Re: [Quickfix-developers] Default validation too aggressive?

[Oren M. <or...@qu...>]

Well the only time repeated tags are allowed is within the context of a =
repeating group.  The thing with repeating groups is that they can only =
be parsed if a data dictionary is present.  This is because the parser =
needs to know which fields constitute the begining of a group, what =
field is the delimiter, and what order all the fields need to be in.  If =
there is no data dictionary, then the parser must assume that the =
repeated tag is being placed inside the message body outside of the =
context of a repeating group.  This is not allowed, and would =
furthermore confuse the parser, so the message is rejected.

--oren
  ----- Original Message -----=20
  From: Brian McAndrews=20
  To: qui...@li...=20
  Sent: Tuesday, September 06, 2005 11:53 AM
  Subject: [Quickfix-developers] Default validation too aggressive?


  I had an app running without UseDataDictionary=3D false.  However, I =
was missing messages with repeated tags.  The problem occurs inside the =
DataDictionary validate call stack.  Here's a partial listing of the =
iterate method:

  =20

  void DataDictionary::iterate( const FieldMap& map, const MsgType& =
msgType )

  { QF_STACK_PUSH(DataDictionary::iterate)

  =20

    int lastField =3D 0;

  =20

    FieldMap::iterator i;

    for ( i =3D map.begin(); i !=3D map.end(); ++i )

    {

      const FieldBase& field =3D i->second;

      if( i !=3D map.begin() && (field.getField() =3D=3D lastField) )

        throw RepeatedTag( lastField ); =20

  =20

  =20

  note, that with repeated tags, the throw RepeatedTag will get called.  =
Isn't this a bit harsh not to allow repeated tags when not using a =
DataDictionary?  Or am I missing something more fundamental?

  =20

  Thanks