B - The Perl Compiler Backend River stage five • 10973 direct dependents • 31463 total dependents

The "B" module supplies classes which allow a Perl program to delve into its own innards. It is the module used to implement the "backends" of the Perl compiler. Usage of the compiler does not require knowledge of this module: see the O module for th...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

re - Perl pragma to alter regular expression behaviour River stage five • 10973 direct dependents • 31463 total dependents

'taint' mode When "use re 'taint'" is in effect, and a tainted string is the target of a regexp, the regexp memories (or values returned by the m// operator in list context) are tainted. This feature is useful when regexp operations on tainted data a...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

mro - Method Resolution Order River stage five • 10973 direct dependents • 31463 total dependents

The "mro" namespace provides several utilities for dealing with method resolution order and method caching in general. These interfaces are only available in Perl 5.9.5 and higher. See MRO::Compat on CPAN for a mostly forwards compatible implementati...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

h2xs - convert .h C header files to Perl extensions River stage five • 10973 direct dependents • 31463 total dependents

*h2xs* builds a Perl extension from C header files. The extension will include functions which can be used to retrieve the value of any #define statement which was in the C header files. The *module_name* will be used for the name of the extension. I...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

sort - perl pragma to control sort() behaviour River stage five • 10973 direct dependents • 31463 total dependents

With the "sort" pragma you can control the behaviour of the builtin "sort()" function. A stable sort means that for records that compare equal, the original input ordering is preserved. Stability will matter only if elements that compare equal can be...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

todo - Perl TO-DO list River stage five • 10973 direct dependents • 31463 total dependents

This is a list of wishes for Perl. The most up to date version of this file is at <https://github.com/Perl/perl5/blob/blead/Porting/todo.pod>. The tasks we think are smaller or easier are listed first. Anyone is welcome to work on any of these, but i...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

utf8 - Perl pragma to enable/disable UTF-8 (or UTF-EBCDIC) in source code River stage five • 10973 direct dependents • 31463 total dependents

The "use utf8" pragma tells the Perl parser to allow UTF-8 in the program text in the current lexical scope. The "no utf8" pragma tells Perl to switch back to treating the source text as literal bytes in the current lexical scope. (On EBCDIC platform...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

Config - access Perl configuration information River stage five • 10973 direct dependents • 31463 total dependents

The Config module contains all the information that was available to the "Configure" program at Perl build time (over 900 values). Shell variables from the config.sh file (written by Configure) are stored in the readonly-variable %Config, indexed by ...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

POSIX - Perl interface to IEEE Std 1003.1 River stage five • 10973 direct dependents • 31463 total dependents

The POSIX module permits you to access all (or nearly all) the standard POSIX 1003.1 identifiers. Many of these identifiers have been given Perl-ish interfaces. This document gives a condensed list of the features available in the POSIX module. Consu...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

FIXME - short description of the security issue, with an identifier of the issue as the manpage name River stage five • 10973 direct dependents • 31463 total dependents

This document describes the FIXME <http://cve.mitre.org/cgi-bin/cvename.cgi?name=FIXME> security vulnerability for perl 5. Are there any known exploits "in the wild" for this vulnerability FIXME or delete Who is particularly vulnerable because of thi...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

Fcntl - load the C Fcntl.h defines River stage five • 10973 direct dependents • 31463 total dependents

This module is just a translation of the C fcntl.h file. Unlike the old mechanism of requiring a translated fcntl.ph file, this uses the h2xs program (see the Perl source distribution) and your native C compiler. This means that it has a far more lik...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

feature - Perl pragma to enable new features River stage five • 10973 direct dependents • 31463 total dependents

It is usually impossible to add new syntax to Perl without breaking some existing programs. This pragma provides a way to minimize that risk. New syntactic constructs, or new semantic meanings to older constructs, can be enabled by "use feature 'foo'...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

perlbug - how to submit bug reports on Perl River stage five • 10973 direct dependents • 31463 total dependents

This program is designed to help you generate bug reports (and thank-you notes) about perl5 and the modules which ship with it. In most cases, you can just run it interactively from a command line without any special arguments and follow the prompts....

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

perldelta - what is new for perl v5.32.0 River stage five • 10973 direct dependents • 31463 total dependents

This document describes differences between the 5.30.0 release and the 5.32.0 release. If you are upgrading from an earlier release such as 5.28.0, first read perl5300delta, which describes differences between 5.28.0 and 5.30.0....

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

bench.pl - Compare the performance of perl code snippets across multiple perls. River stage five • 10973 direct dependents • 31463 total dependents

By default, bench.pl will run code snippets found in t/perf/benchmarks (or similar) under cachegrind, in order to calculate how many instruction reads, data writes, branches, cache misses, etc. that one execution of the snippet uses. Usually it will ...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

perlop - Perl operators and precedence River stage five • 10973 direct dependents • 31463 total dependents

In Perl, the operator determines what operation is performed, independent of the type of the operands. For example "$x + $y" is always a numeric addition, and if $x or $y do not contain numbers, an attempt is made to convert them to numbers first. Th...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

perlre - Perl regular expressions River stage five • 10973 direct dependents • 31463 total dependents

This page describes the syntax of regular expressions in Perl. If you haven't used regular expressions before, a tutorial introduction is available in perlretut. If you know just a little about them, a quick-start introduction is available in perlreq...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

bisect.pl - use git bisect to pinpoint changes River stage five • 10973 direct dependents • 31463 total dependents

Together bisect.pl and bisect-runner.pl attempt to automate the use of "git bisect" as much as possible. With one command (and no other files) it's easy to find out * Which commit caused this example code to break? * Which commit caused this example ...

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

perlmodlib - constructing new Perl modules and finding existing ones River stage five • 10973 direct dependents • 31463 total dependents

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

perl5db.pl - the perl debugger River stage five • 10973 direct dependents • 31463 total dependents

"perl5db.pl" is the perl debugger. It is loaded automatically by Perl when you invoke a script with "perl -d". This documentation tries to outline the structure and services provided by "perl5db.pl", and to describe how you can use them....

XSAWYERX/perl-5.32.0 - 20 Jun 2020 20:38:54 UTC

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