Oh Wise Monks! Can Perl apply a matching regex to an input stream instead of just a scalar? That would be trully a miracle!

For example one can do something like 

while ( my ($m) = ($string =~ /<regex>/g) )
{
  <do something with $m>
}

[download]

And a sequence of matches can be processed.

But can a similar pattern be applied to an input stream? Specially in the case where the match can overlap over several lines. That is the match operator would read the stream till something matches.

The advantage: no need to read the file in large chunks or completely.
The use: parsing large ammounts of multiline stuff.

Thank you for any wisdom!

Sergio

In reply to Regexing an input stream... by sergio

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