Add ability in magic tag parsing to do calculations

[sc0ttkclark]

Add ability in magic tag parsing to do calculations:

{@field_name*other_field} or {@field_name*100}

Including normal math operators for:

• * (multiplication)
• - (division)
• + (addition)
• - (subtraction)
• % (modulus)

[sc0ttkclark]

Updated description

[Shelob9]

This would be very easy to add to Templates once #2317 is complete, as we'd be able to add something like [math field="{@field_name}" operator="*" by="100"] or [math field="{@subtotal}" operator="*" by="{@tax_rate"]

[sc0ttkclark]

I like the magic tag format, keeps things simple and it's super easy to parse, shortcodes require lots of extra typing and magic tags are supposed to be for keeping things short.

[sc0ttkclark]

Also I've already built the logic in another project (@pglewis knows which) so it's not too tough.

[hefejeff]

Has this feature been implemented yet?

[sc0ttkclark]

No, not yet