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(* Forum.Score -- Upvotes and downvotes
Copyright (C) 2013 Benjamin Barenblat <bbaren@mit.edu>
This file is a part of 6.947.
6.947 is is free software: you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option) any
later version.
6.947 is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU Affero General Public License for more
details.
You should have received a copy of the GNU Affero General Public License along
with 6.947. If not, see <http://www.gnu.org/licenses/>. *)
type score = int
val insightful = 1
val undecided = 0
val inane = -1
(********************************* Instances *********************************)
val eq_score = eq_int
val show_score = show_int
val sql_score = sql_prim
val sql_summable_score = sql_summable_int
val nullify_score = @@nullify_prim [int] sql_int
(********************************* Updating **********************************)
val update = plus
(******************************** Conversion *********************************)
fun toInt s = s
(****************************** Pretty-printing ******************************)
fun withUnits s base =
show s ^ " " ^ (case s of
1 => base
| _ => base ^ "s")
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