Nomenclature Package and Appendices

Question

There are a lot of similar posts to this but I have yet to find one that correctly solves my issue. The tl;dr is: How do I make nomenclature produce only a list of variables without producing a new chapter?

Long version:

I want to use the nomencl package to create a sorted list of variables in the first appendix chapter of my thesis. I am writing in Overleaf.

The appendix package works fine on its own. In my main .tex file, I have

\include{introduction}
...
\include{conclusion}
\appendix
\include{appa}
\include{appb}
\include{biblio}
\end{document}

My appendix files appa and appb both start with a chapter title. For example, appb begins with \chapter{Figures} which displays on the page as

and in the table of contents as

The nomenclature package on its own works just fine. I define all of my variables and a new chapter containing a list appears where I place \printnomenclature. I only want the list though. It should appear on the page as

Appendix A

Nomenclature

(list of nomenclature)

Because \printnomenclature starts a new chapter, if I write

\chapter{Nomenclature}
\printnomenclature

in appa I end up with

with Chapter A: Nomenclature on page 55 and the list actually on page 57. It only appears in the ToC because I included [intoc] for the sake of illustration. I want everything to be on page 55 with the page itself appearing like Appendix B did in the first figure. How do I do this?

I tried various solutions from other posts to remove the chapter title on Page 57, but I couldn't find a way to prevent that chapter from being produced itself. As a result, I end up with skipped pages between the chapter title on page 55 and the list on page 57.

Answer 1

Warning: this answer may not apply to your actual needs.

IF you want to completely ignore all \chapter* commands in your appendices, and do the sectioning yourself, then you can declare

\makeatletter
\g@addto@macro\appendix{\renewcommand\@schapter[1]{}}
\makeatother

in your document preamble.

IF you want to treat those \chapter* declarations as numbered (lettered) chapters (appendices), then the incantation is

\makeatletter
\g@addto@macro\appendix{\renewcommand\@schapter{\chapter}}
\makeatother

(The "*" is consumed before \@schapter goes to work.)

Note that these make assumptions on how the document class defines \chapter, so can't be relied on everywhere.

Answer 2

The nomencl makes use of \chapter*{} (if available in the class) to create the list of symbols and so a new page is created.

First, load the nomencl package with the option notocbasic (but not intoc otherwise the entry will be duplicated in table of contents), that is,

\usepackage[notocbasic]{nomencl}

From nomencl.sty we find:

\makeatletter % added
\def\thenomenclature{%
  \providecommand*{\listofnlsname}{\nomname}%
  \if@nomencl@tocbasic
    \let\list@fname\listofnlsname
    \def\@currext{nls}%
    \tocbasic@listhead{\list@fname}%
   \else
    \@ifundefined{chapter}%
    {
      \section{\nomname}
      \if@intoc\addcontentsline{toc}{section}{\nomname}\fi%
    }%
    {
      \chapter{\nomname} %%% <----------- deleted * here
      \@mkboth{\nomname}{\nomname}%
      \if@intoc\addcontentsline{toc}{chapter}{\nomname}\fi%
    }%
  \fi
  \nompreamble
  \if@nomentbl
    \let\itemOrig=\item
    \def\item{\gdef\item{\\}}%
    \expandafter\longtable\expandafter{\@nomtableformat}
  \else
    \list{}{%
      \labelwidth\nom@tempdim
      \leftmargin\labelwidth
      \advance\leftmargin\labelsep
      \itemsep\nomitemsep
      \let\makelabel\nomlabel}%
  \fi
}

\makeatother % added

and then simply put the code above on your preamble. In the document, you simply use \appendix and \printnomenclature.