package ExtUtils::ParseXS::CountLines;
use strict;

our $VERSION = '3.18';

our $SECTION_END_MARKER;

sub TIEHANDLE {
my ($class, $cfile, $fh) = @_;
$cfile =~ s/\\/\\\\/g;
$cfile =~ s/"/\\"/g;
$SECTION_END_MARKER = qq{#line --- "$cfile"};

return bless {
buffer => '',
fh => $fh,
line_no => 1,
}, $class;
}

sub PRINT {
my $self = shift;
for (@_) {
$self->{buffer} .= $_;
while ($self->{buffer} =~ s/^([^\n]*\n)//) {
my $line = $1;
++$self->{line_no};
$line =~ s|^\#line\s+---(?=\s)|#line $self->{line_no}|;
print {$self->{fh}} $line;
}
}
}

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

sub DESTROY {
# Not necessary if we're careful to end with a "\n"
my $self = shift;
print {$self->{fh}} $self->{buffer};
}

sub UNTIE {
# This sub does nothing, but is necessary for references to be released.
}

sub end_marker {
return $SECTION_END_MARKER;
}

1;