IDL 4.3 RTF Avatar
  1. OMG Issue

IDL43 — Syntax of annotation_appl requires clarification

  • Key: IDL43-4
  • Status: open  
  • Source: Airbus Group ( Oliver Kellogg)
  • Summary:

    7.4.15.4.2 on p.101 contains the rule

    (225) <annotation_appl> ::= "@" <scoped_name> [ "(" <annotation_appl_params> ")" ]

    The nature of the EBNF notation leaves room for interpreting that between the @ and the <scoped_name> there could appear spaces, tabs, or even comments.

    On the other hand, 7.4.15.4.1 on p.100 contains:

    (220) <annotation_header> ::= "@annotation" <identifier>

    Here, it is clear that @annotation shall be treated as a single token without intermittent characters between @ and annotation.

    I propose adding a clarification in the explanations at the beginning of p.102 (following rule 227):

    Applying an annotation consists in prefixing the element under annotation with:

    • The annotation name ( <scoped_name> ) prefixed with the at symbol( @ ), also known as commercial at. There shall be no intermittent spaces, tabs, or comments between @ and <scoped_name>.

    The last sentence is my proposed addition.

  • Reported: IDL 4.2b1 — Fri, 26 Jan 2018 22:03 GMT
  • Updated: Tue, 30 Jan 2018 19:42 GMT