"jlox" scripting language from Crafting Interpreters

• Integers and floats are separate types

• Floats support scientific notation ( 3.4e3 )

• Supports block comments ( /* ... */ )

• Supports modulo operator ( % )

• Supports comma operator ( expr1, expr2 )

• Supports conditional operator ( cond ? then : else )

• Handles division by zero

• Supports break statements

• Supports continue statements

• Supports anonymous functions ( fun() {} )

• Supports arithmentic assignment operators ( +=, -=, *=, /=, %= )

• Supports prefix and postfix increment and decrement operators ( ++, -- )

• Supports arrays ( [1, "2", true] ) and some methods in the Array class

• Classes support native methods

• Classes support static methods via Metaclasses ( MyClass.method() )

• Classes support getter methods ( class MyClass { getter { return this.field } } )

• Classes support calling methods as static methods ( arr.push(1) => Array.push(arr, 1) )

• Error messages show line and column

• Reports warnings when a local variable is never used

• The REPL supports printing the value of expressions

• The REPL prints values in different colors depending on their type