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App-Rad-1.05_01
River stage two • 16 direct dependents • 26 total dependents
8 ++
/ App::Rad::Shell

NAME

App::Rad::Shell - shell-like execution of App::Rad programs

VERSION

Version 0.01

SYNOPSIS

With this extension you can run your App::Rad programs as an interactive command shell

    use App::Rad;
    App::Rad->shell();   # instead of App::Rad->run();

and now your App::Rad programs will run like a shell:

    [user@host]$ ./myapp.pl
    myapp> help
    
    Available Commands:
        help    show syntax and available commands
        quit    exits the shell

    myapp>

You can also control the shell's behavior and appearance:

    use App::Rad;
    App::Rad->shell( {
        prompt     => 'cmd: ',
        autocomp   => 1,
        abbrev     => 1,
        ignorecase => 0,
        history    => 1, # or 'path/to/histfile.txt'
    });

DESCRIPTION

This is an internal module for App::Rad and should not be used separately. Please refer to App::Rad for further documentation.

INTERNAL METHODS

load

Loads the module into App::Rad.

shell

Runs the shell environment. This method may receive a hash reference containing one or more of the options below:

prompt

Sets the shell prompt string. Default is the program name, followed by a '>' and a blank space. For example, if your program is called 'myapp.pl', the default shell prompt will be 'myapp> '.

autocomp

Enables (1) or disables (0) command autocompletion. When enabled, the user can press the TAB key after typing part of a command name and the shell will try to complete the string with the full command name. If there is any ambiguity (i.e., the string can be expanded into more than one command), the shell will not autocomplete it, but if the user presses the TAB key twice it will instead display a list of all possible commands. Default is enabled.

abbrev

Enables (1) or disables (0) command abbreviation. When enabled, the user can type just enough of the command name so its uniquely expandable (e.g. typing 'q' instead of 'quit' or 'h' instead of 'help'). If the typed string is still ambiguous, a 'command not found' message will be displayed. Default is enabled.

ignorecase

When enabled (1), commands can be typed without worrying about uppercase or lowercase. Default is disabled (0).

history

Enables (1) or disables (0) command history. When enabled, the user can press the UP key to see previously typed commands.

Instead of '1', you may also pass the full path to a file that will then keep the history between sessions. If the file does not exist it will be created. If App::Rad cannot access the file path (or if no path is given), history will be kept only for the current session. Default is enabled (1).

DEPENDENCIES

* App::Rad

AUTHOR

Breno G. de Oliveira, <garu at cpan.org>, with several contributions from Fernano Correa de Oliveira, <fco at cpan.org>

LICENSE AND COPYRIGHT

Copyright 2008 Breno G. de Oliveira <garu at cpan.org>. All rights reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.