titlesec makes fancyhdr mistreating the document class












0















MWE is pretty simple:



documentclass[twoside]{article}

%usepackage{titlesec}

usepackage{fancyhdr}

begin{document}

pagestyle{fancy}

section{tist1}

subsection{a}

newpage

subsection{b}

end{document}


On the second page, there is the subsection name on the left and the section name on the right.



Now, uncomment the titlesec import, and the behaviour changes: the section name on the left and nothing (actually, a fantom of non-existent chapter name) on the right.



It happens because titlesec redefines chapter as relax, though normally it's undefined in article class. The fancyhdr packages has a following check:



ifxchapter@undefined


It fails, and marks are defined as in classes that have chapters. I can work it around with



letchapterundefined


after usepackage{titlesec}, or by explicitly redefining sectionmark/subsectionmark after pagestyle{fancy}. But why should I? Is this a bug in titlesec, or setting chapter to relax has some purpose?






fancyhdr titlesec article







share|improve this question























  • What versions of the packages are you using? (Put listfiles before documentclass and report the output here.) I get identical output with or without titlesec.

    – Alan Munn
    1 hour ago


















0















MWE is pretty simple:



documentclass[twoside]{article}

%usepackage{titlesec}

usepackage{fancyhdr}

begin{document}

pagestyle{fancy}

section{tist1}

subsection{a}

newpage

subsection{b}

end{document}


On the second page, there is the subsection name on the left and the section name on the right.



Now, uncomment the titlesec import, and the behaviour changes: the section name on the left and nothing (actually, a fantom of non-existent chapter name) on the right.



It happens because titlesec redefines chapter as relax, though normally it's undefined in article class. The fancyhdr packages has a following check:



ifxchapter@undefined


It fails, and marks are defined as in classes that have chapters. I can work it around with



letchapterundefined


after usepackage{titlesec}, or by explicitly redefining sectionmark/subsectionmark after pagestyle{fancy}. But why should I? Is this a bug in titlesec, or setting chapter to relax has some purpose?






fancyhdr titlesec article







share|improve this question























  • What versions of the packages are you using? (Put listfiles before documentclass and report the output here.) I get identical output with or without titlesec.

    – Alan Munn
    1 hour ago
















0












0








0








MWE is pretty simple:



documentclass[twoside]{article}

%usepackage{titlesec}

usepackage{fancyhdr}

begin{document}

pagestyle{fancy}

section{tist1}

subsection{a}

newpage

subsection{b}

end{document}


On the second page, there is the subsection name on the left and the section name on the right.



Now, uncomment the titlesec import, and the behaviour changes: the section name on the left and nothing (actually, a fantom of non-existent chapter name) on the right.



It happens because titlesec redefines chapter as relax, though normally it's undefined in article class. The fancyhdr packages has a following check:



ifxchapter@undefined


It fails, and marks are defined as in classes that have chapters. I can work it around with



letchapterundefined


after usepackage{titlesec}, or by explicitly redefining sectionmark/subsectionmark after pagestyle{fancy}. But why should I? Is this a bug in titlesec, or setting chapter to relax has some purpose?






fancyhdr titlesec article







share|improve this question














MWE is pretty simple:



documentclass[twoside]{article}

%usepackage{titlesec}

usepackage{fancyhdr}

begin{document}

pagestyle{fancy}

section{tist1}

subsection{a}

newpage

subsection{b}

end{document}


On the second page, there is the subsection name on the left and the section name on the right.



Now, uncomment the titlesec import, and the behaviour changes: the section name on the left and nothing (actually, a fantom of non-existent chapter name) on the right.



It happens because titlesec redefines chapter as relax, though normally it's undefined in article class. The fancyhdr packages has a following check:



ifxchapter@undefined


It fails, and marks are defined as in classes that have chapters. I can work it around with



letchapterundefined


after usepackage{titlesec}, or by explicitly redefining sectionmark/subsectionmark after pagestyle{fancy}. But why should I? Is this a bug in titlesec, or setting chapter to relax has some purpose?






fancyhdr titlesec article




fancyhdr titlesec article






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 2 hours ago









bodqhrohrobodqhrohro

1083




1083













  • What versions of the packages are you using? (Put listfiles before documentclass and report the output here.) I get identical output with or without titlesec.

    – Alan Munn
    1 hour ago





















  • What versions of the packages are you using? (Put listfiles before documentclass and report the output here.) I get identical output with or without titlesec.

    – Alan Munn
    1 hour ago



















What versions of the packages are you using? (Put listfiles before documentclass and report the output here.) I get identical output with or without titlesec.

– Alan Munn
1 hour ago







What versions of the packages are you using? (Put listfiles before documentclass and report the output here.) I get identical output with or without titlesec.

– Alan Munn
1 hour ago












0






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