Merge branch '3.4' into 4.3

* 3.4:
  [Dotenv] allow LF in single-quoted strings
  [Yaml] Throw exception for tagged invalid inline elements

Author: nicolas-grekas

Inline.php

@@ -94,15 +94,15 @@ public static function parse(string $value = null, int $flags = 0, array $refere
                     $result = self::parseScalar($value, $flags, null, $i, null === $tag, $references);
             }
 
-            if (null !== $tag && '' !== $tag) {
-                return new TaggedValue($tag, $result);
-            }
-
             // some comments are allowed at the end
             if (preg_replace('/\s+#.*$/A', '', substr($value, $i))) {
                 throw new ParseException(sprintf('Unexpected characters near "%s".', substr($value, $i)), self::$parsedLineNumber + 1, $value, self::$parsedFilename);
             }
 
+            if (null !== $tag && '' !== $tag) {
+                return new TaggedValue($tag, $result);
+            }
+
             return $result;
         } finally {
             if (isset($mbEncoding)) {

Tests/InlineTest.php

@@ -167,6 +167,12 @@ public function testParseInvalidSequenceShouldThrowException()
         Inline::parse('{ foo: bar } bar');
     }
 
+    public function testParseInvalidTaggedSequenceShouldThrowException()
+    {
+        $this->expectException('Symfony\Component\Yaml\Exception\ParseException');
+        Inline::parse('!foo { bar: baz } qux', Yaml::PARSE_CUSTOM_TAGS);
+    }
+
     public function testParseScalarWithCorrectlyQuotedStringShouldReturnString()
     {
         $value = "'don''t do somthin'' like that'";