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47 lines
1.1 KiB
47 lines
1.1 KiB
/*:nodoc:* |
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* class ActionHelp |
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* |
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* Support action for printing help |
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* This class inherided from [[Action]] |
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**/ |
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'use strict'; |
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var util = require('util'); |
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var Action = require('../action'); |
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// Constants |
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var c = require('../const'); |
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/*:nodoc:* |
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* new ActionHelp(options) |
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* - options (object): options hash see [[Action.new]] |
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* |
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**/ |
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var ActionHelp = module.exports = function ActionHelp(options) { |
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options = options || {}; |
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if (options.defaultValue !== null) { |
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options.defaultValue = options.defaultValue; |
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} else { |
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options.defaultValue = c.SUPPRESS; |
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} |
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options.dest = (options.dest !== null ? options.dest : c.SUPPRESS); |
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options.nargs = 0; |
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Action.call(this, options); |
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}; |
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util.inherits(ActionHelp, Action); |
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/*:nodoc:* |
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* ActionHelp#call(parser, namespace, values, optionString) |
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* - parser (ArgumentParser): current parser |
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* - namespace (Namespace): namespace for output data |
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* - values (Array): parsed values |
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* - optionString (Array): input option string(not parsed) |
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* |
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* Print help and exit |
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**/ |
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ActionHelp.prototype.call = function (parser) { |
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parser.printHelp(); |
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parser.exit(); |
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};
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