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A single uppercase letter, two or more less-than signs (<<), a space, the content to be formatted, another space, and the same number of greater-than signs as were used before, e.g. B<< bolded text >>. This form is often used for code snippets containing a greater-than sign, which would otherwise end the formatting code.
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).
Category:Articles with example Perl code This page is a soft redirect. This is a list of articles which contain programming examples with source code written in the programming language Perl: Action at a distance (computer science) Hello world program; Just another Perl hacker; Perl; Schwartzian transform
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.
There are many ways to write object-oriented code in Perl. The most basic is using "blessed" references. This works by identifying a reference of any type as belonging to a given package, and the package provides the methods for the blessed reference. For example, a two-dimensional point could be defined this way:
Pretty-printing (or prettyprinting) is the application of any of various stylistic formatting conventions to text files, such as source code, markup, and similar kinds of content. These formatting conventions may entail adhering to an indentation style , using different color and typeface to highlight syntactic elements of source code, or ...
Note that the C code under the CODE: section calls the _do_sv_catsv() pure-C function that was defined in the prior section. Perl’s documentation explains the meaning and purpose of all of the “special” symbols (e.g., aTHX_ and RETVAL) shown above. To make this module available to Perl it must be compiled.