/ 
Term-Choose-Util-0.061
River stage one • 3 direct dependents • 3 total dependents
/ Term::Choose::Util

NAME

Term::Choose::Util - CLI related functions.

VERSION

Version 0.061

SYNOPSIS

See "SUBROUTINES".

DESCRIPTION

This module provides some CLI related functions required by App::DBBrowser, App::YTDL and Term::TablePrint.

EXPORT

Nothing by default.

SUBROUTINES

Values in brackets are default values.

Unknown option names are ignored.

Options available for all functions:

  • clear_screen

    If enabled, the screen is cleared before the output.

    Values: [0],1.

  • info

    A string placed on top of of the output.

  • prompt

    A string placed on top of the available choices.

  • mouse

    See the option mouse in Term::Choose

    Values: [0],1,2,3,4.

choose_a_dir

$chosen_directory = choose_a_dir( { layout => 1, ... } )

With choose_a_dir the user can browse through the directory tree (as far as the granted rights permit it) and choose a directory which is returned.

To move around in the directory tree:

- select a directory and press Return to enter in the selected directory.

- choose the "up"-menu-entry (" .. ") to move upwards.

To return the current working-directory as the chosen directory choose " OK ".

The "back"-menu-entry (" << ") causes choose_a_dir to return nothing.

As an argument it can be passed a reference to a hash. With this hash the user can set the different options:

  • decoded

    If enabled, the directory name is returned decoded with locale_fs form Encode::Locale.

  • dir

    Set the starting point directory. Defaults to the home directory or the current working directory if the home directory cannot be found.

  • enchanted

    If set to 1, the default cursor position is on the "up" menu entry. If the directory name remains the same after an user input, the default cursor position changes to "back".

    If set to 0, the default cursor position is on the "back" menu entry.

    Values: 0,[1].

  • justify

    Elements in columns are left justified if set to 0, right justified if set to 1 and centered if set to 2.

    Values: [0],1,2.

  • layout

    See the option layout in Term::Choose

    Values: 0,[1],2,3.

  • order

    If set to 1, the items are ordered vertically else they are ordered horizontally.

    This option has no meaning if layout is set to 3.

    Values: 0,[1].

  • show_hidden

    If enabled, hidden directories are added to the available directories.

    Values: 0,[1].

choose_a_file

$chosen_file = choose_a_file( { layout => 1, ... } )

Browse the directory tree the same way as described for choose_a_dir. Select ">F" to get the files of the current directory. To return the chosen file select OK .

The options are passed as a reference to a hash. See "choose_a_dir" for the different options

choose_dirs

$chosen_directories = choose_dirs( { layout => 1, ... } )

choose_dirs is similar to choose_a_dir but it is possible to return multiple directories.

Different to choose_a_dir:

" ++ " adds the current directory to the list of chosen directories.

To return the chosen list of directories (as an array reference) select the "confirm"-menu-entry " OK ".

The "back"-menu-entry ( " << " ) removes the last added directory. If the list of chosen directories is empty, " << " causes choose_dirs to return nothing.

choose_dirs uses the same option as choose_a_dir

choose_a_number

$new = choose_a_number( 5, { name => 'Testnumber ' }  );

This function lets you choose/compose a number (unsigned integer) which is returned.

The fist argument - "digits" - is an integer and determines the range of the available numbers. For example setting the first argument to 6 would offer a range from 0 to 999999.

The second and optional argument is a reference to a hash with these keys (options):

  • name

    The value of name is put in front of the composed number in the info-output.

    Default: "> ";

  • thsd_sep

    Sets the thousands separator.

    Default: comma (,).

choose_a_subset

$subset = choose_a_subset( \@available_items, { name => 'new> ' } )

choose_a_subset lets you choose a subset from a list.

As a first argument it is required a reference to an array which provides the available list.

The optional second argument is a hash reference. The following options are available:

  • index

    If true, the index positions in the available list of the made choices is returned.

  • justify

    Elements in columns are left justified if set to 0, right justified if set to 1 and centered if set to 2.

    Values: [0],1,2.

  • layout

    See the option layout in Term::Choose.

    Values: 0,1,2,[3].

  • name

    The value of name is a string. It is placed in front of the chosen-subset-info-output.

  • order

    If set to 1, the items are ordered vertically else they are ordered horizontally.

    This option has no meaning if layout is set to 3.

    Values: 0,[1].

  • prefix

    prefix expects as its value a string. This string is put in front of the elements of the available list before printing. The chosen elements are returned without this prefix.

    The default value is " " if the layout is 3 else the default is the empty string ("").

settings_menu

$menu = [
    [ 'enable_logging', "- Enable logging", [ 'NO', 'YES' ]   ],
    [ 'case_sensitive', "- Case sensitive", [ 'NO', 'YES' ]   ],
    [ 'attempts',       "- Attempts"      , [ '1', '2', '3' ] ]
];

$config = {
    'enable_logging' => 1,
    'case_sensitive' => 1,
    'attempts'       => 2
};

settings_menu( $menu, $config );

The first argument is a reference to an array of arrays. These arrays have three elements:

  • the name of the option

  • the prompt string

  • an array reference with the available values of the option.

The second argument is a hash reference:

  • the keys are the option names

  • the values (0 if not defined) are the indexes of the current value of the respective key/option.

With the optional third argument can be passed the options.

When settings_menu is called, it displays for each array entry a row with the prompt string and the current value. It is possible to scroll through the rows. If a row is selected, the set and displayed value changes to the next. If the end of the list of the values is reached, it begins from the beginning of the list.

settings_menu returns true if changes were made else false.

REQUIREMENTS

Perl version

Requires Perl version 5.8.3 or greater.

Encoding layer

Ensure the encoding layer for STDOUT, STDERR and STDIN are set to the correct value.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc Term::TablePrint

AUTHOR

Matthäus Kiem <cuer2s@gmail.com>

CREDITS

Thanks to the Perl-Community.de and the people form stackoverflow for the help.

LICENSE AND COPYRIGHT

Copyright 2014-2018 Matthäus Kiem.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For details, see the full text of the licenses in the file LICENSE.