regexNoSpecialCharacters in order.go does not like a hyphen "-" altough doc says is allowed

[wweghe]

When running the sas-container-recipes, I get this message :
The --docker-namespace argument contains invalid characters. It must contain contain only A-Z, a-z, 0-9, _, ., or -
And my namespace is : sas-sbxwvw.
So either the regexNoSpecialCharacters function in order.go is not correct, or the message should be changed to not allow a "-" (hyphen)

I'm not an regexp specialist but according to https://regex101.com/ this function :
^[_A-z0-9]([_A-z0-9\-\.])$
does not allow sas-sbxwvw, whereas this function :
^[_A-z0-9]([_A-z0-9-.])$
seems to allow sas-sbxwvw

[wweghe]

ok, cut&paste obviously made things worse...
This is the code in the actual container recipes and not working for me :
^[_A-z0-9]*([_A-z0-9\\-\\.]*)$

This is working fine :
^[_A-z0-9]*([_A-z0-9\-\.]*)$

[wweghe]

Hmmm, but running the recipes with this regexp :
^[_A-z0-9]*([_A-z0-9\-\.]*)$ seems to result in an error :
./order.go:457:71: unknown escape sequence
so obviously it's a bit more complicated....