"Is that only if you use the qr function, or can you change the delimiter in any context?"
Not "any", but certainly "many". Take a look at "perlop: Quote and Quote-like Operators".
-- Ken
In reply to Re^3: multiple matches per line *AND* multiple capture groups per match (delimiters)
by kcott
in thread multiple matches per line *AND* multiple capture groups per match
by Special_K
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