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-rw-r--r--Master/texmf-dist/source/latex/subfiles/subfiles.dtx357
1 files changed, 234 insertions, 123 deletions
diff --git a/Master/texmf-dist/source/latex/subfiles/subfiles.dtx b/Master/texmf-dist/source/latex/subfiles/subfiles.dtx
index 1a510c59b12..f5749c54cca 100644
--- a/Master/texmf-dist/source/latex/subfiles/subfiles.dtx
+++ b/Master/texmf-dist/source/latex/subfiles/subfiles.dtx
@@ -23,12 +23,12 @@
%
%<*driver>
% \fi
-\ProvidesFile{subfiles.dtx}[2020/09/07 v2.0 Multi-file projects]
+\ProvidesFile{subfiles.dtx}[2020/10/29 v2.1 Multi-file projects]
% \iffalse
\documentclass{ltxdoc}
\GetFileInfo{subfiles.dtx}
\title{A Document Class and a Package\\for Handling Multi-File Projects}
-\date{2020/09/07 v2.0}
+\date{2020/10/29 v2.1}
\author{Federico Garcia, Gernot Salzer}
\usepackage{hyperref}
\begin{document}
@@ -200,15 +200,15 @@
% The preamble of subfiles is skipped when loaded with |\subfile|, and everything after |\end{document}| is ignored.
% In most cases this is what you want.
%
-% \DescribeMacro{v1}
-% For reasons of compatibility, the option |v1| restores the behaviour of older versons:
+% \DescribeMacro{[v1]}
+% For reasons of compatibility, the option |v1| restores the behaviour of previous versions.
% \begin{center}
% |\usepackage[v1]{subfiles}|
% \end{center}
% This will have three effects.
%
% \emph{Code after the end of the main document} is added to the preamble of the subfiles, but is ignored when typesetting the main file.
-% Here one can add commands that are to be processed as part of the preamble when the subfiles are typeset on their one.
+% Here, one can add commands that are to be processed as part of the preamble when the subfiles are typeset on their one.
% But this also means that any syntax error after |\end{document}| will ruin the \LaTeX ing of the subfile(s).
%
% \emph{Code in the preamble of a subfile} is processed as part of the text when typesetting the main file, but as part of the preamble when typesetting the subfile.
@@ -279,6 +279,25 @@
% \end{center}
% Then each of the three files can be typeset individually in its respective directory, where \LaTeX\ is able to locate all included text files and images.
%
+% \subsection{Cross-referencing between subfiles}
+% When working with multiple subfiles under a main file, say |main.tex|, one may want to refer in subfile |A.tex| to labels in subfile |B.tex|. To make this work, load the package |xr| in the preamble of the main file and add an |\externaldocument| command after loading the |subfiles| package:
+% \begin{center}
+% \begin{tabular}{l}
+% |\usepackage{xr}| \\
+% |\usepackage{subfiles}| \\
+% |\externaldocument[M-]{\subfix{main}}|
+% \end{tabular}
+% \end{center}
+% In the |\externaldocument| command, |main| is the name of the main document.
+% Moreover, |M-| is an arbitrary sequence of characters that is added as prefix to the labels.
+% The |\subfix| command is only needed if the subfiles are not in the same directory as the main file, but it doesn't hurt if you add it in any case.
+%
+% To cross-reference between documents, add labels as usual.
+% Suppose you have |\label{mylabel}| in any of the files.
+% Then you can use |\ref{M-mylabel}| and |\pageref{M-mylabel}| to obtain the (page) number that the label refers to in the main document.
+%
+% Note that you first have to compile |main.tex|.
+% This generates |main.aux|, which then can be loaded by the subfiles to provide the information for the labels prefixed with |M-|.
%
% \subsection{Avoiding extra spaces}
%
@@ -323,56 +342,57 @@
% \item
% Make sure that |\usepackage{subfiles}| appears near the end of the main preamble.
% \item
-% Make sure that the strings |\begin{document}| and |\end{document}| appear on lines of their own and that there are no additional characters preceding or trailing them.
-% \item
% If some external program that cooperates with \TeX, like |bibtex| or |biber|, complains about not being able to find a file, locate the name of the file in the \LaTeX\ source and replace \meta{filename} by |\subfix{|\meta{filename}|}|.
% \item
-% If nothing of the above helps, ask the nice people on tex.stackexchange\footnote{\url{https://tex.stackexchange.com/}}.
+% If nothing of the above helps, ask the nice people on tex.stackexchange\footnote{\url{https://tex.stackexchange.com/}} or file an issue in the bug tracker of the Github repository\footnote{\url{https://github.com/gsalzer/subfiles/issues}}.
% \end{enumerate}
+%
%
% \section{Dependencies}
%
-% The |subfiles| package uses the |import| package by Donald Arsenau to load subfiles from different directories.
-% |import.sty| is part of the standard \TeX\ distribution.
+% The |import| package by Donald Arsenau is needed to load subfiles from different directories.
+% When the |standalone| package is used, the |subfiles| package requires the |xpatch| package by Enrico Gregorio to patch the command |\includestandalone|.
+% Both packages are part of the standard \TeX\ distributions.
+%
%
% \section{Version history}
%
-% \begin{description}
+% \begin{enumerate}
% \item[v1.1:]
-% Initial version by Federico Garcia. Subsequent versions by Gernot Salzer.
-% \item[v1.2:] \mbox{}
+% Initial version by Federico Garcia. (Subsequent versions by Gernot Salzer.)
+% \item[v1.2:]
% \begin{itemize}
% \item Incompatibility with classes and packages removed that modify the |\document| command, like the class |revtex4|.
% \end{itemize}
-% \item[v1.3:] \mbox{}
+% \item[v1.3:]
% \begin{itemize}
% \item Use of |import| package to handle directory hierarchies.
% \item |\ignorespaces| added to avoid spurious spaces.
% \item Incompatibility with commands removed that expect |\document| to be equal to |\@onlypreamble| after the preamble. Thanks to Eric Domenjoud for analysing the problem.
% \end{itemize}
-% \item[v1.4:] \mbox{}
+% \item[v1.4:]
% \begin{itemize}
% \item Incompatibility with |memoir| class and |comment| package removed.
% \item Bug `|\unskip| cannot be used in vertical mode` fixed.
% \end{itemize}
-% \item[v1.5:] \mbox{}
+% \item[v1.5:]
% \begin{itemize}
% \item Command |\subfileinclude| added.
% \item Basic support for |bibtex| related bibliographies in subfiles added.
% Seems to suffice also for sub-bibliographies with the package |chapterbib|.
% \item Support for sub-bibliographies with package |bibunits| added.
% \end{itemize}
-% \item[v1.6:] \mbox{}
+% \item[v1.6:]
% \begin{itemize}
% \item Support for sub-bibliographies with package |bibunits| dropped, in favor of |\subfix|.
% \item Command |\subfix| added.
% \item Incompatibility with |standalone| class removed.
% \item The options of the main class are now also processed when typesetting a subfile; before they were ignored. Thanks to J\'an Kl'uka for analysing the problem.
% \end{itemize}
-% \item[v2.0:] \mbox{}
+% \item[v2.0:]
% \begin{itemize}
% \item Incompatibility with \LaTeX\ Oct.~2020 removed.
-% Thanks to Ulrike \mbox{Fischer} from the \LaTeX~3 team for the warning in time.
+% Thanks to Ulrike \mbox{Fischer} from the \LaTeX3 team for the timely warning.
% \item By default, text after |\end{document}| as well as the preamble of subfiles, when loaded with |\subfile|, are ignored now.
% The old behaviour is available via the new package option |v1|.
% \item Command |\ifSubfilesClassLoaded| added and documentation regarding the use of the |\bibliography| command corrected.
@@ -382,14 +402,26 @@
% \item Problem with the search path for images resolved.
% Thanks to Github user |maxnick| for reporting the issue.
% \end{itemize}
-% \end{description}
+% \item[v2.1]
+% \begin{itemize}
+% \item Bugfix: In some situations, the hooks of |\begin{document}| and |\end{document}| were triggered when loading a subfile.
+% This occurred in particular with packages for handling CJK languages.
+% Thanks to Github user |yuishin-kikuchi| for reporting the issue.
+% \item Section about cross-referencing added.
+% Thanks to Github user |ndvanforeest| for the input.
+% \end{itemize}
+% \end{enumerate}
%
%\section{The Implementation}
%\subsection{The class}
-% \begin{macrocode}
+%
+% \iffalse
%<*class>
+% \fi
+%
+% \begin{macrocode}
\NeedsTeXFormat{LaTeX2e}
-\ProvidesClass{subfiles}[2020/09/07 v2.0 Multi-file projects (class)]
+\ProvidesClass{subfiles}[2020/10/29 v2.1 Multi-file projects (class)]
\DeclareOption*{%
\typeout{Preamble taken from file `\CurrentOption'}%
\let\preamble@file\CurrentOption
@@ -422,6 +454,7 @@
% In earlier versions, we used |\subimport| to load the preamble of the main file, which has the unwanted effect of undoing changes to the graphics path.
% Therefore we use |\input| and initialize |\import@path| and |\input@path| to the path of the main file.
% We use the internal \LaTeX\ macro |\filename@parse| to obtain this path.
+%
% \begin{macrocode}
\filename@parse{\preamble@file}
\edef\import@path{\filename@area}
@@ -429,112 +462,195 @@
\input{\preamble@file}
% \end{macrocode}
%
-% After loading the preamble of the main file, we reset |\import@path{}|.
+% After loading the preamble of the main file, we reset |\import@path|.
% Since the preamble may have changed the catcode of the |@| sign, we make it (again) a letter. Better safe than sorry.
%
% \begin{macrocode}
{\makeatletter
\gdef\import@path{}
}
-%</class>
% \end{macrocode}
%
+% \iffalse
+%</class>
+% \fi
+%
%
% \subsection{The package}
-% \begin{macrocode}
+%
+% \iffalse
%<*package>
+% \fi
+%
+% \begin{macrocode}
\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{subfiles}[2020/09/07 v2.0 Multi-file projects (package)]
+\ProvidesPackage{subfiles}[2020/10/29 v2.1 Multi-file projects (package)]
+% \end{macrocode}
+% \subsubsection*{Auxiliary commands}
+% \begin{flushleft}
+% |\ifDOCUMENT{|\meta{string}|}{|\meta{then code}|}{|\meta{else code}|}|\\
+% If \meta{string} equals |document|, then execute \meta{then code}, else \meta{else code}.
+% \end{flushleft}
+% \begin{macrocode}
+\def\subfiles@DOCUMENT{document}
+\def\ifDOCUMENT#1#2#3{%
+ \def\subfiles@tmp{#1}%
+ \ifx\subfiles@tmp\subfiles@DOCUMENT
+ \def\subfiles@tmp{#2}%
+ \else
+ \def\subfiles@tmp{#3}%
+ \fi
+ \subfiles@tmp
+}
% \end{macrocode}
%
-% The package has one option, |v1|, which affects the way how the text after |\end{document}| and in the preamble of subfiles is handled.
-% With this option, |subfiles| behaves like in version 1.x.
-% To implement the retro behaviour, we need a few definitions.
+% \begin{flushleft}
+% |\subfiles@renewDocument{begin}{|\meta{begin-document-code}|}|\\
+% |\subfiles@renewDocument{end}{|\meta{end-document-code}|}|\\
+% Redefines |\begin|/|\end| to execute the given code in place of the next |\begin{document}|/|\end{document}|.
+% \end{flushleft}
+% \begin{macrocode}
+\def\subfiles@renewDocument#1#2{%
+ \expandafter\def\csname#1\endcsname##1{%
+ \ifDOCUMENT{##1}{%
+ \expandafter\let\csname#1\expandafter\endcsname\csname subfiles@#1\endcsname
+ #2%
+ }{%
+ \csname subfiles@#1\endcsname{##1}%
+ }%
+ }%
+}
+% \end{macrocode}
+% |\subfiles@renewDocument{begin}{<code>}| is actually the same as
+% \begin{verbatim}
+%\def\begin#1{%
+% \ifDOCUMENT{#1}{%
+% \let\begin\subfiles@begin
+% <code>
+% }{%
+% \subfiles@begin{#1}%
+% }%
+%}%\end{verbatim}
+% \begin{flushleft}
+% |\subfiles@newSkipToDocument\begin|\meta{cmd}|{|\meta{continuation}|}|\\
+% |\subfiles@newSkipToDocument\end|\meta{cmd}|{|\meta{continuation}|}|\\
+% Defines \meta{cmd} to skip to the next |\begin{document}| or |\end{document}| and to execute \meta{continuation}.
+% \end{flushleft}
%
-% First, we define three macros containing the strings |\begin{document}|, |\end{document}| and |document|.
-% We need them later to detect these strings in the input.
% \begin{macrocode}
-\def\subfiles@DOCUMENT{document}
-{\escapechar=-1\relax
- \xdef\subfiles@BEGINDOCUMENT{\string\\begin\string\{document\string\}}%
- \xdef\subfiles@ENDDOCUMENT{\string\\end\string\{document\string\}}%
+\def\subfiles@newSkipToDocument#1#2#3{%
+ \long\def#2##1#1##2{\ifDOCUMENT{##2}{#3}{#2}}%
}
% \end{macrocode}
%
-% The macro |\subfiles@skipDocument| skips everything until it encounters the string |\end{document}|.
-% In earlier versions of the package, this was accomplished by redefining the |document| environment to the |comment| environment of the |verbatim| package.
-% This clashes with the \LaTeX\ format published in October 2020, so we copy and adapt the code from the |verbatim| package (see the definition of |\subfiles@skiplines| below).
+% \subsubsection*{Handling the main document}
%
+% When the main document is loaded from a subfile, the preamble is read, but the document itself is skipped.
+% The lines after |\end{document}| are treated again as part of the preamble in old versions (1.x), but are ignored in new versions (2.x).
+%
% \begin{macrocode}
-\def\subfiles@skipDocument{%
- \let\subfiles@skiplinescont\ignorespaces
- \let\subfiles@skiplinesend\subfiles@ENDDOCUMENT
- \subfiles@skiplines
+\def\subfiles@handleMainDocumentVi{%
+ \let\subfiles@begin\begin
+ \subfiles@renewDocument{begin}{%
+ \subfiles@newSkipToDocument\end\subfiles@skipToEndDocument\ignorespaces
+ \subfiles@skipToEndDocument
+ }%
+}
+\def\subfiles@handleMainDocumentVii{%
+ \let\subfiles@begin\begin
+ \subfiles@renewDocument{begin}{%
+ \endinput
+ \ignorespaces
+ }%
}
% \end{macrocode}
%
-% To skip |\documentclass| the old way, we redefine it to do nothing except restoring its original definition.
+% \subsubsection*{Handling subfiles}
+%
+% When a subfile is loaded, the preamble and |\end{document}| have to be ignored.
+% More precisely, in older versions (v1.x), the following happens:
+% \begin{itemize}
+% \item |\documentclass[...]{subfiles}| is ignored.
+% \item The contents of the preamble becomes part of the text.
+% \item |\begin{document}| is ignored.
+% \item |\end{document}| is ignored.
+% \item Any lines after |\end{document}| are also part of the text.
+% \end{itemize}
%
% \begin{macrocode}
-\def\subfiles@skipDocumentclass{%
- \renewcommand\documentclass[2][]{%
+\def\subfiles@handleSubDocumentVi{%
+ \let\subfiles@documentclass\documentclass
+ \def\documentclass{%
+ \@ifnextchar[\subfiles@documentclass@{\subfiles@documentclass@[]}%
+ }%
+ \def\subfiles@documentclass@[##1]##2{%
\let\documentclass\subfiles@documentclass
\ignorespaces
}%
+ \let\subfiles@begin\begin
+ \subfiles@renewDocument{begin}{%
+ \subfiles@saveEnd
+ \subfiles@renewDocument{end}\ignorespaces
+ \ignorespaces
+ }%
}
% \end{macrocode}
+% In newer versions (v2.x), the following happens:
+% \begin{itemize}
+% \item The preamble, up to |\begin{document}|, is ignored.
+% \item |\end{document}| as well as any lines after it are ignored.
+% \end{itemize}
%
-% To ignore the preamble of a subfile, we redefine |\documentclass| to skip everything until the string |\begin{document}| is encountered.
% \begin{macrocode}
-\def\subfiles@skipPreamble{%
- \def\documentclass{%
+\def\subfiles@handleSubDocumentVii{%
+ \let\subfiles@documentclass\documentclass
+ \subfiles@newSkipToDocument\begin\documentclass{%
\let\documentclass\subfiles@documentclass
- \def\subfiles@skiplinescont{\begin{document}}%
- \let\subfiles@skiplinesend\subfiles@BEGINDOCUMENT
- \subfiles@skiplines
+ \subfiles@saveEnd
+ \subfiles@renewDocument{end}{%
+ \endinput
+ \ignorespaces
+ }%
+ \ignorespaces
}%
}
% \end{macrocode}
%
-% Now we set the default behaviour of the subfiles package:
-% When loading the main preamble in a subfile, everything after the preamble is ignored.
-% Moreover, when reading a subfile, its preamble as well as everything after |\end{document}| is ignored.
+% Before redefining |\begin| and |\end|, we remember their original definitions in |\subfiles@begin| and |\subfiles@end|.
+% We don't do this once and for all in the preamble, because there might be other packages also fiddling with these commands.
+% To reset |\begin| to the definition it had at the point where we modified it, we do |\let\subfiles@begin\begin| immediately before redefining it.
+% For |\end|, the situation is different.
+% For nested subfiles, |\end| does not have its original definition but ours.
+% Therefore we save |\end| only if |\subfiles@end| is still undefined (meaning that we are outside of subfiles).
+%
% \begin{macrocode}
-\let\subfiles@handleMain\endinput
-\let\subfiles@handleSubpreamble\subfiles@skipPreamble
-\let\subfiles@handleTextAfterSubdocument\endinput
+\def\subfiles@saveEnd{%
+ \ifcsname subfiles@end\endcsname
+ \else
+ \let\subfiles@end\end
+ \fi
+}
% \end{macrocode}
%
-% The option |v1| restores the behaviour of the old |subfiles| package: When loading the main preamble in a subfile, only the contents of the |document| environent is ignored, but not the stuff following it. Moreover, when reading a subfile, only the |\documentclass| command and the lines |\begin{document}| and |\end{document}| are ignored, but the subfile preamble as well as everything after |\end{document}| is retained.
+% \subsubsection*{Processing the package options}
+%
+% The package has currently only one option, |v1|, which affects the way how the text after |\end{document}| and in the preamble of subfiles is handled.
+% We initialize the macros for handling main and sub documents with the behavior of version 2.x.
+% \begin{macrocode}
+\let\subfiles@handleMainDocument\subfiles@handleMainDocumentVii
+\let\subfiles@handleSubDocument\subfiles@handleSubDocumentVii
+% \end{macrocode}
+% When option |v1| is present, the macros are set to the behavior of version 1.x.
% \begin{macrocode}
\DeclareOption{v1}{%
- \let\subfiles@handleMain\subfiles@skipDocument
- \let\subfiles@handleSubpreamble\subfiles@skipDocumentclass
- \let\subfiles@handleTextAfterSubdocument\relax
+ \let\subfiles@handleMainDocument\subfiles@handleMainDocumentVi
+ \let\subfiles@handleSubDocument\subfiles@handleSubDocumentVi
}
\DeclareOption*{\PackageWarning{subfiles}{Option '\CurrentOption' ignored}}
\ProcessOptions\relax
% \end{macrocode}
-%
-% To skip everything until a specific string is read, we adapt code from the |verbatim| package.
-% The skipping of lines is controlled by two macros that have to be set before calling |\subfiles@skiplines|.
-% |\subfiles@skiplinesend| is the string that marks the end of the skipped area; it has to appear on a line of its own, as the only content of this line.
-% |\subfiles@skiplinescont| contains the code to be executed after skipping has ended.
-%
-% \begin{macrocode}
-\def\subfiles@skiplines{%
- \begingroup
- \let\do\@makeother\dospecials
- \@makeother\^^L%
- \endlinechar`\^^M\relax \catcode`\^^M=12\relax \subfiles@skipline}
-{\catcode`\^^M=12 \endlinechar=-1 %
- \gdef\subfiles@skipline#1^^M{\def\subfiles@tmp{#1}%
- \ifx\subfiles@tmp\subfiles@skiplinesend
- \def\subfiles@tmp{\endgroup\subfiles@skiplinescont}%
- \else\let\subfiles@tmp\subfiles@skipline
- \fi \subfiles@tmp}
-}
-% \end{macrocode}
+%
+% \subsubsection*{Loading subfiles}
%
% To handle subfiles in separate directories, we use the |import| package.
% If it has already been loaded, e.g.\ by the |subfiles| class, this line does nothing.
@@ -542,7 +658,7 @@
\RequirePackage{import}
% \end{macrocode}
%
-% The |\subimport| command requires path and filename as separate arguments, so we have to split file locations into these two components.
+% The |\subimport| command requires path and filename as separate arguments, so we have to split qualified filenames into these two components.
% The internal \LaTeX\ command |\filename@parse| almost fits the bill, except that it additionally splits the filename into basename and extension.
% Unfortunately, concatenating basename and extension to recover the filename is not clean:
% Under Unix/Linux, the filenames |base| and |base.| denote different entities, but after |\filename@parse| both have the same basename and an empty extension.
@@ -579,36 +695,21 @@
}
% \end{macrocode}
%
-% The main functionality of the two commands is implemented in |\subfiles@subfile|.
-% It redefines |\documentclass| and the |document| environment to do nothing but reverting these command to their original meaning and avoiding spurious spaces.
-% Reverting |\documentclass| and |\document| to their original definition is important for being compatible with classes like |standalone| or packages like |bibentry|, which rely on this definition.
+% The main functionality is implemented in |\subfiles@subfile|.
+% It sets up the handling of the sub-preamble, splits the filename and loads the subfile.
%
% \begin{macrocode}
-\newcommand\subfiles@subfile[1]{%
+\def\subfiles@subfile#1{%
\begingroup
- \let\subfiles@documentclass\documentclass
- \let\subfiles@document\document
- \let\subfiles@enddocument\enddocument
- \subfiles@handleSubpreamble
- \renewenvironment{document}{%
- \let\document\subfiles@document
- \ignorespaces
- }{%
- \let\enddocument\subfiles@enddocument
- \@ignoretrue
- \subfiles@handleTextAfterSubdocument
- }%
-% \end{macrocode}
-%
-% Now we split the file name into path and base name and load the file.
-%
-% \begin{macrocode}
+ \subfiles@handleSubDocument
\subfiles@split{#1}%
\subfiles@loadfile{\filename@area}{\filename@base}%
\endgroup
}
% \end{macrocode}
%
+% \subsubsection*{Fixing incompatibilities}
+%
% \DescribeMacro{\subfix}
% If some package provides a command that takes a filename as argument, then it has to be prefixed with the current |\import@path|.
% This is what the |\subfix| command tries to do.
@@ -643,13 +744,13 @@
%
% \begin{macrocode}
\let\subfiles@bibliography\bibliography
-\renewcommand\bibliography[1]{%
+\def\bibliography#1{%
\subfiles@fixfilelist{#1}%
\expandafter\subfiles@bibliography\expandafter{\subfiles@list}%
}
\@ifpackageloaded{graphics}{%
\let\subfiles@graphicspath\graphicspath
- \renewcommand\graphicspath[1]{%
+ \def\graphicspath#1{%
\subfiles@fixpathlist{#1}%
\edef\subfiles@list{{\subfix{}}\subfiles@list}%
\expandafter\subfiles@graphicspath\expandafter{\subfiles@list}%
@@ -657,6 +758,25 @@
}{}
% \end{macrocode}
%
+% \DescribeMacro{\includestandalone}
+% The command |\includestandalone| handles subfiles in its own way.
+% Therefore we modify it to use the original definition of |\end|.
+%
+% \begin{macrocode}
+\@ifpackageloaded{standalone}{
+ \RequirePackage{xpatch}
+ \xpretocmd\includestandalone{%
+ \let\subfiles@end@\end
+ \ifcsname subfiles@end\endcsname
+ \let\end\subfiles@end
+ \fi
+ }{}{}
+ \xapptocmd\includestandalone{\let\end\subfiles@end@}{}{}
+}{}
+% \end{macrocode}
+%
+% \subsubsection*{Do we typeset the main file or a subfile?}
+%
% \DescribeMacro{\ifSubfilesClassLoaded}
% To add code or text conditionally, depending on whether the main document or a subfile is typeset, we provide the command |\ifSubfilesClassLoaded|.
%
@@ -670,26 +790,17 @@
}
% \end{macrocode}
%
-% The |subfiles| package is loaded near the end of the main preamble.
-% If it is loaded from a subfile, i.e., if |subfiles.cls| has been loaded, then we have to prepare for skipping the main document.
-% We do this be redefining the |\begin| command.
-% Normally, the first |\begin| after the |subfiles| package starts the main document.
-% To allow for the case that some other environment occurs before (does it really happen?) we test whether we are dealing with |\begin{document}|.
-% If not, we execute the original definition of |\begin|; otherwise we skip the main document as specified by |\subfiles@handleMain|.
%
+% \subsubsection*{The end is near}
+%
+% The |subfiles| package is loaded near the end of the main preamble.
+% If it is loaded from a subfile, i.e., if |subfiles.cls| has been loaded, then we prepare for skipping the main document.
% \begin{macrocode}
\ifSubfilesClassLoaded{%
- \let\subfiles@begin\begin
- \def\begin#1{%
- \def\subfiles@tmp{#1}%
- \ifx\subfiles@tmp\subfiles@DOCUMENT
- \let\begin\subfiles@begin
- \let\subfiles@tmp\subfiles@handleMain
- \else
- \def\subfiles@tmp{\subfiles@begin{#1}}%
- \fi
- \subfiles@tmp
- }%
+ \subfiles@handleMainDocument
}{}
-%</package>
% \end{macrocode}
+%
+% \iffalse
+%</package>
+% \fi
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 08:39:44 +0000