gffnocache.rb in bio-gff3-0.8.2

- old
+ new

@@ -13,20 +13,23 @@
 
     module Digest
 
       module NoCacheHelpers 
 
+        # Module to fetch a line from GFF3 file and returns a parsed 
+        # record
         module SeekRec
           # Fetch a record using fh and file seek position
           def SeekRec::fetch(fh,fpos)
             return nil if fh==nil or fpos==nil
             fh.seek(fpos)
             GFF::GFF3::FileRecord.new(fpos, fh.gets)
           end
         end
 
-        # The hardwired to file RecList
+        # Helper class which gives Hash-like access to the 
+        # no-cache GFF3 file
         class SeekRecList 
           def initialize fh
             @fh = fh
             @h = {}
           end
@@ -47,9 +50,10 @@
               yield id, self[id]
             end
           end
         end
 
+        # List of ids
         class SeekLinkedRecs < Hash
           include Helpers::Error
           def add id, rec
             info "Adding #{rec.feature_type} <#{id}>"
             self[id] = [] if self[id] == nil