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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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The current value of the regex debugging flags. Set to 0 for no debug output even when the re 'debug' module is loaded. See "Perl pragma to alter regular expression behaviour" (re) in the Perl Library Reference Manual (Volume 1) for details.

ISBN 9781906966027Perl Language Reference ManualSee the print edition