func roomImageMainVerifier(mSet, sSet []string, mLine, sLine int, roomName, filepath string, cherryRooms *config.CherryRooms) *CherryFileError {
if cherryRooms.HasImage(roomName, mSet[0]) {
return NewCherryFileError(filepath, mLine, "room image \""+mSet[0]+"\" redeclared.")
}
if len(mSet[1]) == 0 {
return NewCherryFileError(filepath, mLine, "unlabeled room image.")
}
if mSet[1][0] != '"' || mSet[1][len(mSet[1])-1] != '"' {
return NewCherryFileError(filepath, mLine, "room image must be set with a valid string.")
}
return nil
}