Merge branch '3.4' into 4.4

* 3.4:
  drop logger mock in favor of using the BufferingLogger
  [Yaml Parser] Fix edge cases when parsing multiple documents
  fix parsing comments not prefixed by a space

Author: xabbuh

Inline.php

@@ -90,7 +90,7 @@ public static function parse(string $value = null, int $flags = 0, array $refere
             }
 
             // some comments are allowed at the end
-            if (preg_replace('/\s+#.*$/A', '', substr($value, $i))) {
+            if (preg_replace('/\s*#.*$/A', '', substr($value, $i))) {
                 throw new ParseException(sprintf('Unexpected characters near "%s".', substr($value, $i)), self::$parsedLineNumber + 1, $value, self::$parsedFilename);
             }
 

Parser.php

@@ -102,6 +102,7 @@ public function parse(string $value, int $flags = 0)
             $this->refs = [];
             $this->skippedLineNumbers = [];
             $this->locallySkippedLineNumbers = [];
+            $this->totalNumberOfLines = null;
         }
 
         return $data;

Tests/InlineTest.php

@@ -799,6 +799,16 @@ public function testParseNegativeOctalNumberContainingInvalidDigits()
         self::assertSame('-0123456789', Inline::parse('-0123456789'));
     }
 
+    public function testParseCommentNotPrefixedBySpaces()
+    {
+        self::assertSame('foo', Inline::parse('"foo"#comment'));
+    }
+
+    public function testParseUnquotedStringContainingHashTagNotPrefixedBySpace()
+    {
+        self::assertSame('foo#nocomment', Inline::parse('foo#nocomment'));
+    }
+
     /**
      * @dataProvider unquotedExclamationMarkThrowsProvider
      */

Tests/ParserTest.php

@@ -2438,6 +2438,39 @@ public function testParseValueWithNegativeModifiers()
             $this->parser->parse($yaml)
         );
     }
+
+    /**
+     * This is a regression test for a bug where a YAML block with a nested multiline string using | was parsed without
+     * a trailing \n when a shorter YAML document was parsed before.
+     *
+     * When a shorter document was parsed before, the nested string did not have a \n at the end of the string, because
+     * the Parser thought it was the end of the file, even though it is not.
+     */
+    public function testParsingMultipleDocuments()
+    {
+        $shortDocument = 'foo: bar';
+        $longDocument = <<<YAML
+a:
+    b: |
+        row
+        row2
+c: d
+YAML;
+
+        $expected = ['a' => ['b' => "row\nrow2\n"], 'c' => 'd'];
+
+        // The parser was not used before, so there is a new line after row2
+        $this->assertSame($expected, $this->parser->parse($longDocument));
+
+        $parser = new Parser();
+        // The first parsing set and fixed the totalNumberOfLines in the Parser before, so parsing the short document here
+        // to reproduce the issue. If the issue would not have been fixed, the next assertion will fail
+        $parser->parse($shortDocument);
+
+        // After the total number of lines has been rset the result will be the same as if a new parser was used
+        // (before, there was no \n after row2)
+        $this->assertSame($expected, $parser->parse($longDocument));
+    }
 }
 
 class B