spectral/common/padder.js

Spectral is a Node-based HTTP/HTTPS proxy server and inspector for the commandline

/*
 * Copyright (c) 2015 Dickson Tam
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 */

var string = require('string-etc').wrap(['pad']);

function Padder(padding) {
  this.padding = padding || 12;
}

Padder.prototype.pad = function(str) {
 return string(str).pad(this.padding);
}

Padder.prototype.adjustPadding = function(spaces) {
  var oldpad = this.padding;
  this.padding = Math.max(0, oldpad + spaces)
  return oldpad;
}

Padder.prototype.setPadding = function(spaces) {
  var oldpad = this.padding;
  this.padding = Math.max(0, spaces)
  return oldpad;
}

module.exports = new Padder();