To search Chinese within Vim, I can do
/[^\x00-\xff]<CR>
To search non-Chinese within Vim, I can do
/[\x00-\xff]<CR>
Both worked well within Vim buffer, however,
I found it did not work inside a Vim script.
For example:
This function did not work:
---------------------------------------
function! <SID>vimim_ctrl_x_ctrl_u_bs()
---------------------------------------
let char_before = getline(".")[col(".")-2]
if char_before =~ "[\x00-\xff]"
let s:smart_backspace = 1
endif
endfunction
Instead, I have to use an inaccurate alternative:
---------------------------------------
function! <SID>vimim_ctrl_x_ctrl_u_bs()
---------------------------------------
let char_before = getline(".")[col(".")-2]
if char_before =~ '\w'
let s:smart_backspace = 1
endif
endfunction
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