Text Formatting ⇒ Redefine an existing command

[ptrcao]

Ok so this is wrong, but you can clearly see what the intention is. Please show me how to do it right:

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\renewcommand{\Latex}{\LaTex \xspace}

[meho_r]

There is no predefined command \Latex, but \LaTeX. So, maybe what you want is to create a new command. E.g.:

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\documentclass{article}

\usepackage{xspace}

\newcommand{\Latex}{\LaTeX\xspace}

\begin{document}

\Latex and some text.

Some text and \Latex.

\end{document}

[ptrcao]

There is no predefined command \Latex, but \LaTeX. So, maybe what you want is to create a new command. E.g.:

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\documentclass{article}

\usepackage{xspace}

\newcommand{\Latex}{\LaTeX\xspace}

\begin{document}

\Latex and some text.

Some text and \Latex.

\end{document}

This is specifically what I really wanted:

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\newcommand{\LaTeX}{\LaTeX \xspace}

Is there no way to redefine and already-defined function?

[Frits]

As it seems, LaTeX doesn't allow you to change the \LaTeX command.

[ptrcao]

As it seems, LaTeX doesn't allow you to change the \LaTeX command.

Can we overcome this? You're sure there isn't a redefine command I can use?

[Frits]

Not that I'm aware of. The only way I can come up with is the way meho_r described.

[localghost]

To redefine a command it requires \renewcommand correspondingly. But there is no need to redefine especially \LaTeX since a single additional backslash right after does the trick.

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Blank space after \LaTeX\ wanted.

But if you insist on redefining especially the \LaTeX command, try the following.

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\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\let\oldLaTeX\LaTeX
\renewcommand*{\LaTeX}{\oldLaTeX\space}

\begin{document}
  Blank space after \LaTeX wanted.
\end{document}

Or is \LaTeX here only an example for another command you want to redefine?


Thorsten

[ptrcao]

\let\oldLaTeX\LaTeX
\renewcommand*{\LaTeX}{\oldLaTeX\space}

It appears to work, but just one question:
In this context, does the asterisk serve any functional purpose, or is it just to draw my attention to this line?

[localghost]

I don't want to bore you with LaTeX internals. I think it's enough for you to know that the starred version is for short commands like this here and the normal version is for long commands that can contain paragraphs.