[textcase] When \NoCaseChange{} is used in \MakeUppercase{}, \o is left capitalized

[GAndreikenas]

Hello,

I've got the following issue: the title of journal's article should be capitalized, text from \thanks{} inside the \title{} is \NoCaseChangeed, but \o is still capitalized. Here is MWE:

\documentclass{article}
\usepackage{textcase}

\makeatletter
\def\title#1{\gdef\@title{\MakeUppercase{#1}}}
\let\case@thanks\thanks
\def\thanks#1{\NoCaseChange{\case@thanks{#1}}}
\makeatother

\begin{document}
\title{My title\thanks{Thanks to Hedda Hassel M\o rch}}
\author{My Name}
\maketitle
\end{document}

Thanks, Giedrius

[davidcarlisle]

With a current release textcase does nothing and if I delete it I get

from

\documentclass{article}

\makeatletter
\def\title#1{\gdef\@title{\MakeUppercase{#1}}}
\let\case@thanks\thanks
\def\thanks#1{\NoCaseChange{\case@thanks{#1}}}
\makeatother

\begin{document}
\title{My title\thanks{Thanks to Hedda Hassel M\o rch}}
\author{My Name}
\maketitle
\end{document}

In older LaTeX releases you would have needed to use MakeTextUppercase rather than MakeUppercase to have any effect or use the [overload] package option.

As textcase 2022/07/10 v1.03 does nothing at all in current Latex and the new MakeUppercase (which is generally Unicode-aware) seems to work here, I think I can close with no action?

[GAndreikenas]

Unfortunately, with TL2019 MakeTextUppercase does not solve the problem - \o stays capitalized.

[davidcarlisle]

I may be able to suggest something but not really here the package here does nothing now (as \NoCaseChange is built in to latex now, and your problem is fixed there) and any change I make here or on ctan would only go to texlive 2022 and later.

if you use OT1 (as in your example) \o is

\DeclareTextSymbol{\o}{OT1}{28} so you could use \symbol{28}

in T1 encoding it is

\DeclareTextSymbol{\o}{T1}{248} so you could use \symbol{248}

[GAndreikenas]

Thanks for the help.