fentastic/dist/esm/parseActiveColor.js

Validate and parse Forsyth-Edwards Notation (FEN) used to describe a chess game board position.

import { ParseError } from './ParseError.js';
const fieldName = 'Active color';
export const validateActiveColor = (field) => {
    try {
        if (field.tokens.length !== 1) {
            throw new ParseError(fieldName, field.tokens.length, field.tokens[0].index, '1', 'field length to be', 'count');
        }
        if (field.value !== 'w' && field.value !== 'b') {
            throw new ParseError(fieldName, field.value, field.tokens[0].index, 'w|b');
        }
    }
    catch (e) {
        if (e instanceof ParseError) {
            field.error = e;
        }
        else {
            throw e;
        }
    }
    return field;
};
// TODO: This seems unnecessary. Can't I just use the original w or b?
export const parseActiveColor = (field) => {
    return field.value === 'w' ? 'white' : 'black';
};