NAME
    v6 - An experimental Perl 6 implementation

SYNOPSIS
        # file: hello_world.pl
        use v6-alpha;
        "hello, world".say;

        $ perl hello_world.pl

    "v6-alpha" can be used in one-liners:

        $ perl -e 'use v6-alpha' ' 42.say '
        $ perl -e 'use v6-alpha' - ' 42.say '
        $ perl -e 'use v6-alpha' - --compile-only ' 42.say '
        $ perl -e 'use v6-alpha' - -Ilib6 ' 42.say '
        $ echo 42.say | perl -e 'use v6-alpha'

    "v6.pm" can also be used as a plain program. This examples assume that
    v6.pm is in the "./lib" directory:

        $ perl lib/v6.pm -e 'for 1,2,3 -> $x { say $x }'
        $ perl lib/v6.pm --compile-only -e '<hello>.say;'

DESCRIPTION
    The "v6" module is a front-end to the experimental Perl6-to-Perl5
    compiler.

    The current state of this compiler implementation only provides a small
    sample of Perl 6 syntax and semantics.

  Other Perl 6 implementations
    The Pugs/Haskell Perl 6 is currently the most complete implementation.
    Pugs currently has some issues with Perl 5 interoperability.

    Parrot Perl 6 aims to become the best performing implementation, but
    currently is less complete than both "v6.pm" and Pugs/Haskell.

    Although running "v6.pm" requires the installation of a lot of Perl 5
    modules, it is completely independent of Pugs or Parrot.

REQUIREMENTS
    - The source file header must be valid perl5 *and* perl6 code.

    This is a valid header:

        #!/usr/bin/perl
        use v6-alpha;

    * it executes perl5

    * perl5 will call the "v6.pm" module.

    This is an invalid header:

        #!/usr/bin/pugs
        use v6;

    * it tells perl5 to execute "/usr/bin/pugs".

    * it tells perl5 that Perl v6.0.0 required.

    - The "Pugs::Compiler::Rule" module must be properly installed.

    An improperly installed "Pugs::Compiler::Rule" module would prevent the
    Perl 6 compiler from bootstrapping.

    If that is the case, running "Makefile.PL" and "make" in
    "Pugs::Compiler::Rule" should fix the problem.

    - The perl5 executable must have PMC support.

    PMC support is required for loading precompiled Perl 6 files.

    If you see the error below, it may happen that your perl was compiled
    without PMC support.

      Can't locate object method "compile" via package "Pugs::Compiler::Perl6"

    Please see <http://rt.cpan.org/Public/Bug/Display.html?id=20152>

ENVIRONMENT VARIABLES
    * PERL6LIB

    Same usage as PERL5LIB - sets the search path for Perl 6 modules.

    * V6DUMPAST

    If set, the compiler will dump the syntax tree to "STDOUT" just before
    emitting code, using "Data::Dumper".

    * V6NOTIDY

    If set, the compiler output will be much less readable, but there will
    be some improvement in compiler speed.

COMMAND LINE SWITCHES
    * --compile-only

    When using v6.pm from the command line, dumps the emitted code to
    "STDOUT" and then exit:

        $ perl -e 'use v6-alpha' - --compile-only ' 42.say '

        $ perl -Ilib lib/v6.pm --compile-only -e '<hello>.say;'

AUTHORS
    The Pugs Team <perl6-compiler@perl.org>.

SEE ALSO
    The Perl 6 homepage at <http://dev.perl.org/perl6>.

    - the Perl 6 Synopsis: <http://dev.perl.org/perl6/doc/synopsis.html>.

    The Pugs homepage at <http://pugscode.org/>.

    The Parrot homepage at <http://www.parrotcode.org>.

COPYRIGHT
    Copyright 2006 by Flavio Soibelmann Glock and others.

    This program is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.

    See <http://www.perl.com/perl/misc/Artistic.html>