Index: text-hyphen-1.0.0/lib/text/hyphen.rb
===================================================================
--- text-hyphen-1.0.0.orig/lib/text/hyphen.rb
+++ text-hyphen-1.0.0/lib/text/hyphen.rb
@@ -269,7 +269,8 @@ private
 
   def make_result_list(res) #:nodoc:
     r = []
-    res.each_with_index { |c, i| r <<  i * (c.to_i % 2) }
+    res_a = (res.is_a? Array) ? res : res.split(//)
+    res_a.each_with_index { |c, i| r <<  i * (c.to_i % 2) }
     r.reject { |i| i.to_i == 0 }
   end
 
Index: text-hyphen-1.0.0/tests/tc_text_hyphen.rb
===================================================================
--- text-hyphen-1.0.0.orig/tests/tc_text_hyphen.rb
+++ text-hyphen-1.0.0/tests/tc_text_hyphen.rb
@@ -12,7 +12,7 @@ class Test__Text__Hyphen < Test::Unit::T
                playback presents programmable representation)
   POINTS  = [
     [2, 4, 8],     # additional
-    [],            # declination
+    [3, 5, 7],     # declination
     [2],           # going
     [4],           # leaving
     [3, 4],        # maximize
@@ -24,11 +24,11 @@ class Test__Text__Hyphen < Test::Unit::T
     [3, 5, 8, 10]  # representation
   ]
 
-  VISUAL = %w(ad-di-tion-al declination go-ing leav-ing max-i-mizes
+  VISUAL = %w(ad-di-tion-al dec-li-na-tion go-ing leav-ing max-i-mizes
               mul-ti-ple pe-ter play-back presents pro-gram-mable
               rep-re-sen-ta-tion)
 
-  HY_TO   = [ %w(addi- tional), [nil, 'declination'], %w(go- ing),
+  HY_TO   = [ %w(addi- tional), %w(dec- lination), %w(go- ing),
               %w(leav- ing), %w(maxi- mizes), %w(mul- tiple), %w(pe- ter),
               %w(play- back), [nil, 'presents'], %w(pro- grammable),
               %w(rep- resentation)]