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inc/Inline/denter.pm  view on Meta::CPAN

package Inline::denter;

use strict;
use Carp;

sub new {
    my $class = shift;
    bless {width => 4,
           comma => " : ",
           level => 0,
           tabwidth => 8,
          }, $class;
}

# Prevent a taint exception being thrown by AutoLoader.pm.
# Serves no other purpose.
sub DESTROY {
}

sub undent {
    local $/ = "\n";
    my ($o, $text) = @_;
    my ($comma) = $o->{comma};
    my $package = caller;
    $package = caller(1) if $package eq 'Inline::denter';
    %{$o->{xref}} = ();
    @{$o->{objects}} = ();
    @{$o->{context}} = ();
    my $glob = '';
    chomp $text;
    @{$o->{lines}} = split $/, $text;
    $o->{level} = 0;
    $o->{line} ||= 1;
    $o->_setup_line;
    while (not $o->{done}) {
        if ($o->{level} == 0 and
            $o->{content} =~ /^(\w+)\s*$comma\s*(.*)$/) {
            $o->{content} = $2;
            no strict 'refs';
            push @{$o->{objects}}, "$1";
        }
        push @{$o->{objects}}, $o->_undent_data;
    }
    return @{$o->{objects}};
}

sub _undent_data {
    my $o = shift;
    my ($obj, $class) = ('', '');
    my @refs;
    my %refs;
    while ($o->{content} =~ s/^\\(?:\((\w+)\))?((\%|\@|\$|\\).*)/$2/) {
        push @refs, $1;
        $refs{$1} = scalar @refs;
    }
    if ($o->{content} =~ /^([\%\@\$])
                          (\w(?:\w|::)*)?
                          \s*$/x
       ) {
        my $foo;
        $obj = ($1 eq '%') ? {} : ($1 eq '@') ? [] : \$foo;
        $class = $2 || '';
        if ($1 eq '%') {
            %$obj = $o->_undent_hash;
        }
        elsif ($1 eq '@') {
            @$obj = $o->_undent_array;
        }
        else {
            $$obj = $o->_undent_scalar;
        }
        bless $obj, $class if length $class;
    }
    elsif ($o->{content} =~ /^\?\s*$/) {
        $obj = $o->_undent_undef;