 --- slack.coffee.orig	2014-12-13 17:53:24.290393342 +0900
 +++ slack.coffee	2014-12-13 19:42:08.788464223 +0900
 @@ -8,6 +8,7 @@
 
   constructor: (robot) ->
     @robot = robot
 +    @botUserID = null
 
   run: ->
     # Take our options from the environment, and set otherwise suitable defaults
 @@ -44,6 +45,13 @@
   loggedIn: (self, team) =>
     @robot.logger.info "Logged in as #{self.name} of #{team.name}, but not yet connected"
 
 +    # Go through the list of known users and find the name that matches ours
 +    for id, user of @client.users
 +      if user.is_bot and user.name == self.name
 +        @botUserID = id
 +        break
 +    @robot.logger.info "Bot's Slack user ID is #{@botUserID}"
 +
     # Provide our name to Hubot
     @robot.name = self.name
 
 @@ -103,6 +111,11 @@
       # If this is a DM, pretend it was addressed to us
       if msg.getChannelType() == 'DM'
         txt = "#{@robot.name} #{txt}"
 +      # Or, if we were @-mentioned
 +      else if matches = txt.match(/<@([^>]+)>[:,]?\s?(.*)/)
 +        [userID, someText] = matches[1..2]
 +        if @botUserID and (userID == @botUserID)
 +          txt = "#{@robot.name} #{someText}"
 
       @receive new TextMessage user, txt, msg.ts
 
 --- slack.coffee.orig	2014-12-13 17:53:24.290393342 +0900
 +++ slack.coffee	2014-12-13 17:53:51.421673532 +0900
 @@ -61,6 +61,24 @@
     @client.removeListener 'close', @.close
     @client.removeListener 'message', @.message
 
 +  ###################################################################
 +  # HTML helpers.
 +  ###################################################################
 +  unescapeHtml: (string) ->
 +    try
 +      string
 +        # Unescape entities
 +        .replace(/&amp;/g, '&')
 +        .replace(/&lt;/g, '<')
 +        .replace(/&gt;/g, '>')
 +
 +        # Convert markup into plain url string.
 +        .replace(/<((\bhttps?)[^|]+)(\|(.*))+>/g, '$1')
 +        .replace(/<((\bhttps?)(.*))?>/g, '$1')
 +    catch e
 +      @robot.logger.error "Failed to unescape HTML: #{e}"
 +      return ''
 +
   message: (msg) =>
     return if msg.hidden
     return if not msg.text and not msg.attachments
 @@ -96,7 +114,7 @@
 
     else
       # Build message text to respond to, including all attachments
 -      txt = msg.getBody()
 +      txt = @unescapeHtml msg.getBody()
 
       @robot.logger.debug "Received message: '#{txt}' in channel: #{channel.name}, from: #{user.name}"