RegEx with extended latin alphabet (ä ö ü è ß) etc

[Masond3]

HI All, 

I am having a mental block 

I have the following formula 

if isempty([_CurrentField_]) then 'UT'
elseif REGEX_CountMatches(trim([_CurrentField_]), "[^\x20-\x7eÀÈÌÒÙàèìòùÁÉÍÓÚÝáéíóúýÂÊÎÔÛâêîôûÃÑÕãñõÄËÏÖÜŸäëïöüŸ¡¿çÇŒœßØøÅåÆæÞþÐð\.\,\'\’\–]") = 0 then 'T'
else 'F'
endif

Input 

FirstName	LastName
Mikë	Lëmpar
Danielle	Masoné
蔡	蔡

Current Outcome 

FirstName	LastName	First Name Outcome	LastName Outcome
Mikë	Lëmpar	F	F
Danielle	Masoné	T	T
蔡	蔡	F	F

Expected outcome

FirstName	LastName	First Name Outcome	LastName Outcome
Mikë	Lëmpar	T	T
Danielle	Masoné	T	T
蔡	蔡	F	F

Which is working great for non English characters i.e. "Japanese, Korean" etc. 

However i am wondering how can i extended to include the Latin Unicode range i.e. (ä ö ü è ß)

Looking forward to your help 

Regards 

Masond3

[geraldo]

@Masond3

The formula has to be like this > 0

if isempty([_CurrentField_]) then 'UT'
elseif REGEX_CountMatches(trim([_CurrentField_]), "[^\x20-\x7eÀÈÌÒÙàèìòùÁÉÍÓÚÝáéíóúýÂÊÎÔÛâêîôûÃÑÕãñõÄËÏÖÜŸäëïöüŸ¡¿çÇŒœßØøÅåÆæÞþÐð\.\,\'\’\–]") > 0 then 'T'
else 'F'
endif

these characters are not in your regex pattern

[binuacs]

@Masond3 The below regex checks for all the ASCII characters and Latin letters