regex101: JavaScript Match Workspace

^start of line

Positive Lookahead(?=.{3,50}$)

.{3,50}any character (except for line terminators), repeated between 3 and 50 times

$end of line

Negated Character Class[^\s\d]*

*matches any number of characters outside the set below:

\sany whitespace character

\da digit

Group 1(\s[^\s\d]*)?

?repeats the group contents below at most once:

\sany whitespace character

Negated Character Class[^\s\d]*

*matches any number of characters outside the set below:

\sany whitespace character

\da digit

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

26 tokens

Regular Expression

^(?=.{3,50}$)[^\s\d]*(\s[^\s\d]*)?$

New

I need a RegEx to match the following condition:

1 or 2 words
Total minimum length is 3
Total maximum length is 50
Accept accented characters
No numbers is a plus
Examples of accepted strings: dfg dfg dfg sdfg dasfg 

Karmen Garcia
João Pedro
Vitor
maxiliamum Lófffffffffffffffffffffffffffffffffffff
Nadál
loriPsium PsisVõèrbizbbbbbbbbbb
Examples of non accepted string:

Jony Cam Vanis
kljsdfklsdfkljsfkldsfkljs dsfkljsdlfldjsfkldjsfljsdlkfjls
sdlfkjsdklfjklsdfjkljsfjsdfljsdlfjsdfkljsdfkljsdlfkjlksf
9lucas P.us-kas1 Li1
What I tried:

^(?!.*?\s{2})[A-Za-z ]{3,50}$
^([a-zA-Z][a-zA-Z]){3,50}$