text: 'use strict';
  
  var isString = require('../../utils/string').isString;
  var format = require('../../utils/string').format;
  
  function factory (type, config, load, typed) {
    /**
     * Interpolate values into a string template.
     *
     * Syntax:
     *
     *     math.print(template, values)
     *     math.print(template, values, precision)
     *     math.print(template, values, options)
     *
     * Example usage:
     *
     *     // the following outputs: 'Lucy is 5 years old'
     *     math.print('Lucy is $age years old', {age: 5});
     *
     *     // the following outputs: 'The value of pi is 3.141592654'
     *     math.print('The value of pi is $pi', {pi: math.pi}, 10);
     *
     *     // the following outputs: 'hello Mary! The date is 2013-03-23'
     *     math.print('Hello $user.name! The date is $date', {
     *       user: {
     *         name: 'Mary',
     *       },
     *       date: new Date(2013, 2, 23).toISOString().substring(0, 10)
     *     });
     *
     * See also:
     *
     *     format
     *
     * @param {string} template     A string containing variable placeholders.
     * @param {Object} values       An object containing variables which will
     *                              be filled in in the template.
     * @param {number | Object} [options]  Formatting options,
     *                              or the number of digits to format numbers.
     *                              See function math.format for a description
     *                              of all options.
     * @return {string} Interpolated string
     */
    var print = typed ('print', {
      'string, Object': _print,
      'string, Object, number | Object': _print
    });
  
    print.toTex = undefined; // use default template
  
    return print;
  }
  
  /**
   * Interpolate values into a string template.
   * @param {string} template
   * @param {Object} values
   * @param {number | Object} [options]
   * @returns {string} Interpolated string
   * @private
   */
  function _print(template, values, options) {
    return template.replace(/\$([\w\.]+)/g, function (original, key) {
          var keys = key.split('.');
          var value = values[keys.shift()];
          while (keys.length && value !== undefined) {
            var k = keys.shift();
            value = k ? value[k] : value + '.';
          }
  
          if (value !== undefined) {
            if (!isString(value)) {
              return format(value, options);
            }
            else {
              return value;
            }
          }
  
          return original;
        }
    );
  }
  
  exports.name = 'print';
  exports.factory = factory;
  