conditional when using variables

[AnnTerr]

Is there a way to only show the comma if the subject variable is not empty?  This is in my global IPTC template for the description/caption field: {year4} {location}, {subject}

[Kirk Baker]

Is there a way to only show the comma if the subject variable is not empty?  This is in my global IPTC template for the description/caption field: {year4} {location}, {subject}

No, and I'm not sure how I would implement something like that though I'd be open to suggestions on how the user would indicate that the comma is optional, depending on whether the variable that follows it evaluates to something.

-Kirk

[AnnTerr]

Hi Kirk,

I can make do with the existing functionality, although I was hoping for a different answer!

As far as how a user would indicate it, would something like an "IIF" function do?   

IIF( Length( {subject} ) > 0,   ","  ,  ""  ), meaning if the variable {subject} is not a zero length string, then write a "," else write an empty string (or do nothing). 

So in my caption area, with the fake logic above, I would write:  {year4} {location}IIF( Length( {subject} ) > 0,   ","  ,  ""  )      {subject}

Thanks again for your quick reply. 

Ann