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lib/Acme/Brainfuck.pm  view on Meta::CPAN

	}
    }
}

FILTER_ONLY code => sub
{
    my $ret = $_;
    while ($ret =~ /\s ([\Q$ops\E]+) \s/gsx)
    {
	my $code = $1;
	my $len = length($1);
	my $at = pos($ret) - ($len + 1);

	$code =~ s/^/do { /g;
	$code =~ s/$/P; }; /g;
	$code =~ s/(\++)/"P += ".length($1).";" /eg;
	$code =~ s/(\-+)/"P -= ".length($1).";" /eg;
	$code =~ s/(<+)/"\$Acme::Brainfuck::p -= ".length($1).";" /eg; 
	$code =~ s/(>+)/"\$Acme::Brainfuck::p += ".length($1).";" /eg;
	$code =~ s/\./print chr P; /g;
	$code =~ s/,/P = ord getc;/g;
	$code =~ s/\[/while(P){/g;
	$code =~ s/\]/}; /g;
	if ($verbose)
	{
	    $code =~
		s/~/\$Acme::Brainfuck::p = 0;\@Acme::Brainfuck::m = (); /g;
	    $code =~
		s/\#/print STDERR sprintf\('\$p = %d \$m[\$p]= %d', \$Acme::Brainfuck::p, P\), "\\n"; /g;

t/1.t  view on Meta::CPAN

sub FILENO {
	my $class = shift;
	return $class->{FILENO};
}

sub WRITE {
	my $class = shift;
	my($buf,$len,$offset) = @_;
        $offset = 0 if (! defined $offset);
    	my $data = substr($buf, $offset, $len);
    	my $n = length($data);
    	$class->print($data);
        return $n;
}

sub PRINT {
	my $class = shift;
        ${$class->{data}} .= join('', @_);
    	$class->{position} = length(${$class->{data}});
    	1;
}

sub PRINTF {
	my $class = shift;
	my $fmt = shift;
	$class->PRINT(sprintf $fmt, @_);
}

sub READ {
	my $class = shift;

	my ($buf,$len,$offset) = @_;
    	$offset = 0 if (! defined $offset);

    	my $data = ${ $class->{data} };

    	if ($class->{end} >= length($data)) {
		return 0;
	}
	$buf = substr($data,$offset,$len);
        $_[0] = $buf;
        $class->{end} += length($buf);
        return length($buf);
}

sub READLINE {
	my $class = shift;
	if ($class->{end} >= length(${ $class->{data} })) {
		return undef;
	}
	my $recsep = $/;
	my $rod = substr(${ $class->{data} }, $class->{end}, -1);
	$rod =~ m/^(.*)$recsep{0,1}/; # use 0,1 for line sep to include possible no \n on last line
	my $line = $1 . $recsep;
	$class->{end} += length($line);
	return $line;
}

sub CLOSE {
	my $class = shift;
	if (-e $class->{tmpfile}) {
		$class->{fh}->close();
		unlink $class->{tmpfile} or warn $!;
	}
	$class = undef;