starlark - Programming language

starlark is a programming language created in 2018 by Laurent Le Brun.

#117on PLDB

6Years Old

3kRepos

Download source code:

git clone https://github.com/bazelbuild/starlark

The language used in Bazel. Starlark is designed to be small, simple, and thread-safe. Although it is inspired from Python, it is not a general-purpose language and most Python features are not included. Starlark is syntactically a subset of Python 3

Tags: programming language
starlark is developed on GitHub and has 2,392 stars
There are at least 3,423 starlark repos on GitHub
Early development of starlark happened in https://github.com/bazelbuild
starlark is written in Markdown, Python, Bazel, YAML, Bourne shell
The Google BigQuery Public Dataset GitHub snapshot shows 562 users using starlark in 1k repos on GitHub
Read more about starlark on the web: 1.
18 PLDB concepts link to starlark: asterius-compiler, Bazel, Cap'n Proto, Carbon, Claro, cloc, Closure Templates, FlatBuffers, JFlex, Jsonnet, Kubernetes, MongoDB, Node.js, PCRE, PyTorch, TensorFlow, v8, YARA

Example from the web:

# Define a number
number = 18

# Define a dictionary
people = {
    "Alice": 22,
    "Bob": 40,
    "Charlie": 55,
    "Dave": 14,
}

names = ", ".join(people.keys())  # Alice, Bob, Charlie, Dave

# Define a function
def greet(name):
  """Return a greeting."""
  return "Hello {}!".format(name)

greeting = greet(names)

above30 = [name for name, age in people.items() if age >= 30]

print("{} people are above 30.".format(len(above30)))

def fizz_buzz(n):
    """Print Fizz Buzz numbers from 1 to n."""
    for i in range(1, n + 1):
        s = ""
        if i % 3 == 0:
            s += "Fizz"
        if i % 5 == 0:
            s += "Buzz"
        print(s if s else i)

fizz_buzz(20)

Example from hello-world:

print("Hello World")

Language features

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