{{language|YAMLScript
|site=http://yamlscript.org/
}}
{{language programming paradigm|hosted}}
{{implementation|Lisp}}

'''[https://yamlscript.org YAMLScript]''' is a new programming language that uses [https://yaml.org/ YAML] as its syntax. It is a complete, functional, general purpose language, but can also be easily embedded in YAML files to make them dynamic at load time. Most existing YAML files and all JSON files are already valid YAMLScript programs. YAMLScript has a compiler/interpreter CLI program called <code>[https://github.com/yaml/yamlscript/releases ys]</code> and is also available in several programming languages as a binding module to the <code>[https://github.com/yaml/yamlscript/releases libyamlscript.so]</code> shared library:

* [https://clojars.org/org.yamlscript/clj-yamlscript Clojure]
* [https://clojars.org/org.yamlscript/yamlscript Java]
* [https://www.npmjs.com/package/@yaml/yamlscript NodeJS]
* [https://metacpan.org/pod/YAMLScript Perl]
* [https://pypi.org/project/yamlscript/ Python]
* [https://raku.land/zef:ingy/YAMLScript Raku]
* [https://rubygems.org/gems/yamlscript Ruby]
* [https://crates.io/crates/yamlscript Rust]

==Installing YAMLScript==

Run this command to install the <code>ys</code> command line YAMLScript runner/loader/compiler program.

  curl -sSL yamlscript.org/install | bash

That will install <code>$HOME/.local/bin/ys</code>. If <code>$HOME/.local/bin</code> is not in your <code>PATH</code>, run:

  export PATH=$HOME/.local/bin:$PATH

Test the new installation:

  $ ys --help
  ys - The YAMLScript (YS) Command Line Tool
 
  Usage: ys [options] [file]
 
  Options:
    -r, --run                Compile and evaluate a YAMLScript file (default)
    -l, --load               Output the evaluated YAMLScript value
    -e, --eval YSEXPR        Evaluate a YAMLScript expression
  ...

See https://yamlscript.org for more information.