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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /macros/latex/contrib/oberdiek/eolgrab.dtx
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+% \iffalse meta-comment
+%
+% File: eolgrab.dtx
+% Version: 2016/05/16 v1.1
+% Info: Catch arguments delimited by end of line
+%
+% Copyright (C) 2011 by
+% Heiko Oberdiek <heiko.oberdiek at googlemail.com>
+% 2016
+% https://github.com/ho-tex/oberdiek/issues
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either
+% version 1.3c of this license or (at your option) any later
+% version. This version of this license is in
+% http://www.latex-project.org/lppl/lppl-1-3c.txt
+% and 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 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status "maintained".
+%
+% This Current Maintainer of this work is Heiko Oberdiek.
+%
+% The Base Interpreter refers to any `TeX-Format',
+% because some files are installed in TDS:tex/generic//.
+%
+% This work consists of the main source file eolgrab.dtx
+% and the derived files
+% eolgrab.sty, eolgrab.pdf, eolgrab.ins, eolgrab.drv,
+% eolgrab-example-ltx.tex, eolgrab-example-env.tex,
+% eolgrab-example-sec.tex, eolgrab-test1.tex,
+% eolgrab-test2.tex.
+%
+% Distribution:
+% CTAN:macros/latex/contrib/oberdiek/eolgrab.dtx
+% CTAN:macros/latex/contrib/oberdiek/eolgrab.pdf
+%
+% Unpacking:
+% (a) If eolgrab.ins is present:
+% tex eolgrab.ins
+% (b) Without eolgrab.ins:
+% tex eolgrab.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{eolgrab.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If eolgrab.drv is present:
+% latex eolgrab.drv
+% (b) Without eolgrab.drv:
+% latex eolgrab.dtx; ...
+% The class ltxdoc loads the configuration file ltxdoc.cfg
+% if available. Here you can specify further options, e.g.
+% use A4 as paper format:
+% \PassOptionsToClass{a4paper}{article}
+%
+% Programm calls to get the documentation (example):
+% pdflatex eolgrab.dtx
+% makeindex -s gind.ist eolgrab.idx
+% pdflatex eolgrab.dtx
+% makeindex -s gind.ist eolgrab.idx
+% pdflatex eolgrab.dtx
+%
+% Installation:
+% TDS:tex/generic/oberdiek/eolgrab.sty
+% TDS:doc/latex/oberdiek/eolgrab.pdf
+% TDS:doc/latex/oberdiek/example/eolgrab-example-ltx.tex
+% TDS:doc/latex/oberdiek/example/eolgrab-example-env.tex
+% TDS:doc/latex/oberdiek/example/eolgrab-example-sec.tex
+% TDS:doc/latex/oberdiek/test/eolgrab-test1.tex
+% TDS:doc/latex/oberdiek/test/eolgrab-test2.tex
+% TDS:source/latex/oberdiek/eolgrab.dtx
+%
+%<*ignore>
+\begingroup
+ \catcode123=1 %
+ \catcode125=2 %
+ \def\x{LaTeX2e}%
+\expandafter\endgroup
+\ifcase 0\ifx\install y1\fi\expandafter
+ \ifx\csname processbatchFile\endcsname\relax\else1\fi
+ \ifx\fmtname\x\else 1\fi\relax
+\else\csname fi\endcsname
+%</ignore>
+%<*install>
+\input docstrip.tex
+\Msg{************************************************************************}
+\Msg{* Installation}
+\Msg{* Package: eolgrab 2016/05/16 v1.1 Catch arguments delimited by end of line (HO)}
+\Msg{************************************************************************}
+
+\keepsilent
+\askforoverwritefalse
+
+\let\MetaPrefix\relax
+\preamble
+
+This is a generated file.
+
+Project: eolgrab
+Version: 2016/05/16 v1.1
+
+Copyright (C) 2011 by
+ Heiko Oberdiek <heiko.oberdiek at googlemail.com>
+
+This work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either
+version 1.3c of this license or (at your option) any later
+version. This version of this license is in
+ http://www.latex-project.org/lppl/lppl-1-3c.txt
+and 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 2005/12/01 or later.
+
+This work has the LPPL maintenance status "maintained".
+
+This Current Maintainer of this work is Heiko Oberdiek.
+
+The Base Interpreter refers to any `TeX-Format',
+because some files are installed in TDS:tex/generic//.
+
+This work consists of the main source file eolgrab.dtx
+and the derived files
+ eolgrab.sty, eolgrab.pdf, eolgrab.ins, eolgrab.drv,
+ eolgrab-example-ltx.tex, eolgrab-example-env.tex,
+ eolgrab-example-sec.tex, eolgrab-test1.tex,
+ eolgrab-test2.tex.
+
+\endpreamble
+\let\MetaPrefix\DoubleperCent
+
+\generate{%
+ \file{eolgrab.ins}{\from{eolgrab.dtx}{install}}%
+ \file{eolgrab.drv}{\from{eolgrab.dtx}{driver}}%
+ \usedir{tex/generic/oberdiek}%
+ \file{eolgrab.sty}{\from{eolgrab.dtx}{package}}%
+ \usedir{doc/latex/oberdiek/example}%
+ \file{eolgrab-example-ltx.tex}{\from{eolgrab.dtx}{example-ltx}}%
+ \file{eolgrab-example-env.tex}{\from{eolgrab.dtx}{example-env}}%
+ \file{eolgrab-example-sec.tex}{\from{eolgrab.dtx}{example-sec}}%
+% \usedir{doc/latex/oberdiek/test}%
+% \file{eolgrab-test1.tex}{\from{eolgrab.dtx}{test1}}%
+% \file{eolgrab-test2.tex}{\from{eolgrab.dtx}{test2}}%
+ \nopreamble
+ \nopostamble
+% \usedir{source/latex/oberdiek/catalogue}%
+% \file{eolgrab.xml}{\from{eolgrab.dtx}{catalogue}}%
+}
+
+\catcode32=13\relax% active space
+\let =\space%
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* eolgrab.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file `eolgrab.drv'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{eolgrab.drv}%
+ [2016/05/16 v1.1 Catch arguments delimited by end of line (HO)]%
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}[2011/11/22]
+\begin{document}
+ \DocInput{eolgrab.dtx}%
+\end{document}
+%</driver>
+% \fi
+%
+%
+% \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 \~}
+%
+% \GetFileInfo{eolgrab.drv}
+%
+% \title{The \xpackage{eolgrab} package}
+% \date{2016/05/16 v1.1}
+% \author{Heiko Oberdiek\thanks
+% {Please report any issues at https://github.com/ho-tex/oberdiek/issues}\\
+% \xemail{heiko.oberdiek at googlemail.com}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% This package implements a generic argument grabber
+% to catch an argument that is delimited by the line end.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \urldef\urltexhax\url{http://tug.org/mailman/listinfo/texhax}
+% \def\eol/{^^A
+% \meta{\texttt{EOL}}^^A
+% }
+%
+% \section{Documentation}
+%
+% The starting point for this package was a feature
+% request of Arno Trautmann in the mailing list
+% \texttt{texhax}\footnote{Info page for mailing list
+% \texttt{texhax}: \urltexhax} \cite{trautmann-request}.
+% A macro \cs{eolsection} should behave like \cs{section},
+% but the argument should be delimited by the line end
+% instead of given in curly braces:
+% \begin{quote}
+% |\eolsection My Title|
+% \end{quote}
+% Phil Taylor answered this with an implementation for \cs{eolsection}.
+% Because this feature could be useful for other macros as well,
+% I answered with an implementation of \cs{eolgrab} as general solution
+% \cite{oberdiek-eolgrab}.
+%
+% Both formats \hologo{plainTeX} and \hologo{LaTeX} are supported
+% by the package, see the example for \cs{eolsection} below.
+%
+% \begin{declcs}{eolgrab} \M{code} \meta{argument} \eol/
+% \end{declcs}
+% Macro \cs{eolgrab} takes two arguments. The first argument
+% is \meta{code}, a classical undelimited \hologo{TeX} macro argument.
+% The second argument is delimited by the line end \eol/.
+% The macro calls \meta{code} with \meta{argument} as argument
+% in curly braces. Because the catcode of the line end is changed,
+% \cs{eolgrab} will not work in the argument of other macros.
+% Macro \cs{eolgrab} is made robust if either \hologo{eTeX}'s
+% \cs{protected} or \hologo{LaTeX}'s \cs{DeclareRobustCommand}
+% is available.
+%
+% \begin{declcs}{eolgrabopt} \M{code} \meta{argument} \eol/
+% \end{declcs}
+% Macro \cs{eolgrabopt} passes \meta{argument} as optional
+% argument to \meta{code} if \meta{argument} is not empty.
+% \begin{quote}
+% |\eolgrabopt\item foo|
+% \end{quote}
+% becomes to
+% \begin{quote}
+% |\item[{foo}]|
+% \end{quote}
+% The curly argument braces are added to support square brackets
+% inside \meta{argument}.
+% If the \meta{argument} is empty:
+% \begin{quote}
+% |\eolgrabopt\item|
+% \end{quote}
+% then
+% \begin{quote}
+% |\item|
+% \end{quote}
+% is called without optional argument.
+%
+% \subsection{Examples}
+%
+% \begin{itemize}
+% \item
+% The line
+% \begin{quote}
+% |\eolgrab\section My Title|
+% \end{quote}
+% is equivalent to
+% \begin{quote}
+% |\section{My Title}|
+% \end{quote}
+% \item
+% The next example uses the star form of \cs{section}. Then the
+% command to be called consists of two tokens. Therefore the
+% first argument of \cs{eolgrab} needs curly braces:
+% \begin{quote}
+% |\eolgrab{\section*}My Title|
+% \end{quote}
+% becomes
+% \begin{quote}
+% |\section*{My Title}|
+% \end{quote}
+% \item
+% Now \hologo{LaTeX}'s \cs{PackageError} is used. This macro
+% has three arguments, the package or class name, the message
+% text and the help text. A standard help text of \hologo{LaTeX}
+% is used as given in macro \cs{@ehc}. The second argument,
+% the message text is used as argument, delimited by line end:
+% \begin{quote}
+% |\eolgrab{\PackageError{foobar}}%|\\
+% |Some error message text\MessageBreak%|\\
+% |with several lines|\\
+% |\@ehc|
+% \end{quote}
+% In the first two lines of the example, the line end is suppressed
+% by the comment character (percent), thus the argument is delimited
+% by the line end of the third line. The result is:
+% \begin{quote}
+% |\PackageError{foobar}{Some error message text\MessageBreak|\\
+% |with several lines}\@ehc|
+% \end{quote}
+% \item
+% The original request for macro \cs{eolsection}, see above,
+% can be implemented easily with the help of \cs{eolgrab}.
+% Example for \hologo{LaTeX}:
+% \begin{quote}
+% |\usepackage{eolgrab}|\\
+% |\newcommand*{\eolsection}{\eolgrab\section}|
+% \end{quote}
+% Example for \hologo{plainTeX}:
+% \begin{quote}
+% |\input eolgrab.sty\relax|\\
+% |\def\eolsection{\eolgrab\section}|
+% \end{quote}
+% And a sophisticated variant for \hologo{LaTeX} that also supports
+% the star syntax and the optional argument:
+% \begin{macrocode}
+%<*example-sec>
+\documentclass{article}
+\usepackage{eolgrab}
+\makeatletter
+\newcommand*{\eolsection}{%
+ \@ifstar{%
+ \eolgrab{\section*}%
+ }{%
+ \@ifnextchar[{%
+ \eoloptsection
+ }{%
+ \eolgrab\section
+ }%
+ }%
+}
+\newcommand*{\eoloptsection}[1][]{%
+ \eolgrab{\section[{#1}]}%
+}
+\makeatother
+\begin{document}
+\tableofcontents
+\eolsection Section without star and optional argument
+\eolsection*Section with star
+\eolsection[Short section title]Long section title
+\end{document}
+%</example-sec>
+% \end{macrocode}
+% \end{itemize}
+%
+% \subsubsection{Small \hologo{LaTeX} document as example}
+%
+% \begin{macrocode}
+%<*example-ltx>
+\RequirePackage{eolgrab}
+\eolgrab\documentclass article
+\eolgrab\begin document
+\eolgrab\section Hello World
+\eolgrab\emph Some text
+\eolgrab\end document
+%</example-ltx>
+% \end{macrocode}
+%
+% \subsubsection{\hologo{LaTeX} document with environments}
+%
+% \begin{macrocode}
+%<*example-env>
+\documentclass{article}
+\usepackage{eolgrab}
+\newcommand*{\Begin}{\eolgrab \begin}
+\newcommand*{\End }{\eolgrab \end }
+\newcommand*{\Item }{\eolgrabopt\item }
+\Begin document
+ \Begin itemize
+ \Item
+ first item
+ \Item
+ second item
+ \End itemize
+ \Begin description
+ \Item foo
+ is the first syllable of foobar.
+ \Item bar
+ is the second syllable of foobar.
+ \End description
+\End document
+%</example-env>
+% \end{macrocode}
+%
+% \subsection{Limitations}
+%
+% Macro \cs{eolgrab} needs to catch the line end.
+% If \hologo{TeX} reads a line, then it throws away the line end
+% characters (carriage return, line feed) and removes spaces at the
+% end of the line. Then it adds the character with the character code
+% that is given by \cs{endlinechar} at the end of the line. The category
+% code of the inserted character is given by the current value of
+% its \cs{catcode}. If \cs{endlinechar} is not a valid character code
+% (especially if it is negative), then no character is added.
+%
+% In \hologo{plainTeX} and \hologo{LaTeX} the standard settings
+% of the inserted endline character is the character with code 13
+% (or |^||^||M| in \hologo{TeX} notation) with catcode 5 (end of line).
+% That means the inserted end of line character behaves like a space
+% token. For example, it is removed after macro names. Therefore
+% \cs{eolgrab} changes the catcode.
+%
+% Therefore \cs{eolgrab} has some limitations:
+% \begin{itemize}
+% \item
+% Like other verbatim stuff, the macro \cs{eolgrab} cannot be
+% used in the argument of other macros. \cs{eolgrab} want to
+% change the catcode of the end of line character. If this
+% character is read before, because it is processed as argument
+% of another macro, the catcode is already set and is not reassigned
+% later if \cs{eolgrab} changes the category code for this character
+% code.
+% \item
+% The argument must not contain the end of line character.
+% Otherwise the first end of line character is already taken
+% as delimiter, leaving the rest of the line outside the argument.
+% \item
+% Because \cs{eolgrab} is probably mostly used in the line with
+% the delimited argument. Therefore changes of \cs{endlinechar}
+% will not affect the current line.
+% \end{itemize}
+%
+% \StopEventually{
+% }
+%
+% \section{Implementation}
+%
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+%
+% \subsection{Reload check and package identification}
+% Reload check, especially if the package is not used with \LaTeX.
+% \begin{macrocode}
+\begingroup\catcode61\catcode48\catcode32=10\relax%
+ \catcode13=5 % ^^M
+ \endlinechar=13 %
+ \catcode35=6 % #
+ \catcode39=12 % '
+ \catcode44=12 % ,
+ \catcode45=12 % -
+ \catcode46=12 % .
+ \catcode58=12 % :
+ \catcode64=11 % @
+ \catcode123=1 % {
+ \catcode125=2 % }
+ \expandafter\let\expandafter\x\csname ver@eolgrab.sty\endcsname
+ \ifx\x\relax % plain-TeX, first loading
+ \else
+ \def\empty{}%
+ \ifx\x\empty % LaTeX, first loading,
+ % variable is initialized, but \ProvidesPackage not yet seen
+ \else
+ \expandafter\ifx\csname PackageInfo\endcsname\relax
+ \def\x#1#2{%
+ \immediate\write-1{Package #1 Info: #2.}%
+ }%
+ \else
+ \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
+ \fi
+ \x{eolgrab}{The package is already loaded}%
+ \aftergroup\endinput
+ \fi
+ \fi
+\endgroup%
+% \end{macrocode}
+% Package identification:
+% \begin{macrocode}
+\begingroup\catcode61\catcode48\catcode32=10\relax%
+ \catcode13=5 % ^^M
+ \endlinechar=13 %
+ \catcode35=6 % #
+ \catcode39=12 % '
+ \catcode40=12 % (
+ \catcode41=12 % )
+ \catcode44=12 % ,
+ \catcode45=12 % -
+ \catcode46=12 % .
+ \catcode47=12 % /
+ \catcode58=12 % :
+ \catcode64=11 % @
+ \catcode91=12 % [
+ \catcode93=12 % ]
+ \catcode123=1 % {
+ \catcode125=2 % }
+ \expandafter\ifx\csname ProvidesPackage\endcsname\relax
+ \def\x#1#2#3[#4]{\endgroup
+ \immediate\write-1{Package: #3 #4}%
+ \xdef#1{#4}%
+ }%
+ \else
+ \def\x#1#2[#3]{\endgroup
+ #2[{#3}]%
+ \ifx#1\@undefined
+ \xdef#1{#3}%
+ \fi
+ \ifx#1\relax
+ \xdef#1{#3}%
+ \fi
+ }%
+ \fi
+\expandafter\x\csname ver@eolgrab.sty\endcsname
+\ProvidesPackage{eolgrab}%
+ [2016/05/16 v1.1 Catch arguments delimited by end of line (HO)]%
+% \end{macrocode}
+%
+% \subsection{Catcodes}
+%
+% \begin{macrocode}
+\begingroup\catcode61\catcode48\catcode32=10\relax%
+ \catcode13=5 % ^^M
+ \endlinechar=13 %
+ \catcode123=1 % {
+ \catcode125=2 % }
+ \catcode64=11 % @
+ \def\x{\endgroup
+ \expandafter\edef\csname eolgrab@AtEnd\endcsname{%
+ \endlinechar=\the\endlinechar\relax
+ \catcode13=\the\catcode13\relax
+ \catcode32=\the\catcode32\relax
+ \catcode35=\the\catcode35\relax
+ \catcode61=\the\catcode61\relax
+ \catcode64=\the\catcode64\relax
+ \catcode123=\the\catcode123\relax
+ \catcode125=\the\catcode125\relax
+ }%
+ }%
+\x\catcode61\catcode48\catcode32=10\relax%
+\catcode13=5 % ^^M
+\endlinechar=13 %
+\catcode35=6 % #
+\catcode64=11 % @
+\catcode123=1 % {
+\catcode125=2 % }
+\def\TMP@EnsureCode#1#2{%
+ \edef\eolgrab@AtEnd{%
+ \eolgrab@AtEnd
+ \catcode#1=\the\catcode#1\relax
+ }%
+ \catcode#1=#2\relax
+}
+\TMP@EnsureCode{40}{12}% (
+\TMP@EnsureCode{41}{12}% )
+\TMP@EnsureCode{42}{12}% *
+\TMP@EnsureCode{46}{12}% .
+\TMP@EnsureCode{47}{12}% /
+\TMP@EnsureCode{91}{12}% [
+\TMP@EnsureCode{93}{12}% ]
+\TMP@EnsureCode{94}{7}% ^
+\edef\eolgrab@AtEnd{\eolgrab@AtEnd\noexpand\endinput}
+% \end{macrocode}
+%
+% \subsection{Resources}
+%
+% \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname RequirePackage\endcsname\relax
+ \input ltxcmds.sty\relax
+ \input infwarerr.sty\relax
+\else
+ \RequirePackage{ltxcmds}[2010/12/04]%
+ \RequirePackage{infwarerr}[2010/04/08]%
+\fi
+% \end{macrocode}
+%
+% \begin{macro}{\eolgrab@ifdefinable}
+% \begin{macrocode}
+\ltx@IfUndefined{@ifdefinable}{%
+ \def\eolgrab@ifdefinable#1#2{%
+ \ltx@ifundefined{#1}{#2}{%
+ \@PackageError{eolgrab}{%
+ Command \ltx@backslashchar#1 already defined%
+ }\@ehc
+ }%
+ }%
+}{%
+ \def\eolgrab@ifdefinable#1{%
+ \expandafter\@ifdefinable\csname#1\endcsname
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Macro \cs{eolgrab}}
+%
+% \begin{macro}{\eolgrab}
+% \begin{macrocode}
+\eolgrab@ifdefinable{eolgrab}{%
+ \ltx@IfUndefined{protected}{%
+ \ltx@IfUndefined{DeclareRobustCommand}{%
+ \def\eolgrab#1%
+ }{%
+ \newcommand\eolgrab{}%
+ \DeclareRobustCommand*\eolgrab
+ }%
+ }{%
+ \protected\def\eolgrab#1%
+ }{%
+ \begingroup
+ \endlinechar=13 %
+ \catcode13=\ltx@active
+ \eolgrab@{#1}%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\eolgrabopt}
+% \begin{macrocode}
+\eolgrab@ifdefinable{eolgrabopt}{%
+ \ltx@IfUndefined{protected}{%
+ \ltx@IfUndefined{DeclareRobustCommand}{%
+ \def\eolgrabopt#1%
+ }{%
+ \newcommand\eolgrabopt{}%
+ \DeclareRobustCommand*\eolgrabopt
+ }%
+ }{%
+ \protected\def\eolgrabopt#1%
+ }{%
+ \begingroup
+ \endlinechar=13 %
+ \catcode13=\ltx@active
+ \eolgrab@opt{#1}%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+\begingroup
+ \catcode13=\ltx@active %
+\ltx@firstofone{\endgroup %
+% \end{macrocode}
+% \begin{macro}{\eolgrab@}
+% \begin{macrocode}
+ \def\eolgrab@#1#2^^M{%
+ \endgroup %
+ #1{#2}%
+ }%
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\eolgrab@opt}
+% \begin{macrocode}
+ \def\eolgrab@opt#1#2^^M{%
+ \endgroup %
+ \ltx@ifempty{#2}{%
+ #1%
+ }{%
+ #1[{#2}]%
+ }%
+ }%
+% \end{macrocode}
+% \end{macro}
+% \begin{macrocode}
+}%
+% \end{macrocode}
+%
+% \begin{macrocode}
+\eolgrab@AtEnd%
+% \end{macrocode}
+% \begin{macrocode}
+%</package>
+% \end{macrocode}
+%
+% \section{Test}
+%
+% \subsection{Catcode checks for loading}
+%
+% \begin{macrocode}
+%<*test1>
+% \end{macrocode}
+% \begin{macrocode}
+\catcode`\{=1 %
+\catcode`\}=2 %
+\catcode`\#=6 %
+\catcode`\@=11 %
+\expandafter\ifx\csname count@\endcsname\relax
+ \countdef\count@=255 %
+\fi
+\expandafter\ifx\csname @gobble\endcsname\relax
+ \long\def\@gobble#1{}%
+\fi
+\expandafter\ifx\csname @firstofone\endcsname\relax
+ \long\def\@firstofone#1{#1}%
+\fi
+\expandafter\ifx\csname loop\endcsname\relax
+ \expandafter\@firstofone
+\else
+ \expandafter\@gobble
+\fi
+{%
+ \def\loop#1\repeat{%
+ \def\body{#1}%
+ \iterate
+ }%
+ \def\iterate{%
+ \body
+ \let\next\iterate
+ \else
+ \let\next\relax
+ \fi
+ \next
+ }%
+ \let\repeat=\fi
+}%
+\def\RestoreCatcodes{}
+\count@=0 %
+\loop
+ \edef\RestoreCatcodes{%
+ \RestoreCatcodes
+ \catcode\the\count@=\the\catcode\count@\relax
+ }%
+\ifnum\count@<255 %
+ \advance\count@ 1 %
+\repeat
+
+\def\RangeCatcodeInvalid#1#2{%
+ \count@=#1\relax
+ \loop
+ \catcode\count@=15 %
+ \ifnum\count@<#2\relax
+ \advance\count@ 1 %
+ \repeat
+}
+\def\RangeCatcodeCheck#1#2#3{%
+ \count@=#1\relax
+ \loop
+ \ifnum#3=\catcode\count@
+ \else
+ \errmessage{%
+ Character \the\count@\space
+ with wrong catcode \the\catcode\count@\space
+ instead of \number#3%
+ }%
+ \fi
+ \ifnum\count@<#2\relax
+ \advance\count@ 1 %
+ \repeat
+}
+\def\space{ }
+\expandafter\ifx\csname LoadCommand\endcsname\relax
+ \def\LoadCommand{\input eolgrab.sty\relax}%
+\fi
+\def\Test{%
+ \RangeCatcodeInvalid{0}{47}%
+ \RangeCatcodeInvalid{58}{64}%
+ \RangeCatcodeInvalid{91}{96}%
+ \RangeCatcodeInvalid{123}{255}%
+ \catcode`\@=12 %
+ \catcode`\\=0 %
+ \catcode`\%=14 %
+ \LoadCommand
+ \RangeCatcodeCheck{0}{36}{15}%
+ \RangeCatcodeCheck{37}{37}{14}%
+ \RangeCatcodeCheck{38}{47}{15}%
+ \RangeCatcodeCheck{48}{57}{12}%
+ \RangeCatcodeCheck{58}{63}{15}%
+ \RangeCatcodeCheck{64}{64}{12}%
+ \RangeCatcodeCheck{65}{90}{11}%
+ \RangeCatcodeCheck{91}{91}{15}%
+ \RangeCatcodeCheck{92}{92}{0}%
+ \RangeCatcodeCheck{93}{96}{15}%
+ \RangeCatcodeCheck{97}{122}{11}%
+ \RangeCatcodeCheck{123}{255}{15}%
+ \RestoreCatcodes
+}
+\Test
+\csname @@end\endcsname
+\end
+% \end{macrocode}
+% \begin{macrocode}
+%</test1>
+% \end{macrocode}
+%
+% \subsection{Tests for \hologo{plainTeX}}
+%
+% \begin{macrocode}
+%<*test2>
+\input eolgrab.sty\relax
+\catcode`\{=1 %
+\catcode`\}=2 %
+\eolgrab{\immediate\write16}Hello World
+\def\TestExpected{foo bar}
+\eolgrab{\def\TestResult}foo bar
+
+\ifx\TestExpected\TestResult
+ \immediate\write16{* Ok (foo bar)}%
+\else
+ \errmessage{Test failed (foo bar)}%
+\fi
+
+\begingroup
+ \def\TestExpected{foobar}%
+ \endlinechar=-1 %
+ \eolgrab{\def\TestResult}foo
+ bar
+ ^^M
+ \ifx\TestExpected\TestResult
+ \immediate\write16{* Ok (foobar)}%
+ \else
+ \errmessage{Test failed (foobar)}%
+ \fi
+\endgroup
+
+\csname @@end\endcsname\end
+%</test2>
+% \end{macrocode}
+%
+% \section{Installation}
+%
+% \subsection{Download}
+%
+% \paragraph{Package.} This package is available on
+% CTAN\footnote{\url{http://ctan.org/pkg/eolgrab}}:
+% \begin{description}
+% \item[\CTAN{macros/latex/contrib/oberdiek/eolgrab.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/oberdiek/eolgrab.pdf}] Documentation.
+% \end{description}
+%
+%
+% \paragraph{Bundle.} All the packages of the bundle `oberdiek'
+% are also available in a TDS compliant ZIP archive. There
+% the packages are already unpacked and the documentation files
+% are generated. The files and directories obey the TDS standard.
+% \begin{description}
+% \item[\CTAN{install/macros/latex/contrib/oberdiek.tds.zip}]
+% \end{description}
+% \emph{TDS} refers to the standard ``A Directory Structure
+% for \TeX\ Files'' (\CTAN{tds/tds.pdf}). Directories
+% with \xfile{texmf} in their name are usually organized this way.
+%
+% \subsection{Bundle installation}
+%
+% \paragraph{Unpacking.} Unpack the \xfile{oberdiek.tds.zip} in the
+% TDS tree (also known as \xfile{texmf} tree) of your choice.
+% Example (linux):
+% \begin{quote}
+% |unzip oberdiek.tds.zip -d ~/texmf|
+% \end{quote}
+%
+% \paragraph{Script installation.}
+% Check the directory \xfile{TDS:scripts/oberdiek/} for
+% scripts that need further installation steps.
+% Package \xpackage{attachfile2} comes with the Perl script
+% \xfile{pdfatfi.pl} that should be installed in such a way
+% that it can be called as \texttt{pdfatfi}.
+% Example (linux):
+% \begin{quote}
+% |chmod +x scripts/oberdiek/pdfatfi.pl|\\
+% |cp scripts/oberdiek/pdfatfi.pl /usr/local/bin/|
+% \end{quote}
+%
+% \subsection{Package installation}
+%
+% \paragraph{Unpacking.} The \xfile{.dtx} file is a self-extracting
+% \docstrip\ archive. The files are extracted by running the
+% \xfile{.dtx} through \plainTeX:
+% \begin{quote}
+% \verb|tex eolgrab.dtx|
+% \end{quote}
+%
+% \paragraph{TDS.} Now the different files must be moved into
+% the different directories in your installation TDS tree
+% (also known as \xfile{texmf} tree):
+% \begin{quote}
+% \def\t{^^A
+% \begin{tabular}{@{}>{\ttfamily}l@{ $\rightarrow$ }>{\ttfamily}l@{}}
+% eolgrab.sty & tex/generic/oberdiek/eolgrab.sty\\
+% eolgrab.pdf & doc/latex/oberdiek/eolgrab.pdf\\
+% example/eolgrab-example-ltx.tex & doc/latex/oberdiek/example/eolgrab-example-ltx.tex\\
+% example/eolgrab-example-env.tex & doc/latex/oberdiek/example/eolgrab-example-env.tex\\
+% example/eolgrab-example-sec.tex & doc/latex/oberdiek/example/eolgrab-example-sec.tex\\
+% test/eolgrab-test1.tex & doc/latex/oberdiek/test/eolgrab-test1.tex\\
+% test/eolgrab-test2.tex & doc/latex/oberdiek/test/eolgrab-test2.tex\\
+% eolgrab.dtx & source/latex/oberdiek/eolgrab.dtx\\
+% \end{tabular}^^A
+% }^^A
+% \sbox0{\t}^^A
+% \ifdim\wd0>\linewidth
+% \begingroup
+% \advance\linewidth by\leftmargin
+% \advance\linewidth by\rightmargin
+% \edef\x{\endgroup
+% \def\noexpand\lw{\the\linewidth}^^A
+% }\x
+% \def\lwbox{^^A
+% \leavevmode
+% \hbox to \linewidth{^^A
+% \kern-\leftmargin\relax
+% \hss
+% \usebox0
+% \hss
+% \kern-\rightmargin\relax
+% }^^A
+% }^^A
+% \ifdim\wd0>\lw
+% \sbox0{\small\t}^^A
+% \ifdim\wd0>\linewidth
+% \ifdim\wd0>\lw
+% \sbox0{\footnotesize\t}^^A
+% \ifdim\wd0>\linewidth
+% \ifdim\wd0>\lw
+% \sbox0{\scriptsize\t}^^A
+% \ifdim\wd0>\linewidth
+% \ifdim\wd0>\lw
+% \sbox0{\tiny\t}^^A
+% \ifdim\wd0>\linewidth
+% \lwbox
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \end{quote}
+% If you have a \xfile{docstrip.cfg} that configures and enables \docstrip's
+% TDS installing feature, then some files can already be in the right
+% place, see the documentation of \docstrip.
+%
+% \subsection{Refresh file name databases}
+%
+% If your \TeX~distribution
+% (\teTeX, \mikTeX, \dots) relies on file name databases, you must refresh
+% these. For example, \teTeX\ users run \verb|texhash| or
+% \verb|mktexlsr|.
+%
+% \subsection{Some details for the interested}
+%
+% \paragraph{Attached source.}
+%
+% The PDF documentation on CTAN also includes the
+% \xfile{.dtx} source file. It can be extracted by
+% AcrobatReader 6 or higher. Another option is \textsf{pdftk},
+% e.g. unpack the file into the current directory:
+% \begin{quote}
+% \verb|pdftk eolgrab.pdf unpack_files output .|
+% \end{quote}
+%
+% \paragraph{Unpacking with \LaTeX.}
+% The \xfile{.dtx} chooses its action depending on the format:
+% \begin{description}
+% \item[\plainTeX:] Run \docstrip\ and extract the files.
+% \item[\LaTeX:] Generate the documentation.
+% \end{description}
+% If you insist on using \LaTeX\ for \docstrip\ (really,
+% \docstrip\ does not need \LaTeX), then inform the autodetect routine
+% about your intention:
+% \begin{quote}
+% \verb|latex \let\install=y\input{eolgrab.dtx}|
+% \end{quote}
+% Do not forget to quote the argument according to the demands
+% of your shell.
+%
+% \paragraph{Generating the documentation.}
+% You can use both the \xfile{.dtx} or the \xfile{.drv} to generate
+% the documentation. The process can be configured by the
+% configuration file \xfile{ltxdoc.cfg}. For instance, put this
+% line into this file, if you want to have A4 as paper format:
+% \begin{quote}
+% \verb|\PassOptionsToClass{a4paper}{article}|
+% \end{quote}
+% An example follows how to generate the
+% documentation with pdf\LaTeX:
+% \begin{quote}
+%\begin{verbatim}
+%pdflatex eolgrab.dtx
+%makeindex -s gind.ist eolgrab.idx
+%pdflatex eolgrab.dtx
+%makeindex -s gind.ist eolgrab.idx
+%pdflatex eolgrab.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \section{Catalogue}
+%
+% The following XML file can be used as source for the
+% \href{http://mirror.ctan.org/help/Catalogue/catalogue.html}{\TeX\ Catalogue}.
+% The elements \texttt{caption} and \texttt{description} are imported
+% from the original XML file from the Catalogue.
+% The name of the XML file in the Catalogue is \xfile{eolgrab.xml}.
+% \begin{macrocode}
+%<*catalogue>
+<?xml version='1.0' encoding='us-ascii'?>
+<!DOCTYPE entry SYSTEM 'catalogue.dtd'>
+<entry datestamp='$Date$' modifier='$Author$' id='eolgrab'>
+ <name>eolgrab</name>
+ <caption>Catch arguments delimited by end of line.</caption>
+ <authorref id='auth:oberdiek'/>
+ <copyright owner='Heiko Oberdiek' year='2011'/>
+ <license type='lppl1.3'/>
+ <version number='1.1'/>
+ <description>
+ The package defines the command <tt>\eolgrab</tt> that reads an
+ string terminated by end of line, and then calls a macro with that
+ string as argument. Thus
+ <pre>\eolgrab\section My title</pre> is equivalent to
+ <pre>\section{My title}</pre>
+ <p/>
+ A second command <tt>\eolgrabopt</tt> provides the string as an
+ optional argument (which is useful for <tt>\item</tt>, for example).
+ <p/>
+ The package is part of the <xref refid='oberdiek'>oberdiek</xref> bundle.
+ </description>
+ <documentation details='Package documentation'
+ href='ctan:/macros/latex/contrib/oberdiek/eolgrab.pdf'/>
+ <ctan file='true' path='/macros/latex/contrib/oberdiek/eolgrab.dtx'/>
+ <miktex location='oberdiek'/>
+ <texlive location='oberdiek'/>
+ <install path='/macros/latex/contrib/oberdiek/oberdiek.tds.zip'/>
+</entry>
+%</catalogue>
+% \end{macrocode}
+%
+% \begin{thebibliography}{9}
+% \raggedright
+% \bibitem{trautmann-request}
+% Arno Trautmann,
+% \textit{[texhax] read argument until EOL};
+% mailing list \texttt{texthax@tug.org},
+% 2011-01-06;
+% \url{http://tug.org/pipermail/texhax/2011-January/016517.html}.
+%
+% \bibitem{taylor}
+% Philip Taylor,
+% \textit{Re: [texhax] read argument until EOL};
+% mailing list \texttt{texhax@tug.org},
+% 2011-01-06;
+% \url{http://tug.org/pipermail/texhax/2011-January/016519.html}.
+%
+% \bibitem{oberdiek-eolgrab}
+% Heiko Oberdiek,
+% \textit{Re: [texhax] read argument until EOL};
+% mailing list \texttt{texhax@tug.org},
+% 2011-01-06;
+% \url{http://tug.org/pipermail/texhax/2011-January/016526.html}.
+%
+% \end{thebibliography}
+%
+% \begin{History}
+% \begin{Version}{2011/01/12 v1.0}
+% \item
+% First public version.
+% \end{Version}
+% \begin{Version}{2016/05/16 v1.1}
+% \item
+% Documentation updates.
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput