CMake syntax has been redesigned to pursue the following goals:
* the former generator has used an output of `cmake --help` (and friends) commands, which is quite informal (not a well formed) and error prune
* the current syntax was really out of date
The new approach is to use a trivial Python script, which uses a prepared YAML data file and Jinja template to render the resulting syntax file.
Key features of the new implementation are:
* every command highlight only related named parameters -- e.g. `add_library` do not have `TARGET` named option, so it doesn't highlighted in this context
* new highlight classes has introduced to distinct property names, aliased (imported) targets, special non-named arguments...
* reuse RST syntax for comments
* input data now in VCS and trackable
there is still some work to do, but I've just want to know is there any interest in this approach...