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% \iffalse meta-comment
%
% Copyright (c) 2006, Lars Kotthoff <metalhead@metalhead.ws>
%
% Large portions copied from pdftex,
% Copyright (c) 2001-3, Radhakrishnan CV <cvr@river-valley.com>
% Rajagopal CV <cvr3@river-valley.com>
% http://www.river-valley.com
%
% River Valley Technologies, Floor III, SJP Buildings, Cotton Hills
% Trivandrum, India 695014
%
% Tel: +91 471 233 7501
%
% Antoine Chambert-Loir
% <chambert@math.polytechnique.fr>
% http://www.math.polytechnique.fr/~chambert
%
% Ecole polytechnique, Palaiseau Cedex, France
%
% This program 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.
%
% This program 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 program (gpl.txt); if not, write to the Free
% Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
% MA 02111-1307, USA.
%
% \fi
%
% \iffalse
%<*driver>
\ProvidesFile{gnuplottex.dtx}
%</driver>
%<package> \NeedsTeXFormat{LaTeX2e}[1999/12/01]
%<package> \ProvidesPackage{gnuplottex}
%<*package>
[2006/10/28 v0.2 gnuplot graphs in LaTeX]
\RequirePackage{latexsym,graphicx,moreverb,keyval}
%</package>
%
%<*driver>
\documentclass{ltxdoc}
\usepackage{gnuplottex}
\EnableCrossrefs
\CodelineIndex
\RecordChanges
\begin{document}
\DocInput{gnuplottex.dtx}
\PrintChanges
\PrintIndex
\end{document}
%</driver>
% \fi
%
% \CheckSum{164}
%
% \CharacterTable
% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
% Digits \0\1\2\3\4\5\6\7\8\9
% Exclamation \! Double quote \" Hash (number) \#
% Dollar \$ Percent \% Ampersand \&
% Acute accent \' Left paren \( Right paren \)
% Asterisk \* Plus \+ Comma \,
% Minus \- Point \. Solidus \/
% Colon \: Semicolon \; Less than \<
% Equals \= Greater than \> Question mark \?
% Commercial at \@ Left bracket \[ Backslash \\
% Right bracket \] Circumflex \^ Underscore \_
% Grave accent \` Left brace \{ Vertical bar \|
% Right brace \} Tilde \~}
%
%
% \changes{v0.1}{2006/04/02}{Initial version.}
% \changes{v0.2}{2006/10/28}{Changed gnuplot output to LaTeX, simplified code.}
%
% \GetFileInfo{gnuplottex.dtx}
%
% \DoNotIndex{\the,\year,\month,\day,\time}
%
% \title{The \textsf{gnuplottex} package\thanks{This document
% corresponds to \textsf{gnuplottex}~\fileversion, dated \filedate.}}
% \author{Lars Kotthoff\\ \texttt{metalhead@metalhead.ws}}
%
% \maketitle
%
% \section{Introduction}
%
% This package allows you to include gnuplot graphs in your \LaTeX{} documents.
%
% The gnuplot code is extracted from the document and written to
% \texttt{.gnuplot}
% files. Then, if shell escape is used, the graph files are automatically
% processed and converted to LaTeX files, which will then be included. If
% shell escape isn't used, the user will have to manually convert the
% files by running gnuplot on the extracted .gnuplot files.
%
% Shell escape is available in the web2c \TeX{} compiler, it allows the execution
% of shell code during the compilation of a \TeX{} document. It's disabled by
% default, you'll have to edit your configuration files or give the
% \texttt{-shell-escape} option to \texttt{latex}.
%
% \section{Requirements}
%
% To use gnuplottex, you'll need the \texttt{graphicx}, \texttt{latexsym},
% \texttt{keyval} and \texttt{moreverb} packages and, of course, gnuplot.
%
% \section{Usage}
%
% To load the package, simply \verb=\usepackage{gnuplottex}= in your document
% preamble. Options that can be passed to the package are
% \begin{description}
% \item[\oarg{shell}] Use shell escape to automatically generate the graphs
% from the gnuplot source files. This is the default.
% \item[\oarg{noshell}] Don't use shell escape, graphs must be generated
% manually.
% \item[\oarg{miktex}] We're using mikTeX.
% \end{description}
%
% The following environments can be used to include graphs:
%
% \DescribeEnv{gnuplot}
% Within this environment, you can specify arbitrary gnuplot code, for example\\
% \texttt{plot sin(x)}.\\
% The code necessary to write the plot to a file will be inserted by this
% package.
%
% You may specify a scaling factor for the graphs by adding the parameter after
% the beginning of the environment, like so:
% \verb=\begin{gnuplottex}=[scale=\meta{scale}]
%
% \StopEventually{}
%
% \section{Implementation}
%
% \subsection{Initialization}
% \begin{macrocode}
\newif\ifShellEscape
\newif\ifmiktex \miktexfalse
\DeclareOption{shell}{\ShellEscapetrue}
\DeclareOption{noshell}{\ShellEscapefalse}
\DeclareOption{miktex}{\global\miktextrue}
\ExecuteOptions{shell}
\ProcessOptions\relax
%% test if shell escape really works
\ifShellEscape
\def\tmpfile{/tmp/w18-test-\the\year\the\month\the\day\the\time}
\ifmiktex
\immediate\write18{rem >"\tmpfile"}
\else
\immediate\write18{touch \tmpfile}
\fi
\ifmiktex
\IfFileExists{\tmpfile.}{\ShellEscapetrue}{\ShellEscapefalse}
\else
\IfFileExists{\tmpfile}{\ShellEscapetrue}{\ShellEscapefalse}
\fi
\fi
\ifShellEscape
\PackageInfo{gnuplottex}
{Automatically converting gnuplot files.}
\else
\PackageWarningNoLine{gnuplottex}
{Shell escape not enabled.\MessageBreak
You'll need to convert the graphs yourself.}
\fi
\newcounter{fignum}
% \end{macrocode}
%
% \subsection{\texttt{.gnuplot} write out}
% \begin{macrocode}
\def\figname{\jobname-gnuplottex-fig\thefignum}
\def\gnuplotverbatimwrite#1{%
\def\BeforeStream
{\message{Opening gnuplot stream #1}%
\immediate\write\verbatim@out{\string set terminal latex}
\immediate\write\verbatim@out{\string set output '\figname.tex'}
}
\@bsphack
\immediate\openout \verbatim@out #1
\BeforeStream%
\let\do\@makeother\dospecials
\catcode`\^^M\active
\def\verbatim@processline{%
\immediate\write\verbatim@out
{\the\verbatim@line}}%
\verbatim@start}
\def\endgnuplotverbatimwrite{%
\immediate\closeout\verbatim@out
\@esphack
\catcode`\\0
\catcode`\{1
\catcode`\}2
\catcode`\$3
\catcode`\&4
\catcode`\^^M5
\catcode`\#6
\catcode`\^7
\catcode`\_8
\catcode`\ 10
\catcode`\%14}
% \end{macrocode}
%
% \subsection{Environment definition}
% \begin{macrocode}
\define@key{pic}{scale}{\def\gnuplotscale{#1}}
\newenvironment{gnuplot}[1][]{\stepcounter{fignum}%
\def\gnuplotscale{1}
\setkeys{pic}{#1}
\xdef\gnuplotCutFile{\figname.gnuplot}
\gnuplotverbatimwrite{\gnuplotCutFile}}
{\endgnuplotverbatimwrite%
\gnuplotgraphicsinclude}
% \end{macrocode}
%
% \subsection{\texttt{.gnuplot} file processing}
% \begin{macrocode}
\long\gdef\gnuplotgraphicsprocess{%
\ifShellEscape
\IfFileExists{\figname.gnuplot}{%
\immediate\write18{gnuplot \figname.gnuplot}
\IfFileExists{\figname.tex}{%
\PackageInfo{gnuplottex}
{\figname.gnuplot converted}}
{\PackageWarningNoLine{gnuplottex}
{Conversion of \figname.gnuplot failed.}}}{}
\fi}
% \end{macrocode}
%
% \subsection{Graph inclusion}
% \begin{macrocode}
\long\gdef\gnuplotgraphicsinclude{\gnuplotgraphicsprocess%
\IfFileExists{\figname.tex}{%
\scalebox{\gnuplotscale}{\input{\figname}}}
{\PackageWarningNoLine{gnuplottex}
{Please convert \figname.gnuplot manually}}
}
% \end{macrocode}
%
% \Finale
\endinput
|
