Symfony version(s) affected

7.4.0 (arguably earlier as well)

Description

When failing to parse a YAML file, the line number is incorrect - and changed in 7.4.0.

How to reproduce

Have invalid YAML, for example:

en:
  NONAMESPACE: Include Entity without Namespace
  Invalid: Foo
    About: 'About us'
    - Invalid

Parse with the following code:

use Symfony\Component\Yaml\Parser;

$path = 'path/to/the/file.yaml';

$parser = new Parser();
$parser->parse(file_get_contents($path));

Note the line should probably be "4" for the above (i.e. the line where the offending colon lives), but for 7.3.5 it reported as line "5" and as of 7.4.0 it reports as line "6".

Note also that if you remove the empty line at the bottom of the file, it reports as line "5" again - but the empty line at the end of the file shouldn't affect which line the error is reported for.

Possible Solution

No response

Additional Context

No response