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# some useful functions to experiment with
# the new PDL source filter within the perldl shell

# report switches translation reporting on/off
# trans and notrans switch source filtering on/off

# include the perl code below in your standard
# perldl startup file ($ENV{HOME}/.perldlrc)
# to have it always available when working
# in the perldl shell

$PERLDL::report = 0;
sub report {
  my $ret = $PERLDL::report;
  $PERLDL::report = $_[0] if $#_ > -1;
  return $ret;
}

use PDL::NiceSlice;
my $preproc = sub { my ($txt) = @_;
	my $new = PDL::NiceSlice::perldlpp $txt;
	print STDERR "processed $new\n" if report && $new ne $txt;
	return $new;
};

sub trans { $PERLDL::PREPROCESS  = $preproc }
sub notrans { $PERLDL::PREPROCESS  = undef }
trans; # switch on by default


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