Initial Commit

database/perl/lib/ExtUtils/ParseXS/CountLines.pm

@@ -0,0 +1,54 @@
+package ExtUtils::ParseXS::CountLines;
+use strict;
+
+our $VERSION = '3.40';
+
+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;