Question

I want to set the LIST_SEPARATOR in perl, but all I get is this warning:

Name 'main::LIST_SEPARATOR' used only once: possible typo at ldapflip.pl line 7. 

Here is my program:

#!/usr/bin/perl -w  @vals; push @vals, 'a'; push @vals, 'b';  $LIST_SEPARATOR='|';  print '@vals\n'; 

I am sure I am missing something obvious, but I don’t see it.

Thanks

Answer 1

perlvar is your friend:

• $LIST_SEPARATOR
• $"

This is like $, except that it applies to array and slice values interpolated into a double-quoted string (or similar interpreted string). Default is a space. (Mnemonic: obvious, I think.)

$LIST_SEPARATOR is only avaliable if you use English; If you don’t want to use English; in all your programs, use $" instead. Same variable, just with a more terse name.