public SRex NotFollowedBy(EPat cp)
{
string nextPattern = TranslateInRegEx(cp);
if (!nextPattern.StartsWith("["))
{
throw new Exception("'Not' isn't suitable for: " + cp.ToString());
}
nextPattern = "[^" + nextPattern.Substring(1);
return(AddNewPattern(nextPattern, false, ""));
}
private string TranslateInRegEx(EPat cp)
{
switch (cp)
{
case EPat.NUMBERS:
return("[0-9]");
case EPat.LETTERS_UCASE:
return("[A-Z]");
case EPat.LETTERS_LCASE:
return("[a-z]");
//case EPat.LETTERS:
// return "[A-Za-z]";
//case EPat.LETTERS_NUMS:
// return "[A-Za-z0-9]";
case EPat.SPACE:
return("[ ]");
case EPat.ANY_SPACE:
return(@"\s");
case EPat.ANY_CHAR:
return(".");
case EPat.TAB:
return(@"\t");
case EPat.NEWLINE:
return(@"\n");
case EPat.CARRIAGE_RETURN:
return(@"\r");
default:
throw new Exception("Unrecognize " + cp.ToString());
}
}