Spring RTS Engine

Hello

I need to know how to access the "category" field of unitdefs from lua.
The wiki specifies nothing and having tried just "category" brings up an error.

Specifically what i need is to check whetever a certain unit belongs to a category, i dont really know how to do that either once i have the category field as a string.

The wiki tells you on this page http://springrts.com/wiki/Lua_UnitDefs, where the format of the modCategories table is specified. For example:
returns true if and only if the unitDefID has category ship.

Works like a charm, thanks.