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<?php
/**
* File containing the ezcConsoleInputHelpGenerator interface.
*
* @package ConsoleTools
* @version 1.6.1
* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
* @filesource
*/
/**
* Interface for help generators used in ezcConsoleInput.
*
* An instance of a class implementing this interface is used in {@link
* ezcConsoleInput} to generate the help information.
*
* @package ConsoleTools
* @version 1.6.1
*
* @access private
* @TODO Verify interface and make it public to replace the validation in
* {@link ezcConsoleInput}.
*/
interface ezcConsoleInputHelpGenerator
{
/**
* Creates a new help generator.
*
* Creates a new help generator for the given $input.
*
* @param ezcConsoleInput $input
*/
public function __construct( ezcConsoleInput $input );
/**
* Generates help information as a multidimensional array.
*
* This method generates a tabular view on the help information of a
* program. The returned array has the following structure:
*
* <code>
* <?php
* array(
* 0 => array(
* 0 => '<option short/long name>',
* 1 => '<option help, depending on the $long parameter>'
* ),
* 1 => array(
* 0 => '<option short name> / <option long name>',
* 1 => '<option help, depending on the $long parameter>'
* ),
* // ...
* );
* ?>
* </code>
*
* Each row of the array represents the help information for a single option.
* The first cell of a row contains the option name (maybe short, long or
* both), the second cell contains the help text of the option.
*
* The returned array is used by {@link ezcConsoleInput} for different
* purposes.
* For example, the user can retrieve it raw through the
* {@link ezcConsoleInput::getHelp()} method, he can generate a help
* {@link ezcConsoleTable} through {@link ezcConsoleInput::getHelpTable()}
* are can generate a printable help text through {@link
* ezcConsoleInput::getHelpText()}.
*
* The parameter $long defines if the long or short help text of the
* options should be used in the second cell of the returned array. The
* $optionsFilter parameter is used to restrict the generated help to a certain
* sub-set of options. It consists of an array of short or long names of
* the options to include.
*
* @param bool $long
* @param array(string) $optionsFilter
* @return array(array(string))
*/
public function generateUngroupedOptionHelp( $long = false, array $optionsFilter = null );
/**
* Generates help information as a multidimensional array, grouped in categories.
*
* This method behaves similar to {@link generateUngroupedOptionHelp()}. In
* contrast to the latter one, this method returns an array with 1
* dimension more, grouping options into categories. The $groups parameter
* defines the categories to generate. Each category may contain an
* arbitrary number of options, options might occur in different
* categories.
*
* The returned array has the follorwing format:
*
* <code>
* <?php
* array(
* '<category name>' => array(
* 0 => array(
* 0 => '<option short/long name>',
* 1 => '<option help, depending on the $long parameter>'
* ),
* 1 => array(
* 0 => '<option short name> / <option long name>',
* 1 => '<option help, depending on the $long parameter>'
* ),
* // ...
* ),
* '<category name>' => array(
* // ...
* ),
* // ...
* );
* ?>
* </code>
*
* The $long parameter, as in {@link generateUngroupedOptionHelp()}
* determines if the options short or long help is to be used. The
* $params array can in addition be used to determine if a parameter
* is displayed at all. If $optionsFilter is submitted and is not null,
* only options listed in it will be shown in the help at all.
*
* @param array(string=>array(string)) $groups
* @param bool $long
* @param array(string) $params
* @return array(string=>array(array(string)))
*/
public function generateGroupedOptionHelp( array $groups, $long = false, array $optionsFilter = null );
/**
* Generates help information as a multi-dimensonal array for the given $argumentDefinition.
*
* This method generates a tabular help information for the given
* $argumentDefinition in the following format:
*
* <code>
* <?php
* array(
* 0 => array(
* 0 => '<argument synopsis>',
* 1 => '<argument help text>'
* ),
* 1 => array(
* 0 => '<argument synopsis>',
* 1 => '<argument help text>'
* ),
* // ...
* )
* ?>
* </code>
*
* The $long parameter defines if the long of short help text should be
* used.
*
* @param bool $long
* @return array(array(string))
*/
public function generateArgumentHelp( $long = false );
/**
* Generates a command line synopsis for the options and arguments.
*
* This method generates a synopsis string that lists the options and
* parameters available, indicating their usage.
*
* @return string
*/
public function generateSynopsis( array $optionFilter = null );
}
?>
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