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%%
%% 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'.
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