path: root/Master/texmf-dist/tex/latex/bytefield/bytefield.sty

%%
%% This is file `bytefield.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% bytefield.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Copyright (C) 2000-2021 by Scott Pakin <scott+bf@pakin.org>
%% 
%% This file may be distributed and/or modified under the conditions of
%% the LaTeX Project Public License, either version 1.3a of this license
%% or (at your option) any later version.  The latest version of this
%% license is in:
%% 
%%    http://www.latex-project.org/lppl.txt
%% 
%% and version 1.3c or later is part of all distributions of LaTeX version
%% 2006/05/20 or later.
%% 
\NeedsTeXFormat{LaTeX2e}[1999/12/01]
\ProvidesPackage{bytefield}
    [2021/08/17 v2.7 Network protocol diagrams]
\RequirePackage{calc}[1998/07/07]
\RequirePackage{keyval}
\def\bf@newdimen#1{\advance\count11 by 1
  \ch@ck1\insc@unt\dimen
  \allocationnumber=\count11
  \dimendef#1=\allocationnumber
  \wlog{\string#1=\string\dimen\the\allocationnumber\space (locally)}%
}
\AtBeginDocument{%
  \expandafter\ifx\csname e@alloc\endcsname\relax
    \expandafter\ifx\csname locdimen\endcsname\relax
    \else
      \let\bf@newdimen=\locdimen
    \fi
  \else
    \let\bf@newdimen=\newdimen
  \fi
}
\newlength{\bytefield@height}
\newif\ifcounting@words
\newlength{\bytefield@height@increment}
\DeclareRobustCommand{\inc@bytefield@height}[1]{%
  \setlength{\bytefield@height@increment}{#1}%
  \global\advance\bytefield@height by \bytefield@height@increment
}
\newsavebox{\entire@bytefield@picture}
\newenvironment{bytefield}[2][]{%
  \bf@bytefieldsetup{#1}%
  \renewcommand{\baselinestretch}{}%
  \selectfont
  \def\bits@wide{#2}%
  \let\old@nl=\\%
  \let\amp=&%
  \catcode`\&=10
  \openup -1pt
  \setlength{\bytefield@height}{0pt}%
  \setlength{\unitlength}{1pt}%
  \global\counting@wordstrue
  \begin{lrbox}{\entire@bytefield@picture}%
  \renewcommand{\\}[1][0pt]{%
    \unskip
    \vspace{##1}%
    \amp\show@wordlabelr\cr
    \ignorespaces\global\counting@wordstrue\make@lspace\amp}%
  \vbox\bgroup\ialign\bgroup##\amp##\amp##\cr\amp
}{%
  \unskip
  \amp\show@wordlabelr\cr\egroup\egroup
  \end{lrbox}%
  \usebox{\entire@bytefield@picture}%
}
\newcommand*{\bf@bitformatting}{\tiny}
\newcommand*{\bf@boxformatting}{\centering}
\newlength{\bf@bitwidth}
\settowidth{\bf@bitwidth}{\bf@bitformatting{99i}}
\newlength{\bf@bitheight}
\setlength{\bf@bitheight}{4ex}
\newlength{\units@wide}
\newlength{\units@tall}
\newcommand*{\bf@call@box@cmd}[1]{%
  \def\bf@call@box@func{#1}%
  \bf@call@box@cmd@i
}
\newcommand*{\bf@call@box@cmd@i}[2][lrtb]{%
  \def\bf@call@box@arg@i{#1}%
  \def\bf@call@box@arg@ii{#2}%
  \bf@call@box@cmd@ii
}
\newcommand*{\bf@call@box@cmd@ii}[2][]{%
  \def\bf@call@box@arg@iii{#1}%
  \def\bf@call@box@arg@iv{#2}%
  \bf@call@box@func
}
\DeclareRobustCommand{\bitbox}{\bf@call@box@cmd{\bf@bitbox}}
\def\bf@bitbox{%
  \bgroup
    \expandafter\bf@parse@bitbox@arg\expandafter{\bf@call@box@arg@i}%
    \setlength{\units@wide}{\bf@bitwidth * \bf@call@box@arg@ii}%
    \expandafter\bf@bytefieldsetup\expandafter{\bf@call@box@arg@iii}%
    \@ifundefined{bf@bgcolor}{%
    }{%
      \rlap{%
        \draw@bit@picture{\strip@pt\units@wide}{\strip@pt\bf@bitheight}{%
          \color{\bf@bgcolor}%
          \rule{\width}{\height}%
        }%
      }%
    }%
    \draw@bit@picture{\strip@pt\units@wide}{\strip@pt\bf@bitheight}{%
      \bf@call@box@arg@iv
    }%
  \egroup
  \ignorespaces
}
\DeclareRobustCommand{\wordbox}{\bf@call@box@cmd{\bf@wordbox}}
\def\bf@wordbox{%
  \bgroup
    \expandafter\bf@parse@bitbox@arg\expandafter{\bf@call@box@arg@i}%
    \setlength{\units@wide}{\bf@bitwidth * \bits@wide}%
    \setlength{\units@tall}{\bf@bitheight * \bf@call@box@arg@ii}%
    \expandafter\bf@bytefieldsetup\expandafter{\bf@call@box@arg@iii}%
    \@ifundefined{bf@bgcolor}{%
    }{%
      \rlap{%
        \draw@bit@picture{\strip@pt\units@wide}{\strip@pt\units@tall}{%
          \color{\bf@bgcolor}%
          \rule{\width}{\height}%
        }%
      }%
    }%
    \draw@bit@picture{\strip@pt\units@wide}{\strip@pt\units@tall}{%
      \bf@call@box@arg@iv
    }%
    \@ifundefined{bf@per@word}{}{\bf@invoke@per@word{\bf@call@box@arg@ii}}%
  \egroup
  \ignorespaces
}
\DeclareRobustCommand{\draw@bit@picture}[3]{%
  \begin{picture}(#1,#2)%
    \put(0,0){\makebox(#1,#2){\parbox{#1\unitlength}{%
      \bf@set@user@dimens{#1}{#2}%
      \bf@boxformatting{#3\par}}}}%
    \ifbitbox@top
      \put(0,#2){\line(1,0){#1}}%
    \fi
    \ifbitbox@bottom
      \put(0,0){\line(1,0){#1}}%
    \fi
    \ifbitbox@left
      \put(0,0){\line(0,1){#2}}%
    \fi
    \ifbitbox@right
      \put(#1,0){\line(0,1){#2}}%
    \fi
  \end{picture}%
  \ifcounting@words
    \inc@bytefield@height{\unitlength * \real{#2}}%
    \global\counting@wordsfalse
  \fi
}
\newcommand{\bf@invoke@per@word}[1]{%
  \begin{picture}(0,0)%
    \@tempcnta=0
    \@tempdima=#1\bf@bitheight
    \bf@set@user@dimens{\strip@pt\units@wide}{\strip@pt\units@tall}%
    \loop
      \advance\@tempdima by -\bf@bitheight
      \bgroup
        \put(-\strip@pt\units@wide, \strip@pt\@tempdima){%
          \expandafter\bf@per@word\expandafter{\the\@tempcnta}{#1}%
        }%
      \egroup
      \advance\@tempcnta by 1\relax
      \ifnum#1>\@tempcnta
    \repeat
  \end{picture}%
}
\newcommand{\bf@set@user@dimens}[2]{%
  \bf@newdimen\width
  \bf@newdimen\height
  \bf@newdimen\depth
  \bf@newdimen\totalheight
  \width=#1\unitlength
  \height=#2\unitlength
  \depth=0pt%
  \totalheight=#2\unitlength
  \def\widthunits{#1}%
  \def\heightunits{#2}%
}
\DeclareRobustCommand{\bitboxes}{%
  \@ifstar
      {\bf@call@box@cmd{\bf@bitboxes@star}}%
      {\bf@call@box@cmd{\bf@bitboxes@no@star}}%
}
\def\bf@relax{\relax}
\def\bf@bitboxes@no@star{%
  \expandafter\bf@bitboxes@no@star@i\bf@call@box@arg@iv\relax
  \ignorespaces
}
\def\bf@bitboxes@no@star@i#1{%
  \def\bf@call@box@arg@iv{#1}%
  \ifx\bf@call@box@arg@iv\bf@relax
    \let\next=\relax
  \else
    \bf@bitbox
    \let\next=\bf@bitboxes@no@star@i
  \fi
  \next
}
\def\bf@bitboxes@star{%
  \edef\bf@bitboxes@sides{\bf@call@box@arg@i}%
  \expandafter\bf@bitboxes@star@i\bf@call@box@arg@iv\relax\relax
  \ignorespaces
}
\def\bf@bitboxes@star@i#1#2{%
  \def\bf@call@box@arg@iv{#1}%
  \def\bf@bitboxes@arg@ii{#2}%
  \ifx\bf@bitboxes@arg@ii\bf@relax
    \bf@bitbox
    \let\next=\relax
  \else
    \edef\bf@call@box@arg@i{\bf@bitboxes@sides R}%
    \bf@bitbox
    \def\next{\bf@bitboxes@star@ii{#2}}%
  \fi
  \next
}
\def\bf@bitboxes@star@ii#1#2{%
  \def\bf@call@box@arg@iv{#1}%
  \def\bf@bitboxes@arg@ii{#2}%
  \ifx\bf@bitboxes@arg@ii\bf@relax
    \edef\bf@call@box@arg@i{\bf@bitboxes@sides L}%
  \else
    \edef\bf@call@box@arg@i{\bf@bitboxes@sides LR}%
  \fi
  \ifx\bf@call@box@arg@iv\bf@relax
    \let\next=\relax
  \else
    \bf@bitbox
    \def\next{\bf@bitboxes@star@ii{#2}}%
  \fi
  \next
}
\newif\ifbitbox@top
\newif\ifbitbox@bottom
\newif\ifbitbox@left
\newif\ifbitbox@right
\def\bf@parse@bitbox@arg#1{%
  \bitbox@topfalse
  \bitbox@bottomfalse
  \bitbox@leftfalse
  \bitbox@rightfalse
  \bf@parse@bitbox@sides#1X%
}
\def\bf@parse@bitbox@sides#1{%
  \ifx#1X%
  \else
    \ifx#1t%
      \bitbox@toptrue
    \else
      \ifx#1b%
        \bitbox@bottomtrue
      \else
        \ifx#1l%
          \bitbox@lefttrue
        \else
          \ifx#1r%
            \bitbox@righttrue
          \else
            \ifx#1T%
              \bitbox@topfalse
            \else
              \ifx#1B%
                \bitbox@bottomfalse
              \else
                \ifx#1L%
                  \bitbox@leftfalse
                \else
                  \ifx#1R%
                    \bitbox@rightfalse
                  \else
                    \PackageWarning{bytefield}{Unrecognized box side `#1'}%
                  \fi
                \fi
              \fi
            \fi
          \fi
        \fi
      \fi
    \fi
    \expandafter\bf@parse@bitbox@sides
  \fi
}
\newlength{\units@high}
\DeclareRobustCommand{\skippedwords}[1][2ex]{%
  \setlength{\units@wide}{\bf@bitwidth * \bits@wide}%
  \setlength{\units@high}{1pt * \ratio{\units@wide}{6.0pt}}%
  \setlength{\units@tall}{#1 + \units@high}%
  \edef\num@wide{\strip@pt\units@wide}%
  \edef\num@tall{\strip@pt\units@tall}%
  \edef\num@high{\strip@pt\units@high}%
  \begin{picture}(\num@wide,\num@tall)
    \put(0,\num@tall){\line(6,-1){\num@wide}}
    \put(\num@wide,0){\line(-6,1){\num@wide}}
    \put(0,0){\line(0,1){\num@high}}
    \put(\num@wide,\num@tall){\line(0,-1){\num@high}}
  \end{picture}%
  \ifcounting@words
    \inc@bytefield@height{\unitlength * \real{\num@tall}}%
    \global\counting@wordsfalse
  \fi
}
\newcommand*{\bf@bit@endianness}{l}
\newcommand*{\bf@first@bit}{0}
\DeclareRobustCommand{\bitheader}[2][]{%
  \bf@parse@bitbox@arg{lrtb}%
  \setlength{\units@wide}{\bf@bitwidth * \bits@wide}%
  \setlength{\units@tall}{\heightof{\bf@bitformatting{1234567890}}}%
  \setlength{\units@high}{\units@tall * -1}%
  \bf@process@bitheader@opts{#1}%
  \begin{picture}(\strip@pt\units@wide,\strip@pt\units@tall)%
                 (0,\strip@pt\units@high)
    \bf@parse@range@list#2,X,
  \end{picture}%
  \ifcounting@words
    \inc@bytefield@height{\unitlength * \real{\strip@pt\units@tall}}%
    \global\counting@wordsfalse
  \fi
  \ignorespaces
}
\def\bf@parse@range@list#1,{%
  \ifx X#1
  \else
    \bf@parse@range#1-#1-#1\relax
    \expandafter\bf@parse@range@list
  \fi
}
\newlength{\header@xpos}
\newcounter{header@val}
\newcounter{max@header@val}
\def\bf@parse@range#1-#2-#3\relax{%
  \setcounter{header@val}{#1}
  \setcounter{max@header@val}{#2 + 1}
  \loop
    \ifnum\value{header@val}<\value{max@header@val}%
      \if\bf@bit@endianness b%
        \setlength{\header@xpos}{%
          \bf@bitwidth * (\bits@wide - \value{header@val} + \bf@first@bit - 1)}%
      \else
        \setlength{\header@xpos}{\bf@bitwidth * (\value{header@val} - \bf@first@bit)}%
      \fi
      \put(\strip@pt\header@xpos,0){%
        \makebox(\strip@pt\bf@bitwidth,\strip@pt\units@tall){%
          \bf@bitformatting{\theheader@val}}}
      \addtocounter{header@val}{1}
  \repeat
}
\newcommand*{\bf@process@bitheader@opts}{%
  \let\KV@bytefield@l=\KV@bitheader@l
  \let\KV@bytefield@b=\KV@bitheader@b
  \let\KV@bytefield@l@default=\KV@bitheader@l@default
  \let\KV@bytefield@b@default=\KV@bitheader@b@default
  \setkeys{bytefield}%
}
\define@key{bitheader}{l}[true]{%
  \expandafter\ifx\csname curlyshrinkage\endcsname\relax
    \PackageWarning{bytefield}{%
      The "l" argument to \protect\bitheader\space is deprecated.\MessageBreak
      Instead, please use "endianness=little", which can\MessageBreak
      even be declared globally for the entire document.\MessageBreak
      This warning occurred}%
  \fi
  \def\bf@bit@endianness{l}%
}
\define@key{bitheader}{b}[true]{%
  \expandafter\ifx\csname curlyshrinkage\endcsname\relax
    \PackageWarning{bytefield}{%
      The "b" argument to \protect\bitheader\space is deprecated.\MessageBreak
      Instead, please use "endianness=big", which can\MessageBreak
      even be declared globally for the entire document.\MessageBreak
      This warning occurred}%
  \fi
  \def\bf@bit@endianness{b}%
}
\def\bf@leftcurlyshrinkage{5pt}
\def\bf@rightcurlyshrinkage{5pt}
\def\bf@leftcurlyspace{1ex}
\def\bf@rightcurlyspace{1ex}
\def\bf@leftlabelspace{0.5ex}
\def\bf@rightlabelspace{0.5ex}
\let\bf@leftcurly=\{
\let\bf@rightcurly=\}
\let\bf@leftcurlystyle=\relax
\let\bf@rightcurlystyle=\relax
\newbox{\curly@box}
\def\store@rcurly#1#2{%
  \begingroup
    \bf@newdimen\curly@height
    \setlength{\curly@height}{#2 - \bf@rightcurlyshrinkage}%
    \bf@newdimen\half@curly@height
    \setlength{\half@curly@height}{0.5\curly@height}%
    \bf@newdimen\curly@shift
    \setlength{\curly@shift}{\bf@rightcurlyshrinkage}%
    \setlength{\curly@shift}{\half@curly@height + 0.5\curly@shift}%
    \addtolength{\curly@shift}{-\fontdimen22\textfont2}%
    \global\sbox{#1}{\raisebox{\curly@shift}{%
      \bf@rightcurlystyle{%
         $\left.
         \vrule height\half@curly@height
                width 0pt
                depth\half@curly@height\right\bf@rightcurly$%
      }%
    }}%
  \endgroup
}
\def\store@lcurly#1#2{%
  \begingroup
    \bf@newdimen\curly@height
    \setlength{\curly@height}{#2 - \bf@leftcurlyshrinkage}%
    \bf@newdimen\half@curly@height
    \setlength{\half@curly@height}{0.5\curly@height}%
    \bf@newdimen\curly@shift
    \setlength{\curly@shift}{\bf@leftcurlyshrinkage}%
    \setlength{\curly@shift}{\half@curly@height + 0.5\curly@shift}%
    \addtolength{\curly@shift}{-\fontdimen22\textfont2}%
    \global\sbox{#1}{\raisebox{\curly@shift}{%
      \bf@leftcurlystyle{%
         $\left\bf@leftcurly
         \vrule height\half@curly@height
                width 0pt
                depth\half@curly@height\right.$%
      }%
    }}%
  \endgroup
}
\def\show@wordlabelr{}
\newlength{\wordlabelr@start}
\newlength{\wordlabelr@end}
\newenvironment{rightwordgroup}[2][]{%
  \endgroup
  \global\wordlabelr@start=\bytefield@height
  \gdef\wordlabelr@params{#1}%
  \gdef\wordlabelr@text{#2}%
  \ignorespaces
}{%
  \begingroup
  \global\wordlabelr@end=\bytefield@height
  \gdef\show@wordlabelr{%
    \sbox{\word@label@box}{%
      \begin{tabular}[b]{@{}l@{}}\wordlabelr@text\end{tabular}%
    }%
    \settowidth{\label@box@width}{\usebox{\word@label@box}}%
    \setlength{\label@box@height}{\wordlabelr@end-\wordlabelr@start}%
    \expandafter\bf@bytefieldsetup\expandafter{\wordlabelr@params}%
    \store@rcurly{\curly@box}{\label@box@height}%
    \bf@newdimen\total@box@width
    \setlength{\total@box@width}{%
      \bf@rightcurlyspace +
      \widthof{\usebox{\curly@box}} +
      \bf@rightlabelspace +
      \label@box@width
    }%
    \begin{picture}(\strip@pt\total@box@width,0)
      \put(0,0){%
        \hspace*{\bf@rightcurlyspace}%
        \usebox{\curly@box}%
        \hspace*{\bf@rightlabelspace}%
        \makebox(\strip@pt\label@box@width,\strip@pt\label@box@height){%
          \usebox{\word@label@box}%
        }%
      }%
    \end{picture}%
    \gdef\show@wordlabelr{}}%
  \def\@currenvir{rightwordgroup}%
  \ignorespacesafterend
}
\newlength{\wordlabell@start}
\newlength{\wordlabell@end}
\newlength{\total@lbox@width}
\gdef\make@lspace{}
\newenvironment{leftwordgroup}[2][]{%
  \global\wordlabell@start=\bytefield@height
  \gdef\wordlabell@params{#1}%
  \gdef\wordlabell@text{#2}%
  \bf@bytefieldsetup{#1}%
  \sbox{\word@label@box}{%
    \begin{tabular}[b]{@{}l@{}}\wordlabell@text\end{tabular}}%
  \settowidth{\label@box@width}{\usebox{\word@label@box}}%
  \store@lcurly{\curly@box}{5cm}%
  \setlength{\total@lbox@width}{%
    \bf@leftcurlyspace +
    \widthof{\usebox{\curly@box}} +
    \bf@leftlabelspace +
    \label@box@width}%
  \global\total@lbox@width=\total@lbox@width
  \gdef\make@lspace{%
    \hspace*{\total@lbox@width}%
    \gdef\make@lspace{}%
  }%
  \endgroup
  \ignorespaces
}{%
  \begingroup
  \global\wordlabell@end=\bytefield@height
  \bf@newdimen\starting@point
  \setlength{\starting@point}{%
    -\total@lbox@width - \bf@bitwidth*\bits@wide}%
  \sbox{\word@label@box}{%
    \begin{tabular}[b]{@{}l@{}}\wordlabell@text\end{tabular}}%
  \settowidth{\label@box@width}{\usebox{\word@label@box}}%
  \setlength{\label@box@height}{\wordlabell@end-\wordlabell@start}%
  \expandafter\bf@bytefieldsetup\expandafter{\wordlabell@params}%
  \store@lcurly{\curly@box}{\label@box@height}%
  \begin{picture}(0,0)
    \put(\strip@pt\starting@point,0){%
      \makebox(\strip@pt\label@box@width,\strip@pt\label@box@height){%
        \usebox{\word@label@box}}%
      \hspace*{\bf@leftlabelspace}%
      \usebox{\curly@box}%
      \hspace*{\bf@leftcurlyspace}}
  \end{picture}%
  \def\@currenvir{leftwordgroup}%
  \ignorespacesafterend
}
\newlength{\label@box@width}
\newlength{\label@box@height}
\newsavebox{\word@label@box}
\newcommand{\bf@enter@compatibility@mode@i}{%
  \PackageInfo{bytefield}{Entering version 1 compatibility mode}%
  \newlength{\bitwidth}%
  \newlength{\byteheight}%
  \newlength{\curlyspace}%
  \newlength{\labelspace}%
  \newlength{\curlyshrinkage}%
  \settowidth{\bitwidth}{\tiny 99i}%
  \setlength{\byteheight}{4ex}%
  \setlength{\curlyspace}{1ex}%
  \setlength{\labelspace}{0.5ex}%
  \setlength{\curlyshrinkage}{5pt}%
  \let\newbytefield=\bytefield
  \let\endnewbytefield=\endbytefield
  \renewenvironment{bytefield}[1]{%
    \begin{newbytefield}[%
      bitwidth=\bitwidth,
      bitheight=\byteheight,
      curlyspace=\curlyspace,
      labelspace=\labelspace,
      curlyshrinkage=\curlyshrinkage]{##1}%
  }{%
    \end{newbytefield}%
  }
  \def\wordgroupr{\begin{rightwordgroup}}
  \def\endwordgroupr{\end{rightwordgroup}}
  \def\wordgroupl{\begin{leftwordgroup}}
  \def\endwordgroupl{\end{leftwordgroup}}
  \renewcommand{\bytefieldsetup}[1]{%
    \PackageError{bytefield}{%
      The \protect\bytefieldsetup\space macro is not available in\MessageBreak
      version 1 compatibility mode%
    }{%
      Remove [compat1] from the \protect\usepackage{bytefield} line to
      make \protect\bytefieldsetup\MessageBreak
      available to this document.\space\space (The document may also need
      to be modified to use\MessageBreak
      the new bytefield interface.)
    }%
  }%
}
\newcommand{\wordgroupr}{%
  \PackageError{bytefield}{%
    Macros \protect\wordgroupr, \protect\wordgroupl, \protect\endwordgroupr,
    \MessageBreak
    and \protect\endwordgroupl\space no longer exist%
  }{%
    Starting with version 2.0, bytefield uses \protect\begin{wordgroupr}...
    \MessageBreak
    \protect\end{wordgroupr} and \protect\begin{wordgroupl}...%
    \protect\end{wordgroupl}\MessageBreak
    to specify word groups and a new \protect\bytefieldsetup\space macro to
    \MessageBreak
    change bytefield's various formatting parameters.%
  }%
}
\let\endwordgroupr=\wordgroupr
\let\wordgroupl=\wordgroupr
\let\endwordgroupl=\wordgroupr
\define@key{bytefield}{bitwidth}{%
  \def\bf@bw@arg{#1}%
  \def\bf@auto{auto}%
  \ifx\bf@bw@arg\bf@auto
    \settowidth{\bf@bitwidth}{\bf@bitformatting{99i}}%
  \else
    \setlength{\bf@bitwidth}{#1}%
  \fi
}
\define@key{bytefield}{bitheight}{\setlength{\bf@bitheight}{#1}}
\define@key{bytefield}{bitformatting}{\def\bf@bitformatting{#1}}
\define@key{bytefield}{boxformatting}{\def\bf@boxformatting{#1}}
\define@key{bytefield}{leftcurly}{\def\bf@leftcurly{#1}}
\define@key{bytefield}{rightcurly}{\def\bf@rightcurly{#1}}
\define@key{bytefield}{leftcurlyspace}{\def\bf@leftcurlyspace{#1}}
\define@key{bytefield}{rightcurlyspace}{\def\bf@rightcurlyspace{#1}}
\define@key{bytefield}{curlyspace}{%
  \def\bf@leftcurlyspace{#1}%
  \def\bf@rightcurlyspace{#1}%
}
\define@key{bytefield}{leftlabelspace}{\def\bf@leftlabelspace{#1}}
\define@key{bytefield}{rightlabelspace}{\def\bf@rightlabelspace{#1}}
\define@key{bytefield}{labelspace}{%
  \def\bf@leftlabelspace{#1}%
  \def\bf@rightlabelspace{#1}%
}
\define@key{bytefield}{leftcurlyshrinkage}{\def\bf@leftcurlyshrinkage{#1}}
\define@key{bytefield}{rightcurlyshrinkage}{\def\bf@rightcurlyshrinkage{#1}}
\define@key{bytefield}{curlyshrinkage}{%
  \def\bf@leftcurlyshrinkage{#1}%
  \def\bf@rightcurlyshrinkage{#1}%
}
\define@key{bytefield}{leftcurlystyle}{\def\bf@leftcurlystyle{#1}}
\define@key{bytefield}{rightcurlystyle}{\def\bf@rightcurlystyle{#1}}
\define@key{bytefield}{curlystyle}{%
  \def\bf@leftcurlystyle{#1}%
  \def\bf@rightcurlystyle{#1}%
}
\define@key{bytefield}{endianness}{\bf@parse@endianness{#1}}
\newcommand{\bf@parse@endianness}[1]{%
  \def\bf@little{little}%
  \def\bf@big{big}%
  \def\bf@arg{#1}%
  \ifx\bf@arg\bf@little
    \def\bf@bit@endianness{l}%
  \else
    \ifx\bf@arg\bf@big
      \def\bf@bit@endianness{b}%
    \else
      \PackageError{bytefield}{%
        Invalid argument "#1" to the endianness option%
      }{%
        The endianness option must be set to either "little" or
        "big".\MessageBreak
        Please specify either endianness=little or endianness=big.
      }%
    \fi
  \fi
}
\define@key{bytefield}{lsb}{\def\bf@first@bit{#1}}
\define@key{bytefield}{bgcolor}{\def\bf@bgcolor{#1}}
\define@key{bytefield}{perword}{\def\bf@per@word{#1}}
\newcommand{\bf@bytefieldsetup}{\setkeys{bytefield}}
\let\bytefieldsetup=\bf@bytefieldsetup
\DeclareOption{compat1}{\bf@enter@compatibility@mode@i}
\def\bf@package@options{}
\DeclareOption*{%
  \edef\next{%
    \noexpand\g@addto@macro\noexpand\bf@package@options{,\CurrentOption}%
  }%
  \next
}
\ProcessOptions\relax
\expandafter\bf@bytefieldsetup\expandafter{\bf@package@options}
\endinput
%%
%% End of file `bytefield.sty'.