[tex-eplain] Position of optional argument

[Rodolfo Medina]

On Tue, Apr 28, 2009 at 06:41:13PM +0100, Rodolfo Medina wrote:

>> > ...But still, something strange: I can't put the \@optionalarg in
>> > \definexref, and I need to:
>> >
>> > \input /home/rodolfo/macros/eplain-3.2
>> >
>> > \catcode`@=\letter
>> > \def\mymacro#1{%
>> >   \def\temp <at> arg{#1}%
>> >   \@getoptionalarg\@mymacro}
>> >
>> > \def\@mymacro{%
>> >   \ifx\@optionalarg\empty
>> >   \else
>> >     \definexref{\@optionalarg}{label}{}
>> >   \fi
>> >   \temp <at> arg
>> > }
>> >
>> > \mymacro{John}[Mary]
>> >
>> > \bye
>> >
>> >
>> > There are problems, as one can see processing the above example with tex
>> > or pdftex.

>> It seems that the problem disappears when closing \definexref in braces:
>> 
>>  {\definexref{\@optionalarg}{label}{}}



Oleg Katsitadze <olegkat at gmail.com> writes:

>
> Works for me without braces, both with tex and pdftex, and with Eplain
> 3.1 and 3.2.


Strange: same test file, same version of eplain, but different results...  In
my case, without those braces following text is messed up.

Rodolfo