Hi Pablo, On Thu, Jul 17, 2025 at 06:41:21PM +0200, Pablo Rodriguez via ntg-context wrote:
Excuse my extremely simplistic approach: following recommendations may avoid extra issues with ConTeXt-generated documents.
If for whatever reason any PDF browser (Acrobat included) is case-sensitive for country codes in uppercase chars, lowercase chars will be problematic.
If any PDF browser (or all of them) is (are) case-insensitive for country codes, it won’t hurt to have them in uppercase.
In an ideal world, I would of course agree with you that we should follow the recommendation of the “source standards” of BCP 47 (ISOs 639, 3166 and 15924, in particular). However, I know from experience that Hans is more likely to listen to advice that tells him to put everything in lowercase ;-) so in a sense, it does hurt to put country codes in uppercase or script codes in title case. Best, Arthur