libstrscan-ruby1.8 1.8.1+1.8.2pre4-1ubuntu0.5 (amd64 binary) in ubuntu hoary

 strscan provides a lexical scanner class which is called
 StringScanner. The instance tries to match with regexp for some
 strings. If matched then the scanner advances the internal pointer
 and returns the matched string.
 .
 This package provides the strscan library for Ruby 1.8.