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Introduction
============

The Doctrine Inflector has methods for inflecting text. The features include pluralization,
singularization, converting between camelCase and under_score and capitalizing
words.

Installation
============

You can install the Inflector with composer:

.. code-block:: console

    $ composer require doctrine/inflector

Usage
=====

Using the inflector is easy, you can create a new ``Doctrine\Inflector\Inflector`` instance by using
the ``Doctrine\Inflector\InflectorFactory`` class:

.. code-block:: php

    use Doctrine\Inflector\InflectorFactory;

    $inflector = InflectorFactory::create()->build();

By default it will create an English inflector. If you want to use another language, just pass the language
you want to create an inflector for to the ``createForLanguage()`` method:

.. code-block:: php

    use Doctrine\Inflector\InflectorFactory;
    use Doctrine\Inflector\Language;

    $inflector = InflectorFactory::createForLanguage(Language::SPANISH)->build();

The supported languages are as follows:

- ``Language::ENGLISH``
- ``Language::FRENCH``
- ``Language::NORWEGIAN_BOKMAL``
- ``Language::PORTUGUESE``
- ``Language::SPANISH``
- ``Language::TURKISH``

If you want to manually construct the inflector instead of using a factory, you can do so like this:

.. code-block:: php

    use Doctrine\Inflector\CachedWordInflector;
    use Doctrine\Inflector\RulesetInflector;
    use Doctrine\Inflector\Rules\English;

    $inflector = new Inflector(
        new CachedWordInflector(new RulesetInflector(
            English\Rules::getSingularRuleset()
        )),
        new CachedWordInflector(new RulesetInflector(
            English\Rules::getPluralRuleset()
        ))
    );

Adding Languages
----------------

If you are interested in adding support for your language, take a look at the other languages defined in the
``Doctrine\Inflector\Rules`` namespace and the tests located in ``Doctrine\Tests\Inflector\Rules``. You can copy
one of the languages and update the rules for your language.

Once you have done this, send a pull request to the ``doctrine/inflector`` repository with the additions.

Custom Setup
============

If you want to setup custom singular and plural rules, you can configure these in the factory:

.. code-block:: php

    use Doctrine\Inflector\InflectorFactory;
    use Doctrine\Inflector\Rules\Pattern;
    use Doctrine\Inflector\Rules\Patterns;
    use Doctrine\Inflector\Rules\Ruleset;
    use Doctrine\Inflector\Rules\Substitution;
    use Doctrine\Inflector\Rules\Substitutions;
    use Doctrine\Inflector\Rules\Transformation;
    use Doctrine\Inflector\Rules\Transformations;
    use Doctrine\Inflector\Rules\Word;

    $inflector = InflectorFactory::create()
        ->withSingularRules(
            new Ruleset(
                new Transformations(
                    new Transformation(new Pattern('/^(bil)er$/i'), '\1'),
                    new Transformation(new Pattern('/^(inflec|contribu)tors$/i'), '\1ta')
                ),
                new Patterns(new Pattern('singulars')),
                new Substitutions(new Substitution(new Word('spins'), new Word('spinor')))
            )
        )
        ->withPluralRules(
            new Ruleset(
                new Transformations(
                    new Transformation(new Pattern('^(bil)er$'), '\1'),
                    new Transformation(new Pattern('^(inflec|contribu)tors$'), '\1ta')
                ),
                new Patterns(new Pattern('noflect'), new Pattern('abtuse')),
                new Substitutions(
                    new Substitution(new Word('amaze'), new Word('amazable')),
                    new Substitution(new Word('phone'), new Word('phonezes'))
                )
            )
        )
        ->build();

No operation inflector
----------------------

The ``Doctrine\Inflector\NoopWordInflector`` may be used to configure an inflector that doesn't perform any operation for
pluralization and/or singularization. If will simply return the input as output.

This is an implementation of the `Null Object design pattern <https://sourcemaking.com/design_patterns/null_object>`_.

.. code-block:: php

    use Doctrine\Inflector\Inflector;
    use Doctrine\Inflector\NoopWordInflector;

    $inflector = new Inflector(new NoopWordInflector(), new NoopWordInflector());

Tableize
========

Converts ``ModelName`` to ``model_name``:

.. code-block:: php

    echo $inflector->tableize('ModelName'); // model_name

Classify
========

Converts ``model_name`` to ``ModelName``:

.. code-block:: php

    echo $inflector->classify('model_name'); // ModelName

Camelize
========

This method uses `Classify`_ and then converts the first character to lowercase:

.. code-block:: php

    echo $inflector->camelize('model_name'); // modelName

Capitalize
==========

Takes a string and capitalizes all of the words, like PHP's built-in
``ucwords`` function. This extends that behavior, however, by allowing the
word delimiters to be configured, rather than only separating on
whitespace.

Here is an example:

.. code-block:: php

    $string = 'top-o-the-morning to all_of_you!';

    echo $inflector->capitalize($string); // Top-O-The-Morning To All_of_you!

    echo $inflector->capitalize($string, '-_ '); // Top-O-The-Morning To All_Of_You!

Pluralize
=========

Returns a word in plural form.

.. code-block:: php

    echo $inflector->pluralize('browser'); // browsers

Singularize
===========

Returns a word in singular form.

.. code-block:: php

    echo $inflector->singularize('browsers'); // browser

Urlize
======

Generate a URL friendly string from a string of text:

.. code-block:: php

    echo $inflector->urlize('My first blog post'); // my-first-blog-post

Unaccent
========

You can unaccent a string of text using the ``unaccent()`` method:

.. code-block:: php

    echo $inflector->unaccent('año'); // ano

Legacy API
==========

As of 1.4.0, the API present in Inflector 1.x has been marked as deprecated. In the 2.x release series,
the legacy API has been dropped completely.
Support for languages other than English is available in the 2.0 API only.

Acknowledgements
================

The language rules in this library have been adapted from several different sources, including but not limited to:

- `Ruby On Rails Inflector <http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html>`_
- `ICanBoogie Inflector <https://github.com/ICanBoogie/Inflector>`_
- `CakePHP Inflector <https://book.cakephp.org/3.0/en/core-libraries/inflector.html>`_
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