public MatchInfo Evaluate(string text)
{
EnqueueTokens(_Tokens);
_text = text;
IGlobToken token = null;
using (_Reader = new GlobStringReader(text))
{
while (_TokenQueue.Any())
{
token = _TokenQueue.Dequeue();
token.Accept(this);
if (!Success)
{
return(FailedResult(token));
}
}
// if all tokens matched but still more text then fail!
if (_Reader.Peek() != -1)
{
return(FailedResult(null));
}
// Success.
return(SuccessfulResult());
}
}
private MatchInfo FailedResult(IGlobToken token)
{
return(new MatchInfo()
{
Matches = MatchedTokens.ToArray(),
Missed = token,
Success = false,
UnmatchedText = _Reader.ReadToEnd()
});
}
public void Visit(WildcardDirectoryToken token)
{
// if no more tokens then just return as * matches the rest of the segment, and therefore no more matching.
int remainingCount = _Tokens.Length - (_currentTokenIndex + 1);
// Add a nested CompositeTokenEvaluator, passing all of our remaining tokens to it.
IGlobToken[] remaining = new IGlobToken[remainingCount];
Array.Copy(_Tokens, _currentTokenIndex + 1, remaining, 0, remainingCount);
AddEvaluator(_evaluatorFactory.CreateTokenEvaluator(token, new CompositeTokenEvaluator(remaining, _evaluatorFactory)));
_finished = true; // signlas to stop visiting any further tokens as we have offloaded them all to the nested evaluator.
}
void IGlobTokenVisitor.Visit(WildcardDirectoryToken token)
{
// if no more tokens then just return as * matches the rest of the segment, and therefore no more matching.
int remainingCount = _tokens.Length - (_currentTokenIndex + 1);
// Add a nested CompositeTokenEvaluator, passing all of our remaining tokens to it.
IGlobToken[] remaining = new IGlobToken[remainingCount];
Array.Copy(_tokens, _currentTokenIndex + 1, remaining, 0, remainingCount);
var subEvaluator = new WildcardDirectoryTokenMatchGenerator(token, _random, new CompositeTokenMatchGenerator(_random, remaining));
AddMatchGenerator(subEvaluator);
_finished = true; // signlas to stop visiting any further tokens as we have offloaded them all to the nested evaluator.
}
/// <summary>
/// Parses a token for a range or list globbing expression.
/// </summary>
private IGlobToken ReadRangeOrListToken(GlobStringReader reader)
{
bool isNegated = false;
bool isNumberRange = false;
bool isLetterRange = false;
bool isCharList = false;
if (reader.PeekChar() == GlobStringReader.ExclamationMarkChar)
{
isNegated = true;
reader.Read();
}
var nextChar = reader.PeekChar();
if (Char.IsLetterOrDigit(nextChar))
{
reader.Read();
nextChar = reader.PeekChar();
if (nextChar == GlobStringReader.DashChar)
{
if (Char.IsLetter(reader.CurrentChar))
{
isLetterRange = true;
}
else
{
isNumberRange = true;
}
// throw new ArgumentOutOfRangeException("Range expressions must either be a letter range, i.e [a-z] or a number range i.e [0-9]");
}
else
{
isCharList = true;
}
AcceptCurrentChar(reader);
}
else
{
isCharList = true;
reader.Read();
AcceptCurrentChar(reader);
}
if (isLetterRange || isNumberRange)
{
// skip over the dash char
reader.ReadChar();
}
while (reader.ReadChar())
{
// ReadCharacter(CharacterType.BracketedText, CurrentChar);
if (reader.IsEndOfRangeOrList)
{
var peekChar = reader.PeekChar();
// Close brackets within brackets are escaped with another
// Close bracket. e.g. [a]] matches a[
if (peekChar == GlobStringReader.CloseBracketChar)
{
AcceptCurrentChar(reader);
// Read();
//ReadCharacter(CharacterType.BracketedText, CurrentChar);
}
else
{
break;
}
}
else
{
AcceptCurrentChar(reader);
}
}
// construct token
IGlobToken result = null;
var value = GetBufferAndReset();
if (isCharList)
{
result = new CharacterListToken(value.ToCharArray(), isNegated);
}
else if (isLetterRange)
{
var start = value[0];
var end = value[1];
result = new LetterRangeToken(start, end, isNegated);
}
else if (isNumberRange)
{
var start = value[0]; // int.Parse(value[0].ToString());
var end = value[1]; // int.Parse(value[1].ToString());
result = new NumberRangeToken(start, end, isNegated);
}
return(result);
}
