% From UseNET:
%Donald Arseneau
%asnd@reg.triumf.ca
%
%  here is what I use in my draftcite.sty to write the citation key
%  instead of its normal label.  It works for all the special characters
%  that can be used in such a key but not as a universal verbatim mode.
%
\def\citeverb#1{%
   \expandafter \expandafter \expandafter \@gobble  %  do \csname, \string, ...
   \expandafter \string\csname#1\endcsname}         %  \@gobble, in that order.
 
 
%
%  Here is one that does more;  I combined it with LaTeX's method of
%  catcoding special characters as "other" so it will work as documented
%  by the LaTeX manual, with the added feature of working in the argument
%  to another command as long as there are no %'s in the verbatim text and
%  any braces are balanced (like {this}).  If there are \'s in the verbatim
%  text, there might be some extra space inserted (\that) -> (\that ).
%  it goes to some pain to fix doubled # signs.
%
\def\verb{\begingroup \tt \let\do\@makeother \dospecials  % from LaTeX
  \catcode`\#=6\relax % so \meaning always generates ## for #
  \obeyspaces\frenchspacing % perhaps some other settings
  \verb@A}
%
\def\@meaningless#1:->{\@undoublehash}%
%
{\catcode`\&=6 \@makeother # % use & for macro parameters while # is "other"
%
\gdef\verb@A&1{\def\verb@B&1&&1&1{%
    \toks@={&&1}\edef\n@@t{\the\toks@}% prevents error message with #
    \expandafter\@meaningless\meaning\n@@t#\@gobblethree#\endgroup}%
  \verb@B&1}
\gdef\@undoublehash &1#&2#{&1%
  % if ## emit #\@undoublehash
  % if #\@gobble# emit nothing
  % if #other# emit #other#\@undoublehash (can't happen(?))
  \ifx&2\@gobblethree\@gobblethree #\expandafter\@undoublehash
  \else #&2#\expandafter\@undoublehash\fi}
}
\def\@gobblethree#1#2#3{}
 
 
