User:TJones (WMF)/Notes/Fallback Languages

October 2016 — See TJones_(WMF)/Notes for other projects. (related to T146358)

Background
For some languages, if we don't have a language analyzer, we can specify that we should fall back to a different language analyzer, if available. For example, there is no Ukrainian analyzer, so we fall back to the Russian analyzer. Obviously this is far from perfect, but it's better than nothing. It's also good to keep these in mind when making changes to an analyzer that is a default for other languages.

In the Ukrainian/Russian case, this seems to mean that changes made to Russian-language wikis will happen on Ukrainian-language wikis, and changes necessary for Ukrainian-language wikis will have to be made for Russian-language wikis, too, unless we special-case them by language (which is doable, but hacky). That complicates matters.

I've done my best to expand the language and orthography codes (in parens) for ease of reading and searching the page, but if they expansion disagrees with the code, the code is correct.

These codes come from the  variables in the source files. They were extracted on October 7, 2016 (and may have been getting stale since then).