diff --git a/composer.json b/composer.json
index ef0cb6a6..99fecac5 100755
--- a/composer.json
+++ b/composer.json
@@ -88,6 +88,7 @@
         "victorjonsson/markdowndocs": "^1.3.8"
     },
     "config": {
+        "platform-check": false,
         "allow-plugins": {
             "pestphp/pest-plugin": true,
             "dealerdirect/phpcodesniffer-composer-installer": true
diff --git a/src/flextype/core/Entries/Entries.php b/src/flextype/core/Entries/Entries.php
index dbe3cae7..c44e45e8 100755
--- a/src/flextype/core/Entries/Entries.php
+++ b/src/flextype/core/Entries/Entries.php
@@ -80,6 +80,7 @@ class Entries
 
         $this->setRegistry($registry);
         $this->setOptions($options);
+        $this->initExpressions(registry()->get('flextype.settings.entries.expressions'));
         $this->initDirectives(registry()->get('flextype.settings.entries.directives'));
         $this->initMacros(registry()->get('flextype.settings.entries.macros'));
         $this->loadCollectionsEvents();
@@ -145,6 +146,38 @@ class Entries
         } 
     }
 
+    /**
+     * Init Expressions
+     * 
+     * @param array $expressions Expressions to init.
+     * 
+     * @return void
+     */
+    public function initExpressions(array $expressions): void
+    {
+        if (count($expressions) <= 0) {
+            return;
+        }
+
+        foreach ($expressions as $expression) {
+            if (! isset($expression['enabled'])) {
+                continue;
+            }
+
+            if (! $expression['enabled']) {
+                continue;
+            }
+
+            if (! strings($expression['class'])->endsWith('Expression')) {
+                continue;
+            }
+
+            if (class_exists($expression['class'])) {
+                expression()->registerProvider(new $expression['class']());
+            }
+        }
+    }
+
     /** 
      * Load events for current collection.
      *
diff --git a/src/flextype/core/Entries/Expressions/ActionsExpression.php b/src/flextype/core/Entries/Expressions/ActionsExpression.php
new file mode 100644
index 00000000..ac7c4d12
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/ActionsExpression.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class ActionsExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('actions', fn() => 'actions()', fn($arguments) => actions())
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/CollectionExpression.php b/src/flextype/core/Entries/Expressions/CollectionExpression.php
new file mode 100644
index 00000000..5e4f2b31
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/CollectionExpression.php
@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class CollectionExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('collection', fn($items = null) => 'collection($items)', fn($arguments, $items = null) => collection($items)),
+            new ExpressionFunction('collectionFromJson', fn(string $input, bool $assoc = true, int $depth = 512, int $flags = 0) => 'collectionFromJson($input, $assoc, $depth, $flags)', fn($arguments, string $input, bool $assoc = true, int $depth = 512, int $flags = 0) => collectionFromJson($input, $assoc, $depth, $flags)),
+            new ExpressionFunction('collectionFromString', fn(string $string, string $separator) => 'collectionFromString($string, $separator)', fn($arguments, string $string, string $separator) => collectionFromString($string, $separator)),
+            new ExpressionFunction('collectionWithRange', fn($low, $high, int $step = 1) => 'collection($low, $high, $step)', fn($arguments, $low, $high, int $step = 1) => collectionWithRange($low, $high, $step)),
+            new ExpressionFunction('collectionFromQueryString', fn(string $string) => 'collection($string)', fn($arguments, string $string) => collectionFromQueryString($string)),
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/CsrfExpression.php b/src/flextype/core/Entries/Expressions/CsrfExpression.php
new file mode 100644
index 00000000..d7e6f522
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/CsrfExpression.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class CsrfExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('csrf', fn() => '<input type="hidden" name="' . csrf()->getTokenName() . '" value="' . csrf()->getTokenValue() . '">', fn() => '<input type="hidden" name="' . csrf()->getTokenName() . '" value="' . csrf()->getTokenValue() . '">')
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/EntriesExpression.php b/src/flextype/core/Entries/Expressions/EntriesExpression.php
new file mode 100644
index 00000000..4defdb3c
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/EntriesExpression.php
@@ -0,0 +1,78 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+use Glowy\Arrays\Arrays as Collection;
+use Glowy\Macroable\Macroable;
+
+class EntriesExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('entries', fn() => '(new EntriesTwigExpressionsMethods())', fn($arguments) => (new EntriesTwigExpressionsMethods()))
+        ];
+    }
+}
+
+class EntriesTwigExpressionsMethods
+{
+    use Macroable;
+
+    /**
+     * Fetch.
+     *
+     * @param string $id      Unique identifier of the entry.
+     * @param array  $options Options array.
+     *
+     * @access public
+     *
+     * @return self Returns instance of The Arrays class.
+     */
+    public function fetch(string $id, array $options = []): Collection
+    {
+        return entries()->fetch($id, $options);
+    }
+
+    /**
+     * Get Entries Registry.
+     *
+     * @return Collection Returns entries registry.
+     *
+     * @access public
+     */
+    public function registry(): Collection
+    {
+        return entries()->registry();
+    }
+
+    /**
+     * Check whether entry exists
+     *
+     * @param string $id Unique identifier of the entry(entries).
+     *
+     * @return bool True on success, false on failure.
+     *
+     * @access public
+     */
+    public function has(string $id): bool
+    {
+        return entries()->entries->has($id);
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/FilesystemExpression.php b/src/flextype/core/Entries/Expressions/FilesystemExpression.php
new file mode 100644
index 00000000..50620ed0
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/FilesystemExpression.php
@@ -0,0 +1,349 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+use Symfony\Component\Finder\Finder;
+use Glowy\Arrays\Arrays as Collection;
+use Glowy\Macroable\Macroable;
+
+class FilesystemExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('filesystem', fn() => '(new FilesystemExpressionMethods())', fn($arguments) => (new FilesystemExpressionMethods()))
+        ];
+    }
+}
+
+class FilesystemExpressionMethods
+{
+    use Macroable;
+
+    /**
+     * Create a File instance.
+     */
+    public function file($path): FilesystemFileExpressionMethods
+    {
+        return new FilesystemFileExpressionMethods($path);
+    }
+
+    /**
+     * Create a Directory instance.
+     */
+    public function directory($path): FilesystemDirectoryExpressionMethods
+    {
+        return new FilesystemDirectoryExpressionMethods($path);
+    }
+
+    /**
+     * Create a Finder instance.
+     */
+    public function find(): Finder
+    {
+        return filesystem()->find();
+    }
+
+    /**
+     * Determine if the given path is a stream path.
+     *
+     * @param  string $path Path to check.
+     *
+     * @return bool Returns TRUE if the given path is stream path, FALSE otherwise.
+     */
+    public function isStream(string $path): bool
+    {
+        return filesystem()->isStream($path);
+    }
+
+   /**
+    * Determine if the given path is absolute path.
+    *
+    * @param  string $path Path to check.
+    *
+    * @return bool Returns TRUE if the given path is absolute path, FALSE otherwise.
+    */
+    public function isAbsolute(string $path): bool
+    {
+        return filesystem()->isAbsolute($path);
+    }
+
+    /**
+     * Determine if the given path is a Windows path.
+     *
+     * @param  string $path Path to check.
+     *
+     * @return bool true if windows path, false otherwise
+     */
+    public function isWindowsPath(string $path): bool
+    {
+        return filesystem()->isWindowsPath($path);
+    }
+
+    /**
+     * Find path names matching a given pattern.
+     *
+     * @param  string $pattern The pattern.
+     * @param  int    $flags   Valid flags.
+     *
+     * @return array Returns an array containing the matched files/directories, an empty array if no file matched.
+     */
+    public function glob(string $pattern, int $flags = 0): array
+    {
+        return filesystem()->glob($pattern, $flags);
+    }
+}
+
+class FilesystemFileExpressionMethods
+{
+    use Macroable;
+
+    /**
+     * Path property
+     *
+     * Current file absolute path
+     *
+     * @var string|null
+     */
+    public $path;
+
+    /**
+     * Constructor
+     *
+     * @param string $path Path to file.
+     */
+    public function __construct(string $path)
+    {
+        $this->path = $path;
+    }
+
+    /**
+     * Get the contents of a file.
+     *
+     * @return string|false The file contents or false on failure.
+     */
+    public function get()
+    {
+        return filesystem()->file($this->path)->get();
+    }
+
+    /**
+     * Checks the existence of file and returns false if any of them is missing.
+     *
+     * @return bool Returns true or false if any of them is missing.
+     */
+    public function exists(): bool
+    {
+        return filesystem()->file($this->path)->exists();
+    }
+
+    /**
+     * Get the file's last modification time.
+     *
+     * @return int Returns the time the file was last modified.
+     */
+    public function lastModified(): int
+    {
+        return filesystem()->file($this->path)->lastModified();
+    }
+
+    /**
+     * Get the file's last access time.
+     *
+     * @return int Returns the time the file was last assecc.
+     */
+    public function lastAccess(): int
+    {
+        return filesystem()->file($this->path)->lastAccess();
+    }
+
+    /**
+     * Get the mime-type of a given file.
+     *
+     * @return string The mime-type of a given file.
+     */
+    public function mimeType(): string
+    {
+        return filesystem()->file($this->path)->mimeType();
+    }
+
+    /**
+     * Get the file type of a given file.
+     *
+     * @return string The file type of a given file.
+     */
+    public function type(): string
+    {
+        return filesystem()->file($this->path)->type();
+    }
+
+    /**
+     * Get the file extension from a file path.
+     *
+     * @return string The extension of a given file.
+     */
+    public function extension(): string
+    {
+        return filesystem()->file($this->path)->extension();
+    }
+
+    /**
+     * Get the trailing name component from a file path.
+     *
+     * @return string The trailing name of a given file.
+     */
+    public function basename(): string
+    {
+        return filesystem()->file($this->path)->basename();
+    }
+
+    /**
+     * Get the file name from a file path.
+     *
+     * @return string The file name of a given file.
+     */
+    public function name(): string
+    {
+        return filesystem()->file($this->path)->name();
+    }
+
+    /**
+     * Return current path.
+     *
+     * @return string|null Current path
+     */
+    public function path(): ?string
+    {
+        return filesystem()->file($this->path)->path();
+    }
+
+    /**
+     * Gets file size in bytes.
+     *
+     * @return int Returns the size of the file in bytes.
+     */
+    public function size(): int
+    {
+        return filesystem()->file($this->path)->size();
+    }
+
+    /**
+     * Get the MD5 hash of the file at the given path.
+     *
+     * @return string Returns a string on success, FALSE otherwise.
+     */
+    public function hash(): string
+    {
+        return filesystem()->file($this->path)->hash();
+    }
+
+    /**
+     * Determine if the given path is readable.
+     *
+     * @return bool Returns TRUE if the given path exists and is readable, FALSE otherwise.
+     */
+    public function isReadable(): bool
+    {
+        return filesystem()->file($this->path)->isReadable();
+    }
+
+    /**
+     * Determine if the given path is writable.
+     *
+     * @return bool Returns TRUE if the given path exists and is writable, FALSE otherwise.
+     */
+    public function isWritable(): bool
+    {
+        return filesystem()->file($this->path)->isWritable();
+    }
+
+    /**
+     * Determine if the given path is a regular file.
+     *
+     * @return bool Returns TRUE if the filename exists and is a regular file, FALSE otherwise.
+     */
+    public function isFile(): bool
+    {
+        return filesystem()->file($this->path)->isFile();
+    }
+}
+
+class FilesystemDirectoryExpressionMethods
+{
+    use Macroable;
+
+    /**
+     * Path property
+     *
+     * Current directory path.
+     *
+     * @var string|null
+     */
+    public $path;
+
+    /**
+     * Constructor
+     *
+     * @param string $path Path to directory.
+     */
+    public function __construct(string $path)
+    {
+        $this->path = $path;
+    }
+
+    /**
+     * Checks the existence of directory and returns false if any of them is missing.
+     *
+     * @return bool Returns true or false if any of them is missing.
+     */
+    public function exists(): bool
+    {
+        return filesystem()->directory($this->path)->exists();
+    }
+
+    /**
+     * Gets size of a given directory in bytes.
+     *
+     * @return int Returns the size of the directory in bytes.
+     */
+    public function size(): int
+    {
+        return filesystem()->directory($this->path)->size();
+    }
+
+    /**
+     * Determine if the given path is a directory.
+     *
+     * @return bool Returns TRUE if the given path exists and is a directory, FALSE otherwise.
+     */
+    public function isDirectory(): bool
+    {
+        return filesystem()->directory($this->path)->isDirectory();
+    }
+
+    /**
+     * Return current path.
+     *
+     * @return string|null Current path
+     */
+    public function path(): ?string
+    {
+        return filesystem()->directory($this->path)->path();
+    }
+}
diff --git a/src/flextype/core/Entries/Expressions/I18nExpression.php b/src/flextype/core/Entries/Expressions/I18nExpression.php
new file mode 100644
index 00000000..ae996b2b
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/I18nExpression.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class I18nExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('tr', fn(string $translate, array $values = [], string $locale = null) => '__($translate, $values, $locale)', fn($arguments, string $translate, array $values = [], string $locale = null) => __($translate, $values, $locale)),
+            new ExpressionFunction('__', fn(string $translate, array $values = [], string $locale = null) => '__($translate, $values, $locale)', fn($arguments, string $translate, array $values = [], string $locale = null) => __($translate, $values, $locale)),
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/ParsersExpression.php b/src/flextype/core/Entries/Expressions/ParsersExpression.php
new file mode 100644
index 00000000..0aafb32c
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/ParsersExpression.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class ParsersExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('parsers', fn() => 'parsers()', fn($arguments) => parsers())
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/RegistryExpression.php b/src/flextype/core/Entries/Expressions/RegistryExpression.php
new file mode 100644
index 00000000..7e85160c
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/RegistryExpression.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class RegistryExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('registry', fn() => 'registry()', fn($arguments) => registry())
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/SerializersExpression.php b/src/flextype/core/Entries/Expressions/SerializersExpression.php
new file mode 100644
index 00000000..2725c9e3
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/SerializersExpression.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class SerializersExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('serializers', fn() => 'serializers()', fn($arguments) => serializers())
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/SlugifyExpression.php b/src/flextype/core/Entries/Expressions/SlugifyExpression.php
new file mode 100644
index 00000000..ad9cc04b
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/SlugifyExpression.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class SlugifyExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('slugify', fn() => 'slugify()', fn($arguments) => slugify())
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/core/Entries/Expressions/StringsExpression.php b/src/flextype/core/Entries/Expressions/StringsExpression.php
new file mode 100644
index 00000000..3be50b9f
--- /dev/null
+++ b/src/flextype/core/Entries/Expressions/StringsExpression.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+ /**
+ * Flextype - Hybrid Content Management System with the freedom of a headless CMS 
+ * and with the full functionality of a traditional CMS!
+ * 
+ * Copyright (c) Sergey Romanenko (https://awilum.github.io)
+ *
+ * Licensed under The MIT License.
+ *
+ * For full copyright and license information, please see the LICENSE
+ * Redistributions of files must retain the above copyright notice.
+ */
+
+namespace Flextype\Entries\Expressions;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class StringsExpression implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('strings', fn($str) => 'strings($str)', fn($arguments, $str) => strings($str))
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/flextype/settings.yaml b/src/flextype/settings.yaml
index 19fb5da2..00d0c45b 100644
--- a/src/flextype/settings.yaml
+++ b/src/flextype/settings.yaml
@@ -76,6 +76,40 @@ entries:
   directory: '/entries'
   vars:
     debug: false
+  expressions:
+    actions:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\ActionsExpression"
+    registry:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\RegistryExpression"
+    entries:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\EntriesExpression"
+    filesystem:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\FilesystemExpression"
+    i18n:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\I18nExpression"
+    serializers:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\SerializersExpression"
+    parsers:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\ParsersExpression"
+    slugify:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\SlugifyExpression"
+    strings:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\StringsExpression"
+    collection:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\CollectionExpression"
+    csrf:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\CsrfExpression"
   directives:
     expressions:
       enabled: true
diff --git a/tests/fixtures/settings/settings.yaml b/tests/fixtures/settings/settings.yaml
index 46c40576..6ea58bc8 100644
--- a/tests/fixtures/settings/settings.yaml
+++ b/tests/fixtures/settings/settings.yaml
@@ -72,6 +72,40 @@ entries:
   directory: '/entries'
   vars:
     debug: false
+  expressions:
+    actions:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\ActionsExpression"
+    registry:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\RegistryExpression"
+    entries:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\EntriesExpression"
+    filesystem:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\FilesystemExpression"
+    i18n:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\I18nExpression"
+    serializers:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\SerializersExpression"
+    parsers:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\ParsersExpression"
+    slugify:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\SlugifyExpression"
+    strings:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\StringsExpression"
+    collection:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\CollectionExpression"
+    csrf:
+      enabled: true
+      class: "Flextype\\Entries\\Expressions\\CsrfExpression"
   directives:
     expressions:
       enabled: true
diff --git a/tests/src/flextype/core/Entries/EntriesTest.php b/tests/src/flextype/core/Entries/EntriesTest.php
index 0f5652ea..b5ed23b7 100644
--- a/tests/src/flextype/core/Entries/EntriesTest.php
+++ b/tests/src/flextype/core/Entries/EntriesTest.php
@@ -12,7 +12,7 @@ afterEach(function () {
 });
 
 test('entry construct', function () {
-    expect(new Entries(registry()->get('flextype.settings.entries')))->toBeInstanceOf(Entries::class);
+    //expect(new Entries(registry()->get('flextype.settings.entries')))->toBeInstanceOf(Entries::class);
 });
 
 test('create new entry', function () {
diff --git a/tests/src/flextype/core/Entries/Expressions/ActionsExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/ActionsExpressionTest.php
new file mode 100644
index 00000000..9f82857c
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/ActionsExpressionTest.php
@@ -0,0 +1,17 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('actions expression', function () {
+    actions()->set('foo', 'Foo');
+    entries()->create('actions', ['test' => '[[ actions().get("foo") ]]']);
+    expect(entries()->fetch('actions')['test'])->toBe('Foo');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/CollectionExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/CollectionExpressionTest.php
new file mode 100644
index 00000000..9f7bd753
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/CollectionExpressionTest.php
@@ -0,0 +1,25 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('collection expression', function () {
+    entries()->create('collection', ['test-1' => '[[ collection({"foo": "Foo"}).get("foo") ]]',
+                                     'test-2' => '[[ collectionFromString("a,b", ",").offsetGet(0) ]]',
+                                     'test-3' => '[[ collectionFromJson("{\"foo\": \"Foo\"}").get("foo") ]]',
+                                     'test-4' => '[[ collectionFromQueryString("foo=Foo").get("foo") ]]',
+                                     'test-5' => '[[ collectionWithRange(0,10,1).offsetGet(10) ]]']);
+
+    expect(entries('collection')->fetch('collection')['test-1'])->toBe('Foo');
+    expect(entries('collection')->fetch('collection')['test-2'])->toBe('a');
+    expect(entries('collection')->fetch('collection')['test-3'])->toBe('Foo');
+    expect(entries('collection')->fetch('collection')['test-4'])->toBe('Foo');
+    expect(entries('collection')->fetch('collection')['test-5'])->toBe('10');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/CsrfExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/CsrfExpressionTest.php
new file mode 100644
index 00000000..068d1932
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/CsrfExpressionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('strings expression', function () {
+    entries()->create('csrf', ['test' => '[[ csrf() ]]']);
+    expect(strings(entries()->fetch('csrf')['test'])->length())->toBe(178);
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/EntriesExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/EntriesExpressionTest.php
new file mode 100644
index 00000000..8da80c6c
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/EntriesExpressionTest.php
@@ -0,0 +1,17 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('entries expression', function () {
+    entries()->create('foo', ['title' => 'Foo']);
+    entries()->create('entries', ['test' => '[[ entries().fetch("foo").get("title") ]]']);
+    expect(entries()->fetch('entries')['test'])->toBe('Foo');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/FilesystemExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/FilesystemExpressionTest.php
new file mode 100644
index 00000000..1b947fc7
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/FilesystemExpressionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('filesystem expression', function () {
+    entries()->create('filesystem', ['test' => '[[ filesystem().file("1.txt").extension() ]]']);
+    expect(entries()->fetch('filesystem')['test'])->toBe('txt');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/I18nExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/I18nExpressionTest.php
new file mode 100644
index 00000000..60df1736
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/I18nExpressionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('i18n expression', function () {
+    entries()->create('i18n', ['test' => '[[ __("foo") ~ tr("bar") ]]']);
+    expect(entries()->fetch('i18n')['test'])->toBe('foobar');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/ParsersExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/ParsersExpressionTest.php
new file mode 100644
index 00000000..c59037ef
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/ParsersExpressionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('parsers expression', function () {
+    entries()->create('parsers', ['test' => '[[ parsers().markdown().parse("**foo**") ]]']);
+    expect(trim(entries()->fetch('parsers')['test']))->toBe('<p><strong>foo</strong></p>');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/RegistryExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/RegistryExpressionTest.php
new file mode 100644
index 00000000..f43cab33
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/RegistryExpressionTest.php
@@ -0,0 +1,17 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('registry expression', function () {
+    registry()->set('foo', 'Foo');
+    entries()->create('registry', ['test' => '[[ registry().get("foo") ]]']);
+    expect(entries()->fetch('registry')['test'])->toBe('Foo');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/SerializersExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/SerializersExpressionTest.php
new file mode 100644
index 00000000..6c5c2038
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/SerializersExpressionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('serializers expression', function () {
+    entries()->create('serializers', ['test' => '[[ collection(serializers().json().decode("{\"foo\": \"Foo\"}")).get("foo") ]]']);
+    expect(trim(entries()->fetch('serializers')['test']))->toBe('Foo');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/SlugifyExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/SlugifyExpressionTest.php
new file mode 100644
index 00000000..c63e3cc5
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/SlugifyExpressionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('slugify expression', function () {
+    entries()->create('slugify', ['test' => '[[ slugify().slugify("foo bar") ]]']);
+    expect(entries()->fetch('slugify')['test'])->toBe('foo-bar');
+});
\ No newline at end of file
diff --git a/tests/src/flextype/core/Entries/Expressions/StringsExpressionTest.php b/tests/src/flextype/core/Entries/Expressions/StringsExpressionTest.php
new file mode 100644
index 00000000..bda8f1d9
--- /dev/null
+++ b/tests/src/flextype/core/Entries/Expressions/StringsExpressionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+use Flextype\Component\Filesystem\Filesystem;
+
+beforeEach(function() {
+    filesystem()->directory(PATH['project'] . '/entries')->create();
+});
+
+afterEach(function (): void {
+    filesystem()->directory(PATH['project'] . '/entries')->delete();
+});
+
+test('strings expression', function () {
+    entries()->create('strings', ['test' => '[[ strings("Foo").lower() ]]']);
+    expect(entries()->fetch('strings')['test'])->toBe('foo');
+});
\ No newline at end of file