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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
==========
The API present in Inflector 1.x is still available, but will be deprecated in a future release and dropped for 3.0.
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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