WoW:Using bindings.xml to create key bindings for your addon

Example:

bindings.xml

<Bindings>
  <Binding name="DOSTUFF" description="Default description" header="MYDOSTUFF">
    DoSomething();
  </Binding>
  <Binding name="DOOTHERSTUFF" description="Other default description">
    if ( keystate == "down" ) then
      DoSomethingElse();
    else
      DoSomethingYetDifferent();
    end
  </Binding>
</Bindings>

dostuff.lua

-- Binding Variables
BINDING_HEADER_MYDOSTUFF = "The header";
BINDING_NAME_DOSTUFF = "a name";
BINDING_NAME_DOOTHERSTUFF= "an other name";

Three things.

• WoW starts a new header when it finds a header="MYDOSTUFF" in a binding definition.
  You can not "hook into" a previous header using this way.

• WoW tries to look for a lua variable BINDING_HEADER_MYDOSTUFF if you use header="MYDOSTUFF".
  If it can not find that, your binding will end up with the previous header.

• if you use name="DOSTUFF" then WoW tries to look for a lua variable
  named BINDING_NAME_DOSTUFF. If that is not found, it uses description.
  If description is not present, it uses the name.
  This last case will look ugly.

The juggling about with LUA variable names is to make it possible to localize your addon. See HOWTO: Localize an AddOn for standard localization practices.