The Go+ Programming Language

Our vision is to enable everyone to create production-level applications.

Easy to learn

Simple and easy to understand
Smaller syntax set than Python in best practices

Ready for large projects

Derived from Go and easy to build large projects from its good engineering foundation

The Go+ programming language is designed for engineering, STEM education, and data science.

For engineering: working in the simplest language that can be mastered by children.
For STEM education: studying an engineering language that can be used for work in the future.
For data science: communicating with engineers in the same language.

For more details, see Quick Start.

Command Style Code

Different from the function call style of most languages, Go+ recommends command style code:

println "Hello world"

To emphasize our preference for command style, we introduce echo as an alias for println:

echo "Hello world"

For more discussion on coding style, see https://tutorial.goplus.org/hello-world.

Go+ Classfiles

One language can change the whole world.
Go+ is a "DSL" for all domains.

Rob Pike once said that if he could only introduce one feature to Go, he would choose interface instead of goroutine. classfile is as important to Go+ as interface is to Go.

In the design philosophy of Go+, we do not recommend DSL (Domain Specific Language). But SDF (Specific Domain Friendliness) is very important. The Go+ philosophy about SDF is:

Don't define a language for specific domain.
Abstract domain knowledge for it.

Go+ introduces classfile to abstract domain knowledge.

Sound a bit abstract? Let's see some Go+ classfiles.

STEM Education: spx: A Go+ 2D Game Engine
Web Programming: yap: Yet Another HTTP Web Framework
Web Programming: yaptest: HTTP Test Framework
Web Programming: ydb: Database Framework
DevOps: gsh: Go+ DevOps Tools
Unit Test: classfile: Unit Test
Mechanism: What's Classfile
Mechanism: Go+ Classfiles

spx: A Go+ 2D Game Engine

Through this example you can learn how to implement dialogues between multiple actors.

Here are some codes in Kai.spx:

onStart => {
	say "Where do you come from?", 2
	broadcast "1"
}

onMsg "2", => {
	say "What's the climate like in your country?", 3
	broadcast "3"
}

We call onStart and onMsg to listen events. onStart is called when the program is started. And onMsg is called when someone calls broadcast to broadcast a message.

When the program starts, Kai says Where do you come from?, and then broadcasts the message 1. Who will recieve this message? Let's see codes in Jaime.spx:

onMsg "1", => {
	say "I come from England.", 2
	broadcast "2"
}

Yes, Jaime recieves the message 1 and says I come from England.. Then he broadcasts the message 2. Kai recieves it and says What's the climate like in your country?.

The following procedures are very similar. In this way you can implement dialogues between multiple actors.

See spx: A Go+ 2D Game Engine for more details.

yap: Yet Another HTTP Web Framework

Demo of serving static files and ability to handle dynamic GET/POST requests:

static "/foo", FS("public")
static "/"    # Equivalent to static "/", FS("static")

get "/p/:id", ctx => {
	ctx.json {
		"id": ctx.param("id"),
	}
}

run ":8080"

If you run it and visit http://localhost:8080/p/123, you will get:

{"id":"123"}

See yap: Yet Another HTTP Web Framework for more details.

gsh: Go+ DevOps Tools

Yes, now you can write shell script in Go+. It supports all shell commands.

Let's create a file named ./example.gsh and write the following code:

mkdir "testgsh"

Don't need a go.mod file, just enter gop run ./example.gsh directly to run.

See gsh: Go+ DevOps Tools for more details.

Key Features of Go+

A static typed language.
The simplest engineering language that can be mastered by children (script-like style).
Performance: as fast as Go (Go+'s main backend compiles to human-readable Go).
Fully compatible with Go and can mix Go/Go+ code in the same package (see Go/Go+ hybrid programming).
No DSL (Domain Specific Language) support, but SDF (Specific Domain Friendliness).
Support Go code generation (main backend) and bytecode backend (REPL: see iGo+).
Simplest way to interaction with C (cgo is supported but not recommended).
Powerful built-in data processing capabilities.

How to install

on Windows

winget install goplus.gop

on Debian/Ubuntu

sudo bash -c ' echo "deb [trusted=yes] https://pkgs.goplus.org/apt/ /" > /etc/apt/sources.list.d/goplus.list'
sudo apt update
sudo apt install gop

on RedHat/CentOS/Fedora

sudo bash -c 'echo -e "[goplus]\nname=Go+ Repo\nbaseurl=https://pkgs.goplus.org/yum/\nenabled=1\ngpgcheck=0" > /etc/yum.repos.d/goplus.repo'
sudo yum install gop

on macOS/Linux (Homebrew)

Install via brew

$ brew install goplus

from source code

Note: Requires go1.18 or later

git clone https://github.com/goplus/gop.git
cd gop

# On mac/linux run:
./all.bash
# On Windows run:
all.bat

Go+ Applications

2D Games powered by Go+

Web Programming

DevOps Tools

gsh: Go+ DevOps Tools

Data Processing

hdq: HTML DOM Query Language for Go+

IDE Plugins

vscode: Go/Go+ for Visual Studio Code

Contributing

The Go+ project welcomes all contributors. We appreciate your help!

For more details, see Contributing & compiler design.

Give a Star! ⭐

If you like or are using Go+ to learn or start your projects, please give it a star. Thanks!

visualfc/gop