I have a command which formats a piece of text a certain way. Simple example:


I want to be able to place this command inside other text formatting commmands and have those "outer" commands have no effect on the text enclosed in my command.

If I write

\textbf{Some \myformat{example} text.}
\emph{Some \myformat{example} text.}

I want this to be displayed the same as if I had written

\textbf{Some }\myformat{example}\textbf{ text.}
\emph{Some }\myformat{example}\emph{ text.}

Is it possible to "protect" the formatting on a piece of text in situations like this? So that all text formatting applied within \myformat is applied, but all further formatting is ignored?

1 Answer 1


Redefine \myformat to change the font used to \normalfont before setting new styles/shapes:

enter image description here




\textbf{Some \texttt{example} text.}
\emph{Some \texttt{example} text.}

\textbf{Some \myformat{example} text.}
\emph{Some \myformat{example} text.}


Using \DeclareTextFontCommand as opposed to merely

\newcommand{\myformat}[1]{{\normalfont\ttfamily #1}}

makes the command

  • robust,
  • work in math mode (since the text is placed in a box), and
  • inserts the appropriate italic correction (if needed).
  • Or, \DeclareTextFontCommand{\myformat}{\normalfont\ttfamily} (this is actually better, since it handles automatic insertion of the italic correction).
    – GuM
    Feb 15, 2017 at 23:20
  • … and defines a robust command, too!
    – GuM
    Feb 15, 2017 at 23:27
  • @GustavoMezzetti: That's neat. I'll add it.
    – Werner
    Feb 15, 2017 at 23:28
  • Yes, it is superior under all respects, I think. Drawback: can be used only in preamble.
    – GuM
    Feb 15, 2017 at 23:30
  • 1
    OK, after the edit I have no longer withheld my upvote ;-) But there’s one more Good Thing about \DeclareTextFontCommand I’d mention: if the amsmath package is loaded, the \myformat command will automagically switch to the correct size when used, for example, in a susbcript (inside math). In other words, in that case the argument is wrapped in a \hbox that, in turn, is wrapped in a \mathchoice.
    – GuM
    Feb 16, 2017 at 0:55

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