209 lines
5.8 KiB
PHP
209 lines
5.8 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Console\Input;
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use Symfony\Component\Console\Exception\InvalidArgumentException;
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use Symfony\Component\Console\Exception\LogicException;
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/**
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* Represents a command line option.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class InputOption
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{
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const VALUE_NONE = 1;
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const VALUE_REQUIRED = 2;
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const VALUE_OPTIONAL = 4;
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const VALUE_IS_ARRAY = 8;
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private $name;
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private $shortcut;
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private $mode;
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private $default;
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private $description;
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/**
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* @param string $name The option name
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* @param string|array $shortcut The shortcuts, can be null, a string of shortcuts delimited by | or an array of shortcuts
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* @param int $mode The option mode: One of the VALUE_* constants
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* @param string $description A description text
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* @param mixed $default The default value (must be null for self::VALUE_NONE)
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*
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* @throws InvalidArgumentException If option mode is invalid or incompatible
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*/
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public function __construct($name, $shortcut = null, $mode = null, $description = '', $default = null)
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{
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if (0 === strpos($name, '--')) {
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$name = substr($name, 2);
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}
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if (empty($name)) {
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throw new InvalidArgumentException('An option name cannot be empty.');
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}
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if (empty($shortcut)) {
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$shortcut = null;
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}
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if (null !== $shortcut) {
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if (is_array($shortcut)) {
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$shortcut = implode('|', $shortcut);
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}
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$shortcuts = preg_split('{(\|)-?}', ltrim($shortcut, '-'));
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$shortcuts = array_filter($shortcuts);
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$shortcut = implode('|', $shortcuts);
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if (empty($shortcut)) {
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throw new InvalidArgumentException('An option shortcut cannot be empty.');
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}
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}
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if (null === $mode) {
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$mode = self::VALUE_NONE;
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} elseif (!is_int($mode) || $mode > 15 || $mode < 1) {
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throw new InvalidArgumentException(sprintf('Option mode "%s" is not valid.', $mode));
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}
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$this->name = $name;
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$this->shortcut = $shortcut;
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$this->mode = $mode;
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$this->description = $description;
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if ($this->isArray() && !$this->acceptValue()) {
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throw new InvalidArgumentException('Impossible to have an option mode VALUE_IS_ARRAY if the option does not accept a value.');
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}
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$this->setDefault($default);
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}
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/**
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* Returns the option shortcut.
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*
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* @return string The shortcut
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*/
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public function getShortcut()
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{
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return $this->shortcut;
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}
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/**
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* Returns the option name.
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*
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* @return string The name
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*/
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public function getName()
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{
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return $this->name;
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}
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/**
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* Returns true if the option accepts a value.
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*
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* @return bool true if value mode is not self::VALUE_NONE, false otherwise
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*/
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public function acceptValue()
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{
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return $this->isValueRequired() || $this->isValueOptional();
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}
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/**
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* Returns true if the option requires a value.
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*
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* @return bool true if value mode is self::VALUE_REQUIRED, false otherwise
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*/
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public function isValueRequired()
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{
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return self::VALUE_REQUIRED === (self::VALUE_REQUIRED & $this->mode);
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}
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/**
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* Returns true if the option takes an optional value.
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*
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* @return bool true if value mode is self::VALUE_OPTIONAL, false otherwise
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*/
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public function isValueOptional()
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{
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return self::VALUE_OPTIONAL === (self::VALUE_OPTIONAL & $this->mode);
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}
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/**
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* Returns true if the option can take multiple values.
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*
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* @return bool true if mode is self::VALUE_IS_ARRAY, false otherwise
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*/
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public function isArray()
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{
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return self::VALUE_IS_ARRAY === (self::VALUE_IS_ARRAY & $this->mode);
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}
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/**
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* Sets the default value.
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*
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* @param mixed $default The default value
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*
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* @throws LogicException When incorrect default value is given
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*/
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public function setDefault($default = null)
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{
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if (self::VALUE_NONE === (self::VALUE_NONE & $this->mode) && null !== $default) {
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throw new LogicException('Cannot set a default value when using InputOption::VALUE_NONE mode.');
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}
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if ($this->isArray()) {
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if (null === $default) {
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$default = array();
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} elseif (!is_array($default)) {
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throw new LogicException('A default value for an array option must be an array.');
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}
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}
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$this->default = $this->acceptValue() ? $default : false;
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}
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/**
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* Returns the default value.
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*
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* @return mixed The default value
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*/
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public function getDefault()
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{
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return $this->default;
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}
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/**
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* Returns the description text.
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*
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* @return string The description text
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*/
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public function getDescription()
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{
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return $this->description;
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}
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/**
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* Checks whether the given option equals this one.
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*
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* @return bool
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*/
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public function equals(InputOption $option)
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{
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return $option->getName() === $this->getName()
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&& $option->getShortcut() === $this->getShortcut()
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&& $option->getDefault() === $this->getDefault()
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&& $option->isArray() === $this->isArray()
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&& $option->isValueRequired() === $this->isValueRequired()
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&& $option->isValueOptional() === $this->isValueOptional()
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;
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}
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}
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