enumerate.sty

一个最容易懂的LaTeX 入门教材。这个文档已经被翻译成很多种语言

%%
%% This is file `enumerate.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% enumerate.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Copyright 1993 1994 1995 1996 1997 1998 1999
%% The LaTeX3 Project and any individual authors listed elsewhere
%% in this file.
%% 
%% This file is part of the Standard LaTeX `Tools Bundle'.
%% -------------------------------------------------------
%% 
%%  This file, and all the other files in this bundle as listed below,
%%  may be distributed under the terms of the LaTeX Project Public
%%  License, as described in lppl.txt in the base LaTeX distribution.
%%  Either version 1.0 or, at your option, any later version.
%% 
%% File: enumerate.dtx Copyright  1993 1994 1999 David Carlisle
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{enumerate}
          [1999/03/05 v3.00 enumerate extensions (DPC)]
\newtoks\@enLab
\def\@enQmark{?}
\def\@enLabel#1#2{%
  \edef\@enThe{\noexpand#1{\@enumctr}}%
  \@enLab\expandafter{\the\@enLab\csname the\@enumctr\endcsname}%
  \@enloop}
\def\@enSpace{\afterassignment\@enSp@ce\let\@tempa= }
\def\@enSp@ce{\@enLab\expandafter{\the\@enLab\space}\@enloop}
\def\@enGroup#1{\@enLab\expandafter{\the\@enLab{#1}}\@enloop}
\def\@enOther#1{\@enLab\expandafter{\the\@enLab#1}\@enloop}
\def\@enloop{\futurelet\@entemp\@enloop@}
\def\@enloop@{%
  \ifx A\@entemp         \def\@tempa{\@enLabel\Alph  }\else
  \ifx a\@entemp         \def\@tempa{\@enLabel\alph  }\else
  \ifx i\@entemp         \def\@tempa{\@enLabel\roman }\else
  \ifx I\@entemp         \def\@tempa{\@enLabel\Roman }\else
  \ifx 1\@entemp         \def\@tempa{\@enLabel\arabic}\else
  \ifx \@sptoken\@entemp \let\@tempa\@enSpace         \else
  \ifx \bgroup\@entemp   \let\@tempa\@enGroup         \else
  \ifx \@enum@\@entemp   \let\@tempa\@gobble          \else
                         \let\@tempa\@enOther
                         \@enhook
             \fi\fi\fi\fi\fi\fi\fi\fi
  \@tempa}
\providecommand\@enhook{}
\def\enumerate{%
  \ifnum \@enumdepth >3 \@toodeep\else
      \advance\@enumdepth \@ne
      \edef\@enumctr{enum\romannumeral\the\@enumdepth}\fi
  \@ifnextchar[{\@@enum@}{\@enum@}}
\def\@@enum@[#1]{%
  \@enLab{}\let\@enThe\@enQmark
  \@enloop#1\@enum@
  \ifx\@enThe\@enQmark\@warning{The counter will not be printed.%
   ^^J\space\@spaces\@spaces\@spaces The label is: \the\@enLab}\fi
  \expandafter\edef\csname label\@enumctr\endcsname{\the\@enLab}%
  \expandafter\let\csname the\@enumctr\endcsname\@enThe
  \csname c@\@enumctr\endcsname7
  \expandafter\settowidth
            \csname leftmargin\romannumeral\@enumdepth\endcsname
            {\the\@enLab\hspace{\labelsep}}%
  \@enum@}
\def\@enum@{\list{\csname label\@enumctr\endcsname}%
           {\usecounter{\@enumctr}\def\makelabel##1{\hss\llap{##1}}}}
\endinput
%%
%% End of file `enumerate.sty'.