thinkphp/library/think/console/input/Option.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2015 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: yunwuxin <448901948@qq.com>
// +----------------------------------------------------------------------

namespace think\console\input;

class Option
{

    const VALUE_NONE     = 1;
    const VALUE_REQUIRED = 2;
    const VALUE_OPTIONAL = 4;
    const VALUE_IS_ARRAY = 8;

    private $name;
    private $shortcut;
    private $mode;
    private $default;
    private $description;

    /**
     * 构造方法
     * @param string       $name        选项名
     * @param string|array $shortcut    短名称,多个用|隔开或者使用数组
     * @param int          $mode        选项类型(可选类型为 self::VALUE_*)
     * @param string       $description 描述
     * @param mixed        $default     默认值 (类型为 self::VALUE_REQUIRED 或者 self::VALUE_NONE 的时候必须为null)
     * @throws \InvalidArgumentException
     */
    public function __construct($name, $shortcut = null, $mode = null, $description = '', $default = null)
    {
        if (0 === strpos($name, '--')) {
            $name = substr($name, 2);
        }

        if (empty($name)) {
            throw new \InvalidArgumentException('An option name cannot be empty.');
        }

        if (empty($shortcut)) {
            $shortcut = null;
        }

        if (null !== $shortcut) {
            if (is_array($shortcut)) {
                $shortcut = implode('|', $shortcut);
            }
            $shortcuts = preg_split('{(\|)-?}', ltrim($shortcut, '-'));
            $shortcuts = array_filter($shortcuts);
            $shortcut  = implode('|', $shortcuts);

            if (empty($shortcut)) {
                throw new \InvalidArgumentException('An option shortcut cannot be empty.');