Vienie

Vienie is a lightweight programming language with readable syntax, variables, functions, conditions, loops, collections, input/output, and a simple execution pipeline.

Installation

npm install -g vienie

Check the installation:

vienie --version

Run a program:

vienie program.vie

Commands

Setup highlighting syntax for nano:

vienie --setup-nano

Setup Highlighting syntax for vscode:

vienie --setup-vscode

For any other command use:

vienie -h

Quick Start

Create hello.vie:

let name = "World"

say "Hello, " + name

Run it:

vienie hello.vie

Syntax

| Syntax | Purpose | Example | |---|---|---| | let | Declare a variable | let name = "Nova" | | say | Print output | say "Hello" | | ask | Read user input | ask "Your name?" | | if | Conditional branch | if age >= 18 { ... } | | otherwise | Alternative branch | otherwise { ... } | | repeat | Repeat a block | repeat 3 { ... } | | each | Iterate over values | each item in items { ... } | | in | Select the collection for iteration | each item in items { ... } | | make | Define a function | make add(a, b) { ... } | | give | Return a value | give a + b | | [] | Create an array | let items = [1, 2, 3] | | # | Add a comment | # This is a comment |

Functions

make add(a, b) {
    give a + b
}

say add(10, 5)

Conditions

let age = 17

if age >= 18 {
    say "Adult"
} otherwise {
    say "Minor"
}

Loops

repeat 3 {
    say "Vienie!"
}

let names = ["Ari", "Mika", "Rin"]

each name in names {
    say name
}

Operators

+   -   *   /
==  !=  <   >
<=  >=

Comments

# A Vienie comment
let value = 42

Language Pipeline

Vienie Source
     ↓
   Lexer
     ↓
   Parser
     ↓
    AST
     ↓
  Runtime

The implementation separates lexical analysis, parsing, the abstract syntax tree, and runtime execution.

Syntax Highlighting

Vienie source files use the .vie extension.

Editors can distinguish language constructs such as:

• let, make for declarations
• say, ask for input/output
• if, otherwise, repeat, each, in for control flow
• give for returned values
• strings, numbers, comments, and function calls

Example Program

let name = "Vienie"
let count = 3

say "Welcome to " + name

repeat count {
    say "Learning Vienie"
}

make multiply(a, b) {
    give a * b
}

say multiply(6, 7)

Project Status

Current version: 0.3.1

Vienie is actively evolving. Future releases may expand the standard library, tooling, editor support, and language features while keeping the syntax focused and readable.

Changelog

0.3.1

• Added syntax highlighting for nano
• Added syntax highlighting for vscode
• More vienie CLI commands

0.3.0

• Expanded core language syntax
• Variables and expressions
• Functions with parameters and return values
• Conditional execution
• Repetition and collection iteration
• Arrays
• Input and output
• Comments
• .vie source files
• Syntax highlighting support
• CLI execution through vienie

License

MIT