An extendable syntax highlighter written in Rust.
Simply add highlighter to your dependencies:
[dependencies] highlighter = "0.1.1-alpha"
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); }
To extend Highlighter, make a structure which implements the Language trait.
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); }