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I create a document class testclass.

\NeedsTeXFormat{LaTeX2e} \ProvidesClass{testclass} \DeclareOption*{\PassOptionsToClass{\CurrentOption}{scrartcl}} \ProcessOptions\relax \LoadClass[DIV=10,a4paper,11pt]{scrartcl} \RequirePackage[utf8]{inputenc} \RequirePackage[ngerman,english]{babel} \RequirePackage[T1]{fontenc} ...

And I want to use it in my tex file.

\documentclass{testclass} \usepackage[utf8]{inputenc} \usepackage[english,ngerman]{babel} \usepackage{iflang} \IfLanguageName{ngerman}{\title{German Title}} \IfLanguageName{english}{\title{English Title}} \begin{document} \selectlanguage{english} \IfLanguageName{ngerman}{Test1} \IfLanguageName{english}{Test2}

Then is all fine. But If I set selectlanguage to ngerman I get both contents. What did I maybe missunderstanding?

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  • Please make sure your examples are complete. None of this ... and make sure your .tex example is complete Commented Apr 2, 2020 at 11:01
  • 1
    \IfLanguageName takes 3 arguments, you are only giving it two Commented Apr 2, 2020 at 11:04

1 Answer 1

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The \IfLanguageName takes three argumnents in the form of

  • a language name
  • true branch
  • false branch

In all 4 uses of \IfLanguage you are missing the false branch, add them and it works ok.

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  • 1
    Thank you. RTFM for myself ;-) Commented Apr 2, 2020 at 11:28

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