I played around with a few options (see patchset 1) but ended
introducing new terminology:
* "Backlink" describes the ↑ button down in the list of <references>
that jumps back up into the article. The code was already using
"backlink" in some places.
* "Backlink target" is the id="…" attribute up there, visible as the
typical [1] in the article.
* I use "jump" to describe the idea that clicking the [1] jumps down
to the full reference.
* "Jump target" is the id="…" down there in the list of <references>.
* "Jump link" is the same id, but encoded to be used as the href="…"
attribute when clicking the [1].
I hope this makes sense. Suggestions welcome.
Another benefit is that "normalization" is really only normalization
now, not any URL and/or HTML encoding.
Bug: T298278
Change-Id: I5a64ac43aef895110b61df65b27f683b131886fb
Note how this currently behaves. The user input is
<ref name="… …">
But what we get in the end is
<li id="… …">
This implies that the is decoded and re-encoded with a
slightly different entity encoding. (Note that and  
and   are all the same character.)
Also note how there is only an underscore in the href="…", but the
non-breaking space is gone. This is identical to what happens in
links and headlines. Try for example [[a _a]]. Multiple
underscores, non-breaking spaces, and normal spaces will be
normalized. We just do the same in the id="…" attributes.
Note this fixes only one of the issues listed in T298278.
Bug: T298278
Change-Id: Ia01f2fdd3b3e9ee6aaa9da60ca3386dcd5d6b1a0
Note how only the HTML5 mode behavior changes, but nothing in
legacy mode.
Also note this does not 100% fix the issue. The esample with a
non-breaking space is still broken. But it's already much better
than before.
Bug: T298278
Change-Id: Idf50dad4219ff4c594a0cc15f63cb10fdac5ffb7
This is only to document the current status quo and make later patches
smaller and easier to review.
Bug: T298278
Change-Id: I6c78f4d3ee32de596f2b5ee081d56eaffb1cc7bd