It was to prevent confusion between XML schema pattern facet and DFDL text number and text calendar patterns. Regards Steve Hanson Architect, IBM Data Format Description Language (DFDL) Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 From: Mike Beckerle <mbeckerle.dfdl@gmail.com> To: dfdl-wg@ogf.org, Date: 15/05/2013 18:51 Subject: [DFDL-WG] rationale for only allowing pattern facet on xs:string type Sent by: dfdl-wg-bounces@ogf.org The pattern facet is allowed on all types in XML Schema. DFDL says the XSDL pattern facet is for xs:string type elements only. What is the rationale for this restriction? We are encountering many constraints in format specs that are using XML Schema regular expressions, where those regex are applied to numeric types (e.g., xs:decimal for lattitude and longitude). -- Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com -- dfdl-wg mailing list dfdl-wg@ogf.org https://www.ogf.org/mailman/listinfo/dfdl-wg Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU