calclang

This repo is now deprecated, in favor of the much faster, vastly improved CalcLang2.

Examples

calclang

A pointless scripting language that does math. Made with ANTLR 4 and Java. Terrible docs.

Types

The only type is Double. They can be negative, and you may omit the decimals. Hexadecimal is accepted too.

    0x10 becomes 16.0
    3 becomes 3.0
    3.5 because 3.5

Keywords

• else
• end
• fn
• if
• inc
• loop
• print
• ret

Strings

In a word, no. However, you can print. ES6-like string interpolation is allowed. Just include an expression. Yes, you can perform arithmetic, call functions, or resolve variables within strings.

    print "Not another hello world..."
    print "${2 + 2} = 4"

Boolean

Booleans in Calclang are mapped to numbers.

    true becomes 1.0
    false becomes 0.0
    1.0 == true
    0.0 == false

    if (true)
        print "Hello, bool!"
    end if

"Standard Lib"

• Predefined Constants:
  • PI
  • AVOGADRO
  • PLANCK
  • SPEED_OF_LIGHT
  • E
  • I
  • INFINITY
• Predefined Functions:
  • All of these guys:
  • 
  • rnd is Math.random
  • root(x, n) - Return the nth root of x
  • log(x, base) - logarithm with base other than E or 10
  • rad/deg - Convert to rad/deg
  • avg Returns the average of all arguments

Usage

1. Build the jar, or compile the source and run the classes.
2. Run it with the option -h.
3. With no options, you will enter... REPL mode. Which, of course, is broken.
4. Not all of the examples work yet... i.e. Fibonacci

Build

To reproduce...

mvn clean install

Stuff

• You must have an fn main() block for anything to happen.

Variables

• Only can declare variables within functions.
• If you want to do it globally, prefix with "global"

global one = 1

fn hi()
    two = 2
    print "one=${one}, two=${two}"
end fn

Functions

• No nesting yet

// Can have 0 or more params. The parentheses() are required.
// You must have a return statement.
fn sinFromDegrees(deg)
    ret sin(rad(deg))
end sinFromDegrees

Includes

• Only at the top of the file

    inc "./myfile.calc"

Loop

• No for statements yet, sorry

times = 5000
loop times
    print "I like it!"
end loop

Example

Math Samples

Mass Stoichiometry

Geometry, Printing

Fibonacci