Parse::Native

Parse::Native is a Perl extension that enables you to parse in your native language. It provides a simple structure where you can define the grammar using pure Perl code. The SYNOPSIS of this extension includes the use of Parse::Native, the name of the grammar, a rule within the grammar, and a parsing subroutine.

Using Parse::Native has several advantages over other parsers that use intermediate languages to define their grammars. When an external language is used to define the grammar, translation occurs, and the grammar is converted into Perl code. However, errors in the intermediate grammar cause run time errors in the final code. These errors are reported in reference to the generated Perl code, making it difficult to determine which part of the intermediate grammar caused the error.

The issue is further compounded when the intermediate grammar allows users to embed Perl code within their grammar. Such embedded code is copied to the generated code by the parser. If a run time error occurs while running the user-written code within the generated code, Perl reports an error using line numbers and filenames that refer to the generated code. This makes it nearly impossible to identify where the error originated within the intermediate grammar.

Using Parse::Native eliminates these issues as it allows you to write the grammar in pure Perl code. This allows for easy identification of run time errors, and the user does not have to deal with the complicated task of identifying where the error originated within the intermediate grammar.

In summary, Parse::Native offers a simple yet advanced way of parsing input in your native language. Its unique approach provides the convenience of defining the grammar using pure Perl code, which makes it easier to identify and resolve run time errors.