namespace c = "http://bitten.edgewall.org/tools/c"
namespace hg = "http://bitten.edgewall.org/tools/hg"
namespace java = "http://bitten.edgewall.org/tools/java"
namespace mono = "http://bitten.edgewall.org/tools/mono"
namespace php = "http://bitten.edgewall.org/tools/php"
namespace python = "http://bitten.edgewall.org/tools/python"
namespace sh = "http://bitten.edgewall.org/tools/sh"
namespace svn = "http://bitten.edgewall.org/tools/svn"
namespace x = "http://bitten.edgewall.org/tools/xml"

element build {
  element step {
    attribute id { text },
    attribute description { text }?,
    attribute onerror { "fail" | "continue" | "ignore" }?,
    (element report {
       attribute category { text }?,
       attribute file { text }?
     }
     | element attach {
         attribute file { text }?,
         attribute resource { text }?,
         attribute description { text }?
       }
     | element sh:exec {
         attribute executable { text }?,
         attribute file { text }?,
         attribute output { text }?,
         attribute args { text }?,
         attribute dir { text }?,
         attribute timeout { text }?
       }
     | element sh:pipe {
         attribute executable { text }?,
         attribute file { text }?,
         attribute input { text }?,
         attribute output { text }?,
         attribute args { text }?,
         attribute dir { text }?
       }
     | element c:autoreconf {
         attribute force { text }?,
         attribute install { text }?,
         attribute symlink { text }?,
         attribute warnings { text }?,
         attribute prepend_include { text }?,
         attribute include { text }?
       }
     | element c:configure {
         attribute file { text }?,
         attribute enable { text }?,
         attribute disable { text }?,
         attribute with { text }?,
         attribute without { text }?,
         attribute cflags { text }?,
         attribute cxxflags { text }?
       }
     | element c:gcov {
         attribute include { text }?,
         attribute exclude { text }?,
         attribute prefix { text }?,
         # undocumented attribute
         attribute root { text }?
       }
     | element c:make {
         attribute target { text }?,
         attribute file { text }?,
         attribute keep-going { text }?,
         attribute jobs { text }?,
         attribute directory { text }?,
         attribute args { text }?
       }
     | element c:cppunit {
         attribute file { text }?
       }
     | element java:ant {
         attribute file { text }?,
         attribute target { text }?,
         attribute args { text }?,
         # c:make uses dash, java:ant uses underscore. Why?
         attribute keep_going { text }?
       }
     | element java:cobertura {
         attribute file { text }?
       }
     | element java:junit {
         attribute file { text }?,
         attribute srcdir { text }?
       }
     | element mono:nunit {
         attribute file { text }?
       }
     | element php:phing {
         attribute file { text }?,
         attribute target { text }?,
         attribute args { text }?,
         attribute executable { text }?
       }
     | element php:phpunit {
         attribute file { text }?
       }
     | element php:coverage {
         attribute file { text }?
       }
     | element python:exec {
         attribute file { text }?,
         attribute module { text }?,
         attribute function { text }?,
         attribute args { text }?,
         attribute output { text }?,
         attribute timeout { text }?
       }
     | element python:distutils {
         attribute command { text }?,
         attribute options { text }?,
         attribute timeout { text }?
       }
     | element python:unittest {
         attribute file { text }
       }
     | element python:trace {
         attribute summary { text }?,
         attribute coverdir { text }?,
         attribute include { text }?,
         attribute exclude { text }?
       }
     | element python:coverage {
         attribute summary { text }?,
         attribute coverdir { text }?,
         attribute include { text }?,
         attribute exclude { text }?
       }
     | element python:figleaf {
         attribute summary { text }?,
         attribute include { text }?,
         attribute exclude { text }?
       }
     | element python:pylint {
         attribute file { text }
       }
     | element svn:checkout {
         attribute url { text },
         attribute path { text },
         attribute revision { text },
         attribute dir { text }?,
         attribute verbose { text }?,
         attribute shared_path { text }?,
         attribute username { text }?,
         attribute password { text }?,
         attribute no_auth_cache { text }?
       }
     | element svn:export {
         attribute url { text },
         attribute path { text },
         attribute revision { text },
         attribute dir { text }?,
         attribute username { text }?,
         attribute password { text }?,
         attribute no_auth_cache { text }?
       }
     | element svn:update {
         attribute revision { text },
         attribute dir { text }?,
         attribute username { text }?,
         attribute password { text }?,
         attribute no_auth_cache { text }?
       }
     | element x:transform {
         attribute src { text },
         attribute dest { text },
         attribute stylesheet { text }
       }
     | element hg:pull {
         attribute revision { text }?,
         attribute dir { text }?
       })+
  }+
}