public static Info Parse(CharStream stream, Info expected = null)
{
string output;
int pos = stream.Position;
if (!stream.ReadReg("(\'|\")", out output))
{
throw new Exceptions.ParseException(
String.Format(
"expected to read a <quote> (starting at {0}), but no characters were left",
stream.ComputeDetailedPosition(pos)));
}
Info info;
if (output[0] == '"')
{
info = new Info(Type.Double);
} else
{
info = new Info(Type.Single);
}
if (expected != null && expected.CompareTo(info) != 0)
{
throw new Exceptions.ParseException(
String.Format(
"expected to read {0} (starting at {1}), but found {2}",
expected.ToString(),
stream.ComputeDetailedPosition(pos),
info.ToString()));
}
return info;
}
