view release on metacpan or  search on metacpan

inc/Pod/Markdown.pm  view on Meta::CPAN

    # POD verbatim can start with any number of spaces (or tabs)
    # markdown should be 4 spaces (or a tab)
    # so indent any paragraphs so that all lines start with at least 4 spaces
    my @lines = split /\n/, $paragraph;
    my $indent = ' ' x 4;
    foreach my $line ( @lines ){
        next unless $line =~ m/^( +)/;
        # find the smallest indentation
        $indent = $1 if length($1) < length($indent);
    }
    if( (my $smallest = length($indent)) < 4 ){
        # invert to get what needs to be prepended
        $indent = ' ' x (4 - $smallest);
        # leave tabs alone
        $paragraph = join "\n", map { /^\t/ ? $_ : $indent . $_ } @lines;
    }

    $parser->_save($paragraph);
}

sub textblock {
    my ($parser, $paragraph, $line_num) = @_;
    my $data = $parser->_private;

    # interpolate the paragraph for embebed sequences
    $paragraph = $parser->interpolate($paragraph, $line_num);

    # clean the empty lines
    $paragraph = $parser->_clean_text($paragraph);

    # searching ?
    if ($data->{searching} =~ m{title|author}xms) {
        $data->{ ucfirst $data->{searching} } = $paragraph;
        $data->{searching} = '';
    } elsif ($data->{searching} =~ m{listhead(huddled)?$}xms) {
        my $is_huddled = $1;
        $paragraph = sprintf '%s %s', $data->{ListType}, $paragraph;
        if ($is_huddled) {
            $paragraph = $parser->_unsave() . "\n" . $paragraph;
        }
        $data->{searching} = 'listpara';
    } elsif ($data->{searching} eq 'listpara') {
        $data->{searching} = '';
    }

    # save the text
    $parser->_save($paragraph);
}

sub interior_sequence {
    my ($self, $seq_command, $seq_argument, $pod_seq) = @_;

    # nested links are not allowed
    return sprintf '%s<%s>', $seq_command, $seq_argument
        if $seq_command eq 'L' && $self->_private->{InsideLink};

    my $i = 2;
    my %interiors = (
        'I' => sub { return '_'  . $_[$i] . '_'  },      # italic
        'B' => sub { return '__' . $_[$i] . '__' },      # bold
        'C' => sub { return '`'  . $_[$i] . '`'  },      # monospace
        'F' => sub { return '`'  . $_[$i] . '`'  },      # system path
        # non-breaking space
        'S' => sub {
            (my $s = $_[$i]) =~ s/ /&nbsp;/g;
            return $s;
        },
        'E' => sub {
            my $charname = $_[$i];
            return '<' if $charname eq 'lt';
            return '>' if $charname eq 'gt';
            return '|' if $charname eq 'verbar';
            return '/' if $charname eq 'sol';

            # convert legacy charnames to more modern ones (see perlpodspec)
            $charname =~ s/\A([lr])chevron\z/${1}aquo/;

            return "&#$1;" if $charname =~ /^0(x[0-9a-fA-Z]+)$/;

            $charname = oct($charname) if $charname =~ /^0\d+$/;

            return "&#$charname;"      if $charname =~ /^\d+$/;

            return "&$charname;";
        },
        'L' => \&_resolv_link,
        'X' => sub { '' },
        'Z' => sub { '' },
    );
    if (exists $interiors{$seq_command}) {
        my $code = $interiors{$seq_command};
        return $code->($self, $seq_command, $seq_argument, $pod_seq);
    } else {
        return sprintf '%s<%s>', $seq_command, $seq_argument;
    }
}

sub _resolv_link {
    my ($self, $cmd, $arg) = @_;

    local $self->_private->{InsideLink} = 1;

    my ($text, $inferred, $name, $section, $type) =
      # perlpodspec says formatting codes can occur in all parts of an L<>
      map { $_ && $self->interpolate($_, 1) }
      Pod::ParseLink::parselink($arg);
    my $url = '';

    # TODO: make url prefixes configurable

    if ($type eq 'url') {
        $url = $name;
    } elsif ($type eq 'man') {
        # stolen from Pod::Simple::(X)HTML
        my ($page, $part) = $name =~ /\A([^(]+)(?:[(](\S*)[)])?/;
        $url = 'http://man.he.net/man' . ($part || 1) . '/' . ($page || $name);
    } else {
        if ($name) {
            $url = 'http://search.cpan.org/perldoc?' . $name;
        }