Get 'invalid escape sequence '\s'(BCE0649)' error when the regex '^(?!\s*$).+' is used in the ballerina regex:matches function. Can't we use escape character in ballerina regex?
#Getting invalid escape sequence when using escape character in a regex
empty zenith
hollow canyon
To escape you should use \\. See https://lib.ballerina.io/ballerina/regex/1.3.0/functions#matches