dem 0.2.3

GoldSrc demo parser and writer library
Documentation 
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use nom::{
    bytes::complete::{tag, take, take_until},
    combinator::{cut, fail, peek},
    error::context,
    multi::count,
    number::complete::le_f32,
    sequence::terminated,
    IResult,
};

// nom helpers
pub type Result<'a, T> = IResult<&'a [u8], T>;

pub fn null_string(i: &[u8]) -> Result<&[u8]> {
    let (i, string) = peek(terminated(take_until("\x00"), tag("\x00")))(i)?;
    take(string.len() + 1)(i)
}

pub fn take_point_float(i: &[u8]) -> Result<Vec<f32>> {
    count(le_f32, 3)(i)
}

pub fn nom_fail<T>(s: impl AsRef<str> + Into<String>) -> Result<'static, T> {
    // bullshit
    let leak = s.into().leak();
    context(leak, cut(fail))(leak.as_bytes())
}