You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
1.5 KiB
53 lines
1.5 KiB
/*:nodoc:* |
|
* class ActionAppend |
|
* |
|
* This action stores a list, and appends each argument value to the list. |
|
* This is useful to allow an option to be specified multiple times. |
|
* This class inherided from [[Action]] |
|
* |
|
**/ |
|
|
|
'use strict'; |
|
|
|
var util = require('util'); |
|
|
|
var Action = require('../action'); |
|
|
|
// Constants |
|
var c = require('../const'); |
|
|
|
/*:nodoc:* |
|
* new ActionAppend(options) |
|
* - options (object): options hash see [[Action.new]] |
|
* |
|
* Note: options.nargs should be optional for constants |
|
* and more then zero for other |
|
**/ |
|
var ActionAppend = module.exports = function ActionAppend(options) { |
|
options = options || {}; |
|
if (this.nargs <= 0) { |
|
throw new Error('nargs for append actions must be > 0; if arg ' + |
|
'strings are not supplying the value to append, ' + |
|
'the append const action may be more appropriate'); |
|
} |
|
if (!!this.constant && this.nargs !== c.OPTIONAL) { |
|
throw new Error('nargs must be OPTIONAL to supply const'); |
|
} |
|
Action.call(this, options); |
|
}; |
|
util.inherits(ActionAppend, Action); |
|
|
|
/*:nodoc:* |
|
* ActionAppend#call(parser, namespace, values, optionString) -> Void |
|
* - parser (ArgumentParser): current parser |
|
* - namespace (Namespace): namespace for output data |
|
* - values (Array): parsed values |
|
* - optionString (Array): input option string(not parsed) |
|
* |
|
* Call the action. Save result in namespace object |
|
**/ |
|
ActionAppend.prototype.call = function (parser, namespace, values) { |
|
var items = (namespace[this.dest] || []).slice(); |
|
items.push(values); |
|
namespace.set(this.dest, items); |
|
};
|
|
|