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There are also functions for producing HTML or XHTML output, but these are now unmaintained and are to be avoided. [1] CGI.pm was a core Perl module but has been removed as of v5.22 of Perl. [ 1 ] The module was written by Lincoln Stein and is now maintained by Lee Johnson.
Perl Programming Documentation, also called perldoc, is the name of the user manual for the Perl 5 programming language. It is available in several different formats, including online in HTML and PDF. The documentation is bundled with Perl in its own format, known as Plain Old Documentation (pod).
An example of the printf function. printf is a C standard library function that formats text and writes it to standard output.. The name, printf is short for print formatted where print refers to output to a printer although the functions are not limited to printer output.
This includes Perl itself, nearly all publicly released modules, many scripts, most design documents, many articles on Perl.com and other Perl-related web sites, and the Parrot virtual machine. Pod is rarely read in the raw, although it is designed to be readable without the assistance of a formatting tool.
Perl is a language allowing many different styles of programming. A developer is as likely to find a module written in a procedural style (for example, Test::Simple) as object-oriented (e.g. XML::Parser), both are considered equally valid according to what the module needs to
Perl. Block comments in Perl are considered part of the documentation, and are given the name Plain Old Documentation (POD). Technically, Perl does not have a convention for including block comments in source code, but POD is routinely used as a workaround. PHP. PHP supports standard C/C++ style comments, but supports Perl style as well. Python
After then follow any number of plain C functions that are callable locally. The section that starts with MODULE = Demo::XSModule defines the Perl interface to this code using the actual XS macro language. Note that the C code under the CODE: section calls the _do_sv_catsv() pure-C function that was defined in the prior section.
Version 5.10 of Perl introduces a say function that implicitly appends a newline character to its output, making the minimal "Hello World" program even shorter: use 5.010 ; # must be present to import the new 5.10 functions, notice that it is 5.010 not 5.10 say 'Hello, World!'