source: node_modules/indent-string/index.js@ 81bc7da

'use strict';

module.exports = (string, count = 1, options) => {
        options = {
                indent: ' ',
                includeEmptyLines: false,
                ...options
        };

        if (typeof string !== 'string') {
                throw new TypeError(
                        `Expected \`input\` to be a \`string\`, got \`${typeof string}\``
                );
        }

        if (typeof count !== 'number') {
                throw new TypeError(
                        `Expected \`count\` to be a \`number\`, got \`${typeof count}\``
                );
        }

        if (typeof options.indent !== 'string') {
                throw new TypeError(
                        `Expected \`options.indent\` to be a \`string\`, got \`${typeof options.indent}\``
                );
        }

        if (count === 0) {
                return string;
        }

        const regex = options.includeEmptyLines ? /^/gm : /^(?!\s*$)/gm;

        return string.replace(regex, options.indent.repeat(count));
};