I have a variable that stores a string. The string contains letters, numbers, underscores and symbols (there is no specific order, and not just once). Now I want to extract the string through regexp(). The extracted string should start with letters, numbers and underscores and end with letters or numbers, but the suffix needs to exclude '_' or '_in' or '_out' or '_out', how can I do that? Thanks.
str_new = regexp(str_old,'[^$^|]\w*_*\w*[^_^_out^_in^_out^_in]','match')
I want to use '^' to exclude string in '[ ]' , but it is distinguish only one letter or another...
str_old = '$abc_in'
str_new = abc
str_old = 'def_in_hij_out'
str_new = 'def_in_hij'
str_old = 'xyz'
str_new = 'xyz'