public Token Read()
{
var temp = current;
current = next;
next = ReadFromStream();
return temp;
}
private Token ReadFromStream()
{
var token = new Token();
var charAsInt = textReader.Read();
if (charAsInt == -1)
{
token.IsEnd = true;
}
else
{
var character = (char) charAsInt;
if (character == '\\')
{
charAsInt = textReader.Read();
if (charAsInt == -1)
{
throw new Exception("Last character cannot be an escape character '\\'.");
}
token.IsEscaped = true;
character = (char) charAsInt;
}
token.Character = character;
}
return token;
}
public TokenReader(TextReader textReader)
{
this.textReader = textReader;
current = ReadFromStream();
if (!current.IsEnd)
{
next = ReadFromStream();
}
}
private void AddCurrentValue(Token token)
{
if (token.IsEscaped)
{
currentValue += @"\";
}
currentValue += token.Character;
}