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ID 276🔗
Date: 2024-07-31 17:36:11
Last update: 2024-08-02 18:45:47
Status Closed (Not a Bug)
Category mfirstuc
Version 2.08
Summary output no longer the same as in manual

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Description

The output of \MFUsentencecase is no longer the same as in the manual. For example,
\MFUblocker{\nameref}
\makefirstuc{\nameref{sec:sentencecase} section} /
\MFUsentencecase{\nameref{sec:sentencecase} section}
now gives Sentence-Case section / Sentence-Case section, i.e. the output of \makefirstuc and \MFUsentencecase are the same. There was an update to the \text_titlecase... commands since the last release of this package, which may be the cause of the change in output.

MWE

Download (290B)

\documentclass{article}
\usepackage{mfirstuc}
\usepackage{nameref}

\begin{document}

\section{Sentence-Case}
\label{sec:sentencecase}

\MFUblocker{\nameref}
\makefirstuc{\nameref{sec:sentencecase} section} /
\MFUsentencecase{\nameref{sec:sentencecase} section}

\end{document}

Evaluation

\MFUsentencecase is simply defined as:

\newcommand{\MFUsentencecase}[1]{\text_titlecase_first:n{#1}}
Any change in its behaviour is an issue with \text_titlecase_first:n so I'll have to close this as not a bug in mfirstuc. \MFUblocker automatically implements \MFUexcl so your MWE without the mfirstuc package is essentially doing:
\documentclass{article}

\usepackage{nameref}

\ExplSyntaxOn
\newcommand{\MFUsentencecase}[1]{\text_titlecase_first:n{#1}}
\newcommand{\MFUexcl}[1]{
  \tl_if_empty:nF { #1 }
  {
    \tl_if_in:NnF \l_text_case_exclude_arg_tl {#1}
     {
       \tl_put_right:Nn \l_text_case_exclude_arg_tl {#1}
     }
  }
}
\ExplSyntaxOff

\begin{document}
\section{Sentence-Case}
\label{sec:sentencecase}

\MFUexcl{\nameref}
\MFUsentencecase{\nameref{sec:sentencecase} section}

\end{document}
This does indeed produce "Sentence-Case section" with TeXLive 2024. Replacing \l_text_case_exclude_arg_tl with \l_text_expand_exclude_tl results in the warning:
Reference `Sec:sentencecase' on page 1 undefined
I think you would need to query this with the LaTeX3 team.

Comments

2 comments.

🔗Comment from Matthew Bertucci
Date: 2024-08-02 16:21:08

Sorry, I didn't mean to imply this was a problem with the mfirstuc code. I just meant that the manual could be updated so the user reading it isn't confused when their output doesn't match that in the manual (like I was).

I think the change in the kernel titlecase commands happened with this commit: [Link]. There was a brief mention of it in ltnews38: [Link]

Replying to Comment #142:

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Comment:


You can use the following markup:

Block:

[pre]Displayed verbatim[/pre]
[quote]block quote[/quote]

In line:

[tt]code[/tt]
[file]file/package/class name[/file]
[em]emphasized text[/em]
[b]bold text[/b]
[url]web address[/url] [sup]superscript[/sup]
[sub]subscript[/sub]

Ordered list:
[ol]
[li]first item[/li]
[li]second item[/li]
[/ol]

Unordered list:
[ul]
[li]first item[/li]
[li]second item[/li]
[/ul]

You can use the Preview button to review your message formatting before submitting.

🔗Comment from Nicola Talbot 🦜
Date: 2024-08-02 18:45:47
Repying to: Matthew Bertucci 2024-08-02 16:21:08

Okay, sorry for misunderstanding. I'll add a note to the manual. Thank you for pointing out the problem.

Replying to Comment #143:

Name (optional):

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Comment:


You can use the following markup:

Block:

[pre]Displayed verbatim[/pre]
[quote]block quote[/quote]

In line:

[tt]code[/tt]
[file]file/package/class name[/file]
[em]emphasized text[/em]
[b]bold text[/b]
[url]web address[/url] [sup]superscript[/sup]
[sub]subscript[/sub]

Ordered list:
[ol]
[li]first item[/li]
[li]second item[/li]
[/ol]

Unordered list:
[ul]
[li]first item[/li]
[li]second item[/li]
[/ul]

You can use the Preview button to review your message formatting before submitting.


Add Comment

Name (optional):

Are you human? Please confirm the bug report ID (which can be found at the top of this page) or login if you have an account.

Comment:


You can use the following markup:

Block:

[pre]Displayed verbatim[/pre]
[quote]block quote[/quote]

In line:

[tt]code[/tt]
[file]file/package/class name[/file]
[em]emphasized text[/em]
[b]bold text[/b]
[url]web address[/url] [sup]superscript[/sup]
[sub]subscript[/sub]

Ordered list:
[ol]
[li]first item[/li]
[li]second item[/li]
[/ol]

Unordered list:
[ul]
[li]first item[/li]
[li]second item[/li]
[/ul]

You can use the Preview button to review your message formatting before submitting.

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