%%% (Ir)relevant missing character message

% Try out the code

\hsize=7.3in \vsize=9.8in
\leftskip=30mm \rightskip=30mm \parindent=1em

\font\LOGO=logo10
\def\MP{{\LOGO METAPOST}}
\def\MF{{\LOGO METAFONT}}

short \TeX, \MF\ or \MP\ macro/macros (half A4 page or half a~screen at most)[...]

% The output is typeset without breaking any word at the end of line. Try to
% explain why then the log file contains the line
%
%   Missing character: There is no - (45) in font logo10!
%
% While breaking paragraphs into lines \TeX\ checks all feasible breakpoints
% and chooses the one of the smallest sum of costs (see \TeXbook, chapter 14).
% The message in the log file informs that some of the considered ways of
% typesetting the paragraph had a discretionary break after META.

\end
