|Perl Language Reference Manual|
by Larry Wall and others
Paperback (6"x9"), 724 pages
RRP £29.95 ($39.95)
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Nested quantifiers in regex; marked by <-- HERE in m/%s/
(F) You can't quantify a quantifier without intervening parentheses. So things like ** or +* or ?* are illegal. The <-- HERE shows in the regular expression about where the problem was discovered.
Note that the minimal matching quantifiers,
?? appear to be nested quantifiers, but aren't. See 11.
|ISBN 9781906966027||Perl Language Reference Manual||See the print edition|