ground_fork/docs/writing-a-program.md

Writing programs with Ground

Ground is a very easy language to learn. In this guide, you will learn how to write a simple calculator in Ground, as well as best practices (which there aren't many of, since Ground is so simple).

Note: This assumes you've read and understand the syntax.md document in this folder.

Let's start!

Open a new file with the .grnd extension. Should look something like this:

(Real empty in that file.)

Let's add some code! Create a label for the start, since we'll loop back once we've calculated, and ask for the user's input:

@start
stdout "Calculation: "
stdin &calc

At the calc variable, we have whatever the user typed in. This should look something like 9+10, 1 / 3 or who knows what else. But first we should organise this data. Let's create a loop to iterate through this input, and a counter to keep moving forward: