public void ConsumesOneOccurenceOfPatternInText()
{
var a = new Many(new Character('a'));
Assert.True(a.Match("abc").Success());
Assert.Equal("bc", a.Match("abc").RemainingText());
}
public void DoesNotConsumeAnyCharacterBecauseNoneIsInRange()
{
var digits = new Many(new Range('0', '9'));
Assert.True(digits.Match("ab").Success());
Assert.Equal("ab", digits.Match("ab").RemainingText());
}
public void ConsumesMultipleCharactersInRange()
{
var digits = new Many(new Range('0', '9'));
Assert.True(digits.Match("12345ab123").Success());
Assert.Equal("ab123", digits.Match("12345ab123").RemainingText());
}
public void DoesNotConsumePatternInNullText()
{
var a = new Many(new Character('a'));
Assert.True(a.Match(null).Success());
Assert.Null(a.Match(null).RemainingText());
}
public void DoesNotConsumePatternInEmptyText()
{
var a = new Many(new Character('a'));
Assert.True(a.Match("").Success());
Assert.Equal("", a.Match("").RemainingText());
}
public void DoesNotConsumeEmptyTextWithComplexPattern()
{
var digits = new OneOrMore(new Range('0', '9'));
var whitespace = new Many(new Any(" \r\n\t"));
var separator = new Sequence(whitespace, new Character(';'), whitespace);
var list = new List(digits, separator);
Assert.True(list.Match("").Success());
Assert.Equal("", list.Match("").RemainingText());
}