* tool/transcode-tblgen.rb (citrus_decode_mapsrc): support older 1.8.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19116 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 3 deletions

diff --git a/tool/transcode-tblgen.rb b/tool/transcode-tblgen.rb
index 207cb5118d..3032b115ac 100644
--- a/tool/transcode-tblgen.rb
+++ b/tool/transcode-tblgen.rb
@@ -486,13 +486,13 @@ def citrus_decode_mapsrc(ces, csid, mapsrcs)
   mapsrcs.split(',').each do |mapsrc|
     path = [$srcdir]
     mode = nil
-    if mapsrc.start_with?('UCS')
+    if mapsrc.rindex('UCS', 0)
       mode = :from_ucs
       from = mapsrc[4..-1]
-      path << SUBDIR.find{|x| from.start_with?(x) }
+      path << SUBDIR.find{|x| from.rindex(x, 0) }
     else
       mode = :to_ucs
-      path << SUBDIR.find{|x| mapsrc.start_with?(x) }
+      path << SUBDIR.find{|x| mapsrc.rindex(x, 0) }
     end
     path << mapsrc.gsub(':', '@')
     path = File.join(*path)