in reply to Only perl parses perl hash notation?

And your question is ... ?

Dave.

  • Comment on Re: Only perl parses perl hash notation?

Replies are listed 'Best First'.
Re^2: Only perl parses perl hash notation?
by Eyck (Priest) on Oct 05, 2004 at 09:49 UTC
    Is there anything else but perl that can parse perl hash notation?

      Probably not off the shelf, but I'm sure you could write a little app to parse it using any language that takes your fancy - it's only plain text when it comes down to it after all.

      --- Jay

      All code is untested unless otherwise stated.

      Note that perl is written in C, not Perl. So, it's C parsing Perl hash notation - not Perl. :-)
        As with many things in the Unix universe, the saying, "Nothing can parse Perl except perl" is case-sensitive. The saying means, "Nothing can parse the language of Perl except the executable called perl."

        The Windows equivalent would be: "Nothing can parse Perl except PERL.EXE."

        The saying is NOT trying to suggest that a Perl script can flawlessly parse Perl language snippets. That is a common misconception and misunderstanding. A parser written in Perl can do a lot, but any parser you're likely(*) to write in Perl will fail to parse all of the Perl language.

        The wisdom in this koan is to realize that the Perl language is so crufty with special-cases and funky exceptions to its own grammars that it would be folly to try to parse any Perl script by writing a parser from scratch. Even the human brain can't always parse Perl in many cases. You'll get hung up on the many years of grammar evolution.

        (*) Unless you're implementing Perl6, which is really just using Perl6 to plan Perl6.

        --
        [ e d @ h a l l e y . c c ]