# RELAX NG schema for http://people.freedesktop.org/~hughsient/appdata/
#
# Written by Simon Kågedal Reimer 2013 <skagedal gmail com>
# Released as Public Domain (CC0 1.0)

start = application

application = 
  element application { 
    id 
    & licence 
    & name? 
    & summary? 
    & description 
    & screenshots? 
    & url* 
    & updatecontact?
  }

id = 
  element id {
    # Other types?
    attribute type { string "desktop" },
    text 
  }

# Other licences?  Worth restricting this at all, or use free content?
licence =  element licence { 
  string "CC0" 
  | string "CC BY" 
  | string "CC BY-SA" 
}

name =  element name { text }

summary =  element summary { text }

description = 
  element description {
    (p | ul | ol)*
  }

p = element p { text }

ul = element ul { Entries }

ol = element ol { Entries }

Entries = element li { text }+

screenshots = element screenshots { screenshot+ }

screenshot = element screenshot 
  { 
    attribute type { string "default" }?,    # Other types?
    attribute width { xsd:integer },
    attribute height { xsd:integer },
    xsd:anyURI
  }

url = element url 
  { 
    attribute type { string "homepage" }?,     # Other types?
    xsd:anyURI
  }

updatecontact =  element updatecontact { text }