The obvious part of your question refers to return all matches from a regex match.

That can easily done like this (I simplified your regex, as the missing parenthesis makes it unclear, what you really want): 

while(<STDIN>)
{
    # see previous answer
    #undef ($/);
    $string=$_;
    my @matches = ($string =~ m/(FINDINGS|COMPLICATIONS|:.*)/g);
    print STDOUT "@matches \n";
}

echo "FINDINGS COMPLICATIONS :something" | t.pl

[download]

However from your question it seems, what you really want is not just to get a list of matches, but some sort of parsing. eg. extract the text from the section "FINDINGS" etc.

To answer this, it would be necessary to know, where a section ends. If this is not, what you wanted, please clarify.

In reply to Re: multiple OR match fails by lune
in thread multiple OR match fails by zzgulu

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