[om] Re: Restricting the OpenMath Schemas

[David Carlisle]

Bill,

Following on from your comments about restricting the Schema,
I have prepared this version of the omcd2.rnc
It uses xsd:date for dates, xsd:nonNegativeInteger for version numbers,
restricts CDStatus and Role as you suggested, and constrains
CDDefinition to have exactly one Name and one Description child.

This is committed into the CVS sources of the OM2 draft, so
further comments are welcome,

David




# *********************************************
# 
# Relax NG Schema for OpenMath CD
# 
# *********************************************

default namespace = "http://www.openmath.org/OpenMathCD"

include "openmath2.rnc" {start = CD}

CDComment = element CDComment { text }
CDName = element CDName { xsd:NCName }
CDUses = element CDUses { CDName* }
CDURL = element CDURL { text }
CDBASE = element CDBASE { text }
text-or-om = (text | OMOBJ)*
CDReviewDate = element CDReviewDate { xsd:date }
CDDate = element CDDate { xsd:date }
CDVersion = element CDVersion { xsd:nonNegativeInteger }
CDRevision = element CDRevision { xsd:nonNegativeInteger }
CDStatus = element CDStatus { "official" | "experimental" | "private" | "obsolete"}
Description = element Description { text }
Name = element Name { xsd:NCName }
Role = element Role { "binder" | "semantic-attribution" | "error" | "default" }
CMP = element CMP { text }
FMP = element FMP { OMOBJ }
# allow embedded OM
Example = element Example { text-or-om }
CDDefinition =
  element CDDefinition {
    CDComment*,
    (Name & Description),
   (CDComment | Example | FMP | CMP)*
  }
CD =
  element CD {
    CDComment*,
    (CDName & CDURL & 
     CDReviewDate & CDDate & CDStatus & 
     CDUses & 
     CDVersion & CDRevision),
    (CDComment | Description | CDDefinition | Example)*
  }



-- 
http://www.dcarlisle.demon.co.uk/matthew

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