Category:Arturo

Arturo
This programming language may be used to instruct a computer to perform a task.

Official website

Execution method:	Interpreted
Garbage collected:	Yes
Parameter passing methods:	By value
Type safety:	Safe
Type strength:	Strong
Type checking:	Dynamic
Lang tag(s):	arturo
See Also:	Arturo on the HOPL

Listed below are all of the tasks on Rosetta Code which have been solved using Arturo.

Arturo is a general-purpose, multi-paradigm language that aims to be simple, modern and powerful, vaguely inspired by various other ones - including but not limited to Ruby, Haskell, D, SDL (Simple Declarative Language), Tcl and Lisp.

Principles[edit]

It is built on some very simple and straightforward principles:

Everything is a simple statement[edit]

There are no "special" language constructs (*even `if` is nothing but a simple statement*). Everything you see is a statement in the form ID <expression> <expression> <expression> .... An assignment is nothing but a labeled statement. LABEL: <statement>

Code is data - and data is code[edit]

Arturo can be used both as a data-interchange format and a programming language. Basically all data structures are valid code and all code can be represented as a data structure. Think of it as SDL/Json/YAML/XML combined with the power of Lisp - but without the... sea of opening and closing parentheses.

Each statement returns a value[edit]

Whether what you would consider a "function" or any other statement, it will return a value. If it's a block of code (see: function), the last statement's result will be return - unless specified otherwise.

Functions are first-class citizens[edit]

Functions - or blocks of statements enclosed in {} - can be anything. Assign them to a symbol/variable, pass them around as arguments to function calls, include them as a dictionary key value, or return them from a function. And of course they can be either named or anonymous/lambda.

Uniform syntax[edit]

There are 3 types of statements.

• Simple statements, that work as a function call in the form of ID <expressions>
• Expressions (Yes, 1+2 is also a valid statement)
• Labeled statements (see: assignments) like a: 2

Pro tip: Do you want to use the result of a statement as part of an expression? Just enclose the function call in square brackets [...] E.g.: print [reverse #(1 2 3)]

Implementation[edit]

The main Arturo interpreter is written in the Nim language.

License[edit]

Arturo is released under the MIT/X11 License.

Todo[edit]

Reports:Tasks_not_implemented_in_Arturo