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-%
-% pxftnright.sty
-% written by Hironobu Yamashita (@aminophen)
-%
-% This package is part of the platex-tools bundle.
-% https://github.com/aminophen/platex-tools
-%
-% This package `pxftnright' is based on:
-% * ftnright.sty in latex-tools (2014/10/28 v1.1f)
-% * plcore.ltx in platex
-% (2001/09/26 v1.2a -- 2021/12/08 v1.3l)
-%
-% Problems with ftnright to use with pLaTeX:
-% * \@startcolumn is redefined
-% (incompatible with vertical typesetting)
-% * \@makecol is redefined
-% (bottom float after footnote)
-% * \@makefntext is redefined
-% (incompatible with some pLaTeX classes)
-% * \footnotesep is not suitable for vertical typesetting
-% when used with pLaTeX 2016/11/29 or earlier
-% (rather a problem of \strutbox in pLaTeX2e kernel)
-% so, this package provides patches.
-%
-
-\NeedsTeXFormat{pLaTeX2e}
-\ProvidesPackage{pxftnright}
- [2021/05/24 v1.1a footnote layout package for pLaTeX]
-
-%% save \@makefntext definition from pLaTeX class
-\@ifpackageloaded{ftnright}{%
- \PackageError{pxftnright}{%
- Package ftnright is already loaded!\MessageBreak
- Load pxftnright earlier}\@ehc
-}{}
-\let\pxftn@makefntext\@makefntext
-
-%% load ftnright package
-\RequirePackage{ftnright}
-
-%% patches for ftnright to work fine with pLaTeX
-%% This code is based on pLaTeX2e 2021-06-01 community ed.
-
-\ifx\pltx@adjust@wd@outputbox\@undefined
- % pLaTeX2e <2020-10-01>+2 or older
- \ifx\pdfprimitive\@undefined % just in case ...
- \def\pltx@adjust@wd@outputbox{%
- \ifydir\else\vbox{\hskip\z@}\fi}
- \else % same as plcore.dtx 2021/03/25 v1.3i
- \def\pltx@adjust@wd@outputbox{%
- \ifydir\else\vbox{\pdfprimitive\everypar{}\hskip\z@}\fi}
- \fi
-\fi
-
-\def\@startcolumn{%
- \ifx\@deferlist\@empty
- \global\@fcolmadefalse
- \global\@colroom\@colht
- \else
- \ifvoid\footins\else
- \ftn@amount\ht\footins
- \advance\ftn@amount\dp\footins
- \advance\ftn@amount\skip\footins
- \fi
- \global\advance\@colht-\ftn@amount
- \global\@colroom\@colht
- \@xstartcol
- \global\advance\@colht\ftn@amount
- \global\advance\@colroom\ftn@amount
- \fi
- \if@fcolmade
- \setbox\@cclv\box\@outputbox
- \@makecol
- \else
-%%%%% change for pLaTeX (import from \@reinserts in plcore)
- \ifvoid\footins\else\insert\footins{%
- \iftbox\footins\tate\else\yoko\fi
- \unvbox\footins}\fi
-%%%%%
- \fi}
-
-\def\@makecol{%
-%%%%% change for pLaTeX
- \setbox\@outputbox\box\@cclv
-%%%%%
- \if@firstcolumn
- \if@twocolumn \else
- \ifvoid\footins \else
- \@latexerr{ftnright package
- used in one-column mode}%
- {The ftnright package was designed to
- work with LaTeX's standard^^Jtwocolumn
- option. It does *not* work with the
- multicol package.^^JSo please specify
- `twocolumn' in the
- \noexpand\documentclass command.}%
- \shipout\box\footins \fi\fi
- \ifnum\insertpenalties>\z@
- \@latexerr{ftnright package
- scrambled footnotes}%
- {There is too much footnote material in
- the first column and ftnright^^Jis
- unable to cope with this.^^JYou need
- to reduce the amount to get a properly
- formatted page.}%
- \fi
- \fi
-%%%%% change for pLaTeX (bottom float first)
- \xdef\@freelist{\@freelist\@midlist}%
- \global \let \@midlist \@empty
- \@combinefloats
- \let\pltx@textbottom\@textbottom %%% pLaTeX
- \if@firstcolumn\else
- \ifvoid\footins\else
- \setbox\@outputbox \vbox {%
- \boxmaxdepth \@maxdepth
- \unvbox \@outputbox
- \@textbottom %%% pLaTeX
- \vskip \skip\footins
- \color@begingroup
- \normalcolor
- \footnoterule
- \unvbox \footins
- \color@endgroup
- }%
- \let\@textbottom\relax %%% pLaTeX
- \fi
- \fi
-%%%%%
- \ifvbox\@kludgeins
- \@makespecialcolbox
- \else
- \setbox\@outputbox\vbox to\@colht
- {\boxmaxdepth\maxdepth
- \@texttop
- \dimen@ \dp\@outputbox
- \unvbox \@outputbox
- \pltx@adjust@wd@outputbox %%% pLaTeX
- \vskip -\dimen@
- \@textbottom}%
- \fi
- \let\@textbottom\pltx@textbottom %%% pLaTeX
- \global\maxdepth\@maxdepth
-}
-
-%% adjust \footnotesep for vertical typesetting
-\AtBeginDocument
- {\global\footnotesep\ht\iftdir\tstrutbox\else\strutbox\fi}
-
-%% restore \@makefntext
-\let\@makefntext\pxftn@makefntext
-
-\endinput