New submission from Julien Palard:
Since ja has been added to the language switch, a bug appeared and in some case
the switch won't ... switch.
Due to a regex bug in switchers.js, a needed trailing slash is sometimes not
matched. It has not been detected previously as it can happen only when there
more than two languages in the picker which is now the case.
Bug is in: var language_regexp = '\.org/(' +
Object.keys(all_languages).join('|') + '/)';
It only matches the trailing slash for the last language, currently the / is
for ja, so fr does no longer match the needed slash.
Fix may consists in adding a non-matching group around the join.
But there's another issue when a user goes to a version in which there's a
language picker but the current langage is not known by the picker, typically
if a user is on /ja/2.7/ but the language picker with Japanese has only been
merged on 3.6 and 3.7: the regex on /ja/2.7 will not contain "ja", so it will
not be able to match it.
So we should write this regex otherwise, I grepped on the server logs and
checked on the filesystem, this one should work better and still be safe:
var language_regexp = '\.org/([a-z]{2}(?:-[a-z]{2})?/)';
----------
messages: 299990
nosy: mdk
priority: normal
severity: normal
status: open
title: Doc: Language switch can't switch on specific cases
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue31159>
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