Add FEN side to move parsing

This commit is contained in:
Bruno BELANYI 2022-07-27 23:40:15 +02:00
parent bd662fdd27
commit 3c2a5a412e

View file

@ -1,3 +1,5 @@
use crate::board::Color;
/// A trait to mark items that can be converted from a FEN input. /// A trait to mark items that can be converted from a FEN input.
pub trait FromFen: Sized { pub trait FromFen: Sized {
type Err; type Err;
@ -22,3 +24,17 @@ impl std::fmt::Display for FenError {
} }
impl std::error::Error for FenError {} impl std::error::Error for FenError {}
/// Convert a side to move segment of a FEN string to a [Color].
impl FromFen for Color {
type Err = FenError;
fn from_fen(s: &str) -> Result<Self, Self::Err> {
let res = match s {
"w" => Color::White,
"b" => Color::Black,
_ => return Err(FenError::InvalidFen),
};
Ok(res)
}
}