.NET Regular expressions on bytes instead of chars

Question

I\'m trying to do some parsing that will be easier using regular expressions.

The input is an array (or enumeration) of bytes.

I don\'t want to convert the b

Answer 1

As an alternative to using unsafe, just consider writing a simple, recursive comparer like:

static bool Evaluate(byte[] data, byte[] sequence, int dataIndex=0, int sequenceIndex=0)
{
       if (sequence[sequenceIndex] == data[dataIndex])
       {
           if (sequenceIndex == sequence.Length - 1)
               return true;
           else if (dataIndex == data.Length - 1)
               return false;
           else
               return Evaluate(data, sequence, dataIndex + 1, sequenceIndex + 1);
       }
       else
       {
           if (dataIndex < data.Length - 1)
               return Evaluate(data, sequence, dataIndex+1, 0);
           else
               return false;
       }
}

You could improve efficiency in a number of ways (i.e. seeking the first byte match instead of iterating, etc.) but this could get you started... hope it helps.