Add rule Name

Author: arifszn

resources/lang/en/validation.php

@@ -13,6 +13,7 @@
     'float_number' => 'The :attribute must be a float number.',
     'hash' => 'The :attribute must be a hash of :algorithm algorithm.',
     'image_url' => 'The :attribute must be a valid image URL.',
+    'name' => 'The :attribute must be a valid name.',
     'phone' => 'The :attribute must be a valid phone number.',
     'username' => 'The :attribute must be a valid username.',
     'without_spaces' => 'The :attribute must not contain spaces.',

src/Rules/Name.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Arifszn\AdvancedValidation\Rules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+/**
+ * The field under validation must be a valid name.
+ *
+ *  - at least one letter (a-z, A-Z)
+ *  - no emoji
+ *  - no number (if $allowNumber flag is false)
+ *
+ * @package Arifszn\AdvancedValidation\Rules
+ */
+class Name implements Rule
+{
+    /**
+     * @var bool
+     */
+    private $allowNumber;
+
+    /**
+     * @var string
+     */
+    private $errorMessage;
+
+    /**
+     * Create a new rule instance.
+     *
+     * @param bool $allowNumber   Allow number.
+     * @param string|null $errorMessage   Custom error message.
+     * @return void
+     */
+    public function __construct(bool $allowNumber = false, string $errorMessage = null)
+    {
+        $this->allowNumber = $allowNumber;
+        $this->errorMessage = $errorMessage;
+    }
+
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param string $attribute
+     * @param mixed $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        // check at least one letter (a-z, A-Z)
+        if (!preg_match('/[A-Za-z]+/', $value)) {
+            return false;
+        }
+
+        // check no emoji
+        if (preg_match('/\p{S}/u', $value)) {
+            return false;
+        }
+
+        if ($this->allowNumber && !preg_match('/^([^0-9]*)$/', $value)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+        return $this->errorMessage ? $this->errorMessage : trans('advancedValidation::validation.name');
+    }
+}