S-Expression Parser

A high-performance, zero-copy S-expression parser optimized for compiler use cases. Features fast parsing with minimal memory allocations through borrowed string slices and various performance optimizations.

Features

• Zero-copy parsing: Uses borrowed string slices to avoid unnecessary allocations
• Fast-path optimizations: Optimized number parsing and single-character symbols
• Production error handling: Proper error types instead of panics
• Memory efficient: Pre-allocated vectors and optimized tokenization

Quick Start

use sexpression::{Expression, read, ParseError};

fn main() -> Result<(), ParseError> {
    let source = "(define (factorial n) (if (= n 0) 1 (* n (factorial (- n 1)))))";
    let expr = read(source)?;
    println!("Parsed: {:?}", expr);
    Ok(())
}

Documentation

Run cargo doc --open to view the full documentation.