ISSUE-75
pattern for IEEE754r (floating point numbers)
- State:
- OPEN
- Product:
- Advanced
- Raised by:
- Vladislav Bezrukov
- Opened on:
- 2006-10-19
- Description:
A programming language supporting the IEEE 754r floating point spec [1] needs to express this type in terms of XML Schema 1.0 [2]. This type is directly supported by the XML Schema 1.1 as precisionDecimal [3]. However the databinding tools based on the XML Schema 1.0 lack the corresponding schema pattern. Proposal: To consider the following Schema Pattern for the new floating point numbers: <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:pat="http://www.w3.org/2002/ws/databinding/patterns/6/09/" targetNamespace="http://www.w3.org/2002/ws/databinding/patterns/6/09/"> <xsd:simpleType name="precisionDecimal"> <xsd:union> <xsd:simpleType> <xsd:restriction base="xsd:decimal"> <xsd:totalDigits value="16"/> </xsd:restriction> </xsd:simpleType> <xsd:simpleType> <xsd:restriction base="xsd:double"/> </xsd:simpleType> <xsd:simpleType> <xsd:restriction base="xsd:string"> <xsd:enumeration value="NaN"/> <xsd:enumeration value="-INF"/> </xsd:restriction> </xsd:simpleType> </xsd:union> </xsd:simpleType> </xsd:schema> We are aware that value space of the xsd:double is smaller than xsd11:precisionDecimal. However we have found nothing better than it. Any comments are very welcome.
- Related emails:
- ISSUE-75: pattern for IEEE754r (floating point numbers) (from dean+cgi@w3.org on 2006-10-19)
- Agenda: XML Schema Patterns for Databinding telcon 24 October 2006 (from paul.downey@bt.com on 2006-10-24)
- RE: ISSUE-75: pattern for IEEE754r (floating point numbers) (from paul.downey@bt.com on 2006-11-01)
- Agenda: XML Schema Patterns for Databinding telcon 28 November 2006 (from paul.downey@bt.com on 2006-11-26)
Related notes:
No additional notes.