X-Git-Url: https://git.distorted.org.uk/~mdw/sod/blobdiff_plain/a588c77a273681e3cdc85d15fc44f3ddb7da9224..95346c389d6343009410e4d5541eb03d3f1fef59:/doc/sod.sty

diff --git a/doc/sod.sty b/doc/sod.sty
index 2894feb..56fc726 100644
--- a/doc/sod.sty
+++ b/doc/sod.sty
@@ -41,6 +41,16 @@
 \let\implies\Rightarrow
 \let\epsilon\varepsilon
 
+%% A table heading cell.  Clone and hack \multicolumn.
+\def\thd{\omit\@ifnextchar[\thd@{\thd@[l]}}
+\def\thd@[#1]#2{%
+  \begingroup
+    \tab@multicol \tab@initread \let\tab@looped\tab@err@multi
+    \tab@preamble{}\def\tab@midtext{\bfseries#2}\tab@readpreamble{#1}%
+    \the\tab@preamble
+  \endgroup \ignorespaces
+}
+
 %% Unix manpage references.
 \def\man#1#2{\textbf{#1}(#2)}
 
@@ -117,6 +127,7 @@
 
 %% Put a chunk of text in a box.
 \newenvironment{boxy}[1][\q@]{%
+  \savenotes
   \dimen@\linewidth\advance\dimen@-1.2pt\advance\dimen@-2ex%
   \medskip%
   \vbox\bgroup\hrule\hbox\bgroup\vrule%
@@ -126,6 +137,7 @@
   \endminipage\hskip1ex\egroup\vskip1ex\egroup%
   \vrule\egroup\hrule\egroup%
   \medskip%
+  \spewnotes%
 }
 
 %% Lisp documentation machinery.
@@ -133,40 +145,61 @@
 \def\describecategoryname#1{%
   \expandafter\let\expandafter\@tempa\csname cat!#1\endcsname%
   \ifx\@tempa\relax#1\else\@tempa\fi}
+\definedescribecategory{sym}{symbol}
 \definedescribecategory{fun}{function}
 \definedescribecategory{gf}{generic function}
 \definedescribecategory{var}{variable}
 \definedescribecategory{const}{constant}
 \definedescribecategory{meth}{primary method}
-\definedescribecategory{ar-meth}{around-method}
-\definedescribecategory{be-meth}{before-method}
-\definedescribecategory{af-meth}{after-method}
+\definedescribecategory{ar-meth}{around method}
+\definedescribecategory{be-meth}{before method}
+\definedescribecategory{af-meth}{after method}
 \definedescribecategory{cls}{class}
 \definedescribecategory{ty}{type}
 \definedescribecategory{mac}{macro}
+\definedescribecategory{lmac}{local macro}
+\definedescribecategory{parse}{parser spec}
+\definedescribecategory{parseform}{parser form}
+\definedescribecategory{opt}{option handler}
+\definedescribecategory{optmac}{option macro}
 \def\nlret{\\\hspace{4em}\returns}
 
 \def\q@{\q@}
-\newenvironment{describe}[3][\q@]{%
+\def\parse@dhd#1{\@ifnextchar[{\parse@dhd@a{#1}}{\parse@dhd@c{#1}}}
+\def\parse@dhd@a#1[#2]{#1{#2}}
+\def\parse@dhd@c#1#2#3{\parse@dhd@cc{#1}{#2}{#3}#3 \q@}
+\def\parse@dhd@cc#1#2#3#4 #5\q@{#1{#4}{#2}{#3}}
+
+\newif\if@dheadfirst
+\def\dhead{\parse@dhd\dhead@}
+\def\dhead@#1#2#3{%
+  \if@dheadfirst\global\@dheadfirstfalse\else\relax\\[\smallskipamount]\fi%
+  {\let\protect\@empty\def\@uscore{_\@gobble}\message{#2:#1}%
+   \def\@uscore{-\@gobble}\edef\@tempa{\noexpand\label{#2:#1}}\@tempa}%
+  \rlap{\rightline{\normalfont\bfseries[\describecategoryname{#2}]}}%
+  #3%
+}
+
+\def\desc@begin#1{%
   \normalfont%
-  \par\goodbreak%
-  \vspace{\bigskipamount}%
-  \setbox\z@\hbox{\bfseries[\describecategoryname{#2}]}%
-  \dimen@\linewidth\advance\dimen@-\wd\z@%
-  \def\@temp##1 ##2\q@{%
-    \message{#2:##1}%
-    {\def\@uscore####1{-}\edef\@tempb{\noexpand\label{#2:##1}}\@tempb}%
-  }%
-  \def\@tempa{#1}\ifx\@tempa\q@\@temp#3 \q@\else\@temp{#1} \q@\fi%
-  \edef\@temp{{\the\linewidth}{@{}p{\the\dimen@}%
-      @{\extracolsep{\fill}}l@{\extracolsep{0pt}}}}%
-  \noindent\csname tabular*\expandafter\endcsname\@temp%
-  \tabbing\codeface#3\endtabbing&\unhbox\z@\\\endtabular%
-%  \@afterheading%
-  \list{}{\rightmargin\z@}\item%
-}{%
-  \endlist%
+  \if@nobreak\else\par\goodbreak\fi%
+  \global\@dheadfirsttrue%
+  \begingroup%
+    \codeface%
+    \let\@endparenv\relax%
+    \clubpenalty\@M \widowpenalty\@M \interlinepenalty50%
+    \tabbing#1\endtabbing%
+  \endgroup%
+  \penalty\@M\@afterheading%
+  \list{}{\rightmargin\z@\topsep\z@}\item%
 }
+\let\desc@end\endlist
+
+\@namedef{describe*}#1{\desc@begin{#1}}
+\expandafter\let\csname enddescribe*\endcsname\desc@end
+\def\describe{\parse@dhd\desc@}
+\def\desc@#1#2#3{\desc@begin{\dhead@{#1}{#2}{#3}}}
+\let\enddescribe\desc@end
 
-%%% ----- That's all, folks --------------------------------------------------
-\endinput
\ No newline at end of file
+%%%----- That's all, folks --------------------------------------------------
+\endinput