Code Block Language Detector

A lightweight Node.js package to detect the programming language of a given code snippet. Built on top of highlight.js, it supports a wide range of programming languages.

Features

• Detects programming language from code snippets.
• Supports popular languages like JavaScript, Python, C++, Java, and more.
• Option to restrict detection to specific languages for better accuracy.
• Lightweight and easy to integrate.

Installation

Install the package via npm:

npm install code-block-language-detector

Usage

Basic Usage

Detect the programming language of a given code snippet:

const detectLanguage = require("code-block-language-detector");

const code = `const x = 42; console.log(x);`;
const language = detectLanguage(code);

console.log(language); // Output: 'javascript'

Restricting to Specific Languages

const detectLanguage = require("code-block-language-detector");

const code = `SELECT * FROM users WHERE age > 21;`;
const language = detectLanguage(code, ["sql", "javascript", "python"]);

console.log(language); // Output: 'sql'

Error Handling

If the provided code snippet is invalid or detection fails, the function returns "unknown":

const code = `+++---===`;
const language = detectLanguage(code);

console.log(language); // Output: 'unknown'

Supported Languages

The following languages are currently supported:

• JavaScript
• Python
• Java
• C
• C++
• Ruby
• PHP
• TypeScript
• Go
• Swift
• Kotlin
• Rust
• C#
• HTML
• CSS
• JSON
• YAML
• Bash
• SQL
• Perl
• R
• Dart
• Scala
• Shell