|Perl Language Reference Manual|
by Larry Wall and others
Paperback (6"x9"), 724 pages
RRP £29.95 ($39.95)
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If capturing parenthesis are used in a regular expression, we can refer to the part of the source string that was matched, and match exactly the same thing. There are three ways of referring to such backreference: absolutely, relatively, and by name.
|ISBN 9781906966027||Perl Language Reference Manual||See the print edition|