Because sweet girls are the best, officially rebranding Logarion to Kosuzu

Signed-off-by: Izuru Yakumo <yakumo.izuru@chaotic.ninja>

git-svn-id: file:///srv/svn/repo/kosuzu/trunk@73 eb64cd80-c68d-6f47-b6a3-0ada418499da

cmd/txt/topics.ml

@@ -0,0 +1,21 @@
+open Kosuzu
+let topics r authors_opt =
+	let predicates = Archive.(predicate authored authors_opt) in
+	let predicate text = List.fold_left (fun a e -> a && e text) true predicates in
+	let topic_union a (e, _) = String_set.union a (Text.set "topics" e) in
+	let s = File_store.fold ~r ~predicate topic_union String_set.empty in
+	print_endline @@ String_set.to_string s
+
+open Cmdliner
+let recurse = Arg.(value & flag & info ["R"] ~doc: "Include texts in subdirectories")
+let authed = Arg.(value & opt (some string) None & info ["authored"] ~docv: "Comma-separated authors" ~doc: "Topics by authors")
+let topics_t = Term.(const topics $ recurse $ authed)
+
+let cmd =
+  let doc = "List topics" in
+  let man = [
+      `S Manpage.s_description;
+      `P "List of topics" ]
+  in
+  let info = Cmd.info "topics" ~doc ~man in
+  Cmd.v info topics_t