Function webc::is_webc

pub fn is_webc(reader: &[u8]) -> bool

Check if the provided item looks like a WEBC file.

This function is a quick check to make sure the provided source has the WEBC magic a version number, and will not do any expensive parsing or validation.

assert!(webc::is_webc(b"\0webc002"));

This is just a specialised version of detect().