\def\sdef#1{\expandafter\def\csname#1\endcsname}
\def\slet#1#2{\expandafter\let\csname#1\expandafter\endcsname\csname#2\endcsname}
+% Assign a control sequence given as a string, complain if it is not defined.
+\def\sget#1#2{\ifcsname#2\endcsname
+ \expandafter\let\expandafter#1\csname#2\endcsname
+ \else
+ \errmessage{Undefined control sequence #2}%
+ \let#1\relax
+ \fi
+}
+
% Add \protected to an existing macro
\def\addprotected#1{\protected\edef#1{\expandafter\unexpanded\expandafter{#1}}}
\def\liststyle#1{%
\edef\markertmp{#1}
\ifcsname item:\markertmp\endcsname
- \slet{listmarker}{item:\markertmp}%
+ \sget\listmarker{item:\markertmp}%
\else
- \slet{listmarker}{metaitem:\markertometa#1^^X}%
- \slet{markerinner}{item:\markertoinner#1^^X}%
+ \sget\listmarker{metaitem:\markertometa#1^^X}%
+ \sget\markerinner{item:\markertoinner#1^^X}%
\fi
}
\fi
}
+\def\endlist{\par\endgroup\postitemize}
+
+% List styles
+\sdef{item:o}{\raise0.2ex\hbox{$\bullet$}}
+\sdef{item:O}{\raise0.2ex\hbox{$\circ$}}
+\sdef{item:*}{\raise0.2ex\hbox{$\ast$}}
+\sdef{item:-}{--}
+\sdef{item:.}{\raise0.2ex\hbox{$\cdot$}}
+\sdef{item:n}{\the\itemcount}
+\sdef{item:i}{\romannumeral\itemcount}
+\sdef{item:I}{\uppercase\expandafter{\romannumeral\itemcount}}
+\sdef{item:a}{\char\numexpr 96+\itemcount\relax}
+\sdef{item:A}{\char\numexpr 64+\itemcount\relax}
+\sdef{item:g}{$\ifcase\itemcount\or\alpha\or\beta\or\gamma\or\delta\or\epsilon\or
+\zeta\or\eta\or\theta\or\iota\or\kappa\or\lambda\or\mu\or\nu\or\xi\or\pi\or\rho
+\or\sigma\or\tau\or\upsilon\or\phi\or\chi\or\psi\or\omega\fi$}
+
+% List meta-styles
+\sdef{metaitem:=.}{\markerinner.}
+\sdef{metaitem:=)}{\markerinner)}
+\sdef{metaitem:(=)}{(\markerinner)}
+
+% Old-style lists
+
\def\itemize#1{\inititemize\setbox\itembox\llap{#1\hskip\itemmarkerskip}%
\let\:=\singleitem}
\def\singleitem{\par\leavevmode\copy\itembox\ignorespaces}
-\def\endlist{\par\endgroup\postitemize}
-
-% Markers for \itemize
-\def\ibull{\raise0.2ex\hbox{$\bullet$}}
-\def\idot{\raise0.2ex\hbox{$\cdot$}}
-\def\istar{\raise0.2ex\hbox{$\ast$}}
-
\def\numlist#1{\inititemize\itemcount=0\let\:=\numbereditem
\let\itemnumbering=#1}
\def\numbereditem{\par\leavevmode\advance\itemcount by 1
\llap{\itemnumbering\hskip\itemmarkerskip}\ignorespaces}
-% Numbering styles for \numlist
+% Old-style markers
+
+\def\ibull{\raise0.2ex\hbox{$\bullet$}}
+\def\idot{\raise0.2ex\hbox{$\cdot$}}
+\def\istar{\raise0.2ex\hbox{$\ast$}}
+
\def\nnorm{\the\itemcount}
\def\ndotted{\nnorm.}
\def\nparen{\nnorm)}
\zeta\or\eta\or\theta\or\iota\or\kappa\or\lambda\or\mu\or\nu\or\xi\or\pi\or\rho
\or\sigma\or\tau\or\upsilon\or\phi\or\chi\or\psi\or\omega\fi$)}
-% List styles
-\sdef{item:o}{\raise0.2ex\hbox{$\bullet$}}
-\sdef{item:O}{\raise0.2ex\hbox{$\circ$}}
-\sdef{item:*}{\raise0.2ex\hbox{$\ast$}}
-\sdef{item:-}{--}
-\sdef{item:.}{\raise0.2ex\hbox{$\cdot$}}
-\sdef{item:n}{\the\itemcount}
-\sdef{item:i}{\romannumeral\itemcount}
-\sdef{item:I}{\uppercase\expandafter{\romannumeral\itemcount}}
-\sdef{item:a}{\char\numexpr 96+\itemcount\relax}
-\sdef{item:A}{\char\numexpr 64+\itemcount\relax}
-\sdef{item:g}{$\ifcase\itemcount\or\alpha\or\beta\or\gamma\or\delta\or\epsilon\or
-\zeta\or\eta\or\theta\or\iota\or\kappa\or\lambda\or\mu\or\nu\or\xi\or\pi\or\rho
-\or\sigma\or\tau\or\upsilon\or\phi\or\chi\or\psi\or\omega\fi$}
-
-% List meta-styles
-\sdef{metaitem:=.}{\markerinner.}
-\sdef{metaitem:=)}{\markerinner)}
-\sdef{metaitem:(=)}{(\markerinner)}
-
%%% Miscellanea %%%
% {\I italic} with automatic italic correction