Clear mappings in current buffer

Question

How can I disable all user mappings only for current buffer in vim? I've tried :mapclear but it removed mappings for all buffers.

Answer 1

You might be looking for <buffer> argument.

This argument ensures that the command or the mapping will be effective only in the local buffer rather than the global buffer.

To clear all the user-mapping in the local buffer, :mapclear <buffer> should be used.

For more information, look at :h :map-<buffer>

Answer 2

Here is the temporary solution I've found so far.

let lowercase = 'abcdefghijklmnopqrstuvwxyz'
let uppercase = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
let numbers = '0123456789'
let punctuation = "<>`@#~!\"$%^&/()=+*-_.,;:?\\\'{}[] " " and space
for str in [lowercase, uppercase, numbers, punctuation]
    for key in split(str, '\zs')
        execute printf("noremap <silent> <buffer> <nowait> %s :call DO_SOMETHING_OR_NOTHING<cr>", key)
    endfor
endfor

Basically this snippet will remap all the normal mappings for local buffer.