Add FEN side to move parsing
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16
src/fen.rs
16
src/fen.rs
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@ -1,3 +1,5 @@
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use crate::board::Color;
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/// A trait to mark items that can be converted from a FEN input.
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/// A trait to mark items that can be converted from a FEN input.
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pub trait FromFen: Sized {
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pub trait FromFen: Sized {
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type Err;
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type Err;
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@ -22,3 +24,17 @@ impl std::fmt::Display for FenError {
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}
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}
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impl std::error::Error for FenError {}
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impl std::error::Error for FenError {}
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/// Convert a side to move segment of a FEN string to a [Color].
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impl FromFen for Color {
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type Err = FenError;
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fn from_fen(s: &str) -> Result<Self, Self::Err> {
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let res = match s {
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"w" => Color::White,
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"b" => Color::Black,
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_ => return Err(FenError::InvalidFen),
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};
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Ok(res)
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}
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}
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