hapi-rs 0.21.0

Rust bindings to Houdini Engine API
Documentation 
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#[allow(unused)]
macro_rules! cstr {
    ($($bytes:tt)*) => {
        CStr::from_bytes_with_nul($($bytes)*).expect("CStr with null")
    };
}

pub(crate) fn path_to_cstring(
    path: impl AsRef<std::path::Path>,
) -> crate::Result<std::ffi::CString> {
    let s = path.as_ref().as_os_str().to_string_lossy().to_string();
    Ok(std::ffi::CString::new(s)?)
}

/// Join a sequence of paths into a single String
pub fn join_paths<I>(files: I) -> String
where
    I: IntoIterator,
    I::Item: AsRef<str>,
{
    const SEP: char = if cfg!(windows) { ';' } else { ':' };
    let mut buf = String::new();
    let mut iter = files.into_iter().peekable();
    while let Some(n) = iter.next() {
        buf.push_str(n.as_ref());
        if iter.peek().is_some() {
            buf.push(SEP);
        }
    }
    buf
}

/// Generates a random ascii a-z sequence of specified length
pub fn random_string(len: usize) -> String {
    use std::collections::hash_map::RandomState;
    use std::hash::{BuildHasher, Hasher};

    let mut seed = RandomState::new().build_hasher().finish();
    let next = || {
        seed = seed.wrapping_mul(1103515245).wrapping_add(12345);
        ((seed % 26) + 97) as u8 as char
    };
    std::iter::repeat_with(next).take(len).collect()
}