If you particularly want a single regular expression, you can get it by using lookahead: 

  my $re = join ' ', map "(?= .*? \Q$_\E)", @ARGV;
  if ($entry =~ /^ $re/sx) { ... }

[download]

That would turn your example arguments into something like: 

  m{ ^ (?= .*? bill ) (?= .*? clinton ) }xs

[download]
so it matches if: 
from the start
  fail unless we can find some characters followed by "bill"
_and_ (still from the start)
  fail unless we can find some characters followed by "clinton"
succeed

[download]

I'm not sure how efficient that is, but it should be ok; if speed is important it would be worth benchmarking against some alternatives. Don't forget that when looking for an exact string match, index() can be faster than m/\Q$str\E/, and that if you're going to match one string against many regexps study($string) can help.

Hugo

In reply to Re: regexp match arg1 AND arg2 by hv
in thread regexp match arg1 AND arg2 by Jaap

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