[OS X TeX] Colored words

[Aaron Jackson]

On Feb 21, 2005, at 5:03 PM, Alain Schremmer wrote:

> Aaron Jackson wrote:
>
>> Strange.
>
> Not strange at all:
> What happened is that when I copy-pasted your code onto a new TeXshop,  
> I didn't realize that, somehow, a space had gotten in front of "green"  
> and that the console was indeed complaining about ' green'.
> Thus, my fault and I apologize.
>
> I still have a few problems.
>
> - I would rather not have the line numbers since the reader won't see  
> them in the file they will create.

Just delete the following lines:

\newlength{\xleftmargin}
\settowidth{\xleftmargin}{\textbf{99999}}% width of 5 digits in the  
current font.
\newlength{\numbersep}
\settowidth{\numbersep}{\textbf{99}}% width of 2 digits in the current  
font.

  and the following from \lstset

numbers=left, stepnumber=1, numberstyle=\normalsize,  
numbersep=\numbersep, xleftmargin=\xleftmargin



> - In the listing, $ does not show green.

I don't know how to do that without muching around with latex code.   
That is, in order to print out a green $ you would have to do something  
like (not complete file and not fully tested):

\newcommand{\green}[1]{\textcolor{green}{#1}}
\usepackage{listings}
\lstloadlanguages{{[latex]TeX}}
\lstset{language={[latex]TeX},  keywordstyle=\color{blue},  
texcsstyle=*{\color{blue}}, commentstyle=\color{red},  
showstringspaces=false, showspaces=false, showtabs=false,  
columns=fullflexible tabsize=4,  fontadjust, basewidth=1ex, breaklines,  
moretexcs={numbersep,xleftmargin,  
color,textcolor,mysyntaxp,mysyntax,lstset,lstloadlanguages,lstinputlisti 
ng, lstinline},  escapeinside=`'}%you can change theses characters to  
whatever you like.

...
\begin{lstlisting}
`\green{\$}'f(x) = ax^2 +bx +c`\green{\$}'
\textbf`\green{\{}\textsf{test}\green{\}}'
\end{lstlisting}
...

I guess you could also do something like:

\newcommand{\green}[1]{\textcolor{green}{#1}}
\newcommand{\gop}{\green{\{}}
\newcommand{\gcp}{\green{\}}
\newcommand{\gds}{\green{\$}}
\newcommand{\arg}[1]{\gop\textsf{#1}\gcp}
\usepackage{listings}
\lstloadlanguages{{[latex]TeX}}
\lstset{language={[latex]TeX},  keywordstyle=\color{blue},  
texcsstyle=*{\color{blue}}, commentstyle=\color{red},  
showstringspaces=false, showspaces=false, showtabs=false,  
columns=fullflexible tabsize=4,  fontadjust, basewidth=1ex, breaklines,  
moretexcs={numbersep,xleftmargin,  
color,textcolor,mysyntaxp,mysyntax,lstset,lstloadlanguages,lstinputlisti 
ng, lstinline},  escapeinside=`'}%you can change theses characters to  
whatever you like.
...
\begin{lstlisting}
`\gds'f(x) = ax^2 +bx +c`\gds'
\textbf`\arg{test}'
\end{lstlisting}
...

Which makes it a bit cleaner I guess.  However, it kind of defeats the  
notion of typesetting real source code...

> - How do I show     $f(x) = ax^2 +bx +c$? (Verbatim of course shows $  
> in black.)

As a type set formula in a listing or as the latex code inline?  For  
the former, set mathescape=true in \lstset.  For the latter, you can  
use \lstinline, i.e.

\lstinline!$f(x) = ax^2 +bx +c$!

Add lstinline to the moretexcs list if you ever want it to be  
recognized as a key word.

> Other than that this is fantastic. (Even *{\color{blue}} works.)

Good.  I don't think that listings was ever written with this exact use  
in mind, but it isn't too far away.

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