summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/doc/generic/epsf
diff options
context:
space:
mode:
authorKarl Berry <karl@freefriends.org>2010-02-25 00:32:34 +0000
committerKarl Berry <karl@freefriends.org>2010-02-25 00:32:34 +0000
commit31a25c019c2e445333c0f64dba0259b3dd17b9f0 (patch)
tree6572cc8df090767c3f640ffc1d3c87b4835f8a0e /Master/texmf-dist/doc/generic/epsf
parentd20a35d795195f0945a1203cef4564e9f1b4a31d (diff)
epsf doc update (24feb10)
git-svn-id: svn://tug.org/texlive/trunk@17190 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/doc/generic/epsf')
-rw-r--r--Master/texmf-dist/doc/generic/epsf/epsf-doc.pdfbin0 -> 267725 bytes
-rw-r--r--Master/texmf-dist/doc/generic/epsf/epsf-doc.tex659
2 files changed, 659 insertions, 0 deletions
diff --git a/Master/texmf-dist/doc/generic/epsf/epsf-doc.pdf b/Master/texmf-dist/doc/generic/epsf/epsf-doc.pdf
new file mode 100644
index 00000000000..6d2ac5e85b0
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/epsf/epsf-doc.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/generic/epsf/epsf-doc.tex b/Master/texmf-dist/doc/generic/epsf/epsf-doc.tex
new file mode 100644
index 00000000000..54074e4b5b6
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/epsf/epsf-doc.tex
@@ -0,0 +1,659 @@
+\documentclass[DIV=9, pagesize=auto]{scrartcl}
+
+\usepackage{fixltx2e}
+\usepackage{etex}
+\usepackage{xspace}
+\usepackage{lmodern}
+\usepackage[T1]{fontenc}
+\usepackage{textcomp}
+\usepackage{microtype}
+\usepackage[unicode=true]{hyperref}
+
+\newcommand*{\mail}[1]{\href{mailto:#1}{\texttt{#1}}}
+\newcommand*{\Mail}[1]{\href{mailto:#1}{\texttt{<#1>}}}
+\newcommand*{\pkg}[1]{\textsf{#1}}
+\newcommand*{\cs}[1]{\texttt{\textbackslash#1}}
+\makeatletter
+\newcommand*{\cmd}[1]{\cs{\expandafter\@gobble\string#1}}
+\makeatother
+\newcommand*{\env}[1]{\texttt{#1}}
+\newcommand*{\opt}[1]{\texttt{#1}}
+\newcommand*{\meta}[1]{\textlangle\textsl{#1}\textrangle}
+\newcommand*{\marg}[1]{\texttt{\{}\meta{#1}\texttt{\}}}
+\newcommand*{\Beebe}{Nelson H. F. Beebe \Mail{beebe@math.utah.edu}\xspace}
+
+\addtokomafont{title}{\rmfamily}
+
+\title{The \pkg{epsf} package\thanks{This manual corresponds to \pkg{epsf}~v2.7.3, dated~23 July 2005.}}
+\author{Tom Rokicki\\\mail{rokicki@cs.stanford.edu}}
+\date{23 July 2005}
+
+
+\begin{document}
+
+\maketitle
+
+\noindent
+This file contains \TeX\ macros to include an
+Encapsulated PostScript graphic. It works
+by finding the bounding box comment,
+calculating the correct scale values, and
+inserting a vbox of the appropriate size at
+the current position in the \TeX\ document.
+
+To use, simply use
+%
+\begin{verbatim}
+\input epsf % somewhere early on in your TeX file
+
+% then where you want to insert a vbox for a figure:
+\epsfbox{filename.ps}
+\end{verbatim}
+
+Alternatively, you can supply your own
+bounding box by
+%
+\begin{verbatim}
+\epsfbox[0 0 30 50]{filename.ps}
+\end{verbatim}
+%
+This will not read in the file, and will
+instead use the bounding box you specify.
+
+The effect will be to typeset the figure as
+a \TeX\ box, at the point of your \cmd{\epsfbox}
+command. By default, the graphic will have
+its `natural' width (namely the width of
+its bounding box, as described in
+\texttt{filename.ps}). The \TeX\ box will have depth
+zero.
+
+You can enlarge or reduce the figure by
+using\\
+\cmd{\epsfxsize\ = }\meta{dimen} \cmd{\epsfbox}\marg{filename.ps}\\
+or\\
+\cmd{\epsfysize\ = }\meta{dimen} \cmd{\epsfbox}\marg{filename.ps}\\
+instead. Then the width of the \TeX\ box will
+be \cmd{\epsfxsize} and its height will be scaled
+proportionately (or the height will be
+\cmd{\epsfysize} and its width will be scaled
+proportionately).
+
+The width (and height) is restored to zero
+after each use, so \cmd{\epsfxsize} or \cmd{\epsfysize}
+must be specified before \emph{each} use of
+\cmd{\epsfbox}.
+
+A more general facility for sizing is
+available by defining the \cmd{\epsfsize} macro.
+Normally you can redefine this macro to do
+almost anything. The first parameter is
+the natural $x$~size of the PostScript
+graphic, the second parameter is the
+natural $y$~size of the PostScript graphic.
+It must return the xsize to use, or 0 if
+natural scaling is to be used. Common uses
+include:
+%
+\begin{verbatim}
+ \epsfxsize % just leave the old value alone
+ 0pt % use the natural sizes
+ #1 % use the natural sizes
+ \hsize % scale to full width
+ 0.5#1 % scale to 50% of natural size
+ \ifnum #1 > \hsize \hsize \else #1\fi
+ % smaller of natural, hsize
+\end{verbatim}
+
+If you want \TeX\ to report the size of the
+figure (as a message on your terminal when
+it processes each figure), use
+`\cmd{\epsfverbosetrue'}.
+
+If you only want to get the bounding box
+extents, without producing any output boxes
+or \verb+\special{}+, then use \cmd{\epsfgetbb}\marg{filename}.
+The bounding box corner coordinates are saved
+in the macros \cmd{\epsfllx}, \cmd{\epsflly}, \cmd{\epsfurx},
+and \cmd{\epsfury} in PostScript units of big
+points.
+
+
+\section*{Revision history:}
+
+\begin{itemize}
+\item \texttt{epsf.tex} macro file:
+ Originally written by Tomas Rokicki of
+ Radical Eye Software, 29 Mar 1989.
+
+\item Revised by Don Knuth, 3 Jan 1990.
+
+\item Revised by Tomas Rokicki, 18 Jul 1990.
+
+ Accept bounding boxes with no space after
+ the colon.
+
+\item Revised by \Beebe, 03 Dec 1991 [2.0].
+
+ Add version number and date typeout.
+
+ Use \verb+\immediate\write16+ instead of \cmd{\message}
+ to ensure output on new line.
+
+ Handle nested EPS files.
+
+ Handle \verb+%%BoundingBox: (atend)+ lines.
+
+ Do not quit when blank lines are found.
+
+ Add a few percents to remove generation of
+ spurious blank space.
+
+ Move \cmd{\special} output to
+ \cmd{\epsfspecial}\marg{filename} so that other macro
+ packages can input this one, then change
+ the definition of \cmd{\epsfspecial} to match
+ another DVI driver.
+
+ Move size computation to \cmd{\epsfsetsize} which
+ can be called by the user; the verbose
+ output of the bounding box and scaled width
+ and height happens here.
+
+\item Revised by \Beebe, 05 May 1992 [2.1].
+
+ \begin{sloppypar}
+ Wrap \verb+\leavevmode\hbox{}+ around \verb+\vbox{}+ with
+ the \cmd{\special} so that \verb+\epsffile{}+ can be
+ used inside \verb+\begin{center}...\end{center}+
+ \end{sloppypar}
+
+\item Revised by \Beebe, 09 Dec 1992 [2.2].
+
+ Introduce \cmd{\epsfshow\{true,false\}} and
+ \cmd{\epsfframe\{true,false\}} macros; the latter
+ suppresses the insertion of the PostScript,
+ and instead just creates an empty box,
+ which may be handy for rapid prototyping.
+
+\item Revised by \Beebe, 14 Dec 1992 [2.3].
+
+ Add \cmd{\epsfshowfilename\{true,false\}}. When
+ \texttt{true}, and \cmd{\epsfshowfalse} is specified, the
+ PostScript file name will be displayed
+ centered in the figure box.
+
+\item Revised by \Beebe, 20 June 1993 [2.4].
+
+ Remove non-zero debug setting of \cmd{\epsfframemargin},
+ and change margin handling to preserve EPS image
+ size and aspect ratio, so that the actual
+ box is $\cmd{\epsfxsize}+\cmd{\epsfframemargin}$ wide by
+ $\cmd{\epsfysize}+\cmd{\epsfframemargin}$ high.
+ Reduce output of \cmd{\epsfshowfilenametrue} to
+ just the bare file name.
+
+\item Revised by \Beebe, 13 July 1993 [2.5].
+
+ Add \cmd{\epsfframethickness} for control of
+ \cmd{\epsfframe} frame lines.
+
+\item Revised by \Beebe, 02 July 1996 [2.6]
+
+ Add missing initialization \cmd{\epsfatendfalse};
+ the lack of this resulted in the wrong
+ \texttt{BoundingBox} being picked up, mea culpa, sigh\ldots
+
+\item Revised by \Beebe, 25 October 1996 [2.7]
+
+ Update to match changes in from dvips~5-600
+ distribution: new user-accessible macros:
+ \cmd{\epsfclipon}, \cmd{\epsfclipoff}, \cmd{\epsfdrafton},
+ \cmd{\epsfdraftoff}, change \cmd{\empty} to \cmd{\epsfempty}.
+
+\item Revised by \Beebe, 18 May 2002 [2.7.1]
+
+ Add write statements to echo input file
+ names. Prior to that change, an error in
+ such a file could be quite hard to track
+ down: a long list of \TeX\ page numbers could
+ suddenly be followed by ``\TeX\ buffer
+ capacity'' exceeded, without any indication
+ of the file that was responsible.
+
+\item Revised by \Beebe, 16 May 2003 [2.7.2]
+
+ Supply two critical percent characters that
+ were mistakenly omitted in version~2.7.1,
+ and resulted in a small amount of spurious
+ horizontal space.
+
+\item Revised by \Beebe,\\ Karl Berry
+ \Mail{karl@freefriends.org},\\ and Robin Fairbairns
+ \Mail{Robin.Fairbairns@cl.cam.ac.uk},\\
+ 23 July 2005 [2.7.3]
+
+ Add critical \verb+\hbox{}+ wrapper in \cmd{\epsfsetgraph}
+ so that \verb+\epsfbox{}+ does not conflict with
+ \LaTeX\ \env{center} environment when \verb+\epsfbox{}+ is
+ surrounded by other horizonal objects.
+ Improve macro readability by adding legal,
+ but invisible-in-typeset-output, spaces.
+ Ensure that verbose status reports come
+ inside \verb+(filename ...)+ list.
+
+\end{itemize}
+
+\end{document}
+
+
+
+
+---------------------------------------------
+
+---------------------------------------------
+
+---------------------------------------------
+
+---------------------------------------------
+
+%%% }
+%%% ====================================================================
+
+%\immediate \write16 {This is `epsf.tex' v2.0 <02 Dec 1991>}%
+%\immediate \write16 {This is `epsf.tex' v2.1 <05 May 1992>}%
+%\immediate \write16 {This is `epsf.tex' v2.2 <09 Dec 1992>}%
+%\immediate \write16 {This is `epsf.tex' v2.3 <14 Dec 1992>}%
+%\immediate \write16 {This is `epsf.tex' v2.4 <20 June 1993>}%
+%\immediate \write16 {This is `epsf.tex' v2.5 <13 July 1993>}%
+%\immediate \write16 {This is `epsf.tex' v2.6 <02 July 1996>}%
+%\immediate \write16 {This is `epsf.tex' v2.7 <25 October 1996>}%
+%\immediate \write16 {This is `epsf.tex' v2.7.1 <18 May 2002>}%
+%\immediate \write16 {This is `epsf.tex' v2.7.2 <16 May 2003>}%
+\immediate \write16 {This is `epsf.tex' v2.7.3 <23 July 2005>}%
+%
+\newread \epsffilein % file to \read
+\newif \ifepsfatend % need to scan to LAST %%BoundingBox comment?
+\newif \ifepsfbbfound % success?
+\newif \ifepsfdraft % use draft mode?
+\newif \ifepsffileok % continue looking for the bounding box?
+\newif \ifepsfframe % frame the bounding box?
+\newif \ifepsfshow % show PostScript file, or just bounding box?
+\epsfshowtrue % default is to display PostScript file
+\newif \ifepsfshowfilename % show the file name if \epsfshowfalse specified?
+\newif \ifepsfverbose % report what you're making?
+\newdimen \epsfframemargin % margin between box and frame
+\newdimen \epsfframethickness % thickness of frame rules
+\newdimen \epsfrsize % vertical size before scaling
+\newdimen \epsftmp % register for arithmetic manipulation
+\newdimen \epsftsize % horizontal size before scaling
+\newdimen \epsfxsize % horizontal size after scaling
+\newdimen \epsfysize % vertical size after scaling
+\newdimen \pspoints % conversion factor
+%
+\pspoints = 1bp % Adobe points are `big'
+\epsfxsize = 0pt % default value, means `use natural size'
+\epsfysize = 0pt % ditto
+\epsfframemargin = 0pt % default value: frame box flush around picture
+\epsfframethickness = 0.4pt % TeX's default rule thickness
+%
+\def \epsfbox #1{%
+ \global \def \epsfllx {72}%
+ \global \def \epsflly {72}%
+ \global \def \epsfurx {540}%
+ \global \def \epsfury {720}%
+ \def \lbracket {[}%
+ \def \testit {#1}%
+ \ifx \testit \lbracket
+ \let \next = \epsfgetlitbb
+ \else
+ \let \next = \epsfnormal
+ \fi
+ \next{#1}%
+}%
+%
+% We use \epsfgetlitbb if the user specified an explicit bounding box,
+% and \epsfnormal otherwise. Because \epsfgetbb can be called
+% separately to retrieve the bounding box, we move the verbose
+% printing the bounding box extents and size on the terminal to
+% \epsfstatus. Therefore, when the user provided the bounding box,
+% \epsfgetbb will not be called, so we must call \epsfsetsize and
+% \epsfstatus ourselves.
+%
+\def \epsfgetlitbb #1#2 #3 #4 #5]#6{%
+ \epsfgrab #2 #3 #4 #5 .\\%
+ \epsfsetsize
+ \epsfstatus{#6}%
+ \epsfsetgraph{#6}%
+}%
+%
+\def \epsfnormal #1{%
+ \epsfgetbb{#1}%
+ \epsfsetgraph{#1}%
+}%
+%
+\def \epsfgetbb #1{%
+%
+% The first thing we need to do is to open the
+% PostScript file, if possible.
+%
+ \openin\epsffilein=#1
+ \immediate \write16 {(#1}%
+ \ifeof \epsffilein
+ \errmessage{Could not open file #1, ignoring it}%
+ \else %process the file
+ {% %start a group to contain catcode changes
+ % Make all special characters, except space, to be of type
+ % `other' so we process the file in almost verbatim mode
+ % (TeXbook, p. 344).
+ \chardef \other = 12%
+ \def \do ##1{\catcode`##1=\other}%
+ \dospecials
+ \catcode `\ = 10%
+ \epsffileoktrue %true while we are looping
+ \epsfatendfalse %[02-Jul-1996]: add forgotten initialization
+ \loop %reading lines from the EPS file
+ \read \epsffilein to \epsffileline
+ \ifeof \epsffilein %then no more input
+ \epsffileokfalse %so set completion flag
+ \else %otherwise process one line
+ \expandafter \epsfaux \epsffileline :. \\%
+ \fi
+ \ifepsffileok
+ \repeat
+ \ifepsfbbfound
+ \else
+ \ifepsfverbose
+ \immediate \write16 {No BoundingBox comment found in %
+ file #1; using defaults}%
+ \fi
+ \fi
+ }% %end catcode changes
+ \closein\epsffilein
+ \fi %end of file processing
+ \epsfsetsize %compute size parameters
+ \epsfstatus{#1}%
+ \immediate \write16 {)}%
+}%
+%
+% Clipping control:
+\def \epsfclipon {\def \epsfclipstring { clip}}%
+\def \epsfclipoff {\def \epsfclipstring {\ifepsfdraft \space clip\fi}}%
+\epsfclipoff % default for dvips is OFF
+%
+% The special that is emitted by \epsfsetgraph comes from this macro.
+% It is defined separately to allow easy customization by other
+% packages that first \input epsf.tex, then redefine \epsfspecial.
+% This macro is invoked in the lower-left corner of a box of the
+% width and height determined from the arguments to \epsffile, or
+% from the %%BoundingBox in the EPS file itself.
+%
+% This version is for dvips:
+\def \epsfspecial #1{%
+ \epsftmp=10\epsfxsize
+ \divide \epsftmp by \pspoints
+ \ifnum \epsfrsize = 0%
+ \relax
+ \special{PSfile=\ifepsfdraft psdraft.ps\else#1\fi\space
+ llx=\epsfllx\space
+ lly=\epsflly\space
+ urx=\epsfurx\space
+ ury=\epsfury\space
+ rwi=\number\epsftmp
+ \epsfclipstring
+ }%
+ \else
+ \epsfrsize=10\epsfysize
+ \divide \epsfrsize by \pspoints
+ \special{PSfile=\ifepsfdraft psdraft.ps\else#1\fi\space
+ llx=\epsfllx\space
+ lly=\epsflly\space
+ urx=\epsfurx\space
+ ury=\epsfury\space
+ rwi=\number\epsftmp
+ rhi=\number\epsfrsize
+ \epsfclipstring
+ }%
+ \fi
+}%
+%
+% \epsfframe macro adapted from the TeXbook, exercise 21.3, p. 223, 331.
+% but modified to set the box width to the natural width, rather
+% than the line width, and to include space for margins and rules
+\def \epsfframe #1%
+{%
+ % method for detecting latex suggested by Robin Fairbairns, May 2005.
+ \ifx \documentstyle \epsfundefined
+ \relax
+ \else
+% \leavevmode % so we can put this inside
+ % a latex centered environment
+ % The \leavevmode breaks under plain when this is inside a box,
+ % because it forces the figure to be the entire \hsize. On the
+ % other hand, we need the \leavevmode for it to work in LaTeX,
+ % because the {center} environment works by adjusting TeX's
+ % paragraph parameters.
+ %
+ % Compare the LaTeX sequence
+ % \begin{center}
+ % \epsfbox{tip.eps}q
+ % \end{center}
+ % (needs the \leavevmode to put the q right next to the image)
+ %
+ % with the plain TeX sequence:
+ % \leftline{\vbox{\epsfbox{tip.eps}}q}
+ % (had the q all the way over to the right, when \leavevmode was used)
+ \fi
+ %
+ \setbox0 = \hbox{#1}%
+ \dimen0 = \wd0 % natural width of argument
+ \advance \dimen0 by 2\epsfframemargin % plus width of 2 margins
+ \advance \dimen0 by 2\epsfframethickness % plus width of 2 rule lines
+ \relax
+ \hbox{%
+ \vbox
+ {%
+ \hrule height \epsfframethickness depth 0pt
+ \hbox to \dimen0
+ {%
+ \hss
+ \vrule width \epsfframethickness
+ \kern \epsfframemargin
+ \vbox {\kern \epsfframemargin \box0 \kern \epsfframemargin }%
+ \kern \epsfframemargin
+ \vrule width \epsfframethickness
+ \hss
+ }% end hbox
+ \hrule height 0pt depth \epsfframethickness
+ }% end vbox
+ }% end hbox
+ \relax
+}%
+%
+\def \epsfsetgraph #1%
+{%
+ %
+ % Make the vbox and stick in a \special that the DVI driver can
+ % parse. \vfil and \hfil are used to place the \special origin at
+ % the lower-left corner of the vbox. \epsfspecial can be redefined
+ % to produce alternate \special syntaxes.
+ %
+ \ifvmode \leavevmode \fi
+ \relax
+ \hbox{% so we can put this in \begin{center}...\end{center}
+ \ifepsfframe \expandafter \epsfframe \fi
+ {\vbox to\epsfysize
+ {%
+ \ifepsfshow
+ % output \special{} at lower-left corner of figure box
+ \vfil
+ \hbox to \epsfxsize{\epsfspecial{#1}\hfil}%
+ \else
+ \vfil
+ \hbox to\epsfxsize{%
+ \hss
+ \ifepsfshowfilename
+ {%
+ \epsfframemargin=3pt % local change of margin
+ \epsfframe{{\tt #1}}%
+ }%
+ \fi
+ \hss
+ }%
+ \vfil
+ \fi
+ }%
+ }}%
+ \relax
+ %
+ % Reset \epsfxsize and \epsfysize, as documented above.
+ %
+ \global \epsfxsize = 0pt
+ \global \epsfysize = 0pt
+}%
+%
+% Now we have to calculate the scale and offset values to use.
+% First we compute the natural sizes.
+%
+\def \epsfsetsize
+{%
+ \epsfrsize = \epsfury \pspoints
+ \advance \epsfrsize by -\epsflly \pspoints
+ \epsftsize = \epsfurx \pspoints
+ \advance \epsftsize by -\epsfllx \pspoints
+%
+% If `epsfxsize' is 0, we default to the natural size of the picture.
+% Otherwise we scale the graph to be \epsfxsize wide.
+%
+ \epsfxsize = \epsfsize{\epsftsize}{\epsfrsize}%
+ \ifnum \epsfxsize = 0
+ \ifnum \epsfysize = 0
+ \epsfxsize = \epsftsize
+ \epsfysize = \epsfrsize
+ \epsfrsize = 0pt
+%
+% We have a sticky problem here: TeX doesn't do floating point arithmetic!
+% Our goal is to compute y = rx/t. The following loop does this reasonably
+% fast, with an error of at most about 16 sp (about 1/4000 pt).
+%
+ \else
+ \epsftmp = \epsftsize
+ \divide \epsftmp by \epsfrsize
+ \epsfxsize = \epsfysize
+ \multiply \epsfxsize by \epsftmp
+ \multiply \epsftmp by \epsfrsize
+ \advance \epsftsize by -\epsftmp
+ \epsftmp = \epsfysize
+ \loop
+ \advance \epsftsize by \epsftsize
+ \divide \epsftmp by 2
+ \ifnum \epsftmp > 0
+ \ifnum \epsftsize < \epsfrsize
+ \else
+ \advance \epsftsize -\epsfrsize
+ \advance \epsfxsize \epsftmp
+ \fi
+ \repeat
+ \epsfrsize = 0pt
+ \fi
+ \else
+ \ifnum \epsfysize = 0
+ \epsftmp = \epsfrsize
+ \divide \epsftmp by \epsftsize
+ \epsfysize = \epsfxsize
+ \multiply \epsfysize by \epsftmp
+ \multiply \epsftmp by \epsftsize
+ \advance \epsfrsize by -\epsftmp
+ \epsftmp = \epsfxsize
+ \loop
+ \advance \epsfrsize by \epsfrsize
+ \divide \epsftmp by 2
+ \ifnum \epsftmp > 0
+ \ifnum \epsfrsize < \epsftsize
+ \else
+ \advance \epsfrsize by -\epsftsize
+ \advance \epsfysize by \epsftmp
+ \fi
+ \repeat
+ \epsfrsize = 0pt
+ \else
+ \epsfrsize = \epsfysize
+ \fi
+ \fi
+}%
+%
+% Issue some status messages if the user requested them
+%
+\def \epsfstatus #1{% arg = filename
+ \ifepsfverbose
+ \immediate \write16 {#1: BoundingBox:
+ llx = \epsfllx \space lly = \epsflly \space
+ urx = \epsfurx \space ury = \epsfury \space}%
+ \immediate \write16 {#1: scaled width = \the\epsfxsize \space
+ scaled height = \the\epsfysize}%
+ \fi
+}%
+%
+% We still need to define the tricky \epsfaux macro. This requires
+% a couple of magic constants for comparison purposes.
+%
+{\catcode`\%=12 \global \let \epsfpercent=%\global \def \epsfbblit {%BoundingBox}}%
+\global \def \epsfatend{(atend)}%
+%
+% So we're ready to check for `%BoundingBox:' and to grab the
+% values if they are found.
+%
+% If we find a line
+%
+% %%BoundingBox: (atend)
+%
+% then we ignore it, but set a flag to force parsing all of the
+% file, so the last %%BoundingBox parsed will be the one used. This
+% is necessary, because EPS files can themselves contain other EPS
+% files with their own %%BoundingBox comments.
+%
+% If we find a line
+%
+% %%BoundingBox: llx lly urx ury
+%
+% then we save the 4 values in \epsfllx, \epsflly, \epsfurx, \epsfury.
+% Then, if we have not previously parsed an (atend), we flag completion
+% and can stop reading the file. Otherwise, we must keep on reading
+% to end of file so that we find the values on the LAST %%BoundingBox.
+\long \def \epsfaux#1#2:#3\\%
+{%
+ \def \testit {#2}% % save second character up to just before colon
+ \ifx#1\epsfpercent % then first char is percent (quick test)
+ \ifx \testit \epsfbblit % then (slow test) we have %%BoundingBox
+ \epsfgrab #3 . . . \\%
+ \ifx \epsfllx\epsfatend % then ignore %%BoundingBox: (atend)
+ \global \epsfatendtrue
+ \else % else found %%BoundingBox: llx lly urx ury
+ \ifepsfatend % then keep parsing ALL %%BoundingBox lines
+ \else % else stop after first one parsed
+ \epsffileokfalse
+ \fi
+ \global \epsfbbfoundtrue
+ \fi
+ \fi
+ \fi
+}%
+%
+% Here we grab the values and stuff them in the appropriate definitions.
+%
+\def \epsfempty {}%
+\def \epsfgrab #1 #2 #3 #4 #5\\{%
+ \global \def \epsfllx {#1}\ifx \epsfllx\epsfempty
+ \epsfgrab #2 #3 #4 #5 .\\\else
+ \global \def \epsflly {#2}%
+ \global \def \epsfurx {#3}\global \def \epsfury {#4}\fi
+}%
+%
+% We default the epsfsize macro.
+%
+\def \epsfsize #1#2{\epsfxsize}%
+%
+% Finally, another definition for compatibility with older macros.
+%
+\let \epsffile = \epsfbox
+\endinput