I have a web tool that should allow my users to define their own formulas based on a very limited set of operators: "- + * / -"
some "group operators": "MAX (a, b, c, d) MIN (a, b, c, d) AVG (a, b, c, d) MAX_T (a, b) MIN_T (a, b) AVG_T (a, b) DELTA_T (a, b) "
and brackets are allowed.
Numbers as well as variable names are allowed as operands.
Is there a way to prevent users from using characters not in the set of operators and operands listed above? I do not see anything related to this in the documentation
source
share