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.\" ========================================================================
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.\" ========================================================================
.\"
.IX Title "Data::Show 3pm"
.TH Data::Show 3pm "2012-01-20" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Data::Show \- Dump data structures with name and point\-of\-origin
.SH "VERSION"
.IX Header "VERSION"
This document describes Data::Show version 0.002001
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    use Data::Show;
\&
\&    show %foo;
\&    show @bar;
\&    show (
\&        @bar,
\&        $baz,
\&    );
\&    show $baz;
\&    show $ref;
\&    show @bar[do{1..2;}];
\&    show 2*3;
\&    show \*(Aqa+b\*(Aq;
\&    show 100 * sqrt length $baz;
\&    show $foo{q[;{{{]};
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module provides a simple wrapper around the Data::Dump module.
.PP
A call to \f(CW\*(C`show\*(C'\fR data-dumps its arguments, prefaced
by a divider line that reports the arguments and the
file and line from which \f(CW\*(C`show()\*(C'\fR was called.
.PP
For example, the code in the \s-1SYNOPSIS\s0 would produce
something like:
.PP
.Vb 1
\&    ======(  %foo  )========================[ \*(Aqdemo.pl\*(Aq, line 11 ]======
\&
\&        { foo => 1, food => \*(Aqb\*(Aq, foon => [3, 4, 5, 6, 7, 8, 9, 10] }
\&
\&
\&    ======(  @bar  )========================[ \*(Aqdemo.pl\*(Aq, line 12 ]======
\&
\&        ["b", "a", "r"]
\&
\&
\&    ======(  @bar, $baz,  )=================[ \*(Aqdemo.pl\*(Aq, line 13 ]======
\&
\&        ("b", "a", "r", "baz")
\&
\&
\&    ======(  $baz  )========================[ \*(Aqdemo.pl\*(Aq, line 17 ]======
\&
\&        "baz"
\&
\&
\&    ======(  $ref  )========================[ \*(Aqdemo.pl\*(Aq, line 18 ]======
\&
\&        ["b", "a", "r"]
\&
\&
\&    ======(  @bar[do{1..2;}]  )=============[ \*(Aqdemo.pl\*(Aq, line 19 ]======
\&
\&        ("a", "r")
\&
\&
\&    ======(  2*3  )=========================[ \*(Aqdemo.pl\*(Aq, line 20 ]======
\&
\&        6
\&
\&
\&    ======(  \*(Aqa+b\*(Aq  )=======================[ \*(Aqdemo.pl\*(Aq, line 21 ]======
\&
\&        "a+b"
\&
\&
\&    ======(  100 * sqrt length $baz  )======[ \*(Aqdemo.pl\*(Aq, line 22 ]======
\&
\&        "173.205080756888"
\&
\&
\&    ======(  $foo{q[;{{{]}  )===============[ \*(Aqdemo.pl\*(Aq, line 23 ]======
\&
\&        undef
\&
\&
\&    ======(  \*(Aqfoo\*(Aq ~~ m/;{\e/{/  )===========[ \*(Aqdemo.pl\*(Aq, line 25 ]======
\&
\&        ""
.Ve
.SH "INTERFACE"
.IX Header "INTERFACE"
.ie n .IP """show()""" 4
.el .IP "\f(CWshow()\fR" 4
.IX Item "show()"
This is the only subroutine provided by the module.
It is always exported.
.Sp
\&\f(CW\*(C`show()\*(C'\fR can be called with any number of arguments and data-dumps them
all with a suitable header indicating the arguments' names, and the file
and line from which \f(CW\*(C`show()\*(C'\fR was called.
.Sp
\&\f(CW\*(C`show()\*(C'\fR does not return a useful value.
.SH "DIAGNOSTICS"
.IX Header "DIAGNOSTICS"
None, apart from those provided by Data::Dump;
.SH "CONFIGURATION AND ENVIRONMENT"
.IX Header "CONFIGURATION AND ENVIRONMENT"
Data::Show requires no configuration files or environment variables.
.SH "DEPENDENCIES"
.IX Header "DEPENDENCIES"
Only works under Perl 5.10 and later.
.PP
Requires the Data::Dump module.
.SH "INCOMPATIBILITIES"
.IX Header "INCOMPATIBILITIES"
None reported.
.SH "BUGS AND LIMITATIONS"
.IX Header "BUGS AND LIMITATIONS"
Uses sophisticated regexes to parse out the argument list from the
source. Hence subject to the usual limitations of this technique
(namely, that it may get the argument list wrong occasionally).
.PP
No bugs have been reported.
.PP
Please report any bugs or feature requests to
\&\f(CW\*(C`bug\-data\-show@rt.cpan.org\*(C'\fR, or through the web interface at
<http://rt.cpan.org>.
.SH "AUTHOR"
.IX Header "AUTHOR"
Damian Conway  \f(CW\*(C`<DCONWAY@CPAN.org>\*(C'\fR
.SH "LICENCE AND COPYRIGHT"
.IX Header "LICENCE AND COPYRIGHT"
Copyright (c) 2010, Damian Conway \f(CW\*(C`<DCONWAY@CPAN.org>\*(C'\fR. All rights reserved.
.PP
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See perlartistic.
.SH "DISCLAIMER OF WARRANTY"
.IX Header "DISCLAIMER OF WARRANTY"
\&\s-1BECAUSE\s0 \s-1THIS\s0 \s-1SOFTWARE\s0 \s-1IS\s0 \s-1LICENSED\s0 \s-1FREE\s0 \s-1OF\s0 \s-1CHARGE\s0, \s-1THERE\s0 \s-1IS\s0 \s-1NO\s0 \s-1WARRANTY\s0
\&\s-1FOR\s0 \s-1THE\s0 \s-1SOFTWARE\s0, \s-1TO\s0 \s-1THE\s0 \s-1EXTENT\s0 \s-1PERMITTED\s0 \s-1BY\s0 \s-1APPLICABLE\s0 \s-1LAW\s0. \s-1EXCEPT\s0 \s-1WHEN\s0
\&\s-1OTHERWISE\s0 \s-1STATED\s0 \s-1IN\s0 \s-1WRITING\s0 \s-1THE\s0 \s-1COPYRIGHT\s0 \s-1HOLDERS\s0 \s-1AND/OR\s0 \s-1OTHER\s0 \s-1PARTIES\s0
\&\s-1PROVIDE\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \*(L"\s-1AS\s0 \s-1IS\s0\*(R" \s-1WITHOUT\s0 \s-1WARRANTY\s0 \s-1OF\s0 \s-1ANY\s0 \s-1KIND\s0, \s-1EITHER\s0
\&\s-1EXPRESSED\s0 \s-1OR\s0 \s-1IMPLIED\s0, \s-1INCLUDING\s0, \s-1BUT\s0 \s-1NOT\s0 \s-1LIMITED\s0 \s-1TO\s0, \s-1THE\s0 \s-1IMPLIED\s0
\&\s-1WARRANTIES\s0 \s-1OF\s0 \s-1MERCHANTABILITY\s0 \s-1AND\s0 \s-1FITNESS\s0 \s-1FOR\s0 A \s-1PARTICULAR\s0 \s-1PURPOSE\s0. \s-1THE\s0
\&\s-1ENTIRE\s0 \s-1RISK\s0 \s-1AS\s0 \s-1TO\s0 \s-1THE\s0 \s-1QUALITY\s0 \s-1AND\s0 \s-1PERFORMANCE\s0 \s-1OF\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1IS\s0 \s-1WITH\s0
\&\s-1YOU\s0. \s-1SHOULD\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1PROVE\s0 \s-1DEFECTIVE\s0, \s-1YOU\s0 \s-1ASSUME\s0 \s-1THE\s0 \s-1COST\s0 \s-1OF\s0 \s-1ALL\s0
\&\s-1NECESSARY\s0 \s-1SERVICING\s0, \s-1REPAIR\s0, \s-1OR\s0 \s-1CORRECTION\s0.
.PP
\&\s-1IN\s0 \s-1NO\s0 \s-1EVENT\s0 \s-1UNLESS\s0 \s-1REQUIRED\s0 \s-1BY\s0 \s-1APPLICABLE\s0 \s-1LAW\s0 \s-1OR\s0 \s-1AGREED\s0 \s-1TO\s0 \s-1IN\s0 \s-1WRITING\s0
\&\s-1WILL\s0 \s-1ANY\s0 \s-1COPYRIGHT\s0 \s-1HOLDER\s0, \s-1OR\s0 \s-1ANY\s0 \s-1OTHER\s0 \s-1PARTY\s0 \s-1WHO\s0 \s-1MAY\s0 \s-1MODIFY\s0 \s-1AND/OR\s0
\&\s-1REDISTRIBUTE\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1AS\s0 \s-1PERMITTED\s0 \s-1BY\s0 \s-1THE\s0 \s-1ABOVE\s0 \s-1LICENCE\s0, \s-1BE\s0
\&\s-1LIABLE\s0 \s-1TO\s0 \s-1YOU\s0 \s-1FOR\s0 \s-1DAMAGES\s0, \s-1INCLUDING\s0 \s-1ANY\s0 \s-1GENERAL\s0, \s-1SPECIAL\s0, \s-1INCIDENTAL\s0,
\&\s-1OR\s0 \s-1CONSEQUENTIAL\s0 \s-1DAMAGES\s0 \s-1ARISING\s0 \s-1OUT\s0 \s-1OF\s0 \s-1THE\s0 \s-1USE\s0 \s-1OR\s0 \s-1INABILITY\s0 \s-1TO\s0 \s-1USE\s0
\&\s-1THE\s0 \s-1SOFTWARE\s0 (\s-1INCLUDING\s0 \s-1BUT\s0 \s-1NOT\s0 \s-1LIMITED\s0 \s-1TO\s0 \s-1LOSS\s0 \s-1OF\s0 \s-1DATA\s0 \s-1OR\s0 \s-1DATA\s0 \s-1BEING\s0
\&\s-1RENDERED\s0 \s-1INACCURATE\s0 \s-1OR\s0 \s-1LOSSES\s0 \s-1SUSTAINED\s0 \s-1BY\s0 \s-1YOU\s0 \s-1OR\s0 \s-1THIRD\s0 \s-1PARTIES\s0 \s-1OR\s0 A
\&\s-1FAILURE\s0 \s-1OF\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1TO\s0 \s-1OPERATE\s0 \s-1WITH\s0 \s-1ANY\s0 \s-1OTHER\s0 \s-1SOFTWARE\s0), \s-1EVEN\s0 \s-1IF\s0
\&\s-1SUCH\s0 \s-1HOLDER\s0 \s-1OR\s0 \s-1OTHER\s0 \s-1PARTY\s0 \s-1HAS\s0 \s-1BEEN\s0 \s-1ADVISED\s0 \s-1OF\s0 \s-1THE\s0 \s-1POSSIBILITY\s0 \s-1OF\s0
\&\s-1SUCH\s0 \s-1DAMAGES\s0.