NAME perldelta – what is new for perl v5.30.0 DESCRIPTION This document describes differences between the 5.28.0 release and the 5.30.0 release. If you are upgrading from an earlier release such as 5.26.0, first read perl5280delta, which describes differences between 5.26.0 and 5.28.0. Notice sv_utf8_(downgrade|decode) are no longer marked as experimental. [perl #133788] <https://rt.perl.org/Ticket/Display.html?id=133788>. Core…
NAME perldebug – Perl debugging DESCRIPTION First of all, have you tried using "use strict;" and "use warnings;"? If you’re new to the Perl debugger, you may prefer to read perldebtut, which is a tutorial introduction to the debugger. If you’re looking for the nitty gritty details of how the debugger is implemented, you may…
NAME perldebtut – Perl debugging tutorial DESCRIPTION A (very) lightweight introduction in the use of the perl debugger, and a pointer to existing, deeper sources of information on the subject of debugging perl programs. There’s an extraordinary number of people out there who don’t appear to know anything about using the perl debugger, though they…
NAME perldebguts – Guts of Perl debugging DESCRIPTION This is not perldebug, which tells you how to use the debugger. This manpage describes low-level details concerning the debugger’s internals, which range from difficult to impossible to understand for anyone who isn’t incredibly intimate with Perl’s guts. Caveat lector. Debugger Internals Perl has special debugging hooks…
NAME perldbmfilter – Perl DBM Filters SYNOPSIS $db = tie % hash, ‘DBM’, … $old_filter = $db->filter_store_key(sub{…}); $old_filter = $db->filter_store_value(sub{…}); $old_filter = $db->filter_fetch_key(sub{…}); $old_filter = $db->filter_fetch_value(sub{…}); DESCRIPTION The four "filter_*" methods shown above are available in all the DBM modules that ship with Perl, namely DB_File, GDBM_File, NDBM_File, ODBM_File and SDBM_File. Each of the methods…
NAME perldata – Perl data types DESCRIPTION Variable names Perl has three built-in data types: scalars, arrays of scalars, and associative arrays of scalars, known as “hashes”. A scalar is a single string (of any size, limited only by the available memory), number, or a reference to something (which will be discussed in perlref). Normal…
NAME perlcygwin – Perl for Cygwin SYNOPSIS This document will help you configure, make, test and install Perl on Cygwin. This document also describes features of Cygwin that will affect how Perl behaves at runtime. NOTE: There are pre-built Perl packages available for Cygwin and a version of Perl is provided in the normal Cygwin…
NAME "perlcritic" – Command-line interface to critique Perl source. SYNOPSIS perlcritic[-12345 | –brutal | –cruel | –harsh | –stern | –gentle] [–severity number | name][{-p | –profile} file | –noprofile] [–top[number]][–theme expression][–include pattern] [–exclude pattern][{-s | –single – policy} pattern] [–only | –noonly][–profile – strictness{warn | fatal | quiet}] [–force | –noforce][–statistics][–statistics – only] [–count…
NAME perlcompile – Introduction to the Perl Compiler-Translator DESCRIPTION Perl has always had a compiler: your source is compiled into an internal form (a parse tree) which is then optimized before being run. Since version 5.005, Perl has shipped with a module capable of inspecting the optimized parse tree ("B"), and this has been used…
NAME perlcommunity – a brief overview of the Perl community DESCRIPTION This document aims to provide an overview of the vast perl community, which is far too large and diverse to provide a detailed listing. If any specific niche has been forgotten, it is not meant as an insult but an omission for the sake…
NAME perlclib – Internal replacements for standard C library functions DESCRIPTION One thing Perl porters should note is that perl doesn’t tend to use that much of the C standard library internally; you’ll see very little use of, for example, the ctype.h functions in there. This is because Perl tends to reimplement or abstract standard…
NAME perlcheat – Perl 5 Cheat Sheet DESCRIPTION This ‘cheat sheet’ is a handy reference, meant for beginning Perl programmers. Not everything is mentioned, but 195 features may already be overwhelming. The sheet CONTEXTS SIGILS ref ARRAYS HASHES void $scalar SCALAR @array % hash scalar @array ARRAY @array[0, 2] @hash{‘a’, ‘b’} list % hash HASH…
NAME perlce – Perl for WinCE Building Perl for WinCE WARNING Much of this document has become very out of date and needs updating, rewriting or deleting. The build process was overhauled during the 5.19 development track and the current instructions as of that time are given in “CURRENT BUILD INSTRUCTIONS”; the previous build instructions,…
NAME perlcall – Perl calling conventions from C DESCRIPTION The purpose of this document is to show you how to call Perl subroutines directly from C, i.e., how to write callbacks. Apart from discussing the C interface provided by Perl for writing callbacks the document uses a series of examples to show how the interface…
NAME perlbug – how to submit bug reports on Perl SYNOPSIS perlbug perlbug [ -v ] [ -a address ] [ -s subject ] [ -b body | -f inputfile ] [ -F outputfile ] [ -r returnaddress ] [ -e editor ] [ -c adminaddress | -C ] [ -S ] [ -t ] [ -d ] [ -h ] [ -T ] perlbug [ -v ] [ -r returnaddress ] [ -ok | -okay | -nok | -nokay ] perlthanks DESCRIPTION This program is designed to help you generate bug reports (and thank-you notes) about perl5 and the modules which ship with it. In…
NAME perlbs2000 – building and installing Perl for BS2000. This document needs to be updated, but we don’t know what it should say. Please email comments to perlbug [at] perl.org <mailto:perlbug [at] perl.org>. SYNOPSIS This document will help you Configure, build, test and install Perl on BS2000 in the POSIX subsystem. DESCRIPTION This is a…
NAME perlbot – Links to information on object-oriented programming in Perl DESCRIPTION For information on OO programming with Perl, please see perlootut and perlobj. (The above documents supersede the collection of tricks that was formerly here in perlbot.) Index
NAME perlbook – Books about and related to Perl DESCRIPTION There are many books on Perl and Perl-related. A few of these are good, some are OK, but many aren’t worth your money. There is a list of these books, some with extensive reviews, at <http://books.perl.org/> . We list some of the books here, and…
NAME perlbeos – Perl version 5.8+ on BeOS DESCRIPTION This file contains instructions how to build Perl under BeOS and lists known problems. BUILD AND INSTALL Requirements I have built and tested Perl 5.8.6 and 5.9.1 under BeOS R5 x86 net server. I can’t say anything with regard to PPC. Since Perl 5.8.0 had been…
NAME Perlbal – Reverse-proxy load balancer and webserver DESCRIPTION For now, see example configuration files in conf/ from the CPAN tarball http://search.cpan.org/dist/Perlbal/ AUTHORS Brad Fitzpatrick, <brad[at] danga.com> Mark Smith, <marksmith[at] danga.com> SEE ALSO http://www.danga.com/perlbal/ COPYRIGHT AND LICENSE Copyright 2004, Danga Interactive, Inc. Copyright 2005-2007, Six Apart, Ltd. You can use and redistribute Perlbal under the…