An simple and experimental programming language written in Python 3.

• print statement
• Variables
  • let statement
  • const statement (MAYBE)
  • del statement
• Literals
  • Strings
  • Integers
  • Booleans
  • Floats
  • Undefined
• Control structures
  • Conditionals
  • Loops

If you have an idea, open an issue or submit a pull request to add it on this roadmap.

The language is written in pure Python and that's why is easy to install and use. Simple clone this repository and use python -m zed <filename> command to run a .zed file.

$ git clone https://github.com/nerdguyahmad/zed-lang
$ cd zed-lang
$ python -m zed test.zed

Following is the documentation that documents current state of the language. This will be moved to a separate section when it gets big enough to get out of hand.

Statements are often referred as keywords. Each statement may or may not take one or more operands. For example, in print "Hello", print is the statement and "Hello" is the operand.

Prints the expr to the output.

• expr can be anything printable such as a string literal or identifier.

Defines a new variable.

• id is the name of variable
• When a value is specified e.g let a = 1, the variable a gets the value of 1
• When a value is NOT specified e.g let a, the variable a is defaulted to undefined sentinel

For example:

let a = 'Hello World'
let c
print a
print c

The output is:

Hello World
undefined

Deletes a variable.

• id is the name of variable to delete

For example:

let a = 'Hello World'
print a
del a
print a

The output is:

Hello World
On line 4, column 8, position 6:
error: identifer 'a' is not defined

Strings are the most basic types. A string literal can be defined by wrapping the literal inside single or double quotes.

Undefined (undefined) is a sentinel type used to represent undefined values. It can be referred to as simple undefined.