Enum FenError 

pub enum FenError {
    TooShort {
        parts: usize,
    },
    WrongRankCount {
        expected: u8,
        got: usize,
    },
    InvalidSideToMove(String),
    InvalidCastling(String),
    InvalidEpSquare(String),
    ParseInt(String),
}

Errors that can occur when parsing a FEN string.

Variants

TooShort

Fewer than 4 space-separated fields.

Fields

parts: usize

Number of fields actually found.

WrongRankCount

The board section does not contain exactly 8 ranks.

Fields

expected: u8

Expected number of ranks (always 8).

got: usize

Number of ranks found.

InvalidSideToMove(String)

Invalid side-to-move field (expected "w" or "b").

InvalidCastling(String)

Invalid castling rights field.

InvalidEpSquare(String)

Invalid en-passant target square.

ParseInt(String)

Integer parse failure in the move-clock or full-move fields.

Trait Implementations

impl Debug for FenError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for FenError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for FenError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.