default namespace = "http://www.wa5znu.org/2006/01/xdif/"
namespace space = "http://www.wa5znu.org/2006/01/xdif/propagation/space/"

start = log
operator =
  ((notAllowed
    | element callsign {
        xsd:string { pattern = "[a-zA-Z0-9]+(/[a-zA-Z0-9]+)?" }
      })
   | (notAllowed
      | element name { \string })
   | (notAllowed
      | element age { xsd:integer })
   | (notAllowed
      | element email { \string })
   | (notAllowed
      | element webpage { xsd:anyURI })
   | clubs
   | (notAllowed
      | element mailingAddress { multiLineString }))*,
  empty
qsoType =
  (attribute id { xsd:ID }?,
   (my
    | om
    | (notAllowed
       | element band { band })
    | (notAllowed
       | element frequency { decimal })
    | (notAllowed
       | element mode { mode })
    | (notAllowed
       | element comment { \mixed })
    | (notAllowed
       | element notes { \mixed })
    | (notAllowed
       | element propagation { propagationMode? })
    | (notAllowed
       | element begin { dateTime })
    | (notAllowed
       | element end { dateTime })
    | (notAllowed
       | element schedule { empty })
    | rx2
    | tx
    | (notAllowed
       | element swl { rx })
    | qsl
    | (notAllowed
       | element complete {
           xsd:string "no"
           | xsd:string "notHeard"
           | xsd:string "yes"
           | xsd:string "uncertain "
         }))?+),
  empty
EarthCurrents = notAllowed | anonymous19
EchoLink = notAllowed | anonymous12
qst =
  notAllowed
  | element qst { qsoType }
mode =
  (attribute emission {
     xsd:string {
       pattern =
         "([0-9]+G)?([0-9]+M)?((0-9)+K)?([0-9]+H)?[A-Z][0-9][A-Z][A-Z]?[A-Z]?"
     }
   }?,
   (xsd:QName { pattern = "[^:]+:[^:]+" }
    | (xsd:string "HFSK"
       | xsd:string "QPSK31"
       | xsd:string "PKT"
       | xsd:string "AM"
       | xsd:string "BPSK63"
       | xsd:string "FAX"
       | xsd:string "Q15"
       | xsd:string "PCW"
       | xsd:string "HELL"
       | xsd:string "TOR"
       | xsd:string "QPSK63"
       | xsd:string "JT44"
       | xsd:string "GTOR"
       | xsd:string "ASCI"
       | xsd:string "ATV"
       | xsd:string "MFSK8"
       | xsd:string "QPSK125"
       | xsd:string "SSTV"
       | xsd:string "MFSK16"
       | xsd:string "FM"
       | xsd:string "RTTY"
       | xsd:string "SSB"
       | xsd:string "BPSK125"
       | xsd:string "BPSK31"
       | xsd:string "PAC"
       | xsd:string "PAC3"
       | xsd:string "THRB"
       | xsd:string "PAC2"
       | xsd:string "CW"
       | xsd:string "MT63"
       | xsd:string "CLO"))),
  empty
Backscatter = notAllowed | anonymous18
definitions =
  notAllowed
  | element definitions {
      attribute id { xsd:ID }?,
      (element station { station }
       | location
       | equipment)*
    }
Ionoscatter = notAllowed | anonymous5
contest =
  notAllowed
  | element contest {
      attribute name { xsd:string }?,
      (element serial { xsd:integer }
       | element information { xsd:string })?
    }
log =
  notAllowed
  | element log {
      attribute programversion { xsd:string },
      attribute programid { xsd:string },
      definitions?,
      my,
      qsos?,
      (Satellite | EarthMoonEarth | MeteorScatter)*
    }
\mixed = element0*, empty
station =
  (attribute use { xsd:IDREF }?,
   attribute id { xsd:ID }?,
   ((notAllowed
     | element control { operator })
    | (notAllowed
       | element guest { operator })
    | location
    | clubs
    | (notAllowed
       | element sig {
           attribute webpage { xsd:anyURI }?,
           xsd:string
         })
    | equipment
    | (Satellite | EarthMoonEarth | MeteorScatter))?+),
  empty
qsos =
  notAllowed
  | element qsos { (qso | cq | qst)* }
qslstatus =
  ((notAllowed
    | element status {
        (element sent { date }
         | element requested { date }
         | element queued { date }
         | element ignore { date }
         | element invalid { date })*
      })
   | (notAllowed
      | element via {
          element bureau { \mixed }
          | element direct { \mixed }
          | element electronic { \mixed }
        }))?,
  empty
clubs =
  notAllowed
  | element clubs { club* }
F2Reflection = notAllowed | anonymous17
TransEquatorialScatter = notAllowed | anonymous14
SporadicE = notAllowed | anonymous16
band = xsd:string
decimal = xsd:decimal
dateTime = xsd:dateTime
Aurora-E = notAllowed | anonymous13
LightningScatter = notAllowed | anonymous15
equipment =
  notAllowed
  | element equipment {
      attribute use { xsd:IDREF }?,
      attribute id { xsd:ID }?,
      (element antenna {
         attribute azimuth {
           xsd:decimal { minInclusive = "-90" maxInclusive = "90" }
         }?,
         attribute elevation {
           xsd:decimal { minInclusive = "-180" maxInclusive = "180" }
         }?,
         attribute height { xsd:decimal }?,
         xsd:string
       }
       | empty
       | element rig { xsd:string }
       | element power { decimal }
       | Satellite
       | EarthMoonEarth
       | MeteorScatter)+
    }
IRLP = notAllowed | anonymous4
multiLineString = xsd:string
rx2 =
  notAllowed
  | element rx { rx }
rx =
  ((notAllowed
    | element rst { rst })
   | (notAllowed
      | element frequency { decimal })
   | (notAllowed
      | element band { band })
   | (notAllowed
      | element mode { mode })
   | contest
   | (Satellite | EarthMoonEarth | MeteorScatter))*,
  empty
rst = xsd:string
Repeater = notAllowed | anonymous3
om =
  notAllowed
  | element om { station }
Aurora = notAllowed | anonymous1
Groundwave = notAllowed | anonymous11
EarthMoonEarth = notAllowed | anonymous8
date = xsd:date
qsl =
  notAllowed
  | element qsl {
      element qslmsg { multiLineString }
      | empty
      | element tx { qslstatus }
      | element rx { qslstatus }
      | element swl { qslstatus }
    }
Satellite = notAllowed | anonymous7
FieldAlignedIrregularities = notAllowed | anonymous2
element0 =
  element * {
    mixed {
      (element0
       | attribute * { text })*
    }
  }
cq =
  notAllowed
  | element cq { qsoType }
club =
  notAllowed
  | element club {
      attribute name { xsd:string }?,
      attribute number { xsd:string }?,
      attribute webpage { xsd:anyURI }?,
      xsd:string
    }
propagationMode =
  anonymous7
  | anonymous8
  | anonymous9
  | anonymous10
  | anonymous5
  | anonymous4
  | anonymous11
  | anonymous12
  | anonymous13
  | anonymous14
  | anonymous15
  | anonymous16
  | anonymous17
  | anonymous18
  | anonymous19
  | anonymous3
  | anonymous2
  | anonymous1
  | anonymous0
anonymous8 =
  element space:EarthMoonEarth {
    anonymous6,
    element space:forceInitial { empty },
    (log
     | RainScatter
     | propagationMode
     | equipment
     | definitions
     | Ionoscatter
     | IRLP
     | qsos
     | cq
     | my
     | rx2
     | Groundwave
     | clubs
     | EchoLink
     | Aurora-E
     | TransEquatorialScatter
     | qso
     | qst
     | om
     | LightningScatter
     | SporadicE
     | F2Reflection
     | location
     | Backscatter
     | tx
     | EarthCurrents
     | qsl
     | Repeater
     | contest
     | FieldAlignedIrregularities
     | Aurora
     | club
     | TroposphericDucting)*
  }
anonymous16 =
  element SporadicE {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous6 = empty
anonymous18 =
  element Backscatter {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous14 =
  element TransEquatorialScatter {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous12 =
  element EchoLink {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous15 =
  element LightningScatter {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous10 =
  element RainScatter {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous4 =
  element IRLP {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous7 =
  element space:Satellite {
    anonymous6,
    element space:satelliteMode { xsd:integer },
    element space:satelliteName { xsd:string },
    (log
     | RainScatter
     | propagationMode
     | equipment
     | definitions
     | Ionoscatter
     | IRLP
     | qsos
     | cq
     | my
     | rx2
     | Groundwave
     | clubs
     | EchoLink
     | Aurora-E
     | TransEquatorialScatter
     | qso
     | qst
     | om
     | LightningScatter
     | SporadicE
     | F2Reflection
     | location
     | Backscatter
     | tx
     | EarthCurrents
     | qsl
     | Repeater
     | contest
     | FieldAlignedIrregularities
     | Aurora
     | club
     | TroposphericDucting)*
  }
anonymous1 =
  element Aurora {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous17 =
  element F2Reflection {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous0 =
  element TroposphericDucting {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous5 =
  element Ionoscatter {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous2 =
  element FieldAlignedIrregularities {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous19 =
  element EarthCurrents {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous13 =
  element Aurora-E {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous3 =
  element Repeater {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
anonymous9 =
  element space:MeteorScatter {
    anonymous6,
    element space:meteorScatterMaximumBurstLength { xsd:decimal },
    element space:meteorScatterShower { xsd:string },
    element space:meteorScatterBursts { xsd:integer },
    element space:meteorScatterPings { xsd:integer },
    (log
     | RainScatter
     | propagationMode
     | equipment
     | definitions
     | Ionoscatter
     | IRLP
     | qsos
     | cq
     | my
     | rx2
     | Groundwave
     | clubs
     | EchoLink
     | Aurora-E
     | TransEquatorialScatter
     | qso
     | qst
     | om
     | LightningScatter
     | SporadicE
     | F2Reflection
     | location
     | Backscatter
     | tx
     | EarthCurrents
     | qsl
     | Repeater
     | contest
     | FieldAlignedIrregularities
     | Aurora
     | club
     | TroposphericDucting)*
  }
anonymous11 =
  element Groundwave {
    anonymous6, (Satellite | EarthMoonEarth | MeteorScatter)*
  }
TroposphericDucting = notAllowed | anonymous0
MeteorScatter = notAllowed | anonymous9
qso =
  notAllowed
  | element qso { qsoType }
my =
  notAllowed
  | element my { station }
location =
  notAllowed
  | element location {
      attribute use { xsd:IDREF }?,
      attribute id { xsd:ID }?,
      (element arrl_section {
         xsd:string "SC"
         | xsd:string "VA"
         | xsd:string "WWA"
         | xsd:string "LA"
         | xsd:string "SF"
         | xsd:string "GA"
         | xsd:string "MDC"
         | xsd:string "ORG"
         | xsd:string "NFL"
         | xsd:string "OH"
         | xsd:string "MN"
         | xsd:string "EPA"
         | xsd:string "KY"
         | xsd:string "SB"
         | xsd:string "ENY"
         | xsd:string "LAX"
         | xsd:string "IL"
         | xsd:string "OR"
         | xsd:string "SDG"
         | xsd:string "NM"
         | xsd:string "MS"
         | xsd:string "DE"
         | xsd:string "WV"
         | xsd:string "NTX"
         | xsd:string "VI"
         | xsd:string "SJV"
         | xsd:string "WNY"
         | xsd:string "NLI"
         | xsd:string "KS"
         | xsd:string "SD"
         | xsd:string "EMA"
         | xsd:string "AK"
         | xsd:string "SFL"
         | xsd:string "TN"
         | xsd:string "SNJ"
         | xsd:string "STX"
         | xsd:string "ID"
         | xsd:string "RI"
         | xsd:string "NC"
         | xsd:string "WMA"
         | xsd:string "NH"
         | xsd:string "MT"
         | xsd:string "CO"
         | xsd:string "WI"
         | xsd:string "WTX"
         | xsd:string "OK"
         | xsd:string "NE"
         | xsd:string "NV"
         | xsd:string "NNY"
         | xsd:string "MI"
         | xsd:string "SCV"
         | xsd:string "WPA"
         | xsd:string "VT"
         | xsd:string "AZ"
         | xsd:string "PR"
         | xsd:string "SV"
         | xsd:string "IN"
         | xsd:string "AL"
         | xsd:string "UT"
         | xsd:string "WY"
         | xsd:string "ND"
         | xsd:string "AR"
         | xsd:string "PAC"
         | xsd:string "CT"
         | xsd:string "EWA"
         | xsd:string "EB"
         | xsd:string "ME"
         | xsd:string "MO"
         | xsd:string "IA"
         | xsd:string "NNJ"
       }
       | element rac_section {
           xsd:string "MB"
           | xsd:string "AB"
           | xsd:string "SK"
           | xsd:string "BC"
           | xsd:string "NWT"
           | xsd:string "QC"
           | xsd:string "MAR"
           | xsd:string "ON"
         }
       | element cq_zone { xsd:integer }
       | element dxcc { xsd:integer }
       | element gridsquare {
           xsd:string { pattern = "[A-Z][A-Z][0-9][0-9]([a-z][a-z])?" }
         }
       | element iota {
           xsd:string { pattern = "[NA|SA|EU|AF|OC|AS|AN]-[0-9]+" }
         }
       | element itu_zone { xsd:integer }
       | element lat {
           xsd:decimal { minInclusive = "-90" maxInclusive = "90" }
         }
       | element lon {
           xsd:decimal { minInclusive = "-180" maxInclusive = "180" }
         }
       | element mailingAddress { multiLineString }
       | element wpx_prefix { \string }
       | element qth { \string }
       | element county { xsd:string }
       | element state { xsd:string }
       | element country { xsd:string }
       | element continent {
           xsd:string "AF"
           | xsd:string "SA"
           | xsd:string "AS"
           | xsd:string "EU"
           | xsd:string "NA"
           | xsd:string "OC"
         }
       | Satellite
       | EarthMoonEarth
       | MeteorScatter)?+
    }
tx =
  notAllowed
  | element tx {
      (element rst { rst }
       | element frequency { decimal }
       | element band { band }
       | element mode { mode }
       | equipment
       | Satellite
       | EarthMoonEarth
       | MeteorScatter)?+
    }
RainScatter = notAllowed | anonymous10
\string = xsd:string