# *********************************************
# 
# 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 { xsd:anyURI }
CDBase = element CDBase { xsd:anyURI }
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" |
   "attribution" |
   "semantic-attribution" |
   "error" |
   "application" |
   "constant" }
CMP = element CMP { text }
FMP = element FMP { 
  attribute kind {xsd:string}?,
  OMOBJ
  }
# allow embedded OM
Example = element Example { text-or-om }
CDDefinition =
  element CDDefinition {
    CDComment*,
    (Name & Role? & Description),
   (CDComment | Example | FMP | CMP)*
  }
CD =
  element CD {
    (CDComment* & Description? &
     CDName & CDURL? & CDBase? &
     CDReviewDate? & CDDate & CDStatus & 
     CDUses? & 
     CDVersion & CDRevision),
    ( CDDefinition,CDComment* )+
  }