%%
%% This is file 'bxpdfver.sty'.
%%
%% Copyright (c) 2014-2022 Takayuki YATO (aka. "ZR")
%%   GitHub:   https://github.com/zr-tex8r
%%   Twitter:  @zr_tex8r
%%
%% This package is distributed under the MIT License.
%%

%% package declaration
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{bxpdfver}[2022/04/28 v0.6]
\def\bxpv@pkgname{bxpdfver}

%% preparations
\RequirePackage{ifthen}[]% for \newboolean
\newif\ifbxpv@ok
\providecommand\bxDebug[1]{}

%--------------------------------------- package options

%% variables
\let\bxpv@drv@type\relax  % driver type
   % p=pdfmode,d=dvipdfmx,0=disabled,x=unsupported
\let\bxpv@drv@name\relax  % driver name
\let\bxpv@version\relax   % version value (eg. 1.4)
\let\bxpv@compress=t      % use compression?
\let\bxpv@obj@compress=t  % use object stream?
\let\bxpv@infolevel\relax % info-log level
\let\bxpv@new@dvipdfmx=f  % assume new dvipdfmx?
\let\bxpv@ignore@pdfmanagement=f

%% \bxpv@valid@versions
\def\bxpv@valid@versions{1.4,1.5,1.6,1.7,2.0}

%% options
% (PDF version)
\@for\bxpv@tmpa:=\bxpv@valid@versions\do{%
  \DeclareOption{\bxpv@tmpa}{%
    \edef\bxpv@version{\CurrentOption}%
  }%
}
% (compression)
\DeclareOption{nocompress}{%
  \let\bxpv@compress=f%
}
\DeclareOption{compress}{%
  \let\bxpv@compress=t%
}
\DeclareOption{noobjcompress}{%
  \let\bxpv@obj@compress=f%
}
\DeclareOption{objcompress}{%
  \let\bxpv@obj@compress=t%
}
% (driver)
\DeclareOption{native}{%
  \let\bxpv@drv@type=p%
  \def\bxpv@drv@name{native}%
}
\DeclareOption{dvipdfmx}{%
  \let\bxpv@drv@type=d%
  \def\bxpv@drv@name{dvipdfmx}%
}
\DeclareOption{dvips}{%
  \let\bxpv@drv@type=x%
  \def\bxpv@drv@name{dvips}%
}
\DeclareOption{dviout}{%
  \let\bxpv@drv@type=x%
  \def\bxpv@drv@name{dviout}%
}
\DeclareOption{xdvi}{%
  \let\bxpv@drv@type=x%
  \def\bxpv@drv@name{xdvi}%
}
\DeclareOption{disabled}{%
  \let\bxpv@drv@type=0%
  \def\bxpv@drv@name{disabled}%
}
\DeclareOption{nodvidriver}{%
  \let\bxpv@drv@type=0%
  \def\bxpv@drv@name{nodvidriver}%
}
\DeclareOption{resetdvidriver}{%
  \let\bxpv@drv@type\relax
  \let\bxpv@drv@name\relax
}
\DeclareOption{new-dvipdfmx}{%
  \let\bxpv@drv@type=d%
  \let\bxpv@new@dvipdfmx=t%
  \def\bxpv@drv@name{dvipdfmx}%
}
% (other)
\DeclareOption{lenient}{%
  \chardef\bxpv@infolevel=1
}
\DeclareOption{nolenient}{%
  \chardef\bxpv@infolevel=2
}
\DeclareOption{lenient+}{%
  \chardef\bxpv@infolevel=0
}
\DeclareOption{nolenient+}{%
  \chardef\bxpv@infolevel=2
}
\DeclareOption{ignorepdfmanagement}{%
  \let\bxpv@ignore@pdfmanagement=t
}
\DeclareOption{noignorepdfmanagement}{%
  \let\bxpv@ignore@pdfmanagement=f
}

%% process
\ProcessOptions*

%% default infolevel value
\ifx\bxpv@infolevel\relax
  \if 0\bxpv@drv@type
    \chardef\bxpv@infolevel=0 %'lenient+'
  \else
    \chardef\bxpv@infolevel=2 %'nolenient'
  \fi
\fi

%--------------------------------------- helpers

%% unique tokens
\def\bxpv@end{\bxpv@end@}
\def\bxpv@mt{\bxpv@mt@}
\let\bxpv@mk\noindent

%% \bxpv@csletcs
\def\bxpv@csletcs#1#2{%
  \expandafter\let\csname#1\expandafter\endcsname\csname#2\endcsname
}

%% \bxpv@detokenize\CS
\def\bxpv@detokenize#1{%
  \expandafter\bxpv@detokenize@a\meaning#1\bxpv@end#1%
}
\def\bxpv@detokenize@a#1>#2\bxpv@end#3{%
  \def#3{#2}%
}

%% \bxpv@warn{<message>}
% Issues a warning.
\@onlypreamble\bxpv@warn
\def\bxpv@warn#1{%
  \ifcase\bxpv@infolevel % info when lenient+
    \PackageInfo\bxpv@pkgname{#1\@gobble}%
  \else % warn otherwise
    \PackageWarningNoLine\bxpv@pkgname{#1}%
  \fi
}

%% \bxpv@fail{<message>}
% Issues an error or a warning.
\@onlypreamble\bxpv@fail
\def\bxpv@fail#1{%
  \ifcase\bxpv@infolevel % silenced
  \or % lenient
    \PackageWarningNoLine\bxpv@pkgname{#1}%
  \or % strict
    \PackageError\bxpv@pkgname{#1}{\@ehc}%
  \fi
}

%% \bxpv@fail@nafea
\@onlypreamble\bxpv@fail@nafea
\def\bxpv@fail@nafea#1{%
  \bxpv@fail{#1, because\MessageBreak
    the engine/driver does not support the feature}%
}

%% \ifbxpv@defined
\let\ifbxpv@defined\ifdefined
\ifx\ifbxpv@defined\@undefined \expandafter\@firstofone
\else \expandafter\@gobble
\fi{\let\ifbxpv@defined\iffalse}

%% \ifbxpv@old@hook@system
\newif\ifbxpv@old@hook@system
\@ifl@t@r\fmtversion{2020/10/01}{}{\bxpv@old@hook@systemtrue}

%--------------------------------------- internal dispatchers

%% \bxpv@suppress@compress
\@onlypreamble\bxpv@suppress@compress
\def\bxpv@suppress@compress{%
  \bxpv@fail@nafea{Cannot suppress compression}%
}
%% \bxpv@suppress@obj@compress
\@onlypreamble\bxpv@suppress@obj@compress
\def\bxpv@suppress@obj@compress{%
  \bxpv@fail@nafea{Cannot suppress object compression}%
}
%% \bxpv@check@version
\@onlypreamble\bxpv@check@version
\let\bxpv@check@version\bxpv@okfalse
%% \bxpv@set@version
\@onlypreamble\bxpv@set@version
\def\bxpv@set@version{%
  \bxpv@fail@nafea{Cannot set PDF version}%
}
%% \bxpv@set@decimaldigits
\@onlypreamble\bxpv@set@decimaldigits
\def\bxpv@set@decimaldigits{%
  \bxpv@fail@nafea{Cannot set PDF decimal digits}%
}
%% \bxpv@set@pkresolution
\@onlypreamble\bxpv@set@pkresolution
\def\bxpv@set@pkresolution{%
  \bxpv@fail@nafea{Cannot set PK resolution}%
}
%% \bxpv@preserve@destinations
\@onlypreamble\bxpv@preserve@destinations
\def\bxpv@preserve@destinations{%
  \bxpv@fail@nafea{Cannot preserve PDF destinations}%
}
%% \bxpv@cancel@obj@compress
% The silent version of \bxpv@suppress@obj@compress.
\@onlypreamble\bxpv@cancel@obj@compress
\let\bxpv@cancel@obj@compress\relax

%% \bxpv@begin@document@hook
% The begin-document hook.
\@onlypreamble\bxpv@begin@document@hook
\let\bxpv@begin@document@hook\@empty
\AtBeginDocument{\bxpv@begin@document@hook}
\g@addto@macro\bxpv@begin@document@hook{%
  \bxpv@check@hyperref % must come first
}

%% check for new PDF management
\if t\bxpv@ignore@pdfmanagement\else
  \ifx\IfPDFManagementActiveTF\@undefined\else
    \IfPDFManagementActiveTF{%
      \global\let\bxpv@drv@type=m%
    }{}
  \fi
\fi

%% adjust internal dispatchers
\ifx 0\bxpv@drv@type\else               %--------
\begingroup

%% \bxpv@check@prim\CS{<proc>}
% Do <proc> if \CS is defined as primitive.
\def\bxpv@check@prim#1{%
  \edef\bxpv@tmpa{\string#1}%
  \edef\bxpv@tmpb{\meaning#1}%
  \ifx\bxpv@tmpa\bxpv@tmpb \expandafter\@firstofone
  \else \expandafter\@gobble
  \fi
}

%% \bxpv@pdfoutput
\chardef\bxpv@pdfoutput\z@
\bxpv@check@prim\pdfoutput{\chardef\bxpv@pdfoutput\pdfoutput}
\bxpv@check@prim\outputmode{\chardef\bxpv@pdfoutput\outputmode}
\bxpv@check@prim\ngbanner{\chardef\bxpv@pdfoutput\@ne}

%% switch
\if m\bxpv@drv@type
  %% when in new PDF management
  \bxpv@warn
   {New PDF management is active}%
\else\ifnum\bxpv@pdfoutput>\z@
  %% when in PDF mode
  \global\let\bxpv@drv@type=p
  \global\let\bxpv@@compresslevel\pdfcompresslevel
  \global\let\bxpv@@objcompresslevel\pdfobjcompresslevel
  \global\let\bxpv@@minorversion\pdfminorversion
  \global\let\bxpv@@decimaldigits\pdfdecimaldigits
  \global\let\bxpv@@pkresolution\pdfpkresolution
  \global\let\bxpv@@majorversion\pdfmajorversion
  \bxpv@check@prim\pdfvariable{%
    \protected\xdef\bxpv@@compresslevel{\pdfvariable compresslevel}%
    \protected\xdef\bxpv@@objcompresslevel{\pdfvariable objcompresslevel}%
    \protected\xdef\bxpv@@minorversion{\pdfvariable minorversion}%
    \protected\xdef\bxpv@@decimaldigits{\pdfvariable decimaldigits}%
    \protected\xdef\bxpv@@pkresolution{\pdfvariable pkresolution}%
    \ifnum 0\directlua{%
      if pdf.getmajorversion then tex.write('1') end}>\z@
      \protected\xdef\bxpv@@majorversion{\pdfvariable majorversion}%
    \fi
  }%
  % If \pdfcompresslevel is available, use it.
  \ifbxpv@defined\bxpv@@compresslevel
    \gdef\bxpv@suppress@compress{%
      \global\bxpv@@compresslevel\z@
    }%
  \fi
  % If \pdfobjcompresslevel is available, use it.
  \ifbxpv@defined\bxpv@@objcompresslevel
    \global\chardef\bxpv@org@objcompresslevel\bxpv@@objcompresslevel
    \gdef\bxpv@suppress@obj@compress{%
      \global\bxpv@@objcompresslevel\z@
    }%
    \global\let\bxpv@cancel@obj@compress\bxpv@suppress@obj@compress
  \fi
  % If \pdfmajorversion/\pdfminorversion is available, use it.
  \ifbxpv@defined\bxpv@@majorversion
    \global\chardef\bxpv@org@minorversion\bxpv@@minorversion
    \global\chardef\bxpv@org@majorversion\bxpv@@majorversion
    \global\let\bxpv@check@version\bxpv@oktrue
    \gdef\bxpv@set@version{%
      \ifx\bxpdfverMinorVersion\relax
        \global\bxpv@@minorversion\bxpv@org@minorversion
        \global\bxpv@@majorversion\bxpv@org@majorversion
      \else
        \global\bxpv@@minorversion\bxpdfverMinorVersion
        \global\bxpv@@majorversion\bxpdfverMajorVersion
      \fi
    }%
    \g@addto@macro\bxpv@begin@document@hook{%
      \ifnum\bxpv@@majorversion<2 \ifnum\bxpv@@minorversion<5
        \bxpv@cancel@obj@compress
      \fi\fi
    }%
  \else\ifbxpv@defined\bxpv@@minorversion
    \global\chardef\bxpv@org@minorversion\bxpv@@minorversion
    \gdef\bxpv@check@version{%
      \bxpv@oktrue
      \ifx\bxpdfverMajorVersion\tw@
        \bxpv@okfalse % cannot set major version 2
      \fi
    }
    \gdef\bxpv@set@version{%
      \ifx\bxpdfverMinorVersion\relax
        \global\bxpv@@minorversion\bxpv@org@minorversion
      \else
        \global\bxpv@@minorversion\bxpdfverMinorVersion
      \fi
    }%
    \g@addto@macro\bxpv@begin@document@hook{%
      \ifnum\bxpv@@minorversion<5
        \bxpv@cancel@obj@compress
      \fi
    }%
  \fi\fi
  % If \pdfdecimaldigits is available, use it.
  \ifbxpv@defined\bxpv@@decimaldigits
    \global\chardef\bxpv@org@decimaldigits\bxpv@@decimaldigits
    \gdef\bxpv@set@decimaldigits{%
      \ifx\bxpdfverDecimalDigits\relax
        \global\bxpv@@decimaldigits\bxpv@org@decimaldigits
      \else
        \global\bxpv@@decimaldigits\bxpdfverDecimalDigits
      \fi
    }%
  \fi
  % If \pdfpkresolution is available, use it.
  \ifbxpv@defined\bxpv@@pkresolution
    \global\mathchardef\bxpv@org@pkresolution\bxpv@@pkresolution
    \gdef\bxpv@set@pkresolution{%
      \ifx\bxpdfverPkResolution\relax
        \global\bxpv@@pkresolution\bxpv@org@pkresolution
      \else
        \global\bxpv@@pkresolution\bxpdfverPkResolution
      \fi
    }%
  \fi
  % On pdfTeX or LuaTeX, \pdfpreservedestionations can be no-op.
  \bxpv@oktrue \bxpv@check@prim\ngbanner{\bxpv@okfalse}%
  \ifbxpv@ok
    \global\let\bxpv@preserve@destinations\relax
  \fi
\else
  %% when in DVI mode
  % XeTeX should do just as dvipdfmx.
  \bxpv@check@prim\XeTeXversion{%
    \global\let\bxpv@drv@type=d%
  }
  % strange engines
  \bxpv@check@prim\HINTversion{%
    \global\let\bxpv@drv@type=X%
  }
\fi\fi
\if x\bxpv@drv@type % 'bad' driver
  \bxpv@warn
   {Unsupported driver '\bxpv@drv@name'}%
\else\if X\bxpv@drv@type % strange engine
  \bxpv@warn
   {Unsupported engine}%
\else\if d\bxpv@drv@type % 'dvipdfmx'
  \global\let\bxpv@suppress@compress\relax
  \global\let\bxpv@suppress@obj@compress\relax
  \global\let\bxpv@check@version\relax
  \global\let\bxpv@set@version\relax
  \global\let\bxpv@set@decimaldigits\relax
  %\global\let\bxpv@set@pkresolution\relax
  \global\let\bxpv@preserve@destinations\relax
  \g@addto@macro\bxpv@begin@document@hook{%
    \bxpv@begin@document@dvipdfmx
  }
  \AtEndOfPackage{\g@addto@macro\bxpv@begin@document@hook{%
    \bxpv@cache@finalize
  }}
\else\if \relax\bxpv@drv@type % no driver
  \bxpv@fail
   {No driver option is given}%
  \global\chardef\bxpv@infolevel=0
\fi\fi\fi\fi

\endgroup
\fi                                     %--------

%--------------------------------------- public interface

%%<*> \suppresspdfcompression
\@onlypreamble\suppresspdfcompression
\newcommand*\suppresspdfcompression{%
  \bxpv@suppress@compress
  \global\bxpdfverCompressionSuppressedtrue
}

%%<*> \suppresspdfobjcompression
\@onlypreamble\suppresspdfobjcompression
\newcommand*\suppresspdfobjcompression{%
  \bxpv@suppress@obj@compress
  \global\bxpdfverObjCompressionSuppressedtrue
}

% Note: Priority against hyperref's 'pdfversion' parameter
% The existing behaviors on PDF mode should be preserved:
% - If hyperref is loaded but 'pdfversion' is not given, then
%   bxpdfver's setting (explicit request) should win.
% - If hyperref is loaded and 'pdfversion' is given, then
%   hyperref should win (with a warning).

%%<*> \setpdfversion{<version>}
\@onlypreamble\setpdfversion
\newcommand*\setpdfversion[1]{%
  \edef\bxpv@version{#1}%
  \bxpv@set@version@values
  \bxpv@check@version
  \ifbxpv@ok
    \bxpv@set@version
  \else
    \bxpv@fail@nafea{Cannot set PDF version to '\bxpv@version'}%
  \fi
}

%%<*> \setpdfdecimaldigits{<number>}
\@onlypreamble\setpdfdecimaldigits
\newcommand*\setpdfdecimaldigits[1]{%
  \bxpv@assign@num\bxpdfverDecimalDigits{#1}{0}{4}%
  \bxpv@set@decimaldigits
}

%%<*> \setpdfpkresolution{<number>}
\@onlypreamble\setpdfpkresolution
\newcommand*\setpdfpkresolution[1]{%
  \bxpv@assign@num\bxpdfverPkResolution{#1}{0}{10000}%
  \bxpv@set@pkresolution
}

%%<*> \preservepdfdestinations
\@onlypreamble\preservepdfdestinations
\newcommand*\preservepdfdestinations{%
  \bxpv@preserve@destinations
  \global\bxpdfverDestinationsPreservedtrue
}

%%<+> \ifbxpdfverCompressionSuppressed
\newboolean{bxpdfverCompressionSuppressed}

%%<+> \ifbxpdfverObjCompressionSuppressed
\newboolean{bxpdfverObjCompressionSuppressed}

%%<+> \bxpdfverMinorVersion
% The PDF minor version (eg. '4' for 1.4) that this package
% will impose. It is a number constant, or \relax.
\@ifdefinable{\bxpdfverMinorVersion}{%
  \let\bxpdfverMinorVersion\relax
}

%%<+> \bxpdfverMajorVersion
% The PDF major version (eg. '1' for 1.4) that this package
% will impose. It is a number constant, or \relax.
\@ifdefinable{\bxpdfverMajorVersion}{%
  \let\bxpdfverMajorVersion\relax
}

%%<+> \bxpdfverDecimalDigits
% The PDF decimal-digits value that this package
% will impose. It is a number constant, or \relax.
\@ifdefinable{\bxpdfverDecimalDigits}{%
  \let\bxpdfverDecimalDigits\relax
}

%%<+> \bxpdfverPkResolution
% The PK resolution value that this package
% will impose. It is a number constant, or \relax.
\@ifdefinable{\bxpdfverPkResolution}{%
  \let\bxpdfverPkResolution\relax
}

%%<+> \ifbxpdfverDestinationsPreserved
\newboolean{bxpdfverDestinationsPreserved}

%% \bxpv@assign@num\CS{<value>}{<min>}{<max>}
\@onlypreamble\bxpv@assign@num
\def\bxpv@assign@num#1#2#3#4{%
  \begingroup
    \edef\bxpv@tmpa{#2}%
    \ifx\bxpv@tmpa\@empty
      \global\let#1\relax
    \else
      \@tempswatrue
      \afterassignment\bxpv@assign@num@a
      \@tempcnta=\bxpv@tmpa\bxpv@mk
      \if@tempswa
        \ifnum\@tempcnta<#3\relax \@tempswafalse \fi
        \ifnum\@tempcnta>#4\relax \@tempswafalse \fi
        \if@tempswa
          \global\mathchardef#1=\@tempcnta
        \else
          \PackageError\bxpv@pkgname
           {Number is out of range (#3..#4)\MessageBreak
            (value=\the\@tempcnta)}%
           {\@ehc}
        \fi
      \else
        \PackageError\bxpv@pkgname
         {Illegal number format\MessageBreak
          (value=\bxpv@tmpa)}%
         {\@ehc}
      \fi
    \fi
  \endgroup}
\@onlypreamble\bxpv@assign@num@a
\def\bxpv@assign@num@a#1\bxpv@mk{%
  \ifx\bxpv@mt#1\bxpv@mt\else \@tempswafalse \fi}

%--------------------------------------- version values

%% variables
\let\bxpv@mversion\relax  % minor version (temporary)

%% \bxpv@set@version@values
% Sets \bxpdfverMinorVersion/\bxpdfverMajorVersion.
\@onlypreamble\bxpv@set@version@values
\def\bxpv@set@version@values{%
  \edef\bxpv@version{\bxpv@version}%
  \let\bxpv@tmpc\bxpv@version
  \ifx\bxpv@version\@empty
    \global\let\bxpdfverMinorVersion\relax % unset
    \global\let\bxpdfverMajorVersion\relax % unset
  \else
    \bxpv@okfalse
    \@for\bxpv@tmpa:=\bxpv@valid@versions\do{%
      \ifx\bxpv@version\bxpv@tmpa
        \bxpv@oktrue
      \fi
    }%
    \ifbxpv@ok\else
      \bxpv@check@file@version
      \ifx\bxpv@version\relax
        \bxpv@okfalse
      \else
        \bxpv@oktrue
        \PackageInfo\bxpv@pkgname
         {Output PDF version is set to \bxpv@version\MessageBreak}%
      \fi
    \fi
    \ifbxpv@ok
      \expandafter\bxpv@set@version@values@a\bxpv@version\relax
    \else
      \PackageError\bxpv@pkgname
       {Invalid value given for PDF version\MessageBreak
        (value=\bxpv@tmpc)}{%
        PDF version must be either one of the following:\MessageBreak
        \@spaces \bxpv@valid@versions;\MessageBreak
        or the name of a PDF file from which the version is pulled.%
        \MessageBreak\@ehc}%
    \fi
  \fi
}
\def\bxpv@set@version@values@a#1.#2\relax{%
  \global\chardef\bxpdfverMinorVersion=#2\relax
  \global\chardef\bxpdfverMajorVersion=#1\relax
}

%% \bxpv@check@file@version
\@onlypreamble\bxpv@check@file@version
\def\bxpv@check@file@version{%
  \expandafter\bxpv@check@file@version@a\bxpv@version\bxpv@end
}
\@onlypreamble\bxpv@check@file@version@a
\def\bxpv@check@file@version@a#1\bxpv@end{%
  \filename@parse{#1}%
  \edef\bxpv@next{%
    \lowercase{\def\noexpand\filename@ext{\filename@ext}}%
  }\bxpv@next
  \def\bxpv@tmpb{pdf}%
  \let\bxpv@version\relax
  \ifx\filename@ext\bxpv@tmpb
    \global\let\bxpv@gtmpa\relax
    \bxpv@read@file{#1}{%
      \bxpv@check@file@version@xa{##1 }%
      \bxpv@read@file@finish
    }%
    \ifbxpv@read@file@ok\else
      \PackageWarning\bxpv@pkgname
       {File '#1' not found}%
    \fi
    \@for\bxpv@tmpa:=\bxpv@valid@versions\do{%
      \ifx\bxpv@gtmpa\bxpv@tmpa
        \let\bxpv@version\bxpv@tmpa
      \fi
    }%
  \fi
}
% some more subprocedures
\@onlypreamble\bxpv@check@file@version@xa
\@onlypreamble\bxpv@check@file@version@xb
\@onlypreamble\bxpv@check@file@version@xc
\begingroup
  \escapechar\m@ne
  \def\bxpv@tmpa#1\bxpv@end{%
    \gdef\bxpv@check@file@version@xa##1{%
      \bxpv@check@file@version@xb##1#1\bxpv@end
    }%
    \gdef\bxpv@check@file@version@xb##1#1##2\bxpv@end{%
      \ifx\bxpv@mt##1\bxpv@mt
        \bxpv@check@file@version@xc##2\bxpv@end
      \fi
    }%
    \gdef\bxpv@check@file@version@xc##1 ##2\bxpv@end{%
      \gdef\bxpv@gtmpa{##1}%
    }%
  }
  \edef\bxpv@tmpb{{\expandafter\string\csname\string\%PDF-\endcsname}}%
  \expandafter\bxpv@tmpa\bxpv@tmpb\bxpv@end
\endgroup

%% \bxpv@check@hyperref
\def\bxpv@check@hyperref{%
  \bxpv@oktrue
  \ifx\bxpdfverMinorVersion\relax\else
    \@ifpackageloaded{hyperref}{%
      \expandafter\ifx\csname ifHy@setpdfversion\expandafter
          \endcsname\csname iftrue\endcsname
        \bxpv@okfalse
      \fi
    }{}%
  \fi
  \ifbxpv@ok\else
    \PackageWarningNoLine\bxpv@pkgname
     {Both hyperref and this package try to set the PDF\MessageBreak
      version; this can cause problems. This package's\MessageBreak
      setting will be withdrawn for now, but you must\MessageBreak
      fix your source to avoid it}%
    % Note: In PDF mode, the real parameters will be overwritten
    % later by hyperref.
    \let\bxpdfverMinorVersion\relax
    \let\bxpdfverMajorVersion\relax
  \fi
}

%--------------------------------------- dvipdfmx something
\ifx d\bxpv@drv@type % 'dvipdfmx'

%% required packages
\ifbxpv@old@hook@system
\RequirePackage{atbegshi}[2007/04/19]% v1.2
\fi

%% variables
\let\bxpv@C@value\relax

%% \bxpv@C@bits
\@onlypreamble\bxpv@C@bits
\let\bxpv@C@bits\@empty

%% \bxpv@page@specials
\let\bxpv@page@specials\@empty

%% \bxpv@put@special
\@onlypreamble\bxpv@put@special
\def\bxpv@put@special#1{%
  \edef\bxpv@page@specials{\bxpv@page@specials\special{#1}}%
}

%% \bxpv@begin@document@dvipdfmx
\@onlypreamble\bxpv@begin@document@dvipdfmx
\def\bxpv@begin@document@dvipdfmx{%
  % PDF version
  \ifx\bxpdfverMajorVersion\tw@
    \bxpv@check@dvipdfmx@version{20180217}%
     {Cannot set PDF major version}%
  \else
    \bxpv@oktrue
  \fi
  \ifbxpv@ok
    \ifx\bxpdfverMinorVersion\relax\else
      \bxpv@put@special{pdf:minorversion \the\bxpdfverMinorVersion}%
    \fi
    \ifx\bxpdfverMinorVersion\relax\else
      \bxpv@cache@fetch{dvipdfmxver}%
      \ifnum\bxpv@cache@@dvipdfmxver<20180217 \else
        \bxpv@put@special{pdf:majorversion \the\bxpdfverMajorVersion}%
      \fi
    \fi
  \fi
  % compression
  \ifbxpdfverCompressionSuppressed
    \bxpv@check@dvipdfmx@version{20160307}%
     {Cannot suppress compression}%
    \ifbxpv@ok
      % New dvipdfmx supports this special.
      \bxpv@put@special{dvipdfmx:config z 0}%
    \fi
  \fi
  % object compression
  \ifbxpdfverObjCompressionSuppressed
    \bxpv@check@dvipdfmx@version{20160307}%
     {Cannot suppress object compression}%
    \ifbxpv@ok
      \g@addto@macro\bxpv@C@bits{\do{64}}%
    \fi
  \fi
  % PDF decimal digits
  \ifx\bxpdfverDecimalDigits\relax\else
    \bxpv@check@dvipdfmx@version{20160307}%
     {Cannot set PDF decimal digits}%
    \ifbxpv@ok
      \bxpv@put@special{dvipdfmx:config d \the\bxpdfverDecimalDigits}%
    \fi
  \fi
  % PK resolution
  \ifx\bxpdfverPkResolution\relax\else
    \iffalse % This will never work....
      \bxpv@put@special{dvipdfmx:config r \the\bxpdfverPkResolution}%
    \fi
  \fi
  % PDF destinations
  \ifbxpdfverDestinationsPreserved
    \bxpv@check@dvipdfmx@version{20160307}%
     {Cannot preserve PDF destinations}%
    \ifbxpv@ok
      \g@addto@macro\bxpv@C@bits{\do{16}}%
    \fi
  \fi
  % C option value
  \ifx\bxpv@C@bits\@empty\else
    \bxpv@cache@fetch{dvipdfmxcfg}%
    \def\bxpv@next##1##2\bxpv@mk{\def\bxpv@C@value{##1}}%
    \expandafter\bxpv@next\bxpv@cache@@dvipdfmxcfg{0}\bxpv@mk
    \bxpv@rc@bitset{\bxpv@C@value}{64}%
    \def\do##1{%
      \bxpv@rc@bitset{\bxpv@C@value}{##1}%
      \let\bxpv@C@value\bxpv@rc@num}%
    \bxpv@C@bits
    \bxpv@put@special{dvipdfmx:config C \bxpv@C@value}%
  \fi
  % special added to every page
  \ifx\bxpv@page@specials\@empty\else
    \edef\bxpv@page@specials{\bxpv@page@specials}%
    \ifbxpv@old@hook@system
    \AtBeginShipout{%
      \setbox\AtBeginShipoutBox=\vbox{%
        \baselineskip\z@skip\lineskip\z@skip\lineskiplimit\z@
        \bxpv@page@specials
        \copy\AtBeginShipoutBox
      }%
    }%
    \else
      \AddToHook{shipout/foreground}{%
        \hb@xt@\z@{\bxpv@page@specials\hss}}%
    \fi
  \fi
}

%% \bxpv@check@dvipdfmx@version
\@onlypreamble\bxpv@check@dvipdfmx@version
\def\bxpv@check@dvipdfmx@version#1#2{%
  \bxpv@cache@fetch{dvipdfmxver}%
  \bxpv@okfalse
  \ifnum\bxpv@cache@@dvipdfmxver=\z@
    \bxpv@fail
     {#2, because the\MessageBreak
      version of dvipdfmx in use is unknown
      \MessageBreak (v.#1 or later is required)}%
  \else\ifnum\bxpv@cache@@dvipdfmxver<#1
    \bxpv@fail
     {#2, because the\MessageBreak
      version of dvipdfmx in use (v.\bxpv@cache@@dvipdfmxver) is too old
      \MessageBreak (v.#1 or later is required)}%
  \else
    \PackageInfo\bxpv@pkgname
     {dvipdfmx version is \bxpv@cache@@dvipdfmxver\@gobble}%
    \bxpv@oktrue
  \fi\fi
}

\fi
%--------------------------------------- software version

%% \bxpv@cache@get@@newtex
% Returns 1 if the version of TeX is 3.14159265 (released on
% 2014/01/20) or later, 0 otherwise.
\@onlypreamble\bxpv@cache@get@@newtex
\def\bxpv@cache@get@@newtex{%
  \edef\bxpv@tmpa{\expandafter\noexpand\csname\endcsname}%
  \def\bxpv@tmpb##1 ##2##3\@nil{\gdef\bxpv@g@value{##2}}%
  \expandafter\bxpv@tmpb\meaning\bxpv@tmpa1 0\@nil
}

%% \bxpv@cache@get@@dvipdfmxver
% Returns the version of dvipdfmx (eg. 20110311).
% It returns 0 in failure.
\@onlypreamble\bxpv@cache@get@@dvipdfmxver
\def\bxpv@cache@get@@dvipdfmxver{%
  % Here the version of TeX is checked, bacause on old TeX
  % engines on Windows, pipe inputs will fail when the
  % command line has arguments.
  \bxpv@cache@fetch{newtex}%
  \global\let\bxpv@gtmpa\relax
  \ifnum\bxpv@cache@@newtex>\z@
    \def\bxpv@tmpc{This is extractbb Version }%
    \bxpv@detokenize\bxpv@tmpc
    \bxpv@read@file{"|extractbb --version"}{%
      \bxpv@split@at{\bxpv@tmpc}{##1}%
      \ifx\bxpv@pre\relax\else
        \global\let\bxpv@gtmpa\bxpv@post
      \fi
    }%
  \fi
  \ifx\bxpv@gtmpa\relax % failed somewhere
    \gdef\bxpv@g@value{0}%
  \else
    \global\let\bxpv@g@value\bxpv@gtmpa
  \fi
}

%--------------------------------------- dvipdfmx config

%% variables
\let\bxpv@rc@num\relax

%% \bxpv@cache@get@@dvipdfmxcfg
\@onlypreamble\bxpv@cache@get@@dvipdfmxcfg
\def\bxpv@cache@get@@dvipdfmxcfg{%
  % check TeX version
  \bxpv@cache@fetch{newtex}%
  \ifnum\bxpv@cache@@newtex>\z@
    % search dvipdfmx.cfg
    \global\let\bxpv@gtmpa\@empty
    \bxpv@read@file{%
      "|kpsewhich --progname=dvipdfmx --format=othertext dvipdfmx.cfg"%
    }{%
      \gdef\bxpv@gtmpa{##1}%
      \bxpv@read@file@finish
    }%
    % read the file
    \ifx\bxpv@gtmpa\@empty\else
      \gdef\bxpv@g@rc@tmp@C{0}%
      \def\bxpv@rc@tmp@C{C }%
      \bxpv@detokenize\bxpv@rc@tmp@C
      \gdef\bxpv@g@rc@tmp@V{5}%
      \def\bxpv@rc@tmp@V{V }%
      \bxpv@detokenize\bxpv@rc@tmp@V
      \bxpv@read@file{\bxpv@gtmpa}{%
        \bxpv@split@at{\bxpv@rc@tmp@C}{##1}%
        \ifx\bxpv@pre\@empty
          \bxpv@rc@parse@num{\bxpv@post}%
          \global\let\bxpv@g@rc@tmp@C\bxpv@rc@num
        \fi
        \bxpv@split@at{\bxpv@rc@tmp@V}{##1}%
        \ifx\bxpv@pre\@empty
          \bxpv@rc@parse@num{\bxpv@post}%
          \global\let\bxpv@g@rc@tmp@V\bxpv@rc@num
        \fi
      }%
      % the return value
      \xdef\bxpv@g@value{{\bxpv@g@rc@tmp@C}{\bxpv@g@rc@tmp@V}}%
    \fi
  \fi
}

%% \bxpv@rc@parse@num{<string>}
% Returns to \bxpv@rc@num.
\def\bxpv@rc@parse@num#1{%
  \edef\bxpv@tmpy{#1\relax\relax}%
  \expandafter\bxpv@rc@parse@num@a\bxpv@tmpy\bxpv@end
}
\def\bxpv@rc@parse@num@a#1#2\bxpv@end{%
  % skip leading spaces and change to uppercase
  \uppercase{\bxpv@rc@parse@num@b#1#2\bxpv@end}%
}
\def\bxpv@rc@parse@num@b#1#2#3\bxpv@end{%
  \def\bxpv@tmpy{#1#2#3}%
  \if0#1\if X#2% convert '0x' to '"'
    \def\bxpv@tmpy{"#3}%
  \fi\fi
  \afterassignment\bxpv@rc@parse@num@c\@tempcnta=\bxpv@tmpy
}
\def\bxpv@rc@parse@num@c#1\relax{% discard trailer
  \edef\bxpv@rc@num{\the\@tempcnta}%
}

%% \bxpv@rc@bitset{<number1>}{<number2>}
% Returns to \bxpv@rc@num.
\def\bxpv@rc@bitset#1#2{%
  \@tempcnta=#1\relax \divide\@tempcnta#2\relax
  \@tempcnta=\ifodd\@tempcnta\z@\else#2\relax\fi
  \advance\@tempcnta#1\relax
  \edef\bxpv@rc@num{\the\@tempcnta}%
}

%--------------------------------------- string splitter

%% variables
\let\bxpv@pre\relax
\let\bxpv@post\relax

%% \bxpv@split@at{<sep>}{<text>}
% Splits the text by the given separator.
% In success, it will set \bxpv@pre and \bxpv@post.
\def\bxpv@split@at#1#2{%
  \edef\bxpv@next{{#1}{#2}}%
  \expandafter\bxpv@split@at@a\bxpv@next
}
\def\bxpv@split@at@a#1#2{%
  \def\bxpv@next##1#1##2\bxpv@end{%
    \bxpv@split@at@b{##1}{##2}}%
  \bxpv@next#2\bxpv@mk#1\bxpv@end
}
\def\bxpv@split@at@b#1#2{%
  \ifx\bxpv@mt#2\bxpv@mt
    \let\bxpv@pre\relax \let\bxpv@post\relax
  \else
    \def\bxpv@pre{#1}%
    \bxpv@split@at@c#2\bxpv@end
  \fi
}%
\def\bxpv@split@at@c#1\bxpv@mk#2\bxpv@end{%
  \def\bxpv@post{#1}%
}%

%--------------------------------------- file reader

%% variables
\let\bxpv@rf@parse\relax    % line parser
\let\bxpv@rf@line\relax     % line content
\let\bxpv@rf@cont\relax     % continue to read?

%% \ifbxpv@read@file@ok
% Whether or not the last \bxpv@read@file succeeded.
\newboolean{bxpv@read@file@ok}

%% \bxpv@read@file{<file-name>}{<line-parser-code>}
% Reads from a text file. The line parser takes as #1 the
% content of each line. 
\def\bxpv@read@file#1{%
  \bxpv@read@file@oktrue
  \begingroup
    \openin\@inputcheck=#1\relax
    \afterassignment\bxpv@read@file@a
      \def\bxpv@rf@parse##1%
}
\@onlypreamble\bxpv@read@file@a
\def\bxpv@read@file@a{%
    \ifeof\@inputcheck
      \aftergroup\bxpv@read@file@okfalse
    \else
      % freeze special characters
      \@tempcnta\z@
      \loop\ifnum\@tempcnta<\@cclvi
        \catcode\@tempcnta12
        \advance\@tempcnta\@ne
      \repeat
      \endlinechar\m@ne
      % go to loop
      \chardef\bxpv@rf@cont\@ne
      \bxpv@read@file@b
    \fi
    \closein\@inputcheck
  \endgroup
}
\@onlypreamble\bxpv@read@file@b
\def\bxpv@read@file@b{%
  \read\@inputcheck to\bxpv@rf@line
  \bxpv@detokenize\bxpv@rf@line
  \expandafter\bxpv@rf@parse\expandafter{\bxpv@rf@line}%
  \ifeof\@inputcheck
    \chardef\bxpv@rf@cont\z@
  \fi
  \ifnum\bxpv@rf@cont>\z@
    \expandafter\bxpv@read@file@b
  \fi
}

%% \bxpv@read@file@finish
\@onlypreamble\bxpv@read@file@finish
\def\bxpv@read@file@finish{%
  \chardef\bxpv@rf@cont\z@
}

%--------------------------------------- simple cache system
% - \bxpv@cache@xxx can be invoked only in \AtBeginDocument.
% - \bxpv@cache@finalize must be called last.

%% \bxpv@g@value
% The return variable for fetchers.
\@onlypreamble\bxpv@g@value
\let\bxpv@g@value\@undefined

%% \bxpv@cache@fetch{<key>}
\@onlypreamble\bxpv@cache@fetch
\def\bxpv@cache@fetch#1{%
  \begingroup
    \expandafter\ifx\csname bxpv@cache@@#1\endcsname\relax
      \global\let\bxpv@g@value\@empty
      \@nameuse{bxpv@cache@get@@#1}%
      \bxpv@cache@store{#1}{\bxpv@g@value}%
      \bxDebug{cache-fetch:#1=\@nameuse{bxpv@cache@@#1}}%
    \fi
  \endgroup
}

%% \bxpv@cache@store{<key>}{<value>}
\def\bxpv@cache@store#1#2{%
  \expandafter\ifx\csname bxpv@cache@@#1\endcsname\relax
    \expandafter\xdef\csname bxpv@cache@@#1\endcsname{#2}%
    \g@addto@macro\bxpv@cache@keylist{{#1}}%
  \fi
}
\@onlypreamble\bxpv@cache@keylist
\let\bxpv@cache@keylist\@empty

%% \bxpv@cache@finalize
\@onlypreamble\bxpv@cache@finalize
\def\bxpv@cache@finalize{%
  \if@filesw
    \ifx\bxpv@cache@keylist\@empty\else
      \immediate\write\@auxout{%
        \string\providecommand\string\bxpv@cache@store[2]{}}%
    \fi
    \def\bxpv@x{\@tfor\bxpv@x:=}%
    \expandafter\bxpv@x\bxpv@cache@keylist\do{%
      \immediate\write\@auxout{%
        \string\bxpv@cache@store{\bxpv@x}{\@nameuse{bxpv@cache@@\bxpv@x}}}}%
  \fi
  \global\let\bxpv@cache@store\@gobbletwo % for end-document clear-up
}

%--------------------------------------- start-up

\ifx t\bxUseDebug
  \typeout{**bxpdfver-----------%
    ^^Jdrvtype=\meaning\bxpv@drv@type
    ^^Jdrvname=\meaning\bxpv@drv@name}
  \AtBeginDocument{%
    \def\do#1=#2{\ifx#2\@undefined\else
      ^^J#1=\the#2 [\meaning#2]%
    \fi}%
    \def\next#1{\expandafter\meaning\csname if#1\endcsname}%
    \typeout{**bxpdfver-----------%
      ^^JMinorVersion=\meaning\bxpdfverMinorVersion
      ^^JMajorVersion=\meaning\bxpdfverMajorVersion
      ^^JCompressionSuppressed=\next{bxpdfverCompressionSuppressed}%
      ^^JObjCompressionSuppressed=\next{bxpdfverObjCompressionSuppressed}%
      ^^JDecimalDigits=\meaning\bxpdfverDecimalDigits
      ^^JPkResolution=\meaning\bxpdfverPkResolution
      \do minorversion=\bxpv@@minorversion
      \do majorversion=\bxpv@@majorversion
      \do compresslevel=\bxpv@@compresslevel
      \do objcompresslevel=\bxpv@@objcompresslevel
      \do decimaldigits=\bxpv@@decimaldigits
      \do pkresolution=\bxpv@@pkresolution
      ^^JCvalue=\meaning\bxpv@C@value
    }%
  }
\fi

%% Applies the setting specified by package options
\ifx\bxpv@version\relax\else
  \setpdfversion{\bxpv@version}
\fi
\if t\bxpv@compress\else
  \suppresspdfcompression
\fi
\if t\bxpv@obj@compress\else
  \suppresspdfobjcompression
\fi
\if t\bxpv@new@dvipdfmx
  \bxpv@cache@store{dvipdfmxver}{99999999}
\fi

%--------------------------------------- all done
\endinput
%% EOF