savefile( $filename, $data )

My quick & dirty save file subroutine.

sub savefile {
  my ( $filename, $data ) = @_;
  open my $FH, ">$filename" or die "Unable to open $filename: $!";
  die "Can't handle HASHEs" if ref $data eq 'HASH';

  $_ = ref $data;

CASE: {
  /ARRAY/ && do {
    local $\ ||= "\n";
    print $FH "@$data";
    last CASE;
  };

  /SCALAR/ && do {
    print $FH $$data;
    last CASE;
  };

  print $FH $data;
};
}
[download]

Comment on savefile( $filename, $data ) Download Code

Replies are listed 'Best First'.
Re: savefile( $filename, $data ) by Zaxo (Archbishop) on Jul 30, 2005 at 05:50 UTC
How does $data get into the function with only a single shift? `my ( $filename, $data ) = @_;` would do better. After Compline, Zaxo	[reply] [d/l]
Re^2: savefile( $filename, $data ) by harleypig (Monk) on Jul 30, 2005 at 19:27 UTC
Oops. Thanks. That's what I get for typing something from memory and not testing it. Harley J Pig	[reply]
Re: savefile( $filename, $data ) by xdg (Monsignor) on Jul 29, 2005 at 11:18 UTC
You might consider checking out File::Slurp. -xdg Code written by xdg and posted on PerlMonks is public domain. It is provided as is with no warranties, express or implied, of any kind. Posted code may not have been tested. Use of posted code is at your own risk.	[reply]
Re^2: savefile( $filename, $data ) by harleypig (Monk) on Jul 29, 2005 at 18:13 UTC
I use that when I can, but I have a lot of clients who, for whatever reason, can't or won't use CPAN modules. Harley J Pig	[reply]
Re: savefile( $filename, $data ) by jdhedden (Deacon) on Jul 29, 2005 at 19:45 UTC
You could print hash data as lines of 'key=value': `/HASH/ && do { print($FH "$_=$$data{$_}\n") foreach (keys(%$data)); last CASE; };` [download] Remember: There's always one more bug.	[reply] [d/l]
Re^2: savefile( $filename, $data ) by harleypig (Monk) on Jul 30, 2005 at 05:04 UTC
Yeah, but how I handle a hash differs on a case by case basis while arrays and scalars are almost always handled the same. It's easy to modify that instance after a cut-n-paste. Harley J Pig	[reply]