textbf is bolding all following text beyond the bracket closure

Question

I have a series of .tex files that are being compiled by lualatex, and this particular .tex file is making Title 4 and all the text in the following .tex files appear bolded after compilation even though they don't have a preceding \textbf or \bf. My assumption was that I was missing a bracket close, but it doesn't appear that way, so I tried removing the very first \textbf so the line reads:

\hspace{1cm}\large{Title 1, \foo}

This broke everything though, and gave me this error: "! Incomplete \ifnum; all text was ignored after line 293." I was able to remove the \textbf from the Title 3 line that did not invoke the foo function though, so my thought was that the problem lies in that function.

A quick google brought me here, but I tried playing around with the %s that I had in my function and couldn't figure out how to make it compile or fix the bolding issue.

I'm really stuck on this and would greatly appreciate any advice!! Thanks in advance!

\documentclass{article}
\newcommand{\insertquarter}{%
  Q%
  \ifcase\month\or4\or1\or1\or1\or2\or2\or2\or3\or3\or3\or4\or4\fi
}
\newcommand{\lastMonthAlternate}{\ifcase \month\or %
December \or January\or February\or March\or %
April\or May \or June\or July\or August\or September\or October\or November\fi \hspace{1mm}\number \numexpr\year\ifnum\month=1 -1\fi\relax}
\newcommand{\foo}{%
  \ifnum\month=1
    \insertquarter\ \number\numexpr\year-3\relax\ -- \insertquarter\ \number\numexpr\year-1\relax 
  \else%
    \ifnum\month\or4\or7\or10
      \insertquarter\ \number\numexpr\year-2\relax\ -- \insertquarter\ \number\year
    \else%
      \insertquarter\ \number\numexpr\year-2\relax\ -- \lastMonthAlternate
  \fi%
}
\begin{document}
\hspace{1cm}\large\textbf{Title 1, \foo}
\hspace{1cm}\large\textbf{Title 2, \foo}
\hspace{1cm}\large\textbf{Title 3}
\hspace{1cm}\large{Title 4}
\end{document}

Please don't post code fragments. Can you condense your example into a small compilable document that shows the problem? For example, we have no access to your graphics files, and they're presumably irrelevant to the problem you're having, so remove that code, etc. — Alan Munn, Jan 04 '23 at 16:25
The most likely source of this problem is an instance of \bfseries rather than \textbf unless you've got a really misplaced closing }. — Alan Munn, Jan 04 '23 at 16:32
`\bfseries doesn't appear in any other documents however, and if you try compiling the above code you can see that Title 4 is bolded, but if you delete Titles 1-3, it's not bolded. — Cole MG, Jan 04 '23 at 16:34
Yes, I see that now! It wasn't clear before the complete example was available. :) — Alan Munn, Jan 04 '23 at 16:37
Please don't cross-post on multiple sites without disclosing all versions of your post in each version. — samcarter_is_at_topanswers.xyz, Jan 04 '23 at 17:36

score 2 · Accepted Answer · answered Jan 04 '23 at 16:42

If you try to use your \foo macro outside of the \textbf you can see that you get an error Incomplete \ifnum. This shows that your \foo macro doesn't actually work the way you want it too, because you have a missing \fi. If we add that \fi to the macro then your document works as expected.

\documentclass{article}
\newcommand{\insertquarter}{%
  Q%
  \ifcase\month\or4\or1\or1\or1\or2\or2\or2\or3\or3\or3\or4\or4\fi
}
\newcommand{\lastMonthAlternate}{\ifcase \month\or %
December \or January\or February\or March\or %
April\or May \or June\or July\or August\or September\or October\or November\fi \hspace{1mm}\number \numexpr\year\ifnum\month=1 -1\fi\relax}
\newcommand{\foo}{%
  \ifnum\month=1
    \insertquarter\ \number\numexpr\year-3\relax\ -- \insertquarter\ \number\numexpr\year-1\relax 
  \else%
    \ifnum\month\or4\or7\or10
      \insertquarter\ \number\numexpr\year-2\relax\ -- \insertquarter\ \number\year
    \else%
      \insertquarter\ \number\numexpr\year-2\relax\ -- \lastMonthAlternate
  \fi
\fi%
}
\begin{document}
\hspace{1cm}\large\textbf{Title 1,\foo }
\hspace{1cm}\large{Title 4}
\end{document}

textbf is bolding all following text beyond the bracket closure

1 Answers1