lang_data.spec

How to read this:
a := b  "a consists of b"
c[]     "an array of c objects"
[a, b]  "an array containing an a and b object"

map_data_ary := map_data[] (indexed by map id)
map_data := event_data[] (indexed by event id)
event_data := list_data[] or nil (indexed by page index)
list_data := [text_data, choice_data, substitute] or nil
text_data := text_block[]
text_block := RPG::EventCommand[]
choice_data := RPG::EventCommand[]
substitute := RPG::EventCommand[]

ce_data_ary := list_data[] (indexed by common event id)

item_data := RPG::Item[] (raw contents of Items.rxdata)

--------------------------------

lang_data = {
	:map_data_ary => map_data_ary,
	:ce_data_ary => ce_data_ary,
	:items => item_data
}

lang.rxdata is a Marshal.dump'd lang_data hash.