Document Classes ⇒ LaTeX Warning: Unused global option(s)

[ivan_b]

Hi,

I wrote a document class based on standard article.cls. I defined some additional options using the \DeclareOption command. This options work as intended, however "LaTeX Warning: Unused global option(s)" is produced when they are used.

My code in document class:

Code: Select all

\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesClass{actamont}[2010/06/01 LaTeX class for Acta Montanistica Slovaca]

%% Necessary variables for defined options
\newif\if@Final
\newif\if@Special
\newif\if@SK
\newif\if@CZ
\def\@Page{1}
\newif\if@Numbered

\@Finalfalse
\@Specialfalse
\@SKfalse
\@CZfalse
\@Numberedfalse

%% Other variables used
\def\@Journal{Acta Montanistica Slovaca}

%% Options of actamont class
\DeclareOption{final}{\global\@Finaltrue}
\DeclareOption{special}{\global\@Specialtrue}
\DeclareOption{sk}{\global\@SKtrue}
\DeclareOption{cz}{\global\@CZtrue}
\DeclareOption{numberedrefs}{\global\@Numberedtrue}
\DeclareOption{a4paper}{\PassOptionsToClass{a4paper}{article}}
\DeclareOption{twoside}{\PassOptionsToClass{twoside}{article}}
\DeclareOption{10pt}{\PassOptionsToClass{10pt}{article}}
\DeclareOption{onecolumn}{\PassOptionsToClass{onecolumn}{article}}
%\DeclareOption*{\PassOptionsToClass{\CurrentOption}{article}}
\DeclareOption*{\ClassWarningNoLine{actamont}{Unknown option `\CurrentOption' specified for 'actamont' class}}

\ExecuteOptions{a4paper,10pt,twoside,onecolumn}
\ProcessOptions

%% This class is based on standard LaTeX article class
%\LoadClass[a4paper,twoside,10pt]{article}
\LoadClass{article}

the rest of the code continues with various \RequirePackage, \setlength, ... commands. Many of these vary according to defined options:

Code: Select all

\if@option
   command if defined
   \else
   command if undefined
\fi

These definitions work well, but I really need to get rid of the Warnings.

I.e. if I specify following options in .tex document:

Code: Select all

\documentclass[sk,final,special,numberedrefs]{actamont}

following warning is produced:

Code: Select all

LaTeX Warning: Unused global option(s):
[sk,final,special,numberedrefs].

Any help would be appreciated.

[josephwright]

Are you sure? I've tried your class with your test file and don't get any warnings. Perhaps post your log file.

[ivan_b]

Here are some zipped files containing document class and .tex documents.

[ivan_b]

Anybody was able to reproduce the warning?

[meho_r]

Yes, the warning is there (I run pdflatex on submission.tex; TeXLive2009 on Debian).

Code: Select all

LaTeX Warning: Unused global option(s):
    [sk].

[sommerfee]

There are multiple \ProcessOptions inside your document class. Just remove the second one.

How did I find this:

First of all I used a real minimal example document which does use the document class but not any features of it. This one still produced the warning.

Afterwards I placed an \endinput inside the document class file, right after \LoadClass{article}. The warning has gone away. So the problem must be somewhere inside the document class, below \LoadClass{article}.

By moving the \endinput line step-by-step below inside the document class code I was able to encircle the lines which causes the problem.

This technique for finding bugs in (La)TeX documents is described here:
http://www.minimalbeispiel.de/mini-en.html

The link to this guide can be found inside the Board Rules (marked with "Everybody, by all means, read before posting!"), section 2.2 "Building an example":
http://www.latex-community.org/forum/vi ... =35&t=5838

[ivan_b]

Thank you very much sommerfee. Nice technique. Now I am going to read the thread you linked to, it will definitely be usefull.

[localghost]

[...] Now I am going to read the thread you linked to, it will definitely be usefull.

This is hopefully not only an empty word. So, don't forget to act according to Section 3, which describes what has to be done after posting.


Best regards and welcome to the board
Thorsten