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-rw-r--r--Master/texmf-dist/source/latex/base/ltfiles.dtx224
1 files changed, 210 insertions, 14 deletions
diff --git a/Master/texmf-dist/source/latex/base/ltfiles.dtx b/Master/texmf-dist/source/latex/base/ltfiles.dtx
index 6960fd44a3f..afb085a4174 100644
--- a/Master/texmf-dist/source/latex/base/ltfiles.dtx
+++ b/Master/texmf-dist/source/latex/base/ltfiles.dtx
@@ -1,6 +1,6 @@
% \iffalse meta-comment
%
-% Copyright 1993-2017
+% Copyright (C) 1993-2019
% The LaTeX3 Project and any individual authors listed elsewhere
% in this file.
%
@@ -13,7 +13,7 @@
% The latest version of this license is in
% https://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions of LaTeX
-% version 2005/12/01 or later.
+% version 2008 or later.
%
% This file has the LPPL maintenance status "maintained".
%
@@ -32,7 +32,7 @@
%<*driver>
% \fi
\ProvidesFile{ltfiles.dtx}
- [2018/01/08 v1.1m LaTeX Kernel (File Handling)]
+ [2019/08/27 v1.2b LaTeX Kernel (File Handling)]
% \iffalse
\documentclass{ltxdoc}
\GetFileInfo{ltfiles.dtx}
@@ -280,7 +280,7 @@
% the math fonts.
% \begin{macrocode}
\process@table
- \let\glb@currsize\@empty %% Force math initialization.
+ \let\glb@currsize\@empty % Force math initialization.
% \end{macrocode}
% \changes{v0.9t}{1994/01/31}
% {set \cs{@normalsize} or \cs{normalsize} if necessary}
@@ -541,10 +541,17 @@
%
% \begin{macro}{\includeonly}
% \changes{v1.0p}{1995/04/22}{Allow blanks in argument}
+% \changes{v1.2a}{2019/07/01}{Support UTF-8}
% \begin{macrocode}
+%</2ekernel>
+%<*2ekernel|latexrelease>
+%<latexrelease>\IncludeInRelease{2019/10/01}%
+%<latexrelease> {\includeonly}{Spaces in file names}%
\def\includeonly#1{%
\@partswtrue
- \edef\@partlist{\zap@space#1 \@empty}}
+ \set@curr@file{\zap@space#1 \@empty}%
+ \let\@partlist\@curr@file
+ }
\@onlypreamble\includeonly
% \end{macrocode}
% \end{macro}
@@ -569,10 +576,33 @@
\def\include#1{\relax
\ifnum\@auxout=\@partaux
\@latex@error{\string\include\space cannot be nested}\@eha
- \else \@include#1 \fi}
+ \else
+ \set@curr@file{#1 }%
+ \expandafter\@include\@curr@file
+ \fi}
% \end{macrocode}
% \end{macro}
%
+%
+% \begin{macrocode}
+%</2ekernel|latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\includeonly}{Spaces in file names}%
+%<latexrelease>\def\includeonly#1{%
+%<latexrelease> \@partswtrue
+%<latexrelease> \edef\@partlist{\zap@space#1 \@empty}}
+%<latexrelease>
+%<latexrelease>\def\include#1{\relax
+%<latexrelease> \ifnum\@auxout=\@partaux
+%<latexrelease> \@latex@error{\string\include\space cannot be nested}\@eha
+%<latexrelease> \else \@include#1 \fi}
+%<latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<*2ekernel>
+% \end{macrocode}
+
+%
% \begin{macro}{\@include}
% \begin{macrocode}
\def\@include#1 {%
@@ -656,14 +686,86 @@
%
% \subsection{Safe Input Macros}
%
-% \begin{macro}{\IfFileExists}
+%
+%
+
+% \begin{macro}{\@curr@file}
+% \begin{macro}{\set@curr@file}
+%
+% File name handling is done by generating a csname from the
+% provided file name (which means that UTF-8 octets gets turned into
+% strings as this is what happens if they appear in a csname due to
+% the code in \texttt{utf8.def}). By setting \cs{escapchar} to
+% \texttt{-1} we ensure that we don't get a backslash in front. As a
+% result we end up with all characters as catcode 12 (plus
+% spaces). We then sometimes add quotes around the contruct
+% (removing any existing inner quotes. Somes we only remove the
+% quotes if they have been supplied by the user. There is clearly
+% some room for improvement.
+%
+% A side effect of the new code is that we will see quotes around
+% file name displays where there haven't been any before.
+%
+% \changes{v1.2a}{2019/07/01}{Support UTF-8}
+% \begin{macrocode}
+%</2ekernel>
+%<*2ekernel|latexrelease>
+%<latexrelease>\IncludeInRelease{2019/10/01}%
+%<latexrelease> {\set@curr@file}{Quote file names}%
+\def\set@curr@file#1{%
+ \begingroup
+ \escapechar\m@ne
+ \xdef\@curr@file{\expandafter\string\csname #1\endcsname}%
+ \endgroup
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\quote@name}
+% \begin{macro}{\quote@@name}
+% \begin{macro}{\unquote@name}
+% Quoting spaces
+%\begin{verbatim}
+% a b c -> "a b c"
+% "a b c" -> "a b c"
+% a" "b" "c -> "a b c"
+% -> ""
+%\end{verbatim}
+% \begin{macrocode}
+\def\quote@name#1{"\quote@@name#1\@gobble""}
+\def\quote@@name#1"{#1\quote@@name}
+% \end{macrocode}
+% and removing quotes \ldots
+% \begin{macrocode}
+\def\unquote@name#1{\quote@@name#1\@gobble"}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+%
+% \begin{macro}{\IfFileExists}
+%
+% \changes{v1.2a}{2019/07/01}{Support UTF-8}
+% \changes{v1.2b}{2019/08/27}{Make command robust}
+% \begin{macrocode}
+\DeclareRobustCommand\IfFileExists[1]{%
+ \set@curr@file{#1}%
+ \edef\q@curr@file{\expandafter\quote@name\expandafter{\@curr@file}}%
+ \expandafter\IfFileExists@\expandafter{\q@curr@file}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\IfFileExists@}
% \changes{v0.9b}{1993/12/04}{Macro added}
% \changes{v0.9p}{1994/01/18}{New Definition}
-% \changes{v1.0t}{1995/05/25}
-% {(CAR) added \cs{long}}
+% \changes{v1.0t}{1995/05/25}{(CAR) added \cs{long}}
%
% \begin{macrocode}
-\long\def \IfFileExists#1#2#3{%
+\long\def \IfFileExists@#1#2#3{%
\openin\@inputcheck#1 %
\ifeof\@inputcheck
\ifx\input@path\@undefined
@@ -678,6 +780,42 @@
\fi
\reserved@a}
% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macrocode}
+%</2ekernel|latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\set@curr@file}{Quote file names}%
+%<latexrelease>
+%<latexrelease>\let\quote@name\@undefined
+%<latexrelease>\let\quote@@name\@undefined
+%<latexrelease>\let\unquote@name\@undefined
+%<latexrelease>\let\set@curr@file\@undefined
+%<latexrelease>
+%<latexrelease>\let\IfFileExists@\@undefined
+%<latexrelease>
+%<latexrelease>\long\def \IfFileExists#1#2#3{%
+%<latexrelease> \openin\@inputcheck#1 %
+%<latexrelease> \ifeof\@inputcheck
+%<latexrelease> \ifx\input@path\@undefined
+%<latexrelease> \def\reserved@a{#3}%
+%<latexrelease> \else
+%<latexrelease> \def\reserved@a{\@iffileonpath{#1}{#2}{#3}}%
+%<latexrelease> \fi
+%<latexrelease> \else
+%<latexrelease> \closein\@inputcheck
+%<latexrelease> \edef\@filef@und{#1 }%
+%<latexrelease> \def\reserved@a{#2}%
+%<latexrelease> \fi
+%<latexrelease> \reserved@a}
+%<latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<*2ekernel>
+% \end{macrocode}
+%
+%
%
% \begin{macro}{\@iffileonpath}
% If the file is not found by |\openin|, and |\input@path| is defined,
@@ -704,7 +842,6 @@
\reserved@a}
% \end{macrocode}
% \end{macro}
-% \end{macro}
%
% \begin{macro}{\InputIfFileExists}
% \changes{v0.9b}
@@ -718,13 +855,51 @@
% If the file |#1| does not exist, execute `|#3|'.
% \changes{v1.0t}{1995/05/25}
% {(CAR) added \cs{long}}
+% \changes{v1.1o}{2019/02/07}{Expand \cs{@filef@und} before executing
+% second argument (github/109)}
+% \changes{v1.2b}{2019/08/27}{Make command robust}
% \begin{macrocode}
-\long\def \InputIfFileExists#1#2{%
+%</2ekernel>
+%<latexrelease>\IncludeInRelease{2019/10/01}%
+%<latexrelease> {\InputIfFileExists}{Don't lose the file name}%
+%<*2ekernel|latexrelease>
+% \begin{macrocode}
+\DeclareRobustCommand \InputIfFileExists[2]{%
\IfFileExists{#1}%
- {#2\@addtofilelist{#1}\@@input \@filef@und}}
+ {%
+ \expandafter\@swaptwoargs\expandafter
+ {\@filef@und}{#2\@addtofilelist{#1}\@@input}}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@swaptwoargs}
+%
+% \changes{v1.1o}{2019/02/07}{Helper macro added}
+% Swap two arguments and return them unbraced (like
+% \cs{@firstoftwo} etc).
+% \begin{macrocode}
+\long\def\@swaptwoargs#1#2{#2#1}
% \end{macrocode}
% \end{macro}
%
+%
+% \begin{macrocode}
+%</2ekernel|latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\InputIfFileExists}{Don't lose the file name}%
+%<latexrelease>\long\def \InputIfFileExists#1#2{%
+%<latexrelease> \IfFileExists{#1}%
+%<latexrelease> {#2\@addtofilelist{#1}\@@input \@filef@und}}
+%<latexrelease>
+%<latexrelease>\let\@swaptwoargs\@undefined
+%<latexrelease>\EndIncludeInRelease
+%<*2ekernel>
+% \end{macrocode}
+%
+%
+%
% \begin{macro}{\input}
% Input a file: if the argument is given in braces use safe input
% macros, otherwise use \TeX's primitive |\input| command (which is
@@ -740,15 +915,36 @@
% |\InputIfIfileExists|.
% \changes{v0.9b}{1993/12/04}{Macro reimplemented}
% \begin{macrocode}
+%</2ekernel>
+%<*2ekernel|latexrelease>
+%<latexrelease>\IncludeInRelease{2019/10/01}%
+%<latexrelease> {\@iinput}{Quote file names}%
\def\@iinput#1{%
\InputIfFileExists{#1}{}%
- {\filename@parse{#1}%
+ {\filename@parse\@curr@file
\edef\reserved@a{\noexpand\@missingfileerror
{\filename@area\filename@base}%
{\ifx\filename@ext\relax tex\else\filename@ext\fi}}%
\reserved@a}}
+%</2ekernel|latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\@iinput}{Quote file names}%
+%<latexrelease>\def\@iinput#1{%
+%<latexrelease> \InputIfFileExists{#1}{}%
+%<latexrelease> {\filename@parse{#1}%
+%<latexrelease> \edef\reserved@a{\noexpand\@missingfileerror
+%<latexrelease> {\filename@area\filename@base}%
+%<latexrelease> {\ifx\filename@ext\relax tex\else\filename@ext\fi}}%
+%<latexrelease> \reserved@a}}
+%<latexrelease>\EndIncludeInRelease
+%<*2ekernel>
% \end{macrocode}
% \end{macro}
+
+
+
+
%
% \begin{macro}{\@input}
% \changes{v0.9b}{1993/12/04}{Macro reimplemented}