You can use regular expression capturing, and backreferences.
if(
$string =~ m/
\b([[:alpha:]]+)\b # Match and capture word
.*? # Skip what you don't need
\b\1\b # Match the captured word
/x
) {
print $1, "\n";
}
Limitation: Words can contain only alpha characters. You could modify the expression: [[:alpha:]] so as to include what you might consider to be legal word characters, such as ' (apostrophe) and - (hyphen). I used the /x modifier to facilitate grouping the regular expression's sub-expressions into meaningful clusters so that it's easier to read.
Hope this helps!
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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