% LoVullo rater specification iso class abstraction
%%

\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{raterspec/isoclass}
\ProcessOptions\relax


\def\isoclassdef#1 #2\par{%
  \index{ISO!class code!#1|(}%
    % indicate that this has been defined (semantic checking)
    \expandafter\gdef\csname isoclass@code@#1\endcsname{}%
    % typeset and provide hyperlink (intended for a description env)
    \item[\hypertarget{@isoclass:#1}{#1}] #2\par%
  \index{ISO!class code!#1|)}%
}
\def\isoclassref#1{%
  % ensure that the iso class exists
  \expandafter\ifx\csname isoclass@code@#1\endcsname\relax%
    \errmessage{unknown ISO class code `#1'}
  \fi
  \index{ISO!class code!#1}%
  \hyperlink{@isoclass:#1}{#1}%
}
\let\isoclass\isoclassref