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-rw-r--r--forum/score.ur38
1 files changed, 34 insertions, 4 deletions
diff --git a/forum/score.ur b/forum/score.ur
index a966a4d..217c308 100644
--- a/forum/score.ur
+++ b/forum/score.ur
@@ -1,6 +1,29 @@
+(* 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 update = plus
+val insightful = 1
+val undecided = 0
+val inane = -1
+
+
+(********************************* Instances *********************************)
val eq_score = eq_int
@@ -10,12 +33,19 @@ val sql_score = sql_prim
val sql_summable_score = sql_summable_int
val nullify_score = @@nullify_prim [int] sql_int
-val insightful = 1
-val undecided = 0
-val inane = -1
+
+(********************************* Updating **********************************)
+
+val update = plus
+
+
+(******************************** Conversion *********************************)
fun toInt s = s
+
+(****************************** Pretty-printing ******************************)
+
fun withUnits s base =
show s ^ " " ^ (case s of
1 => base