sup

commit 9c6c6d3425358caf89c10097312cbe26d16059b6
parent 0b5f06e2c34d7aa986bfdcecc59d9fdf6650a88a
Author: Rich Lane <rlane@club.cc.cmu.edu>
Date:   Wed, 24 Mar 2010 21:27:45 -0700

factor each_source_info into Index

Diffstat:

2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/lib/sup/index.rb b/lib/sup/index.rb
@@ -276,6 +276,14 @@ EOS
     nil
   end
 
+  ## Yields (in lexicographical order) the source infos of all locations from the given source
+  def each_source_info source_id, &b
+    prefix = mkterm :location, source_id, ''
+    each_prefixed_term prefix do |x|
+      yield x[prefix.length..-1]
+    end
+  end
+
   class ParseError < StandardError; end
 
   ## parse a query string from the user. returns a query object
diff --git a/lib/sup/mbox.rb b/lib/sup/mbox.rb
@@ -142,8 +142,7 @@ class MBox < Source
   ## TODO optimize this by iterating over allterms list backwards or
   ## storing source_info negated
   def last_indexed_message
-    prefix = "J#{[@id].pack('n')}" # XXX index internal
-    Enumerator.new(Index, :each_prefixed_term, prefix).map { |x| x[prefix.length..-1].to_i }.max
+    Enumerator.new(Index, :each_source_info, self.id).map(&:to_i).max
   end
 
   ## offset of first new message or nil