@slippi/slippi-js/dist/common/utils/fullwidth.cjs

Official Project Slippi Javascript SDK

'use strict';

var map = require('lodash/map');

function toHalfwidth(str) {
    // Converts a fullwidth character to halfwidth
    const convertChar = (charCode) => {
        /**
         * Standard full width encodings
         * https://en.wikipedia.org/wiki/Halfwidth_and_Fullwidth_Forms_(Unicode_block)
         */
        if (charCode > 0xff00 && charCode < 0xff5f) {
            return 0x0020 + (charCode - 0xff00);
        }
        // space:
        if (charCode === 0x3000) {
            return 0x0020;
        }
        /**
         * Exceptions found in Melee/Japanese keyboards
         */
        // single quote: '
        if (charCode === 0x2019) {
            return 0x0027;
        }
        // double quote: "
        if (charCode === 0x201d) {
            return 0x0022;
        }
        return charCode;
    };
    const ret = map(str, (char) => convertChar(char.charCodeAt(0)));
    return String.fromCharCode(...ret);
}

exports.toHalfwidth = toHalfwidth;