Changing font for one character

[NPN]

I need to change only the '@' in a rule to a different font in an email address. The font used is DIN, which has a weird @, so the customer wants this exchanged with helvetica.

The rule as it is now:

lower =(Field("email").toLowerCase())
return lower

I guess a .replace would work but I don't know the syntax for this case.

[jwhittaker]

Try this
return ReplaceSubstring(Field("Email"),'@', '<span font="Arial">@</span>');

[NPN]

That did indeed work, I changed the font to ='HelveticaNeueLT std Lt' and that also worked fine. Thanks!