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In Ginga-NCL, Lua is integrated as media objects (called NCLua) inside NCL (Nested Context Language) documents. GrafX2, a pixel-art editor, can run Lua scripts for simple picture processing or generative illustration. HAProxy, a reverse proxying software, may be extended with Lua starting from version 1.6. [12]
A project of Google, it is free and open-source software released under the Apache License 2.0. [2] It typically runs in a web browser, and visually resembles the language Scratch. Blockly uses visual blocks that link together to make writing code easier, and can generate code in JavaScript, Lua, Dart, Python, or PHP.
Scribunto Lua reference manual; Programming in Lua; Introduction to Lua patterns; About regex. Lua "patterns" are based on Regex (Patterns are a reduced set of regex). Help:Lua metamodules: Lua in Wikipedia has several meta-modules available that can make core functions easily available.
Many non-game applications also use Lua for extensibility, such as LuaTeX, an implementation of the TeX type-setting language, Redis, a key-value database, ScyllaDB, a wide-column store, Neovim, a text editor, Nginx, a web server, Wireshark, a network packet analyzer and Pure Data, a visual audio programming language (through the pdlua extension).
Here are some short points about Lua, for those who already know other computer programming languages and how to program. They focus mainly upon what you might find different in Lua. Lua is dynamically typed. There's no static typing at all.
Lua patterns deliberately lack the most complex regular expression constructs (to avoid bloating the Lua code base), where many other computer languages or libraries use a more complete set. Lua patterns are not even a subset of regular expressions, as there are also discrepancies, like Lua using the escape character % instead of \, , and ...
Similarly, a lot of the Lua library functions are, for security, not available in modules. (For example, it's not possible to do file I/O or to make operating system calls in MediaWiki modules.) So, much of what these books explain about Lua standard library functions and variables that come with the language is either irrelevant or untrue here.
Scratch 2.0 uses the *.sb2 file format. These are zip files containing a .json file as well as the contents of the Scratch project including sounds (stored as .wav) and images (stored as .png). [70] Each filetype, excluding the project.json, is stored as a number, starting at 0 and counting up with each additional file.