%%
%% This is file `expkv-pop.tex',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% expkv-pop.dtx  (with options: `tex')
%% 
%% ----------------------------------------------------------------
%% expkv-bundle -- an expandable key=val implementation and friends
%% E-mail: jspratte@yahoo.de
%% Released under the LaTeX Project Public License v1.3c or later
%% See http://www.latex-project.org/lppl.txt
%% ----------------------------------------------------------------
%% 
%% Copyright (C) 2020-2023 Jonathan P. Spratte
%% 
%% This  work may be  distributed and/or  modified under  the conditions  of the
%% LaTeX Project Public License (LPPL),  either version 1.3c  of this license or
%% (at your option) any later version.  The latest version of this license is in
%% the file:
%% 
%%   http://www.latex-project.org/lppl.txt
%% 
%% This work is "maintained" (as per LPPL maintenance status) by
%%   Jonathan P. Spratte.
%% 
%% This work consists of the files  expkv-bundle.ins
%%                                  expkv.dtx
%%                                  expkv-cs.dtx
%%                                  expkv-def.dtx
%%                                  expkv-opt.dtx
%%                                  expkv-pop.dtx
%% and the derived files            expkv.sty
%%                                  expkv.tex
%%                                  t-expkv.tex
%%                                  expkv-cs.sty
%%                                  expkv-cs.tex
%%                                  t-expkv-cs.tex
%%                                  expkv-def.sty
%%                                  expkv-def.tex
%%                                  t-expkv-def.tex
%%                                  expkv-opt.sty
%%                                  expkv-pop.sty
%%                                  expkv-pop.tex
%%                                  t-expkv-pop.tex
%% 
%% as well as any documentation files shipped with it.
%% 
\input expkv
\expandafter\ifx\csname ekvpVersion\endcsname\relax
\else
  \expandafter\endinput
\fi
\def\ekvpVersion{1.0}
\def\ekvpDate{2023-01-23}
\csname ekvp@tmp\endcsname
\expandafter\chardef\csname ekvp@tmp\endcsname=\catcode`\@
\catcode`\@=11
\long\def\ekvpParse#1#2%
  {%
    \ekv@unexpanded\ekv@expanded
      {{\expandafter\ekvpParse@a\detokenize{#1}\ekv@mark{#2}}}%
  }
\def\ekvpParse@a#1\ekv@mark
  {%
    \ekv@ifdefined{ekvp@@p@#1}%
      {\expandafter\ekvpParse@b\csname ekvp@@p@#1\endcsname}%
      {\ekvp@err@unknownparser{#1}\@gobble}%
  }
\def\ekvpParse@b#1%
  {%
    \ekv@ifdefined{#1{ppa}}%
      {%
        \expandafter\ekvpParse@c\expandafter
          {\expandafter#1\csname#1{ppa}\endcsname}%
      }%
      {\ekvpParse@c{#1{}}}%
  }
\def\ekvpParse@c#1#2#3{#2#3}
\ekv@expargtwice{\long\def\ekvpParse@c#1#2}%
  {\expandafter\ekvpParse@c\ekvparse{\ekvp@k#1}{\ekvp@p#1}{#2}}
\long\def\ekvpParse@unsafe#1#2#3{\ekv@unexpanded\ekv@expanded{{#2#3}}}
\ekv@expargtwice{\long\def\ekvpParse@unsafe@auto#1#2#3}
  {\expandafter\ekvpParse@unsafe\ekvparse{\ekvp@k#1#2}{\ekvp@p#1#2}{#3}}
\ekv@expargtwice{\long\def\ekvpParse@unsafe#1#2}%
  {\expandafter\ekvpParse@unsafe\ekvparse{\ekvp@k#1{}}{\ekvp@p#1{}}{#2}}
\def\ekvp@k#1{\csname #1k\endcsname#1}
\long\def\ekvp@ifspace#1%
  {%
    \ekvp@ifspace@#1 \ekv@ifempty@B\ekv@ifempty@false
      \ekv@ifempty@A\ekv@ifempty@B\@firstoftwo
  }
\long\def\ekvp@ifspace@#1 % keep this space
  {\ekv@ifempty@\ekv@ifempty@A}
\ekv@exparg{\long\def\ekvp@prefix#1}%
  {%
    \ekvp@ifspace{#1}%
      {\ekvp@prefix@a#1\ekv@stop}%
      {\ekvp@noprefix{#1}}%
  }
\ekv@exparg{\long\def\ekvp@p#1#2#3}{\ekvp@prefix{#3}#1{#2}{#3}}
\long\def\ekvp@prefix@a#1 % keep this space
  {\expandafter\ekvp@prefix@b\detokenize{#1}\ekv@mark{#1}}
\ekv@exparg{\long\def\ekvp@prefix@b#1\ekv@mark#2#3\ekv@stop#4}%
  {%
    \ekv@ifdefined{#4{pt}@#1}
      {\expandafter\ekvp@prefix@pt\csname #4{pt}@#1\endcsname{#1}}%
      {%
        \ekv@ifdefined{#4{pp}@#1}%
          {\expandafter\ekvp@prefix@pp\csname #4{pp}@#1\endcsname}%
          {\@firstoftwo{\ekvp@noprefix{#2 #3}}}%
      }%
      {#3}#4%
  }
\long\def\ekvp@prefix@pt#1#2#3#4#5#6#7%
  {%
    \ekvp@prefix@pt@{#2}{#3}{#6}#5{\@firstoftwo#1}{#7}\ekvpEOT
    \ekv@unexpanded{\ekvpEOA{#6}}%
  }
\long\def\ekvp@prefix@pt@#1#2#3#4{#4{#1}{#2}{#3}}
\ekv@exparg{\long\def\ekvp@prefix@pp#1#2#3#4}{\ekvp@prefix{#2}#3{#4#1}}
\long\def\ekvp@noprefix#1#2%
  {%
    \ekv@ifdefined{#2{pn}}
      {\expandafter\ekvp@prefix@pt\csname #2{pn}\endcsname{}{#1}}
      \ekvp@err@missingtype
      #2%
  }
\protected\long\def\ekvpNewParser#1%
  {\expandafter\ekvpNewParser@\detokenize{#1}\ekv@mark}
\protected\def\ekvpNewParser@#1\ekv@mark
  {%
    \ekv@ifdefined{ekvp@@p@#1}%
      {\ekvp@errm{Parser `#1' already defined}}%
      {%
        \expandafter\def\csname ekvp@@p@#1\endcsname##1{ekvp@@##1@#1}
        \expandafter
        \let\csname\csname ekvp@@p@#1\endcsname k\endcsname\ekvp@k@default
      }%
  }
\protected\long\def\ekvpValueAlwaysRequired#1%
  {\ekvp@parser@def{#1}\ekvpValueAlwaysRequired@{}}
\protected\def\ekvpValueAlwaysRequired@#1%
  {\expandafter\let\csname#1k\endcsname\ekvp@err@noval}
\protected\long\def\ekvpDefNoValue#1%
  {\ekvp@parser@def{#1}\ekvpDefNoValue@\@gobble}
\protected\long\def\ekvpDefNoValue@#1#2%
  {%
    \def\ekvp@tmp##1{\ekv@unexpanded{#2}}%
    \ekv@exparg{\long\expandafter\def\csname#1k\endcsname##1##2##3}%
      {\ekvp@tmp{##3}}%
  }
\protected\long\def\ekvpUseNoValueMarker#1%
  {\ekvp@parser@def{#1}\ekvpUseNoValueMarker@\@gobble}
\protected\long\def\ekvpUseNoValueMarker@#1#2%
  {%
    \long\expandafter\edef\csname#1k\endcsname##1##2##3%
      {\ekv@unexpanded{\ekvp@p}##1{##2}{##3}{\ekv@unexpanded{#2}}}%
  }
\protected\long\def\ekvpDefNoValuePrefix#1%
  {\ekvp@parser@def{#1}\ekvpDefNoValuePrefix@\@gobbletwo}
\protected\def\ekvpDefNoValuePrefix@#1%
  {\expandafter\ekvpDefNoValuePrefix@@\csname#1{ppn}\endcsname#1}
\protected\long\def\ekvpDefNoValuePrefix@@#1#2%
  {%
    \long\def#1\ekvp@p##1##2##3%
      {%
        \ekv@unexpanded{\ekvp@p}%
          ####1{####2\ekv@unexpanded{#1}}{####3}{\ekv@unexpanded{##3}}%
      }%
    \long\expandafter\edef\csname#2k\endcsname##1##2##3%
      {\expandafter\expandafter\expandafter#1\csname#2k\endcsname{}{}{}}%
    \ekvp@parser@def@prefix#1%
  }
\protected\long\def\ekvpDefAutoPrefix#1%
  {\ekvp@parser@def{#1}\ekvpDefAutoPrefix@\@gobbletwo}
\protected\long\def\ekvpDefAutoPrefix@#1%
  {\expandafter\ekvp@parser@def@prefix\csname#1{ppa}\endcsname}
\long\def\ekvp@parser@def#1%
  {\expandafter\ekvp@parser@def@\detokenize{#1}\ekv@mark}
\def\ekvp@parser@def@#1\ekv@mark#2#3%
  {%
    \ekv@ifdefined{ekvp@@p@#1}%
      {\ekv@exparg{#2}{\csname ekvp@@p@#1\endcsname}}%
      {\ekvp@errm{Parser `#1' not defined}#3}%
  }
\protected\long\def\ekvpDefPrefix#1%
  {\ekvp@parser@def{#1}\ekvpDefPrefix@\@gobblethree}
\protected\long\def\ekvpDefPrefix@#1#2%
  {\expandafter\ekvp@parser@def@prefix\csname#1{pp}@\detokenize{#2}\endcsname}
\protected\long\def\ekvp@parser@def@prefix#1#2#3%
  {%
    \def#1##1##2##3{#2#3}%
    \long\def#1##1##2##3##4##5\ekvpEOT
      {\ekv@unexpanded{#2}##4{##1}{##2}{##3}##5\ekvpEOT\ekv@unexpanded{#3}}%
  }
\ekv@exparg{\protected\long\def\ekvpDefPrefixLet#1#2#3#4#5}%
  {\ekvpDefPrefix{#1}{#2}{\ekvpProtect{\let#3= #4}}{\ekvpProtect{\let#3= #5}}}
\ekv@exparg{\protected\long\def\ekvpDefPrefixStore#1#2#3#4#5}%
  {%
    \ekvpDefPrefix{#1}{#2}%
      {\ekvpProtect{\edef#3{\ekv@unexpanded{#4}}}}%
      {\ekvpProtect{\edef#3{\ekv@unexpanded{#5}}}}%
  }
\protected\long\def\ekvpDefType#1{\ekvp@parser@def{#1}\ekvpDefType@\@gobbletwo}
\protected\long\def\ekvpDefType@#1#2%
  {\ekvpDefType@NoType{#1{pt}@\detokenize{#2}}}%
\protected\long\def\ekvpDefNoType#1{\ekvp@parser@def{#1}\ekvpDefNoType@\@gobble}
\protected\long\def\ekvpDefNoType@#1{\ekvpDefType@NoType{#1{pn}}}
\protected\long\def\ekvpDefType@NoType#1#2%
  {%
    \long\expandafter\def\csname#1\endcsname##1##2##3\ekvpEOT
      {\ekv@unexpanded{\ekvpEOP{##2}#2\ekvpEOT{##2}}}%
  }%
\protected\long\def\ekvpLet#1#2#3{\ekvoptarg{\ekvpLet@a{#1}{#2}{#3}}{#1}}
\protected\long\def\ekvpLet@a#1%
  {\ekvp@parser@def{#1}\ekvpLet@b{\@firstoftwo\@gobblethree}}
\protected\long\def\ekvpLet@b#1#2#3#4%
  {\ekvp@parser@def{#4}\ekvpLet@c{\@firstoftwo\@gobblethree}#1{#2}{#3}}
\protected\long\def\ekvpLet@c#1#2#3%
  {%
    \ekv@ifdefined{ekvpLet@@\detokenize{#3}}%
      {\expandafter\ekvpLet@d\csname ekvpLet@@\detokenize{#3}\endcsname{#1}{#2}}%
      {\ekvp@errm{unknown type \detokenize{#3}}\@gobbletwo}%
  }
\protected\long\def\ekvpLet@d#1#2#3#4#5%
  {%
    \ekv@ifdefined{#2{#1}@\detokenize{#5}}%
      {%
        \expandafter\let
          \csname#3{#1}@\detokenize{#4}\expandafter\endcsname
          \csname#2{#1}@\detokenize{#5}\endcsname
      }%
      {\ekvp@errm{Undefined prefix/type \detokenize{#5} can't be copied}}%
  }
\def\ekvpLet@@prefix{pp}
\def\ekvpLet@@type{pt}
\ekv@ifdefined{c_novalue_tl}
  {\expandafter\let\expandafter\ekvp@novalflag\csname c_novalue_tl\endcsname}
  {%
    \begingroup
    \lccode`\Z=`\-
    \lccode`\:=`\-
    \lccode`\N=\z@
    \lccode`\V=\z@
    \lowercase{\endgroup\def\ekvp@novalflag{ZNoValue:}}%
  }
\def\ekvpIfNoVal#1%
  {%
    \long\def\ekvpIfNoVal##1%
      {%
        \ekvp@ifnoval{}##1{}?!#1??!\ekv@ifempty@B\ekv@ifempty@true
          \ekv@ifempty@A\ekv@ifempty@B\@secondoftwo
      }%
    \long\def\ekvp@ifnoval##1#1##2?##3?!{\ekv@ifempty@\ekv@ifempty@A##1##2}%
    \long\def\ekvp@k@default##1##2##3{\ekvp@p##1{##2}{##3}{#1}}%
  }
\expandafter\ekvpIfNoVal\expandafter{\ekvp@novalflag}
\let\ekvp@novalflag\ekvp@undefined
\def\ekvpAssertIf{\romannumeral\ekv@alignsafe\ekvoptarg{\ekvpAssertIf@{}}{EOT}}
\def\ekvpAssertIfNot
  {\romannumeral\ekv@alignsafe\ekvoptarg{\ekvpAssertIf@\else}{EOT}}
\long\def\ekvpAssertIf@#1#2#3%
  {%
    #3#1\ekvpAssertIf@good\fi
    \ekvpAssert@notgood{#2}%
  }
\long\def\ekvpAssertIf@good\fi\ekvpAssert@notgood#1#2%
  {\fi\ekv@endalignsafe\ekv@zero}
\long\def\ekvpAssert@notgood#1%
  {%
    \ekv@ifdefined{ekvpAssert@@#1}%
      {\csname ekvpAssert@@#1\endcsname}%
      {\ekvp@err@unknownmarker{#1}\ekvpAssert@@EOA}%
  }
\def\ekvpAssertTF{\ekvoptarg{\ekvpAssertTF@{}}{EOT}}
\def\ekvpAssertTFNot{\ekvoptarg{\ekvpAssertTF@{\@secondoftwo\@firstoftwo}}{EOT}}
\long\def\ekvpAssertTF@#1#2#3%
  {%
    \ekv@alignsafe
    #3#1%
      {\ekv@endalignsafe\@gobble}%
      {\romannumeral\ekvpAssert@notgood{#2}}%
  }
\ekv@exparg{\def\ekvpAssert@further#1#2#3}%
  {\ekvoptarg{\ekvpAssert@further{#1}{#2}{#3}}{EOT}}
\ekv@exparg{\def\ekvpAssertValue}%
  {\ekvpAssert@further{\@secondoftwo\@firstoftwo}{\ekvpIfNoVal}{missing value}}
\ekv@exparg{\def\ekvpAssertNoValue}%
  {\ekvpAssert@further{}{\ekvpIfNoVal}{superfluous value}}
\ekv@exparg{\def\ekvpAssertOneValue}%
  {\ekvpAssert@further{}{\ekvp@assert@num@args\@gobble}{argument count != 1}}
\ekv@exparg{\def\ekvpAssertTwoValues}%
  {\ekvpAssert@further{}{\ekvp@assert@num@args\@gobbletwo}{argument count != 2}}
\long\def\ekvp@assert@num@args#1#2%
  {%
    \expandafter\ekv@ifempty@\expandafter\ekv@ifempty@A#1#2\ekv@ifempty@B
      \ekv@ifempty@true\ekv@ifempty@A\ekv@ifempty@B\@secondoftwo
  }
\long\def\ekvpAssert@further#1#2#3#4#5{\ekvpAssertTF@{#1}{#4}{#2{#5}}{#3}}
\def\ekvpAssert@@EOA#1#2%
  {\long\def#1##1##2#2##3{\ekvp@err{##1 at `##3'}\ekv@endalignsafe\ekv@zero}}
\ekvpAssert@@EOA\ekvpAssert@@EOP\ekvpEOP
\ekvpAssert@@EOA\ekvpAssert@@EOT\ekvpEOT
\ekvpAssert@@EOA\ekvpAssert@@EOA\ekvpEOA
\long\def\ekvpGobbleP#1\ekvpEOP#2{}
\long\def\ekvpGobbleT#1\ekvpEOT#2{}
\long\def\ekvpGobbleA#1\ekvpEOA#2{}
\let\ekvpEOP\@gobble
\let\ekvpEOT\@gobble
\let\ekvpEOA\@gobble
\def\ekvpProtect{\ekvpProtect@\ekvpProtect@@}
\protected\long\def\ekvpProtect@\ekvpProtect@@#1{#1}
\long\def\ekvpProtect@@#1{\ekv@unexpanded{\ekvpProtect@@{#1}}}
\protected\long\def\ekvp@errm#1{\errmessage{expkv-pop Error: #1}}
\ekv@exparg{\long\def\ekvp@err#1}{\ekverr{expkv-pop}{#1}}
\def\ekvp@err@unknownparser#1{\ekvp@err{unknown parser `#1'}}
\long\def\ekvp@err@noval#1#2#3{\ekvp@err{missing value for `#3'}}
\long\def\ekvp@err@missingtype#1#2#3#4{\ekvp@err{missing type in `#3'}}
\long\def\ekvp@err@unknownmarker#1{\ekvp@err{unknown marker `#1'}}
\let\ekvp@prefix\ekvp@undefined
\catcode`\@=\ekvp@tmp
%% 
%%
%% End of file `expkv-pop.tex'.