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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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lc          Lowercase a string
lcfirst     Lowercase first char of a string
uc          Uppercase a string
ucfirst     Titlecase first char of a string
pos         Return or set current match position
quotemeta   Quote metacharacters
reset       Reset ?pattern? status
study       Analyze string for optimizing matching
split       Use a regex to split a string into parts

The first four of these are like the escape sequences \L, \l, \U, and \u. For Titlecase, see 14.10.1.

ISBN 9781906966027Perl Language Reference ManualSee the print edition