# -*- coding: utf-8 -*-
# Copyright (C) 2011-2015 Rocky Bernstein <rocky@cpan.org>
use warnings; no warnings 'redefine'; no warnings 'once';
use rlib '../../../../../..';
# eval "use Data::Dumper::Perltidy";
package Devel::Trepan::CmdProcessor::Command::Set::Display::Eval;
use Devel::Trepan::CmdProcessor::Command::Subcmd::Subsubcmd;
use strict;
use vars qw(@ISA @SUBCMD_VARS);
@ISA = qw(Devel::Trepan::CmdProcessor::Command::Subsubcmd);
# Values inherited from parent
use vars @Devel::Trepan::CmdProcessor::Command::Subsubcmd::SUBCMD_VARS;
our $CMD = 'set display eval';
my @DISPLAY_TYPES = @Devel::Trepan::CmdProcessor::DISPLAY_TYPES;
my $param = join('|', @DISPLAY_TYPES);
=pod
=head2 Synopsis:
=cut
our $HELP = <<"HELP";
=pod
B<set display eval> {B<concise>|B<ddp>|B<dumper>|B<tidy> [printer options]}
Set how you want evaluation results to be shown.
Devel::Trepan relegates how Perl the contents of expressions variables
are displayed to one of the many Perl modules designed for this
purpose. Below is a list of the option name and the corresponding Perl
module that gets used for that option. I<Note: the order given is the
order tried by default on startup.>
=over
=item *
C<ddp> E<mdash> L<Data::Printer>
=item *
C<tidy> E<mdash> L<Data::Dumper::Perltidy>
=item *
C<concise> E<mdash> L<Data::Dumper::Concise>
=item *
C<dumper> E<mdash> L<Data::Dumper>
=back
See the respective display manual pages for how to influence display
for a given module.
=head2 Examples:
set display eval dumper
set display eval ddp # works only if Data::Printer is around
set display eval ddp { colored => 0 }
set display eval tidy # works if Data::Dumper::Perltidy is around
set display eval tidy -nst -mbl=2 -pt=0 -nola
=head2 See also:
L<C<show display eval>|Devel::Trepan::CmdProcessor::Command::Show::Display::Eval>,
L<C<eval>|Devel::Trepan::CmdProcessor::Command::Eval>,
L<C<set auto eval>|Devel::Trepan::CmdProcessor::Command::Set::Auto::Eval>,
L<Data::Dumper::Perltidy>, and
L<Data::Printer>.
=cut
HELP
our $MIN_ABBREV = length('ev');
use constant MIN_ARGS => 1;
use constant MAX_ARGS => 1;
our $SHORT_HELP = 'Set how you want the evaluation results shown';
sub complete($$)
{
my ($self, $prefix) = @_;
Devel::Trepan::Complete::complete_token(\@DISPLAY_TYPES, $prefix);
}
sub run($$)
{
my ($self, $args) = @_;
my $proc = $self->{proc};
my @args = @{$args};
my $evaltype = $args[3];
my @result = grep($_ eq $evaltype, @DISPLAY_TYPES);
if (1 == scalar @result) {
my $key = $self->{subcmd_setting_key};
$proc->{settings}{$key} = $evaltype;
my $argc = scalar @args;
if ($argc > 4) {
my $dp_args = join(' ', @{$args[4..$argc-1]});
if ($evaltype eq 'ddp') {
eval("use Data::Printer $dp_args");
} elsif ($evaltype eq 'tidy') {
eval "$Data::Dumper::Perltidy::ARGV = '$dp_args'";
}
}
} else {
my $or_list = join(', or ', map{"'$_'"} @DISPLAY_TYPES);
$proc->errmsg("Expecting either $or_list; got ${evaltype}");
return;
}
$proc->{commands}{show}->run(['show', 'display', 'eval']);
}
unless (caller) {
require Devel::Trepan::CmdProcessor;
my $cmdproc = Devel::Trepan::CmdProcessor->new();
my $subcmd = Devel::Trepan::CmdProcessor::Command::Set->new($cmdproc, 'set');
my $parent_cmd = Devel::Trepan::CmdProcessor::Command::Set::Display->new($subcmd, 'display');
my $cmd = __PACKAGE__->new($parent_cmd, 'eval');
# Add common routine
foreach my $field (qw(min_abbrev name)) {
printf "Field %s is: %s\n", $field, $cmd->{$field};
}
my @args = qw(set display eval dumper);
$cmd->run(\@args);
@args = qw(set display eval concise);
$cmd->run(\@args);
}
1;