MAT Syntax Highlighting

Official VS Code extension providing syntax highlighting, auto-indentation, and a custom color theme for the mat programming language (.mat).

Features

• Full Keyword & Syntax Coverage: Highlighting for control flow (fori, for, in, while, loop, match, if, else, return, break, continue), visibility (pub), imports (import), and declaration keywords (fn, let, mut, struct, enum).
• Boolean Primitives: Highlights mat native booleans (tru and fal).
• Rich Number Formats: Full support for decimal, hexadecimal (0xA5), binary (0b10100100), floating-point values, and underscore digit separators (1_000_000).
• String Interpolation: Distinct inline highlighting for expressions embedded inside string literals ("Hello {name}").
• Operators & Mutations: Full tokenizer coverage for unary mutations (++, --), compound bitwise shift operators (<<=, >>=), namespace resolution (::), match arrows (=>), and type signatures (->).
• Type Highlighting: Support for primitive types (int, i32, i16, i8, f64, bool, char) and standard built-ins (Result, Ok, Err, Vec, String).
• Custom Color Theme: Includes the tuned MAT-Lang Syntax Highlighting dark color theme.
• Language Integration: Auto-closing pairs, comment toggling (//), bracket matching, and automatic brace/pattern-match indentation.

Code Showcase (example.mat)

import std::io;

pub struct Point {
    pub x: int,
    pub y: int,
}

pub enum Shape {
    Circle(f64),
    Rectangle(Point, Point),
}

fn main() {
    let mut score: int = 50;
    let is_active: bool = tru;
    let mask: i32 = 0xA5;

    // String Interpolation
    let name: String = "World";
    println("Hello {name}!");

    // Operators & Loops
    score++;
    score <<= 2;

    fori (let i: int = 0; i < 5; i++) {
        score += i;
    }

    // Pattern Matching
    let shape: Shape = Shape::Circle(3.14);
    match shape {
        Shape::Circle(r) => println("Radius: {r}"),
        Shape::Rectangle(p1, p2) => println("Rectangle"),
    }
}

Usage

1. Open any .mat file—syntax highlighting will activate automatically.
2. To enable the optional bundled color theme:

• Open the Command Palette: Ctrl+Shift+P (or Cmd+Shift+P on macOS)
• Select: Preferences: Color Theme
• Choose: MAT-Lang Syntax Highlighting

Installation

From VS Code Marketplace

Search for MAT Syntax in the VS Code Extensions tab (Ctrl+Shift+X), or install directly via CLI:

code --install-extension HardBoss07.mat-lang-syntax

From Local VSIX Package

1. Build the VSIX package from the extension directory:

vsce package

2. Install the generated .vsix package:

code --install-extension mat-lang-syntax-0.0.2.vsix

Contributing

Issues, feedback, and pull requests are welcome on GitHub!