return codes
0 = success
2 = not implemented
1 = unknown error
3 = grammar error
34 = Unknown keyword
35 = Unknown type
36 = Unknown operator
37 = Unknown assignment operator

grammar:

    keywords: define, compare, do, repeat, index, end
    types: func, string, integer, float, list
    built-in functions: print, input, append, pop, size
    operators: + - / *
    assignment operators: = += -= *= /=
    comparisment operators: > < >= <= == != in
    things in {} is considered code and will be executed first when for example assigning a variable, example: define string teststring {do input}

    keywords usage:
    define <datatype> <name> <initial value>
    compare <operand 1> <comparisment operator> <operand 2> <code block>
    do <target> <additional operands> (used in both variable manipulation and function calling. variable manipulation example: do foo = 3   function call example: do foo "hello world!")
    repeat <operand 1> <comparisment operator> <operand 2> <code block> (the code block is executed as often until the comparisment statement returns true)
    index <target> <target index> (return element of target at given index. lists and strings are only supposed to work)
    strings are marked by either "" or ''

example code, used to test the parser:

define string anotherfoo "{codeblockinsidestringtest}"
define string anotherfoo2 "ja, das sind 2''."
define func foofunction {
    define func functioninsideafunction {
        define string foo2 "FIAF"
        do print foo
    }
    define string foo "Hello, World!"
    do print foo
    do functioninsideafuntion
}
do foofunction