Complex Expression Examples

Numeric Functions:

Let>r={round(34.6)}

Let>ans={cos(340)}

Using numeric variables in complex expressions we enclose variables in % symbols:

Let>r=34.6

Let>r={round(%r%)}

String Functions:

In Complex expressions string literals must be enclosed in double quotes (").  Variables are just enclosed with % symbols:

Let>email=fred@someserver.com

Let>at={Pos("@",%email%)}

Here at equals 5 as it is the 5th character in fred@someserver.com

Let's now use the copy function to extract everything before the @ sign:

Let>namepart={copy(%email%,1,%at%-1)}

Conditional Functions:

Let>email=fred@someserver.com

Let>IsItAnEmail={if(pos("@",%email%)>0,"yes","no")}

Of course we could do:

Let>email=fred@someserver.com

Let>at={Pos("@",%email%)}

Let>IsItAnEmail={if(%at%>0,"yes","no")}

Here IsItAnEmail would be set to "yes".