Hi Dermot.
Dermot Paikkos wrote:
> Hi Gurus,
>
> I want to read a file and find/build an array of lines that match.
That match what? Each other?
> Is it possible to do something like;
>
> if ( $pattern =~ /$line/ ) {
> dostuff;
> }
Yes, you can do exactly that. The test will succeed if $pattern contains the
string $line, except where $line contains regular expression 'metacharacters'.
To avoid this problem you can do this
if ( $pattern =~ /\Q$line/ ) {
which protects (escapes) all metacharacters and makes them behave as normal
characters.
However, whether this is what you need to do or not I can't tell without
knowing more about your problem.
> Does perl interpolate the to variables? Or do I need to escape one of
> the variables?
Yes, Perl will interpolate the variables for you, as if they were in double quotes.
Escaping anything only serves to _stop_ it from being interpreted, and force
it to be used literally.
HTH,
Rob
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