Control statements in perl pdf cpan

Conditional statements, using if, else, elsif in perl perl maven. After the program executes one statement, it moves to the. Note also that the loop control statements described later will not work in this construct, because modifiers dont take loop labels. The comprehensive perl archive network cpan currently has 192,739 perl modules in 41,3 distributions, written by,918 authors, mirrored on 254 servers the archive has been online since october 1995 and is constantly growing. Cpan can denote either the archive network itself, or the perl program that acts as an interface to the network and as an automated software installer somewhat like a package manager. This module provides yet another switch statement for perl. The module augments the standard perl syntax with two new control statements. Perl is widely known as the ducttape of the internet. Loop control statements change the execution from its normal sequence. Pdfapi2 facilitates the creation and modification of.

So far in the tutorial each statement got executed one after the other. Pdf api2 will aim to support all major perl versions that were released in the past six years, plus one, in order to continue working for the life of most longtermstable lts server distributions. The perl interpreter can be embedded into other systems. The switch statement takes a single scalar argument of any type, specified in parentheses. Most programming languages do have recursive syntax, and thus can. There are cases when we want to execute certain statements only if some condition is met. This modified text is an extract of the original stack overflow documentation created by following contributors and released under cc bysa 3.

Find more tutorials and scripts at, a programming and software development resource, directory and community. Perl and the web perl used to be the most popular web programming language due to its text manipulation capabilities and rapid development cycle. The general form of an ifthenelse type of control statement is as follows. For ease of access, the perl manual has been split up into several sections. Perl supports many kinds of conditional statements statements that are based on boolean results. Boolean context occurs when you use a value in a conditional statement. The most common conditional statements are ifelse, unless, and ternary statements.