colorprint/shim/browser/msg/format_msg.js

Print ansi-colored message to stdout/stderr.

/**
 * Format message.
 * @memberof module:colorprint/lib
 * @function formatMsg
 * @param {...string} msg - Messages to format.
 * @returns {string}  - Formatted message.
 */
"use strict";
/** @lends formatMsg */

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

function formatMsg(msg) {
  var s = this;
  msg = Array.prototype.slice.call(arguments, 0).map(function (msg) {
    if ((0, _typeof2["default"])(msg) === 'object') {
      try {
        return JSON.stringify(msg, null, 2);
      } catch (e) {// Do nothing.
      }
    }

    return msg;
  }).filter(function (msg) {
    return !!msg;
  }).map(function (msg) {
    return String(msg);
  });

  if (!msg.length) {
    return '';
  }

  var formatted = msg.shift().replace(/%(.)/g, function ($0, $1) {
    switch ($1) {
      case 's':
        return String(msg.shift());

      case 'd':
        return parseInt(msg.shift());

      case 'f':
        return parseFloat(msg.shift());

      default:
        return $0;
    }
  });
  return [formatted].concat(msg).join(' ');
}

module.exports = formatMsg;
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