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libchm

Tiny Rust wrapper around libchm for reading CHM archives with safe-ish helpers.

Status

Minimal API: open a file, enumerate entries, read a file, and inspect ChmUnitInfo.
Bundles and builds upstream chmlib during build.rs (downloads chmlib-0.40 from jedrea.com).
Tested only on Windows and Linux x64, treat as experimental.

Installation

cargo ad libchm

Usage

use libchm::{ChmHandle, CHM_ENUMERATE_ALL, Result, unit_info_path};

fn main() -> Result<()> {
	let mut chm = ChmHandle::open("docs.chm")?;
	chm.enumerate(CHM_ENUMERATE_ALL, |ui| {
		println!("{}", unit_info_path(ui));
		true // keep going
	})?;
	let bytes = chm.read_file("/index.html")?;
	println!("index size: {}", bytes.len());
	Ok(())
}

Building

Requires a C toolchain.
Build script downloads and compiles chmlib-0.40 automatically (no system install needed).
No network? Pre-download the tarball and point Cargo to a cached source via CARGO_NET_OFFLINE or a mirror.

License