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|
#line 1
package Pod::Markdown;
use 5.006;
use strict;
use warnings;
our $VERSION = '0.02';
use base qw(Pod::Parser);
sub initialize {
my $self = shift;
$self->SUPER::initialize(@_);
$self->_private;
$self;
}
sub _private {
my $self = shift;
$self->{_MyParser} ||= {
Text => [], # final text
Indent => 0, # list indent levels counter
ListType => '-', # character on every item
searching => undef, # what are we searching for? (title, author etc.)
Title => undef, # page title
Author => undef, # page author
};
}
sub as_markdown {
my ($parser, %args) = @_;
my $data = $parser->_private;
my $lines = $data->{Text};
my @header;
if ($args{with_meta}) {
@header = $parser->_build_markdown_head;
}
join("\n" x 2, @header, @{$lines});
}
sub _build_markdown_head {
my $parser = shift;
my $data = $parser->_private;
my $paragraph = '';
if (defined $data->{Title}) {
$paragraph .= sprintf '[[meta title="%s"]]', $data->{Title};
}
if (defined $data->{Author}) {
$paragraph .= "\n" . sprintf '[[meta author="%s"]]', $data->{Author};
}
return $paragraph;
}
sub _save {
my ($parser, $text) = @_;
my $data = $parser->_private;
$text = $parser->_indent_text($text);
push @{ $data->{Text} }, $text;
return;
}
sub _indent_text {
my ($parser, $text) = @_;
my $data = $parser->_private;
my $level = $data->{Indent};
my $indent = undef;
if ($level > 0) {
$level--;
}
$indent = ' ' x ($level * 4);
my @lines = map { $indent . $_; } split(/\n/, $text);
return wantarray ? @lines : join("\n", @lines);
}
sub _clean_text {
my $parser = shift;
my $text = shift;
my @trimmed = grep { $_; } split(/\n/, $text);
return wantarray ? @trimmed : join("\n", @trimmed);
}
sub command {
my ($parser, $command, $paragraph, $line_num) = @_;
my $data = $parser->_private;
# cleaning the text
$paragraph = $parser->_clean_text($paragraph);
# is it a header ?
if ($command =~ m{head(\d)}xms) {
my $level = $1;
# the headers never are indented
$parser->_save(sprintf '%s %s', '#' x $level, $paragraph);
if ($level == 1) {
if ($paragraph =~ m{NAME}xmsi) {
$data->{searching} = 'title';
} elsif ($paragraph =~ m{AUTHOR}xmsi) {
$data->{searching} = 'author';
} else {
$data->{searching} = undef;
}
}
}
# opening a list ?
elsif ($command =~ m{over}xms) {
# update indent level
$data->{Indent}++;
# closing a list ?
} elsif ($command =~ m{back}xms) {
# decrement indent level
$data->{Indent}--;
} elsif ($command =~ m{item}xms) {
$parser->_save(sprintf '%s %s',
$data->{ListType}, $parser->interpolate($paragraph, $line_num));
}
# ignore other commands
return;
}
sub verbatim {
my ($parser, $paragraph, $line_num) = @_;
$parser->_save($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 ($data->{searching}) {
if ($data->{searching} =~ m{title|author}xms) {
$data->{ ucfirst $data->{searching} } = $paragraph;
$data->{searching} = undef;
}
}
# save the text
$parser->_save($paragraph);
}
sub interior_sequence {
my ($parser, $seq_command, $seq_argument, $pod_seq) = @_;
my $data = $parser->_private;
my %interiors = (
'I' => sub { return '_' . $_[1] . '_' }, # italic
'B' => sub { return '__' . $_[1] . '__' }, # bold
'C' => sub { return '`' . $_[1] . '`' }, # monospace
'F' => sub { return '`' . $_[1] . '`' }, # system path
'S' => sub { return '`' . $_[1] . '`' }, # code
'E' => sub {
my ($seq, $charname) = @_;
return '<' if $charname eq 'lt';
return '>' if $charname eq 'gt';
return '|' if $charname eq 'verbar';
return '/' if $charname eq 'sol';
return "&$charname;";
},
'L' => \&_resolv_link,
);
if (exists $interiors{$seq_command}) {
my $code = $interiors{$seq_command};
return $code->($seq_command, $seq_argument, $pod_seq);
} else {
return sprintf '%s<%s>', $seq_command, $seq_argument;
}
}
sub _resolv_link {
my ($cmd, $arg, $pod_seq) = @_;
if ($arg =~ m{^http|ftp}xms) {
# direct link to a URL
return sprintf '<%s>', $arg;
} elsif ($arg =~ m{^(\w+(::\w+)*)$}) {
return "[$1](http://search.cpan.org/perldoc?$1)";
} else {
return sprintf '%s<%s>', $cmd, $arg;
}
}
1;
__END__
#line 284
|
