808       if (S.drop_front() == "FF") // OFF  in parseBool()
812       if (S.drop_front() == "ff") //[Oo]ff  in parseBool()
816       if (S.drop_front() == "ES") // YES  in parseBool()
820       if (S.drop_front() == "es") //[Yy]es  in parseBool()
829       if (S.drop_front() == "RUE") // TRUE  in parseBool()
833       if (S.drop_front() == "rue") //[Tt]rue  in parseBool()
842       if (S.drop_front() == "ALSE") // FALSE  in parseBool()
846       if (S.drop_front() == "alse") //[Ff]alse  in parseBool()
2069       UnquotedValue = UnescapeCallback(UnquotedValue.drop_front(I), Storage);  in parseScalarValue()
2102     UnquotedValue = UnquotedValue.drop_front(I + 1).ltrim(" \t");  in parseScalarValue()
2125     UnquotedValue = UnquotedValue.drop_front(1);  in getDoubleQuotedValue()
2137         UnquotedValue = UnquotedValue.drop_front(1);  in getDoubleQuotedValue()
2140       return UnquotedValue.drop_front(1).ltrim(" \t");  in getDoubleQuotedValue()
2202       return UnquotedValue.drop_front(3);  in getDoubleQuotedValue()
2213       return UnquotedValue.drop_front(5);  in getDoubleQuotedValue()
2224       return UnquotedValue.drop_front(9);  in getDoubleQuotedValue()
2227     return UnquotedValue.drop_front(1);  in getDoubleQuotedValue()
2243     return UnquotedValue.drop_front(2);  in getSingleQuotedValue()