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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. Examples
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!'
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).
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
Perl: Application, scripting, text processing, Web Yes Yes Yes Yes Yes Yes No PHP: Server-side, web application, web Yes Yes [37] Yes [38] Yes No Yes De facto standard via language specification and Requests for Comments (RFCs) PL/I: Application Yes Yes No Yes No No Yes 1969, ECMA-50 (1976) Plus: Application, system development Yes No No Yes No ...
Many domain-specific languages do not compile to byte-code or executable code, but to various kinds of media objects: GraphViz exports to PostScript, GIF, JPEG, etc., where Csound compiles to audio files, and a ray-tracing domain-specific language like POV compiles to graphics files.
In some of these languages, this syntax is a here document or "heredoc": A token representing the string is put in the middle of a line of code, but the code continues after the starting token and the string's content doesn't appear until the next line. In other languages, the string's content starts immediately after the starting token and the ...
There is also a code for linking between pod documents or to another section within the same document. Formatting codes consist of either: A single uppercase letter, followed by a less-than sign (<), the content to be formatted, and a greater-than sign (>), e.g. B<bolded text>, or