chise/chisedb.rb

   1 # Copyright (C) 2002-2004 Kouichirou Eto, All rights reserved.
   2
   3 require "singleton"
   4 require "chise/rbchise"
   5
   6 module CHISE
   7   class ChiseDB
   8     include Singleton
   9
  10     def initialize
  11       @ds = DataSource.new
  12     end
  13
  14     def location() @ds.location; end
  15
  16     def get_feature(f)
  17       @ds.get_feature(f)
  18     end
  19
  20     def get_ccs(c)
  21       @ds.get_ccs(c)
  22     end
  23
  24     def decode_char(name, cid)
  25       v = @ds.decode_char(name, cid)
  26       v
  27     end
  28
  29     def load_feature(name, cid)
  30       v = @ds.load_feature(name, cid)
  31       v = normalize_value(v)
  32       v
  33     end
  34
  35     def each_feature
  36       @ds.each_feature {|f|
  37         yield f
  38       }
  39     end
  40
  41     private
  42
  43     def normalize_value(v)
  44       return v if v.nil?
  45       return v.to_i if /\A\d+\Z/ =~ v # number?
  46       return $1 if /\A"(.+)"\Z/ =~ v # remove surrounding "
  47       #return v.sub(/\A\?/, "") if v =~ /\A\?/ # remove ? in the head
  48       #return parse_sexp(v) if v =~ /\A\(.+\)\Z/ # parse sexp # not yet
  49       v
  50     end
  51   end
  52 end