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Re: Why no one port perl5 to Parrot?

by moritz (Cardinal)
on Nov 27, 2012 at 05:56 UTC ( #1005795=note: print w/replies, xml ) Need Help??

in reply to Why no one port perl5 to Parrot?

There are lots of hurdles that prevent porting of Perl 5 to a different backend than what it currently has, and Parrot in particular:

  • Perl 5 is not specified, but dictated by the current implementation
  • Perl 5 has some weird behavior in quite many places, and it's nigh impossible to reproduce the same behavior with a different implementation
  • XS. Do I need to say more?
  • Whenever you port a high-level language with as many quirks as Perl 5 has to a different runtime that wasn't specifically designed to support it, you get quite some runtime overhead, making the port slower than the C implementation, even if the new backend is faster in places.
  • Parrot still lacks the maturity that Perl 5 needs in lots of areas (IO, threads, performance).
  • Man power. Porting any non-trivial language to $anywhere is a huge effort, and needs hackers that stay committed over a long time, and invest vast amounts of time and energy.

While many folks agree that having Perl 5 on Parrot would be a nice thing, that alone simply isn't enough to make it happen.

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[thezip]: Is there an analogy for '&' (ie. run commandline process in background) for Windows commandline?
[Corion]: thezip: start "some title" path\to\that\ application, but that will open another console window
[Corion]: thezip: If you want to confuse your users, use system(1, "that\\command" );, which will make Perl launch it in the background
[Corion]: That will keep the console window open even though the user can't type into it anymore
[thezip]: So I have a script that generates a log file. After script completion, I want tohave VIM open this logfile.

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