PerlCaffeine - Compiling Perl to Java']Java

This paper describes PerlCaffeine, and extensible Perl-to-Java compiler. A Perl program is parsed and translated into semantically equivalent Java source code. This has two major benefits for the Perl programming community. Programmers can write code in Perl (their favorite language) and translate it into Java whenever that language is most appropriate. Compiling Perl to Java provides another approach to inter-language use, without having to provide a Perl interpreter inside Java or vice versa. A description of the system's design and implementation is given, together with details of how the semantics of Perl are mapped to Java and what is involved in extending the system to a more complete Perl subset. The paper also reports some preliminary performance results.