gcode-nom 0.7.0

Visualization tool for inspecting a g-code file.
Documentation 
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use nom::error::ErrorKind;
use nom::number::streaming::le_u32;

use nom::IResult;
use nom::Parser;
use nom::combinator::map_res;
use nom::error::Error;

// First 32 bits of valid bgcode file.
static HEADER: u32 = 0x4544_4347;

// Shorthand to catch the file preamble
pub(super) fn preamble(input: &[u8]) -> IResult<&[u8], u32> {
    map_res(le_u32, |code| {
        if code == HEADER {
            log::info!("found binary GCODE header 0x{code:X}");
            Ok(HEADER)
        } else {
            log::error!("Discarding bad preamble failing ");
            Err(Error::new(input, ErrorKind::Alt))
        }
    })
    .parse(input)
}