added the CLI component

Author: fabpot

src/Symfony/Components/CLI/Application.php

@@ -0,0 +1,134 @@
+<?php
+
+namespace Symfony\Components\CLI\Input;
+
+/*
+ * This file is part of the symfony framework.
+ *
+ * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+/**
+ * Represents a command line argument.
+ *
+ * @package symfony
+ * @subpackage cli
+ * @author Fabien Potencier <fabien.potencier@symfony-project.com>
+ */
+class Argument
+{
+ const REQUIRED = 1;
+ const OPTIONAL = 2;
+ const IS_ARRAY = 4;
+
+ protected $name;
+ protected $mode;
+ protected $default;
+ protected $description;
+
+ /**
+ * Constructor.
+ *
+ * @param string $name The argument name
+ * @param integer $mode The argument mode: self::REQUIRED or self::OPTIONAL
+ * @param string $description A description text
+ * @param mixed $default The default value (for self::OPTIONAL mode only)
+ */
+ public function __construct($name, $mode = null, $description = '', $default = null)
+ {
+ if (null === $mode)
+ {
+ $mode = self::OPTIONAL;
+ }
+ else if (is_string($mode) || $mode > 7)
+ {
+ throw new \InvalidArgumentException(sprintf('Argument mode "%s" is not valid.', $mode));
+ }
+
+ $this->name = $name;
+ $this->mode = $mode;
+ $this->description = $description;
+
+ $this->setDefault($default);
+ }
+
+ /**
+ * Returns the argument name.
+ *
+ * @return string The argument name
+ */
+ public function getName()
+ {
+ return $this->name;
+ }
+
+ /**
+ * Returns true if the argument is required.
+ *
+ * @return Boolean true if parameter mode is self::REQUIRED, false otherwise
+ */
+ public function isRequired()
+ {
+ return self::REQUIRED === (self::REQUIRED & $this->mode);
+ }
+
+ /**
+ * Returns true if the argument can take multiple values.
+ *
+ * @return Boolean true if mode is self::IS_ARRAY, false otherwise
+ */
+ public function isArray()
+ {
+ return self::IS_ARRAY === (self::IS_ARRAY & $this->mode);
+ }
+
+ /**
+ * Sets the default value.
+ *
+ * @param mixed $default The default value
+ */
+ public function setDefault($default = null)
+ {
+ if (self::REQUIRED === $this->mode && null !== $default)
+ {
+ throw new \LogicException('Cannot set a default value except for Parameter::OPTIONAL mode.');
+ }
+
+ if ($this->isArray())
+ {
+ if (null === $default)
+ {
+ $default = array();
+ }
+ else if (!is_array($default))
+ {
+ throw new \LogicException('A default value for an array argument must be an array.');
+ }
+ }
+
+ $this->default = $default;
+ }
+
+ /**
+ * Returns the default value.
+ *
+ * @return mixed The default value
+ */
+ public function getDefault()
+ {
+ return $this->default;
+ }
+
+ /**
+ * Returns the description text.
+ *
+ * @return string The description text
+ */
+ public function getDescription()
+ {
+ return $this->description;
+ }
+}