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#!/usr/bin/perl
use 5.024;
use strict;
use warnings;
use utf8;
use lib '/usr/local/lib/perl5';  # To be used together with the cpanm command given in the README.md file.
use Encode;
use Encode::Locale 'decode_argv';
use English;
use Getopt::Long qw(VersionMessage :config no_ignore_case bundling);
use Markdown::Perl;
use Markdown::Perl::Options 'validate_options';
use Pod::Usage;
our $VERSION = $Markdown::Perl::VERSION; ## no critic (ProhibitComplexVersion,RequireConstantVersion)
decode_argv(Encode::FB_WARN);
my $pmark = Markdown::Perl->new();
GetOptions(
  'help|h' => sub { pod2usage(-verbose => 1, -exitval => 0); },
  'helpfull|help-full|man' => sub { pod2usage(-verbose => 2, -exitval => 0); },
  'list-options|help-options|helpoptions' =>
      sub { pod2usage(-verbose => 2, -exitval => 0, -input => $INC{'Markdown/Perl/Options.pm'}); },
  'version|v' => sub { VersionMessage(-exitval => 0) },
  'mode|m=s' => sub { $pmark->set_mode($_[1]) },
  'option|o=s%' => sub { validate_options($_[1], $_[2]); $pmark->set_options($_[1], $_[2]) },
) or pod2usage(-verbose => 0, -exitval => 2);
# TODO: add options to specify the input/output encoding.
if (-t STDIN) {
  binmode STDIN, ':encoding(console_in)';  # console_in is set by the Encode::Locale module.
} else {
  binmode STDIN, ':encoding(UTF-8)';
}
my $input;
{
  local $INPUT_RECORD_SEPARATOR = undef;
  $input = <>;
}
if (-t STDOUT) {
  binmode STDOUT, ':encoding(console_out)';  # console_out is set by the Encode::Locale module.
} else {
  binmode STDOUT, ':encoding(UTF-8)';
}
if (-t STDERR) {
  binmode STDERR, ':encoding(console_out)';  # console_out is set by the Encode::Locale module.
} else {
  binmode STDOUT, ':encoding(UTF-8)';
}
print $pmark->convert($input);
__DATA__
HideShow 149 lines of Pod
=pod
=encoding utf8
=head1 NAME
pmarkdown – Very configurable Markdown processor written in pure Perl,
supporting the CommonMark spec and many extensions.
=head1 SYNOPSIS
  pmarkdown [-o key=value] ... < in_file.md > out_file.html_fragment
=head1 DESCRIPTION
Currently C<pmarkdown> can only read a single input from its standard input and
will write its output on the standard output. Both are assumed to be encoded in
UTF-8.
If needed, See the L<GitHub pmarkdown page|https://github.com/mkende/pmarkdown>
for installation instructions.
=head1 OPTIONS
=over 8
=item B<--help>, B<-h>
Show a short help message about the program.
=item B<--helpfull>
Show the complete man page of the program.
=item B<--list-options>
Show the documentation of all the existing options of the Markdown processor.
This is the same content that can be found on the L<Markdown::Perl::Options>
page.
These options can be passed to the program with the C<--options> flag.
=item B<--version>, B<-v>
Show the version of this program.
=item B<--mode> I<mode>, B<-m>
Specify a I<mode> for the Markdown processor. A mode is a set of configuration
options working together, typically to replicate the semantics of another
existing Markdown processor. See the L</MODES> section in this page for a list
of available modes.
When a mode is applied, is set specific values for some options but any value
for these options set through the C<--option> flag will take precedence.
=item B<--option> I<option=value>, B<-o>
Specify the value for one particular option. The C<--option> flag can be passed
multiple times. If an option is specified multiple times, the last value takes
precedence.
The options are described in the L<Markdown::Perl::Options> page. You can see
it with the C<pmarkdown --list-options> command.
When specifying an option value, boolean options should be passed as either
C<0>, C<1>, C<false>, or C<true>.
Note that all options are applied I<on top> of the selected mode. Even if the
options are passed before the B<--mode> flag, the mode will not override options
set through B<--option>.
=back
=head1 MODES
=over 8
=item B<default>
The default mode if no other mode is specified. This mode uses the default value
for all the options (as per their documentation). The default syntax is
documented in the GitHub repository of the project:
L<https://github.com/mkende/pmarkdown/blob/main/Syntax.md>
Note that, in practice, setting the mode to B<default> is equivalent to not
setting a mode at all, except that subsequent calls to set a mode will raise a
warning about the mode being overwritten.
=item B<cmark>
This mode implements the full
L<CommonMark spec|https://spec.commonmark.org/0.31.2/>.
=item B<github>
This mode implements the
L<GitHub Flavored Markdown|https://github.github.com/gfm/> variant of the
CommonMark spec.
=item B<markdown>
This mode implements the
L<original Markdown syntax|https://daringfireball.net/projects/markdown/syntax>.
Note that this mode is not 100% similar to the original F<Markdown.pl> script
as that script has some buggy behavior that we are not reproducing.
=back
=head1 AUTHOR
This program has been written by L<Mathias Kende|mailto:mathias@cpan.org>.
=head1 LICENCE
Copyright 2024 Mathias Kende
This program is distributed under the MIT (X11) License:
L<http://www.opensource.org/licenses/mit-license.php>
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
=head1 SEE ALSO
L<cmark(1)>,
L<CommonMark Spec|https://spec.commonmark.org/0.30/#links>
=cut