File Coverage

blib/lib/HTML/FormatText/Zen.pm

Criterion	Covered	Total	%
statement	27	32	84.3
branch	1	6	16.6
condition			n/a
subroutine	9	10	90.0
pod	2	2	100.0
total	39	50	78.0

# Copyright 2008, 2009, 2010, 2013, 2015 Kevin Ryde

# HTML-FormatExternal is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3, or (at your option) any
# later version.
#
# HTML-FormatExternal is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with HTML-FormatExternal.  If not, see .

package HTML::FormatText::Zen;
use 5.006;
use strict;
use warnings;
use HTML::FormatExternal;
our @ISA = ('HTML::FormatExternal');

our $VERSION = 24;

use constant DEFAULT_LEFTMARGIN => 0;
use constant DEFAULT_RIGHTMARGIN => 80;

# no input charset options
use constant _WIDE_INPUT_CHARSET => 'entitize';

sub program_full_version {
  my ($self_or_class) = @_;
  return $self_or_class->_run_version (['zen', '--version']);
}
sub program_version {
  my ($self_or_class) = @_;
  my $version = $self_or_class->program_full_version;
  if (! defined $version) { return undef; }

  # eg. "zen version 0.2.3"
  $version =~ /^zen version (.*)/i
    or $version =~ /^(.*)/;  # whole first line if format not recognised
  return $1 . substr($version,0,0);  # retain taintedness
}

sub _make_run {
  my ($class, $input_filename, $options) = @_;

  # Is it worth enforcing/checking this ?
  # Could use Encode.pm to convert the output without too much trouble.
  #
  #   if (my $input_charset = $options->{'input_charset'}) {
  #     $input_charset =~ /^latin-?1$|^iso-?8859-1$/i
  #       or croak "Zen only accepts latin-1 input";
  #   }
  #   if (my $output_charset = $options->{'output_charset'}) {
  #     $output_charset =~ /^latin-?1$|^iso-?8859-1$/i
  #       or croak "Zen only produces latin-1 output";
  #   }

  # 'zen_options' not documented ...
  return ([ 'zen', '-i', 'dump',
            @{$options->{'zen_options'} || []},
            '--',  # end of options
            $input_filename,
          ]);
}

1;
__END__