n3gb-rs 0.1.2

A Rust implementation of a hierarchical hex-based spatial indexing system based on the OSGB National Grid.
Documentation 
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#[derive(Debug, PartialEq)]
pub enum N3gbError {
    InvalidIdentifierLength,
    InvalidChecksum,
    UnsupportedVersion(u8),
    InvalidZoomLevel(u8),
    InvalidDimension(String),
    Base64DecodeError,
    ProjectionError(String),
    IoError(String),
}

impl std::fmt::Display for N3gbError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            N3gbError::InvalidIdentifierLength => write!(f, "Invalid identifier length"),
            N3gbError::InvalidChecksum => write!(f, "Invalid checksum"),
            N3gbError::UnsupportedVersion(v) => write!(f, "Unsupported version: {}", v),
            N3gbError::InvalidZoomLevel(z) => write!(f, "Invalid zoom level: {}", z),
            N3gbError::InvalidDimension(msg) => write!(f, "Invalid dimension: {}", msg),
            N3gbError::Base64DecodeError => write!(f, "Base64 decode error"),
            N3gbError::ProjectionError(msg) => write!(f, "Projection error: {}", msg),
            N3gbError::IoError(msg) => write!(f, "IO error: {}", msg),
        }
    }
}

impl std::error::Error for N3gbError {}