I'm trying to get Vim to highlight non-ASCII characters. Is there an available setting, regex search pattern, or plugin to do so?
While in insert mode, you can insert special characters in Vim by pressing <ctrl-k> followed by a two-character lookup code.
Using range in a []
character class in your search, you ought to be able to exclude the ASCII hexadecimal character range, therefore highlighting (assuming you have hlsearch
enabled) all other characters lying outside the ASCII range:
/[^\x00-\x7F]
This will do a negative match (via [^]
) for characters between ASCII 0x00
and ASCII 0x7F
(0-127), and appears to work in my simple test. For extended ASCII, of course, extend the range up to \xFF
instead of \x7F
using /[^\x00-\xFF]
.
You may also express it in decimal via \d
:
/[^\d0-\d127]
If you need something more specific, like exclusion of non-printable characters, you will need to add those ranges into the character class []
.
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