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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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Use of octal value above 377 is deprecated

(D deprecated, W regexp) There is a constant in the regular expression whose value is interpreted by Perl as octal and larger than 377 (255 decimal, 0xFF hex). Perl may take this to mean different things depending on the rest of the regular expression. If you meant such an octal value, convert it to hexadecimal and use \xHH or \x{HH} instead. If you meant to have part of it mean a backreference, use \g for that. See 11.

ISBN 9781906966027Perl Language Reference ManualSee the print edition