Polyglot (computing) as a DOS batch file, then re-runs itself in Perl: This allows creating Perl scripts that can be run on DOS systems with minimal effort. Polyglot (computing) In computing, a polyglot is a computer program or script written in a valid form of multiple programming languages, which performs the same operations or output independent of the programming language used to compile or interpret it. Generally polyglots are written in a combination of C (which allows redefinition of tokens with a preprocessor) and a scripting language such as Lisp, Perl or sh. Polyglot markup is similar, but about markup language context.
Who is a Jew? Jews see being Jewish as predominantly a matter of ancestry and culture, rather than religion. The definition of who is a Jew varies according to whether it is being considered by Jews on the basis of religious law and tradition or self-identification, or by non-Jews for other reasons, sometimes for prejudicial purposes. Because Jewish identity can include characteristics of an ethnicity, a religion, or peoplehood, the definition depends on either traditional or newer interpretations of Jewish law and custom. Israel's Law of Return stipulates that a Jew is someone with a Jewish mother or someone who has converted to Judaism