How we did it:
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Tim Jenness, Simon Cozens
An explanation of how to expand the functionality and usefulness of the Perl programming language, this guide delves into the complex issues of using real code examples from the Perl source. Detailed is how to use Perl from C programs, such as writing interfaces to C libraries, implementing Perl callbacks for C libraries, and passing Perl hashes and arrays between Perl and C. Additionally, developers are provided with an API reference for the internal C interface to Perl and a reference on the typemap system.