%%
%% This is file `twoopt.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% twoopt.dtx  (with options: `package')
%% 
%% This file is part of the package `twoopt' for use with LaTeX2e.
%% 
%% Function: Defining commands with two optional arguments.
%% 
%% Copyright (C) 1998,1999 Heiko Oberdiek.
%% 
%% This program can be redistributed and/or modified
%% under the terms of the LaTeX Project Public License
%% distributed from CTAN archives in directory
%% macros/latex/base/lppl.txt; either version 1 of
%% the License, or (at your option) any later version.
%% 
%% Please send error reports and suggestions for improvements to
%%   Heiko Oberdiek <oberdiek@ruf.uni-freiburg.de>.
%% 
\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{twoopt}
  [1999/04/12 v1.3 Definitions with two optional arguments (HO)]
%% \CharacterTable
%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \<
%%   Equals        \=     Greater than  \>     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%%   Right brace   \}     Tilde         \~}
%%
\newcommand{\newcommandtwoopt}{%
  \@ifstar{\@newcommandtwoopt*}{\@newcommandtwoopt{}}%
}
\newcommand{\@newcommandtwoopt}{}
\long\def\@newcommandtwoopt#1#2{%
  \expandafter\@@newcommandtwoopt
    \csname2\string#2\endcsname{#1}{#2}%
}
\newcommand{\@@newcommandtwoopt}{}
\long\def\@@newcommandtwoopt#1#2#3[#4][#5][#6]{%
  \newcommand#2#3[1][{#5}]{%
    \to@ScanSecondOptArg#1{##1}{#6}%
  }%
  \newcommand#2#1[{#4}]%
}
\newcommand{\renewcommandtwoopt}{%
  \@ifstar{\@renewcommandtwoopt*}{\@renewcommandtwoopt{}}%
}
\newcommand{\@renewcommandtwoopt}{}
\long\def\@renewcommandtwoopt#1#2{%
  \begingroup
    \escapechar\m@ne
    \xdef\@gtempa{{\string#2}}%
  \endgroup
  \expandafter\@ifundefined\@gtempa{%
    \@latex@error{\noexpand#2undefined}\@ehc
  }{}%
  \let#2\@undefined
  \expandafter\let\csname2\string#2\endcsname\@undefined
  \expandafter\@@newcommandtwoopt
    \csname2\string#2\endcsname{#1}{#2}%
}
\newcommand{\providecommandtwoopt}{%
  \@ifstar{\@providecommandtwoopt*}{\@providecommandtwoopt{}}%
}
\newcommand{\@providecommandtwoopt}{}
\long\def\@providecommandtwoopt#1#2{%
  \begingroup
    \escapechar\m@ne
    \xdef\@gtempa{{\string#2}}%
  \endgroup
  \expandafter\@ifundefined\@gtempa{%
    \expandafter\@@newcommandtwoopt
      \csname2\string#2\endcsname{#1}{#2}%
  }{%
    \let\to@dummyA\@undefined
    \let\to@dummyB\@undefined
    \@@newcommandtwoopt\to@dummyA{#1}\to@dummyB
  }%
}
\newcommand{\to@ScanSecondOptArg}[3]{%
  \@ifnextchar[{%
    \expandafter#1\to@ArgOptToArgArg{#2}%
  }{%
    #1{#2}{#3}%
  }%
}
\newcommand{\to@ArgOptToArgArg}{}
\long\def\to@ArgOptToArgArg#1[#2]{{#1}{#2}}
\endinput
%%
%% End of file `twoopt.sty'.
