Regex to validate string for having three non white-space characters

Question

I am using parsley js for validating input and I am using the data-parsley-pattern which allows me to pass in regular expression.

I am trying to validate the string to m

Answer 1

"[^\s][^\s][^\s]+"
[] contains a character class.
/s is a whitespace character.
^ works kind of like a logical not.
The + catches one or more of the previous character
You may need to add more backslashes depending on any special escape characters