--- a/talks/20091108-Riverside/xypdf-c.tex	Sun Jun 20 11:00:26 2010 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +0,0 @@
-%% xypdf-c.tex from $Id: xypdf-c.doc,v $
-%%
-%% Xy-pic ``Colour extension'' PDF backend support.
-%% Copyright (c) 1999-1999 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) 1991-1999 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.
-%%
-%% As a special exception, you may use this file and all files derived
-%% from it without restrictions. This special exception was added with
-%% version 3.7 of Xy-pic.
-%%
-\expandafter\ifx\csname xypdf-cloaded\endcsname\empty
- \message{not reloaded}\endinput \fi
-\expandafter\let\csname xypdf-cloaded\endcsname=\empty \xycatcodes
-\expandafter\ifx \csname xypdf-sloaded\endcsname\empty\else
- \xyinputorelse@{xypdf-s}{\xyerror@{Could not load xypdf-s}{}}%
- \xycatcodes\fi
-\xydef@\UsePDFcolor{\installPDFcolor@}
-\xydef@\NoPDFcolor{\UnloadColor@}
-\xydef@\installPDFcolor@{\installPDFstyle@
- \let\xymath@=\xyPDFmath@ \let\xynomath@=\xyPDFnomath@
- \let\checkxyPDFcolor@=\checkxyPDFcolor@@
- \let\xycolor@@=\xyPDFcolor@@
- \xystandardcolors@ 
- \xyuncatcodes }
-\xydef@\xyPDFmath@{\hbox\bgroup\dimen@=.55ex \checkxyPDFcolor@ \xyinside@}
-\xydef@\xyPDFnomath@{\hbox\bgroup\dimen@=\z@ \checkxyPDFcolor@ \xyinside@}
-\xydef@\checkxyPDFcolor@@{\edef\pdfsaved@color{\pdfcurrent@color}%
- \let\checkxyPDFcolor@=\relax}
-\xylet@\checkxyPDFcolor@=\relax
-\xydef@\xyPDFnewcolor@#1#2#3#4#5{%
- \expandafter\DN@\expandafter{\csname shape [#1]\endcsname}%
- \DNii@{\relax}\ifx\next@\nextii@\newxycolor{#1}{}\relax\fi
- \DNii@{#4}\ifx\nextii@\empty
- \expandafter\DNii@\expandafter{\csname xyPDFshape@#1@\endcsname}%
- \expandafter\def\nextii@{\xyPDFcolor@{#2//#3}}\else
- \expandafter\DNii@\expandafter{\csname xyPDFshape@#1@\endcsname}%
- \expandafter\def\nextii@{\xyPDFcolor@{#4}}\fi
- \ifx\nextii@\empty\expandafter\def\next@{\xyPDFnotimplemented@@`#1'@@}%
- \else
- \edef\tmp@{\noexpand\let\expandafter\noexpand\next@
- \expandafter\noexpand\nextii@}\expandafter\tmp@\fi }
-\xylet@\newxycolor@=\xyPDFnewcolor@
-\xydef@\xyPDFcolor@{\ifPDFspecials@\expandafter\xyPDFcolor@@
- \else\expandafter\eat@\fi}
-\xydef@\xyPDFcolor@@#1{\bgroup \checkXyStyle@ 
- \def\preStyle@@{\expandafter\addtostyletoks@\expandafter{\xyPDFpre@}}%
- \def\postStyle@@{\expandafter\addtostyletoks@\expandafter{\xyPDFpost@}}%
- \let\modPDFboxz@=\modXYstyle@ \xyPDF@color@@{#1}%
- \toks@={\egroup\let\xy@style@=\relax \def\Drop@@}%
- \expandafter\addtotoks@\expandafter{\expandafter{\Drop@@}\def\Connect@@}%
- \expandafter\addtotoks@\expandafter{\expandafter{\Connect@@}}%
- \the\toks@ }
-
-\xydef@\pdfcurrent@color{1 1 1 1 k 1 1 1 1 K}
-\xydef@\pdfsaved@color{1 1 1 1 k 1 1 1 1 K}
-\xydef@\xyPDF@color@@#1{%
- \edef\pdfsaved@color{\pdfcurrent@color}%
- \pdf@convertcolor#1////!%
- \edef\next@{\noexpand\xyPDFsplitPDF@{\pdfcurrent@color}{\pdfsaved@color}}%
- \next@}
-\xydef@\pdf@convertcolor#1//#2//#3!{\DN@{#2}%
- \DNii@{cmyk}\ifx\next@\nextii@\DN@{#1 k #1 K}%
- \else \DNii@{rgb}\ifx\next@\nextii@\DN@{#1 rg #1 RG}%
- \else \DNii@{gray}\ifx\next@\nextii@\DN@{#1 #1 #1 rg #1 #1 #1 RG}%
- \else \DN@{1 1 1 1 k 1 1 1 1 K}%
- \fi \fi \fi 
- \expandafter\def\expandafter\pdfcurrent@color\expandafter{\next@}}
-\xydef@\xycolor@raw@@#1{}%
-\endinput