Special key caps such as '*ZWNJ*' are defined in a number of places in
the source. In theory, we could DRY these definitions out, but that
would add a number of unhelpful dependencies or take considerable time
to implement. So, for now I opted to write a unit test to compare the
definitions as found in the following files, treating web's definition
as primary:
* web/src/engine/osk/src/specialCharacters.ts
* developer/src/tike/xml/layoutbuilder/constants.js
* developer/src/kmc-kmn/kmw-compiler/constants.ts
* developer/docs/help/reference/file-types/keyman-touch-layout.md
* core/include/ldml/keyman_core_ldml.ts
Note that the keyman_core_ldml.ts file changes are not included in this
commit, and hence the unit test for it is currently skipped. This will
be enabled in a subsequent commit along with other KMX+ changes to
support epic/embed-osk-in-kmx.
Test-bot: skip
1. Copy help.keyman.com/developer/17.0/* into /developer/docs/help
2. Update references to 18.0 where appropriate
3. Copy all referenced images from /cdn/dev into
/developer/docs/help/images and update links in documentation
Next commit: add deployment to help-keyman-com.sh. Note: simplest way to
test links at this point is to use the help.keyman.com auto deploy and
wait for the PR on help.keyman.com to be validated; we could look at an
internal link validation tool that verifies markdown links?
Relates-to: #12347
