# [Xy-pic] dvips breaks \newgraphescape in graph feature

Michael Abbott michael@araneidae.co.uk
Sat, 19 Oct 2002 10:32:56 +0000 (GMT)

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\documentclass{article}
\usepackage[dvips,graph]{xy}
\newgraphescape{p}#1{}
\begin{document}
\end{document}

with the same with "dvips," deleted:

\documentclass{article}
\usepackage[graph]{xy}
\newgraphescape{p}#1{}
\begin{document}
\end{document}

The first example produces the following cryptic error message:

...
(/usr/local/TeX/texmf/tex/generic/xypic/xyps-ps.tex
! Illegal parameter number in definition of \xyPSdictknown@.
\DNii@
l.169  \DNii@
{\xywarning@{You did not type Y or N -- try again please}%
?

while the second example is processed just fine.

Presumably the dvips feature is breaking the processing of arguments to
\newgraphescape?  Things *seem* to work ok if I don't try and use
arguments, though I haven't tried very much yet.

Is this a known problem?