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package Pod::Perldoc::BaseTo;
use strict;
use warnings;
use vars qw($VERSION);
$VERSION = '3.28';
use Carp qw(croak carp);
use Config qw(%Config);
use File::Spec::Functions qw(catfile);
sub is_pageable { '' }
sub write_with_binmode { 1 }
sub output_extension { 'txt' } # override in subclass!
# sub new { my $self = shift; ... }
# sub parse_from_file( my($class, $in, $out) = ...; ... }
#sub new { return bless {}, ref($_[0]) || $_[0] }
# this is also in Perldoc.pm, but why look there when you're a
# subclass of this?
sub TRUE () {1}
sub FALSE () {return}
BEGIN {
*is_vms = $^O eq 'VMS' ? \&TRUE : \&FALSE unless defined &is_vms;
*is_mswin32 = $^O eq 'MSWin32' ? \&TRUE : \&FALSE unless defined &is_mswin32;
*is_dos = $^O eq 'dos' ? \&TRUE : \&FALSE unless defined &is_dos;
*is_os2 = $^O eq 'os2' ? \&TRUE : \&FALSE unless defined &is_os2;
*is_cygwin = $^O eq 'cygwin' ? \&TRUE : \&FALSE unless defined &is_cygwin;
*is_linux = $^O eq 'linux' ? \&TRUE : \&FALSE unless defined &is_linux;
*is_hpux = $^O =~ m/hpux/ ? \&TRUE : \&FALSE unless defined &is_hpux;
*is_openbsd = $^O =~ m/openbsd/ ? \&TRUE : \&FALSE unless defined &is_openbsd;
*is_freebsd = $^O =~ m/freebsd/ ? \&TRUE : \&FALSE unless defined &is_freebsd;
*is_bitrig = $^O =~ m/bitrig/ ? \&TRUE : \&FALSE unless defined &is_bitrig;
}
sub _perldoc_elem {
my($self, $name) = splice @_,0,2;
if(@_) {
$self->{$name} = $_[0];
} else {
$self->{$name};
}
}
sub debugging {
my( $self, @messages ) = @_;
( defined(&Pod::Perldoc::DEBUG) and &Pod::Perldoc::DEBUG() )
}
sub debug {
my( $self, @messages ) = @_;
return unless $self->debugging;
print STDERR map { "DEBUG $_" } @messages;
}
sub warn {
my( $self, @messages ) = @_;
carp join "\n", @messages, '';
}
sub die {
my( $self, @messages ) = @_;
croak join "\n", @messages, '';
}
sub _get_path_components {
my( $self ) = @_;
my @paths = split /\Q$Config{path_sep}/, $ENV{PATH};
return @paths;
}
sub _find_executable_in_path {
my( $self, $program ) = @_;
my @found = ();
foreach my $dir ( $self->_get_path_components ) {
my $binary = catfile( $dir, $program );
$self->debug( "Looking for $binary\n" );
next unless -e $binary;
unless( -x $binary ) {
$self->warn( "Found $binary but it's not executable. Skipping.\n" );
next;
}
$self->debug( "Found $binary\n" );
push @found, $binary;
}
return @found;
}
1;
__END__
=head1 NAME
Pod::Perldoc::BaseTo - Base for Pod::Perldoc formatters
=head1 SYNOPSIS
package Pod::Perldoc::ToMyFormat;
use parent qw( Pod::Perldoc::BaseTo );
...
=head1 DESCRIPTION
This package is meant as a base of Pod::Perldoc formatters,
like L<Pod::Perldoc::ToText>, L<Pod::Perldoc::ToMan>, etc.
It provides default implementations for the methods
is_pageable
write_with_binmode
output_extension
_perldoc_elem
The concrete formatter must implement
new
parse_from_file
=head1 SEE ALSO
L<perldoc>
=head1 COPYRIGHT AND DISCLAIMERS
Copyright (c) 2002-2007 Sean M. Burke.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
This program 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.
=head1 AUTHOR
Current maintainer: Mark Allen C<< <mallen@cpan.org> >>
Past contributions from:
brian d foy C<< <bdfoy@cpan.org> >>
Adriano R. Ferreira C<< <ferreira@cpan.org> >>,
Sean M. Burke C<< <sburke@cpan.org> >>
=cut