https://github.com/trimorphdev/highlighter

An extendable syntax highlighter written in Rust.
https://github.com/trimorphdev/highlighter

lexer lexer-framework rust rust-crate rust-crates syntax syntax-highlight syntax-highlighting syntax-highlighting-theme

Last synced: about 3 hours ago
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An extendable syntax highlighter written in Rust.

• Host: GitHub
• URL: https://github.com/trimorphdev/highlighter
• Owner: trimorphdev
• License: mit
• Created: 2022-08-28T08:40:47.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2022-08-28T15:31:35.000Z (about 2 years ago)
• Last Synced: 2024-10-31T11:26:33.407Z (16 days ago)
• Topics: lexer, lexer-framework, rust, rust-crate, rust-crates, syntax, syntax-highlight, syntax-highlighting, syntax-highlighting-theme
• Language: Rust
• Homepage:
• Size: 17.6 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Highlighter

An extendable syntax highlighter written in Rust.

## Installation

Simply add highlighter to your dependencies:

```toml

[dependencies]

highlighter = "0.1.1-alpha"

```

## Basic Usage

```rust

use highlighter::{highlight_language, HighlightTargetHtml};

fn main() {

    let result = highlight_language("brainheck", "++++++++ set current cell to 8").unwrap().unwrap();

    let html = HighlightTargetHtml::new()

        .build(result);

    println!(html);

}

```

## Implementing Languages

To extend Highlighter, make a structure which implements the `Language` trait.

```rust

extern crate highlighter;

use highlighter::{core::language::{Language, Scope}, highlight, HighlighterTargetHtml};

/// My example programming language

pub struct MyLanguage;

impl Language for MyLanguage {

    fn name(&self) -> String {

        "my-language".to_string()

    }

    

    fn init(&self, cx: &mut highlighter::core::LexerContext) -> Result<(), highlighter::core::Error> {

        // Initialize the tokens in your language.

        cx.token(Scope::KeywordControl, "\\b(if|else|while|continue|break|return)\\b")?;

        cx.token(Scope::StorageType, "\\b(var|function)\\b")?;

        cx.token(Scope::ConstantNumber, "\\b([0-9][0-9_]*)\\b")?;

        cx.token(Scope::ConstantLanguage, "\\b(true|false)\\b")?;

        Ok(())

    }

}

fn main() {

    let tokens = highlight(MyLanguage, "var i = 0;").unwrap();

    let html = HighlighterTargetHtml::new()

        .build(tokens);

    

    println!("{}", html);

}

```