected override object VisitAnyCharacterBlock(AnyCharacterBlock block)
{
int length = _input.Length;
if (_position < length)
{
return new[] { _position + 1 };
}
return _errorResult;
}
public void GetPositionsFromAnyCharacterBlockTest()
{
string input = "\0";
var visitor1 = new CheckerRegexVisitor(0, input, null);
var block = new AnyCharacterBlock();
var positions1 = visitor1.GetPositions(block);
positions1.Should().BeEquivalentTo(new[] { 1 });
input = "a";
var visitor2 = new CheckerRegexVisitor(0, input, null);
var positions2 = visitor2.GetPositions(block);
positions2.Should().BeEquivalentTo(new[] { 1 });
}
public void ParseTest10()
{
var parser = new RegexParser();
string pattern = ".*a.*";
// Expected regular expression
var anyCharacterBlock = new AnyCharacterBlock();
var zeroOrOneBlock = new ZeroOrMoreBlock(anyCharacterBlock);
var textBlock = new TextBlock("a");
var groupBlock = new AndGroupBlock(new RegexBlock[] { zeroOrOneBlock, textBlock, zeroOrOneBlock });
var expected = new RegularExpression(groupBlock);
var actual = parser.Parse(pattern);
actual.ShouldBeEquivalentTo(expected, options => options.IncludingAllRuntimeProperties());
}
public void ParseTest10()
{
var parser = new RegexParser();
string pattern = ".*a.*";
// Expected regular expression
var anyCharacterBlock = new AnyCharacterBlock();
var zeroOrOneBlock = new ZeroOrMoreBlock(anyCharacterBlock);
var textBlock = new TextBlock("a");
var groupBlock = new AndGroupBlock(new RegexBlock[] { zeroOrOneBlock, textBlock, zeroOrOneBlock });
var expected = new RegularExpression(groupBlock);
var actual = parser.Parse(pattern);
Assert.IsTrue(expected.Equals(actual), "Pattern was parsed incorrectly");
}
public void GetLinesFromAnyCharacterBlockTest()
{
var input = "\0";
var visitor1 = new BuilderRegexVisitor(0, input, null, null);
var block = new AnyCharacterBlock();
var expectedLines = new List<string>();
for (char c = 'a'; c < 'z'; c++)
expectedLines.Add(c.ToString());
CheckVisitorResult(visitor1, block, expectedLines);
input = "a";
var visitor2 = new BuilderRegexVisitor(0, input, null, null);
CheckVisitorResult(visitor2, block, new[] { "a" });
}
public void ParseTest11()
{
var parser = new RegexParser();
string pattern = @".+(.)(.)(.)(.)\4\3\2\1.*";
// Expected regular expression
var anyCharacterBlock = new AnyCharacterBlock();
var oneOrMoreBlock = new OneOrMoreBlock(anyCharacterBlock);
var zeroOrOneBlock = new ZeroOrMoreBlock(anyCharacterBlock);
var andGroupBlock = new AndGroupBlock(new [] { anyCharacterBlock });
var b4 = new BackreferenceBlock(4);
var b3 = new BackreferenceBlock(3);
var b2 = new BackreferenceBlock(2);
var b1 = new BackreferenceBlock(1);
var groupBlock = new AndGroupBlock(new RegexBlock[] { oneOrMoreBlock, andGroupBlock, andGroupBlock, andGroupBlock, andGroupBlock, b4, b3, b2, b1, zeroOrOneBlock });
var expected = new RegularExpression(groupBlock);
var actual = parser.Parse(pattern);
actual.ShouldBeEquivalentTo(expected, options => options.IncludingAllRuntimeProperties());
}
public void ParseTest11()
{
var parser = new RegexParser();
string pattern = @".+(.)(.)(.)(.)\4\3\2\1.*";
// Expected regular expression
var anyCharacterBlock = new AnyCharacterBlock();
var oneOrMoreBlock = new OneOrMoreBlock(anyCharacterBlock);
var zeroOrOneBlock = new ZeroOrMoreBlock(anyCharacterBlock);
var andGroupBlock = new AndGroupBlock(new [] { anyCharacterBlock });
var b4 = new BackreferenceBlock(4);
var b3 = new BackreferenceBlock(3);
var b2 = new BackreferenceBlock(2);
var b1 = new BackreferenceBlock(1);
var groupBlock = new AndGroupBlock(new RegexBlock[] { oneOrMoreBlock, andGroupBlock, andGroupBlock, andGroupBlock, andGroupBlock, b4, b3, b2, b1, zeroOrOneBlock });
var expected = new RegularExpression(groupBlock);
var actual = parser.Parse(pattern);
Assert.IsTrue(expected.Equals(actual), "Pattern was parsed incorrectly");
}
protected virtual object VisitAnyCharacterBlock(AnyCharacterBlock block)
{
return block;
}
