String::Approx lets you match and substitute strings approximately. With this you can emulate errors: typing errors, spelling errors, closely related vocabularies (colour color), genetic mutations (GAG ACT), abbreviations (McScot, MacScot). EXTREMELY USEFUL FOR WRITING LANGUAGE TESTS AND QUIZZES ! Jarkko Hietaniemi WWW: http://search.cpan.org/dist/String-Approx/