repro-bundle/paper_source/fancyhdr.sty

%%
%% This is file `fancyhdr.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% fancyhdr.dtx  (with options: `fancyhdr')
%% 
%% This is a generated file.
%% 
%% This file may be distributed and/or modified under the conditions of
%% the LaTeX Project Public License, either version 1.3 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 1.3 or later is part of all distributions of LaTeX version
%% 2005/12/01 or later.
%% 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\NeedsTeXFormat{LaTeX2e}[2018-04-01]
\ProvidesPackage{fancyhdr}%
           [2025/02/07 v5.2
                  Extensive control of page headers and footers]%
% Copyright (C) 1994-2025 by Pieter van Oostrum <pieter@vanoostrum.org>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ifdefined\NewDocumentCommand\else\RequirePackage{xparse}\fi
\newif\iff@nch@check
\f@nch@checktrue
\DeclareOption{nocheck}{%
  \f@nch@checkfalse
}
\let\f@nch@gbl\relax
\newif\iff@nch@compatViii
\DeclareOption{compatV3}{%
  \PackageWarningNoLine{fancyhdr}{The `compatV3' option is deprecated.\MessageBreak
    It will disappear in one of the following releases.\MessageBreak
    Please change your document to work\MessageBreak
    without this option}
  \let\f@nch@gbl\global
  \f@nch@compatViiitrue
}
\newif\iff@nch@twoside
\f@nch@twosidefalse
\DeclareOption{twoside}{%
  \if@twoside\else\f@nch@twosidetrue\fi
}
\newcommand\f@nch@def[2]{%
  \def\temp@a{#2}\ifx\temp@a\@empty\f@nch@gbl\def#1{}%
                 \else\f@nch@gbl\def#1{#2\strut}\fi}
\DeclareOption{myheadings}{%
  \@ifundefined{chapter}{%
    \def\ps@myheadings{\ps@f@nch@fancyproto \let\@mkboth\@gobbletwo
      \fancyhf{}
      \fancyhead[LE,RO]{\thepage}%
      \fancyhead[RE]{\slshape\leftmark}%
      \fancyhead[LO]{\slshape\rightmark}%
      \let\sectionmark\@gobble
      \let\subsectionmark\@gobble
    }%
  }%
  {\def\ps@myheadings{\ps@f@nch@fancyproto \let\@mkboth\@gobbletwo
      \fancyhf{}
      \fancyhead[LE,RO]{\thepage}%
      \fancyhead[RE]{\slshape\leftmark}%
      \fancyhead[LO]{\slshape\rightmark}%
      \let\chaptermark\@gobble
      \let\sectionmark\@gobble
    }%
  }%
}
\DeclareOption{headings}{%
  \@ifundefined{chapter}{%
    \if@twoside
      \def\ps@headings{\ps@f@nch@fancyproto \def\@mkboth{\protect\markboth}
        \fancyhf{}
        \fancyhead[LE,RO]{\thepage}%
        \fancyhead[RE]{\slshape\leftmark}%
        \fancyhead[LO]{\slshape\rightmark}%
        \def\sectionmark##1{%
          \markboth{\MakeUppercase{%
            \ifnum \c@secnumdepth >\z@ \thesection\quad \fi##1}}{}}%
        \def\subsectionmark##1{%
          \markright{%
            \ifnum \c@secnumdepth >\@ne \thesubsection\quad \fi##1}}%
      }%
    \else
      \def\ps@headings{\ps@f@nch@fancyproto \def\@mkboth{\protect\markboth}
        \fancyhf{}
        \fancyhead[LE,RO]{\thepage}%
        \fancyhead[RE]{\slshape\leftmark}%
        \fancyhead[LO]{\slshape\rightmark}%
        \def\sectionmark##1{%
          \markright {\MakeUppercase{%
            \ifnum \c@secnumdepth >\z@ \thesection\quad \fi##1}}}%
        \let\subsectionmark\@gobble % Not needed but inserted for safety
      }%
    \fi
  }{\if@twoside
      \def\ps@headings{\ps@f@nch@fancyproto \def\@mkboth{\protect\markboth}
        \fancyhf{}
        \fancyhead[LE,RO]{\thepage}%
        \fancyhead[RE]{\slshape\leftmark}%
        \fancyhead[LO]{\slshape\rightmark}%
        \def\chaptermark##1{%
          \markboth{\MakeUppercase{%
            \ifnum \c@secnumdepth >\m@ne \if@mainmatter
              \@chapapp\ \thechapter. \ \fi\fi##1}}{}}%
        \def\sectionmark##1{%
          \markright {\MakeUppercase{%
            \ifnum \c@secnumdepth >\z@ \thesection. \ \fi##1}}}%
      }%
    \else
      \def\ps@headings{\ps@f@nch@fancyproto \def\@mkboth{\protect\markboth}
        \fancyhf{}
        \fancyhead[LE,RO]{\thepage}%
        \fancyhead[RE]{\slshape\leftmark}%
        \fancyhead[LO]{\slshape\rightmark}%
        \def\chaptermark##1{%
          \markright{\MakeUppercase{%
            \ifnum \c@secnumdepth >\m@ne \if@mainmatter
              \@chapapp\ \thechapter. \ \fi\fi##1}}}%
        \let\sectionmark\@gobble % Not needed but inserted for safety
      }%
    \fi
  }%
}
\ProcessOptions*
\newcommand{\f@nch@forc}[3]{\expandafter\f@nchf@rc\expandafter#1\expandafter{#2}{#3}}
\newcommand{\f@nchf@rc}[3]{\def\temp@ty{#2}\ifx\@empty\temp@ty\else
                                    \f@nch@rc#1#2\f@nch@rc{#3}\fi}
\long\def\f@nch@rc#1#2#3\f@nch@rc#4{\def#1{#2}#4\f@nchf@rc#1{#3}{#4}}
\newcommand{\f@nch@for}[3]{\edef\@fortmp{#2}%
  \expandafter\@forloop#2,\@nil,\@nil\@@#1{#3}}
\newcommand\f@nch@default[3]{%
  \edef\temp@a{\lowercase{\edef\noexpand\temp@a{#3}}}\temp@a \def#1{}%
  \f@nch@forc\tmpf@ra{#2}%
  {\expandafter\f@nch@ifin\tmpf@ra\temp@a{\edef#1{#1\tmpf@ra}}{}}%
  \ifx\@empty#1\def#1{#2}\fi}
\newcommand{\f@nch@ifin}[4]{%
  \edef\temp@a{#2}\def\temp@b##1#1##2\temp@b{\def\temp@b{##1}}%
  \expandafter\temp@b#2#1\temp@b\ifx\temp@a\temp@b #4\else #3\fi}
\newcommand{\fancyhead}[2][]{\f@nch@fancyhf\fancyhead h[#1]{#2}}%
\newcommand{\fancyfoot}[2][]{\f@nch@fancyhf\fancyfoot f[#1]{#2}}%
\newcommand{\fancyhf}[2][]{\f@nch@fancyhf\fancyhf {}[#1]{#2}}%
\newcommand{\fancyheadoffset}[2][]{\f@nch@fancyhfoffs\fancyheadoffset h[#1]{#2}}%
\newcommand{\fancyfootoffset}[2][]{\f@nch@fancyhfoffs\fancyfootoffset f[#1]{#2}}%
\newcommand{\fancyhfoffset}[2][]{\f@nch@fancyhfoffs\fancyhfoffset {}[#1]{#2}}%
\def\f@nch@fancyhf@Echeck#1{%
  \if@twoside\else
    \iff@nch@twoside\else
      \if\f@nch@@eo e%
        \PackageWarning{fancyhdr} {\string#1's `E' option without twoside option is useless.\MessageBreak
          Please consider using the `twoside' option}%
  \fi\fi\fi
}
\long\def\f@nch@fancyhf#1#2[#3]#4{%
  \def\temp@c{}%
  \f@nch@forc\tmpf@ra{#3}%
  {\expandafter\f@nch@ifin\tmpf@ra{eolcrhf,EOLCRHF}%
    {}{\edef\temp@c{\temp@c\tmpf@ra}}}%
  \ifx\@empty\temp@c\else \PackageError{fancyhdr}{Illegal char `\temp@c' in
    \string#1 argument: [#3]}{}%
  \fi \f@nch@for\temp@c{#3}%
  {\f@nch@default\f@nch@@eo{eo}\temp@c
    \f@nch@fancyhf@Echeck{#1}%
    \f@nch@default\f@nch@@lcr{lcr}\temp@c
    \f@nch@default\f@nch@@hf{hf}{#2\temp@c}%
    \f@nch@forc\f@nch@eo\f@nch@@eo
        {\f@nch@forc\f@nch@lcr\f@nch@@lcr
          {\f@nch@forc\f@nch@hf\f@nch@@hf
            {\expandafter\f@nch@def\csname
              f@nch@\f@nch@eo\f@nch@lcr\f@nch@hf\endcsname {#4}}}}}}
\def\f@nch@fancyhfoffs#1#2[#3]#4{%
  \def\temp@c{}%
  \f@nch@forc\tmpf@ra{#3}%
  {\expandafter\f@nch@ifin\tmpf@ra{eolrhf,EOLRHF}%
    {}{\edef\temp@c{\temp@c\tmpf@ra}}}%
  \ifx\@empty\temp@c\else \PackageError{fancyhdr}{Illegal char `\temp@c' in
    \string#1 argument: [#3]}{}%
  \fi \f@nch@for\temp@c{#3}%
  {\f@nch@default\f@nch@@eo{eo}\temp@c
    \f@nch@fancyhf@Echeck{#1}%
    \f@nch@default\f@nch@@lcr{lr}\temp@c
    \f@nch@default\f@nch@@hf{hf}{#2\temp@c}%
    \f@nch@forc\f@nch@eo\f@nch@@eo
        {\f@nch@forc\f@nch@lcr\f@nch@@lcr
          {\f@nch@forc\f@nch@hf\f@nch@@hf
            {\expandafter\setlength\csname
              f@nch@offset@\f@nch@eo\f@nch@lcr\f@nch@hf\endcsname {#4}}}}}%
  \f@nch@setoffs}
\NewDocumentCommand {\fancyheadwidth}{ s O{} O{} m }
                      {\f@nch@fancyhfwidth{#1}\fancyheadwidth h[#2][#3]{#4}}%
\NewDocumentCommand {\fancyfootwidth}{ s O{} O{} m }
                      {\f@nch@fancyhfwidth{#1}\fancyfootwidth f[#2][#3]{#4}}%
\NewDocumentCommand {\fancyhfwidth}  { s O{} O{} m }
                      {\f@nch@fancyhfwidth{#1}\fancyhfwidth  {}[#2][#3]{#4}}%
\def\f@nch@fancyhfwidth#1#2#3[#4][#5]#6{%
  \setlength\@tempdima{#6}%
  \def\temp@c{}%
  \f@nch@forc\tmpf@ra{#4}%
  {\expandafter\f@nch@ifin\tmpf@ra{eolcrhf,EOLCRHF}%
    {}{\edef\temp@c{\temp@c\tmpf@ra}}}%
  \ifx\@empty\temp@c\else \PackageError{fancyhdr}{Illegal char `\temp@c' in
    \string#2 argument: [#4]}{}%
  \fi
  \f@nch@for\temp@c{#4}%
  {\f@nch@default\f@nch@@eo{eo}\temp@c
    \f@nch@fancyhf@Echeck{#2}%
    \f@nch@default\f@nch@@lcr{lcr}\temp@c
    \f@nch@default\f@nch@@hf{hf}{#3\temp@c}%
    \f@nch@forc\f@nch@eo\f@nch@@eo
        {\f@nch@forc\f@nch@lcr\f@nch@@lcr
          {\f@nch@forc\f@nch@hf\f@nch@@hf
            {%
              \IfBooleanTF{#1}{%
                \expandafter\edef\csname
                  f@nch@width@\f@nch@eo\f@nch@lcr\f@nch@hf\endcsname{\the\@tempdima}%
              }%
              {%
                \expandafter\def\csname
                  f@nch@width@\f@nch@eo\f@nch@lcr\f@nch@hf\endcsname{#6}%
              }%
              \csname f@nchdrwdt@align@v@\f@nch@hf\endcsname
              \edef\f@nch@align@@h{\f@nch@lcr}%
              \def\temp@a{#5}%
              \ifx\temp@a\@empty \else \f@nchdrwdt@align#5\@nil{#2}\fi
              \expandafter\edef\csname
                f@nch@align@\f@nch@eo\f@nch@lcr\f@nch@hf\endcsname
                   {\f@nch@align@@v\f@nch@align@@h}}}}}}
\def\f@nch@width@elh{\headwidth}
\def\f@nch@width@ech{\headwidth}
\def\f@nch@width@erh{\headwidth}
\def\f@nch@width@olh{\headwidth}
\def\f@nch@width@och{\headwidth}
\def\f@nch@width@orh{\headwidth}
\def\f@nch@width@elf{\headwidth}
\def\f@nch@width@ecf{\headwidth}
\def\f@nch@width@erf{\headwidth}
\def\f@nch@width@olf{\headwidth}
\def\f@nch@width@ocf{\headwidth}
\def\f@nch@width@orf{\headwidth}
\def\f@nch@align@elh{bl}
\def\f@nch@align@ech{bc}
\def\f@nch@align@erh{br}
\def\f@nch@align@olh{bl}
\def\f@nch@align@och{bc}
\def\f@nch@align@orh{br}
\def\f@nch@align@elf{tl}
\def\f@nch@align@ecf{tc}
\def\f@nch@align@erf{tr}
\def\f@nch@align@olf{tl}
\def\f@nch@align@ocf{tc}
\def\f@nch@align@orf{tr}
\def\f@nchdrwdt@align@v@h{\def\f@nch@align@@v{b}}%
\def\f@nchdrwdt@align@v@f{\def\f@nch@align@@v{t}}%
\long\def\f@nchdrwdt@align#1#2\@nil#3{%
  \f@nch@ifin{#1}{TtcbB-}{%
    \f@nch@ifin{#1}{-}{}{\def\f@nch@align@@v{#1}}%
    \def\@tempa{#2}%
    \ifx\@tempa\@empty \else \def\f@nch@align@@h{#2}\fi
  }%
  {\def\f@nch@align@@h{#1}}%
  \expandafter\f@nch@ifin\expandafter{\f@nch@align@@h}{lcrj}{}%
    {\PackageError{fancyhdr}
                  {\string#3: Illegal char `\f@nch@align@@h'\MessageBreak
                              in alignment argument}{}}%
}
\newcommand{\lhead}[2][\f@nch@olh]%
                     {\f@nch@def\f@nch@olh{#2}\f@nch@def\f@nch@elh{#1}}
\newcommand{\chead}[2][\f@nch@och]%
                     {\f@nch@def\f@nch@och{#2}\f@nch@def\f@nch@ech{#1}}
\newcommand{\rhead}[2][\f@nch@orh]%
                     {\f@nch@def\f@nch@orh{#2}\f@nch@def\f@nch@erh{#1}}
\newcommand{\lfoot}[2][\f@nch@olf]%
                     {\f@nch@def\f@nch@olf{#2}\f@nch@def\f@nch@elf{#1}}
\newcommand{\cfoot}[2][\f@nch@ocf]%
                     {\f@nch@def\f@nch@ocf{#2}\f@nch@def\f@nch@ecf{#1}}
\newcommand{\rfoot}[2][\f@nch@orf]%
                     {\f@nch@def\f@nch@orf{#2}\f@nch@def\f@nch@erf{#1}}
\newlength{\f@nch@headwidth} \let\headwidth\f@nch@headwidth
\newlength{\f@nch@offset@elh}
\newlength{\f@nch@offset@erh}
\newlength{\f@nch@offset@olh}
\newlength{\f@nch@offset@orh}
\newlength{\f@nch@offset@elf}
\newlength{\f@nch@offset@erf}
\newlength{\f@nch@offset@olf}
\newlength{\f@nch@offset@orf}
\newcommand{\headrulewidth}{0.4pt}
\newcommand{\footrulewidth}{0pt}
\@ifundefined{headruleskip}%
      {\newcommand{\headruleskip}{0pt}}{}
\@ifundefined{footruleskip}%
      {\newcommand{\footruleskip}{.3\normalbaselineskip}}{}
\newcommand{\plainheadrulewidth}{0pt}
\newcommand{\plainfootrulewidth}{0pt}
\newif\if@fancyplain \@fancyplainfalse
\def\fancyplain#1#2{\if@fancyplain#1\else#2\fi}
\headwidth=-123456789sp
\let\f@nch@raggedleft\raggedleft
\let\f@nch@raggedright\raggedright
\let\f@nch@centering\centering
\let\f@nch@everypar\everypar
\ifdefined\ExplSyntaxOn
  \ExplSyntaxOn
  \providecommand\IfFormatAtLeastTF{\@ifl@t@r\fmtversion}
  \IfFormatAtLeastTF{2021-06-01}{
    \def\f@nch@saveclr@parhook #1{
      \expandafter\let\csname f@nch@__hook~#1\expandafter\endcsname
                      \csname __hook~#1\endcsname
      \expandafter\let\csname f@nch@__hook_toplevel~#1\expandafter\endcsname
                      \csname __hook_toplevel~#1\endcsname
      \expandafter\let\csname f@nch@__hook_next~#1\expandafter\endcsname
                      \csname __hook_next~#1\endcsname
      \expandafter\let\csname f@nch@g__hook_#1_code_prop\expandafter\endcsname
                      \csname g__hook_#1_code_prop\endcsname
      \RemoveFromHook{#1}[*]
      \ClearHookNext{#1}
    }
    \def\f@nch@restore@parhook #1{
      \global\expandafter\let\csname __hook~#1\expandafter\endcsname
                             \csname f@nch@__hook~#1\endcsname
      \global\expandafter\let\csname __hook_toplevel~#1\expandafter\endcsname
                             \csname f@nch@__hook_toplevel~#1\endcsname
      \global\expandafter\let\csname __hook_next~#1\expandafter\endcsname
                             \csname f@nch@__hook_next~#1\endcsname
      \global\expandafter\let\csname g__hook_#1_code_prop\expandafter\endcsname
                             \csname f@nch@g__hook_#1_code_prop\endcsname
    }
    \def\f@nch@resetpar{
      \f@nch@everypar{}
      \f@nch@saveclr@parhook{para/before}
      \f@nch@saveclr@parhook{para/begin}
      \f@nch@saveclr@parhook{para/end}
      \f@nch@saveclr@parhook{para/after}
    }
    \def\f@nch@restorepar{
      \f@nch@restore@parhook{para/before}
      \f@nch@restore@parhook{para/begin}
      \f@nch@restore@parhook{para/end}
      \f@nch@restore@parhook{para/after}
    }
  }{
    \def\f@nch@resetpar{
      \f@nch@everypar{}
    }
    \def\f@nch@restorepar{}
  }
  \ExplSyntaxOff
\else
  \def\f@nch@resetpar{%
    \f@nch@everypar{}%
  }
  \def\f@nch@restorepar{}
\fi
\newcommand\f@nch@noUppercase[2][]{#2}
\def\f@nch@reset{\f@nch@resetpar\restorecr\endlinechar=13
  \catcode`\\=0\catcode`\{=1\catcode`\}=2\catcode`\$=3\catcode`\&=4
  \catcode`\#=6\catcode`\^=7\catcode`\_=8\catcode`\ =10\catcode`\@=11
  \catcode`\:=11\catcode`\~=13\catcode`\%=14
  \catcode0=15 %NULL
  \catcode9=10 %TAB
  \let\\\@normalcr \let\raggedleft\f@nch@raggedleft
  \let\raggedright\f@nch@raggedright \let\centering\f@nch@centering
  \def\baselinestretch{1}%
  \hsize=\headwidth
  \def\nouppercase##1{{%
      \let\uppercase\relax\let\MakeUppercase\f@nch@noUppercase
      \expandafter\let\csname MakeUppercase \endcsname\relax
      \expandafter\def\csname MakeUppercase\space\space\space\endcsname
                                                   [####1]####2{####2}%
      ##1}}%
  \@ifundefined{@normalsize} {\normalsize} % for ucthesis.cls
   {\@normalsize}%
  }
\newcommand*{\fancycenter}[1][1em]{%
  \@ifnextchar[{\f@nch@center{#1}}{\f@nch@center{#1}[3]}%
}
\def\f@nch@center#1[#2]#3#4#5{%
  \def\@tempa{#4}\ifx\@tempa\@empty
    \hbox to\linewidth{\color@begingroup{#3}\hfil {#5}\color@endgroup}%
  \else
    \setlength\@tempdima{#1}%
    \setlength{\@tempdimb}{#2\@tempdima}%
    \@tempdimc \@tempdimb \advance\@tempdimc -\@tempdima
    \setlength\@tempskipa{\@tempdimb \@plus 1fil \@minus \@tempdimc}%
    \@tempskipb\@tempskipa
    \def\@tempa{#3}\ifx\@tempa\@empty
      \addtolength\@tempskipa{\z@ \@minus \@tempdima}%
    \fi
    \def\@tempa{#5}\ifx\@tempa\@empty % empty right
      \addtolength\@tempskipb{\z@ \@minus \@tempdima}%
    \fi
    \settowidth{\@tempdimb}{#3}%
    \settowidth{\@tempdimc}{#5}%
    \ifdim\@tempdimb>\@tempdimc
      \advance\@tempdimb -\@tempdimc
      \addtolength\@tempskipb{\@tempdimb \@minus \@tempdimb}%
    \else
      \advance\@tempdimc -\@tempdimb
      \addtolength\@tempskipa{\@tempdimc \@minus \@tempdimc}%
    \fi
    \hbox to\linewidth{\color@begingroup{#3}\hskip \@tempskipa
                      {#4}\hskip \@tempskipb {#5}\color@endgroup}%
  \fi
}
\newcommand{\f@nch@headinit}{}
\newcommand{\fancyheadinit}[1]{%
  \def\f@nch@headinit{#1}%
}
\newcommand{\f@nch@footinit}{}
\newcommand{\fancyfootinit}[1]{%
  \def\f@nch@footinit{#1}%
}
\newcommand{\fancyhfinit}[1]{%
  \def\f@nch@headinit{#1}%
  \def\f@nch@footinit{#1}%
}
\ifdefined\NewMirroredHookPair
  \NewMirroredHookPair{fancyhdr/before}{fancyhdr/after}
  \NewMirroredHookPair{fancyhdr/head/begin}{fancyhdr/head/end}
  \NewMirroredHookPair{fancyhdr/foot/begin}{fancyhdr/foot/end}
\fi
\newlength\f@nch@height
\newlength\f@nch@footalignment
\newif\iff@nch@footalign\f@nch@footalignfalse
\newcommand{\fancyfootalign}[1]{%
  \def\temp@a{#1}%
  \ifx\temp@a\@empty
    \f@nch@footalignfalse
  \else
    \f@nch@footaligntrue
    \setlength\f@nch@footalignment{#1}%
  \fi
}
\newcommand\fancyhdrsettoheight[2]{%
  \expandafter\ifx\csname f@nch@#2\endcsname\fancyhdrsettoheight
    \else\PackageError{fancyhdr}{Unknown parameter #2 in \string\fancyhdrsettoheight}{}\fi
  \setbox\@tempboxa\hbox{{\f@nch@checkfalse\csname @#2\endcsname}}%
  \setlength{#1}\f@nch@height
  \setbox\@tempboxa\box\voidb@x
}
\let\f@nch@oddhead\fancyhdrsettoheight
\let\f@nch@evenhead\fancyhdrsettoheight
\let\f@nch@oddfoot\fancyhdrsettoheight
\let\f@nch@evenfoot\fancyhdrsettoheight
\newcommand\f@nch@vbox[2]{%
  \setbox0\vbox{#2}%
  \global\f@nch@height=\ht0
  \ifdim\ht0>#1\relax
    \iff@nch@check
      \dimen0=#1\advance\dimen0-\ht0
      \PackageWarning{fancyhdr}{%
        \string#1 is too small (\the#1): \MessageBreak
        Make it at least \the\ht0, for example:\MessageBreak
        \string\setlength{\string#1}{\the\ht0}%
        \iff@nch@compatViii .\MessageBreak
        We now make it that large for the rest of the document.\MessageBreak
        This may cause the page layout to be inconsistent, however
        \fi
        \ifx#1\headheight .\MessageBreak
          You might also make \topmargin smaller:\MessageBreak
          \string\addtolength{\string\topmargin}{\the\dimen0}%
        \fi
        \@gobble
      }%
      \iff@nch@compatViii
        \dimen0=#1\relax
        \global#1=\ht0\relax
        \ht0=\dimen0 %
      \else
        \ht0=#1\relax
      \fi
    \else
      \ht0=#1\relax
    \fi
  \fi
  \box0}
\newcommand\f@nch@head[6]{%
  \f@nch@reset
  \ifdefined\UseHook\UseHook{fancyhdr/before}\UseHook{fancyhdr/head/begin}\fi
  \f@nch@headinit\relax
  #1%
  \hbox to\headwidth{%
    \f@nch@vbox\headheight{%
      \f@nch@hfbox{#2}{#3}{#4}{#6}{h}%
      \vskip\headruleskip\relax
      \headrule
    }%
  }%
  #5%
  \ifdefined\UseHook\UseHook{fancyhdr/head/end}\UseHook{fancyhdr/after}\fi
  \f@nch@restorepar
}
\newcommand\f@nch@foot[6]{%
  \f@nch@reset
  \ifdefined\UseHook\UseHook{fancyhdr/before}\UseHook{fancyhdr/foot/begin}\fi
  \f@nch@footinit\relax
  #1%
  \hbox to\headwidth{%
    \f@nch@vbox\footskip{%
      \setbox0=\vbox{\footrule}\unvbox0
      \vskip\footruleskip
      \f@nch@hfbox{#2}{#3}{#4}{#6}{f}%
    \iff@nch@footalign \vskip\f@nch@footalignment \fi
    }%
  }%
  #5%
  \ifdefined\UseHook\UseHook{fancyhdr/foot/end}\UseHook{fancyhdr/after}\fi
  \f@nch@restorepar
}
\newlength\f@nch@widthL
\newlength\f@nch@widthC
\newlength\f@nch@widthR
\newcommand\f@nch@hfbox[5]{%
  \setlength\f@nch@widthL{\csname f@nch@width@#4l#5\endcsname}%
  \setlength\f@nch@widthC{\csname f@nch@width@#4c#5\endcsname}%
  \setlength\f@nch@widthR{\csname f@nch@width@#4r#5\endcsname}%
  \let\@tempa\f@nch@hfbox@center
  \ifdim \dimexpr \f@nch@widthL+\f@nch@widthC+\f@nch@widthR>\headwidth
  \else
    \ifdim \dimexpr \f@nch@widthL+0.5\f@nch@widthC>0.5\headwidth
      \let \@tempa\f@nch@hfbox@fit
    \fi
    \ifdim \dimexpr \f@nch@widthR+0.5\f@nch@widthC>0.5\headwidth
      \let \@tempa\f@nch@hfbox@fit
    \fi
  \fi
  \@tempa{#1}{#2}{#3}#4#5%
}
\newcommand\f@nch@hfbox@center[5]{%
  \hbox to \headwidth{%
    \rlap{\f@nch@parbox{#1}\f@nch@widthL{#4}l{#5}}%
    \hfill
    \f@nch@parbox{#2}\f@nch@widthC{#4}c{#5}%
    \hfill
    \llap{\f@nch@parbox{#3}\f@nch@widthR{#4}r{#5}}%
  }%
}
\newcommand\f@nch@hfbox@fit[5]{%
  \hbox to \headwidth{%
    \f@nch@parbox{#1}\f@nch@widthL{#4}l{#5}%
    \hfill
    \f@nch@parbox{#2}\f@nch@widthC{#4}c{#5}%
    \hfill
    \f@nch@parbox{#3}\f@nch@widthR{#4}r{#5}%
  }%
}%
\newcommand\f@nch@parbox[5]{%
  \expandafter\expandafter\expandafter\f@nch@parbox@align
                     \csname f@nch@align@#3#4#5\endcsname
  \parbox[\f@nch@align@@v]{#2}%
    {%
      \f@nch@align@@pre
      \f@nch@align@@h\leavevmode\ignorespaces#1%
      \f@nch@align@@post
    }%
}
\newcommand\f@nch@parbox@align[2]{%
  \def\f@nch@align@@pre{}%
  \def\f@nch@align@@post{}%
  \csname f@nch@parbox@align@v#1\endcsname
  \csname f@nch@parbox@align@h#2\endcsname
}
\def\f@nch@parbox@align@vT{\def\f@nch@align@@v{t}\def\f@nch@align@@pre{\vspace{0pt}}}
\def\f@nch@parbox@align@vt{\def\f@nch@align@@v{t}}
\def\f@nch@parbox@align@vc{\def\f@nch@align@@v{c}}
\def\f@nch@parbox@align@vb{\def\f@nch@align@@v{b}}
\def\f@nch@parbox@align@vB{\def\f@nch@align@@v{b}\def\f@nch@align@@post{\vspace{0pt}}}
\def\f@nch@parbox@align@hl{\def\f@nch@align@@h{\raggedright}}
\def\f@nch@parbox@align@hc{\def\f@nch@align@@h{\centering}}
\def\f@nch@parbox@align@hr{\def\f@nch@align@@h{\raggedleft}}
\def\f@nch@parbox@align@hj{\def\f@nch@align@@h{}}
\@ifundefined{@chapapp}{\let\@chapapp\chaptername}{}%
\def\f@nch@initialise{%
  \@ifundefined{chapter}%
   {\def\sectionmark##1{\markboth{\MakeUppercase{\ifnum \c@secnumdepth>\z@
          \thesection\hskip 1em\relax
        \fi ##1}}{}}%
    \def\subsectionmark##1{\markright {\ifnum \c@secnumdepth >\@ne
      \thesubsection\hskip 1em\relax \fi ##1}}}%
   {\def\chaptermark##1{\markboth {\MakeUppercase{\ifnum
        \c@secnumdepth>\m@ne \@chapapp\ \thechapter. \ \fi ##1}}{}}%
    \def\sectionmark##1{\markright{\MakeUppercase{\ifnum \c@secnumdepth >\z@
        \thesection. \ \fi ##1}}}%
   }%
  \def\headrule{{\if@fancyplain\let\headrulewidth\plainheadrulewidth\fi
      \hrule\@height\headrulewidth\@width\headwidth
      \vskip-\headrulewidth}}%
  \def\footrule{{\if@fancyplain\let\footrulewidth\plainfootrulewidth\fi
      \hrule\@width\headwidth\@height\footrulewidth}}%
  \def\headrulewidth{0.4pt}%
  \def\footrulewidth{0pt}%
  \def\headruleskip{0pt}%
  \def\footruleskip{0.3\normalbaselineskip}%
  \fancyhf{}%
  \if@twoside
    \fancyhead[el,or]{\fancyplain{}{\slshape\rightmark}}%
    \fancyhead[er,ol]{\fancyplain{}{\slshape\leftmark}}%
  \else
    \fancyhead[l]{\fancyplain{}{\slshape\rightmark}}%
    \fancyhead[r]{\fancyplain{}{\slshape\leftmark}}%
  \fi
  \fancyfoot[c]{\rmfamily\thepage}% page number
}
\f@nch@initialise
\def\ps@f@nch@fancyproto{%
  \ifdim\headwidth<0sp
    \global\advance\headwidth123456789sp\global\advance\headwidth\textwidth
  \fi
  \gdef\ps@f@nch@fancyproto{\@fancyplainfalse\ps@f@nch@fancycore}%
  \@fancyplainfalse\ps@f@nch@fancycore
}%
\@namedef{f@nch@ps@f@nch@fancyproto-is-fancyhdr}{}
\def\ps@fancy{\ps@f@nch@fancyproto}
\@namedef{f@nch@ps@fancy-is-fancyhdr}{}
\def\ps@fancyplain{\ps@f@nch@fancyproto \let\ps@plain\ps@plain@fancy}
\def\ps@plain@fancy{\@fancyplaintrue\ps@f@nch@fancycore}
\let\f@nch@ps@empty\ps@empty
\def\ps@f@nch@fancycore{%
  \f@nch@ps@empty
  \def\@mkboth{\protect\markboth}%
  \def\f@nch@oddhead{\f@nch@head\f@nch@Oolh\f@nch@olh\f@nch@och\f@nch@orh\f@nch@Oorh{o}}%
  \def\@oddhead{%
    \iff@nch@twoside
      \ifodd\c@page
        \f@nch@oddhead
      \else
        \@evenhead
      \fi
    \else
      \f@nch@oddhead
    \fi
  }
  \def\f@nch@oddfoot{\f@nch@foot\f@nch@Oolf\f@nch@olf\f@nch@ocf\f@nch@orf\f@nch@Oorf{o}}%
  \def\@oddfoot{%
    \iff@nch@twoside
      \ifodd\c@page
        \f@nch@oddfoot
      \else
        \@evenfoot
      \fi
    \else
      \f@nch@oddfoot
    \fi
  }
  \def\@evenhead{\f@nch@head\f@nch@Oelh\f@nch@elh\f@nch@ech\f@nch@erh\f@nch@Oerh{e}}%
  \def\@evenfoot{\f@nch@foot\f@nch@Oelf\f@nch@elf\f@nch@ecf\f@nch@erf\f@nch@Oerf{e}}%
}
\def\f@nch@Oolh{\if@reversemargin\hss\else\relax\fi}
\def\f@nch@Oorh{\if@reversemargin\relax\else\hss\fi}
\let\f@nch@Oelh\f@nch@Oorh
\let\f@nch@Oerh\f@nch@Oolh
\let\f@nch@Oolf\f@nch@Oolh
\let\f@nch@Oorf\f@nch@Oorh
\let\f@nch@Oelf\f@nch@Oelh
\let\f@nch@Oerf\f@nch@Oerh
\def\f@nch@offsolh{\headwidth=\textwidth\advance\headwidth\f@nch@offset@olh
                   \advance\headwidth\f@nch@offset@orh\hskip-\f@nch@offset@olh}
\def\f@nch@offselh{\headwidth=\textwidth\advance\headwidth\f@nch@offset@elh
                   \advance\headwidth\f@nch@offset@erh\hskip-\f@nch@offset@elh}
\def\f@nch@offsolf{\headwidth=\textwidth\advance\headwidth\f@nch@offset@olf
                   \advance\headwidth\f@nch@offset@orf\hskip-\f@nch@offset@olf}
\def\f@nch@offself{\headwidth=\textwidth\advance\headwidth\f@nch@offset@elf
                   \advance\headwidth\f@nch@offset@erf\hskip-\f@nch@offset@elf}
\def\f@nch@setoffs{%
  \f@nch@gbl\let\headwidth\f@nch@headwidth
  \f@nch@gbl\def\f@nch@Oolh{\f@nch@offsolh}%
  \f@nch@gbl\def\f@nch@Oelh{\f@nch@offselh}%
  \f@nch@gbl\def\f@nch@Oorh{\hss}%
  \f@nch@gbl\def\f@nch@Oerh{\hss}%
  \f@nch@gbl\def\f@nch@Oolf{\f@nch@offsolf}%
  \f@nch@gbl\def\f@nch@Oelf{\f@nch@offself}%
  \f@nch@gbl\def\f@nch@Oorf{\hss}%
  \f@nch@gbl\def\f@nch@Oerf{\hss}%
}
\newif\iff@nch@footnote
\AtBeginDocument{%
  \let\latex@makecol\@makecol
  \def\@makecol{\ifvoid\footins\f@nch@footnotefalse\else\f@nch@footnotetrue\fi
    \let\f@nch@topfloat\@toplist\let\f@nch@botfloat\@botlist\latex@makecol}%
}
\newcommand\iftopfloat[2]{\ifx\f@nch@topfloat\@empty #2\else #1\fi}%
\newcommand\ifbotfloat[2]{\ifx\f@nch@botfloat\@empty #2\else #1\fi}%
\newcommand\iffloatpage[2]{\if@fcolmade #1\else #2\fi}%
\newcommand\iffootnote[2]{\iff@nch@footnote #1\else #2\fi}%
\ifx\@temptokenb\undefined \csname newtoks\endcsname\@temptokenb\fi
\newif\iff@nch@pagestyle@star
\newcommand\fancypagestyle{%
  \@ifstar{\f@nch@pagestyle@startrue\f@nch@pagestyle}%
          {\f@nch@pagestyle@starfalse\f@nch@pagestyle}%
}
\newcommand\f@nch@pagestyle[1]{%
  \@ifnextchar[{\f@nch@@pagestyle{#1}}{\f@nch@@pagestyle{#1}[f@nch@fancyproto]}%
}
\long\def\f@nch@@pagestyle#1[#2]#3{%
  \@ifundefined{ps@#2}{%
    \PackageError{fancyhdr}{\string\fancypagestyle: Unknown base page style `#2'}{}%
  }{%
    \@ifundefined{f@nch@ps@#2-is-fancyhdr}{%
      \PackageError{fancyhdr}{\string\fancypagestyle: Base page style `#2' is not fancyhdr-based}{}%
    }%
    {%
      \f@nch@pagestyle@setup
      \def\temp@b{\@namedef{ps@#1}}%
      \expandafter\temp@b\expandafter{\the\@temptokenb
          \let\f@nch@gbl\relax\@nameuse{ps@#2}#3\relax}%
      \@namedef{f@nch@ps@#1-is-fancyhdr}{}%
    }%
  }%
}
\newcommand\f@nch@pagestyle@setup{%
  \iff@nch@pagestyle@star
    \iff@nch@check\@temptokenb={\f@nch@checktrue}\else\@temptokenb={\f@nch@checkfalse}\fi
    \@tfor\temp@a:=
      \f@nch@olh\f@nch@och\f@nch@orh\f@nch@elh\f@nch@ech\f@nch@erh
      \f@nch@olf\f@nch@ocf\f@nch@orf\f@nch@elf\f@nch@ecf\f@nch@erf
      \f@nch@width@elh\f@nch@width@ech\f@nch@width@erh\f@nch@width@olh
      \f@nch@width@och\f@nch@width@orh\f@nch@width@elf\f@nch@width@ecf
      \f@nch@width@erf\f@nch@width@olf\f@nch@width@ocf\f@nch@width@orf
      \f@nch@align@elh\f@nch@align@ech\f@nch@align@erh\f@nch@align@olh
      \f@nch@align@och\f@nch@align@orh\f@nch@align@elf\f@nch@align@ecf
      \f@nch@align@erf\f@nch@align@olf\f@nch@align@ocf\f@nch@align@orf
      \f@nch@Oolh\f@nch@Oorh\f@nch@Oelh\f@nch@Oerh
      \f@nch@Oolf\f@nch@Oorf\f@nch@Oelf\f@nch@Oerf
      \f@nch@headinit\f@nch@footinit
      \headrule\headrulewidth\footrule\footrulewidth
    \do {%
      \toks@=\expandafter\expandafter\expandafter{\temp@a}%
      \toks@=\expandafter\expandafter\expandafter{%
        \expandafter\expandafter\expandafter\def
        \expandafter\expandafter\temp@a\expandafter{\the\toks@}}%
      \edef\temp@b{\@temptokenb={\the\@temptokenb\the\toks@}}%
      \temp@b
    }%
    \@tfor\temp@a:=
      \f@nch@offset@olh\f@nch@offset@orh\f@nch@offset@elh\f@nch@offset@erh
      \f@nch@offset@olf\f@nch@offset@orf\f@nch@offset@elf\f@nch@offset@erf
    \do {%
      \toks@=\expandafter\expandafter\expandafter{\expandafter\the\temp@a}%
      \toks@=\expandafter\expandafter\expandafter{%
        \expandafter\expandafter\expandafter\setlength
        \expandafter\expandafter\temp@a\expandafter{\the\toks@}}%
      \edef\temp@b{\@temptokenb={\the\@temptokenb\the\toks@}}%
      \temp@b
    }%
  \else
    \@temptokenb={}%
  \fi
}
\newcommand\fancypagestyleassign[2]{%
  \@ifundefined{ps@#2}{%
    \PackageError{fancyhdr}{\string\fancypagestyleassign: Unknown page style `#2'}{}%
    }{%
     \expandafter\let
       \csname ps@#1\expandafter\endcsname
       \csname ps@#2\endcsname
     \@ifundefined{f@nch@ps@#2-is-fancyhdr}{%
       \expandafter\let\csname f@nch@ps@#1-is-fancyhdr\endcsname\@undefined
     }{%
       \@namedef{f@nch@ps@#1-is-fancyhdr}{}%
     }%
   }%
}
\fancypagestyle*{fancydefault}{\f@nch@initialise}
\def\f@nchdrbox@topstrut{\vrule height\ht\strutbox width\z@}
\def\f@nchdrbox@botstrut{\vrule depth\dp\strutbox width\z@}
\def\f@nchdrbox@nostrut{\noalign{\vspace{0pt}}\let\f@nchdrbox@@crstrut\f@nchdrbox@botstrut}
\NewDocumentCommand{\fancyhdrbox}{ O{cl} o m }{%
\begingroup
  \let\f@nchdrbox@@pre\f@nchdrbox@topstrut
  \let\f@nchdrbox@@postx\f@nchdrbox@botstrut
  \let\f@nchdrbox@@posty\relax
  \let\f@nchdrbox@@crstrut\strut
  \IfNoValueTF{#2}%
    {\let\f@nchdrbox@@halignto\@empty}%
    {\setlength\@tempdima{#2}%
      \def\f@nchdrbox@@halignto{to\@tempdima}}%
  \def\@tempa{#1}%
  \ifx\@tempa\@empty
    \f@nchdrbox@align cl\@nil{#3}%
  \else
    \f@nchdrbox@align #1\@nil{#3}%
  \fi
\endgroup
}
\protected\def\f@nchdrbox@cr{%
  {\ifnum0=`}\fi\@ifstar\@f@nchdrbox@xcr\@f@nchdrbox@xcr}

\def\@f@nchdrbox@xcr{%
  \unskip\f@nchdrbox@@crstrut
  \@ifnextchar[\@f@nchdrbox@argc{\ifnum0=`{\fi}\cr}%
}

\def\@f@nchdrbox@argc[#1]{%
  \ifnum0=`{\fi}%
    \ifdim #1>\z@
      \unskip\@f@nchdrbox@xargc{#1}%
    \else
      \@f@nchdrbox@yargc{#1}%
    \fi}

\def\@f@nchdrbox@xargc#1{\@tempdima #1\advance\@tempdima \dp \strutbox
   \vrule \@height\z@ \@depth\@tempdima \@width\z@ \cr}

\def\@f@nchdrbox@yargc#1{\cr\noalign{\setlength\@tempdima{#1}\vskip\@tempdima}}
\def\f@nchdrbox@T{\let\f@nchdrbox@@pre\f@nchdrbox@nostrut
                  \f@nchdrbox@t}
\def\f@nchdrbox@t{\def\f@nchdrbox@@v{t}\def\f@nchdrbox@@h{l}}
\def\f@nchdrbox@c{\def\f@nchdrbox@@v{c}\def\f@nchdrbox@@h{c}}
\def\f@nchdrbox@b{\def\f@nchdrbox@@v{b}\def\f@nchdrbox@@h{l}}
\def\f@nchdrbox@B{\let\f@nchdrbox@@postx\relax
                  \def\f@nchdrbox@@posty{\vspace{0pt}}%
                  \f@nchdrbox@b}
\long\def\f@nchdrbox@align#1#2\@nil#3{%
  \f@nch@ifin{#1}{TtcbB}{%
    \@nameuse{f@nchdrbox@#1}%
    \def\@tempa{#2}%
    \ifx\@tempa\@empty\else \def\f@nchdrbox@@h{#2}\fi
  }%
  {\def\f@nchdrbox@@v{c}\def\f@nchdrbox@@h{#1}}%
  \expandafter\f@nch@ifin\expandafter{\f@nchdrbox@@h}{lcr}{}%
  {\PackageError{fancyhdr}{\string\fancyhdrbox: Illegal char `\f@nchdrbox@@h'\MessageBreak
                            in alignment argument}{}}%
  \let\\\f@nchdrbox@cr
  \setbox0=\if \f@nchdrbox@@v t\vtop
  \else \vbox
  \fi
  {%
     \ialign \f@nchdrbox@@halignto
     \bgroup \relax
     {\if \f@nchdrbox@@h l\hskip 1sp\else \hfil \fi
       \ignorespaces ##\unskip
       \if\f@nchdrbox@@h r\else \hfil \fi
     }%
     \tabskip\z@skip \cr
     \f@nchdrbox@@pre
     #3\unskip \f@nchdrbox@@postx
     \crcr
     \egroup
     \f@nchdrbox@@posty
  }%
  \if\f@nchdrbox@@v c\@tempdima=\ht0\advance\@tempdima\dp0%
    \ht0=0.5\@tempdima\dp0=0.5\@tempdima\fi
  \leavevmode \box0
}
\@ifclassloaded{newlfm}
{
  \let\ps@@empty\f@nch@ps@empty
  \AtBeginDocument{%
    \renewcommand{\@zfancyhead}[5]{\relax\hbox to\headwidth{\f@nch@reset
      \@zfancyvbox\headheight{\hbox
        {\rlap{\parbox[b]{\headwidth}{\raggedright\f@nch@olh}}\hfill
          \parbox[b]{\headwidth}{\centering\f@nch@olh}\hfill
          \llap{\parbox[b]{\headwidth}{\raggedleft\f@nch@orh}}}%
        \zheadrule}}\relax}%
  }
}
{}
\endinput
%%
%% End of file `fancyhdr.sty'.