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|
% +--------------------------------------------------+
% | Documentation in clear text follows |
% +--------------------------------------------------+
%
%% Copyright (C) 2009 Javier Bezos
%% All Rights Reserved
%% http://www.tex-tipografia.com
%%
%% This work may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3 of this
%% license or (at your option) any later version. The latest version
%% of this license is in
%% http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2003/12/01 or later.
%%
%% This work has the LPPL maintenance status "maintained".
%%
%% This Current Maintainer of this work is Javier Bezos.
%%
%% This work consists of this file.
%
% Usage
% ~~~~~
%
% This is a tentative package aiming to provide a different approach
% for multidocument works (mainly, books with a document per chapter).
% Unlike the \include mechanism, every subdocument is a complete LaTeX
% document and can be typeset separately. What the package does is
% sharing the aux files. It's still an alpha version, and no attempt
% has been done yet to make it to work with, say, hyperref.
%
% This approach has the following advantages:
% 1) Packages can be loaded just when a part requires them.
% 2) Generated pdf/dvi/ps files are kept.
%
% You need a driver tex file containing a \subdocuments command
% listing the files. With an optional argument you can set
% its behaviour:
%
% \subdocuments[clear=double]{file1, file2, file3}
%
% The option clear=double adds an empty page at the end to give a even
% number of pages. clear=single doesn't and it's the default. Spaces
% and new lines before and after commas are ignored, as well as empty
% items. It relies on the keyval package, so names containing = must
% be given within braces.
%
% This file can be used as a shared preample, with common settings
% for all the documents.
%
% Documents must have the folowing line:
%
% \usepackage[master]{subdocs}
%
% where master is the name of the file described above.
%
% Since every subdocument reads all the aux files, \tableofcontents
% may be used where desired.
%
% Code
% ~~~~
\ProvidesPackage{subdocs}[2009/06/12 v0.1 Subdocuments]
\RequirePackage{keyval}
% Los dos siguientes son lo encargados de hacer lo que
% normalmente hace \include.
\AtBeginDocument{%
\if@filesw
\immediate\write\@auxout{\noexpand\sdoc@readaux}%
\fi}
% At end of document we write the counters using writeckpt
% but with \@partaux redirected to \@auxout. Like \include
% there is a \clearpage
\AtEndDocument{%
\sdoc@clear
\let\@partaux\@auxout
\@writeckpt{\jobname}}
\def\@wckptelt#1{%
\immediate\write\@partaux{%
\string\sdoc@setcounter{#1}{\the\@nameuse{c@#1}}}}
\def\sdoc@setcounter#1{%
\@ifundefined{c@#1}%
{\@gobble}%
{\setcounter{#1}}}
% Optional arguments
\def\sdoc@opt@clearsingle{\let\sdoc@clear\clearpage}
\def\sdoc@opt@cleardouble{\let\sdoc@clear\cleardoublepage}
\sdoc@opt@clearsingle
\define@key{sdoc@options}{clear}{\@nameuse{sdoc@opt@clear#1}}
%
\let\sdoc@loadaux\@empty
\newcommand\subdocuments[2][]{%
\let\sdoc@save@kverrx\KV@errx
\def\KV@errx##1{% \@tempa contains the file name
{\let\sdoc@elt\relax % local
\edef\sdoc@a{\expandafter\strip@prefix\meaning\@tempa}%
\protected@xdef\sdoc@loadaux{\sdoc@loadaux\sdoc@elt{\sdoc@a}}}}%
\setkeys{sdoc@files}{#2}%
\let\KV@errx\sdoc@save@kverrx
\setkeys{sdoc@options}{#1}}
% A "recursive" call. When a \jobname.aux file is
% read the first thing is (or should be) \sdoc@readaux.
% It reads all the aux files, and exits from the current
% aux without further reading because it is already read.
% This requires a file could \input itself, but, does
% that work in all distributions?
\def\sdoc@elt#1{%
\InputIfFileExists{#1.aux}{}%
{\PackageWarningNoLine{subdocs}{No file #1.aux -- Data may be wrong}}%
\sdoc@setcp{#1}}%
\def\sdoc@readaux{%
\global\let\sdoc@readaux\relax
\sdoc@loadaux
\global\let\sdoc@readaux\sdoc@readaux@x
\endinput}
\let\sdoc@readaux@x\sdoc@readaux
\def\sdoc@setcp#1{%
\def\sdoc@a{#1}\edef\sdoc@b{\jobname}%
\ifx\sdoc@a\sdoc@b
\PackageInfo{subdocs}{Ignoring counters from #1 on, }%
\global\let\sdoc@setcp\@gobble
\else
\csname cp@#1\endcsname
\fi}
% The master file name must be saved because it may contain
% \usepackage's, not allowed before \ProcessOptions.
\DeclareOption*{\edef\sdoc@a{\CurrentOption}}
\ProcessOptions
\InputIfFileExists{\sdoc@a}{}{}%
\endinput
|
