On Wednesday 27 Jan 2010 18:21:01 Jim Gibson wrote:
> At 6:44 PM +0530 1/27/10, V U Maheswara rao k wrote:
> >Thanks Jhon,
> >
> >my search string may be more than 100 words like ("warnings", "errors",
> >"Caution","Debug","notice","info"..etc). so that I want to get it from
> >array and search it in each line
> >I want to search a list in a line of file.
>
> Alternation is still the way to go. If you have yours words to search
> for in an array (e.g., @words), form your regular expression this way:
>
> my $re = join('|',@words);
>
Better yet, use perldoc -f quotemeta:
----
my $re_str = join('|', map { quoteameta($_) } @words);
my $re = qr{$re_str};
----
Regards,
Shlomi Fish
> Then use it this way:
>
> while(<$fh>) {
> if( /$re/o ) {
> print;
> }
> }
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