We originally used 'templates' because it seemed like an obvious
choice for HTML files, and because 'packageFiles' requires extra code
to include anything that isn't a .js or .json file.
However, the templates are expected to be HTML fragments rather than
whole documents, and they are parsed in a particular way that takes a
lot of code to clean up (which we needed to do, because we use the
same test files for testing PHP code).
I tried doing it in the 'packageFiles' way, and the extra code doesn't
seem that bad in comparison after all. Moreover, the 'templates'
mechanism (when used the intended way) feels vaguely deprecated in
favor of Vue.js, and I'd rather move away from it.
This makes the tests faster too (probably mostly thanks to the removal
of the clean up code) – on my machine they go from 1800ms to 1500ms.
(Simplify linearWalk tests, as we no longer need to do weird things
with document fragments to get consistent outputs in PHP and JS.)
Change-Id: I39f9b994ce5636d70fea2e935a7c87c7d56dcb26
Add yet another tree walking utility: CommentUtils::linearWalk().
Unlike TreeWalker, it allows handling the beginnings and ends of nodes
separately – kind of like parsing a XML token stream, or kind of like
VisualEditor's linear model.
(Add unit tests for this utility. The simple.html test case is copied
from [VisualEditor/VisualEditor]/demos/ve/pages/simple.html.)
Use this utility to stop skipping when we reach either a closing or
opening block node tag. Previously we'd skip over such tags inside
nested "transparent" nodes (like <a>, <del>, or apparently <font>).
Bug: T271385
Change-Id: I201a942eb3a56335e84d94e150ec2c33f8b4f4e0