|Perl Language Reference Manual|
by Larry Wall and others
Paperback (6"x9"), 724 pages
RRP £29.95 ($39.95)
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The string preceding whatever was matched by the last successful
pattern match (not counting any matches hidden within a BLOCK or eval
enclosed by the current BLOCK). (Mnemonic:
` often precedes a quoted
string.) This variable is read-only.
The use of this variable anywhere in a program imposes a considerable performance penalty on all regular expression matches. See 10.4.
|ISBN 9781906966027||Perl Language Reference Manual||See the print edition|