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Devel::REPL::Plugin::OUsertContributed PerlDevel::REPL::Plugin::OutputCache(3)

NAME
       Devel::REPL::Plugin::OutputCache	- Remember past	results, _ is most
       recent

VERSION
       version 1.003028

SYNOPSIS
	   > 21	/ 7
	   3
	   > _ * _
	   9
	   > sub { die "later" }
	   sub { die "later" }
	   > _->()
	   Runtime error: later

DESCRIPTION
       Re-using	results	is very	useful when working in a REPL. With
       "OutputCache" you get "_", which	holds the past result. The benefit is
       that you	can build up your result instead of having to type it in all
       at once,	or store it in intermediate variables. "OutputCache" also
       provides	"$_REPL->output_cache",	an array reference of all results in
       this session.

       Devel::REPL already has a similar plugin, Devel::REPL::Plugin::History.
       There are some key differences though:

       Input vs	Output
	   "History" remembers input. "OutputCache" remembers output.

       Munging vs Pure Perl
	   "History" performs regular expressions on your input. "OutputCache"
	   provides the	"_" sub	as a hook to get the most recent result, and
	   "$_REPL->output_cache" for any other	results.

       Principle of Least Surprise
	   "History" will replace exclamation points in	any part of the	input.
	   This	is problematic if you accidentally include one in a string, or
	   in a	"not" expression. "OutputCache"	uses a regular (if oddly
	   named) subroutine so	Perl does the parsing -- no surprises.

CAVEATS
       The "_" sub is shared across all	packages. This means that if a module
       is using	the "_"	sub, then there	is a conflict and you should not use
       this plugin. For	example, Jifty uses the	"_" sub	for localization.
       Jifty is	the only known user.

SEE ALSO
       "Devel::REPL", "Devel::REPL::Plugin::History"

SUPPORT
       Bugs may	be submitted through the RT bug	tracker
       <https://rt.cpan.org/Public/Dist/Display.html?Name=Devel-REPL> (or
       bug-Devel-REPL@rt.cpan.org <mailto:bug-Devel-REPL@rt.cpan.org>).

       There is	also an	irc channel available for users	of this	distribution,
       at "#devel" on "irc.perl.org" <irc://irc.perl.org/#devel-repl>.

AUTHOR
       Shawn M Moore, "<sartak at gmail	dot com>"

COPYRIGHT AND LICENSE
       Copyright (C) 2007 by Shawn M Moore

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

perl v5.24.1			  2016-02-1Devel::REPL::Plugin::OutputCache(3)

NAME | VERSION | SYNOPSIS | DESCRIPTION | CAVEATS | SEE ALSO | SUPPORT | AUTHOR | COPYRIGHT AND LICENSE

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