Topic: How to fix Plural-Forms

Hello

In Slovak translation files there is historically wrong Plural-Forms field, now:

"Plural-Forms: nplurals=4; plural=(n % 1 == 0 && n == 1 ? 0 : n % 1 == 0 && n >= 2 && n <= 4 ? 1 : n % 1 != 0 ? 2: 3);\n"

and should be:

"Plural-Forms: nplurals=3; plural=(n == 1 ? 0 : n >= 2 && n <= 4 ? 1 : 2);\n"

For example in this snippet:

msgid "%u Player"
msgid_plural "%u Players"
msgstr[0] "%u hráč"
msgstr[1] "%u hráči"
msgstr[2] "%u hráčov"
msgstr[3] "%u hráčov"

all msgstr[3] could be removed, because they are duplicate of msgstr[2]

I can propose PR for all related .po files, but what about Transifex? Will such change automatically propagate or some manual change on web is needed too?

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Plural rules have many competing standards depending on interpretation of the language and grammar. The most reliable may be CLDR/Unicode: https://www.unicode.org/cldr/charts/46/supplemental/language_plural_rules.html

Looks like Czech has a Singular form for n=1, a Few form for integral n=2..4, an Other form for other integer values, and a Many form for non-integer (decimal) values.

The table you attached uses different names, but the form named Two is commonly only used for languages with a rule "n=2" (e.g. Arabic).

Edit: Note that Widelands only uses ngettext with non-negative integers, so the decimal forms are unused for us.

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We continued discussion in this closed PR: https://codeberg.org/wl/widelands/pulls/5017

I realised that 3rd form (msgstr[2] "%u hráčov" or Category many of unicode page) is not another plural form, but it is special case for any number with a fractional part. In Slovak Genitive case is used, I suppose similar in Czech. So e.g. this could be formally correct tranlation for you:

msgstr[0] "%u hráč"
msgstr[1] "%u hráči"
msgstr[2] "%u hráče"
msgstr[3] "%u hráčů"

(even it doesn't make sense to have fractional part of players, but I think you get the point)

Actually I haven't seen any fractional numbers in widelands' strings - like %f or %g, but translation can support it.

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