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+%% xyxdvi.tex from $Id: xyxdvi.doc,v 3.3 1996/12/18 09:53:22 ross Exp $
+%%
+%% Xy-pic ``xdvi-driver'' option.
+%% Copyright (c) 1995-1996 Ross Moore <ross@mpce.mq.edu.au>
+%%
+%% This file is part of the Xy-pic package for graphs and diagrams in TeX.
+%% See the companion README and INSTALL files for further information.
+%% Copyright (c) 1991-1996 Kristoffer H. Rose <krisrose@brics.dk>
+%%
+%% The Xy-pic package is free software; you can redistribute it and/or modify
+%% it under the terms of the GNU General Public License as published by the
+%% Free Software Foundation; either version 2 of the License, or (at your
+%% option) any later version.
+%%
+%% The Xy-pic package is distributed in the hope that it will be useful, but
+%% WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+%% or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+%% for more details.
+%%
+%% You should have received a copy of the GNU General Public License along
+%% with this package; if not, write to the Free Software Foundation, Inc.,
+%% 675 Mass Ave, Cambridge, MA 02139, USA.
+%%
+\ifx\xyloaded\undefined \input xy \fi
+\xyprovide{xdvi}{XDVI driver}{\stripRCS$Revision: 3.3 $}%
+ {Ross Moore}{ross@mpce.mq.edu.au}%
+ {Mathematics Department, Macquarie University, NSW~2109, Australia}
+\xydef@\xdvi@@#1{\dvimessage@{xdvi}{#1}}
+\newdriver{%
+ \xyaddsupport{color}\xdviColor@@
+ \xyaddsupport{crayon}\xdviCrayola@@
+ \xyaddsupport{ps}\xdviPS@@
+ \xyaddsupport{rotate}\xdviRotate@@
+ \xyaddsupport{line}\xdviLine@@
+ \xyaddsupport{frame}\xdviFrames@@
+ \xyaddsupport{tile}\xdviTiles@@
+ \xyaddsupport{tpic}\xdviTPIC@
+}
+\xydef@\xdvi@Color@{\xdviPStypes@
+ \let\xylocalColor@=\xyNoColor@@
+ \def\xycolor@{\xycolor@@}\let\xycolorwarning@=\relax
+ \expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
+ \xyinputorelse@{xyps-c}{\xydrivernoload@{ps-c}}\installPScolor@ }%
+ \else\DN@{}\fi \next@
+ \ifx\xycolor@@\xyNoColor@ \let\xycolor@@=\xycolor@raw@@\fi
+ \ifx\xycrayolaloaded\empty \DN@{\xystandardcolors@\xdviCrayola@{}}%
+ \else \DN@{\xystandardcolors@}\fi \next@
+ \let\xdviColor@@=\relax
+ \let\UnloadColor@@=\NoXDVIcolor@
+ }%
+\xydef@\xdviColor@@{\xdvi@Color@}
+\xydef@\NoXDVIcolor@{%
+ \def\xycolor@{\xycolor@@}%
+ \let\xycolor@@=\xyNoColor@
+ \let\xylocalColor@=\xyNoColor@@
+ \let\xycolorwarning@=\xycolorwarning@@
+ \let\xdviColor@@=\xdvi@Color@
+ \let\UnloadColor@@=\UnloadColor@
+ }
+\xydef@\NoXDVIcolordvi@{\xywarning@{%
+ Neither colordvi.tex nor colordvi.sty could be found.}%
+ \xyBEcolorcheck@}%
+\xydef@\xdviCrayola@@{\xdviColor@@\xdviCrayola@}
+\xydef@\xdviCrayola@{%
+ \let\prevxycolor@=\newxycolor@
+ \def\newxyXDVIcolor@##1##2##3{\prevxycolor@{##1}{}{##1}}%
+ \let\newxycolor@=\newxyXDVIcolor@
+ \installCrayolaColors@
+ \let\newxycolor@=\prevxycolor@ }%
+\xydef@\xdviPS@@{\xdviPS@}
+\xydef@\xdviPS@unload{\UnloadPS@
+ \let\UnloadPS@@=\UnloadPS@
+ \let\xdviPS@@=\xdviPS@ }
+\xydef@\xdviPStypes@{%
+ \xyinputorelse@{xyps-ps}{\xydrivernoload@{ps-ps}}%
+ \ifx\PSspecial@@\xdviSpecial@\else
+ \let\PSspecial@@=\xdviSpecial@
+ \let\PSmacro@@=\xdviMacro@
+ \let\PSdict@@=\xdviDict@
+ \let\PSspecialdict@@=\xdviDict@
+ \let\PSraw@@=\xdviRaw@
+ \let\PSinclude@@=\xdviInclude@
+ \let\xyPSobeylines@@=\obeyXDVIlines@
+ \let\xyPScurrpt@@=\xdviCurrpt@@
+ \xdvi@@{PostScript}%
+ \fi \XYpredict@ }
+\xywarnifdefined\xdviSpecial@
+\xywarnifdefined\xdviMacro@
+\xywarnifdefined\xdviDict@
+\xywarnifdefined\xdviInclude@
+\xywarnifdefined\xdviRaw@
+{\catcode`\"=11 \catcode`\!=11 \catcode`\:=11
+ \gdef\xdviSpecial@#1{\special{ps:: SDict begin #1 end}}
+ \gdef\xdviMacro@#1{\firstPS@@\special{" {#1}xy}}
+ \gdef\xdviDict@#1{\special{! #1}}
+ \gdef\xdviInclude@#1{\special{header=#1}}
+ \gdef\xdviRaw@#1{\special{ps: SDict begin #1 end}}
+\catcode`\^^M=\active
+ \gdef\next{\catcode`\^^M=\active \let^^M=\space }}%
+\xylet@\obeyXDVIlines@=\next
+\xydef@\xdviCurrpt@{\let\xyPScurrpt@@=\xdviCurrpt@@}%
+\xydef@\xdviCurrpt@@{\PSraw@@{xyp}}
+\xydef@\xdviPS@{\xdviPStypes@
+ \let\xdviPS@@=\PSspecials@true
+ \let\UnloadPS@@=\xdviPS@unload
+ \let\installxyps@@=\relax \installxyps@ }
+\xydef@\xdviRotate@@{\xdviRotate@}
+\xydef@\xdviRotate@{\xdviPStypes@
+ \expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
+ \xyinputorelse@{xyps-r}{\xydrivernoload@{ps-r}}%
+ \xdviCurrpt@ \xdviRotScale@ \installPSrotscale@ }%
+ \else\DN@{\xydriverfail@{rotations are}UnloadRotate@\relax}\fi
+ \next@ }
+\xydef@\xdviRotScale@{%
+ \def\xyrot@start(##1){{xyct ##1\space xyrs }}%
+ \def\xyrot@end{}%
+ \def\xyscale@start(##1,##2){{xyct ##1\space##2\space xyss }}%
+ \def\xyscale@end{}}
+\xydef@\xdviLine@@{\xdviLine@}
+\xydef@\xdviLine@{\xdviPStypes@
+ \expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
+ \xyinputorelse@{xyps-l}{\xydrivernoload@{ps-l}}\installPSline@ }%
+ \else\DN@{\xydriverfail@{line-widths are}\UnloadLine@\relax}\fi
+ \next@ }
+\xydef@\xdviFrames@@{\xdviFrames@}
+\xydef@\xdviFrames@{\xdviPStypes@
+ \expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
+ \xyinputorelse@{xyps-f}{\xydrivernoload@{ps-f}}\installPSframes@ }%
+ \else\DN@{\xydriverfail@{frames are}\UnloadFrames@\relax}\fi
+ \next@ }
+\xydef@\xdviTiles@@{\xdviTiles@}
+\xydef@\xdviTiles@{\xdviPStypes@
+ \expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
+ \xyinputorelse@{xyps-t}{\xydrivernoload@{ps-t}}\installPSpatterns@ }%
+ \else\DN@{\xydriverfail@{Patterns are}\UnloadPSpatterns@\relax}\fi
+ \next@ }
+\xydef@\xdviTPIC@@{\xdviTPIC@}
+\xydef@\xdviTPIC@{\setupxyTPIC@}
+\xyendinput