add missing keywords + easier maintainability

[possiblyhuman]

reference issue #41

I generated command/variable/property lists from CMake 3.13.2 with the following commands:

cmake --help-property-list
cmake --help-command-list
cmake --help-variable-list

I put these into the CMake.tmLanguage file with 1 item per line to make tracking changes with git easier.

I also added some missing keywords that the above did not address.

I added some instructions for what I did (plus the unedited list files generated from cmake --help) into a util folder.

There are some limitations listed in the instruction document, mainly being that the lists obviously don't split into all the sub-categories that were used previously.

I've removed the regex strings from the potentially unnecessary sub-categories in the CMake.tmLanguage file, but have left them otherwise intact in case they are needed in future.

If this approach is considered usable going forward, it would probably be a good idea in future to write a script to perform the steps in the instruction document.

I've not tested this extensively to see what else might be missing, or what these big changes might break; I've only tested on my own small, modern-style cmake files.

[possiblyhuman]

I made a seperate branch (tmLanguage_refactor) with additional changes on top of those in the branch in this pull request.

I decided to keep these branches seperate as the changes in the new branch make more extensive structural changes to the CMake.tmLanguage file.

The new branch does this following:

• Removes now unneeded (empty regex) sections.
• Move larger sections to bottom of document
• Seperate Control Flow commands from larger command list (+ add step for this to instruction document)
• Improve colorization
• Start adding seperate sections for sub command lists for individual commands (i.e. install() and export()).

[twxs]

Hi, thank you for this PR.
I will look to add a simple CMake script that call the cmake --help-xxx-list and use configure_file to generate de tmLanguage file.

[gudnimg]

Hi, any update on this?

[sryze]

Can we have the new functions/keywords added please? This extension is the de facto standard CMake language syntax extension, because it's part of CMake Tools by Microsoft... it shouldn't be this outdated.

[WhoBrokeTheBuild]

There's also the new cmake_path that should be added:
https://cmake.org/cmake/help/latest/command/cmake_path.html

As well as more commands I'm sure, I would love to see this updated with CMake 3.23+

[StewMcc]

@imrichardcole
I think this would be a good starting point for reviving this, it fixes a lot of the existing issues with the age of the current extension, might be possible to extend this to a little bit of automation i.e. launch.json to run an update script (not full blown ci/cd).

I believe the repo pre-dates the new commands in 3.13+ for doing this, which would make this sort of extension much easier to maintain.