[புதன் ஆகஸ்ட் 14, 2024] Eli Zaretskii wrote:

>> From: Visuwesh <visuweshm@gmail.com>
>> Cc: monnier@iro.umontreal.ca,  72405@debbugs.gnu.org,  drew.adams@oracle.com
>> Date: Wed, 14 Aug 2024 12:57:17 +0530
>> 
>> >> Is the attached patch fine?  
>> >
>> > Yes, but please use 'if' rather than 'when'.
>> 
>> Sorry, but I'm confused.  I used 'when' because 
>> 
>>     (concat nil "xxx") ;; => "xxx"
>
> Yes, of course.  But 'if' also returns nil if its condition is false:
>
>   (if (symbolp 1) "symbol")
>    => nil
>
> So you can still use the original code, which uses the above behavior
> of 'concat', after replacing 'when' with 'if' in your original code.
>
> The reason I asked to use 'if' is that there's no reason to use 'when'
> here, as the BODY of 'when' will only ever be a single string.

Ah, I understand now.  I find using 'if' without the else-clause
confusing when glancing at the code so I opted to use 'when'.  Thanks
for taking your time to explain what you meant.  Attached patch replaces
'when' with 'if'.