%%
%% This is file `datatool.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% datatool.dtx  (with options: `datatool.sty,package')
%% 
%%  datatool.dtx
%%  Copyright 2016 Nicola Talbot
%% 
%%  This work may be distributed and/or modified under the
%%  conditions of the LaTeX Project Public License, either version 1.3
%%  of this license of (at your option) any later version.
%%  The latest version of this license is in
%%    http://www.latex-project.org/lppl.txt
%%  and version 1.3 or later is part of all distributions of LaTeX
%%  version 2005/12/01 or later.
%% 
%%  This work has the LPPL maintenance status `maintained'.
%% 
%%  The Current Maintainer of this work is Nicola Talbot.
%% 
%%  This work consists of the files datatool.dtx and datatool.ins and the derived files datatool-base.sty, datatool-fp.sty, datatool-pgfmath.sty, datatool.sty, datagidx.sty, databib.sty, databar.sty, datapie.sty, dataplot.sty, person.sty, databib.bst.
%% 
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%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \<
%%   Equals        \=     Greater than  \>     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
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}
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    \db@key@id@w ##2\db@key@id@end@% key
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    \db@plist@elt@end@% end of block
    ##5\q@nil{\def#1{##2}}%
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    \db@header@id@w \db@header@id@end@% header
    \db@col@id@w #3\db@col@id@end@% index
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    \q@nil
}
\def\DTLunsettype{}
\def\DTLstringtype{0}
\def\DTLinttype{1}
\def\DTLrealtype{2}
\def\DTLcurrencytype{3}
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}
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  {%
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  }%
}
\newcommand*{\@sdtlgetdatatype}[3]{%
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   {\dtlcolumnindex{#2}{#3}}}%
  \@dtl@dogetdata
}
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      \db@key@id@w ##2\db@key@id@end@% key id
      \db@type@id@w ##3\db@type@id@end@% data type
      \db@header@id@w ##4\db@header@id@end@% header
     \db@col@id@w #3\db@col@id@end@% column index
    \db@plist@elt@end@% end of key block
    ##5% stuff afterwards
    \q@nil{\def#1{##3}}%
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}
\newcommand*{\@dtl@getprops}[7]{%
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     \db@col@id@w #7\db@col@id@end@% column index
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      \db@header@id@w ##4\db@header@id@end@% header
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    \q@nil{%
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      #4={##1}% before stuff
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}
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\newtoks\@dtl@colhead
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   \@ifstar\@sDTLaddcolumn\@DTLaddcolumn
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    {\PackageError{datatool}{Can't add new column to database `#1':
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}
\newcommand{\s@DTLaddcolumn}[2]{%
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}
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    }%
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  {%
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    {%
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    }%
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  {%
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  }%
}
\newcommand*{\@sDTLsetheader}[3]{%
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}
\newcommand*{\@dtl@setheaderforindex}[3]{%
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    {\noexpand\@dtl@colhead}{\noexpand\@dtl@before}%
    {\noexpand\@dtl@after}{\the\csname dtlkeys@#1\endcsname}%
    {\number#2}}%
  \@dtl@dogetprops
  \@dtl@colhead={#3}%
  \edef\@dtl@colnum{\number#2}\relax
  \toks@gconcat@middle@cx{dtlkeys@#1}%
  {\@dtl@before}%
  {%
    \noexpand\db@plist@elt@w% start of block
      \noexpand\db@col@id@w \@dtl@colnum
        \noexpand\db@col@id@end@% index
      \noexpand\db@key@id@w \@dtl@key\noexpand\db@key@id@end@% key
      \noexpand\db@type@id@w \@dtl@type
        \noexpand\db@type@id@end@% data type
      \noexpand\db@header@id@w \the\@dtl@colhead
        \noexpand\db@header@id@end@% header
      \noexpand\db@col@id@w \@dtl@colnum
        \noexpand\db@col@id@end@% index
    \noexpand\db@plist@elt@end@% end of block
  }%
  {\@dtl@after}%
}
\newcommand*{\dtlexpandnewvalue}{%
  \def\@dtl@setnewvalue##1{\protected@edef\@dtl@tmp{##1}%
  \expandafter\@dtl@toks\expandafter{\@dtl@tmp}}%
}
\newcommand*{\dtlnoexpandnewvalue}{%
  \def\@dtl@setnewvalue##1{\@dtl@toks{##1}}%
}
\dtlnoexpandnewvalue
\newcommand{\DTLnewdbentry}{%
   \@ifstar\@sDTLnewdbentry\@DTLnewdbentry
}
\newcommand{\@DTLnewdbentry}[3]{%
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    {\@sDTLnewdbentry{#1}{#2}{#3}}%
    {\PackageError{datatool}{Can't add new entry to database `#1':
      database doesn't exist}{}}%
}
\newcommand*{\@sDTLnewdbentry}[3]{%
  \@dtl@updatekeys{#1}{#2}{#3}%
  \expandafter\dtlcolumnnum\expandafter
    =\dtlcolumnindex{#1}{#2}\relax
  \edef\dtl@dogetrow{\noexpand\dtlgetrow{#1}%
    {\number\csname dtlrows@#1\endcsname}}%
  \dtl@dogetrow
  \edef\dtl@dogetentry{\noexpand\dtlgetentryfromcurrentrow
     {\noexpand\dtl@entry}{\number\dtlcolumnnum}%
  }%
  \dtl@dogetentry
  \ifx\dtl@entry\dtlnovalue
    \@dtl@setnewvalue{#3}%
    \toks@gconcat@middle@cx{dtldb@#1}%
    {\dtlbeforerow}%
    {%
      \noexpand\db@row@elt@w%
      \noexpand\db@row@id@w \number\csname dtlrows@#1\endcsname
        \noexpand\db@row@id@end@%
      \the\dtlcurrentrow
      \noexpand\db@col@id@w \number\dtlcolumnnum
        \noexpand\db@col@id@end@%
          \noexpand\db@col@elt@w \the\@dtl@toks
            \noexpand\db@col@elt@end@%
      \noexpand\db@col@id@w \number\dtlcolumnnum
        \noexpand\db@col@id@end@%
      \noexpand\db@row@id@w \number\csname dtlrows@#1\endcsname
        \noexpand\db@row@id@end@%
      \noexpand\db@row@elt@end@%
    }%
    {\dtlafterrow}%
    \dtl@message{Added #2\space -> #3\space to database `#1'}%
  \else
    \PackageError{datatool}{Can't add entry with ID `#2' to
      current row of database `#1'}{There is already an entry with
      this ID in the current row}%
  \fi
}
\newcommand{\DTLifdbexists}[3]{%
  \@ifundefined{dtldb@#1}{#3}{#2}}
\newcommand*{\DTLassign}[3]{%
  \DTLifdbexists{#1}
  {%
    {%
      \dtlgetrow{#1}{#2}%
    \@dtl@assign{#3}{#1}%
    }%
  }%
  {%
    \PackageError{datatool}{Database `#1' doesn't exist}{}%
  }%
}
\newcommand*{\DTLassignfirstmatch}[4]{%
  \dtl@assignfirstmatch{#3}{#1}{#2}{#4}%
}
\newcommand*{\xDTLassignfirstmatch}[4]{%
  \protected@edef\@dtl@asg@value{\expandonce{#3}}%
  \expandafter\dtl@assignfirstmatch\expandafter
   {\@dtl@asg@value}{#1}{#2}{#4}%
}
\newcommand*{\dtl@assignfirstmatch}[4]{%
  \DTLifdbexists{#2}%
  {%
    {%
      \dtlgetrowindex{\dtl@asg@rowidx}{#2}{\dtlcolumnindex{#2}{#3}}{#1}%
      \ifx\dtl@asg@rowidx\dtlnovalue
        \PackageError{datatool}{No match found for
          \string\DTLassignfirstmatch{#2}{#3}{#1}{#4}}{}%
      \else
        \dtlgetrow{#2}{\dtl@asg@rowidx}%
        \@dtl@assign{#4}{#2}%
      \fi
    }%
  }%
  {%
    \PackageError{datatool}{Data base `#2' doesn't exist}{}%
  }%
}
\newcommand*{\@dtl@assign}[2]{%
  \ifstrempty{#1}{}%
  {%
    \@dtl@assigncmd#1,\@nil\@@{#2}%
  }%
}
\def\@dtl@assigncmd#1#2=#3,#4\@@#5{%
  \edef\@dtl@dbname{#5}%
  \@sDTLifhaskey{#5}{#3}%
  {%
    \edef\@dtl@dogetentry{%
      \noexpand\dtlgetentryfromcurrentrow
        {\noexpand#1}{\dtlcolumnindex{#5}{#3}}}%
    \@dtl@dogetentry
    \ifdefequal{#1}{\dtlnovalue}%
    {%
      \@@dtl@setnull{#1}{#3}%
    }%
    {}%
    \global\let#1=#1\relax
  }%
  {%
    \PackageError{datatool}{Can't assign \string#1\space: there
     is no key `#3' in data base `#5'}{}%
    \global\let#1\DTLstringnull
  }%
  \def\dtl@tmp{#4}%
  \ifx\@nnil\dtl@tmp
    \let\@dtl@next\@dtl@assigncmdnoop
  \else
    \let\@dtl@next\@dtl@assigncmd
  \fi
  \@dtl@next#4\@@{#5}%
}
\def\@dtl@assigncmdnoop#1\@@#2{}
\newcommand*{\@dtl@setnull}[2]{%
  \@sDTLifhaskey{\@dtl@dbname}{#2}%
  {%
    \@@dtl@setnull{#1}{#2}%
  }%
  {%
    \global\let#1=\DTLstringnull
  }%
}
\newcommand*{\@@dtl@setnull}[2]{%
  \@sdtlgetdatatype{\@dtl@type}{\@dtl@dbname}{#2}%
  \ifnum0\@dtl@type=0\relax
    \global\let#1=\DTLstringnull
  \else
    \global\let#1=\DTLnumbernull
  \fi
}
\newcommand*{\DTLstringnull}{\@dtlstringnull}
\newcommand*{\@dtlstringnull}{NULL}
\newcommand*{\DTLnumbernull}{\@dtlnumbernull}
\newcommand*{\@dtlnumbernull}{0}
\newcommand*{\DTLifnull}[3]{%
  \ifx#1\dtlnovalue
    #2%
  \else
    \ifx#1\DTLstringnull
      #2%
    \else
      \ifx#1\DTLnumbernull
        #2%
      \else
        #3%
      \fi
    \fi
  \fi
}
\newcommand*{\DTLifnullorempty}[3]{%
  \ifdefempty{#1}{#2}{\DTLifnull{#1}{#2}{#3}}%
}
\def\@dtlnovalue{Undefined Value}
\def\dtlnovalue{\@dtlnovalue}
\newcommand*{\DTLgetkeydata}{%
  \@ifstar\@sdtlgetkeydata\@dtlgetkeydata
}
\newcommand*{\@dtlgetkeydata}[5]{%
  \DTLifdbexists{#2}%
  {%
    \@sDTLifhaskey{#2}{#1}%
    {%
      \@sdtlgetkeydata{#1}{#2}{#3}{#4}{#5}%
    }%
    {%
      \PackageError{datatool}{Key `#1' not defined in database
        `#2'}{}%
    }%
  }%
  {%
    \PackageError{datatool}{Database `#2' doesn't exist}{}%
  }%
}
\newcommand*{\@sdtlgetkeydata}[5]{%
  \@sdtl@getcolumnindex{#3}{#2}{#1}%
  \edef\@dtl@dogetkeydata{\noexpand\@dtl@getprops
    {\noexpand\@dtl@key}{\noexpand#4}{\noexpand\@dtl@colhead}%
    {\noexpand\@dtl@before}{\noexpand\@dtl@after}%
    {\expandafter\the\csname dtlkeys@#2\endcsname}%
    {#3}}%
  \@dtl@dogetkeydata
  \edef#5{\the\@dtl@toks}%
}
\newcommand{\dtl@gathervalues}[3][key]{%
  \dtlforeachkey(\@dtl@key,\@dtl@col,\@dtl@type,\@dtl@head)\in{#2}\do
  {%
    \dtlgetentryfromrow{\@dtl@tmp}{\@dtl@col}{#3}%
    \ifx\@dtl@tmp\dtlnovalue
      \@dtl@setnull{\@dtl@tmp}{\@dtl@key}%
    \fi
    \expandafter\let\csname @dtl@#1@\@dtl@key\endcsname\@dtl@tmp
  }%
}
\newcommand{\dtl@g@gathervalues}[3][key]{%
  \dtlforeachkey(\@dtl@key,\@dtl@col,\@dtl@type,\@dtl@head)\in{#2}\do
  {%
    \dtlgetentryfromrow{\@dtl@tmp}{\@dtl@col}{#3}%
    \ifx\@dtl@tmp\dtlnovalue
      \@dtl@setnull{\@dtl@tmp}{\@dtl@key}%
    \fi
    \expandafter\global
      \expandafter\let\csname @dtl@#1@\@dtl@key\endcsname\@dtl@tmp
  }%
}
\newtoks\dtlcurrentrow
\newtoks\dtlbeforerow
\newtoks\dtlafterrow

\newcommand*{\dtlgetrow}[2]{%
  \dtlrownum=#2\relax
  \edef\dtldbname{#1}%
  \expandafter\toks@\expandafter=\csname dtldb@#1\endcsname
  \edef\@dtl@dogetrow{\noexpand\@dtlgetrow{\the\toks@}{\number#2}}%
  \@dtl@dogetrow
}
\newcommand{\edtlgetrowforvalue}[3]{%
  \protected@edef\@dtl@dogetrowforvalue{%
    \noexpand\dtlgetrowforvalue{#1}{#2}{#3}}%
  \@dtl@dogetrowforvalue
}
\newcommand{\DTLfetch}[4]{%
  \edtlgetrowforvalue{#1}{\dtlcolumnindex{#1}{#2}}{#3}%
  \dtlgetentryfromcurrentrow{\dtlcurrentvalue}{\dtlcolumnindex{#1}{#4}}%
  \dtlcurrentvalue
}
\newcommand*{\dtlgetrowforvalue}[3]{%
  \dtlgetrowindex{\dtl@rowidx}{#1}{#2}{#3}%
  \ifx\dtl@rowidx\dtlnovalue
    \PackageError{datatool}{No row found in database `#1' for
     column `\number#2' matching `#3'}{}%
  \else
    \dtlrownum=\dtl@rowidx\relax
    \edef\dtldbname{#1}%
    \expandafter\toks@\expandafter=\csname dtldb@#1\endcsname
    \edef\@dtl@dogetrow{\noexpand\@dtlgetrow{\the\toks@}{\dtl@rowidx}}%
    \@dtl@dogetrow
  \fi
}
\newcommand*{\@dtlgetrow}[2]{%
  \def\@dtl@getrow##1% before stuff
    \db@row@elt@w% start of the row
      \db@row@id@w #2\db@row@id@end@% row id
        ##2%
      \db@row@id@w #2\db@row@id@end@% row id
    \db@row@elt@end@% end of the row
        ##3% after stuff
    \q@nil{\dtlbeforerow={##1}\dtlcurrentrow={##2}\dtlafterrow={##3}}%
  \@dtl@getrow#1\q@nil
}
\newcommand*{\dtlrecombine}{%
   \toks@gconcat@middle@cx{dtldb@\dtldbname}%
   {\dtlbeforerow}%
   {%
      \noexpand\db@row@elt@w
        \noexpand\db@row@id@w
          \number\dtlrownum
        \noexpand\db@row@id@end@
         \the\dtlcurrentrow
        \noexpand\db@row@id@w
          \number\dtlrownum
        \noexpand\db@row@id@end@
      \noexpand\db@row@elt@end@
   }%
   {\dtlafterrow}%
}
\newcommand{\dtlrecombineomitcurrent}{%
  \dtl@decrementrows{\dtlafterrow}{\dtlrownum}
  \csname dtldb@\dtldbname\endcsname=\dtlbeforerow
  \toks@gput@right@cx{dtldb@\dtldbname}{\the\dtlafterrow}%
  \dtl@message{Removed row \number\dtlrownum\space in database
    `\dtldbname'}%
}
\newcommand*{\dtlsplitrow}[4]{%
  \def\@dtlsplitrow##1%before stuff
    \db@col@id@w #2\db@col@id@end@% column id
      ##2% unwanted stuff
    \db@col@id@w #2\db@col@id@end@% column id
    ##3% after stuff
    \q@nil{\def#3{##1}\def#4{##3}}%
   \@dtlsplitrow#1\q@nil
}
\newcommand*{\dtlreplaceentryincurrentrow}[2]{%
  \edef\@dtl@do@splitrow{\noexpand\dtlsplitrow
   {\the\dtlcurrentrow}%
   {\number#2}%
   {\noexpand\@dtl@before@cs}%
   {\noexpand\@dtl@after@cs}}%
  \@dtl@do@splitrow
  \toks@{#1}%
  \edef\@dtl@stuff{%
    \expandonce\@dtl@before@cs
      \noexpand\db@col@id@w \number#2\noexpand
        \noexpand\db@col@id@end@% column id
      \noexpand\db@col@elt@w
        \the\toks@
      \noexpand\db@col@elt@end@
      \noexpand\db@col@id@w \number#2\noexpand
        \noexpand\db@col@id@end@% column id
    \expandonce\@dtl@after@cs
  }%
  \expandafter\dtlcurrentrow\expandafter{\@dtl@stuff}%
  \@sdtlgetkeyforcolumn{\@dtl@key}{\dtldbname}{#2}%
  \@dtl@updatekeys{\dtldbname}{\@dtl@key}{#1}%
  \dtl@message{Updated \@dtl@key\space -> #1\space in database
    `\dtldbname'}%
}
\newcommand*{\dtlremoveentryincurrentrow}[1]{%
  \edef\@dtl@do@splitrow{\noexpand\dtlsplitrow
   {\the\dtlcurrentrow}%
   {\number#1}%
   {\noexpand\@dtl@before@cs}%
   {\noexpand\@dtl@after@cs}}%
  \@dtl@do@splitrow
  \edef\@dtl@stuff{%
    \expandonce\@dtl@before@cs
    \expandonce\@dtl@after@cs
  }%
  \expandafter\dtlcurrentrow\expandafter{\@dtl@stuff}%
  \dtl@message{Removed entry from column \number#1\space\space in database
    `\dtldbname'}%
}
\newcommand*{\dtlswapentriesincurrentrow}[2]{%
  \dtlgetentryfromcurrentrow{\@dtl@entryI}{#1}%
  \dtlgetentryfromcurrentrow{\@dtl@entryII}{#2}%
  \expandafter\dtlreplaceentryincurrentrow\expandafter
   {\@dtl@entryII}{#1}%
  \expandafter\dtlreplaceentryincurrentrow\expandafter
   {\@dtl@entryI}{#2}%
}
\newcommand*{\dtlgetentryfromcurrentrow}[2]{%
  \dtlgetentryfromrow{#1}{#2}{\dtlcurrentrow}%
}
\newcommand*{\dtlgetentryfromrow}[3]{%
  \edef\@dtl@do@getentry{\noexpand\dtl@getentryfromrow
    {\noexpand#1}{\number#2}{\the#3}}%
  \@dtl@do@getentry
}
\newcommand*{\dtl@getentryfromrow}[3]{%
  \def\dtl@dogetentry##1% before stuff
    \db@col@id@w #2\db@col@id@end@% Column id
      \db@col@elt@w ##2\db@col@elt@end@% Value
    \db@col@id@w #2\db@col@id@end@% Column id
    ##3% Remaining stuff
    \q@nil{\def#1{##2}}%
  \dtl@dogetentry#3%
    \db@col@id@w #2\db@col@id@end@%
      \db@col@elt@w \@dtlnovalue\db@col@elt@end@%
    \db@col@id@w #2\db@col@id@end@%
    \q@nil
}
\newcommand*{\dtlappendentrytocurrentrow}[2]{%
      \@dtl@updatekeys{\dtldbname}{#1}{#2}%
      \expandafter\dtlcolumnnum\expandafter
        =\dtlcolumnindex{\dtldbname}{#1}\relax
      \edef\dtl@dogetentry{\noexpand\dtlgetentryfromcurrentrow
        {\noexpand\dtl@entry}{\number\dtlcolumnnum}%
      }%
      \dtl@dogetentry
      \ifx\dtl@entry\dtlnovalue
        \protected@edef\@dtl@tmp{#2}%
        \expandafter\@dtl@toks\expandafter{\@dtl@tmp}%
        \toks@gput@right@cx{dtlcurrentrow}%
        {%
          \noexpand\db@col@id@w
            \number\dtlcolumnnum
          \noexpand\db@col@id@end@
          \noexpand\db@col@elt@w
            \the\@dtl@toks
          \noexpand\db@col@elt@end@
          \noexpand\db@col@id@w
             \number\dtlcolumnnum
          \noexpand\db@col@id@end@
        }%
         \dtl@message{Appended #1\space -> #2\space to database
           `\dtldbname'}%
      \else
        \PackageError{datatool}{Can't append entry to row:
          there is already an entry for key `#1' in this row}{}%
      \fi
}
\newcommand*{\dtlupdateentryincurrentrow}[2]{%
      \@dtl@updatekeys{\dtldbname}{#1}{#2}%
      \expandafter\dtlcolumnnum\expandafter
        =\dtlcolumnindex{\dtldbname}{#1}\relax
      \edef\dtl@dogetentry{\noexpand\dtlgetentryfromcurrentrow
        {\noexpand\dtl@entry}{\number\dtlcolumnnum}%
      }%
      \dtl@dogetentry
      \ifx\dtl@entry\dtlnovalue
        \protected@edef\@dtl@tmp{#2}%
        \expandafter\@dtl@toks\expandafter{\@dtl@tmp}%
        \toks@gput@right@cx{dtlcurrentrow}%
        {%
          \noexpand\db@col@id@w
            \number\dtlcolumnnum
          \noexpand\db@col@id@end@
          \noexpand\db@col@elt@w
            \the\@dtl@toks
          \noexpand\db@col@elt@end@
          \noexpand\db@col@id@w
             \number\dtlcolumnnum
          \noexpand\db@col@id@end@
        }%
         \dtl@message{Appended #1\space -> #2\space to database
           `\dtldbname'}%
      \else
        \toks@{#2}%
        \edef\do@dtlreplaceincurrentrow{%
           \noexpand\dtlreplaceentryincurrentrow{\the\toks@}{\number\dtlcolumnnum}%
        }%
        \do@dtlreplaceincurrentrow
      \fi
}
\newcommand*{\DTLgetvalue}[4]{%
  \edef\dtl@dogetvalue{\noexpand\dtl@getvalue{\noexpand#1}{#2}%
    {\number#3}{\number#4}}%
  \dtl@dogetvalue
}
\newcommand*{\dtl@getvalue}[4]{%
  \def\@dtl@getvalue ##1% stuff before row <r>
     \db@row@id@w #3\db@row@id@end@% row <r> id
        ##2% stuff in row <r> before column <c>
     \db@col@id@w #4\db@col@id@end@% column <c> id
       \db@col@elt@w ##3\db@col@elt@end@% value
     ##4% stuff after value
     \q@nil{\def#1{##3}}%
  \toks@=\csname dtldb@#2\endcsname
  \expandafter\@dtl@getvalue\the\toks@% contents of data base
     \db@row@id@w #3\db@row@id@end@%
       \db@col@id@w #4\db@col@id@end@%
         \db@col@elt@w \@dtlnovalue\db@col@elt@end@% undefined value
     \q@nil
  \ifx#1\dtlnovalue
    \PackageError{datatool}{There is no element at (row=#3,\space
      column=#4) in database `#2'}{}%
  \fi
}
\newcommand*{\DTLgetlocation}[4]{%
  \def\@dtl@getlocation##1% stuff before value
    \db@col@elt@w #4\db@col@elt@end@% value
    \db@col@id@w ##2\db@col@id@end@% column id
    ##3% stuff after this column
    \db@row@id@w ##4\db@row@id@end@% row id
    ##5% stuff after row
    \q@nil{\def#1{##4}\def#2{##2}}%
  \toks@=\csname dtldb@#3\endcsname
  \expandafter\@dtl@getlocation\the\toks@% contents of data base
    \db@col@elt@w #4\db@col@elt@end@% value
    \db@col@id@w \@dtlnovalue\db@col@id@end@% undefined column id
    \db@row@id@w \@dtlnovalue\db@row@id@end@% undefined row id
    \q@nil
  \ifx#1\dtlnovalue
    \PackageError{datatool}{There is no element `#4' in database `#3'}{}%
  \fi
}
\newcommand*{\DTLgetrowindex}[4]{%
  \toks@{#4}%
  \edef\dtl@dogetrowindex{\noexpand\@dtlgetrowindex{\noexpand#1}{#2}{\number#3}{\the\toks@}}%
  \dtl@dogetrowindex
  \ifx#1\dtlnovalue
    \PackageError{datatool}{There is no element `#4' for column
      \number#3\space in database `#2'}{}%
  \fi
}
\newcommand*{\dtlgetrowindex}[4]{%
  \toks@{#4}%
  \edef\dtl@dogetrowindex{\noexpand\@dtlgetrowindex{\noexpand#1}{#2}{\number#3}{\the\toks@}}%
  \dtl@dogetrowindex
}
\newcommand*{\@dtlgetrowindex}[4]{%
  \def\@dtl@getrowindex##1% stuff before value
    \db@col@elt@w #4\db@col@elt@end@% value
    \db@col@id@w #3\db@col@id@end@% column id
    ##2% stuff after this column
    \db@row@id@w ##3\db@row@id@end@% row id
    ##4% stuff after row
    \q@nil{\def#1{##3}}%
  \toks@=\csname dtldb@#2\endcsname
  \expandafter\@dtl@getrowindex\the\toks@% contents of data base
    \db@col@elt@w #4\db@col@elt@end@% value
    \db@col@id@w #3\db@col@id@end@% column id
    \db@row@id@w \@dtlnovalue\db@row@id@end@% undefined row id
    \q@nil
}

\long\def\@dtlforeachrow(#1,#2)\in#3\do#4{%
  \edef\dtl@tmp{\expandafter\the\csname dtldb@#3\endcsname}%
  \expandafter\@dtl@foreachrow\dtl@tmp
    \db@row@elt@w%
    \db@row@id@w \@nil\db@row@id@end@%
    \db@row@id@w \@nil\db@row@id@end@%
    \db@row@elt@end@%
    \@@{#1}{#2}{#4}\q@nil
}
\long\def\@dtl@foreachrow\db@row@elt@w%
\db@row@id@w #1\db@row@id@end@%
#2\db@row@id@w #3\db@row@id@end@%
\db@row@elt@end@#4\@@#5#6#7\q@nil{%
  \gdef#5{#1}%
  \gdef\@dtl@loopbody{#7}%
  \global\advance\@dtl@foreach@level by 1\relax
  \ifx#5\@nnil
    \expandafter\global\expandafter
      \let\csname @dtl@foreachnext\the\@dtl@foreach@level\endcsname
        =\@dtl@foreachnoop
  \else
    \gdef#6{#2}%
    \expandafter\let
      \csname @dtl@break@\the\@dtl@foreach@level\endcsname
      \dtlbreak
    \gdef\dtlbreak{\expandafter\global\expandafter
      \let\csname @dtl@foreachnext\the\@dtl@foreach@level\endcsname
        =\@dtl@foreachnoop}%
    \expandafter\global\expandafter
      \let\csname @dtl@foreachnext\the\@dtl@foreach@level\endcsname
        =\@dtl@foreachrow
    \@dtl@loopbody
    \expandafter\let\expandafter\dtlbreak
      \csname @dtl@break@\the\@dtl@foreach@level\endcsname
  \fi
  \expandafter\let\expandafter\@dtl@foreachnext
    \csname @dtl@foreachnext\the\@dtl@foreach@level\endcsname
  \global\advance\@dtl@foreach@level by -1\relax
  \@dtl@foreachnext#4\@@{#5}{#6}{#7}\q@nil
}
\long\def\@dtl@foreachnoop#1\@@#2\q@nil{}
\long\def\dtlforeachkey(#1,#2,#3,#4)\in#5\do#6{%
  \gdef\@dtl@loopbody{#6}%
  \edef\@dtl@keys{\expandafter\the\csname dtlkeys@#5\endcsname}%
  \expandafter\@dtl@foreachkey\@dtl@keys
    \db@plist@elt@w%
    \db@col@id@w -1\db@col@id@end@%
    \db@key@id@w \db@key@id@end@%
    \db@type@id@w \db@type@id@end@%
    \db@header@id@w \db@header@id@end@%
    \db@col@id@w -1\db@col@id@end@%
    \db@plist@elt@end@%
    \@@{\@dtl@updatefkcs{#1}{#2}{#3}{#4}}\q@nil
}
\newcommand*{\@dtl@updatefkcs}[8]{%
  \gdef#1{#5}%
  \gdef#2{#6}%
  \gdef#3{#7}%
  \gdef#4{#8}%
}
\long\def\@dtl@foreachkey\db@plist@elt@w%
\db@col@id@w #1\db@col@id@end@%
\db@key@id@w #2\db@key@id@end@%
\db@type@id@w #3\db@type@id@end@%
\db@header@id@w #4\db@header@id@end@%
\db@col@id@w #5\db@col@id@end@%
\db@plist@elt@end@#6\@@#7\q@nil{%
  \ifnum#1=-1\relax
    \let\@dtl@foreachnext\@dtl@foreachnoop
  \else
    #7{#2}{#1}{#3}{#4}%
    \global\advance\@dtl@foreach@level by 1\relax
    \expandafter\let
      \csname @dtl@break@\the\@dtl@foreach@level\endcsname
      \dtlbreak
    \gdef\dtlbreak{\expandafter\global\expandafter
      \let\csname @dtl@foreachnext\the\@dtl@foreach@level\endcsname
        =\@dtl@foreachnoop}%
    \expandafter\global\expandafter
      \let\csname @dtl@foreachnext\the\@dtl@foreach@level\endcsname
        =\@dtl@foreachkey
    \@dtl@loopbody
    \expandafter\let\expandafter\@dtl@foreachnext
      \csname @dtl@foreachnext\the\@dtl@foreach@level\endcsname
    \expandafter\let\expandafter\dtlbreak
      \csname @dtl@break@\the\@dtl@foreach@level\endcsname
    \global\advance\@dtl@foreach@level by -1\relax
  \fi
  \@dtl@foreachnext#6\@@{#7}\q@nil
}
\newcommand*{\dtlforcolumn}{\@ifstar\@sdtlforcolumn\@dtlforcolumn}
\newcommand{\@dtlforcolumn}[4]{%
  \DTLifdbexists{#2}%
  {%
    \@DTLifhaskey{#2}{#3}%
    {%
      \@sdtlforcolumn{#1}{#2}{#3}{#4}%
    }%
    {%
      \PackageError{datatool}{Database `#2' doesn't contain
        key `#3'}{}%
    }%
  }%
  {%
    \PackageError{datatool}{Database `#2' doesn't exist}{}%
  }%
}
\newcommand{\@sdtlforcolumn}[4]{%
    \toks@{#4}%
    \edef\@dtl@doforcol{\noexpand\dtl@forcolumn{\noexpand#1}%
      {\expandafter\the\csname dtldb@#2\endcsname}%
      {\dtlcolumnindex{#2}{#3}}{\the\toks@}%
    }%
    \@dtl@doforcol%
}
\newcommand*{\dtlforcolumnidx}{%
  \@ifstar\@sdtlforcolumnidx\@dtlforcolumnidx
}
\newcommand{\@dtlforcolumnidx}[4]{%
  \DTLifdbexists{#2}%
  {%
    \expandafter\ifnum\csname dtlcols@#2\endcsname<#3\relax
      \PackageError{datatool}{Column index \number#3\space out of
        bounds for database `#2'}{Database `#2' only has
        \expandafter\number\csname dtlcols@#2\endcsname\space
        columns}%
    \else
      \ifnum#3<1\relax
       \PackageError{datatool}{Column index \number#3\space out of
        bounds for database `#2'}{Indices start from 1}%
      \else
        \@sdtlforcolumnidx{#1}{#2}{#3}{#4}%
      \fi
    \fi
  }%
  {%
    \PackageError{datatool}{Database `#2' doesn't exist}{}%
  }%
}
\newcommand{\@sdtlforcolumnidx}[4]{%
    \toks@{#4}%
    \edef\@dtl@doforcol{\noexpand\dtl@forcolumn{\noexpand#1}%
      {\expandafter\the\csname dtldb@#2\endcsname}%
      {\number#3}{\the\toks@}%
    }%
    \@dtl@doforcol
}
\newcommand{\dtl@forcolumn}[4]{%
  \let\@dtl@oldbreak\dtlbreak
  \def\dtlbreak{\let\@dtl@forcolnext=\@dtl@forcolnoop}%
  \def\@dtl@forcolumn##1% before stuff
    \db@col@id@w #3\db@col@id@end@% column index
      \db@col@elt@w ##2\db@col@elt@end@% entry
    \db@col@id@w #3\db@col@id@end@% column index
    ##3% after stuff
    \q@nil{%
      \def#1{##2}% assign value to <cs>
      \ifx#1\@nnil
        \let\@dtl@forcolnext=\@dtl@forcolnoop
      \else
        #4%
        \let\@dtl@forcolnext=\@dtl@forcolumn
      \fi
      \@dtl@forcolnext##3\q@nil
    }%
  \@dtl@forcolumn#2%
   \db@col@id@w #3\db@col@id@end@%
     \db@col@elt@w \@nil\db@col@elt@end@%
   \db@col@id@w #3\db@col@id@end@\q@nil
  \let\dtlbreak\@dtl@oldbreak
}
\def\@dtl@forcolnoop#1\q@nil{}

\newcount\dtlforeachlevel
\newcounter{DTLrowi}
\newcounter{DTLrowii}
\newcounter{DTLrowiii}
\newcounter{DTLrow}
\def\theHDTLrow{\arabic{DTLrow}}
\def\theHDTLrowi{\theHDTLrow.\arabic{DTLrowi}}
\def\theHDTLrowii{\theHDTLrowi.\arabic{DTLrowii}}
\def\theHDTLrowiii{\theHDTLrowii.\arabic{DTLrowiii}}
\newcount\dtl@rowi
\newcount\dtl@rowii
\newcount\dtl@rowiii
\newtoks\@dtl@curi
\newtoks\@dtl@previ
\newtoks\@dtl@nexti
\newtoks\@dtl@curii
\newtoks\@dtl@previi
\newtoks\@dtl@nextii
\newtoks\@dtl@curiii
\newtoks\@dtl@previii
\newtoks\@dtl@nextiii
\newcommand*{\DTLsavelastrowcount}[1]{%
\ifnum\dtlforeachlevel>2\relax
  \def#1{0}%
\else
  \ifnum\dtlforeachlevel<0\relax
    \def#1{0}%
  \else
    \@dtl@tmpcount=\dtlforeachlevel
    \advance\@dtl@tmpcount by 1\relax
    \edef#1{\expandafter\number
      \csname c@DTLrow\romannumeral\@dtl@tmpcount\endcsname}%
  \fi
\fi}
\newenvironment{DTLenvforeach}[3][\boolean{true}]%
{%
  \def\@dtlenvforeach@args{[#1]{#2}{#3}}%
  \long@collect@body\@do@dtlenvforeach
}%
{}
\newcommand{\@do@dtlenvforeach}[1]{%
  \expandafter\@DTLforeach\@dtlenvforeach@args{#1}%
}
\newenvironment{DTLenvforeach*}[3][\boolean{true}]%
{%
  \def\s@dtlenvforeach@args{[#1]{#2}{#3}}%
  \long@collect@body\@do@sdtlenvforeach
}%
{}
\newcommand{\@do@sdtlenvforeach}[1]{%
  \expandafter\@sDTLforeach\s@dtlenvforeach@args{#1}%
}
\newcommand*{\DTLforeach}{\@ifstar\@sDTLforeach\@DTLforeach}
\newcommand{\@DTLforeach}[4][\boolean{true}]{%
  \DTLifdbexists{#2}%
  {%
    \refstepcounter{DTLrow}%
    \global\c@DTLrow=\c@DTLrow\relax
    \xdef\@dtl@dbname{#2}%
    \global\advance\dtlforeachlevel by 1\relax
    \ifnum\dtlforeachlevel>3\relax
      \PackageError{datatool}{\string\DTLforeach\space nested too
        deeply}{Only 3 levels are allowed}%
    \else
       \@DTLifdbempty{#2}%
       {}%
       {%
        \expandafter\global
          \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
            = 0\relax
        \expandafter\global\expandafter\let%
          \csname @dtl@iffirstrow\the\dtlforeachlevel\endcsname
          \DTLiffirstrow
        \gdef\DTLiffirstrow##1##2{%
          \expandafter\ifnum
           \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
           =1\relax
            ##1%
          \else
            ##2%
          \fi}%
        \expandafter\global\expandafter\let%
          \csname @dtl@iflastrow\the\dtlforeachlevel\endcsname
          \DTLiflastrow
        \gdef\DTLiflastrow##1##2{%
          \expandafter\ifnum
           \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
           =\csname dtlrows@#2\endcsname\relax
            ##1%
          \else
            ##2%
          \fi}%
        \expandafter\global\expandafter\let%
          \csname @dtl@ifoddrow\the\dtlforeachlevel\endcsname
          \DTLifoddrow
        \gdef\DTLifoddrow##1##2{%
          \expandafter\ifodd
           \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
            ##1%
          \else
            ##2%
          \fi}%
        \expandafter\global\expandafter\let
          \csname @dtl@dbname@\romannumeral\dtlforeachlevel\endcsname
            =\@dtl@dbname
        \expandafter\global\expandafter\let
          \csname @dtl@ro@\romannumeral\dtlforeachlevel\endcsname
            = 0\relax
        \dtlgforint
          \csname dtl@row\romannumeral\dtlforeachlevel\endcsname
          =1\to\csname dtlrows@#2\endcsname\step1\do
        {%
          \@dtl@tmpcount=
            \csname dtl@row\romannumeral\dtlforeachlevel\endcsname
          \edef\dtl@dogetrow{\noexpand\dtlgetrow{#2}%
            {\number\@dtl@tmpcount}}%
          \dtl@dogetrow
          \expandafter\global
            \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
              = \dtlcurrentrow
          \expandafter\global
            \csname @dtl@prev\romannumeral\dtlforeachlevel\endcsname
              = \dtlbeforerow
          \expandafter\global
            \csname @dtl@next\romannumeral\dtlforeachlevel\endcsname
              = \dtlafterrow
          \ifx\relax#3\relax
          \else
            \@dtl@assign{#3}{#2}%
          \fi
          \ifthenelse{#1}%
          {%
            \refstepcounter{DTLrow\romannumeral\dtlforeachlevel}%
            \expandafter\edef\expandafter\DTLcurrentindex%
              \expandafter{%
                 \arabic{DTLrow\romannumeral\dtlforeachlevel}}%
            #4%
            \edef\@dtl@tmp{\expandafter\the
              \csname @dtl@cur\romannumeral
                \dtlforeachlevel\endcsname}%
            \ifx\@dtl@tmp\@nnil
              \expandafter\dtl@decrementrows\expandafter
                 {\csname @dtl@prev\romannumeral
                    \dtlforeachlevel\endcsname
                 }{\csname dtl@row\romannumeral
                   \dtlforeachlevel\endcsname}%
              \expandafter\dtl@decrementrows\expandafter
                 {\csname @dtl@next\romannumeral
                    \dtlforeachlevel\endcsname
                 }{\csname dtl@row\romannumeral
                   \dtlforeachlevel\endcsname}%
              \edef\@dtl@tmp{%
                \expandafter\the
                  \csname @dtl@prev\romannumeral
                    \dtlforeachlevel\endcsname
                \expandafter\the
                  \csname @dtl@next\romannumeral
                     \dtlforeachlevel\endcsname
                }%
              \expandafter\global\expandafter
                 \csname dtldb@#2\endcsname\expandafter{\@dtl@tmp}%
              \expandafter\global\expandafter
                \advance\csname dtlrows@#2\endcsname by -1\relax
              \expandafter\global\expandafter
                \advance\csname dtl@row\romannumeral
                   \dtlforeachlevel\endcsname by -1\relax
            \else
              \@dtl@before=\csname @dtl@prev\romannumeral
                \dtlforeachlevel\endcsname
              \@dtl@after=\csname @dtl@next\romannumeral
                \dtlforeachlevel\endcsname
              \toks@gconcat@middle@cx{dtldb@#2}%
              {\@dtl@before}%
              {%
                \noexpand\db@row@elt@w%
                \noexpand\db@row@id@w \expandafter\number
                  \csname dtl@row\romannumeral
                    \dtlforeachlevel\endcsname
                \noexpand\db@row@id@end@%
                \expandafter\the
                  \csname @dtl@cur\romannumeral
                    \dtlforeachlevel\endcsname
                \noexpand\db@row@id@w \expandafter\number
                  \csname dtl@row\romannumeral
                    \dtlforeachlevel\endcsname
                \noexpand\db@row@id@end@%
                \noexpand\db@row@elt@end@%
                }%
              {\@dtl@after}%
            \fi
          }%
          {}%
         }%
        \expandafter\global\expandafter\let\expandafter\DTLiffirstrow
          \csname @dtl@iffirstrow\the\dtlforeachlevel\endcsname
        \expandafter\global\expandafter\let\expandafter\DTLiflastrow
          \csname @dtl@iflastrow\the\dtlforeachlevel\endcsname
        \expandafter\global\expandafter\let\expandafter\DTLifoddrow
          \csname @dtl@ifoddrow\the\dtlforeachlevel\endcsname
      }%
    \fi
    \global\advance\dtlforeachlevel by -1\relax
  }%
  {%
    \PackageError{datatool}{Database `#2' doesn't exist}{}%
  }%
}
\newcommand{\@sDTLforeach}[4][\boolean{true}]{%
  \DTLifdbexists{#2}%
  {%
    \refstepcounter{DTLrow}%
    \global\c@DTLrow=\c@DTLrow
    \xdef\@dtl@dbname{#2}%
    \global\advance\dtlforeachlevel by 1\relax
    \ifnum\dtlforeachlevel>3\relax
      \PackageError{datatool}{\string\DTLforeach\space nested too
        deeply}{Only 3 levels are allowed}%
    \else
       \@DTLifdbempty{#2}%
       {}%
       {%
        \expandafter\global
          \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
            = 0\relax
        \expandafter\global\expandafter\let%
          \csname @dtl@iffirstrow\the\dtlforeachlevel\endcsname
          \DTLiffirstrow
        \gdef\DTLiffirstrow##1##2{%
          \expandafter\ifnum
           \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
           =1\relax
            ##1%
          \else
            ##2%
          \fi}%
        \expandafter\global\expandafter\let%
          \csname @dtl@iflastrow\the\dtlforeachlevel\endcsname
          \DTLiflastrow
        \gdef\DTLiflastrow##1##2{%
          \expandafter\ifnum
           \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
           =\csname dtlrows@#2\endcsname\relax
            ##1%
          \else
            ##2%
          \fi}%
        \expandafter\global\expandafter\let%
          \csname @dtl@ifoddrow\the\dtlforeachlevel\endcsname
          \DTLifoddrow
        \gdef\DTLifoddrow##1##2{%
          \expandafter\ifodd
           \csname c@DTLrow\romannumeral\dtlforeachlevel\endcsname
            ##1%
          \else
            ##2%
          \fi}%
        \expandafter\gdef\csname @dtl@dbname@\romannumeral
          \dtlforeachlevel\endcsname{#2}%
        \expandafter\global\expandafter\let
          \csname @dtl@ro@\romannumeral\dtlforeachlevel\endcsname
            = 1\relax
        \@dtlforeachrow(\dtl@thisidx,\dtl@thisrow)\in{#2}\do%
        {%
          \csname dtl@row\romannumeral\dtlforeachlevel\endcsname
            = \dtl@thisidx\relax
          \expandafter\global
            \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
              = \expandafter{\dtl@thisrow}%
          \ifx\relax#3\relax
          \else
            \dtlcurrentrow=\expandafter{\dtl@thisrow}%
            \@dtl@assign{#3}{#2}%
          \fi
          \ifthenelse{#1}%
          {%
            \refstepcounter{DTLrow\romannumeral\dtlforeachlevel}%
            \expandafter\edef\expandafter\DTLcurrentindex%
              \expandafter{%
                 \arabic{DTLrow\romannumeral\dtlforeachlevel}}%
            #4%
          }%
          {}%
         }%
        \expandafter\global\expandafter\let\expandafter\DTLiffirstrow
          \csname @dtl@iffirstrow\the\dtlforeachlevel\endcsname
        \expandafter\global\expandafter\let\expandafter\DTLiflastrow
          \csname @dtl@iflastrow\the\dtlforeachlevel\endcsname
        \expandafter\global\expandafter\let\expandafter\DTLifoddrow
          \csname @dtl@ifoddrow\the\dtlforeachlevel\endcsname
      }%
    \fi
    \global\advance\dtlforeachlevel by -1\relax
  }%
  {%
    \PackageError{datatool}{Database `#2' doesn't exist}{}%
  }%
}
\newcommand*{\@dtlifreadonly}[2]{%
  \expandafter\ifx
    \csname @dtl@ro@\romannumeral\dtlforeachlevel\endcsname1\relax
    #1%
  \else
    #2%
  \fi
}
\newcommand*{\DTLappendtorow}[2]{%
  \ifnum\dtlforeachlevel=0\relax
    \PackageError{datatool}{\string\DTLappendrow\space can only be
      used inside \string\DTLforeach}{}%
  \else
    \expandafter\let\expandafter\@dtl@thisdb
      \csname @dtl@dbname@\romannumeral\dtlforeachlevel\endcsname
    \@dtlifreadonly
    {%
      \PackageError{datatool}{\string\DTLappendtorow\space can't
       be used inside \DTLforeach*}{The starred version of
       \string\DTLforeach\space is read only}%
    }%
    {%
      \dtlrownum=
        \csname dtl@row\romannumeral\dtlforeachlevel\endcsname\relax
      \@dtl@updatekeys{\@dtl@thisdb}{#1}{#2}%
      \expandafter\dtlcolumnnum\expandafter
        =\dtlcolumnindex{\@dtl@thisdb}{#1}\relax
      \dtlcurrentrow =
        \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
      \edef\dtl@dogetentry{\noexpand\dtlgetentryfromcurrentrow
        {\noexpand\dtl@entry}{\number\dtlcolumnnum}%
      }%
      \dtl@dogetentry
      \ifx\dtl@entry\dtlnovalue
        \protected@edef\@dtl@tmp{#2}%
        \expandafter\@dtl@toks\expandafter{\@dtl@tmp}%
        \toks@gput@right@cx{@dtl@cur\romannumeral\dtlforeachlevel}%
        {%
          \noexpand\db@col@id@w \number\dtlcolumnnum
            \noexpand\db@col@id@end@
          \noexpand\db@col@elt@w \the\@dtl@toks
            \noexpand\db@col@elt@end@
          \noexpand\db@col@id@w \number\dtlcolumnnum
            \noexpand\db@col@id@end@
        }%
         \dtl@message{Appended #1\space -> #2\space to database
           `\@dtl@thisdb'}%
      \else
        \PackageError{datatool}{Can't append entry to row:
          there is already an entry for key `#1' in this row}{}%
      \fi
    }%
  \fi
}
\newcommand*{\DTLremoveentryfromrow}[1]{%
  \ifnum\dtlforeachlevel=0\relax
    \PackageError{datatool}{\string\DTLremoventryfromrow\space
      can only be used inside \string\DTLforeach}{}%
  \else
    \expandafter\let\expandafter\@dtl@thisdb
      \csname @dtl@dbname@\romannumeral\dtlforeachlevel\endcsname
    \@dtlifreadonly
    {%
      \PackageError{datatool}{\string\DTLremoveentryfromrow\space
        can't be used inside \string\DTLforeach*}{The starred
        version of \string\DTLforeach\space is read only}%
    }%
    {%
      \dtlrownum=
        \csname dtl@row\romannumeral\dtlforeachlevel\endcsname\relax
      \@DTLifhaskey{\@dtl@thisdb}{#1}%
      {%
        \@dtl@getcolumnindex{\thiscol}{\@dtl@thisdb}{#1}\relax
        \dtlcolumnnum=\thiscol\relax
        \dtlcurrentrow =
          \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
        \edef\dtl@dogetentry{\noexpand\dtlgetentryfromcurrentrow
          {\noexpand\dtl@entry}{\number\dtlcolumnnum}%
        }%
        \dtl@dogetentry
        \ifx\dtl@entry\dtlnovalue
          \PackageError{datatool}{Can't remove entry given by `#1'
             from current row in database `\@dtl@thisdb': no such
             entry}{The current row doesn't contain an entry for
             key `#1'}%
        \else
          \edef\@dtl@dosplitrow{%
            \noexpand\dtlsplitrow{\the\dtlcurrentrow}%
              {\number\dtlcolumnnum}{\noexpand\dtl@pre}%
              {\noexpand\dtl@post}%
          }%
          \@dtl@dosplitrow
          \expandafter\@dtl@toks\expandafter{\dtl@pre}%
          \expandafter\toks@\expandafter{\dtl@post}%
          \edef\@dtl@tmp{\the\@dtl@toks \the\toks@}%
          \dtlcurrentrow=\expandafter{\@dtl@tmp}%
          \expandafter\global
            \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
              = \dtlcurrentrow
         \dtl@message{Removed entry given by #1\space from current
           row of database `\@dtl@thisdb'}%
        \fi
      }%
      {%
        \PackageError{datatool}{Can't remove entry given by
          `#1' - no such key exists}{}%
      }%
    }%
  \fi
}
\newcommand*{\DTLreplaceentryforrow}[2]{%
  \ifnum\dtlforeachlevel=0\relax
    \PackageError{datatool}{\string\DTLreplaceentryforrow\space
      can only be used inside \string\DTLforeach}{}%
  \else
    \expandafter\let\expandafter\@dtl@thisdb
      \csname @dtl@dbname@\romannumeral\dtlforeachlevel\endcsname
    \@dtlifreadonly
    {%
      \PackageError{datatool}{\string\DTLreplaceentryforrow\space
        can't be used inside \string\DTLforeach*}{The starred version
        of \string\DTLforeach\space is read only}%
    }%
    {%
      \dtlrownum=
        \csname dtl@row\romannumeral\dtlforeachlevel\endcsname\relax
      \@DTLifhaskey{\@dtl@thisdb}{#1}%
      {%
        \@dtl@getcolumnindex{\thiscol}{\@dtl@thisdb}{#1}\relax
        \dtlcolumnnum=\thiscol\relax
        \dtlcurrentrow =
          \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
        \edef\dtl@dogetentry{\noexpand\dtlgetentryfromcurrentrow
          {\noexpand\dtl@entry}{\number\dtlcolumnnum}%
        }%
        \dtl@dogetentry
        \ifx\dtl@entry\dtlnovalue
          \PackageError{datatool}{Can't replace entry given by `#1'
             from current row in database `\@dtl@thisdb': no such
             entry}{The current row doesn't contain an entry for
             key `#1'}%
        \else
          \edef\@dtl@dosplitrow{%
            \noexpand\dtlsplitrow{\the\dtlcurrentrow}%
              {\number\dtlcolumnnum}{\noexpand\dtl@pre}%
              {\noexpand\dtl@post}%
          }%
          \@dtl@dosplitrow
          \protected@edef\@dtl@tmp{#2}%
          \expandafter\@dtl@toks\expandafter{\@dtl@tmp}% new value
          \expandafter\@dtl@before\expandafter{\dtl@pre}%
          \expandafter\@dtl@after\expandafter{\dtl@post}%
          \toks@gconcat@middle@cx
            {@dtl@cur\romannumeral\dtlforeachlevel}%
            {\@dtl@before}%
            {%
              \noexpand\db@col@id@w \number\dtlcolumnnum
                \noexpand\db@col@id@end@%
              \noexpand\db@col@elt@w \the\@dtl@toks
                \noexpand\db@col@elt@end@%
              \noexpand\db@col@id@w \number\dtlcolumnnum
                \noexpand\db@col@id@end@%
            }%
            {\@dtl@after}%
         \dtl@message{Updated #1\space -> #2\space in database
           `\@dtl@thisdb'}%
        \fi
      }%
      {%
         \PackageError{datatool}{Can't replace key `#1' - no such
           key in database `\@dtl@thisdb'}{}%
      }%
    }%
  \fi
}
\newcommand*{\DTLremovecurrentrow}{%
  \ifnum\dtlforeachlevel=0\relax
    \PackageError{datatool}{\string\DTLremovecurrentrow\space can
      only be used inside \string\DTLforeach}{}%
  \else
    \expandafter\let\expandafter\@dtl@thisdb
      \csname @dtl@dbname@\romannumeral\dtlforeachlevel\endcsname
    \@dtlifreadonly
    {%
      \PackageError{datatool}{\string\DTLreplaceentryforrow\space
        can't be used inside \string\DTLforeach*}{The starred version
        of \string\DTLforeach\space is read only}%
    }%
    {%
      \expandafter\global
        \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
          ={\@nil}%
    }%
  \fi
}
\newcommand{\DTLaddentryforrow}[5]{%
  \DTLifdbexists{#1}%
  {%
    \def\@dtl@notdone{\PackageError{datatool}{Unable to add entry
      given by key `#4': condition not met for any row in database
      `#1'}{}}%
    \DTLforeach[#3]{#1}{#2}%
    {%
      \DTLappendtorow{#4}{#5}%
      \let\@dtl@notdone\relax
      \dtlbreak
    }%
    \@dtl@notdone
  }%
  {%
    \PackageError{datatool}{Unable to add entry given by key `#4':
      database `#1' doesn't exist}{}%
  }%
}
\newcommand*{\DTLforeachkeyinrow}[2]{%
  \ifnum\dtlforeachlevel=0\relax
    \PackageError{datatool}{\string\DTLforeachkeyinrow\space can only
     be used inside \string\DTLforeach}{}%
  \else
    \expandafter\let\expandafter\@dtl@thisdb
      \csname @dtl@dbname@\romannumeral\dtlforeachlevel\endcsname
    \dtlforeachkey(\dtlkey,\dtlcol,\dtltype,\dtlheader)\in
      \@dtl@thisdb\do{%
      \dtlcurrentrow =
        \csname @dtl@cur\romannumeral\dtlforeachlevel\endcsname
      \edef\dtl@dogetentry{\noexpand\dtlgetentryfromcurrentrow
        {\noexpand#1}{\dtlcol}}%
      \dtl@dogetentry
      \ifx#1\dtlnovalue
        \ifnum0\dtltype=0\relax
          \let#1=\@dtlstringnull
        \else
          \let#1=\@dtlnumbernull
        \fi
      \fi
      \global\let#1#1%
      \def\@dtl@loop@body{#2}%
      \@dtl@loop@body
    }%
  \fi
}
\newcommand{\DTLiffirstrow}[2]{%
  \PackageError{datatool}{\string\DTLiffirstrow\space can only
  be used inside \string\DTLforeach}{}%
}
\newcommand{\DTLiflastrow}[2]{%
  \PackageError{datatool}{\string\DTLiflastrow\space can only
  be used inside \string\DTLforeach}{}%
}
\newcommand{\DTLifoddrow}[2]{%
  \PackageError{datatool}{\string\DTLifoddrow\space can only
  be used inside \string\DTLforeach}{}%
}
\newcommand*{\dtlbetweencols}{}
\newcommand*{\dtlbeforecols}{}
\newcommand*{\dtlaftercols}{}
\newcommand*{\dtlstringalign}{l}
\newcommand*{\dtlintalign}{r}
\newcommand*{\dtlrealalign}{r}
\newcommand*{\dtlcurrencyalign}{r}
\newcommand*{\dtladdalign}[4]{%
  \ifnum#3=1\relax
    \protected@edef#1{\dtlbeforecols}%
  \else
    \protected@edef#1{#1\dtlbetweencols}%
  \fi
  \ifstrempty{#2}%
  {%
    \protected@edef#1{#1c}%
  }%
  {%
    \ifcase#2\relax
      \protected@edef#1{#1\dtlstringalign}%
    \or
      \protected@edef#1{#1\dtlintalign}%
    \or
      \protected@edef#1{#1\dtlrealalign}%
    \or
      \protected@edef#1{#1\dtlcurrencyalign}%
    \else
      \protected@edef#1{#1c}%
      \PackageError{datatool}{Unknown data type `#2'}{}%
    \fi
  }%
  \ifnum#3=#4\relax
    \protected@edef#1{#1\dtlaftercols}%
  \fi
}
\newcommand*{\dtlheaderformat}[1]{\null\hfil\textbf{#1}\hfil\null}
\newcommand*{\dtlstringformat}[1]{#1}
\newcommand*{\dtlintformat}[1]{#1}
\newcommand*{\dtlrealformat}[1]{#1}
\newcommand*{\dtlcurrencyformat}[1]{#1}
\newcommand*{\dtldisplaystarttab}{}
\newcommand*{\dtldisplayendtab}{}
\newcommand*{\dtldisplayafterhead}{}
\newcommand*{\dtldisplayvalign}{c}
\newcommand*{\dtldisplaystartrow}{}
\newcommand{\dtldisplaycr}{\tabularnewline}

\newcommand*{\DTLdisplaydb}[2][]{%
  \def\@dtl@doamp{\gdef\@dtl@doamp{&}}%
  \def\@dtl@resetdoamp{\gdef\@dtl@doamp{\gdef\@dtl@doamp{&}}}%
  \edef\@dtl@maxcols{\expandafter\number
    \csname dtlcols@#2\endcsname}%
  \DTLnumitemsinlist{#1}{\@dtl@tmp}%
  \dtlsub{\@dtl@maxcols}{\@dtl@maxcols}{\@dtl@tmp}%
  \dtlclip{\@dtl@maxcols}{\@dtl@maxcols}%
  \def\@dtl@tabargs{}%
  \dtlforeachkey(\@dtl@key,\@dtl@idx,\@dtl@type,\@dtl@head)%
    \in{#2}\do
  {%
    \expandafter\DTLifinlist\expandafter{\@dtl@key}{#1}%
    {}%
    {%
       \dtladdalign\@dtl@tabargs\@dtl@type\@dtl@idx\@dtl@maxcols
    }%
  }%
  \edef\@dtl@dobegintab{\noexpand\begin{tabular}[\dtldisplayvalign]{\@dtl@tabargs}}%
  \@dtl@dobegintab
  \dtldisplaystarttab
  \@dtl@resetdoamp
  \dtlforeachkey(\@dtl@key,\@dtl@idx,\@dtl@type,\@dtl@head)%
    \in{#2}\do
  {%
    \expandafter\DTLifinlist\expandafter{\@dtl@key}{#1}%
    {}%
    {%
      \@dtl@doamp
      \dtlheaderformat{\@dtl@head}%
    }%
  }%
  \\%
  \dtldisplayafterhead
  \@dtl@resetdoamp
  \@sDTLforeach{#2}{}{%
    \DTLiffirstrow{}{\dtldisplaycr\dtldisplaystartrow}%
    \@dtl@resetdoamp
    \DTLforeachkeyinrow{\@dtl@val}%
    {%
      \expandafter\DTLifinlist\expandafter{\dtlkey}{#1}%
      {}%
      {%
        \global\let\@dtl@val\@dtl@val
        \@dtl@doamp
        \@dtl@datatype=0\dtltype\relax
        \ifcase\@dtl@datatype
          \dtlstringformat\@dtl@val
        \or
          \dtlintformat\@dtl@val
        \or
          \dtlrealformat\@dtl@val
        \or
          \dtlcurrencyformat\@dtl@val
        \else
          \@dtl@val
        \fi
      }%
    }%
  }%
  \dtldisplayendtab
  \end{tabular}%
}
\define@key{displaylong}{caption}{\def\@dtl@cap{#1}}
\define@key{displaylong}{contcaption}{\def\@dtl@contcap{#1}}
\define@key{displaylong}{shortcaption}{\def\@dtl@shortcap{#1}}
\define@key{displaylong}{label}{\def\@dtl@label{#1}}
\define@key{displaylong}{foot}{\def\@dtl@foot{#1}}
\define@key{displaylong}{lastfoot}{\def\@dtl@lastfoot{#1}}
\define@key{displaylong}{omit}{\def\@dtl@omitlist{#1}}
\newcommand*{\@dtl@resetdostartrow}{%
  \gdef\@dtl@dostartrow{%
    \gdef\@dtl@dostartrow{\dtldisplaycr\dtldisplaystartrow}}%
}
\newcommand*{\DTLdisplaylongdb}[2][]{%
  \def\@dtl@cap{\@nil}%
  \def\@dtl@contcap{\@nil}%
  \def\@dtl@label{\@nil}%
  \def\@dtl@shortcap{\@dtl@cap}%
  \def\@dtl@foot{\@nil}%
  \def\@dtl@lastfoot{\@nil}%
  \def\@dtl@omitlist{}%
  \setkeys{displaylong}{#1}%
  \def\@dtl@doamp{\gdef\@dtl@doamp{&}}%
  \def\@dtl@resetdoamp{\gdef\@dtl@doamp{\gdef\@dtl@doamp{&}}}%
  \@dtl@resetdostartrow
  \edef\@dtl@maxcols{\expandafter\number
    \csname dtlcols@#2\endcsname}%
  \DTLnumitemsinlist{\@dtl@omitlist}{\@dtl@tmp}%
  \dtlsub{\@dtl@maxcols}{\@dtl@maxcols}{\@dtl@tmp}%
  \dtlclip{\@dtl@maxcols}{\@dtl@maxcols}%
  \def\@dtl@tabargs{}%
  \dtlforeachkey(\@dtl@key,\@dtl@idx,\@dtl@type,\@dtl@head)%
    \in{#2}\do
  {%
    \expandafter\DTLifinlist\expandafter{\@dtl@key}{\@dtl@omitlist}%
    {}%
    {%
      \dtladdalign\@dtl@tabargs\@dtl@type\@dtl@idx\@dtl@maxcols
    }%
  }%
  \edef\@dtl@dobegintab{\noexpand\begin{longtable}{\@dtl@tabargs}}%
  \@dtl@dobegintab
  \ifx\@dtl@foot\@nnil
  \else
    \@dtl@foot\endfoot
  \fi
  \ifx\@dtl@lastfoot\@nnil
  \else
    \@dtl@lastfoot\endlastfoot
  \fi
  \ifx\@dtl@cap\@nnil
    \@dtl@resetdoamp
    \dtldisplaystarttab
    \dtlforeachkey(\@dtl@key,\@dtl@idx,\@dtl@type,\@dtl@head)%
      \in{#2}\do
    {%
      \expandafter\DTLifinlist\expandafter{\@dtl@key}{\@dtl@omitlist}%
      {}%
      {%
        \@dtl@doamp{\dtlheaderformat{\@dtl@head}}%
      }%
    }%
    \@dtl@resetdoamp
    \@dtl@resetdostartrow
    \endhead\dtldisplayafterhead
  \else
    \caption[\@dtl@shortcap]{\@dtl@cap}%
    \ifx\@dtl@label\@nnil
    \else
      \label{\@dtl@label}%
    \fi
    \dtldisplaycr
  \dtldisplaystarttab
    \@dtl@resetdoamp
    \dtlforeachkey(\@dtl@key,\@dtl@idx,\@dtl@type,\@dtl@head)%
      \in{#2}\do
    {%
      \expandafter\DTLifinlist\expandafter{\@dtl@key}{\@dtl@omitlist}%
      {}%
      {%
        \@dtl@doamp{\dtlheaderformat{\@dtl@head}}%
      }%
    }%
    \@dtl@resetdoamp
    \dtldisplaycr\dtldisplayafterhead
    \endfirsthead
    \ifx\@dtl@contcap\@nnil
      \caption{\@dtl@cap}%
    \else
      \caption{\@dtl@contcap}%
    \fi
    \dtldisplaycr\dtldisplaystarttab
      \@dtl@resetdoamp
      \dtlforeachkey(\@dtl@key,\@dtl@idx,\@dtl@type,\@dtl@head)%
      \in{#2}\do
      {%
        \expandafter\DTLifinlist\expandafter{\@dtl@key}{\@dtl@omitlist}%
        {}%
        {%
          \@dtl@doamp{\dtlheaderformat{\@dtl@head}}%
        }%
      }%
      \@dtl@resetdoamp
      \@dtl@resetdostartrow
    \dtldisplaycr\dtldisplayafterhead
    \endhead
  \fi
  \@sDTLforeach{#2}{}{%
    \@dtl@dostartrow
    \@dtl@resetdoamp
    \DTLforeachkeyinrow{\@dtl@val}%
    {%
      \global\let\@dtl@val\@dtl@val
      \expandafter\DTLifinlist\expandafter{\dtlkey}{\@dtl@omitlist}%
      {}%
      {%
        \@dtl@doamp
        \@dtl@datatype=0\dtltype\relax
        \ifcase\@dtl@datatype
          \dtlstringformat\@dtl@val
        \or
          \dtlintformat\@dtl@val
        \or
          \dtlrealformat\@dtl@val
        \or
          \dtlcurrencyformat\@dtl@val
        \fi
      }%
    }%
  }%
  \dtldisplayendtab
  \end{longtable}%
}
\newcommand*{\dtlswaprows}[3]{%
  \ifnum#2=#3\relax
  \else
    \ifnum#2<#3\relax
      \edef\@dtl@rowAidx{\number#2}%
      \edef\@dtl@rowBidx{\number#3}%
    \else
      \edef\@dtl@rowAidx{\number#3}%
      \edef\@dtl@rowBidx{\number#2}%
    \fi
    \edef\@dtl@dosplit{\noexpand\dtlgetrow{#1}{\@dtl@rowAidx}}%
    \@dtl@dosplit
    \expandafter\def\expandafter\@dtl@firstpart\expandafter
      {\the\dtlbeforerow}%
    \@dtl@toksA=\dtlcurrentrow
    \edef\@dtl@dosplit{\noexpand\@dtlgetrow
      {\the\dtlafterrow}{\@dtl@rowBidx}}%
    \@dtl@dosplit
    \expandafter\def\expandafter\@dtl@secondpart\expandafter
      {\the\dtlbeforerow}%
    \@dtl@toksB=\dtlcurrentrow
    \expandafter\def\expandafter\@dtl@thirdpart\expandafter
      {\the\dtlafterrow}%
    \toks@=\expandafter{\@dtl@firstpart}%
    \@dtl@toks=\expandafter{\@dtl@secondpart}%
    \edef\@dtl@tmp{\the\toks@
     \noexpand\db@row@elt@w%
     \noexpand\db@row@id@w \@dtl@rowAidx\noexpand\db@row@id@end@%
     \the\@dtl@toksB
     \noexpand\db@row@id@w \@dtl@rowAidx\noexpand\db@row@id@end@%
     \noexpand\db@row@elt@end@%
     \the\@dtl@toks}%
    \toks@=\expandafter{\@dtl@tmp}%
    \@dtl@toks=\expandafter{\@dtl@thirdpart}%
    \edef\@dtl@tmp{\the\toks@
     \noexpand\db@row@elt@w%
     \noexpand\db@row@id@w \@dtl@rowBidx\noexpand\db@row@id@end@%
     \the\@dtl@toksA
     \noexpand\db@row@id@w \@dtl@rowBidx\noexpand\db@row@id@end@%
     \noexpand\db@row@elt@end@%
    \the\@dtl@toks}%
    \expandafter\global\csname dtldb@#1\endcsname=\expandafter
      {\@dtl@tmp}%
  \fi
}
\newcommand*{\dtl@decrementrows}[2]{%
  \def\@dtl@newlist{}%
  \edef\@dtl@min{\number#2}%
  \expandafter\@dtl@decrementrows\the#1%
    \db@row@elt@w%
      \db@row@id@w \@nil\db@row@id@end@%
      \db@row@id@w \@nil\db@row@id@end@%
    \db@row@elt@end@%
    \@nil
  #1=\expandafter{\@dtl@newlist}%
}
\def\@dtl@decrementrows\db@row@elt@w\db@row@id@w #1\db@row@id@end@%
#2\db@row@id@w #3\db@row@id@end@\db@row@elt@end@#4\@nil{%
  \def\@dtl@thisrow{#1}%
  \ifx\@dtl@thisrow\@nnil
    \let\@dtl@donextdec=\@dtl@gobbletonil
  \else
    \ifnum\@dtl@thisrow>\@dtl@min
      \@dtl@tmpcount=\@dtl@thisrow\relax
      \advance\@dtl@tmpcount by -1\relax
      \toks@{#2}%
      \@dtl@toks=\expandafter{\@dtl@newlist}%
      \edef\@dtl@newlist{\the\@dtl@toks
        \noexpand\db@row@elt@w% row header
        \noexpand\db@row@id@w \number\@dtl@tmpcount
          \noexpand\db@row@id@end@% row id
         \the\toks@ % row contents
        \noexpand\db@row@id@w \number\@dtl@tmpcount
          \noexpand\db@row@id@end@% row id
        \noexpand\db@row@elt@end@% row end
      }%
    \else
      \toks@{#2}%
      \@dtl@toks=\expandafter{\@dtl@newlist}%
      \edef\@dtl@newlist{\the\@dtl@toks
        \noexpand\db@row@elt@w% row header
        \noexpand\db@row@id@w #1%
          \noexpand\db@row@id@end@% row id
         \the\toks@ % row contents
        \noexpand\db@row@id@w #3%
          \noexpand\db@row@id@end@% row id
        \noexpand\db@row@elt@end@% row end
      }%
    \fi
    \let\@dtl@donextdec=\@dtl@decrementrows
  \fi
  \@dtl@donextdec#4\@nil
}
\newcommand*{\DTLremoverow}[2]{%
  \DTLifdbexists{#1}%
  {%
    \ifnum#2>0\relax
      \expandafter\ifnum\csname dtlrows@#1\endcsname<#2\relax
        \expandafter\ifnum\csname dtlrows@#1\endcsname=1\relax
          \PackageError{datatool}{Can't remove row `\number#2' from
            database `#1': no such row}{Database `#1' only has
            1 row}%
        \else
          \PackageError{datatool}{Can't remove row `\number#2' from
            database `#1': no such row}{Database `#1' only has
            \expandafter\number\csname dtlrows@#1\endcsname\space
            rows}%
        \fi
      \else
        \@DTLremoverow{#1}{#2}%
      \fi
    \else
      \PackageError{datatool}{Can't remove row \number#2: index
        out of bounds}{Row indices start at 1}%
    \fi
  }%
  {%
    \PackageError{datatool}{Can't remove row: database `#1' doesn't
      exist}{}%
  }%
}
\newcommand*{\@DTLremoverow}[2]{%
      \edef\dtl@dogetrow{\noexpand\dtlgetrow{#1}{\number#2}}%
      \dtl@dogetrow
      \expandafter\dtl@decrementrows\expandafter
        {\dtlbeforerow}{#2}%
      \expandafter\dtl@decrementrows\expandafter
        {\dtlafterrow}{#2}%
      \edef\dtl@tmp{\the\dtlbeforerow \the\dtlafterrow}%
      \expandafter\global\csname dtldb@#1\endcsname
        =\expandafter{\dtl@tmp}%
      \expandafter\global\expandafter\advance
        \csname dtlrows@#1\endcsname by -1\relax
}
\newcommand*{\DTLsumforkeys}[1][\boolean{true}\and
 \DTLisnumerical{\DTLthisval}]{%
  \def\@dtl@cond{#1}%
  \@dtlsumforkeys
}
\newcommand*{\@dtlsumforkeys}[4][]{%
  \def#4{0}%
  \@for\@dtl@db@name:=#2\do{%
    \@sDTLforeach{\@dtl@db@name}%
    {#1}% assignment list
    {%
      \@for\@dtl@key:=#3\do{%
        \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@db@name}{\@dtl@key}%
        \dtlcurrentrow=\expandafter{\dtl@thisrow}%
        \dtlgetentryfromrow{\DTLthisval}{\@dtl@col}{\dtlcurrentrow}%
        \expandafter\ifthenelse\expandafter{\@dtl@cond}%
          {\DTLadd{#4}{#4}{\DTLthisval}}{}%
      }%
    }%
  }%
}
\newcommand*{\DTLsumcolumn}[3]{%
  \def#3{0}%
  \DTLifdbexists{#1}%
  {%
     \@sDTLifhaskey{#1}{#2}%
     {%
       \@sdtlforcolumn{\DTLthisval}{#1}{#2}%
       {%
         \DTLadd{#3}{#3}{\DTLthisval}%
       }%
     }%
     {%
       \PackageError{datatool}{Key `#2' doesn't
         exist in database `#1'}{}%
     }%
  }%
  {%
    \PackageError{datatool}{Data base `#1' doesn't
      exist}{}%
  }%
}
\newcommand*{\DTLmeanforkeys}[1][\boolean{true}\and
 \DTLisnumerical{\DTLthisval}]{%
  \def\@dtl@cond{#1}%
  \@dtlmeanforkeys
}
\newcount\@dtl@elements
\newcommand*{\@dtlmeanforkeys}[4][]{%
  \def#4{0}%
  \@dtl@elements=0\relax
  \@for\@dtl@db@name:=#2\do{%
    \@sDTLforeach{\@dtl@db@name}%
    {#1}% assignment list
    {%
      \@for\@dtl@key:=#3\do{%
        \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@db@name}{\@dtl@key}%
        \dtlcurrentrow=\expandafter{\dtl@thisrow}%
        \dtlgetentryfromrow{\DTLthisval}{\@dtl@col}{\dtlcurrentrow}%
        \expandafter\ifthenelse\expandafter{\@dtl@cond}%
        {%
          \DTLadd{#4}{#4}{\DTLthisval}%
          \advance\@dtl@elements by 1\relax
        }{}%
      }%
    }%
  }%
  \ifnum\@dtl@elements=0\relax
    \PackageError{datatool}{Unable to evaluate mean: no data}{}%
  \else
    \edef\@dtl@n{\number\@dtl@elements}%
    \DTLdiv{#4}{#4}{\@dtl@n}%
  \fi
}
\newcommand*{\DTLmeanforcolumn}[3]{%
  \def#3{0}%
  \@dtl@elements=0\relax
  \DTLifdbexists{#1}%
  {%
     \@sDTLifhaskey{#1}{#2}%
     {%
       \@sdtlforcolumn{\DTLthisval}{#1}{#2}%
       {%
         \DTLadd{#3}{#3}{\DTLthisval}%
         \advance\@dtl@elements by 1\relax
       }%
       \ifnum\@dtl@elements=0\relax
         \PackageError{datatool}{Can't compute mean for
          column `#2' in database `#1': no data}{}%
       \else
         \edef\@dtl@n{\number\@dtl@elements}%
         \DTLdiv{#3}{#3}{\@dtl@n}%
       \fi
     }%
     {%
       \PackageError{datatool}{Key `#2' doesn't
         exist in database `#1'}{}%
     }%
  }%
  {%
    \PackageError{datatool}{Data base `#1' doesn't
      exist}{}%
  }%
}
\newcommand*{\DTLvarianceforkeys}[1][\boolean{true}\and
 \DTLisnumerical{\DTLthisval}]{%
  \def\@dtl@cond{#1}%
  \@dtlvarianceforkeys
}
\newcommand*{\@dtlvarianceforkeys}[4][]{%
  \@dtlmeanforkeys[#1]{#2}{#3}{\dtl@mean}%
  \def#4{0}%
  \@dtl@elements=0\relax
  \@for\@dtl@db@name:=#2\do{%
    \@sDTLforeach{\@dtl@db@name}%
    {#1}% assignment list
    {%
      \@for\@dtl@key:=#3\do{%
        \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@db@name}{\@dtl@key}%
        \dtlcurrentrow=\expandafter{\dtl@thisrow}%
        \dtlgetentryfromrow{\DTLthisval}{\@dtl@col}{\dtlcurrentrow}%
        \expandafter\ifthenelse\expandafter{\@dtl@cond}%
        {%
           \DTLsub{\dtl@diff}{\DTLthisval}{\dtl@mean}%
           \DTLmul{\dtl@diff}{\dtl@diff}{\dtl@diff}%
           \DTLadd{#4}{#4}{\dtl@diff}%
           \advance\@dtl@elements by 1\relax
        }{}%
      }%
    }%
  }%
  \ifnum\@dtl@elements=0\relax
    \PackageError{datatool}{Unable to evaluate variance: no data}{}%
  \else
    \edef\@dtl@n{\number\@dtl@elements}%
    \DTLdiv{#4}{#4}{\@dtl@n}%
  \fi
}
\newcommand*{\DTLvarianceforcolumn}[3]{%
  \DTLmeanforcolumn{#1}{#2}{\dtl@mean}%
  \def#3{0}%
  \@dtl@elements=0\relax
  \DTLifdbexists{#1}%
  {%
     \@sDTLifhaskey{#1}{#2}%
     {%
       \@sdtlforcolumn{\DTLthisval}{#1}{#2}%
       {%
         \DTLsub{\dtl@diff}{\DTLthisval}{\dtl@mean}%
         \DTLmul{\dtl@diff}{\dtl@diff}{\dtl@diff}%
         \DTLadd{#3}{#3}{\dtl@diff}%
         \advance\@dtl@elements by 1\relax
       }%
       \ifnum\@dtl@elements=0\relax
         \PackageError{datatool}{Can't compute variance for
          column `#2' in database `#1': no data}{}%
       \else
         \edef\@dtl@n{\number\@dtl@elements}%
         \DTLdiv{#3}{#3}{\@dtl@n}%
       \fi
     }%
     {%
       \PackageError{datatool}{Key `#2' doesn't
         exist in database `#1'}{}%
     }%
  }%
  {%
    \PackageError{datatool}{Data base `#1' doesn't
      exist}{}%
  }%
}
\newcommand*{\DTLsdforkeys}[1][\boolean{true}\and
\DTLisnumerical{\DTLthisval}]{%
  \def\@dtl@cond{#1}%
  \@dtlsdforkeys
}
\newcommand*{\@dtlsdforkeys}[4][]{%
  \@dtlvarianceforkeys[#1]{#2}{#3}{#4}%
  \DTLsqrt{#4}{#4}%
}
\newcommand*{\DTLsdforcolumn}[3]{%
  \DTLvarianceforcolumn{#1}{#2}{#3}%
  \DTLsqrt{#3}{#3}%
}
\newcommand*{\DTLminforkeys}[1][\boolean{true}\and
 \DTLisnumerical{\DTLthisval}]{%
  \def\@dtl@cond{#1}%
  \@dtlminforkeys
}
\newcommand*{\@dtlminforkeys}[4][]{%
  \def#4{}%
  \@for\@dtl@db@name:=#2\do{%
    \@sDTLforeach{\@dtl@db@name}%
    {#1}% assignment list
    {%
      \@for\@dtl@key:=#3\do{%
        \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@db@name}{\@dtl@key}%
        \dtlcurrentrow=\expandafter{\dtl@thisrow}%
        \dtlgetentryfromrow{\DTLthisval}{\@dtl@col}{\dtlcurrentrow}%
        \expandafter\ifthenelse\expandafter{\@dtl@cond}%
        {%
          \ifdefempty{#4}%
          {%
            \let#4\DTLthisval
          }%
          {%
            \DTLmin{#4}{#4}{\DTLthisval}%
          }%
        }{}%
      }%
    }%
  }%
}
\newcommand*{\DTLminforcolumn}[3]{%
  \def#3{}%
  \DTLifdbexists{#1}%
  {%
     \@sDTLifhaskey{#1}{#2}%
     {%
       \@sdtlforcolumn{\DTLthisval}{#1}{#2}%
       {%
         \ifdefempty{#3}%
         {%
           \let#3\DTLthisval
         }%
         {%
           \DTLmin{#3}{#3}{\DTLthisval}%
         }%
       }%
     }%
     {%
       \PackageError{datatool}{Key `#2' doesn't
         exist in database `#1'}{}%
     }%
  }%
  {%
    \PackageError{datatool}{Data base `#1' doesn't
      exist}{}%
  }%
}
\newcommand*{\DTLmaxforkeys}[1][\boolean{true}\and
 \DTLisnumerical{\DTLthisval}]{%
  \def\@dtl@cond{#1}%
  \@dtlmaxforkeys
}
\newcommand*{\@dtlmaxforkeys}[4][]{%
  \def#4{}%
  \@for\@dtl@db@name:=#2\do{%
    \@sDTLforeach{\@dtl@db@name}%
    {#1}% assignment list
    {%
      \@for\@dtl@key:=#3\do{%
        \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@db@name}{\@dtl@key}%
        \dtlcurrentrow=\expandafter{\dtl@thisrow}%
        \dtlgetentryfromrow{\DTLthisval}{\@dtl@col}{\dtlcurrentrow}%
        \expandafter\ifthenelse\expandafter{\@dtl@cond}%
        {%
          \ifdefempty{#4}%
          {%
            \let#4\DTLthisval
          }%
          {%
            \DTLmax{#4}{#4}{\DTLthisval}%
          }%
        }{}%
      }%
    }%
  }%
}
\newcommand*{\DTLmaxforcolumn}[3]{%
  \def#3{}%
  \DTLifdbexists{#1}%
  {%
     \@sDTLifhaskey{#1}{#2}%
     {%
       \@sdtlforcolumn{\DTLthisval}{#1}{#2}%
       {%
         \ifdefempty{#3}%
         {%
           \let#3\DTLthisval
         }%
         {%
           \DTLmax{#3}{#3}{\DTLthisval}%
         }%
       }%
     }%
     {%
       \PackageError{datatool}{Key `#2' doesn't
         exist in database `#1'}{}%
     }%
  }%
  {%
    \PackageError{datatool}{Data base `#1' doesn't
      exist}{}%
  }%
}
\newcommand*{\DTLcomputebounds}[8][\boolean{true}]{%
\let#5=\relax
\let#6=\relax
\let#7=\relax
\let#8=\relax
\@for\dtl@thisdb:=#2\do{%
  \@sDTLforeach[#1]{\dtl@thisdb}{\DTLthisX=#3,\DTLthisY=#4}{%
    \expandafter\DTLconverttodecimal\expandafter{\DTLthisX}{\dtl@decx}%
    \expandafter\DTLconverttodecimal\expandafter{\DTLthisY}{\dtl@decy}%
    \ifx#5\relax
      \let#5=\dtl@decx
      \let#6=\dtl@decy
      \let#7=\dtl@decx
      \let#8=\dtl@decy
    \else
      \dtlmin{#5}{#5}{\dtl@decx}%
      \dtlmin{#6}{#6}{\dtl@decy}%
      \dtlmax{#7}{#7}{\dtl@decx}%
      \dtlmax{#8}{#8}{\dtl@decy}%
    \fi
  }%
}%
}
\newcommand*{\DTLgetvalueforkey}[5]{%
  \DTLgetrowforkey{\@dtl@row}{#3}{#4}{#5}%
  \@sdtl@getcolumnindex{\@dtl@col}{#3}{#2}%
  {%
    \dtlcurrentrow=\expandafter{\@dtl@row}%
    \edef\@dtl@dogetval{\noexpand\dtlgetentryfromcurrentrow
      {\noexpand\@dtl@val}{\@dtl@col}}%
    \@dtl@dogetval
    \global\let#1=\@dtl@val
  }%
}
\newcommand*{\DTLgetrowforkey}[4]{%
  \global\let#1=\@empty
  \@sDTLforeach{#2}{\dtl@refvalue=#3}{%
    \DTLifnull{\dtl@refvalue}%
    {}%
    {%
      \ifthenelse{\equal{\dtl@refvalue}{#4}}%
      {%
        \xdef#1{\the\dtlcurrentrow}%
        \dtlbreak
      }%
      {}%
    }%
  }%
}
\newtoks\@dtl@list
\newcommand*{\DTLsort}{\@ifstar\@sDTLsort\@DTLsort}
\newcommand{\@DTLsort}[3][]{%
  \dtlsort[#1]{#2}{#3}{\dtlcompare}%
}
\newcommand*{\@sDTLsort}[3][]{%
  \dtlsort[#1]{#2}{#3}{\dtlicompare}%
}
\newcommand{\dtlsort}[4][]{%
  \DTLifdbexists{#3}%
  {%
     \ifnum\DTLrowcount{#3}>100\relax
       \typeout{Sorting `#3' - this may take a while.}%
     \fi
    \edef\@dtl@replacementkeys{#1}%
    \def\@dtl@sortorder{}%
    \@for\@dtl@level:=#2\do
    {%
      \expandafter\@dtl@getsortdirection\@dtl@level=\relax
      \DTLifhaskey{#3}{\@dtl@key}%
      {%
         \ifdefempty\@dtl@sortorder
         {\let\@dtl@sortorder=\@dtl@level}%
         {\eappto\@dtl@sortorder{,\@dtl@level}}%
      }%
      {%
         \PackageError{datatool}%
         {%
            Can't sort on `\@dtl@level'.
            No such key `\@dtl@key' in database `#3'%
         }{}%
      }%
    }%
    \ifdefempty\@dtl@sortorder
    {%
       \PackageWarning{datatool}{No keys provided to sort database `#3'}%
    }%
    {%
      \let\@dtl@comparecs=#4%
      \dtl@sortdata{#3}%
    }%
  }%
  {%
    \PackageError{datatool}{Database `#3' doesn't exist}{}%
  }%
}
\newtoks\@dtl@rowa
\newtoks\@dtl@rowb
\newcommand*{\dtl@sortdata}[1]{%
  \def\@dtl@sortedlist{}%
  \edef\@dtl@dbname{#1}%
  \@dtlforeachrow(\@dtl@rowAnum,\@dtl@rowAcontents)\in\@dtl@dbname\do{%
    \@dtl@rowa=\expandafter{\@dtl@rowAcontents}%
    \def\@dtl@newlist{}%
  \@dtl@insertdonefalse
  \dtlrownum=0\relax
  \expandafter\@dtl@foreachrow\@dtl@sortedlist
    \db@row@elt@w%
    \db@row@id@w \@nil\db@row@id@end@%
    \db@row@id@w \@nil\db@row@id@end@%
    \db@row@elt@end@%
    \@@{\@dtl@rowBnum}{\@dtl@rowBcontents}%
    {%
      \@dtl@rowb=\expandafter{\@dtl@rowBcontents}%
      \dtlrownum=\@dtl@rowBnum
      \if@dtl@insertdone
        \advance\dtlrownum by 1\relax
      \else
        \@dtl@sortcriteria{\@dtl@rowa}{\@dtl@rowb}%
        \ifnum\dtl@sortresult<0\relax
          \toks@=\expandafter{\@dtl@newlist}%
          \edef\@dtl@newlist{%
            \the\toks@
            \noexpand\db@row@elt@w%
             \noexpand\db@row@id@w \number\dtlrownum
             \noexpand\db@row@id@end@%
             \the\@dtl@rowa
             \noexpand\db@row@id@w \number\dtlrownum
             \noexpand\db@row@id@end@%
            \noexpand\db@row@elt@end@%
          }%
          \advance\dtlrownum by 1\relax
          \@dtl@insertdonetrue
        \fi
      \fi
      \toks@=\expandafter{\@dtl@newlist}%
      \edef\@dtl@newlist{\the\toks@
        \noexpand\db@row@elt@w%
         \noexpand\db@row@id@w \number\dtlrownum
         \noexpand\db@row@id@end@%
         \the\@dtl@rowb
         \noexpand\db@row@id@w \number\dtlrownum
         \noexpand\db@row@id@end@%
        \noexpand\db@row@elt@end@%
      }%
    }\q@nil
    \if@dtl@insertdone
    \else
      \advance\dtlrownum by 1\relax
      \toks@=\expandafter{\@dtl@newlist}%
      \edef\@dtl@newlist{\the\toks@
        \noexpand\db@row@elt@w%
         \noexpand\db@row@id@w \number\dtlrownum
         \noexpand\db@row@id@end@%
         \the\@dtl@rowa
         \noexpand\db@row@id@w \number\dtlrownum
         \noexpand\db@row@id@end@%
        \noexpand\db@row@elt@end@%
      }%
    \fi
    \let\@dtl@sortedlist=\@dtl@newlist
  }%
  \expandafter\global\csname dtldb@#1\endcsname=\expandafter
    {\@dtl@sortedlist}%
}
\newcommand{\@dtl@sortcriteria}[2]{%
  \@for\@dtl@level:=\@dtl@sortorder\do
  {%
    \expandafter\@dtl@getsortdirection\@dtl@level=\relax
    \let\@dtl@keya=\@dtl@key
    \let\@dtl@keyb=\@dtl@key
    \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@dbname}{\@dtl@key}%
    \dtlgetentryfromrow{\@dtl@a}{\@dtl@col}{#1}%
    \dtlgetentryfromrow{\@dtl@b}{\@dtl@col}{#2}%
    \ifx\@dtl@a\dtlnovalue
      \@dtl@setnull{\@dtl@a}{\@dtl@key}%
    \fi
    \ifx\@dtl@b\dtlnovalue
      \@dtl@setnull{\@dtl@b}{\@dtl@key}%
    \fi
    \DTLifnull{\@dtl@a}%
    {%
      \@for\@dtl@keya:=\@dtl@replacementkeys\do{%
        \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@dbname}{\@dtl@keya}%
        \dtlgetentryfromrow{\@dtl@a}{\@dtl@col}{#1}%
        \ifx\@dtl@a\dtlnovalue
          \@dtl@setnull{\@dtl@a}{\@dtl@key}%
        \fi
        \DTLifnull{\@dtl@a}{}{\@endfortrue}%
      }%
      \ifx\@dtl@keya\@nnil
        \let\@dtl@keya\@dtl@key
        \@dtl@setnull{\@dtl@a}{\@dtl@key}%
      \fi
    }%
    {}%
    \DTLifnull{\@dtl@b}%
    {%
      \@for\@dtl@keyb:=\@dtl@replacementkeys\do{%
        \@sdtl@getcolumnindex{\@dtl@col}{\@dtl@dbname}{\@dtl@keyb}%
        \dtlgetentryfromrow{\@dtl@b}{\@dtl@col}{#2}%
        \ifx\@dtl@b\dtlnovalue
          \@dtl@setnull{\@dtl@b}{\@dtl@key}%
        \fi
        \DTLifnull{\@dtl@b}{}{\@endfortrue}%
      }%
      \ifx\@dtl@keyb\@nnil
        \let\@dtl@keyb\@dtl@key
        \@dtl@setnull{\@dtl@b}{\@dtl@key}%
      \fi
    }%
    {}%
    \@dtl@toksA=\expandafter{\@dtl@a}%
    \@dtl@toksB=\expandafter{\@dtl@b}%
    \edef\@dtl@docompare{\noexpand\dtl@compare@
      {\@dtl@keya}{\@dtl@keyb}%
      {\noexpand\@dtl@toksA}{\noexpand\@dtl@toksB}}%
    \@dtl@docompare
    \ifnum\dtl@sortresult=0\relax
      \@endforfalse
    \else
      \@endfortrue
    \fi
  }%
  \multiply\dtl@sortresult by -\@dtl@sortdirection\relax
}
\def\@dtl@getsortdirection#1=#2\relax{%
  \def\@dtl@key{#1}%
  \def\@dtl@sortdirection{#2}%
  \ifdefempty{\@dtl@sortdirection}%
  {%
    \def\@dtl@sortdirection{-1}%
  }%
  {%
    \@dtl@get@sortdirection#2%
    \def\@dtl@dir{ascending}%
    \ifx\@dtl@sortdirection\@dtl@dir
      \def\@dtl@sortdirection{-1}%
    \else
      \def\@dtl@dir{descending}%
      \ifx\@dtl@sortdirection\@dtl@dir
        \def\@dtl@sortdirection{1}%
      \else
        \PackageError{datatool}{Invalid sort direction
        `\@dtl@sortdirection'}{The sort direction can only be
         one of `ascending' or `descending'}%
        \def\@dtl@sortdirection{-1}%
      \fi
    \fi
  }%
}
\def\@dtl@get@sortdirection#1={\def\@dtl@sortdirection{#1}}
\newtoks\@dtl@toksA
\newtoks\@dtl@toksB
\newcommand{\dtl@compare}[3]{%
  \dtl@compare@{#1}{#1}{#2}{#3}%
}
\newcommand{\dtl@compare@}[4]{%
  \DTLgetdatatype{\@dtl@typeA}{\@dtl@dbname}{#1}%
  \ifx\@dtl@typeA\DTLunsettype
    \let\@dtl@typeA\DTLstringtype
  \fi
  \DTLgetdatatype{\@dtl@typeB}{\@dtl@dbname}{#2}%
  \ifx\@dtl@typeB\DTLunsettype
    \let\@dtl@typeB\DTLstringtype
  \fi
  \@dtl@tmpcount=\@dtl@typeA\relax
  \multiply\@dtl@tmpcount by \@dtl@typeB\relax
  \ifnum\@dtl@tmpcount=0\relax
    \edef\@dtl@tmpcmp{%
      \noexpand\@dtl@comparecs{\noexpand\dtl@sortresult}%
        {\the#3}{\the#4}%
      }%
    \@dtl@tmpcmp
    \ifdtlverbose
      \edef\@dtl@a{\the#3}%
      \edef\@dtl@b{\the#4}%
    \fi
  \else
    \edef\@dtl@a{\the#3}%
    \edef\@dtl@b{\the#4}%
    \DTLifnumlt{\@dtl@a}{\@dtl@b}%
    {%
      \dtl@sortresult=-1\relax
    }%
    {%
      \DTLifnumgt{\@dtl@a}{\@dtl@b}%
      {%
        \dtl@sortresult=1\relax
      }%
      {%
        \dtl@sortresult=0\relax
      }%
    }%
  \fi
  \ifdtlverbose
    \@onelevel@sanitize\@dtl@a
    \@onelevel@sanitize\@dtl@b
    \dtl@message{`\@dtl@a' <=> `\@dtl@b' = \number\dtl@sortresult}%
  \fi
}
\newwrite\@dtl@write
\newcommand*{\DTLsavedb}[2]{%
  \DTLifdbexists{#1}%
  {%
    \openout\@dtl@write=#2\relax
    \def\@dtl@header{}%
    \dtlforeachkey(\@dtl@key,\@dtl@col,\@dtl@type,\@dtl@head)%
      \in{#1}\do
    {%
      \IfSubStringInString{\@dtl@separator}{\@dtl@key}%
      {%
        \ifdefempty{\@dtl@header}%
        {%
          \protected@edef\@dtl@header{%
            \@dtl@delimiter\@dtl@key\@dtl@delimiter}%
        }%
        {%
          \toks@=\expandafter{\@dtl@header}%
          \protected@edef\@dtl@header{%
            \the\toks@\@dtl@separator
            \@dtl@delimiter\@dtl@key\@dtl@delimiter}%
        }%
      }%
      {%
        \ifdefempty{\@dtl@header}%
        {%
          \protected@edef\@dtl@header{\@dtl@key}%
        }%
        {%
          \toks@=\expandafter{\@dtl@header}%
          \protected@edef\@dtl@header{\the\toks@
            \@dtl@separator\@dtl@key}%
        }%
      }%
    }%
    \protected@write\@dtl@write{}{\@dtl@header}%
    \@sDTLforeach{#1}{}%
    {%
      \def\@dtl@row{}%
      \DTLforeachkeyinrow{\@dtl@val}%
      {%
        \IfSubStringInString{\@dtl@separator}{\@dtl@val}%
        {%
          \ifdefempty{\@dtl@row}%
          {%
            \protected@edef\@dtl@row{%
              \@dtl@delimiter\@dtl@val\@dtl@delimiter}%
          }%
          {%
            \toks@=\expandafter{\@dtl@row}%
            \protected@edef\@dtl@row{\the\toks@\@dtl@separator
              \@dtl@delimiter\@dtl@val\@dtl@delimiter}%
          }%
        }%
        {%
          \ifdefempty{\@dtl@row}%
          {%
            \protected@edef\@dtl@row{\@dtl@val}%
          }%
          {%
            \toks@=\expandafter{\@dtl@row}%
            \protected@edef\@dtl@row{\the\toks@\@dtl@separator
              \@dtl@val}%
          }%
        }%
      }%
        \protected@write\@dtl@write{}{\@dtl@row}%
    }%
    \closeout\@dtl@write
  }%
  {%
    \PackageError{datatool}{Can't save database `#1': no such
      database}{}%
  }%
}
\newcommand*{\DTLsavetexdb}[2]{%
  \DTLifdbexists{#1}%
  {%
    \openout\@dtl@write=#2\relax
    \protected@write\@dtl@write{}{\string\DTLnewdb{#1}}%
    \@sDTLforeach{#1}{}%
    {%
      \protected@write\@dtl@write{}{\string\DTLnewrow*{#1}}%
      \DTLforeachkeyinrow{\@dtl@val}%
      {%
        \DTLifnull{\@dtl@val}%
        {\def\@dtl@val{}}%
        {}%
        \protected@write\@dtl@write{}{%
          \string\DTLnewdbentry*{#1}{\dtlkey}{\@dtl@val}}%
      }%
    }%
    \dtlforeachkey(\@dtl@k,\@dtl@c,\@dtl@t,\@dtl@h)\in{#1}\do
    {%
      \@onelevel@sanitize\@dtl@h
      \protected@write\@dtl@write{}{%
        \string\DTLsetheader*{#1}{\@dtl@k}{\@dtl@h}}%
    }%
    \protected@write{\@dtl@write}{}{\string\def\string\dtllastloadeddb{#1}}%
    \closeout\@dtl@write
  }%
  {%
    \PackageError{datatool}{Can't save database `#1': no such
      database}{}%
  }%
}
\newcommand*{\dtl@saverawdbhook}{}
\newcommand*{\DTLsaverawdb}[2]{%
  \DTLifdbexists{#1}%
  {%
    \openout\@dtl@write=#2\relax
    \protected@write{\@dtl@write}{}{%
      \string\DTLifdbexists{#1}\expandafter\@gobble\string\%^^J%
      {%
         \string\PackageError{datatool}{Database `#1' ^^Jalready exists}{}%
         \expandafter\@gobble\string\%^^J%
         \string\aftergroup\string\endinput
      }%
      {%
      }\expandafter\@gobble\string\%
    }%
    {%
      \def\db@row@elt@w{\expandafter\@gobble\string\%^^J\string\db@row@elt@w\space}%
      \def\db@row@elt@end@{\expandafter\@gobble\string\%^^J\string\db@row@elt@end@\space}%
      \def\db@row@id@w{\expandafter\@gobble\string\%^^J\string\db@row@id@w\space}%
      \def\db@row@id@end@{\expandafter\@gobble\string\%^^J\string\db@row@id@end@\space}%
      \def\db@col@elt@w{\expandafter\@gobble\string\%^^J\string\db@col@elt@w\space}%
      \def\db@col@elt@end@{\expandafter\@gobble\string\%^^J\string\db@col@elt@end@\space}%
      \def\db@col@id@w{\expandafter\@gobble\string\%^^J\string\db@col@id@w\space}%
      \def\db@col@id@end@{\expandafter\@gobble\string\%^^J\string\db@col@id@end@\space}%
      \def\db@plist@elt@w{\expandafter\@gobble\string\%^^J\string\db@plist@elt@w\space}%
      \def\db@plist@elt@end@{\expandafter\@gobble\string\%^^J\string\db@plist@elt@end@\space}%
      \def\db@key@id@w{\expandafter\@gobble\string\%^^J\string\db@key@id@w\space}%
      \def\db@key@id@end@{\expandafter\@gobble\string\%^^J\string\db@key@id@end@\space}%
      \def\db@type@id@w{\expandafter\@gobble\string\%^^J\string\db@type@id@w\space}%
      \def\db@type@id@end@{\expandafter\@gobble\string\%^^J\string\db@type@id@end@\space}%
      \def\db@header@id@w{\expandafter\@gobble\string\%^^J\string\db@header@id@w\space}%
      \def\db@header@id@end@{\expandafter\@gobble\string\%^^J\string\db@header@id@end@\space}%
      \protected@write{\@dtl@write}{}{\string\bgroup\string\makeatletter}%
      \protected@write{\@dtl@write}{}{%
        \string\dtl@message{Reconstructing database^^J`#1'}%
        \expandafter\@gobble\string\%}%
      \protected@write{\@dtl@write}{}{%
       \string\expandafter
       \string\global\string\expandafter^^J\string\newtoks
       \string\csname\space dtlkeys@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{%
        \string\expandafter
        \string\global^^J
        \string\csname\space dtlkeys@#1\string\endcsname
       =\expandafter\@gobble\string\{\expandafter\@gobble\string\%}%
      \expandafter\protected@xdef\csname dtl@rawwritedbkeys@#1\endcsname{%
        \the\csname dtlkeys@#1\endcsname}%
      \protected@write{\@dtl@write}{}{\csname dtl@rawwritedbkeys@#1\endcsname}%
      \protected@write{\@dtl@write}{}%
         {\expandafter\@gobble\string\}\expandafter\@gobble\string\%}%
      \dtl@saverawdbhook
      \protected@write{\@dtl@write}{}{%
       \string\expandafter\string\global
       \string\expandafter^^J\string\newtoks
         \string\csname\space dtldb@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{%
        \string\expandafter
        \string\global^^J\string\csname\space dtldb@#1\string\endcsname
       =\expandafter\@gobble\string\{\expandafter\@gobble\string\%}%
      \expandafter\protected@xdef\csname dtl@rawwritedb@#1\endcsname{\the\csname dtldb@#1\endcsname}%
      \protected@write{\@dtl@write}{}{\csname dtl@rawwritedb@#1\endcsname}%
      \protected@write{\@dtl@write}{}{\expandafter\@gobble\string\}\expandafter\@gobble\string\%}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\expandafter\string\newcount
       \string\csname\space dtlrows@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\csname\space dtlrows@#1\string\endcsname
        =\expandafter\number\csname dtlrows@#1\endcsname\string\relax}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\expandafter\string\newcount
       \string\csname\space dtlcols@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\csname\space dtlcols@#1\string\endcsname
        =\expandafter\number\csname dtlcols@#1\endcsname\string\relax}%
    \dtlforeachkey(\@dtl@key,\@dtl@col,\@dtl@type,\@dtl@head)\in{#1}\do
    {%
      \edef\dtl@tmp{%
        \string\expandafter^^J
        \string\gdef
        \string\csname\space dtl@ci@#1@\@dtl@key\string\endcsname
        {\csname dtl@ci@#1@\@dtl@key\endcsname}\expandafter\@gobble\string\%
      }%
      \expandafter\write\expandafter\@dtl@write\expandafter{\dtl@tmp}%
    }%
      \protected@write{\@dtl@write}{}{\string\egroup}%
    }%
    \protected@write{\@dtl@write}{}{\string\def\string\dtllastloadeddb{#1}}%
    \closeout\@dtl@write
  }%
  {%
    \PackageError{datatool}{Can't save database `#1': no such
      database}{}%
  }%
}
\newcommand*{\DTLprotectedsaverawdb}[2]{%
  \DTLifdbexists{#1}%
  {%
    \openout\@dtl@write=#2\relax
    \protected@write{\@dtl@write}{}{%
      \string\DTLifdbexists{#1}\expandafter\@gobble\string\%^^J%
      {%
         \string\PackageError{datatool}{Database `#1' ^^Jalready exists}{}%
         \expandafter\@gobble\string\%^^J%
         \string\aftergroup\string\endinput
      }%
      {%
      }\expandafter\@gobble\string\%
    }%
    {%
      \protected@write{\@dtl@write}{}{\string\bgroup\string\makeatletter}%
      \protected@write{\@dtl@write}{}{\string\dtl@message{Reconstructing database
        ^^J`#1'}\expandafter\@gobble\string\%}%
      \protected@write{\@dtl@write}{}{%
       \string\expandafter
       \string\global\string\expandafter^^J\string\newtoks
       \string\csname\space dtlkeys@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{%
        \string\expandafter
        \string\global^^J
        \string\csname\space dtlkeys@#1\string\endcsname
       =\expandafter\@gobble\string\{\expandafter\@gobble\string\%}%
      \edef\dtl@rawwrite@keys{\the\csname dtlkeys@#1\endcsname}%
      \@onelevel@sanitize\dtl@rawwrite@keys
      \expandafter\write\expandafter\@dtl@write\expandafter
         {\dtl@rawwrite@keys\expandafter\@gobble\string\}}%
      \protected@write{\@dtl@write}{}{%
       \string\expandafter\string\global
       \string\expandafter^^J\string\newtoks
         \string\csname\space dtldb@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{%
        \string\expandafter
        \string\global^^J\string\csname\space dtldb@#1\string\endcsname
       =\expandafter\@gobble\string\{\expandafter\@gobble\string\%}%
      \edef\dtl@rawwrite@db{\the\csname dtldb@#1\endcsname}%
      \@onelevel@sanitize\dtl@rawwrite@db
      \expandafter\write\expandafter\@dtl@write\expandafter
         {\dtl@rawwrite@db\expandafter\@gobble\string\}}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\expandafter\string\newcount
       \string\csname\space dtlrows@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\csname\space dtlrows@#1\string\endcsname
        =\expandafter\number\csname dtlrows@#1\endcsname\string\relax}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\expandafter\string\newcount
       \string\csname\space dtlcols@#1\string\endcsname}%
      \protected@write{\@dtl@write}{}{\string\expandafter\string\global^^J
       \string\csname\space dtlcols@#1\string\endcsname
        =\expandafter\number\csname dtlcols@#1\endcsname\string\relax}%
    \dtlforeachkey(\@dtl@key,\@dtl@col,\@dtl@type,\@dtl@head)\in{#1}\do
    {%
      \edef\dtl@tmp{%
        \string\expandafter^^J
        \string\gdef
        \string\csname\space dtl@ci@#1@\@dtl@key\string\endcsname
        {\csname dtl@ci@#1@\@dtl@key\endcsname}\expandafter\@gobble\string\%
      }%
      \expandafter\write\expandafter\@dtl@write\expandafter{\dtl@tmp}%
    }%
      \protected@write{\@dtl@write}{}{\string\egroup}%
    }%
    \protected@write{\@dtl@write}{}{\string\def\string\dtllastloadeddb{#1}}%
    \closeout\@dtl@write
  }%
  {%
    \PackageError{datatool}{Can't save database `#1': no such
      database}{}%
  }%
}
\newcommand*{\DTLloaddbtex}[2]{%
  \IfFileExists{#2}%
  {%
    \input{#2}%
    \ifdef#1%
    {%
      \PackageError{datatool}{Command \string#1\space is already defined}%
      {}%
    }%
    {%
      \let#1\dtllastloadeddb
    }%
  }%
  {%
    \PackageError{datatool}{File `#2' doesn't exist.}{}%
  }%
}
\newread\@dtl@read
\newcount\dtl@entrycr
\define@boolkey{loaddb}[dtl]{noheader}[true]{}
\define@boolkey{loaddb}[dtl]{autokeys}[true]{}
\dtlautokeysfalse
\define@key{loaddb}{keys}{%
  \dtl@entrycr=0\relax
  \@for\@dtl@key:=#1\do
  {%
    \advance\dtl@entrycr by 1\relax
    \expandafter
      \edef\csname @dtl@inky@\romannumeral\dtl@entrycr\endcsname{%
        \@dtl@key}%
  }%
}
\define@key{loaddb}{headers}{%
  \dtl@entrycr=0\relax
  \@for\@dtl@head:=#1\do
  {%
    \advance\dtl@entrycr by 1\relax
    \toks@=\expandafter{\@dtl@head}%
    \expandafter
      \edef\csname @dtl@inhd@\romannumeral\dtl@entrycr\endcsname{%
        \the\toks@}%
  }%
}
\newcount{\dtl@omitlines}
\define@key{loaddb}{omitlines}{\dtl@omitlines=#1\relax}
\newcommand*{\dtldefaultkey}{Column}
\newcommand*{\@dtl@readline}[2]{%
  \read#1 to #2%
  \ifdefempty{#2}%
  {%
  }%
  {%
    \dtl@trim#2%
  }%
}
\newcommand*{\@dtl@readrawline}[2]{%
  \@dtl@rawread#1 to #2%
  \dtl@trim#2%
  \dtl@domappings\@dtl@line
}
\newif\ifDTLnewdbonload
\DTLnewdbonloadtrue
\newcommand*{\DTLloaddb}{%
  \let\@dtl@doreadline\@dtl@readline
  \@dtlloaddb
}
\newcommand*{\@dtlloaddb}[3][]{%
  \IfFileExists{#3}{%
  \begingroup
    \catcode`\"12\relax
     \dtlnoheaderfalse
     \setkeys{loaddb}{#1}%
    \openin\@dtl@read=#3%
    \dtl@message{Reading `#3'}%
    \loop
    \ifnum \dtl@omitlines > \z@
      \advance\dtl@omitlines by \m@ne
      \read\@dtl@read to \@dtl@line
    \repeat
    \ifDTLnewdbonload
     \DTLnewdb{#2}%
    \fi
    \ifeof\@dtl@read
      \PackageWarning{datatool}{File `#3' has no data}%
    \else
      \ifdtlnoheader
      \else
        \loop
          \@dtl@conditionfalse
          \ifeof\@dtl@read
          \else
            \@dtl@doreadline\@dtl@read\@dtl@line
            \ifdefempty{\@dtl@line}%
            {%
              \@dtl@conditiontrue
            }%
            {%
            }%
          \fi
        \if@dtl@condition
        \repeat
        \protected@edef\@dtl@lin@{%
           \@dtl@separator\@dtl@line\@dtl@separator}%
        \dtl@entrycr=0\relax
       \loop
        \expandafter\@dtl@lopoff\@dtl@lin@\to\@dtl@lin@\@dtl@key
        \advance\dtl@entrycr by 1\relax
        \ifdtlautokeys
          \csedef{@dtl@inky@\romannumeral\dtl@entrycr}%
             {\dtldefaultkey\number\dtl@entrycr}%
        \else
          \ifdefempty{\@dtl@key}%
          {%
            \edef\@dtl@key{\dtldefaultkey\number\dtl@entrycr}%
          }%
          {}%
        \fi
        \expandafter\@dtl@toks\expandafter{\@dtl@key}%
        \@ifundefined{@dtl@inky@\romannumeral\dtl@entrycr}%
        {%
          \expandafter
            \edef\csname @dtl@inky@\romannumeral
              \dtl@entrycr\endcsname{\the\@dtl@toks}%
        }%
        {%
          \@ifundefined{@dtl@inhd@\romannumeral\dtl@entrycr}%
          {%
            \expandafter
              \edef\csname @dtl@inhd@\romannumeral
                \dtl@entrycr\endcsname{\the\@dtl@toks}%
          }%
          {}%
        }%
        \ifx\@dtl@lin@\@dtl@separator
          \@dtl@conditionfalse
        \else
          \@dtl@conditiontrue
        \fi
       \if@dtl@condition
       \repeat
      \fi
       \ifeof\@dtl@read
          \ifdtlnoheader
            \PackageWarning{datatool}{No data in `#3'}%
          \else
            \PackageWarning{datatool}{Only header row found in `#3'}%
          \fi
       \else
         \@dtl@conditiontrue
         \loop
          \@dtl@doreadline\@dtl@read\@dtl@line
           \ifdefempty{\@dtl@line}%
           {%
           }%
           {%
             \@sDTLnewrow{#2}%
             \expandafter\@dtl@toks\expandafter{\@dtl@line}%
             \edef\@dtl@lin@{\@dtl@separator\the\@dtl@toks
               \@dtl@separator}%
             \dtl@entrycr=0\relax
             {%
               \@dtl@conditiontrue
               \loop
                 \expandafter\@dtl@lopoff\@dtl@lin@\to
                   \@dtl@lin@\@dtl@thisentry
                 \advance\dtl@entrycr by 1\relax
                 \@ifundefined{@dtl@inky@\romannumeral\dtl@entrycr}%
                 {%
                   \edef\@dtl@thiskey{\dtldefaultkey
                     \number\dtl@entrycr}%
                   \expandafter\let
                     \csname @dtl@inky@\romannumeral
                       \dtl@entrycr\endcsname\@dtl@thiskey
                 }%
                 {%
                   \edef\@dtl@thiskey{%
                     \csname @dtl@inky@\romannumeral
                       \dtl@entrycr\endcsname}%
                 }%
                 \expandafter\@dtl@toks\expandafter{\@dtl@thisentry}%
                 \edef\@do@dtlnewentry{\noexpand\@sDTLnewdbentry
                   {#2}{\@dtl@thiskey}{\the\@dtl@toks}}%
                 \@do@dtlnewentry
                 \ifx\@dtl@lin@\@dtl@separator
                   \@dtl@conditionfalse
                 \fi
               \if@dtl@condition
               \repeat
             }%
         }%
         \ifeof\@dtl@read \@dtl@conditionfalse\fi
         \if@dtl@condition
         \repeat
       \fi
    \fi
    \closein\@dtl@read
     \edef\@dtl@maxcols{\expandafter
       \number\csname dtlcols@#2\endcsname}%
     \dtlgforint\dtl@entrycr=1\to\@dtl@maxcols\step1\do
     {%
       \@ifundefined{@dtl@inhd@\romannumeral\dtl@entrycr}%
       {}%
       {%
          \expandafter\let\expandafter\@dtl@head
            \csname @dtl@inhd@\romannumeral\dtl@entrycr\endcsname
          \@dtl@toks=\expandafter{\@dtl@head}%
          \edef\@dtl@dosetheader{\noexpand\@dtl@setheaderforindex
            {#2}{\number\dtl@entrycr}{\the\@dtl@toks}}%
          \@dtl@dosetheader
       }%
     }%
  \endgroup
  }{%
    \PackageError{datatool}{Can't load database `#2' (file `#3'
    doesn't exist)}{}%
  }%
}
\newcommand{\dtl@trim}[1]{%
  \def\@dtl@trmstr{}%
  \expandafter\@dtl@starttrim#1\@nil
  \let#1=\@dtl@trmstr
}
\long\def\@dtl@starttrim#1#2{%
  \dtl@ifsingle{#2}%
  {%
    \def\@dtl@tmpB{#2}%
  }%
  {%
    \def\@dtl@tmpB{{#2}}%
  }%
  \ifx\par#1%
   \edef\@dtl@dotrim{\noexpand\@dtl@trim{} \expandonce\@dtl@tmpB}%
  \else
    \dtl@ifsingle{#1}%
    {%
      \def\@dtl@tmpA{#1}%
    }%
    {%
      \def\@dtl@tmpA{{#1}}%
    }%
    \ifx\@dtl@tmpB\@nnil
      \def\@dtl@dotrim{}%
      \let\@dtl@trmstr\@dtl@tmpA
    \else
      \edef\@dtl@dotrim{\noexpand\@dtl@trim
         \expandonce\@dtl@tmpA\expandonce\@dtl@tmpB}%
    \fi
  \fi
  \@dtl@dotrim
}
\long\def\@dtl@trim#1 \@nil{\long\def\@dtl@trmstr{#1}}
\newcommand*\DTLloadrawdb{%
  \let\@dtl@doreadline\@dtl@readrawline
  \@dtlloaddb
}
\begingroup
\catcode`\%=\active
\catcode`$=\active
\catcode`&=\active
\catcode`~=\active
\catcode`_=\active
\catcode`^=\active
\catcode`#=\active
\catcode`?=6\relax
\catcode`<=1\relax
\catcode`>=2\relax
\catcode`\{=\active
\catcode`\}=\active
\gdef\@dtl@rawread?1to?2<\relax
<<\catcode`\%=\active
\catcode`$=\active
\catcode`&=\active
\catcode`~=\active
\catcode`_=\active
\catcode`^=\active
\catcode`#=\active
\catcode`\{=\active
\catcode`\}=\active
\def%<\noexpand\%>\relax
\def$<\noexpand\$>\relax
\def&<\&>\relax
\def#<\#>\relax
\def~<\noexpand\textasciitilde>\relax
\def_<\noexpand\_>\relax
\def^<\noexpand\textasciicircum>\relax
\@dtl@activatebraces
\@dtl@doreadraw?1?2>>>
\gdef\@dtl@doreadraw?1?2<\relax
\read?1 to \tmp
\xdef?2<\tmp>\relax
>
\endgroup
\begingroup
\catcode`\{=\active
\catcode`\}=\active
\catcode`<=1\relax
\catcode`>=2\relax
\gdef\@dtl@activatebraces<%
 \catcode`\{=\active
 \catcode`\}=\active
 \def{<\noexpand\{>%
 \def}<\noexpand\}>%
>%
\endgroup
\newcommand*{\DTLrawmap}[2]{%
  \expandafter\@dtl@toks\expandafter{\@dtl@rawmappings}%
  \ifdefempty{\@dtl@rawmappings}%
  {%
    \def\@dtl@rawmappings{{#1}{#2}}%
  }%
  {%
    \def\@dtl@tmp{{#1}{#2}}%
    \protected@edef\@dtl@rawmappings{\the\@dtl@toks,\@dtl@tmp}%
  }%
}
\newcommand*{\@dtl@rawmappings}{}
\newcommand*{\dtl@domappings}[1]{%
  \@for\@dtl@map:=\@dtl@rawmappings\do{%
    \expandafter\DTLsubstituteall\expandafter#1\@dtl@map
  }%
}
\newcommand*{\dtlshowdb}[1]{%
  \expandafter\showthe\csname dtldb@#1\endcsname
}
\newcommand*{\dtlshowdbkeys}[1]{%
  \expandafter\showthe\csname dtlkeys@#1\endcsname
}
\newcommand*{\dtlshowtype}[2]{%
  \DTLgetdatatype{\@dtl@type}{#1}{#2}\show\@dtl@type
}
\endinput
%%
%% End of file `datatool.sty'.