https://github.com/n4ze3m/sloth

Sloth is a simple interpeter written in Golang.
https://github.com/n4ze3m/sloth

golang interpeter programming-language sloth

Last synced: 9 days ago
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Sloth is a simple interpeter written in Golang.

• Host: GitHub
• URL: https://github.com/n4ze3m/sloth
• Owner: n4ze3m
• License: mit
• Created: 2021-09-28T07:24:57.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-02-20T17:35:39.000Z (almost 3 years ago)
• Last Synced: 2024-11-19T21:52:42.575Z (about 2 months ago)
• Topics: golang, interpeter, programming-language, sloth
• Language: Go
• Homepage: https://sloth.n4ze3m.com/
• Size: 48.8 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Sloth

Sloth is a simple interpeter written in Golang. This is hoby project for learning golang. I converted this to WebAssembly :) program, now i can run it on browser.

## Syntax

This is a simple syntax for sloth. currently, sloth works with following syntax in repl.

Variable declaration in sloth is like this:

    var name = value

1. Addition of two numbers

```shell

>>> var a = 10

>>> var b = 20

>>> a + b

30

```

Note: Sloth support all basic arithmetic operations except `>=` and `<=`.

2. Function

```shell

>>> var add = fun(a,b) { return a + b};

>>> add(1,2)

3

```

3. If else statement

```shell

>>> var isten = fun(a) { if(a == 10) { return "yes" } else { return "no"} }

>>> isten(10)

yes

>>> isten(11)

no

```

4. String concatenation

```shell

>>> var say = "hello" + " " + "world"

>>> say

hello world

>>> var say = concat("hello", "world")

>>> say

hello world

```

5. Built-in functions

- `len(a)`: returns length of array

- `concat(a,b)`: concatenates two strings

6. Array

```shell

>>> var a = [1,2 + 2,3]

>>> a[0]

1

>>> a[1]

4

```

## Build

1. WASM build

```shell

$ cd wasm

$ $ENV:GOOS="js"

$ $ENV:GOARCH="wasm" 

$ go build -o ../build/sloth.wasm

```

# Btw

I wrote this project based on Thorsten Ball's [Writing an Interpreter in Go](https://interpreterbook.com/).