diff vendor/pear/console_commandline/Console/CommandLine.php @ 0:1e000243b222

vanilla 1.3.3 distro, I hope
author Charlie Root
date Thu, 04 Jan 2018 15:50:29 -0500
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/pear/console_commandline/Console/CommandLine.php	Thu Jan 04 15:50:29 2018 -0500
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+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * This file is part of the PEAR Console_CommandLine package.
+ *
+ * A full featured package for managing command-line options and arguments 
+ * hightly inspired from python optparse module, it allows the developper to 
+ * easily build complex command line interfaces.
+ *
+ * PHP version 5
+ *
+ * LICENSE: This source file is subject to the MIT license that is available
+ * through the world-wide-web at the following URI:
+ * http://opensource.org/licenses/mit-license.php
+ *
+ * @category  Console 
+ * @package   Console_CommandLine
+ * @author    David JEAN LOUIS <izimobil@gmail.com>
+ * @copyright 2007 David JEAN LOUIS
+ * @license   http://opensource.org/licenses/mit-license.php MIT License 
+ * @version   CVS: $Id$
+ * @link      http://pear.php.net/package/Console_CommandLine
+ * @since     Class available since release 0.1.0
+ * @filesource
+ */
+
+/**
+ * Required unconditionally
+ */
+require_once 'Console/CommandLine/Exception.php';
+require_once 'Console/CommandLine/Outputter/Default.php';
+require_once 'Console/CommandLine/Renderer/Default.php';
+require_once 'Console/CommandLine/MessageProvider/Default.php';
+
+/**
+ * Main class for parsing command line options and arguments.
+ * 
+ * There are three ways to create parsers with this class:
+ * <code>
+ * // direct usage
+ * $parser = new Console_CommandLine();
+ *
+ * // with an xml definition file
+ * $parser = Console_CommandLine::fromXmlFile('path/to/file.xml');
+ *
+ * // with an xml definition string
+ * $validXmlString = '..your xml string...';
+ * $parser = Console_CommandLine::fromXmlString($validXmlString);
+ * </code>
+ *
+ * @category  Console
+ * @package   Console_CommandLine
+ * @author    David JEAN LOUIS <izimobil@gmail.com>
+ * @copyright 2007 David JEAN LOUIS
+ * @license   http://opensource.org/licenses/mit-license.php MIT License 
+ * @version   Release: @package_version@
+ * @link      http://pear.php.net/package/Console_CommandLine
+ * @since     File available since release 0.1.0
+ * @example   docs/examples/ex1.php
+ * @example   docs/examples/ex2.php
+ */
+class Console_CommandLine
+{
+    // Public properties {{{
+
+    /**
+     * Error messages.
+     *
+     * @var array $errors Error messages
+     * @todo move this to Console_CommandLine_MessageProvider
+     */
+    public static $errors = array(
+        'option_bad_name'                    => 'option name must be a valid php variable name (got: {$name})',
+        'argument_bad_name'                  => 'argument name must be a valid php variable name (got: {$name})',
+        'argument_no_default'                => 'only optional arguments can have a default value',
+        'option_long_and_short_name_missing' => 'you must provide at least an option short name or long name for option "{$name}"',
+        'option_bad_short_name'              => 'option "{$name}" short name must be a dash followed by a letter (got: "{$short_name}")',
+        'option_bad_long_name'               => 'option "{$name}" long name must be 2 dashes followed by a word (got: "{$long_name}")',
+        'option_unregistered_action'         => 'unregistered action "{$action}" for option "{$name}".',
+        'option_bad_action'                  => 'invalid action for option "{$name}".',
+        'option_invalid_callback'            => 'you must provide a valid callback for option "{$name}"',
+        'action_class_does_not_exists'       => 'action "{$name}" class "{$class}" not found, make sure that your class is available before calling Console_CommandLine::registerAction()',
+        'invalid_xml_file'                   => 'XML definition file "{$file}" does not exists or is not readable',
+        'invalid_rng_file'                   => 'RNG file "{$file}" does not exists or is not readable'
+    );
+
+    /**
+     * The name of the program, if not given it defaults to argv[0].
+     *
+     * @var string $name Name of your program
+     */
+    public $name;
+
+    /**
+     * A description text that will be displayed in the help message.
+     *
+     * @var string $description Description of your program
+     */
+    public $description = '';
+
+    /**
+     * A string that represents the version of the program, if this property is 
+     * not empty and property add_version_option is not set to false, the
+     * command line parser will add a --version option, that will display the
+     * property content.
+     *
+     * @var    string $version
+     * @access public
+     */
+    public $version = '';
+
+    /**
+     * Boolean that determine if the command line parser should add the help
+     * (-h, --help) option automatically.
+     *
+     * @var bool $add_help_option Whether to add a help option or not
+     */
+    public $add_help_option = true;
+
+    /**
+     * Boolean that determine if the command line parser should add the version
+     * (-v, --version) option automatically.
+     * Note that the version option is also generated only if the version 
+     * property is not empty, it's up to you to provide a version string of 
+     * course.
+     *
+     * @var bool $add_version_option Whether to add a version option or not
+     */
+    public $add_version_option = true;
+
+    /**
+     * Boolean that determine if providing a subcommand is mandatory.
+     *
+     * @var bool $subcommand_required Whether a subcommand is required or not
+     */
+    public $subcommand_required = false;
+
+    /**
+     * The command line parser renderer instance.
+     *
+     * @var    object that implements Console_CommandLine_Renderer interface
+     * @access protected
+     */
+    public $renderer = false;
+
+    /**
+     * The command line parser outputter instance.
+     *
+     * @var Console_CommandLine_Outputter An outputter
+     */
+    public $outputter = false;
+
+    /**
+     * The command line message provider instance.
+     *
+     * @var Console_CommandLine_MessageProvider A message provider instance
+     */
+    public $message_provider = false;
+
+    /**
+     * Boolean that tells the parser to be POSIX compliant, POSIX demands the 
+     * following behavior: the first non-option stops option processing.
+     *
+     * @var bool $force_posix Whether to force posix compliance or not
+     */
+    public $force_posix = false;
+
+    /**
+     * Boolean that tells the parser to set relevant options default values, 
+     * according to the option action.
+     *
+     * @see Console_CommandLine_Option::setDefaults()
+     * @var bool $force_options_defaults Whether to force option default values
+     */
+    public $force_options_defaults = false;
+
+ 
+   /**
+    * Boolean that tells the parser to treat a single - option as an argument
+    * instead of trying to read STDIN.
+    *
+    * @var bool $avoid_reading_stdin Whether to treat - as an argument
+    */
+    public $avoid_reading_stdin = false;
+
+    /**
+     * An array of Console_CommandLine_Option objects.
+     *
+     * @var array $options The options array
+     */
+    public $options = array();
+
+    /**
+     * An array of Console_CommandLine_Argument objects.
+     *
+     * @var array $args The arguments array
+     */
+    public $args = array();
+
+    /**
+     * An array of Console_CommandLine_Command objects (sub commands).
+     *
+     * @var array $commands The commands array
+     */
+    public $commands = array();
+
+    /**
+     * Parent, only relevant in Command objects but left here for interface 
+     * convenience.
+     *
+     * @var Console_CommandLine The parent instance
+     * @todo move Console_CommandLine::parent to Console_CommandLine_Command
+     */
+    public $parent = false;
+
+    /**
+     * Array of valid actions for an option, this array will also store user 
+     * registered actions.
+     *
+     * The array format is:
+     * <pre>
+     * array(
+     *     <ActionName:string> => array(<ActionClass:string>, <builtin:bool>)
+     * )
+     * </pre>
+     *
+     * @var array $actions List of valid actions
+     */
+    public static $actions = array(
+        'StoreTrue'   => array('Console_CommandLine_Action_StoreTrue', true),
+        'StoreFalse'  => array('Console_CommandLine_Action_StoreFalse', true),
+        'StoreString' => array('Console_CommandLine_Action_StoreString', true),
+        'StoreInt'    => array('Console_CommandLine_Action_StoreInt', true),
+        'StoreFloat'  => array('Console_CommandLine_Action_StoreFloat', true),
+        'StoreArray'  => array('Console_CommandLine_Action_StoreArray', true),
+        'Callback'    => array('Console_CommandLine_Action_Callback', true),
+        'Counter'     => array('Console_CommandLine_Action_Counter', true),
+        'Help'        => array('Console_CommandLine_Action_Help', true),
+        'Version'     => array('Console_CommandLine_Action_Version', true),
+        'Password'    => array('Console_CommandLine_Action_Password', true),
+        'List'        => array('Console_CommandLine_Action_List', true),
+    );
+
+    /**
+     * Custom errors messages for this command
+     *
+     * This array is of the form:
+     * <code>
+     * <?php
+     * array(
+     *     $messageName => $messageText,
+     *     $messageName => $messageText,
+     *     ...
+     * );
+     * ?>
+     * </code>
+     *
+     * If specified, these messages override the messages provided by the
+     * default message provider. For example:
+     * <code>
+     * <?php
+     * $messages = array(
+     *     'ARGUMENT_REQUIRED' => 'The argument foo is required.',
+     * );
+     * ?>
+     * </code>
+     *
+     * @var array
+     * @see Console_CommandLine_MessageProvider_Default
+     */
+    public $messages = array();
+
+    // }}}
+    // {{{ Private properties
+
+    /**
+     * Array of options that must be dispatched at the end.
+     *
+     * @var array $_dispatchLater Options to be dispatched
+     */
+    private $_dispatchLater = array();
+
+    private $_lastopt = false;
+    private $_stopflag = false;
+
+    // }}}
+    // __construct() {{{
+
+    /**
+     * Constructor.
+     * Example:
+     *
+     * <code>
+     * $parser = new Console_CommandLine(array(
+     *     'name'               => 'yourprogram', // defaults to argv[0]
+     *     'description'        => 'Description of your program',
+     *     'version'            => '0.0.1', // your program version
+     *     'add_help_option'    => true, // or false to disable --help option
+     *     'add_version_option' => true, // or false to disable --version option
+     *     'force_posix'        => false // or true to force posix compliance
+     * ));
+     * </code>
+     *
+     * @param array $params An optional array of parameters
+     *
+     * @return void
+     */
+    public function __construct(array $params = array()) 
+    {
+        if (isset($params['name'])) {
+            $this->name = $params['name'];
+        } else if (isset($argv) && count($argv) > 0) {
+            $this->name = $argv[0];
+        } else if (isset($_SERVER['argv']) && count($_SERVER['argv']) > 0) {
+            $this->name = $_SERVER['argv'][0];
+        } else if (isset($_SERVER['SCRIPT_NAME'])) {
+            $this->name = basename($_SERVER['SCRIPT_NAME']);
+        }
+        if (isset($params['description'])) {
+            $this->description = $params['description'];
+        }
+        if (isset($params['version'])) {
+            $this->version = $params['version'];
+        }
+        if (isset($params['add_version_option'])) {
+            $this->add_version_option = $params['add_version_option'];
+        }
+        if (isset($params['add_help_option'])) {
+            $this->add_help_option = $params['add_help_option'];
+        }
+        if (isset($params['subcommand_required'])) {
+            $this->subcommand_required = $params['subcommand_required'];
+        }
+        if (isset($params['force_posix'])) {
+            $this->force_posix = $params['force_posix'];
+        } else if (getenv('POSIXLY_CORRECT')) {
+            $this->force_posix = true;
+        }
+        if (isset($params['messages']) && is_array($params['messages'])) {
+            $this->messages = $params['messages'];
+        }
+        // set default instances
+        $this->renderer         = new Console_CommandLine_Renderer_Default($this);
+        $this->outputter        = new Console_CommandLine_Outputter_Default();
+        $this->message_provider = new Console_CommandLine_MessageProvider_Default();
+    }
+
+    // }}}
+    // accept() {{{
+
+    /**
+     * Method to allow Console_CommandLine to accept either:
+     *  + a custom renderer, 
+     *  + a custom outputter,
+     *  + or a custom message provider
+     *
+     * @param mixed $instance The custom instance
+     *
+     * @return void
+     * @throws Console_CommandLine_Exception if wrong argument passed
+     */
+    public function accept($instance) 
+    {
+        if ($instance instanceof Console_CommandLine_Renderer) {
+            if (property_exists($instance, 'parser') && !$instance->parser) {
+                $instance->parser = $this;
+            }
+            $this->renderer = $instance;
+        } else if ($instance instanceof Console_CommandLine_Outputter) {
+            $this->outputter = $instance;
+        } else if ($instance instanceof Console_CommandLine_MessageProvider) {
+            $this->message_provider = $instance;
+        } else {
+            throw Console_CommandLine_Exception::factory(
+                'INVALID_CUSTOM_INSTANCE',
+                array(),
+                $this,
+                $this->messages
+            );
+        }
+    }
+
+    // }}}
+    // fromXmlFile() {{{
+
+    /**
+     * Returns a command line parser instance built from an xml file.
+     *
+     * Example:
+     * <code>
+     * require_once 'Console/CommandLine.php';
+     * $parser = Console_CommandLine::fromXmlFile('path/to/file.xml');
+     * $result = $parser->parse();
+     * </code>
+     *
+     * @param string $file Path to the xml file
+     *
+     * @return Console_CommandLine The parser instance
+     */
+    public static function fromXmlFile($file) 
+    {
+        include_once 'Console/CommandLine/XmlParser.php';
+        return Console_CommandLine_XmlParser::parse($file);
+    }
+
+    // }}}
+    // fromXmlString() {{{
+
+    /**
+     * Returns a command line parser instance built from an xml string.
+     *
+     * Example:
+     * <code>
+     * require_once 'Console/CommandLine.php';
+     * $xmldata = '<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+     * <command>
+     *   <description>Compress files</description>
+     *   <option name="quiet">
+     *     <short_name>-q</short_name>
+     *     <long_name>--quiet</long_name>
+     *     <description>be quiet when run</description>
+     *     <action>StoreTrue/action>
+     *   </option>
+     *   <argument name="files">
+     *     <description>a list of files</description>
+     *     <multiple>true</multiple>
+     *   </argument>
+     * </command>';
+     * $parser = Console_CommandLine::fromXmlString($xmldata);
+     * $result = $parser->parse();
+     * </code>
+     *
+     * @param string $string The xml data
+     *
+     * @return Console_CommandLine The parser instance
+     */
+    public static function fromXmlString($string) 
+    {
+        include_once 'Console/CommandLine/XmlParser.php';
+        return Console_CommandLine_XmlParser::parseString($string);
+    }
+
+    // }}}
+    // addArgument() {{{
+
+    /**
+     * Adds an argument to the command line parser and returns it.
+     *
+     * Adds an argument with the name $name and set its attributes with the
+     * array $params, then return the Console_CommandLine_Argument instance
+     * created.
+     * The method accepts another form: you can directly pass a 
+     * Console_CommandLine_Argument object as the sole argument, this allows
+     * you to contruct the argument separately, in order to reuse it in
+     * different command line parsers or commands for example.
+     *
+     * Example:
+     * <code>
+     * $parser = new Console_CommandLine();
+     * // add an array argument
+     * $parser->addArgument('input_files', array('multiple'=>true));
+     * // add a simple argument
+     * $parser->addArgument('output_file');
+     * $result = $parser->parse();
+     * print_r($result->args['input_files']);
+     * print_r($result->args['output_file']);
+     * // will print:
+     * // array('file1', 'file2')
+     * // 'file3'
+     * // if the command line was:
+     * // myscript.php file1 file2 file3
+     * </code>
+     *
+     * In a terminal, the help will be displayed like this:
+     * <code>
+     * $ myscript.php install -h
+     * Usage: myscript.php <input_files...> <output_file>
+     * </code>
+     *
+     * @param mixed $name   A string containing the argument name or an
+     *                      instance of Console_CommandLine_Argument
+     * @param array $params An array containing the argument attributes
+     *
+     * @return Console_CommandLine_Argument the added argument
+     * @see Console_CommandLine_Argument
+     */
+    public function addArgument($name, $params = array())
+    {
+        if ($name instanceof Console_CommandLine_Argument) {
+            $argument = $name;
+        } else {
+            include_once 'Console/CommandLine/Argument.php';
+            $argument = new Console_CommandLine_Argument($name, $params);
+        }
+        $argument->validate();
+        $this->args[$argument->name] = $argument;
+        return $argument;
+    }
+
+    // }}}
+    // addCommand() {{{
+
+    /**
+     * Adds a sub-command to the command line parser.
+     *
+     * Adds a command with the given $name to the parser and returns the 
+     * Console_CommandLine_Command instance, you can then populate the command
+     * with options, configure it, etc... like you would do for the main parser
+     * because the class Console_CommandLine_Command inherits from
+     * Console_CommandLine.
+     *
+     * An example:
+     * <code>
+     * $parser = new Console_CommandLine();
+     * $install_cmd = $parser->addCommand('install');
+     * $install_cmd->addOption(
+     *     'verbose',
+     *     array(
+     *         'short_name'  => '-v',
+     *         'long_name'   => '--verbose',
+     *         'description' => 'be noisy when installing stuff',
+     *         'action'      => 'StoreTrue'
+     *      )
+     * );
+     * $parser->parse();
+     * </code>
+     * Then in a terminal:
+     * <code>
+     * $ myscript.php install -h
+     * Usage: myscript.php install [options]
+     *
+     * Options:
+     *   -h, --help     display this help message and exit
+     *   -v, --verbose  be noisy when installing stuff
+     *
+     * $ myscript.php install --verbose
+     * Installing whatever...
+     * $
+     * </code>
+     *
+     * @param mixed $name   A string containing the command name or an
+     *                      instance of Console_CommandLine_Command
+     * @param array $params An array containing the command attributes
+     *
+     * @return Console_CommandLine_Command the added subcommand
+     * @see    Console_CommandLine_Command
+     */
+    public function addCommand($name, $params = array())
+    {
+        if ($name instanceof Console_CommandLine_Command) {
+            $command = $name;
+        } else {
+            include_once 'Console/CommandLine/Command.php';
+            $params['name'] = $name;
+            $command        = new Console_CommandLine_Command($params);
+            // some properties must cascade to the child command if not 
+            // passed explicitely. This is done only in this case, because if 
+            // we have a Command object we have no way to determine if theses 
+            // properties have already been set
+            $cascade = array(
+                'add_help_option',
+                'add_version_option',
+                'outputter',
+                'message_provider',
+                'force_posix',
+                'force_options_defaults'
+            );
+            foreach ($cascade as $property) {
+                if (!isset($params[$property])) {
+                    $command->$property = $this->$property;
+                }
+            }
+            if (!isset($params['renderer'])) {
+                $renderer          = clone $this->renderer;
+                $renderer->parser  = $command;
+                $command->renderer = $renderer;
+            }
+        }
+        $command->parent = $this;
+        $this->commands[$command->name] = $command;
+        return $command;
+    }
+
+    // }}}
+    // addOption() {{{
+
+    /**
+     * Adds an option to the command line parser and returns it.
+     *
+     * Adds an option with the name $name and set its attributes with the
+     * array $params, then return the Console_CommandLine_Option instance
+     * created.
+     * The method accepts another form: you can directly pass a 
+     * Console_CommandLine_Option object as the sole argument, this allows
+     * you to contruct the option separately, in order to reuse it in different
+     * command line parsers or commands for example.
+     *
+     * Example:
+     * <code>
+     * $parser = new Console_CommandLine();
+     * $parser->addOption('path', array(
+     *     'short_name'  => '-p',  // a short name
+     *     'long_name'   => '--path', // a long name
+     *     'description' => 'path to the dir', // a description msg
+     *     'action'      => 'StoreString',
+     *     'default'     => '/tmp' // a default value
+     * ));
+     * $parser->parse();
+     * </code>
+     *
+     * In a terminal, the help will be displayed like this:
+     * <code>
+     * $ myscript.php --help
+     * Usage: myscript.php [options]
+     *
+     * Options:
+     *   -h, --help  display this help message and exit
+     *   -p, --path  path to the dir
+     *
+     * </code>
+     *
+     * Various methods to specify an option, these 3 commands are equivalent:
+     * <code>
+     * $ myscript.php --path=some/path
+     * $ myscript.php -p some/path
+     * $ myscript.php -psome/path
+     * </code>
+     *
+     * @param mixed $name   A string containing the option name or an
+     *                      instance of Console_CommandLine_Option
+     * @param array $params An array containing the option attributes
+     *
+     * @return Console_CommandLine_Option The added option
+     * @see    Console_CommandLine_Option
+     */
+    public function addOption($name, $params = array())
+    {
+        include_once 'Console/CommandLine/Option.php';
+        if ($name instanceof Console_CommandLine_Option) {
+            $opt = $name;
+        } else {
+            $opt = new Console_CommandLine_Option($name, $params);
+        }
+        $opt->validate();
+        if ($this->force_options_defaults) {
+            $opt->setDefaults();
+        }
+        $this->options[$opt->name] = $opt;
+        if (!empty($opt->choices) && $opt->add_list_option) {
+            $this->addOption('list_' . $opt->name, array(
+                'long_name'     => '--list-' . $opt->name,
+                'description'   => $this->message_provider->get(
+                    'LIST_OPTION_MESSAGE',
+                    array('name' => $opt->name)
+                ),
+                'action'        => 'List',
+                'action_params' => array('list' => $opt->choices),
+            ));
+        }
+        return $opt;
+    }
+
+    // }}}
+    // displayError() {{{
+
+    /**
+     * Displays an error to the user via stderr and exit with $exitCode if its
+     * value is not equals to false.
+     *
+     * @param string $error    The error message
+     * @param int    $exitCode The exit code number (default: 1). If set to
+     *                         false, the exit() function will not be called
+     *
+     * @return void
+     */
+    public function displayError($error, $exitCode = 1)
+    {
+        $this->outputter->stderr($this->renderer->error($error));
+        if ($exitCode !== false) {
+            exit($exitCode);
+        }
+    }
+
+    // }}}
+    // displayUsage() {{{
+
+    /**
+     * Displays the usage help message to the user via stdout and exit with
+     * $exitCode if its value is not equals to false.
+     *
+     * @param int $exitCode The exit code number (default: 0). If set to
+     *                      false, the exit() function will not be called
+     *
+     * @return void
+     */
+    public function displayUsage($exitCode = 0)
+    {
+        $this->outputter->stdout($this->renderer->usage());
+        if ($exitCode !== false) {
+            exit($exitCode);
+        }
+    }
+
+    // }}}
+    // displayVersion() {{{
+
+    /**
+     * Displays the program version to the user via stdout and exit with
+     * $exitCode if its value is not equals to false.
+     *
+     *
+     * @param int $exitCode The exit code number (default: 0). If set to
+     *                      false, the exit() function will not be called
+     *
+     * @return void
+     */
+    public function displayVersion($exitCode = 0)
+    {
+        $this->outputter->stdout($this->renderer->version());
+        if ($exitCode !== false) {
+            exit($exitCode);
+        }
+    }
+
+    // }}}
+    // findOption() {{{
+
+    /**
+     * Finds the option that matches the given short_name (ex: -v), long_name
+     * (ex: --verbose) or name (ex: verbose).
+     *
+     * @param string $str The option identifier
+     *
+     * @return mixed A Console_CommandLine_Option instance or false
+     */
+    public function findOption($str)
+    {
+        $str = trim($str);
+        if ($str === '') {
+            return false;
+        }
+        $matches = array();
+        foreach ($this->options as $opt) {
+            if ($opt->short_name == $str || $opt->long_name == $str ||
+                $opt->name == $str) {
+                // exact match
+                return $opt;
+            }
+            if (substr($opt->long_name, 0, strlen($str)) === $str) {
+                // abbreviated long option
+                $matches[] = $opt;
+            }
+        }
+        if ($count = count($matches)) {
+            if ($count > 1) {
+                $matches_str = '';
+                $padding     = '';
+                foreach ($matches as $opt) {
+                    $matches_str .= $padding . $opt->long_name;
+                    $padding      = ', ';
+                }
+                throw Console_CommandLine_Exception::factory(
+                    'OPTION_AMBIGUOUS',
+                    array('name' => $str, 'matches' => $matches_str),
+                    $this,
+                    $this->messages
+                );
+            }
+            return $matches[0];
+        }
+        return false;
+    }
+    // }}}
+    // registerAction() {{{
+
+    /**
+     * Registers a custom action for the parser, an example:
+     *
+     * <code>
+     *
+     * // in this example we create a "range" action:
+     * // the user will be able to enter something like:
+     * // $ <program> -r 1,5
+     * // and in the result we will have:
+     * // $result->options['range']: array(1, 5)
+     *
+     * require_once 'Console/CommandLine.php';
+     * require_once 'Console/CommandLine/Action.php';
+     *
+     * class ActionRange extends Console_CommandLine_Action
+     * {
+     *     public function execute($value=false, $params=array())
+     *     {
+     *         $range = explode(',', str_replace(' ', '', $value));
+     *         if (count($range) != 2) {
+     *             throw new Exception(sprintf(
+     *                 'Option "%s" must be 2 integers separated by a comma',
+     *                 $this->option->name
+     *             ));
+     *         }
+     *         $this->setResult($range);
+     *     }
+     * }
+     * // then we can register our action
+     * Console_CommandLine::registerAction('Range', 'ActionRange');
+     * // and now our action is available !
+     * $parser = new Console_CommandLine();
+     * $parser->addOption('range', array(
+     *     'short_name'  => '-r',
+     *     'long_name'   => '--range',
+     *     'action'      => 'Range', // note our custom action
+     *     'description' => 'A range of two integers separated by a comma'
+     * ));
+     * // etc...
+     *
+     * </code>
+     *
+     * @param string $name  The name of the custom action
+     * @param string $class The class name of the custom action
+     *
+     * @return void
+     */
+    public static function registerAction($name, $class) 
+    {
+        if (!isset(self::$actions[$name])) {
+            if (!class_exists($class)) {
+                self::triggerError('action_class_does_not_exists',
+                    E_USER_ERROR,
+                    array('{$name}' => $name, '{$class}' => $class));
+            }
+            self::$actions[$name] = array($class, false);
+        }
+    }
+
+    // }}}
+    // triggerError() {{{
+
+    /**
+     * A wrapper for programming errors triggering.
+     *
+     * @param string $msgId  Identifier of the message
+     * @param int    $level  The php error level
+     * @param array  $params An array of search=>replaces entries
+     *
+     * @return void
+     * @todo remove Console::triggerError() and use exceptions only
+     */
+    public static function triggerError($msgId, $level, $params=array()) 
+    {
+        if (isset(self::$errors[$msgId])) {
+            $msg = str_replace(array_keys($params),
+                array_values($params), self::$errors[$msgId]); 
+            trigger_error($msg, $level);
+        } else {
+            trigger_error('unknown error', $level);
+        }
+    }
+
+    // }}}
+    // parse() {{{
+
+    /**
+     * Parses the command line arguments and returns a
+     * Console_CommandLine_Result instance.
+     *
+     * @param integer $userArgc Number of arguments (optional)
+     * @param array   $userArgv Array containing arguments (optional)
+     *
+     * @return Console_CommandLine_Result The result instance
+     * @throws Exception on user errors
+     */
+    public function parse($userArgc=null, $userArgv=null)
+    {
+        $this->_lastopt  = false;
+        $this->_stopflag = false;
+
+        $this->addBuiltinOptions();
+        if ($userArgc !== null && $userArgv !== null) {
+            $argc = $userArgc;
+            $argv = $userArgv;
+        } else {
+            list($argc, $argv) = $this->getArgcArgv();
+        }
+        // build an empty result
+        include_once 'Console/CommandLine/Result.php';
+        $result = new Console_CommandLine_Result();
+        if (!($this instanceof Console_CommandLine_Command)) {
+            // remove script name if we're not in a subcommand
+            array_shift($argv);
+            $argc--;
+        }
+        // will contain arguments
+        $args = array();
+        foreach ($this->options as $name=>$option) {
+            $result->options[$name] = $option->default;
+        }
+        // parse command line tokens
+        while ($argc--) {
+            $token = array_shift($argv);
+            try {
+                if ($cmd = $this->_getSubCommand($token)) {
+                    $result->command_name = $cmd->name;
+                    $result->command      = $cmd->parse($argc, $argv);
+                    break;
+                } else {
+                    $this->parseToken($token, $result, $args, $argc);
+                }
+            } catch (Exception $exc) {
+                throw $exc;
+            }
+        }
+        // Parse a null token to allow any undespatched actions to be despatched.
+        $this->parseToken(null, $result, $args, 0);
+        // Check if an invalid subcommand was specified. If there are
+        // subcommands and no arguments, but an argument was provided, it is
+        // an invalid subcommand.
+        if (   count($this->commands) > 0
+            && count($this->args) === 0
+            && count($args) > 0
+        ) {
+            throw Console_CommandLine_Exception::factory(
+                'INVALID_SUBCOMMAND',
+                array('command' => $args[0]),
+                $this,
+                $this->messages
+            );
+        }
+        // if subcommand_required is set to true we must check that we have a
+        // subcommand.
+        if (   count($this->commands)
+            && $this->subcommand_required
+            && !$result->command_name
+        ) {
+            throw Console_CommandLine_Exception::factory(
+                'SUBCOMMAND_REQUIRED',
+                array('commands' => implode(array_keys($this->commands), ', ')),
+                $this,
+                $this->messages
+            );
+        }
+        // minimum argument number check
+        $argnum = 0;
+        foreach ($this->args as $name=>$arg) {
+            if (!$arg->optional) {
+                $argnum++;
+            }
+        }
+        if (count($args) < $argnum) {
+            throw Console_CommandLine_Exception::factory(
+                'ARGUMENT_REQUIRED',
+                array('argnum' => $argnum, 'plural' => $argnum>1 ? 's': ''),
+                $this,
+                $this->messages
+            );
+        }
+        // handle arguments
+        $c = count($this->args);
+        foreach ($this->args as $name=>$arg) {
+            $c--;
+            if ($arg->multiple) {
+                $result->args[$name] = $c ? array_splice($args, 0, -$c) : $args;
+            } else {
+                $result->args[$name] = array_shift($args);
+            }
+            if (!$result->args[$name] && $arg->optional && $arg->default) {
+                $result->args[$name] = $arg->default;
+            }
+            // check value is in argument choices
+            if (!empty($this->args[$name]->choices)) {
+                foreach ($result->args[$name] as $value) {
+                    if (!in_array($value, $arg->choices)) {
+                        throw Console_CommandLine_Exception::factory(
+                            'ARGUMENT_VALUE_NOT_VALID',
+                            array(
+                                'name'    => $name,
+                                'choices' => implode('", "', $arg->choices),
+                                'value'   => implode(' ', $result->args[$name]),
+                            ),
+                            $this,
+                            $arg->messages
+                        );
+                    }
+                }
+            }
+        }
+        // dispatch deferred options
+        foreach ($this->_dispatchLater as $optArray) {
+            $optArray[0]->dispatchAction($optArray[1], $optArray[2], $this);
+        }
+        return $result;
+    }
+
+    // }}}
+    // parseToken() {{{
+
+    /**
+     * Parses the command line token and modifies *by reference* the $options
+     * and $args arrays.
+     *
+     * @param string $token  The command line token to parse
+     * @param object $result The Console_CommandLine_Result instance
+     * @param array  &$args  The argv array
+     * @param int    $argc   Number of lasting args
+     *
+     * @return void
+     * @access protected
+     * @throws Exception on user errors
+     */
+    protected function parseToken($token, $result, &$args, $argc)
+    {
+        $last  = $argc === 0;
+        if (!$this->_stopflag && $this->_lastopt) {
+            if (strlen($token) > ($this->avoid_reading_stdin ? 1 : 0) &&
+                substr($token, 0, 1) == '-') {
+                if ($this->_lastopt->argument_optional) {
+                    $this->_dispatchAction($this->_lastopt, '', $result);
+                    if ($this->_lastopt->action != 'StoreArray') {
+                        $this->_lastopt = false;
+                    }
+                } else if (isset($result->options[$this->_lastopt->name])) {
+                    // case of an option that expect a list of args
+                    $this->_lastopt = false;
+                } else {
+                    throw Console_CommandLine_Exception::factory(
+                        'OPTION_VALUE_REQUIRED',
+                        array('name' => $this->_lastopt->name),
+                        $this,
+                        $this->messages
+                    );
+                }
+            } else {
+                // when a StoreArray option is positioned last, the behavior
+                // is to consider that if there's already an element in the
+                // array, and the commandline expects one or more args, we
+                // leave last tokens to arguments
+                if ($this->_lastopt->action == 'StoreArray'
+                    && !empty($result->options[$this->_lastopt->name])
+                    && count($this->args) > ($argc + count($args))
+                ) {
+                    if (!is_null($token)) {
+                        $args[] = $token;
+                    }
+                    return;
+                }
+                if (!is_null($token) || $this->_lastopt->action == 'Password') {
+                    $this->_dispatchAction($this->_lastopt, $token, $result);
+                }
+                if ($this->_lastopt->action != 'StoreArray') {
+                    $this->_lastopt = false;
+                }
+                return;
+            }
+        }
+        if (!$this->_stopflag && substr($token, 0, 2) == '--') {
+            // a long option
+            $optkv = explode('=', $token, 2);
+            if (trim($optkv[0]) == '--') {
+                // the special argument "--" forces in all cases the end of 
+                // option scanning.
+                $this->_stopflag = true;
+                return;
+            }
+            $opt = $this->findOption($optkv[0]);
+            if (!$opt) {
+                throw Console_CommandLine_Exception::factory(
+                    'OPTION_UNKNOWN',
+                    array('name' => $optkv[0]),
+                    $this,
+                    $this->messages
+                );
+            }
+            $value = isset($optkv[1]) ? $optkv[1] : false;
+            if (!$opt->expectsArgument() && $value !== false) {
+                throw Console_CommandLine_Exception::factory(
+                    'OPTION_VALUE_UNEXPECTED',
+                    array('name' => $opt->name, 'value' => $value),
+                    $this,
+                    $this->messages
+                );
+            }
+            if ($opt->expectsArgument() && $value === false) {
+                // maybe the long option argument is separated by a space, if 
+                // this is the case it will be the next arg
+                if ($last && !$opt->argument_optional) {
+                    throw Console_CommandLine_Exception::factory(
+                        'OPTION_VALUE_REQUIRED',
+                        array('name' => $opt->name),
+                        $this,
+                        $this->messages
+                    );
+                }
+                // we will have a value next time
+                $this->_lastopt = $opt;
+                return;
+            }
+            if ($opt->action == 'StoreArray') {
+                $this->_lastopt = $opt;
+            }
+            $this->_dispatchAction($opt, $value, $result);
+        } else if (!$this->_stopflag &&
+                   strlen($token) > ($this->avoid_reading_stdin ? 1 : 0) &&
+                   substr($token, 0, 1) == '-') {
+            // a short option
+            $optname = substr($token, 0, 2);
+            if ($optname == '-' && !$this->avoid_reading_stdin) {
+                // special case of "-": try to read stdin
+                $args[] = file_get_contents('php://stdin');
+                return;
+            }
+            $opt = $this->findOption($optname);
+            if (!$opt) {
+                throw Console_CommandLine_Exception::factory(
+                    'OPTION_UNKNOWN',
+                    array('name' => $optname),
+                    $this,
+                    $this->messages
+                );
+            }
+            // parse other options or set the value
+            // in short: handle -f<value> and -f <value>
+            $next = substr($token, 2, 1);
+            // check if we must wait for a value
+            if (!$next) {
+                if ($opt->expectsArgument()) {
+                    if ($last && !$opt->argument_optional) {
+                        throw Console_CommandLine_Exception::factory(
+                            'OPTION_VALUE_REQUIRED',
+                            array('name' => $opt->name),
+                            $this,
+                            $this->messages
+                        );
+                    }
+                    // we will have a value next time
+                    $this->_lastopt = $opt;
+                    return;
+                }
+                $value = false;
+            } else {
+                if (!$opt->expectsArgument()) { 
+                    if ($nextopt = $this->findOption('-' . $next)) {
+                        $this->_dispatchAction($opt, false, $result);
+                        $this->parseToken('-' . substr($token, 2), $result,
+                            $args, $last);
+                        return;
+                    } else {
+                        throw Console_CommandLine_Exception::factory(
+                            'OPTION_UNKNOWN',
+                            array('name' => $next),
+                            $this,
+                            $this->messages
+                        );
+                    }
+                }
+                if ($opt->action == 'StoreArray') {
+                    $this->_lastopt = $opt;
+                }
+                $value = substr($token, 2);
+            }
+            $this->_dispatchAction($opt, $value, $result);
+        } else {
+            // We have an argument.
+            // if we are in POSIX compliant mode, we must set the stop flag to 
+            // true in order to stop option parsing.
+            if (!$this->_stopflag && $this->force_posix) {
+                $this->_stopflag = true;
+            }
+            if (!is_null($token)) {
+                $args[] = $token;
+            }
+        }
+    }
+
+    // }}}
+    // addBuiltinOptions() {{{
+
+    /**
+     * Adds the builtin "Help" and "Version" options if needed.
+     *
+     * @return void
+     */
+    public function addBuiltinOptions()
+    {
+        if ($this->add_help_option) {
+            $helpOptionParams = array(
+                'long_name'   => '--help',
+                'description' => 'show this help message and exit',
+                'action'      => 'Help'   
+            );
+            if (!($option = $this->findOption('-h')) || $option->action == 'Help') {
+                // short name is available, take it
+                $helpOptionParams['short_name'] = '-h';
+            }
+            $this->addOption('help', $helpOptionParams);
+        }
+        if ($this->add_version_option && !empty($this->version)) {
+            $versionOptionParams = array(
+                'long_name'   => '--version',
+                'description' => 'show the program version and exit',
+                'action'      => 'Version'   
+            );
+            if (!$this->findOption('-v')) {
+                // short name is available, take it
+                $versionOptionParams['short_name'] = '-v';
+            }
+            $this->addOption('version', $versionOptionParams);
+        }
+    } 
+
+    // }}}
+    // getArgcArgv() {{{
+
+    /**
+     * Tries to return an array containing argc and argv, or trigger an error
+     * if it fails to get them.
+     *
+     * @return array The argc/argv array
+     * @throws Console_CommandLine_Exception 
+     */
+    protected function getArgcArgv()
+    {
+        if (php_sapi_name() != 'cli') {
+            // we have a web request
+            $argv = array($this->name);
+            if (isset($_REQUEST)) {
+                foreach ($_REQUEST as $key => $value) {
+                    if (!is_array($value)) {
+                        $value = array($value);
+                    }
+                    $opt = $this->findOption($key);
+                    if ($opt instanceof Console_CommandLine_Option) {
+                        // match a configured option
+                        $argv[] = $opt->short_name ? 
+                            $opt->short_name : $opt->long_name;
+                        foreach ($value as $v) {
+                            if ($opt->expectsArgument()) {
+                                $argv[] = isset($_REQUEST[$key]) ? urldecode($v) : $v;
+                            } else if ($v == '0' || $v == 'false') {
+                                array_pop($argv);
+                            }
+                        }
+                    } else if (isset($this->args[$key])) {
+                        // match a configured argument
+                        foreach ($value as $v) {
+                            $argv[] = isset($_REQUEST[$key]) ? urldecode($v) : $v;
+                        }
+                    }
+                }
+            }
+            return array(count($argv), $argv);
+        }
+        if (isset($argc) && isset($argv)) {
+            // case of register_argv_argc = 1
+            return array($argc, $argv);
+        }
+        if (isset($_SERVER['argc']) && isset($_SERVER['argv'])) {
+            return array($_SERVER['argc'], $_SERVER['argv']);
+        }
+        return array(0, array());
+    }
+
+    // }}}
+    // _dispatchAction() {{{
+
+    /**
+     * Dispatches the given option or store the option to dispatch it later.
+     *
+     * @param Console_CommandLine_Option $option The option instance
+     * @param string                     $token  Command line token to parse
+     * @param Console_CommandLine_Result $result The result instance
+     *
+     * @return void
+     */
+    private function _dispatchAction($option, $token, $result)
+    {
+        if ($option->action == 'Password') {
+            $this->_dispatchLater[] = array($option, $token, $result);
+        } else {
+            $option->dispatchAction($token, $result, $this);
+        }
+    }
+    // }}}
+    // _getSubCommand() {{{
+
+    /**
+     * Tries to return the subcommand that matches the given token or returns
+     * false if no subcommand was found.
+     *
+     * @param string $token Current command line token
+     *
+     * @return mixed An instance of Console_CommandLine_Command or false
+     */
+    private function _getSubCommand($token)
+    {
+        foreach ($this->commands as $cmd) {
+            if ($cmd->name == $token || in_array($token, $cmd->aliases)) {
+                return $cmd;
+            }
+        }
+        return false;
+    }
+
+    // }}}
+}