Wren - Programming language

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Wren is an open source programming language created in 2013 by Bob Nystrom.

#157on PLDB

13Years Old

8Repos

Download source code:

git clone https://github.com/munificent/wren

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Wren is a small, fast, class-based concurrent scripting language.

Tags: programming language
Wren is developed on GitHub and has 6,832 stars
There are at least 8 Wren repos on GitHub
Wren is written in Markdown, C, Python, HTML, XML, Lua, Ruby, JavaScript, Dart, CSS, Pascal, Make, YAML, Bourne shell, SVG
The Google BigQuery Public Dataset GitHub snapshot shows 3 users using Wren in 3 repos on GitHub
Explore Wren snippets on Rosetta Code
ANTLR grammar for Wren
Learn Wren on exercism.
Read more about Wren on the web: 1.

Example from the web:

System.print("Hello, world!")

class Wren {
  flyTo(city) {
    System.print("Flying to %(city)")
  }
}

var adjectives = Fiber.new {
  ["small", "clean", "fast"].each {|word| Fiber.yield(word) }
}

while (!adjectives.isDone) System.print(adjectives.call())

Example from hello-world:

IO.print("Hello World")

Language features

Feature	Supported	Example	Token
Strings	✓	"Hello world"	"
Print() Debugging	✓		IO.print
Comments	✓	// A comment
Line Comments	✓	// A comment	//
Semantic Indentation	X