# [Xy-pic] bizarre bug

Ross Moore ross at ics.mq.edu.au
Wed Oct 31 02:56:21 CET 2007

Hi Jürgen,

On 31/10/2007, at 11:15 AM, Juergen Koslowski wrote:

> Hello,
>
> In order to mark finite states in automata with double circles I
> defined a macro
>
> \def\rin#1{**{+<3 pt>[o][F]}#1}
>
> to be used in matrices where every node is surrounded by a circle.
>
> Strangely enough, I just found out that in the presence of subscripts
> in the state's name the success of this procedure depends on
> whether the
> subscript is a number or a letter:
>
> $\xymatrix at C+8 pt@*[F]@*[o]@*+<3 pt>{ > \rin q_0 > &\rin q_n > } >$

I don't see any problem when I run this example.

However, you are aware that this type of macro
is rather dangerous. It only works when the \rin
is the first thing in a cell, for verrrrry technical
reasons.

Can you send the output that you get, and the full
document, and its .log file.

Maybe you have some packages loaded (e.g. Babel)
that are causing Xy-pic to behave differently
to when those packages are not loaded.

>
> What's going on here?

Cannot tell, yet.

Hope this helps,

Ross

>
> -- Jürgen
>
> --
> Juergen Koslowski               If I don't see you no more on this
> world
> ITI, TU Braunschweig               I'll meet you on the next one
> koslowj at iti.cs.tu-bs.de               and don't be late!
> http://www.iti.cs.tu-bs.de/~koslowj      Jimi Hendrix (Voodoo
> Child, SR)
> _______________________________________________
> xy-pic mailing list
> http://tug.org/mailman/listinfo/xy-pic

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Ross Moore                                         ross at maths.mq.edu.au
Mathematics Department                             office: E7A-419
Macquarie University                               tel: +61 +2 9850 8955
Sydney, Australia  2109                            fax: +61 +2 9850 8114
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