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Message from discussion auf vorhandensein der option "draft" pruefen
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Heiko Oberdiek  
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 More options Dec 28 1999, 3:00 am
Newsgroups: de.comp.text.tex
From: oberd...@ruf.uni-freiburg.de (Heiko Oberdiek)
Date: 1999/12/28
Subject: Re: auf vorhandensein der option "draft" pruefen
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On Mon, 27 Dec 99 22:55:42 +0100, m...@dream.kn-bremen.de (Martin

Schroeder) wrote:
>In <3867CD41.37D30...@wimmer.net> Thomas Wimmer <tho...@wimmer.net> writes:
>>Wie lautet die Bedingung (bei benutzung des ifthen-paketes), wenn
>>ich auf Vorhandensein der Option "draft" bei \documentclass pruefen
>>will ?

>Ein Blick in classes.dtx verr"at, da"s die draft-Option nur die
>\overfullrule setzt. Es wird kein Schalter definiert, der dann abgefragt
>werden kann. Man k"onnte aber nat"urlich leicht eine Package bauen, die
>eine Draft-Option hat, die einen entsprechenden Schalter setzt...

%%% cut %%% ifdraft.sty %%% cut %%%
% File:        ifdraft.sty
% Version:     1999/12/29 v1.0
% Author:      Heiko Oberdiek
%
% Function:    Switch for option draft.
%
% Copyright:   Copyright (C) 1999 Heiko Oberdiek.
%
%              This program may be distributed and/or modified under
%              the conditions of the LaTeX Project Public License,
%              either version 1.1 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 1.1 or later is part of all distributions
%              of LaTeX version 1999/06/01 or later.
%
% Use:         \usepackage{ifdraft}
%              \ifdraft{<draft case>}{<final case>}
%
% History:     1999/12/28 v1.0: first public release
%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{ifdraft}[1999/12/28 v1.0 Switch for option draft
(HO)]
\newif\if@draft
\DeclareOption{draft}{\@drafttrue}
\DeclareOption{final}{\@draftfalse}
\ProcessOptions
\newcommand*{\ifdraft}{%
  \if@draft
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi
}

\endinput
%%% cut %%% ifdraft.sty %%% cut %%%

%%% cut %%% test1.tex %%% cut %%%
\documentclass[draft]{article}
\usepackage{ifdraft}
\ifdraft{%
  \typeout{*DRAFT=TRUE*}%

}{%

  \typeout{*DRAFT=FALSE*}%
}

\begin{document}
\end{document}
%%% cut %%% test1.tex %%% cut %%%

>Oder tief in den Eingeweiden des LaTeX-Kernels w"uhlen, um Optionen
>abzufragen...

Wenn der Klassennamen bekannt ist, kommt man noch mit moderaten
Internas aus (funktioniert so aber nur vor \begin{document} wegen
\@onlypreamble\@ifclasswith):

%%% cut %%% test2.tex %%% cut %%%
\documentclass[draft]{article}
\makeatletter
\newcommand*{\ifwithdraft}[1]{%
  \@ifclasswith{#1}{final}\@secondoftwo{%
    \@ifclasswith{#1}{draft}\@firstoftwo\@secondoftwo
  }%

}

\makeatother
\ifwithdraft{article}{%
  \typeout{*DRAFT ON*}%
}{%

  \typeout{*DRAFT OFF*}%
}%

\begin{document}
\end{document}
%%% cut %%% test2.tex %%% cut %%%

Eine naechste Variante kommt ohne Klassennamen aus, verwendet aber
dafuer schon tiefere Internas (ebenfalls so nur vor \begin{document}
verwendbar):

%%% cut %%% test3.tex %%% cut %%%
\documentclass[draft]{article}
\makeatletter
\newcommand*{\ifoptiondraft}{%
  \expandafter
  \@if@pti@ns\expandafter{\@classoptionslist}{final}%
    \@secondoftwo{%
      \expandafter
      \@if@pti@ns\expandafter{\@classoptionslist}{draft}%
        \@firstoftwo\@secondoftwo
    }%

}

\makeatother
\ifoptiondraft{%
  \typeout{*DRAFT ON*}%
}{%

  \typeout{*DRAFT OFF*}%
}%

\begin{document}
\end{document}
%%% cut %%% test3.tex %%% cut %%%

Viele Gruesse
  Heiko <oberd...@ruf.uni-freiburg.de>


 
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