You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@daffodil.apache.org by "Michael Beckerle (JIRA)" <ji...@apache.org> on 2018/07/10 17:40:00 UTC

[jira] [Assigned] (DAFFODIL-1919) Trailing Separator Suppression

     [ https://issues.apache.org/jira/browse/DAFFODIL-1919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Beckerle reassigned DAFFODIL-1919:
------------------------------------------

    Assignee: Michael Beckerle

> Trailing Separator Suppression
> ------------------------------
>
>                 Key: DAFFODIL-1919
>                 URL: https://issues.apache.org/jira/browse/DAFFODIL-1919
>             Project: Daffodil
>          Issue Type: Bug
>          Components: DFDL Language
>    Affects Versions: 2.0.0
>            Reporter: Josh Adams
>            Assignee: Michael Beckerle
>            Priority: Major
>             Fix For: 2.2.0
>
>
> Working with Mike on getting the IBMTLOG schema project working, we have come to the conclusion that Daffodil's compiler and runtime cannot correctly support trailing suppression without some major refactoring.
> We can currently support separatorSuppresssionPolicy always or never, but trailing suppression requires backtracking that will need its own iterative combinators.
> Pull request 55 (which should be pushed upstream soon after the creation of this ticket) includes a couple tests that demonstrate what works and doesn't work with our current implementation.  I believe that we can currently support trailing suppression for required elements, but for optional separated elements things break down when the first element of a sequence is optional and missing.  See org.apache.daffodil.section13.packed.TestPacked.testDelimitedIBM4690IntOptSeq02



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)