From mdeane@ANSI.org Thu Jun 7 22:21:14 2001 Received: from ratatosk.DK.net (ratatosk.DK.net [193.88.44.22]) by dkuug.dk (8.9.2/8.9.2) with ESMTP id WAA00557 for ; Thu, 7 Jun 2001 22:21:14 +0200 (CEST) (envelope-from mdeane@ANSI.org) Received: from email1.ansi.org (email1.ansi.org [216.173.49.99]) by ratatosk.DK.net (8.9.3+Sun/8.9.1) with ESMTP id UAA16394 for ; Thu, 7 Jun 2001 20:35:29 +0200 (MET DST) Received: by email1.ansi.org with Internet Mail Service (5.5.2650.21) id ; Thu, 7 Jun 2001 14:34:32 -0400 Message-ID: <2F81C8110D55D411882A0020356797B2194EEE@email1.ansi.org> From: Matthew Deane To: "'SC 22 Distribution List'" Subject: SC 22 N 3249 - SC 22/WG 20 Request to ITTF for Guidance Date: Thu, 7 Jun 2001 14:34:31 -0400 X-Mailer: Internet Mail Service (5.5.2650.21) ISO/IEC JTC 1/SC22 Programming languages, their environments and system software interfaces Secretariat: U.S.A. (ANSI) ISO/IEC JTC 1/SC22 N 3249 TITLE: SC 22/WG 20 Request to ITTF for Guidance DATE ASSIGNED: 2001-06-07 SOURCE: SC 22/WG 20 Convener (A. Winkler) BACKWARD POINTER: N/A DOCUMENT TYPE: Other document (Open) PROJECT NUMBER: N/A STATUS: This request has been sent to ITTF for its review and recommendation. ACTION IDENTIFIER: ACT DUE DATE: DISTRIBUTION: Text CROSS REFERENCE: DISTRIBUTION FORM: Open Address reply to: ISO/IEC JTC 1/SC22 Secretariat Matt Deane ANSI 25 West 43rd Street New York, NY 10036 Telephone: (212) 642-4992 Fax: (212) 840-2298 Email: mdeane@ansi.org ______________end of title page, beginning of document____________________________ SC22/WG20 N838 May 11, 2001 Request to ITTF for consideration and advice. Source: SC22/WG20 In its meeting in May 2001, WG20 discussed the status of TR 10176, where the continuously growing repertoire of ISO/IEC 10646 impacts the table of characters which are allowed as identifiers in programming languages. Each approved amendment to ISO/IEC 10646 adds characters and requires TR 10176 with its identifier table to be revised and re-published since TRs can not be amended. The same situation is true for TR 14652, and IS 14651; both these projects are strongly related to the 10646 repertoire and need constant revisions. We are asking ITTF to consider the following possibility to easily keep the table up to date without re-publishing the Technical Report: * The text of the TR contains the link to a document on an ITTF controlled web site. * The web document contains links to the versioned tables * The newer versions contain all characters of the older ones, thus are backward compatible. * The compiler can claim conformance to versions of ISO/IEC 10646 by selecting the table that represents its repertoire of characters allowed as identifiers. This method would allow that : * new tables of characters in TR 10176 for use in identifiers can be approved and published much faster than today * implementers can select from a variety of repertoires to meet their requirements * implementations will be able to use earlier tables * the tables are related to specific versions of ISO/IEC 10646 Not only TR 10176 would profit from such a publication option, but also TR 14652 and possibly other TRs. WG20 is asking ITTF to consider allowing this method for Technical Reports the same way as it is already approved for International Standards. The best example is ISO/IEC 14651, where the Common Template Table resides on the ITTF web site and where a new revision of the table is in preparation. For further information or discussion of technical details please contact WG20 through its convenor Arnold F. Winkler (also editor of TR 10176). Arnold F. Winkler