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Perl Language Reference Manual
by Larry Wall and others
Paperback (6"x9"), 724 pages
ISBN 9781906966027
RRP £29.95 ($39.95)

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panic: unimplemented op %s (#%d) called

(P) The compiler is screwed up and attempted to use an op that isn't permitted at run time.

ISBN 9781906966027Perl Language Reference ManualSee the print edition