JOSM I18n contest 2025

[stoecker]

I started a new contest in 2025, as I'm really unhappy with the completeness of our translations:

StartupPage contains following text:

JOSM supports 41 languages beside English. But only 7 of these (German, Spanish, Dutch, Belarusian, Russian, Ukrainian and Portuguese) are above 99% completeness for JOSM core. Even such important languages as French are not. I hereby challenge the JOSM users to change that situation and let 2025 be the year of the JOSM I18n contest. See Translations (and the statistics table linked there).

This ticket should be used to track progress. For the contest I'll focus on the JOSM core translations, but I hope that also means the other places when JOSM needs I18n support aren't ignored.

I'll try to report progress here each or every second week as long as there is progress.

[stoecker]

Starting State (r19277):

de	en_GB	es	nl	be	ru	uk	pt	pt_BR	ar	it	fr	cs	hu	sk	bg	zh_CN	zh_TW	pl	da	en_AU	nb	ja	id	ko	sv	ca
100.0	99.8	99.8	99.8	99.8	99.8	99.7	99.4	94.8	93.9	93.9	92.3	91.6	88.7	86.4	85.3	83.8	83.8	83.3	81.8	77.6	75.6	74.2	67.4	66.3	61.9	58.7

gl	tr	lt	el	vi	ast	fi	ca@valencia	fa	sr@latin	km	mr	cy	et	is
58.6	54.7	54.3	54.0	52.5	51.5	50.0	45.1	39.9	38.1	32.6	30.5	26.3	24.9	22.7