Side by side translations with highlighted diffs

[DanielJames]

If a translation has been forked from the original, through the 'import booki' process, you can only see revisions of the fork in the view window, not any subsequent changes to the original. The original manual is likely to get ahead of the fork quickly, in terms of commits. So you would need to have at least two browser tabs open to compare the latest versions of the original and translation.

We would like the ability to see the edit window for the current revision of the original book, side by side with the edit window for the translation, within the same web page. (Because translators can also correct errors in the original, bringing both versions up to date).

Personally I would prefer not to use a pop-up window, because scrolling two independent windows can get tricky - it's easy to lose your place.

Each translated chapter would have to be tagged with the revision number of the original chapter it was based on. Then diffs from that version to the current version would be highlighted in the 'original' window.

We can't assume that all manuals will start with English versions, so we would need to tag chapters with an original language code too (which might be implicit in the URL of the original book chapter). That would cover books remixed from different language sources, say six chapters from Spanish to Finnish and three chapters from French to Finnish.

There would need to be some way for users to declare the translation complete, such as a checkbox, so that the original-language-code-x-and-revision-number-y tag could be updated.