CutterGen

Library of Congress Cutter Number Generation Library.

This package follows the specifications presented on the Classification and Shelflisting Manual Instruction Sheet G63.

See demonstration on PHP Sandbox.

Installation

composer require gerardbalaoro/cuttergen

Basic Usage

/**
 * Initialize CutterGen instance, pass default expansion length (optional)
 *  - $length = 0 : no expansion
 *  - $length = -1 : expand all characters
 */
$cutter = new CutterGen\CutterGen(1);

/**
 * Can also set default expansion length using `setLength`
 */
$cutter->setLength(2);

/**
 * Generate cutter number (Prints: S658)
 */
echo $cutter->generate('Smith');

/**
 * Can also pass length (Prints: S65)
 */
echo $cutter->generate('Smith', 1);

Handling Qa - Qt Initials

For initials Qa-Qt, use numbers 2-29

By default, the package assigns values to a character by its order in the English alpabeth, starting at 2. To customize, simple pass a callable object to the setHandlder() method.

$cutter = new CutterGen\CutterGen();

$cutter->setHandler('qa-qt', function($char) {
    if ($char == 'a') {
        return '5';
    }
    ...
});

// Prints: Q55
echo $cutter->generate('Qaldor')

Reference

• Library of Congress Cutter Table