minor #19773 [Emoji][Twig] Add emojify filter (javiereguiluz)

This PR was squashed before being merged into the 7.1 branch.

Discussion
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[Emoji][Twig] Add `emojify` filter

Fixes #19756.

`@lyrixx` if you can, please review this. Thanks!

Commits
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d25c009 [Emoji][Twig] Add `emojify` filter

Author: javiereguiluz

reference/twig_reference.rst

@@ -645,6 +645,37 @@ serialize
 Accepts any data that can be serialized by the :doc:`Serializer component </serializer>`
 and returns a serialized string in the specified ``format``.
 
+.. _reference-twig-filter-emojify:
+
+emojify
+~~~~~~~
+
+.. versionadded:: 7.1
+
+    The ``emojify`` filter was introduced in Symfony 7.1.
+
+.. code-block:: twig
+
+    {{ text|emojify(catalog = null) }}
+
+``text``
+    **type**: ``string``
+
+``catalog`` *(optional)*
+    **type**: ``string`` | ``null``
+
+    The emoji set used to generate the textual representation (``slack``,
+    ``github``, ``gitlab``, etc.)
+
+It transforms the textual representation of an emoji (e.g. ``:wave:``) into the
+actual emoji (👋):
+
+.. code-block:: twig
+
+    {{ ':+1:'|emojify }}                 {# renders: 👍 #}
+    {{ ':+1:'|emojify('github') }}       {# renders: 👍 #}
+    {{ ':thumbsup:'|emojify('gitlab') }} {# renders: 👍 #}
+
 .. _reference-twig-tags:
 
 Tags

string.rst

@@ -613,6 +613,8 @@ Convert Slack short codes to emojis with the ``slack-emoji`` locale::
     $transliterator->transliterate('Menus with :green_salad: or :falafel:');
     // => 'Menus with 🥗 or 🧆'
 
+.. _string-text-emoji:
+
 Universal Emoji Short Codes Transliteration
 ###########################################
 
@@ -637,6 +639,33 @@ You can convert emojis to short codes with the ``emoji-text`` locale::
     $transliterator->transliterate('Breakfast with 🥝 or 🥛');
     // => 'Breakfast with :kiwifruit: or :milk-glass:
 
+Inverse Emoji Transliteration
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 7.1
+
+    The inverse emoji transliteration was introduced in Symfony 7.1.
+
+Given the textual representation of an emoji, you can reverse it back to get the
+actual emoji thanks to the :ref:`emojify filter <reference-twig-filter-emojify>`:
+
+.. code-block:: twig
+
+    {{ 'I like :kiwi-fruit:'|emojify }} {# renders: I like 🥝 #}
+    {{ 'I like :kiwi:'|emojify }}       {# renders: I like 🥝 #}
+    {{ 'I like :kiwifruit:'|emojify }}  {# renders: I like 🥝 #}
+
+By default, ``emojify`` uses the :ref:`text catalog <string-text-emoji>`, which
+merges the emoji text codes of all services. If you prefer, you can select a
+specific catalog to use:
+
+.. code-block:: twig
+
+    {{ 'I :green-heart: this'|emojify }}                  {# renders: I 💚 this #}
+    {{ ':green_salad: is nice'|emojify('slack') }}        {# renders: 🥗 is nice #}
+    {{ 'My :turtle: has no name yet'|emojify('github') }} {# renders: My 🐢 has no name yet #}
+    {{ ':kiwi: is a great fruit'|emojify('gitlab') }}     {# renders: 🥝 is a great fruit #}
+
 Removing Emojis
 ~~~~~~~~~~~~~~~