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package MDOM::Assignment;
use strict;
use warnings;
#use Smart::Comments;
use base 'MDOM::Node';
use MDOM::Util qw( trim_tokens );
sub lhs ($) {
my ($self) = @_;
$self->_parse if !defined $self->{op};
my $tokens = $self->{lhs};
wantarray ? @$tokens : $tokens;
}
sub rhs ($) {
my ($self) = @_;
$self->_parse if !defined $self->{op};
my $tokens = $self->{rhs};
wantarray ? @$tokens : $tokens;
}
sub op {
my ($self) = @_;
$self->_parse if !defined $self->{op};
$self->{op};
}
sub _parse ($) {
my ($self) = @_;
my @elems = $self->elements;
### Assignment elems: @elems
my (@lhs, @rhs, $op);
for my $elem (@elems) {
if (!$op) {
if ($elem->class eq 'MDOM::Token::Separator') {
$op = $elem;
} else {
push @lhs, $elem;
}
} elsif ($elem->class eq 'MDOM::Token::Comment') {
last;
} else {
push @rhs, $elem;
}
}
trim_tokens(\@lhs);
pop @rhs if $rhs[-1] eq "\n";
shift @rhs if $rhs[0]->class eq 'MDOM::Token::Whitespace';
$self->{lhs} = \@lhs;
$self->{rhs} = \@rhs;
$self->{op} = $op;
}
1;
__END__
=encoding utf-8
=head1 NAME
MDOM::Assignment - DOM Assignment Node for Makefiles
=head1 DESCRIPTION
An assignment node.
=head2 Accessors
=over 4
=item lhs
left hand side of assignment
=item rhs
right hand side of assignment
=item op
assignment operator
=back
=head1 AUTHOR
Yichun "agentzh" Zhang (章亦春) E<lt>agentzh@gmail.comE<gt>
=head1 COPYRIGHT
Copyright 2006-2014 by Yichun "agentzh" Zhang (章亦春).
This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
=head1 SEE ALSO
L<MDOM::Document>, L<MDOM::Document::Gmake>, L<PPI>, L<Makefile::Parser::GmakeDB>, L<makesimple>.
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