Matthieu Moy [off-list ref] writes:
quoted
I found all the suggestions very good, except that the distinction
between "expands to" and "is printed" bothers me a bit, as they want
to mean exactly the same thing (imagine this whole thing were inside
another %(if)...%(then)).
True. Then let me try again:
Implement %(if), %(then) and %(else) atoms. Used as
%(if)...%(then)...%(end) or %(if)...%(then)...%(else)...%(end). If the
format string between %(if) and %(then) expands to an empty string, or
to only whitespaces, then the whole %(if)...%(end) expands to the string
following %(then). Otherwise, it expands to the string following
%(else), if any.
Nice. Thanks.