count.js (1036B)
1 /*:nodoc:* 2 * class ActionCount 3 * 4 * This counts the number of times a keyword argument occurs. 5 * For example, this is useful for increasing verbosity levels 6 * 7 * This class inherided from [[Action]] 8 * 9 **/ 10 'use strict'; 11 12 var util = require('util'); 13 14 var Action = require('../action'); 15 16 /*:nodoc:* 17 * new ActionCount(options) 18 * - options (object): options hash see [[Action.new]] 19 * 20 **/ 21 var ActionCount = module.exports = function ActionCount(options) { 22 options = options || {}; 23 options.nargs = 0; 24 25 Action.call(this, options); 26 }; 27 util.inherits(ActionCount, Action); 28 29 /*:nodoc:* 30 * ActionCount#call(parser, namespace, values, optionString) -> Void 31 * - parser (ArgumentParser): current parser 32 * - namespace (Namespace): namespace for output data 33 * - values (Array): parsed values 34 * - optionString (Array): input option string(not parsed) 35 * 36 * Call the action. Save result in namespace object 37 **/ 38 ActionCount.prototype.call = function (parser, namespace) { 39 namespace.set(this.dest, (namespace[this.dest] || 0) + 1); 40 };