1. OMG Issue

NOT11 — Constraint Language issue

  • Key: NOT11-17
  • Legacy Issue Number: 1684
  • Status: closed  
  • Source: Anonymous
  • Summary:

    Summary: Because the constraint language is inherited from the Trader specification, we
    have these categories:

    <expr_in> := <expr_twiddle> in <Ident> | <expr_twiddle>
    <expr_twiddle> := <expr> ~ <expr> | <expr>

    It seems that the point of the "in" operator is to determine whether the LHE
    is in the RHE where the RHE is a sequence. However, there"s no way to access
    the current event since the RHE is only allowed to be an Ident, not "$"
    <Component>. It appears that the RHE could only be an unstructured runtime
    variable in practice. If this is not the case, how is it supposed to work?

    In addition, the <preference> syntactic category makes no sense. I assume that
    it is not be supported. This is perhaps a small point, but I can"t find a
    reference to it.

  • Reported: NOT 1.0.1 — Wed, 15 Jul 1998 04:00 GMT
  • Disposition: Resolved — NOT 1.1
  • Disposition Summary:
  • Updated: Fri, 6 Mar 2015 20:58 GMT