Function bones_framework::prelude::piccolo::io::skip_prefix

pub fn skip_prefix<R>(r: &mut R) -> Result<(), Error>where
    R: BufRead,

Takes an R: BufRead and:

• skips the leading UTF-8 BOM if there is one
• skips the unix shebang if there is one (if the first character is a ‘#’, skips everything up until but not including the first ‘\n’)

This mimics the initial behavior of luaL_loadfile(x). In order to correctly detect and skip the BOM and unix shebang, the internal buffer of the BufRead must be >= 3 bytes.