[Tex/LaTex] Multi-line (block) comments in LaTeX

comments

In LaTeX, % can be used for single-line comments. For multi-line comments, the following command is available in the verbatim package.

\begin{comment}
Commented code
\end{comment}

But is there a simple command like /* code */ in C?

Best Answer

Following the C code paradigm, where one can use the preprocessor directives

#if 0
junk code
#endif

something similar can be done in TeX (and descendants):

\iffalse
I don't want this to happen
\fi

The commented parts can be easily activated by replacing \iffalse with \iftrue.

Related Solutions

[Tex/LaTex] LaTeX Listings Package, No Line Number for Comments

I don't think it is possible to do what you want with the "listings" package. However, if it is worth your time you can break it up in sections and use a style for numbers and another for no-numbers. See the example below for one way of doing this.

\documentclass{article}
\usepackage{listings}
\begin{document}
\lstdefinestyle{numbers}
{numbers=left, stepnumber=1, numberstyle=\tiny, numbersep=10pt}
\lstdefinestyle{nonumbers}
{numbers=none}
\begin{lstlisting}[style=nonumbers]
// this is comments
// and more
\end{lstlisting}
\begin{lstlisting}[style=numbers]
for i:=maxint to 0 do
begin
  {do some code}
end;
\end{lstlisting}
\begin{lstlisting}[style=nonumbers]
// this is comments
// and more
\end{lstlisting}
\end{document}

Personally, I avoid typesetting code with comments, as it looks very ugly. Since you describing your code it is preferable - instead of comments to provide your own commentary in words (like the documentation in most packages).

You can also try the 'fancyvrb" which I believe provides such a facility as you specified.

[Tex/LaTex] Comments in BibTex

You can "comment" whole entries by erasing the @ in front of the type declaration (@book -> book); there are no other ways of commenting parts of entries. However, unknown fields are ignored, so you can say

OPTpages={34--35},

in order to ignore the pages field. Also repeated fields are ignored.

As a matter of fact, text between entries will be ignored, which is why the above works; only what appears between the braces like in

@ENTRY{...
  ...
}

is considered. However, it should be noted that Biber is stricter than BibTeX in this respect, so it will warn about what it considers junk between entries. Adding a % at the beginning of a line turns off Biber's warnings.

Best Answer

Related Solutions

[Tex/LaTex] LaTeX Listings Package, No Line Number for Comments

[Tex/LaTex] Comments in BibTex

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