comment on

I'm still not sure what you're trying to achieve here, cause your grep returns the PATTERNs which matched.

Are those patterns simple words? If yes you could consider constructing an or-regex:

  DB<100> @patterns=qw#one two three#
 
  DB<101> $str="one two"
 
  DB<102> $re=join "|",@patterns
 
  DB<103> print $str =~ m/($re)/g
onetwo
[download]

UPDATE:

just noticed there are still subtle differences:

  DB<106> $str="two one two"
 
  DB<107> print $str =~ m/($re)/g
twoonetwo
  DB<108> print grep {$str=~/$_/} @patterns
onetwo
[download]

Cheers Rolf

In reply to Re^3: grep trouble by LanX
in thread grep trouble by LogMiner

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