Merge branch '4.4' into 5.3

* 4.4:
  Added italian missing translation
  Fix persian (fa) translation
  Add missing translation for Estonian
  Add validator missing french translation
  Add missing translation
  [Security][Validator] Add missing translations for Gallician (gl)
  Update validators.ar.xlf
  bug #43038 [Validator] Fixes URL validation for single-char subdomains.

Author: derrabus

Constraints/UrlValidator.php

@@ -25,7 +25,7 @@ class UrlValidator extends ConstraintValidator
             (%s)://                                 # protocol
             (((?:[\_\.\pL\pN-]|%%[0-9A-Fa-f]{2})+:)?((?:[\_\.\pL\pN-]|%%[0-9A-Fa-f]{2})+)@)?  # basic auth
             (
-                ([\pL\pN\pS]+\.?[\pL\pN\pS\-\_]+)+(\.?([\pL\pN]|xn\-\-[\pL\pN-]+)+\.?) # a domain name
+                ([\pL\pN\pS\-\_]+\.)*(([\pL\pN]|xn\-\-[\pL\pN-]+)+\.?) # a domain name
                     |                                                 # or
                 \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}                    # an IP address
                     |                                                 # or

Resources/translations/validators.ar.xlf

@@ -390,6 +390,10 @@
                 <source>This value should be a valid expression.</source>
                 <target>يجب أن تكون هذه القيمة تعبيرًا صالحًا.</target>
             </trans-unit>
+            <trans-unit id="101">
+                <source>This value is not a valid CSS color.</source>
+                <target>هذه القيمة ليست لون CSS صالحًا.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

Resources/translations/validators.en.xlf

@@ -390,6 +390,10 @@
                 <source>This value should be a valid expression.</source>
                 <target>This value should be a valid expression.</target>
             </trans-unit>
+            <trans-unit id="101">
+                <source>This value is not a valid CSS color.</source>
+                <target>This value is not a valid CSS color.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

Resources/translations/validators.et.xlf

@@ -390,6 +390,10 @@
                 <source>This value should be a valid expression.</source>
                 <target>See väärtus pole korrektne avaldis.</target>
             </trans-unit>
+            <trans-unit id="101">
+                <source>This value is not a valid CSS color.</source>
+                <target>See väärtus pole korrektne CSS-i värv.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

Resources/translations/validators.fa.xlf

@@ -390,6 +390,10 @@
                 <source>This value should be a valid expression.</source>
                 <target>Cette valeur doit être une expression valide.</target>
             </trans-unit>
+            <trans-unit id="101">
+                <source>This value is not a valid CSS color.</source>
+                <target>Cette valeur n'est pas une couleur CSS valide.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

Resources/translations/validators.fr.xlf

@@ -386,6 +386,10 @@
                 <source>This value is not a valid International Securities Identification Number (ISIN).</source>
                 <target>Este valor non é un número de identificación de valores internacionais (ISIN) válido.</target>
             </trans-unit>
+            <trans-unit id="100">
+                <source>This value should be a valid expression.</source>
+                <target>Este valor debe ser unha expresión válida.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

Resources/translations/validators.gl.xlf

@@ -390,6 +390,10 @@
                 <source>This value should be a valid expression.</source>
                 <target>Questo valore dovrebbe essere un'espressione valida.</target>
             </trans-unit>
+            <trans-unit id="101">
+                <source>This value is not a valid CSS color.</source>
+                <target>Questo valore non è un colore CSS valido.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>

Resources/translations/validators.it.xlf

@@ -101,6 +101,10 @@ public function getValidUrls()
             ['http://a.pl'],
             ['http://www.example.com'],
             ['http://tt.example.com'],
+            ['http://m.example.com'],
+            ['http://m.m.m.example.com'],
+            ['http://example.m.example.com'],
+            ['https://long-string_with+symbols.m.example.com'],
             ['http://www.example.com.'],
             ['http://www.example.museum'],
             ['https://example.com/'],
@@ -263,6 +267,8 @@ public function getInvalidUrls()
             ['http://'],
             ['http://www..com'],
             ['http://www..example.com'],
+            ['http://www..m.example.com'],
+            ['http://.m.example.com'],
             ['http://wwww.example..com'],
             ['http://.www.example.com'],
         ];