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created 2002 · complexity intermediate · author colin dearing · version 6.0
Ever wondered how long the current word is? This can be quite useful when editing data files. Add the following to your vimrc:
nnoremap <C-_> :echo 'word' expand('<cword>') 'has length' strlen(expand('<cword>'))<CR>
Then press Ctrl-_ to display the word under the cursor, and its length. The length is the number of bytes in the word, which is not the same as the number of characters if a multi-byte encoding is used. To get the number of characters, use:
nnoremap <C-_> :echo 'word' expand('<cword>') 'has length' strlen(substitute(expand('<cword>'), '.', 'x', 'g'))<CR>
For strings that aren't words, use the following to show the number of bytes in visually selected text when Ctrl-_ is pressed:
vnoremap <C-_> "-y:echo 'text' @- 'has length' strlen(@-)<CR>
It would be better to use
:set showcmd to display the length (in bytes and characters) of any visually selected text. Then type
viw to select the current word and show its length (
v starts a character-wise visual selection and
iw selects the inner word).