For the used diff engines an empty/new page is equivalent
to an empty line. When adding content that includes an
empty line the content will be split into two parts. The
interpreted diff will then consist of one addition, one
copied line and another addition.
Is the ping in the first addition and the signature in the
second addition the DiscussionParser does not send mentions.
The patch introduces a special case when interpreting diffs
if content is added to empty content. This will also skip
execution off diff engines since the interpretation is trivial.
Bug: T155998
Change-Id: Id5e44bc3245940c1f77c80f036db637756542552
wfDiff() is deprecated and using the internal diff engine is
recommended as replacement.
Bug: T93625
Change-Id: I60af08888ef4e0bc9b80b75495f6e9e3fa631002
General code cleanup as reported by the PHPStorm static code
analysis. I hope it's not a problem that I made a lot of very
different (but all very tiny) changes in a single patch. If you
want to merge this but you think it's better to split it into
several patches first, please tell me.
Change-Id: I2e2c4bb47f8d20e038d28e236e2ff813b30504af
Detects changes to different parts of the document as independent from each
other. Refactored parser passes all tests the previous parser passed plus
a number of new tests which fail with the original parser.
Change-Id: I65fdc6d9f922cbe9ff684332945def3776c70d30
