purr 0.9.0

Primitives for reading and writing the SMILES language in Rust.
Documentation 
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use std::fmt;

use super::Element;

/// Eligible symbols for aromatic bracket atoms.
#[derive(Debug,PartialEq)]
pub enum BracketAromatic {
    B, C, N, O, S, P, Se, As
}

impl Into<Element> for &BracketAromatic {
    fn into(self) -> Element {
        match self {
            BracketAromatic::As => Element::As,
            BracketAromatic::B => Element::B,
            BracketAromatic::C => Element::C,
            BracketAromatic::N => Element::N,
            BracketAromatic::O => Element::O,
            BracketAromatic::P => Element::P,
            BracketAromatic::S => Element::S,
            BracketAromatic::Se => Element::Se
        }
    }
}

impl fmt::Display for BracketAromatic {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}", match self {
            BracketAromatic::B => "b",
            BracketAromatic::C => "c",
            BracketAromatic::N => "n",
            BracketAromatic::O => "o",
            BracketAromatic::S => "s",
            BracketAromatic::P => "p",
            BracketAromatic::Se => "se",
            BracketAromatic::As => "as"
        })
    }
}