Installation is the same as any vim syntax file, and is not complex. Move the
Whiley.vim file to
$VIMRUNTIME/syntax/Whiley.vim
for a system wide install, or to
~/.vim[files]/syntax/Whiley.vim
for a single user install. NOTE: You may have to create the syntax/ directory
in your ~/.vim/ directory.
Once you have moved the syntax file into the correct directory, open up your
.vimrc and add the following line:
"Recognize whiley file type
augroup filetypedetect
au BufNewFile,BufRead *.whiley setf whiley
augroup END
this should set everything up properly, so that you can see Whiley syntax
highlighting in .whiley files.
To enable highlighting of trailing whitespace, and tabs mixed with spaces, type the following into vim:
:let whiley_space_error_highlighting=1
:set syntax=whiley
To disable it again, type this:
:unlet whiley_space_error_highlighting
:set syntax=whiley
The reason you have to type :set syntax=whiley each time is to force vim to
reload the syntax definitions from file, and rehighlight the contents of the
buffer.