diff options
Diffstat (limited to 'Master/texmf-dist/source/latex/extract')
-rw-r--r-- | Master/texmf-dist/source/latex/extract/extract.dtx | 91 |
1 files changed, 65 insertions, 26 deletions
diff --git a/Master/texmf-dist/source/latex/extract/extract.dtx b/Master/texmf-dist/source/latex/extract/extract.dtx index 42aa96f4c5b..801a9834338 100644 --- a/Master/texmf-dist/source/latex/extract/extract.dtx +++ b/Master/texmf-dist/source/latex/extract/extract.dtx @@ -16,7 +16,7 @@ % extract.sty % %% --------------------------------------- -%% Copyright (C) 2004-2005 Hendri Adriaens +%% Copyright (C) 2004-2019 Hendri Adriaens %% --------------------------------------- %% %% This work may be distributed and/or modified under the @@ -109,7 +109,7 @@ of the package. % % \GetFileInfo{extract.sty} % -% \CheckSum{1011} +% \CheckSum{1069} % % \DoNotIndex{\@backslashchar,\@bsphack,\@checkend,\@currenvir, % \@currenvline,\@doendpe,\@eha,\@ehc,\@empty,\@endpefalse,\@esphack, @@ -920,7 +920,7 @@ of the package. %<*extract> \NeedsTeXFormat{LaTeX2e}[1995/12/01] \ProvidesPackage{extract} - [2019/09/17 v1.9 extract content from document (HA)] + [2019/09/18 v1.9a extract content from document (HA)] \RequirePackage{verbatim} \RequirePackage{xkeyval} \newwrite\XTR@out @@ -1086,47 +1086,50 @@ of the package. % \end{macro} % \begin{macro}{\begin} % \marg{environment}\\ -% \changes{v1.9}{2019/09/17}{Changed definition to robust version} +% \changes{v1.9a}{2019/09/18}{Added definitions for robust versions of \cs{begin} and \cs{end}} % Modify the macro |\begin| to allow adding code to a level specific % hook which can be executed after |\endgroup| in |\end|. See for -% more info on this macro the \LaTeX\ source~\cite{LaTeXbase}. -% \begin{macrocode} -\@namedef{begin}#1{% - \@ifundefined{#1}% - {\def\reserved@a{\@latex@error{Environment #1 undefined}\@eha}}% - {\def\reserved@a{\def\@currenvir{#1}% - \edef\@currenvline{\on@line}% - \csname #1\endcsname}}% - \@ignorefalse - \begingroup\@endpefalse +% more info on this macro the \LaTeX\ source~\cite{LaTeXbase}. We first do this +% for the new \LaTeX\ format, which defines robust versions of |\begin| and |\end|. +% \begin{macrocode} +\@ifl@t@r\fmtversion{2019/10/01}% +{% new format + \@namedef{begin }#1{% + \@ifundefined{#1}% + {\def\reserved@a{\@latex@error{Environment #1 undefined}\@eha}}% + {\def\reserved@a{\def\@currenvir{#1}% + \edef\@currenvline{\on@line}% + \csname #1\endcsname}}% + \@ignorefalse + \begingroup\@endpefalse % \end{macrocode} % Advance depth level. % \begin{macrocode} - \global\advance\@envdepth\@ne + \global\advance\@envdepth\@ne % \end{macrocode} % Initialize the hook for this level. % \begin{macrocode} - \global\@namedef{@afterendenvhook@\romannumeral\@envdepth}{}% - \reserved@a} + \global\@namedef{@afterendenvhook@\romannumeral\@envdepth}{}% + \reserved@a + }% % \end{macrocode} % \end{macro} % \begin{macro}{\end} % \marg{environment}\\ -% \changes{v1.9}{2019/09/17}{Changed definition to robust version} % Modify |\end| to execute the code collected in the hook. % \begin{macrocode} -\@namedef{end}#1{% - \csname end#1\endcsname\@checkend{#1}% - \expandafter\endgroup\if@endpe\@doendpe\fi + \@namedef{end }#1{% + \csname end#1\endcsname\@checkend{#1}% + \expandafter\endgroup\if@endpe\@doendpe\fi % \end{macrocode} % Copy current hook code to a temporary macro. % \begin{macrocode} - \expandafter\let\expandafter\reserved@a - \csname @afterendenvhook@\romannumeral\@envdepth\endcsname + \expandafter\let\expandafter\reserved@a + \csname @afterendenvhook@\romannumeral\@envdepth\endcsname % \end{macrocode} % Decrease the depth. % \begin{macrocode} - \global\advance\@envdepth\m@ne + \global\advance\@envdepth\m@ne % \end{macrocode} % Execute the hook of the current environment. This is done after % decreasing the depth as to avoid level mixing problems when the @@ -1135,8 +1138,44 @@ of the package. % defined since it is executed after the group and does not belong % anymore to the environment in which the hook was defined. % \begin{macrocode} - \reserved@a\relax - \if@ignore\@ignorefalse\ignorespaces\fi} + \reserved@a\relax + \if@ignore\@ignorefalse\ignorespaces\fi + }% +% \end{macrocode} +% \end{macro} +% \begin{macro}{\begin} +% \marg{environment}\\ +% This is the code for the old format of \LaTeX. +% \begin{macrocode} +}{% old format + \def\begin#1{% + \@ifundefined{#1}% + {\def\reserved@a{\@latex@error{Environment #1 undefined}\@eha}}% + {\def\reserved@a{\def\@currenvir{#1}% + \edef\@currenvline{\on@line}% + \csname #1\endcsname}}% + \@ignorefalse + \begingroup\@endpefalse + \global\advance\@envdepth\@ne + \global\@namedef{@afterendenvhook@\romannumeral\@envdepth}{}% + \reserved@a + }% +% \end{macrocode} +% \end{macro} +% \begin{macro}{\end} +% \marg{environment} +% This is the code for the old format of \LaTeX. +% \begin{macrocode} + \def\end#1{% + \csname end#1\endcsname\@checkend{#1}% + \expandafter\endgroup\if@endpe\@doendpe\fi + \expandafter\let\expandafter\reserved@a + \csname @afterendenvhook@\romannumeral\@envdepth\endcsname + \global\advance\@envdepth\m@ne + \reserved@a\relax + \if@ignore\@ignorefalse\ignorespaces\fi + }% +} % \end{macrocode} % \end{macro} % \begin{macro}{\AfterEndEnv} |