simple-lang

A very simple programming language written in Ruby.

Features:

• Floating-point and function literals
• Variables
• Arithmetic operations
• case-when statement

Using Parslet for constructing the parser.

Examples

Example (Closure):

get_counter = () =>
  count = 0
  () =>
    count = count + 1
  end
end

counter = get_counter()

print(counter())
print(counter())

Result:

1.0
2.0

Example (Recursion):

sum = (x, memo) =>
  case x
  when 0
    memo
  else
    sum(x-1, memo + x)
  end
end

print(sum(10, 0))

Result:

55.0

Example (Object):

Counter = () =>
  self = Object()
  count = 0
  self.get_count = () =>
    count
  end
  self.increment = () =>
    count = count + 1
  end
  self
end

c = Counter()
print(c.get_count())
c.increment()
print(c.get_count())

Result:

0.0
1.0

License

The MIT License.