syntect-assets

syntect syntax and theme assets from bat

why?

bat's syntect syntax is updated and improved compared to syntect builtin ones

usage

ref https://docs.rs/syntect/

/// A simple program that prints its own source code using the syntect-assets library
use syntect::parsing::SyntaxSet;
use syntect::highlighting::{ThemeSet, Style};
use syntect::util::as_24_bit_terminal_escaped;
use syntect::easy::HighlightFile;
use std::io::BufRead;
use syntect_assets::assets::HighlightingAssets;

fn main() {
    let assets = HighlightingAssets::from_binary();

    let ss = assets.get_syntax_set().unwrap();
    let theme = assets.get_theme("OneHalfDark");

    let mut highlighter = HighlightFile::new(file!(), ss, theme).unwrap();
    let mut line = String::new();
    while highlighter.reader.read_line(&mut line).unwrap() > 0 {
        {
            let regions: Vec<(Style, &str)> = highlighter.highlight_lines.highlight_line(&line, &ss).unwrap();
            print!("{}", as_24_bit_terminal_escaped(&regions[..], true));
        } // until NLL this scope is needed so we can clear the buffer after
        line.clear(); // read_line appends so we need to clear between lines
    }
}

troubleshooting

the latest syntax fixed many bugs, but we can not update to that.

for example, fenced golang now support both go and golang, prev just support golang, but most people use go for that.

the latest version fixed the issue:

https://github.com/sublimehq/Packages/blob/master/Markdown/Markdown.sublime-syntax

but syntect does not support sublime-syntax from Sublime Text Build 4075

see https://github.com/trishume/syntect/issues/323

sublimehq packages: Missing mandatory key in YAML file: match https://github.com/trishume/syntect/issues/461

related

https://github.com/microsoft/vscode/blob/7a464d6069a39b7d0e63c3da453d43a53eea7495/extensions/markdown-basics/syntaxes/markdown.tmLanguage.json#L1391

https://github.com/microsoft/vscode-textmate

https://github.com/microsoft/vscode-markdown-tm-grammar