[tex-eplain] Error

[Philip Taylor]

Rodolfo Medina wrote:
> Thanks.
>
> \ifcsname turns to be undefined, so I guess you meant:
>
> \def \refn #1%
> {%
> \ifx\csname \xrlabel {#1}\endcsname
> \csname \xrlabel {#1}\endcsname
> \else
> {\tt #1}%
> \fi 
> }
>
> But the output is `no' where it is supposed to be yes...
>
> Thanks,
>
> Rodolfo
>
No, \ifcsname is not undefined (unless you are using pure Knuthian TeX); e-TeX, PdfTeX and XeTeX all support \ifcsname.  And using \ifcsname, my XeTeX test yields "Yes", not "No".  Of course, you have to run it twice to get "Yes" -- e-Plain's cross-referencing requires a minimum of two passes.

** Phil.
-- 

Philip Taylor
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