`/[^\x00-\]` matches non ascii characters about neovim

[zeertzjq]

/[^\x00-\x7f]

[dev-ardi]

No, What I meant is that the given regex matches the characters when it shouldn't.

[zeertzjq]

Why not?

[dev-ardi]

/[^\x00-\] is not a valid regex

[zeertzjq]

It is. See :h /\]:

							  */\]*
	- To include a literal ']', '^', '-' or '\' in the collection, put a
	  backslash before it: "[xyz\]]", "[\^xyz]", "[xy\-z]" and "[xyz\\]".
	  (Note: POSIX does not support the use of a backslash this way).  For
	  ']' you can also make it the first character (following a possible
	  "^"):  "[]xyz]" or "[^]xyz]".
	  For '-' you can also make it the first or last character: "[-xyz]",
	  "[^-xyz]" or "[xyz-]".  For '\' you can also let it be followed by
	  any character that's not in "^]-\bdertnoUux".  "[\xyz]" matches '\',
	  'x', 'y' and 'z'.  It's better to use "\\" though, future expansions
	  may use other characters after '\'.
	- Omitting the trailing ] is not considered an error. "[]" works like
	  "[]]", it matches the ']' character.

[clason]

(PSA: Vim regex is not PCRE; it is its own flavor.)