Telecss (WIP)

CSS tokenizer, parser, transformer, written in Rust.

This project is mainly based on the following specs:

• CSS Syntax Module Level 3 document.
• Syntax and basic data types document.
• CSS Values and Units Module Level 3
• Selectors Level 4

Benchmark

Benchmarks on each commit: https://telecss.github.io/telecss/dev/bench/

This benchmark is based on parsing/tokenizing the crates/telecss/examples/normalizecss/normalize.css file, and the time-consuming of parsing includes the time-consuming of tokenizing:

• Pure Parsing Time = Parsing Time - Tokenizing Time

TODO

Current Focus

• parsing selectors

Schedule

• Make tokenizer available.
• Make parser available.
• Benchmarks & CI (https://github.com/benchmark-action/github-action-benchmark)
• Make transformer available.
• Make generator available.
• Playground (with WASM)
• Allows writing plugins using Nodejs
• Generate code frame for diagnostics when errors occur.
• Docs

lib.rs:

A simpler and faster CSS parser.

Usages

use tele_tokenizer::Tokenizer;
use tele_parser::Parser;

// Create a tokenizer
let mut tokenizer: Tokenizer = r".foo { color: red; }".into();
// Tokenize based on the given raw string,
let tokens = tokenizer.tokenize().unwrap();
// Create a parser from a sequence of tokens
let parser = Parser::from(tokens);
// parsing it
let ast = parser.parse();