re - Perl pragma to alter regular expression behaviour River stage five • 10313 direct dependents • 30438 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-5.30.0 - 22 May 2019 09:35:50 GMT

re - Perl pragma to alter regular expression behaviour River stage five • 10313 direct dependents • 30438 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...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

utf8 - Perl pragma to enable/disable UTF-8 (or UTF-EBCDIC) in source code River stage five • 10313 direct dependents • 30438 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-5.30.0 - 22 May 2019 09:35:50 GMT

utf8 - Perl pragma to enable/disable UTF-8 (or UTF-EBCDIC) in source code River stage five • 10313 direct dependents • 30438 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...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

POSIX - Perl interface to IEEE Std 1003.1 River stage five • 10313 direct dependents • 30438 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-5.30.0 - 22 May 2019 09:35:50 GMT

POSIX - Perl interface to IEEE Std 1003.1 River stage five • 10313 direct dependents • 30438 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...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

perlop - Perl operators and precedence River stage five • 10313 direct dependents • 30438 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...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

perlop - Perl operators and precedence River stage five • 10313 direct dependents • 30438 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-5.30.0 - 22 May 2019 09:35:50 GMT

perlref - Perl references and nested data structures River stage five • 10313 direct dependents • 30438 total dependents

Before release 5 of Perl it was difficult to represent complex data structures, because all references had to be symbolic--and even then it was difficult to refer to a variable instead of a symbol table entry. Perl now not only makes it easier to use...

XSAWYERX/perl-5.30.0 - 22 May 2019 09:35:50 GMT

perlref - Perl references and nested data structures River stage five • 10313 direct dependents • 30438 total dependents

Before release 5 of Perl it was difficult to represent complex data structures, because all references had to be symbolic--and even then it was difficult to refer to a variable instead of a symbol table entry. Perl now not only makes it easier to use...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

perlipc - Perl interprocess communication (signals, fifos, pipes, safe subprocesses, sockets, and semaphores) River stage five • 10313 direct dependents • 30438 total dependents

The basic IPC facilities of Perl are built out of the good old Unix signals, named pipes, pipe opens, the Berkeley socket routines, and SysV IPC calls. Each is used in slightly different situations....

XSAWYERX/perl-5.30.0 - 22 May 2019 09:35:50 GMT

perlipc - Perl interprocess communication (signals, fifos, pipes, safe subprocesses, sockets, and semaphores) River stage five • 10313 direct dependents • 30438 total dependents

The basic IPC facilities of Perl are built out of the good old Unix signals, named pipes, pipe opens, the Berkeley socket routines, and SysV IPC calls. Each is used in slightly different situations....

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

perlsub - Perl subroutines River stage five • 10313 direct dependents • 30438 total dependents

Like many languages, Perl provides for user-defined subroutines. These may be located anywhere in the main program, loaded in from other files via the "do", "require", or "use" keywords, or generated on the fly using "eval" or anonymous subroutines. ...

XSAWYERX/perl-5.30.0 - 22 May 2019 09:35:50 GMT

perlsub - Perl subroutines River stage five • 10313 direct dependents • 30438 total dependents

Like many languages, Perl provides for user-defined subroutines. These may be located anywhere in the main program, loaded in from other files via the "do", "require", or "use" keywords, or generated on the fly using "eval" or anonymous subroutines. ...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

perlsec - Perl security River stage five • 10313 direct dependents • 30438 total dependents

Perl is designed to make it easy to program securely even when running with extra privileges, like setuid or setgid programs. Unlike most command line shells, which are based on multiple substitution passes on each line of the script, Perl uses a mor...

XSAWYERX/perl-5.30.0 - 22 May 2019 09:35:50 GMT

perlsec - Perl security River stage five • 10313 direct dependents • 30438 total dependents

Perl is designed to make it easy to program securely even when running with extra privileges, like setuid or setgid programs. Unlike most command line shells, which are based on multiple substitution passes on each line of the script, Perl uses a mor...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

perlvar - Perl predefined variables River stage five • 10313 direct dependents • 30438 total dependents

The Syntax of Variable Names Variable names in Perl can have several formats. Usually, they must begin with a letter or underscore, in which case they can be arbitrarily long (up to an internal limit of 251 characters) and may contain letters, digits...

XSAWYERX/perl-5.30.0 - 22 May 2019 09:35:50 GMT

perlvar - Perl predefined variables River stage five • 10313 direct dependents • 30438 total dependents

The Syntax of Variable Names Variable names in Perl can have several formats. Usually, they must begin with a letter or underscore, in which case they can be arbitrarily long (up to an internal limit of 251 characters) and may contain letters, digits...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

Pumpkin - Notes on handling the Perl Patch Pumpkin And Porting Perl River stage five • 10313 direct dependents • 30438 total dependents

This document attempts to begin to describe some of the considerations involved in patching, porting, and maintaining perl. This document is still under construction, and still subject to significant changes. Still, I hope parts of it will be useful,...

SHAY/perl-5.30.1 - 10 Nov 2019 14:14:00 GMT

Pumpkin - Notes on handling the Perl Patch Pumpkin And Porting Perl River stage five • 10313 direct dependents • 30438 total dependents

This document attempts to begin to describe some of the considerations involved in patching, porting, and maintaining perl. This document is still under construction, and still subject to significant changes. Still, I hope parts of it will be useful,...

XSAWYERX/perl-5.30.0 - 22 May 2019 09:35:50 GMT

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