Formatting Escapes: Variable escapes

%[=...%] - substitute a variable
%[+...%] - substitute a variable as an SQL string constant
%[,...%] - substitute a variable as an SQL numeric list
%[;...%] - substitute a variable as an SQL string list
%[?...%] - substitute text if a variable was received
%[~...%] - substitute text if a variable was not received
%[*...%] - set a variable
%[#file-name-of#...%] - substitute the name of a file received in a form