Add de_ch and de_ch_informal to remove_accents custom German rules

[grapplerulrich]

de_DE and de_DE_formal are already added. It would be really nice if we could could support the DE_CH version too.

[grapplerulrich]

Have added a patch

[TobiasBg]

Formal/informal seems to be mixed up in patch, between docs and the locale name.

[grapplerulrich]

Ah, thanks, updated the patch

[DrewAPicture]

This is a good start. Two things:

1. There should be a changelog entry for the new locale support. Something like this would be OK:

   * @since 4.6.0 Locale support was added for `de_CH` and `de_CH_formal`.
   

2. In the table description, there's a missing comma and we should use the expecting casing of the language codes, e.g. ge_CH, ge_CH_formal.

[grapplerulrich]

@DrewAPicture Thank you for your comments. I don't fully understand what you mean with the second point.

[DrewAPicture]

Replying to grapplerulrich:

@DrewAPicture Thank you for your comments. I don't fully understand what you mean with the second point.

In the table description, there's a missing comma

A serial comma should be used to list the locales: "German (de_DE), German formal (de_DE_formal), German (Switzerland) formal (de_ch), and German (Switzerland) informal (de_ch_informal) locales:"

and we should use the expecting casing of the language codes, e.g. ge_CH, ge_CH_formal.

The language codes shouldn't be all lowercase in the table description. de_ch_informal vs de_CH_informal.

[grapplerulrich]

I have updated a new patch. I am not used to using the serial comma. Is the use of the serial comma documented anywhere?

[DrewAPicture]

Replying to grapplerulrich:

I have updated a new patch. I am not used to using the serial comma. Is the use of the serial comma documented anywhere?

It's in the ​#Grammar section of the PHP Documentation Standards.

37076.2.patch​ looks great :-)

[SergeyBiryukov]

In 37698:

I18N: In remove_accents(), add support for de_CH and de_CH_informal.

Props grapplerulrich.
Fixes #37076.