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vim opencl file-type vim-syntax-highlighting

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March 1, 2026 Score: 2 Rep: 199,740 Quality: Medium Completeness: 40%

:help :setfiletype is typically used for setting the filetype of a buffer that doesn't have a filetype yet. The filetype of your .cl buffer has already been set to lisp by the time your autocommand is executed so :setfiletype does nothing by design.

You should use :help set and the :help 'filetype' option instead:

autocmd BufRead,BufNewFile .cl set filetype=opencl