charactersurls
Is there an easy way for Latex to ignore all special characters in a given phrase? For example, I had to copy several links which contained the symbol _ . I know that it is possible to put \ in front of every special character, to ignore it. But I was wondering if there is a command of the form
\ignore{^&%$###___} that outputs exactly '^&%$###___' in the pdf document?
Thank you.
For the underscore it's quite easy:
\documentclass{article}
\usepackage[T1]{fontenc}
\catcode`_=12
\begingroup\lccode`~=`_\lowercase{\endgroup\let~\sb}
\mathcode`_="8000
\begin{document}
Under_score but $a_{x}$
\end{document}
Actually the line \mathcode`_="8000 is redundant, but repeating it makes our intentions clear.
We make the character _ is "math active", i.e., it behaves like a macro, but only in math mode. The \begingroup\lccode... trick defines this macro to be equivalent to \sb which in turn is equivalent to the usual _ for introducing a subscript. In order that it's really seen as a math active character, we need to give it category code 12, which also makes it printable (outside math mode). However, we need a font that has an underscore in the right position, so we load the T1 output encoding.
Other special characters have to be treated in different ways. For example, the $ symbol can be "neutralized" by saying
\usepackage{fixltx2e}
\catcode`$=12
in the preamble; the package is necessary because it "robustifies" the \( and \) commands. In-line formulas must now be input with these commands, of course.
For the &, one can say
\def\AM{&}
\catcode`&=12
and use \AM for marking alignment points in tabular environments.
Also the # character can be neutralized, as long as after saying
\catcode`#=12
one doesn't try defining new commands.
However, I don't recommend to change catcodes (other than the underscore, perhaps). A "search and replace", in case of a conversion to other formats, is safer.
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[utf8]{inputenc}
%\makeatletter
%\def\verbatim@font{\normalfont\fontfamily{ua1}\selectfont} % verbatim in Arial
%
\makeatother
\begin{document}
\begin{verbatim}
König IR : KA}unig ,K ~ A}unig
% : Comment in latex (so no text after this %)
- : escape
\end{verbatim}
\noindent
\begin{tabular}{@{} p{2cm} @{\,:\,} l }
König IR & KA\}unig ,K \textasciitilde\ A\}unig \\
\% & Comment in latex (so no text after this \%)\\
- & escape
\end {tabular}
\end{document}
and the same with arial for verbatim:
Best Answer
To just insert the characters, use
\verb|^&%$###___|. But this doesn't insert any line breaks.To give the string proper line breaks for a url,
\usepackage{url}and use\url{^&%$###___}.To also make it a clickable link,
\usepackage{hyperref}and again use\url{^&%$###___}.