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+% +--------------------------------------------------+
+% | Typeset titlesec.tex to get the documentation. |
+% +--------------------------------------------------+
+%
+% Copyright (c) 1998-2005 by Javier Bezos.
+% All Rights Reserved.
+%
+% This file is part of the titlesec distribution release 2.6
+% -----------------------------------------------------------
+%
+% 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 any later version.
+
+% History of v1.0 (actually not 1.0)
+% ~~~~~~~~~~~~~~~
+% 99/11/03: Split from titlesec.sty
+% 99/11/03: Changed \setmarks, \ttl@sethead, \ttl@setfoot to follow
+% the new scheme
+% 99/11/03: Removed the redefinition of \markboth. The arguments are
+% expanded on the fly by the corresponding \...mark.
+% 00/01/06: Added the \newtitlemark device.
+% 00/01/19: Rejected the idea of a separate package (for the time
+% being). Now it's ttlps.def.
+% 00/01/20: Starred versions of \widenhead, \sethead, \setfoot.
+% 00/01/23: Added \ifthe..., \iftitle, etc.
+% 00/02/05: Modified \ifthe... mechanism
+% 00/02/25: Fixed a bug which made enter in an endless loop.
+% Now \ttl@marks is just \relax. The new scheme made
+% compatible with babel. (2.3.1)
+% 00/03/01: Fixed a bug in the previous bug fix. (2.3.2)
+% 00/03/08: Removed the code for AMS and babel. A general procedure
+% to catch the changes of \markboth is introduced, with
+% \ttl@enccode and \ttl@running. (2.3.3)
+% 00/05/05: \setmarks may be used outside of \newpagestyle, with
+% the help of \ttl@setmarks and \ttl@marksset (2.3.4)
+% 00/05/25: Tests for \ttl@toclabel moved to the redefinition of
+% \secdef in titlesec. (2.3.5)
+% 00/06/07: Added the first attempt for pagestyles with floats.
+% With slight changes, it will become the final form
+% for that. (2.3.5)
+% 00/06/14: The default \ifthe... are now defined with \ttl@setifthe
+% so that they are robust from the very beginning. (2.3.5)
+% 01/01/21: Replaced some \defs by \newcommand
+%
+% As before, all marks has two parts but now they don't refer to left or
+% right pages at all. There are some issues related to top marks which
+% are explained by Knuth in \textit{The \TeX book}, pp. 259f, as well
+% as an uncompatibility between them and \LaTeX{} floats. To overcome
+% both limitations, in the \textsf{titlesec} page styles, the second
+% part in |\cs{firstmark}| is a \emph{fixed} top mark and the first one
+% the actual first mark; the right way to get the bot mark is from the
+% second part. Marks are stored at each section and used before and
+% after the title (straight class); the first part contains the values
+% of current title, but the second one contains the previolusly stored
+% values in the mark before the title, and the current values in the
+% mark after.
+
+\ProvidesFile{ttlps.def}[2005/01/22]
+
+%
+% Page Styles
+% ~~~~~~~~~~~
+
+\ifx\ttl@compatps\@undefined\else
+ \PackageWarningNoLine{titlesec}
+ {You are using an old interface for page styles\MessageBreak
+ You could proceed but don't complain if you run\MessageBreak
+ into errors}
+\fi
+
+\ttl@pstrue
+
+\let\parttitle\@empty
+\let\chaptertitle\@empty
+\let\sectiontitle\@empty
+\let\subsectiontitle\@empty
+\let\subsubsectiontitle\@empty
+\let\paragraphtitle\@empty
+\let\subparagraphtitle\@empty
+
+\newcommand\iftitle[1]{%
+ \expandafter\ifx\csname #1title\endcsname\@empty
+ \expandafter\@secondoftwo
+ \else
+ \expandafter\@firstoftwo
+ \fi}
+
+\newcommand\newtitlemark{%
+ \@ifstar{\@tempswafalse\ttl@newmk@i}%
+ {\@tempswatrue\ttl@newmk@i}}
+
+\def\ttl@newmk@i#1{%
+ \edef\ttl@a{{\expandafter\@gobble\string#1}}%
+ \expandafter\ttl@newmk@ii\ttl@a}
+
+\def\ttl@newmk@ii#1{%
+ \if@tempswa
+ \expandafter\def\expandafter\ttl@moremarks\expandafter{%
+ \ttl@moremarks
+ \protect\@namedef{#1}{\@nameuse{#1}}}%
+ \else
+ \expandafter\def\expandafter\ttl@moremarks\expandafter{%
+ \ttl@moremarks
+ \protect\@nameuse{#1}=\the\@nameuse{#1}\relax}%
+ \fi}
+
+\def\ttl@prevmarks{\ttl@marks}
+\let\ttl@marks\relax
+
+\let\ttl@moremarks\@empty
+
+% The following command sets the ifthe... commands to
+% be used in heads. When the call is from inside a sectioning
+% command, toclabel is either true (in most of cases) or false
+% (a chapter in the front matter, for example). Otherwise (an
+% explicit \...mark) is false
+
+\def\ttl@setifthe#1{%
+ \expandafter\protected@edef\csname ifthe#1\endcsname{%
+ \ifttl@toclabel
+ \protect\@firstoftwo
+ \else
+ \protect\@secondoftwo
+ \fi}}
+
+% At this point \ttl@toclabel is always false
+
+\ttl@setifthe{part}
+\ttl@setifthe{chapter}
+\ttl@setifthe{section}
+\ttl@setifthe{subsection}
+\ttl@setifthe{subsubsection}
+\ttl@setifthe{paragraph}
+\ttl@setifthe{subparagraph}
+
+\newtitlemark{\ttl@running}
+\let\ttl@enccode\relax
+\def\ttl@running{\ttl@enccode}
+
+\def\ttl@markboth#1{%
+ \begingroup
+ \let\protect\@unexpandable@protect
+ \let\@mkboth\@gobbletwo
+ \let\ttl@enccode\relax
+ \let\label\relax
+ \let\index\relax
+ \let\glossary\relax
+ \let\ttl@c\mark
+ \def\mark##1{\xdef\ttl@running{\expandafter\@gobble##1}}%
+ \markboth{}{\ttl@enccode}%
+ \expandafter\let\csname#1mark\endcsname\@gobble
+ \xdef\ttl@marks{\ttl@marks}%
+ \gdef\@themark{{\ttl@marks}{\ttl@prevmarks}}%
+ \ttl@c{\@themark}%
+ \if@nobreak\ifvmode\nobreak\fi\fi
+ \endgroup}
+
+\newcommand\setmarks[2]{\def\ttl@marksset{{#1}{#2}}}
+
+\def\ttl@setmarks#1#2{%
+ \expandafter\def\csname#1mark\endcsname##1{%
+ \expandafter\gdef\csname#1title\endcsname{##1}%
+ \ttl@setifthe{#1}%
+ \def\ttl@marks{%
+ \protect\@namedef{#1title}{##1}%
+ \protect\@namedef{#2title}{}%
+ \protect\@namedef{the#1}{\@nameuse{the#1}}%
+ \protect\@namedef{the#2}{}%
+ \protect\@namedef{ifthe#1}{\@nameuse{ifthe#1}}%
+ \protect\@namedef{ifthe#2}{\protect\@secondoftwo}%
+ \ttl@moremarks}%
+ \ttl@markboth{#1}}%
+ \expandafter\def\csname#2mark\endcsname##1{%
+ \expandafter\gdef\csname#2title\endcsname{##1}%
+ \ttl@setifthe{#2}%
+ \def\ttl@marks{%
+ \protect\@namedef{#1title}{\@nameuse{#1title}}%
+ \protect\@namedef{#2title}{##1}%
+ \protect\@namedef{the#1}{\@nameuse{the#1}}%
+ \protect\@namedef{the#2}{\@nameuse{the#2}}%
+ \protect\@namedef{ifthe#1}{\@nameuse{ifthe#1}}%
+ \protect\@namedef{ifthe#2}{\@nameuse{ifthe#2}}%
+ \ttl@moremarks}%
+ \ttl@markboth{#1}}}%
+
+\newcommand\headrule{\setheadrule{.4\p@}}
+\newcommand\footrule{\setfootrule{.4\p@}}
+
+\newcommand\setheadrule[1]{%
+ \ifdim#1=\z@
+ \let\makeheadrule\@empty
+ \else
+ \def\makeheadrule{\rule[-.3\baselineskip]{\linewidth}{#1}}%
+ \fi}
+\newcommand\setfootrule[1]{%
+ \ifdim#1=\z@
+ \let\makefootrule\@empty
+ \else
+ \def\makefootrule{\rule[.7\baselineskip]{\linewidth}{#1}}%
+ \fi}
+
+\renewcommand\newpagestyle[1]{%
+ \begingroup
+ \catcode`\^^M=9
+ \@ifnextchar[%
+ {\ttl@pagestyle\newcommand{#1}}%
+ {\ttl@pagestyle\newcommand{#1}[]}}
+
+\renewcommand\renewpagestyle[1]{%
+ \begingroup
+ \catcode`\^^M=9
+ \@ifnextchar[%
+ {\ttl@pagestyle\renewcommand{#1}}%
+ {\ttl@pagestyle\renewcommand{#1}[]}}
+
+\def\ttl@pagestyle#1#2[#3]#4{%
+ \endgroup
+ \expandafter#1\csname ps@#2\endcsname{%
+ \ttl@defaultps
+ \def\ttl@headfmt{#3}%
+ #4%
+ \def\setmarks####1####2{\def\ttl@marksset{{####1}{####2}}}}}
+
+\def\ttl@userunning#1#2{\csname ttlr@#1#2\endcsname}
+
+\def\ttl@defaultps{%
+ \let\makeheadrule\@empty
+ \let\makefootrule\@empty
+ \def\@mkboth{\ttl@savemark\@gobbletwo}%
+ \def\@oddfoot{\ttl@userunning of}%
+ \def\@evenfoot{\ttl@userunning ef}%
+ \def\@oddhead{\ttl@userunning oh}%
+ \def\@evenhead{\ttl@userunning eh}%
+ \def\ttlr@of{\ttl@makefoot\@empty\@@\ttl@hiol\ttl@hior}%
+ \def\ttlr@ef{\ttl@makefoot\@empty\@@\ttl@hiel\ttl@hier}%
+ \def\ttlr@oh{\ttl@makehead\@empty\@@\ttl@hiol\ttl@hior}%
+ \def\ttlr@eh{\ttl@makehead\@empty\@@\ttl@hiel\ttl@hier}%
+ \let\ttlr@of@b\relax \let\ttlr@of@p\relax
+ \let\ttlr@ef@b\relax \let\ttlr@ef@p\relax
+ \let\ttlr@oh@t\relax \let\ttlr@oh@p\relax
+ \let\ttlr@eh@t\relax \let\ttlr@eh@p\relax
+ \let\setmarks\ttl@setmarks
+ \expandafter\setmarks\ttl@marksset}
+
+\@ifundefined{chapter}%
+ {\setmarks{section}{subsection}}%
+ {\setmarks{chapter}{section}}
+
+\newcommand\usepage{\protect\thepage}
+
+\newcommand\toptitlemarks {\expandafter\@secondoftwo\firstmark{}{}{}}
+\def\firsttitlemarks{%
+ \toks@\expandafter\expandafter\expandafter{%
+ \expandafter\@secondoftwo \firstmark{}{}{}}%
+ \@temptokena\expandafter\expandafter\expandafter{%
+ \expandafter\@secondoftwo \botmark{}{}{}}%
+ \edef\ttl@a{\the\toks@}%
+ \edef\ttl@b{\the\@temptokena}%
+ \ifx\ttl@a\ttl@b
+ \expandafter\@secondoftwo\firstmark{}{}{}%
+ \else
+ \expandafter\@firstoftwo \firstmark{}{}{}%
+ \fi}
+\newcommand\bottitlemarks {\expandafter\@secondoftwo\botmark{}{}{}}
+\newcommand\nexttoptitlemarks{\expandafter\@firstoftwo \botmark{}{}{}}
+\newcommand\outertitlemarks{%
+ \if@twoside
+ \ifodd\c@page\relax
+ \bottitlemarks
+ \else
+ \toptitlemarks
+ \fi
+ \else
+ \toptitlemarks
+ \fi}
+\newcommand\innertitlemarks{%
+ \if@twoside
+ \ifodd\c@page\relax
+ \firsttitlemarks
+ \else
+ \bottitlemarks
+ \fi
+ \else
+ \bottitlemarks
+ \fi}
+
+
+\def\ttl@duplthreeargs#1#2#3#4{#1[#2][#3][#4]{#2}{#3}{#4}}
+\def\ttl@dupltwoargs#1#2#3{#1[#2][#3]{#2}{#3}}
+\def\ttl@duplthreeargsrev#1#2#3#4{#1[#4][#3][#2]{#2}{#3}{#4}}
+\def\ttl@dupltwoargsrev#1#2#3{#1[#3][#2]{#2}{#3}}
+
+\def\ttl@setany#1{%
+ \@ifstar{\ttl@duplthreeargsrev#1}%
+ {\@ifnextchar[{#1}{\ttl@duplthreeargs#1}}}
+
+\newcommand\setfoot{\ttl@setany\ttl@setfoot}
+\newcommand\sethead{\ttl@setany\ttl@sethead}
+
+\def\ttl@setfoot[#1][#2][#3]#4#5#6{%
+ \def\ttlr@ef{\ttl@makefoot{#1}{#2}{#3}\@@\ttl@hiel\ttl@hier}%
+ \def\ttlr@of{\ttl@makefoot{#4}{#5}{#6}\@@\ttl@hiol\ttl@hior}}
+
+\def\ttl@sethead[#1][#2][#3]#4#5#6{%
+ \def\ttlr@eh{\ttl@makehead{#1}{#2}{#3}\@@\ttl@hiel\ttl@hier}%
+ \def\ttlr@oh{\ttl@makehead{#4}{#5}{#6}\@@\ttl@hiol\ttl@hior}}
+
+\def\ttl@headinline#1#2#3{%
+ \ttl@headfmt
+ \def\ttl@a{#1#3}\def\ttl@b{#2}%
+ \ifx\ttl@a\@empty
+ \hfil{#2}\hfil
+ \else\ifx\ttl@b\@empty
+ {#1}\hfil{#3}%
+ \else
+ \sbox\z@ {#1}%
+ \sbox\tw@{#3}%
+ \copy\z@
+ \ifdim\wd\z@<\wd\tw@
+ \kern-\wd\z@\kern\wd\tw@
+ \fi
+ \hfil{#2}\hfil
+ \ifdim\wd\z@>\wd\tw@
+ \kern-\wd\tw@\kern\wd\z@
+ \fi
+ \box\tw@
+ \fi\fi}
+
+\def\ttl@makeboth#1#2#3#4{%
+ \ttl@calcneg\hspace{#3}%
+ \normalsize
+ \linewidth\textwidth
+ \addtolength\linewidth{#3}%
+ \addtolength\linewidth{#4}%
+ \ifx#2\@empty\else
+ \setbox\z@\hb@xt@\linewidth{%
+ \color@begingroup
+ #2%
+ \color@endgroup}%
+ \wd\z@\z@
+ \ht\z@\z@
+ \dp\z@\z@
+ \box\z@
+ \fi
+ \ttl@titlemarks % Must precede the format. Defines \ttl@running
+ \def\ttl@enccode{\ttl@headinline#1{}{}{}}%which contains ttl@enccode
+ \ttl@running
+ \ttl@calcneg\hspace{#4}}%
+
+\def\ttl@makehead#1\@@{\ttl@makeboth{#1}\makeheadrule}
+\def\ttl@makefoot#1\@@{\ttl@makeboth{#1}\makefootrule}
+
+\renewcommand\widenhead{%
+ \@ifstar{\ttl@dupltwoargsrev\ttl@widenhd}%
+ {\@ifnextchar[{\ttl@widenhd}{\ttl@dupltwoargs\ttl@widenhd}}}
+
+\def\ttl@widenhd[#1][#2]#3#4{%
+ \def\ttl@hiel{#1}\def\ttl@hier{#2}%
+ \def\ttl@hiol{#3}\def\ttl@hior{#4}}
+
+\let\setheadindent\widenhead
+
+\def\ttl@hiel{\z@}\def\ttl@hier{\z@}
+\def\ttl@hiol{\z@}\def\ttl@hior{\z@}
+
+% Pagestyles with floats. There macros are defined only with the
+% psfloats package option.
+
+\@ifundefined{ttl@replace}{\endinput}{}
+
+% User interface
+
+\newcommand\setfloatfoot{%
+ \let\ttl@c\@empty % <- current float, empty if general
+ \ttl@setany\ttl@setftfoot}
+
+\newcommand\setfloathead{%
+ \let\ttl@c\@empty % <- current float, empty if general
+ \ttl@setany\ttl@setfthead}
+
+\def\ttl@setftfoot[#1][#2][#3]#4#5#6#7{%
+ \@ifnextchar[{\ttl@setftfoot@i{#1}{#2}{#3}{#4}{#5}{#6}{#7}}%
+ {\ttl@setftfoot@i{#1}{#2}{#3}{#4}{#5}{#6}{#7}[bp]}}
+
+\def\ttl@setfthead[#1][#2][#3]#4#5#6#7{%
+ \@ifnextchar[{\ttl@setfthead@i{#1}{#2}{#3}{#4}{#5}{#6}{#7}}%
+ {\ttl@setfthead@i{#1}{#2}{#3}{#4}{#5}{#6}{#7}[tp]}}
+
+\def\ttl@setftfoot@i#1#2#3#4#5#6#7[#8]{%
+ \@tfor\ttl@b:=#8\do{%
+ \@namedef{ttlr@ef@\ttl@b\ttl@c}%
+ {#7\ttl@makefoot{#1}{#2}{#3}\@@\ttl@hiel\ttl@hier}%
+ \@namedef{ttlr@of@\ttl@b\ttl@c}%
+ {#7\ttl@makefoot{#4}{#5}{#6}\@@\ttl@hiol\ttl@hior}}}
+
+\def\ttl@setfthead@i#1#2#3#4#5#6#7[#8]{%
+ \@tfor\ttl@b:=#8\do{%
+ \@namedef{ttlr@eh@\ttl@b\ttl@c}%
+ {#7\ttl@makehead{#1}{#2}{#3}\@@\ttl@hiel\ttl@hier}%
+ \@namedef{ttlr@oh@\ttl@b\ttl@c}%
+ {#7\ttl@makehead{#4}{#5}{#6}\@@\ttl@hiol\ttl@hior}}}
+
+\newcommand\nextfloathead{%
+ \ttl@nextfree % returns ttl@c with the next float
+ \ttl@setany\ttl@setfthead}
+
+\newcommand\nextfloatfoot{%
+ \ttl@nextfree % returns ttl@c with the next float
+ \ttl@setany\ttl@setftfoot}
+
+% Compat mode with floatps
+
+\ifx\ttl@replace\space
+
+ \let\ttl@setnewfoot\ttl@setftfoot
+ \let\ttl@setnewhead\ttl@setfthead
+
+ \def\ttl@setftfoot[#1][#2][#3]#4#5#6{%
+ \ttl@setnewfoot[#1][#2][#3]{#4}{#5}{#6}{}}
+ \def\ttl@setfthead[#1][#2][#3]#4#5#6{%
+ \ttl@setnewhead[#1][#2][#3]{#4}{#5}{#6}{}}
+
+\fi
+
+% The simple default value of \ttl@userunning is
+% replaced by one more elaborated
+
+\def\ttl@userunning#1#2{%
+ \if@fcolmade % From a post by D. Arseneau to comp.text.tex
+ \def\@elt##1{\edef\ttl@pageft{\string##1}}%
+ \@flsucceed
+ \let\@elt\relax
+ \if#2h%
+ \ttl@replace #1hp\ttl@pageft
+ \else
+ \ttl@replace #1fp\ttl@pageft
+ \ttl@killftps\ttl@pageft
+ \fi
+ \else\if#2h%
+ \ifx\ttl@topft\@empty\else
+ \ttl@replace #1ht\ttl@topft
+ \fi
+ \else
+ \ifx\ttl@botft\@empty\else
+ \ttl@replace #1fb\ttl@botft
+ \fi
+ \fi\fi
+ \csname ttlr@#1#2\endcsname}
+
+% [Don't move above as \ttl@replace is used as a flag.]
+
+\def\ttl@replace#1#2#3#4{%
+ \@ifundefined{ttlr@#1#2@#3#4}%
+ {\@ifundefined{ttlr@#1#2@#3}{}%
+ {\@namedef{ttlr@#1#2}{\@nameuse{ttlr@#1#2@#3}}}}%
+ {\csname ttlr@xx@x#4\endcsname\@gobble
+ {\expandafter\let\csname ttlr@#1#2\expandafter\endcsname
+ \csname ttlr@#1#2@#3#4\endcsname}}}
+
+\def\ttl@nextfree{%
+ \def\@elt##1{%
+ \edef\ttl@c{\string##1}%
+ \let\@elt\@gobble}%
+ \@freelist
+ \let\@elt\relax
+ \@ifundefined{ttlr@xx@x\ttl@c}%
+ {\expandafter\let\csname ttlr@xx@x\ttl@c\endcsname\@secondoftwo
+ \@tfor\ttl@a:={eh@t}{oh@t}{ef@b}{of@b}{eh@p}{oh@p}{ef@p}{of@p}\do{%
+ \expandafter\global\expandafter
+ \let\csname ttlr@\ttl@a\ttl@c\endcsname\relax}}{}}
+
+\def\ttl@killftps#1{%
+ \expandafter\global\expandafter
+ \let\csname ttlr@xx@x#1\endcsname\relax}
+
+\let\ttl@topft\@empty
+\let\ttl@botft\@empty
+\let\ttl@pageft\@empty
+
+\def\ttl@combinefloats{%
+ \ifx\@toplist\@empty\else
+ \def\@elt##1{%
+ \edef\ttl@topft{\string##1}%
+ \def\@elt####1{\ttl@killftps{\string####1}}}%
+ \@toplist
+ \fi
+ \ifx\@botlist\@empty\else
+ \def\@elt##1{%
+ \def\@elt####1{%
+ \def\@elt####1{\ttl@killftps\ttl@botft}%
+ \edef\ttl@botft{\string####1}}%
+ \edef\ttl@botft{\string##1}}%
+ \@botlist
+ \fi
+ \let\@elt\relax
+ \ttl@combinefloats@x}
+
+\AtBeginDocument{%
+ \let\ttl@combinefloats@x\@combinefloats
+ \let\@combinefloats\ttl@combinefloats}
+
+\endinput