ADC

NetScaler extensions - language overview

August 1, 2023

Contributed by:

The extension language is based on the Lua 5.2 programming language. Lua provides a compact execution engine with good performance that is designed for embedding in C programs, like NetScaler software.

The extension language is dynamically typed, which means each object carries its own type information. Any variable can hold any type at any time during execution, so variable types are not declared.

The language is also free form, where white space between tokens is ignored. Statements may be separated by semicolons, but that is not required and usually not done. Blocks of statements are typically terminated by end. There are no brackets around blocks like the { and } in C or Java.

Identifiers are sequences of letters (a through z and A through Z), digits (0 through 9), and underscores (_), not starting in a digit. Identifiers are case-sensitive, so var, VAR, and Var are all different identifiers.

Comments are started by –. Everything after – is ignored to the end of the line. Example:

-- This is a comment.

The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.

NetScaler extensions - language overview

August 1, 2023

Contributed by:

August 1, 2023

Contributed by:

NetScaler extensions - language overview

In this article