The \mintinline command will generate error when used in \chapter{}

[moihn]

If I wrote code as:

\chapter{The \mintinline{cpp}{std::cout}}

and compile with:

xelatex -shell-escape book.tex

An error of :

Error: no lexer for alias 'CPP' found.

I used \tracingall in \mintinline implementation and found that something like:

\chapter -> \uppercase{**** \mint {cpp}{std::cout}}

is expanded.

So I think the \uppercase in \chapter expansion may have changed the "cpp" to uppercase.

I tried to update the \mintinline implementation, adding \lowercase{} to the \def\mint@lang{#2} code, but without success.

[moihn]

More information: It seems the \uppercase is used in rendering the page's header area, where all strings are displayed in uppercase.

[gpoore]

I think this is due to a common problem: verbatim content often doesn't behave in the arguments to commands. If that's the case (I will have to investigate a bit further), there may be no solution, only workarounds.

A standard way to get verbatim content into command arguments is to use a savebox. For example,

\newsavebox\mybox
\begin{lrbox}{\mybox}
\mintinline{cpp}{std::cout}
\end{lrbox}

\section{Text \usebox{\mybox}}

[gpoore]

I've done some further investigation, and don't have any additional suggestions. I would be interested to see a minimal example document that exhibits the problem, since I'm not getting it with the book document class. Maybe you are using a special document class?

I've added a section in the FAQ in the documentation that addresses this sort of situation. Since I don't believe there is anything else I can do, at least without more information, I'm closing the issue for now.