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Subject: Re: [ubl-dev] SBS and Restricted Data Types
On Wed, 03 May 2006 13:12:03 +0100, <stephen.green@systml.co.uk> wrote: > One other thing though: How would you reckon the feasibility > of logically validating that a subset which includes pattern > restrictions of strings is a true strict subset of a schema? > Is it a step too far for now? If so I'd propose that adding > pattern restrictions might best be kept to specific agreements or > individual software implementations rather than including such > in a standardisation effort such as the SBS. Doing it with Schematron or other XPath-based tools would by tricky. However, writing a SAX filter that checks element/attribute values against one or more regular expression is straightforward. Cheers, Tony. -- Anthony B. Coates Senior Partner Miley Watts Experts In Data +44 (79) 0543 9026 Data standards participant: ISO 20022 (ISO 15022 XML), ISO 19312, UN/CEFACT TMG, MDDL, FpML, UBL.
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