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1. #CURSOR RIGHT HAMMERSPOON INSTALL#
2. #CURSOR RIGHT HAMMERSPOON ZIP FILE#
3. #CURSOR RIGHT HAMMERSPOON FREE#

You will notice that sometimes, functions contained within a module are called with a dot, and others with a colon.

#CURSOR RIGHT HAMMERSPOON FREE#

In practice, I’ve found myself using both notations somewhat exchangeably - feel free to use whichever you find most comfortable. Since the file variable is being passed as the first argument, you could rewrite this statement as file:match('/'). In string.match(file, '/'), we see the function notation used to call string.match(). This statement is equivalent to string.sub(file, -4). This invokes the string.sub() function, automatically passing the file variable as its first argument. In file:sub(-4), the colon indicates the object-oriented notation (see “Lua dot-vs-colon method access” below). Our first glimpse into the Lua string library, and the two ways in which it can be used: In this case we are not interested in the key in each iteration, just the value, so we assign the key to _, never to be used again. The _ variable, while not special per se, is used by convention in Lua for “throwaway values”. pairs() treats the files variable as an associative array, and returns in each iteration a key/value pair of its contents. We will learn more about Lua tables below, but they can be used to represent both regular and associative arrays. The pairs() function, which loops over a table. Going back to our example, we can also learn the following: This form loops the variable from the first to the last value, incrementing it by the given increment (defaults to 1) at each iteration. Lua includes all the common flow-control structures you might expect. Instead of detailing every structure, I will focus on the aspects that are most different or that are most likely to trip you up as you learn it. I assume you are a programmer who knows some other C-like language–if you already know C, Java, Ruby, Python, Perl, Javascript or some similar language, picking up Lua should be pretty easy. The purpose of this section is to give you a quick overview of the Lua features and peculiarities you may find most useful for developing Hammerspoon policies. It is easy to learn and use while having pretty powerful features, and is frequently used in games, but also in many other applications including, of course, Hammerspoon. Lua is a scripting language created in 1993, and focused from the beginning in being an embedded language for extending other applications. Along the way you will discover that Lua is a surprisingly powerful language. In this 2-part article I will show you the basics of Lua so you can read and write Hammerspoon configuration. Hammerspoon’s configuration files are written in Lua, so a basic knowledge of the language is very useful to be an effective user of Hammerspoon. For example, if you use the Seal spoon (a configurable launcher), you need to call its loadPlugins() method to specify which Seal plugins to use.Just Enough Lua to Be Productive in Hammerspoon, Part 1 This can be used to execute other startup or configuration actions that are not covered by the other attributes. Start is a boolean value which indicates whether to call the Spoon’s start() method (if it has one) after configuring everything else.įn specifies a function which will be called with the freshly-loaded Spoon object as its first argument. The valid values for this attribute are ‘nothing’, ‘error’, ‘warning’, ‘info’, ‘debug’, or ‘verbose’. Loglevel sets the log level of the logger attribute within the spoon, if it exists. Type the following in the Hammerspoon console, or add it to your a file and reload the configuration: Once a Spoon is installed, you need to use the hs.loadSpoon() function to load it.

#CURSOR RIGHT HAMMERSPOON INSTALL#

Hammerspoon will install the Spoon under ~/.hammerspoon/Spoons/.

#CURSOR RIGHT HAMMERSPOON ZIP FILE#

To install the spoon, download its zip file from, unpack it, and double-click on the resulting MouseCircle.spoon file. Using a Spoon to locate your mouseĪs a first example, we will use the MouseCircle spoon, which allows us to set up a hotkey that displays a color circle around the current location of the mouse pointer for a few seconds, to help you locate it. See also the first article in this series. They are also a good way to share your own work with other users. Spoons provide a predefined API to configure and use them. In this second article about Hammerspoon, we look into Spoons, modules written in Lua which can be easily installed and loaded into Hammerspoon to provide ready-to-use functionality.