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-%
-% pxesopic.sty
-% written by Hironobu Yamashita (@aminophen)
-%
-% This package is part of the gentombow bundle.
-% https://github.com/aminophen/gentombow
-%
-% This package is expected to be compatible with
-% * eso-pic.sty
-% 2015/07/21 v2.0g -- 2020/09/27 v2.0i
-%
-% --------------------------------------------------------------
-% [Note]
-% The package ``pxesopic.sty'' relies heavily on internals
-% of ``plautopatch.sty''.
-% Also, ``pxesopic.sty'' is incompatible with ``memoir.cls''.
-% --------------------------------------------------------------
-%
-
-%% package declaration
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{pxesopic}
- [2020/10/11 v0.4c Patch to eso-pic for tombow]
-
-%% preparations
-\def\pxesop@pkgname{pxesopic}
-\def\pxesop@error{\PackageError\pxesop@pkgname}
-\def\pxesop@warn{\PackageWarningNoLine\pxesop@pkgname}
-\let\pxesop@debug\@gobble
-%\def\pxesop@debug#1{\typeout{\pxesop@pkgname: [DEBUG] #1}}% for debug
-
-\@ifclassloaded{memoir}{%
- \pxesop@warn{This package should not be loaded with memoir.cls}}{}
-
-\@ifpackageloaded{eso-pic}{%
- \pxesop@error{%
- Package eso-pic is already loaded!\MessageBreak
- Load pxesopic earlier}\@ehc
-}{}
-
-%% hooks
-\ifx\declare@file@substitution\@undefined
- % LaTeX2e 2020-02-02 PL5 or older
- \RequirePackage{filehook}
- \let\pxesop@ExecuteAfterPackage=\AtEndOfPackageFile
- \let\pxesop@ExecuteBeforePackage=\AtBeginOfPackageFile
-\else
- % LaTeX2e 2020-10-01 or newer
- \def\pxesop@ExecuteAfterPackage#1{\AddToHook{package/after/#1}}
- \def\pxesop@ExecuteBeforePackage#1{\AddToHook{package/before/#1}}
-\fi
-
-%% the contents of \AtBeginShipout is dependent on \iftombow;
-%% delay execution of \AtBeginShipout inside ``eso-pic.sty''
-%% until \AtBeginDocument, to support both (u)pLaTeX kernel
-%% and ``gentombow.sty''
-\RequirePackage{atbegshi}% eso-pic requires atbegshi
-\ifx\pfmtname\@undefined\else
- \ifx\AtBegShi@Output\@undefined
- % LaTeX2e 2020-10-01: an emulation by ``atbegshi-ltx.sty''
- % => pLaTeX2e 2020-10-01 natively supports it
- \else
- % older: the real ``atbegshi.sty'' is loaded
- \IfFileExists{pxatbegshi.sty}{\RequirePackage{pxatbegshi}}{}
- \fi
-\fi
-%
-\pxesop@ExecuteBeforePackage{eso-pic}{\pxesop@before}
-\pxesop@ExecuteAfterPackage{eso-pic}{\pxesop@after}
-%
-\def\pxesop@before{%
- \let\pxesop@AtBeginShipout\AtBeginShipout
- \def\AtBeginShipout##1{\def\pxesop@hook{##1}}% hide it
- \pxesop@debug{\noexpand\AtBeginShipout disabled}%
- \let\pxesop@before\relax
-}
-\def\pxesop@after{%
- \let\AtBeginShipout\pxesop@AtBeginShipout % restore
- \let\pxesop@AtBeginShipout\relax
- \pxesop@debug{\noexpand\AtBeginShipout restored}%
- \let\@unknownoptionerror\relax %% avoid an error
- \pxesop@debug{\noexpand\@unknownoptionerror disabled}%
- \let\pxesop@after\relax
-}
-%%
-
-%% load it; be careful not to cause unknown option error!
-\expandafter\ifx\csname @unknownoptionerror\endcsname
- \pxesop@error{Failed to save \noexpand\@unknownoptionerror}\@ehc
-\fi
-\let\pxesop@unknownoptionerror\@unknownoptionerror
-%
-\chardef\pxesop@status\z@
-\@ifpackageloaded{plautopatch}{%
- \expandafter\ifx\csname platpc@begin@eso-pic\endcsname\relax
- % ``plautopatch.sty'' is loaded but the macro is \relax
- % => means that ``pxesopic.sty'' is automatically loaded
- \@ifl@t@r{\fmtversion}{2020/10/01}{%
- \chardef\pxesop@status\@ne
- }{}%
- \fi
-}{}
-%
-%% pass all options to keyval-style ``eso-pic.sty''
-\DeclareOption*{\PassOptionsToPackage{\CurrentOption}{eso-pic}}
-\ProcessOptions\relax
-\RequirePackage{eso-pic}
-%
-%% ensure internal dimensions added in ``eso-pic.sty'' v2.0i
-\ifx\ESO@tempdima\@undefined \newdimen\ESO@tempdima \fi
-\ifx\ESO@tempdimb\@undefined \newdimen\ESO@tempdimb \fi
-%
-%% recover the error
-\ifnum\pxesop@status>\z@ % auto
- \def\pxesop@pkgtohook{eso-pic}%
- % note that ``plautopatch.sty'' discards the hook
- % on LaTeX2e 2020-02-02 PL5 or older
- \ifx\declare@file@substitution\@undefined
- \let\pxesop@pkgtohook\pxesop@pkgname
- % throw an error for unsupported usage
- % [FIXME] the error below is actually unnecessary when
- % none of ``eso-pic.sty'' options is used; how to detect that?
- \pxesop@error{Try loading \pxesop@pkgname\space by hand}\@ehc
- \fi
-\else
- \let\pxesop@pkgtohook\pxesop@pkgname
-\fi
-\pxesop@ExecuteAfterPackage\pxesop@pkgtohook{%
- \let\@unknownoptionerror\pxesop@unknownoptionerror
- \pxesop@debug{\noexpand\@unknownoptionerror restored}%
-}
-%%
-
-%% do it
-%-- similar to bounddvi.sty (checked 2020/10/08 v8.2)
-% detection of \iftombow availability is delayed until \AtBeginDocument,
-% to support both (u)pLaTeX kernel and ``gentombow.sty''
-% Note: this package does not consider changing \iftombow status
-% in the middle of a single document.
-\AtBeginDocument{\pxesop@do}
-\def\pxesop@do{%
- \ifx\tombowtrue\@undefined
- \pxesop@debug{Tombow feature unavailable, no patch applied}%
- \let\pxesop@switch\pxesop@orig % skip if-tokens and restore
- \fi
- \pxesop@switch}
-%
-\def\pxesop@switch{%
- \iftombow \pxesop@ensure@stock \pxesop@new
- \else \pxesop@orig \fi}
-%
-\def\pxesop@ensure@stock{%
- %\iftombow
- % if \stockwidth/\stockheight are not available,
- % define them now
- \ifx\stockwidth\@undefined \newdimen\stockwidth \fi
- \ifx\stockheight\@undefined \newdimen\stockheight \fi
- % if \stockwidth already has effective value, do nothing;
- % otherwise assume pLaTeX-style tombow and set it to
- % \paperwidth + 2in (similar for \stockheight)
- \ifdim\stockwidth>\z@\else
- \stockwidth\paperwidth \advance\stockwidth2in
- \fi
- \ifdim\stockheight>\z@\else
- \stockheight\paperheight \advance\stockheight2in
- \fi
- %\fi
-}
-%--
-%
-%% for \iftombow is FALSE => restore from ``eso-pic.sty''
-\expandafter\def\expandafter\pxesop@orig\expandafter{%
- \expandafter\AtBeginShipout\expandafter{\pxesop@hook}}
-%
-%% for \iftombow is TRUE => redefine by ``pxesopic.sty''
-\def\pxesop@new{%
- %% \AtStockLowerLeft: based on TRUE of \ESO@isMEMOIR
- \renewcommand\AtStockLowerLeft[1]{%
- \begingroup
- \ESO@tempdima=-\stockwidth
- \advance\ESO@tempdima\paperwidth
- \ESO@tempdimb=-\stockheight
- \advance\ESO@tempdimb\paperheight
- %% specific BEGIN
- \advance\ESO@tempdima 1in\relax
- \advance\ESO@tempdimb 1in\relax
- \advance\ESO@tempdima \hoffset\relax
- \advance\ESO@tempdimb \voffset\relax
- %% specific END
- \AtPageLowerLeft{%
- \put(\LenToUnit{\ESO@tempdima},\LenToUnit{\ESO@tempdimb}){##1}%
- }%
- \endgroup
- }% ===
- %% \AtStockUpperLeft: based on TRUE of \ESO@isMEMOIR
- \renewcommand\AtStockUpperLeft[1]{%
- \AtStockLowerLeft{%
- \put(0,\LenToUnit{\stockheight}){##1}%
- }%
- }% ===
- %% \AtStockCenter: based on TRUE of \ESO@isMEMOIR
- \renewcommand\AtStockCenter[1]{%
- \AtStockLowerLeft{%
- \put(\LenToUnit{.5\stockwidth},\LenToUnit{.5\stockheight}){##1}%
- }%
- }%
- %% \AtTextUpperLeft: same as FALSE of \ESO@isMEMOIR
- % (no change)
- %
- %% \AtBeginShipout: based on TRUE of \ESO@isMEMOIR
- \AtBeginShipout{%
- \ESO@tempdima=\dimexpr(\stockwidth-\paperwidth)/2\relax
- \ESO@tempdimb=-\dimexpr(\stockheight+\paperheight)/2\relax
- \ifESO@texcoord
- \advance\ESO@tempdimb\paperheight % [FIXME] not sure!
- \fi
- %% specific BEGIN
- \advance\ESO@tempdima -\hoffset\relax
- \advance\ESO@tempdimb \voffset\relax
- %% specific END
- \nointerlineskip
- \AtBeginShipoutUpperLeft{%
- \put(\LenToUnit{\ESO@tempdima},\LenToUnit{\ESO@tempdimb}){%
- \ESO@HookIIIBG\ESO@HookIBG\ESO@HookIIBG
- \global\let\ESO@HookIIBG\@empty
- }%
- }%
- \AtBeginShipoutUpperLeftForeground{%
- \put(\LenToUnit{\ESO@tempdima},\LenToUnit{\ESO@tempdimb}){%
- \ESO@HookIFG\ESO@HookIIFG\ESO@HookIIIFG
- \global\let\ESO@HookIIFG\@empty
- }%
- }%
- }% ===
-}
-%%
-
-\endinput
-%% EOF