Re: Problems with xelatex/miktex [Errorcode: TeX capacity exceeded, sorry [main memory size=3000000].]

BTW, it seems to me that
> \renewcommandx*{\chapter}[6][1,2,3,4]{% 1: alternativer TOC-Eintrag, 2: alternativer "TOC-Autor", 3: alternative Kopfzeile, 4: alternativer Autor in der Kopfzeile 5: Titel, 6: Autor
> \setcounter{footnote}{0}
> \ifthenelse{\isempty{#1}}%ifelsethen1.if
> {%ifelsethen1.then START:
> \ifthenelse{\isempty{#6}}%ifthenelse1.1.if
> {\addchap[\normalsize #5]{#5}\addtocontents{toc}{\vspace*{2pt}}}%ifthenelse1.1.then
> {\addchap[\normalsize #5 {\footnotesize\textit{(#6)}}]{#5}\addtocontents{toc}{\vspace*{2pt}}}%ifthenelse1.1.else
> }%ifelsethen1.then STOP
> {%ifelsethen1.else START:
> \ifthenelse{\isempty{#6}}%ifthenelse1.2.if
> {\addchap[\normalsize #5]{#5}\addtocontents{toc}{\vspace*{2pt}}}%ifthenelse1.2.then
> {%ifelsethen1.2.else START:
> \ifthenelse{\isempty{#2}}%ifthenelse1.2.1.if
> {\addchap[\normalsize #1 {\footnotesize\textit{(#6)}}]{#5}\addtocontents{toc}{\vspace*{2pt}}}%ifthenelse1.2.1.then
> {\addchap[\normalsize #1 {\footnotesize\textit{(#2)}}]{#5}\addtocontents{toc}{\vspace*{2pt}}}%ifthenelse1.2.1.else
> }%ifelsethen1.2.else STOP
> }%ifelsethen1.else STOP
> 
> %\vspace*{28pt}
> \setcounter{section}{0}
> \ifthenelse{\isempty{#6}}
> {}
> {\centerline{{\Large\textit{#6}}}%
> \ifthenelse{\isempty{#4}}
> {\TextAuthor{#6}}
> {\TextAuthor{#4}}
> \ifthenelse{\isempty{#3}}
> {\ifthenelse{\isempty{#2}}
> {\TextTitel{#5}}
> {\TextTitel{#1}}}
> {\TextTitel{#3}}
> \vspace*{26pt}}
> }

(missing indents probably due to the digest that I receive as HTML)
can be put more clearly about as this (including the later idea 
not to redefine \¢hapteer):

\newcommand*{\IfEmpty}[1]{\ifthenelse{\isempty{#1}}}
%% ... or with ifmtarg.sty instead of ifthen.sty:
\newcommand*{\IfEmpty}{\@ifmtarg}
\newcommand*{\AddAuthor}[1]{ {\footnotesize\textit{(#1)}}}
%% use \AddChapter instead of \chapter:
\newcommandx*{\AddChapter}...
...
\addchap[\normalsize\IfEmpty{#1}{#5}{#1}%
         \IfEmpty{#1}%
                 {\IfEmpty{#6}{}{\AddAuthor{#6}}}%
                 {\AddAuthor{\IfEmpty{#2}{#6}{#2}}}%
        ]%
        {#5}%
\addtoc...{...{2pt}}%
...
\IfEmpty{#6}{}{\centerline{\Large\textit{#6}}}%
\TextAuthor{\IfEmpty{#4}{#6}{#4}}%
\TextTitel {\IfEmpty{#3}%
                    {\IfEmpty{#2}{#5}{#1}}%
                    {#3}}%
...
}

I am attaching this also for those who don't see my indents above.

Cheers,

    Uwe.

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