{ // i18next-scanner options
    input: [
        'src/app/**/*.{ts,html,htm}',
        '!**/node_modules/**',
    ],
    output: './tmp',
    options: {
        debug: true,
        removeUnusedKeys: true,
        func: {
            list: ['i18nService.translate', 'mi18nService.translate'],
            extensions: ['.ts', '.html', '.htm']
        },
        attr: {
            list: ['[attx]', '[qwe]', '[mkey]', '[akey]'],
            extensions: ['.html', '.htm']
        },
        trans: false,
        lngs: ['fr', 'nl', 'en'],
        ns: [
            'translation',
        ],
        defaultLng: 'fr',
        defaultNs: 'translation',
        defaultValue: '__STRING_NOT_TRANSLATED__',
        resource: {
            loadPath: 'tmp/i18n/translations.{{lng}}.json',
            savePath: 'tmp/i18n/translations.{{lng}}.json',
            jsonIndent: 2,
            lineEnding: '\n'
        },
        nsSeparator: false, // namespace separator
        keySeparator: false, // key separator
        interpolation: {
            prefix: '{{',
            suffix: '}}'
        },
    },
    transform: function customTransform(file, enc, done) {
        "use strict";

        console.log(`Parsing file: file=${JSON.stringify(file.relative)}`);

        const parser = this.parser;
        const content = fs.readFileSync(file.path, enc);
        let count = 0;

        parser.parseAttrFromString(content, (key, options) => {
          console.log(`Found attribute value to be translated translation: ${key}`);
            key = key.replace(/^'/, '').replace(/'$/, '');
            console.log(`Key after trimming single quotes: ${key}`);
            parser.set(key, Object.assign({}, options, {
                nsSeparator: false,
                keySeparator: false
            }));

            // parser.set(key, 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
              count;
        });

        if (count > 0) {
            console.log(`i18next-scanner: count=${chalk.cyan(count)}, file=${chalk.yellow(JSON.stringify(file.relative))}`);
        }
        done();
    },
}