Allow users to give/remove more than 1 point up to configurable limit

Maximum defaults to 5 and can be set in HUBOT_PLUSPLUS_MAX_POINTS.

README.md

@@ -6,12 +6,10 @@ Give (or take away) points from people and things, all from the comfort of your
 personal Hubot.
 
 What makes (or will make) this different from the original hubot-plusplus?
-- Aims to incorporate some of the features of the Hipchat Karma bot
+
+This package allows input closer to that accepted by the Hipchat Bot Karma
     + Flexibility of input (arbitrary text before/after "thing++")
     + Add and remote multiple points at once
-- Admin support
-    + Only admins can erase things
-    + Set arbitrary point values for things
 
 API
 ---

src/mega-plusplus.coffee

@@ -41,6 +41,7 @@ module.exports = (robot) ->
   scoreKeeper = new ScoreKeeper(robot)
   scoreKeyword   = process.env.HUBOT_PLUSPLUS_KEYWORD or 'score'
   reasonsKeyword = process.env.HUBOT_PLUSPLUS_REASONS or 'raisins'
+  maxPoints = process.env.HUBOT_PLUSPLUS_MAX_POINTS or 5
   reasonConjunctions = process.env.HUBOT_PLUSPLUS_CONJUNCTIONS or 'for|because|cause|cuz|as'
 
   # sweet regex bro
@@ -52,7 +53,7 @@ module.exports = (robot) ->
     # allow for spaces after the thing being upvoted (@user ++)
     \s*
     # the increment/decrement operator ++ or --
-    (\+\+|--|—)
+    (\+{2,}|-{2,})
     # optional reason for the plusplus
     (?:\s+(?:#{reasonConjunctions})\s+(.+))?
   ///i, (msg) ->
@@ -76,10 +77,12 @@ module.exports = (robot) ->
       reason = lastReason if !reason? && lastReason?
 
     # do the {up, down}vote, and figure out what the new score is
-    [score, reasonScore] = if operator == "++"
-              scoreKeeper.add(name, from, room, reason)
+    requestedMagnitude = (operator.length - 1)
+    magnitude = Math.min(requestedMagnitude, maxPoints)
+    [score, reasonScore] = if operator.charAt(0) == "+"
+              scoreKeeper.addX(name, from, magnitude, room, reason)
             else
-              scoreKeeper.subtract(name, from, room, reason)
+              scoreKeeper.subtractX(name, from, magnitude, room, reason)
 
     # if we got a score, then display all the things and fire off events!
     if score?

src/scorekeeper.coffee

@@ -38,28 +38,34 @@ class ScoreKeeper
     [@storage.scores[user], @storage.reasons[user][reason] || "none"]
 
   add: (user, from, room, reason) ->
+    @addX(user, from, 1, room, reason)
+
+  addX: (user, from, magnitude, room, reason) ->
     if @validate(user, from)
       user = @getUser(user)
-      @storage.scores[user]++
+      @storage.scores[user] = @storage.scores[user] + magnitude
       @storage.reasons[user] ||= {}
 
       if reason
         @storage.reasons[user][reason] ||= 0
-        @storage.reasons[user][reason]++
+        @storage.reasons[user][reason] += magnitude
 
       @saveUser(user, from, room, reason)
     else
       [null, null]
 
   subtract: (user, from, room, reason) ->
+    @subtractX(user, from, 1, room, reason)
+
+  subtractX: (user, from, magnitude, room, reason) ->
     if @validate(user, from)
       user = @getUser(user)
-      @storage.scores[user]--
+      @storage.scores[user] = @storage.scores[user] - magnitude
       @storage.reasons[user] ||= {}
 
       if reason
         @storage.reasons[user][reason] ||= 0
-        @storage.reasons[user][reason]--
+        @storage.reasons[user][reason] -= magnitude
 
       @saveUser(user, from, room, reason)
     else