@woosh/dream-tools-localization/src/parse_localization_XLS_to_JSON.js

Localization tooling for DREAM engine

import XLSX from 'xlsx';

/**
 * Convert Excel spreadsheet to individual JSON files
 * designed to work in conjunction with Localization package of DREAM engine
 * @param {Buffer} file
 * @param {number} [worksheet_index]
 * @returns {{json:Object, name:string }[]} name is the name of locale, taken from first row of the XLS
 */
export function parse_localization_XLS_to_JSON({ file, worksheet_index = 0 }) {
    /* Call XLSX */
    const workbook = XLSX.read(file, { type: "buffer" });

    const sheet = workbook.Sheets[workbook.SheetNames[worksheet_index]];

    const sheet_json = XLSX.utils.sheet_to_json(sheet, { raw: false, header: 1 });

    const headerRow = sheet_json[0];

    const languages = headerRow.slice(1);

    const rowCount = sheet_json.length;

    const result = [];

    for (let i = 0; i < languages.length; i++) {
        const language = languages[i];

        //generate a key-value file
        var json = {};

        for (let k = 1; k < rowCount; k++) {
            const row = sheet_json[k];

            const key = row[0];
            const value = row[i + 1];

            if (value === undefined) {
                //no value
                continue;
            }


            //replace special characters
            const formattedValue = value.replace(/\&\#([a-fA-F0-9]+)\;/gi, function (match, code) {
                return String.fromCharCode(code);
            });

            if (json.hasOwnProperty(key)) {

                if (json[key] !== formattedValue) {
                    //re-definition
                    console.error(`duplicate key definition:'${key}', old value='${json[key]}', new value='${value}', keeping old value`);
                }

                continue;
            }

            json[key] = formattedValue;
        }

        result.push({
            name: language,
            json: json
        });

    }

    return result;
}