'use strict';

var repeat = require('repeat-string');

module.exports = strong;

/* Stringify a `strong`.
 *
 * The marker used is configurable by `strong`, which
 * defaults to an asterisk (`'*'`) but also accepts an
 * underscore (`'_'`):
 *
 *     __foo__
 */
function strong(node) {
  var marker = repeat(this.options.strong, 2);
  return marker + this.all(node).join('') + marker;
}