# Metaproxy XML config file schemas
# 
#   Copyright (C) 2005-2012 Index Data.
# 
#   See the LICENSE file for details
# 
# 
# The RelaxNG Compact Syntax file 'retrievalinfo.rnc' is the master copy.
# 
# The RelaxNG XML Syntax and XML Schema are generated using 'trang':
# trang retrievalinfo.rnc retrievalinfo.rng 
# trang retrievalinfo.rnc retrievalinfo.xsd 
# 
# Config file validation is done using 'xmllint':
# xmllint -/-relaxng retrievalinfo.rng retrievalinfo.xml 
# xmllint -/-schema retrievalinfo.xsd retirevalinfo.xml
# 
# For information on RelaxNG see http://relaxng.org 
# see also http://books.xmlschemata.org/relaxng/

namespace y = "http://indexdata.com/yaz"

# need to be in different namespace then metaproxy, otherwise 
# xslt element definition clashes in XML Schema files
# namespace y = "http://indexdata.com/metaproxy"

start |= retrievalinfo

marc = element y:marc {
  attribute inputformat { xsd:string },
  attribute outputformat { xsd:string },
  attribute inputcharset { xsd:string }
}

xslt = element y:xslt {
  attribute stylesheet { xsd:string }
}

retrievalinfo = 
  element y:retrievalinfo { 
    attribute version { "1.0" },
    element y:retrieval {
      attribute syntax { xsd:string },
      attribute name { xsd:string }?,
      attribute identifier { xsd:string }?,
      #attribute backendsyntax { xsd:string }?,
      #attribute backendname { xsd:string }?,
      element y:backend {
      attribute syntax { xsd:string },
      attribute name { xsd:string }?,
      (marc | xslt)*
      }?
    }+
  }