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# Copyright 2009, 2010, 2011 Kevin Ryde
# This file is part of Pod-MinimumVersion.
# Pod-MinimumVersion 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.
#
# Pod-MinimumVersion 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 Pod-MinimumVersion. If not, see <http://www.gnu.org/licenses/>.
package Pod::MinimumVersion::Parser;
use 5.004;
use strict;
use vars '$VERSION', '@ISA';
use Pod::Parser;
@ISA = ('Pod::Parser');
$VERSION = 50;
# uncomment this to run the ### lines
#use Smart::Comments;
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);
$self->errorsub ('error_handler'); # method name
return $self;
}
sub error_handler {
my ($self, $errmsg) = @_;
### PMV error_handler()
return 1; # error handled
}
# sub begin_input {
# print "begin_input\n";
# }
# sub end_input {
# print "end_input\n";
# }
sub parse_from_string {
my ($self, $str) = @_;
### PMV parse_from_string()
require IO::String;
my $fh = IO::String->new ($str);
$self->{_INFILE} = "(string)";
return $self->parse_from_filehandle ($fh);
}
my %command_does_not_interpolate = (for => 1, # free form text
begin => 1, # formatname not text
end => 1,
pod => 1, # text ignored
cut => 1, # text ignored
encoding => 1, # encoding name not text
);
sub command {
my ($self, $command, $text, $linenum, $paraobj) = @_;
### PMV command()
### $command
### $text
### $linenum
# If =foo command at EOF with no more chars, including no trailing
# newline, then $text is undef (circa Pod::Parser 1.37 at least).
#
if (defined $text) {
if ($command eq 'for'
&& $text =~ /^Pod::MinimumVersion\s+use\s+(v?[0-9._]+)/) {
$self->{'pmv'}->{'for_version'} = version->new($1);
}
foreach my $func (@{$self->{'checks'}->{'command'}}) {
$func->($self->{'pmv'}, $command, $text, $paraobj);
}
unless ($command_does_not_interpolate{$command}) {
$self->interpolate ($text, $linenum);
}
}
return '';
}
sub verbatim {
### PMV verbatim()
return '';
}
sub textblock {
my ($self, $text, $linenum, $paraobj) = @_;
### PMV textblock()
### $text
return $self->interpolate ($text, $linenum);
}
sub interior_sequence {
my ($self, $command, $arg, $seq_obj) = @_;
### interior
### $command
### $arg
### $seq_obj
### raw_text: $seq_obj->raw_text
### left: $seq_obj->left_delimiter
### nested: do { my $outer = $seq_obj->nested; $outer && $outer->cmd_name }
# J<> from Pod::MultiLang -- doubled C<<>> or L<|display> are allowed
# ENHANCE-ME: might prefer to make parse_tree() not descend into J<> at
# all, but it doesn't seem setup for that
my $outer;
if ($command eq 'J'
|| (($outer = $seq_obj->nested) && $outer->cmd_name eq 'J')) {
return '';
}
foreach my $func (@{$self->{'checks'}->{'interior_sequence'}}) {
$func->($self->{'pmv'}, $command, $arg, $seq_obj);
}
return '';
}
1;
__END__
=for stopwords Ryde Pod-MinimumVersion
=head1 NAME
Pod::MinimumVersion::Parser - parser used by Pod::MinimumVersion
=head1 DESCRIPTION
This is an internal part of C<Pod::MinimumVersion>, not meant for other use.
=head1 SEE ALSO
L<Pod::MinimumVersion>
=head1 HOME PAGE
http://user42.tuxfamily.org/pod-minimumversion/index.html
=head1 COPYRIGHT
Copyright 2009, 2010, 2011 Kevin Ryde
Pod-MinimumVersion 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.
Pod-MinimumVersion 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
Pod-MinimumVersion. If not, see <http://www.gnu.org/licenses/>.
=cut
|
