On 2016-09-16 23:57, Herbert Valerio Riedel wrote:
Besides, many YAML (& JSON) parsers silently drop duplicate keys, so if by accident you place a 2nd `else:` branch somewhere, you end up with an ambiguous .yaml file which may either result in an error, in the first key getting dropped (most likely variant), or in the 2nd key getting dropped. Which one you get depends on the YAML parser implementation.
I was actually curious about this, and it's interesting to note that even JSON which was supposed to have *ONE STANDARD* now apparently has two, an ECMA one and and IETF RFC (seems to be more recent). So I'd say JSON technically _allows_ duplicate keys, but that you cannot reasonably any type of sane behavior in practice if you do that. Source: http://stackoverflow.com/a/23195243 (Didn't check up on what the situation is in YAML. YAML is too awful to contemplate regardless.) Regards,