Fellow-seekers of Perlish righteousness, lately I have been dabbling with using and and or in places for which I cannot prove precedence among the fathers.

Tell me, am I sinning to use and and or to combine statements as follows? 

for my $next (@ARGV){
  opendir(PWD,"$next") and
      my @files = readdir PWD or
      die "Open \"$_\" failed: $!";
  closedir PWD or die $!;
  print "$_\n" for @files;
}

[download]

Especially, this seems useful in testing regular expressions as in this recent example, where ... 

s/test/whatever/ and print or print;

[download]

...will print the substitution if the match succeeds, or print the unmodified string if it fails.

Are there problems with this style? Is it testing what I think it is? Is it always going to be reliable, or will it break under some conditions? Is it more common to do this than I had thought?
mkmcconn

In reply to and this or that by mkmcconn

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