use thiserror::Error;
#[derive(Debug, Error)]
pub enum MhchemError {
#[error("mhchem: {0}")]
Msg(String),
#[error("extra close brace or missing open brace")]
ExtraClose,
}
impl MhchemError {
pub fn msg(s: impl Into<String>) -> Self {
MhchemError::Msg(s.into())
}
}
pub type MhchemResult<T> = Result<T, MhchemError>;