separated out rule and date logic. WIP: flattening the data, absolute from fuzzy dates, comparing dates

src/ezic_rule.erl

@@ -0,0 +1,13 @@
+-module(ezic_rule).
+-include("include/ezic.hrl").
+
+
+-export([]).
+
+
+% returns a list of all {datetime,offset} sets that must be
+% projected for this Rule.
+project(Rule=#rule{from=F, to=only}) ->
+    not_done;
+project(Rule=#rule{from=F, to=T}) ->
+    Dates= lists:map(fun(Y)-> ezic_date:for(Rule, Y)  end, lists:seq(F, T)).