--- /dev/null
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+%      File: invoice.def
+%      Author: Oliver Corff
+%      Date: 2003-12-12
+%      
+%      This file contains messages, labels etc. in English, German
+%      and other languages.
+%
+%      This file cannot be used alone but is called by invoice.sty
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+%      This file is the only file of this package which may be
+%      modified without renaming it.
+%
+%      Adding a new language to labels is simple. Follow the 
+%      instructions at line 275 of this file, and, please!,
+%      do not forget to send the result to
+%
+%      corff@zedat.fu-berlin.de or oliver.corff@email.de
+%
+%      Credits for language contributions given in invoice.sty.
+%
+%      Thank you very much for your support of "invoice".
+%
+%      Oliver Corff,
+%
+%      Berlin, Guangzhou, Ulaanbaatar, Zagreb, Shenyang, Shanghai 2003
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% English definitions are default. Other
+% languages are selected automatically.
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Warning messages for non-fatal situations
+%
+\def\InvoiceCompleted  {Invoice completed. Command ignored.}%
+\def\FeeSTExists       {You cannot print a fee subtotal twice!}%
+\def\ProjectEmpty      {Project empty. No subtotal possible!}%
+\def\ProjectSTExists   {You cannot print a project subtotal twice!}%
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Error messages for fatal situations
+%
+\def\InternalError                     {Package `invoice': Internal error!}%
+%
+\def\NoInvoiceNesting                  {Invoices cannot be nested.
+                                        Close this invoice first!}%
+%
+\def\InvoiceCompletedNoExpense         {Invoice closed.
+                                        No new expense item allowed.
+                                        Start a new invoice
+                                        first!}%
+%
+\def\InvoiceCompletedNoFee             {Invoice closed.
+                                        No new fee item allowed.
+                                        Start a new invoice
+                                        first!}%
+%
+\def\InvoiceCompletedNoFeeST           {Invoice closed.
+                                        No fee subtotal allowed.
+                                        Start a new invoice
+                                        first!}%
+%
+\def\InvoiceCompletedNoProject         {Invoice closed.
+                                        No new project allowed.
+                                        Start a new invoice
+                                        first!}%
+%
+\def\InvoiceCompletedNoProjectST       {Invoice closed.
+                                        No project subtotal allowed.
+                                        Start a new invoice
+                                        first!}%
+%
+\def\MissingFee                                {No fee given.
+                                        You must charge at least one fee!}%
+%
+\def\MissingInputData                  {Missing input data!}%
+%
+\def\MissingOpening                    {You must open an invoice!}%
+%
+\def\MissingProject                    {No project given.
+                                        Open a project first!}%
+%
+\def\FeeBeforeExpense                  {Fees are charged first.
+                                        Expenses follow.}%
+%
+\def\NoProjectNesting                  {Projects cannot be nested.
+                                        Close this project first!}%
+%
+\def\ProjectCompletedNoExpense         {Project closed.
+                                        No new expense item allowed.
+                                        Start a new project
+                                        first!}%
+%
+\def\ProjectCompletedNoFee             {Project closed.
+                                        No new fee item allowed.
+                                        Start a new project
+                                        first!}%
+%
+\def\KOMA                              {Users of KOMA-Script's scrlettr.cls%
+                                        ^^Jsay `invoiceno' for the scrlettr
+                                        invoice command,^^Jand `invoiceenv'
+                                        for the invoice environment!}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Labels. These ones are available in translation, too. See below.
+%
+\def\Warning                           {Warning}%
+\def\Error                             {Error}%
+\def\Expense                           {Expense}%
+\def\Amount                            {Amount}%
+\def\Currency                          {Currency}%
+\def\Factor                            {Factor}%
+\def\Activity                          {Activity}%
+\def\Count                             {Count}%
+\def\UnitRate                          {Rate/Unit}%
+\def\Fees                              {Fees}%
+\def\VAT                               {VAT}%
+\def\Expenses                          {Expenses}%
+\def\SumFees                           {Sum \Fees}%
+\def\SumVAT                            {Sum \VAT}%
+\def\SumExpenses                       {Sum \Expenses}%
+\def\SubtotalFee                       {Subtotal \Fees}%
+\def\SubtotalExpenses                  {Subtotal \Expenses}%
+\def\SubtotalProject                   {Subtotal \Project}%
+
+\def\Total                             {Total}%
+%
+% This is German.
+%
+\ifx\l@german\undefined
+       \message{^^J(invoice) \Warning:
+               Language \string\l@german\space unknown.^^J^^J}
+\else
+\ifnum\number\invoice@language=\number\l@german
+       \def\Warning                    {Warnung}%
+       \def\Error                      {Fehler}%
+       \def\Expense                    {Auslage}%
+       \def\Amount                     {Betrag}%
+       \def\Currency                   {W\"ahrung}%
+       \def\Factor                     {Faktor}%
+       \def\Activity                   {Aktivit\"at}%
+       \def\Count                      {Anzahl}%
+       \def\UnitRate                   {Rate/Einheit}%
+       \def\Fees                       {Honorare}%
+       \def\VAT                        {MWSt.}%
+       \def\Expenses                   {Auslagen}%
+       \def\SumFees                    {Summe \Fees}%
+       \def\SumVAT                     {Summe \VAT}%
+       \def\SumExpenses                {Summe \Expenses}%
+       \def\SubtotalFee                {Zwischensumme \Fees}%
+       \def\SubtotalExpenses           {Zwischensumme \Expenses}%
+       \def\SubtotalProject            {Zwischensumme \Project}%
+       \def\Total                      {Gesamtsumme}%
+\fi\fi
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% This is Dutch.
+%
+\ifx\l@dutch\undefined
+       \message{^^J(invoice) \Warning:
+               Language \string\l@dutch\space unknown.^^J^^J}
+\else
+\ifnum\number\invoice@language=\number\l@dutch
+       \def\Warning                    {Waarschuwing}%
+       \def\Error                      {Fout}% 
+       \def\Expense                    {Onkosten}% 
+       \def\Amount                     {Bedrag}% 
+       \def\Currency                   {Valuta}% 
+       \def\Factor                     {Faktor}% 
+       \def\Activity                   {Activiteit}% 
+       \def\Count                      {Aantal}% 
+       \def\UnitRate                   {Prijs/Eenheid}% 
+       \def\Fees                       {Honorarium}% 
+       \def\VAT                        {BTW}% 
+       \def\Expenses                   {Onkosten}% 
+       \def\SumFees                    {Totaal \Fees}% 
+       \def\SumVAT                     {Totaal \VAT}% 
+       \def\SumExpenses                {Totaal \Expenses}% 
+       \def\SubtotalFee                {Subtotaal \Fees}% 
+       \def\SubtotalExpenses           {Subtotaal \Expenses}% 
+       \def\SubtotalProject            {Subtotaal \Project}% 
+       \def\Total                      {Totaal}% 
+\fi\fi
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% This is French.
+%
+\ifx\l@french\undefined
+       \message{^^J(invoice) \Warning:
+               Language \string\l@french\space unknown.^^J^^J}
+\else
+\ifnum\number\invoice@language=\number\l@french
+       \def\Warning                    {Avertissement}%
+       \def\Error                      {Erreur}%
+       \def\Expense                    {D\'epense}%
+       \def\Amount                     {Montant}%
+       \def\Currency                   {Devise}%
+       \def\Factor                     {Facteur}%
+       \def\Activity                   {Activit\'e}%
+       \def\Count                      {Quantit\'e}%
+       \def\UnitRate                   {Prix/Unit\'e}%
+       \def\Fees                       {Honoraires}%
+       \def\VAT                        {TVA}%
+       \def\Expenses                   {D\'epenses}%
+       \def\SumFees                    {Total \Fees}%
+       \def\SumVAT                     {Total \VAT}%
+       \def\SumExpenses                {Total \Expenses}%
+       \def\SubtotalFee                {Sous-Total \Fees}%
+       \def\SubtotalExpenses           {Sous-Total \Expenses}%
+       \def\SubtotalProject            {Sous-Total \Project}%
+       \def\Total                      {Total}%
+\fi\fi
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% This is Afrikaans.
+%
+\ifx\l@afrikaans\undefined
+       \message{^^J(invoice) \Warning:
+               Language \string\l@afrikaans\space unknown.^^J^^J}
+\else
+\ifnum\number\invoice@language=\number\l@afrikaans
+       \def\Warning                    {Waarskuwing}  
+       \def\Error                      {Fout}  
+       \def\Expense                    {Onkostes}  
+       \def\Amount                     {Bedrag}  
+       \def\Currency                   {Valuta}  
+       \def\Factor                     {Faktor}  
+       \def\Activity                   {Aktiwiteit}  
+       \def\Count                      {Aantal ure}  
+       \def\UnitRate                   {Tarief}  
+       \def\Fees                       {Fooie}  
+       \def\VAT                        {BTW}  
+       \def\Expenses                   {Uitgawes}  
+       \def\SumFees                    {Totaal Fooie}  
+       \def\SumVAT                     {Totaal BTW}  
+       \def\SumExpenses                {Totaal Uitgawes}  
+       \def\SubtotalFee                {Subtotaal \Fees} 
+       \def\SubtotalExpenses           {Subtotaal \Expenses}  
+       \def\SubtotalProject            {Subtotaal \Project}  
+       \def\Total                      {Totaal}  
+\fi\fi
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% This is Italian.
+%
+\ifx\l@italian\undefined
+       \message{^^J(invoice) \Warning:
+               Language \string\l@italian\space unknown.^^J^^J}
+\else
+\ifnum\number\invoice@language=\number\l@italian
+       \def\Warning                    {Avvertenza}%
+       \def\Error                      {Errore}%
+       \def\Expense                    {Spesa}%
+       \def\Amount                     {Ammontare}%
+       \def\Currency                   {Valuta}%
+       \def\Factor                     {Fattore}%
+       \def\Activity                   {Attivit\'a}%
+       \def\Count                      {Quantit\'a}%
+       \def\UnitRate                   {Prezzo/Unit\'a}%
+       \def\Fees                       {Onorario}%
+       \def\VAT                        {IVA}%
+       \def\Expenses                   {Spese}%
+       \def\SumFees                    {Totale onorario}%
+       \def\SumVAT                     {Totale IVA}%
+       \def\SumExpenses                {Totale spese}%
+       \def\SubtotalFee                {Subtotale onorario}%
+       \def\SubtotalExpenses           {Subtotale spese}%
+       \def\SubtotalProject            {Subtotale progetto}%
+       \def\Total                      {Totale}%
+\fi\fi
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% 
+% How to add new label languages to the `invoice' package:
+%
+% 1. Copy all following lines after this explanation
+%    and insert them above this comment.
+%
+% 2. Remove all comment symbols at the beginning of the lines.
+%
+% 3. Fill the empty parentheses {} with the appropriate
+%    translations.
+%
+% 4. Enter the correct internal language name used by LaTeX2e
+%    into the condition of the \ifnum clause.
+%
+% 5. Please do not forget to mail the resulting file to
+%    corff@zedat.fu-berlin.de or oliver.corff@email.de
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Name correct language name here --v--
+% and   --v--!
+%\ifx\l@german\undefined
+%      \message{^^J(invoice) \Warning:
+%              Language \string\l@german\space unknown.^^J^^J}
+%\else
+%\ifnum\number\invoice@language=\number\l@german
+%      \def\Warning                    {} % Enter translations here!
+%      \def\Error                      {} % 
+%      \def\Expense                    {} % 
+%      \def\Amount                     {} % 
+%      \def\Currency                   {} % 
+%      \def\Factor                     {} % 
+%      \def\Activity                   {} % 
+%      \def\Count                      {} % 
+%      \def\UnitRate                   {} % 
+%      \def\Fees                       {} % 
+%      \def\VAT                        {} % 
+%      \def\Expenses                   {} % 
+%      \def\SumFees                    {} % 
+%      \def\SumVAT                     {} % 
+%      \def\SumExpenses                {} % 
+%      \def\SubtotalFee                {} % 
+%      \def\SubtotalExpenses           {} % 
+%      \def\SubtotalProject            {} % 
+%      \def\Total                      {} % 
+%\fi
 
--- /dev/null
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%        Datei: invoice.sty
+%        Autor: Oliver Corff
+%      Contact: corff@zedat.fu-berlin.de, oliver.corff@email.de
+%        Datum: December 16, 2003
+%      Version: 0.7
+%    Copyright: Ulaanbaatar, Beijing, Berlin, Zagreb, Shenyang, Shanghai
+%  Description: This collection of macros provides
+%               tools for generating complex invoices
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Corrections, suggestions and contributions by:
+%%%%%%
+% Jacopo, May 2003
+% e-mail: jacopo@
+%
+%   Contributed labels in Italian.
+%
+%%%%%%
+% O. Corff, July 2003 
+% 
+%   fixed one nasty spacing bug, simplified internal table 
+%   construction (table now has five instead of six columns,
+%   the second of which was never used).
+%
+%%%%%%
+% Johann Spies, January 21, 2002
+% e-mail: jspies@sun.ac.za
+%
+%   Hinted that \Subtotal Project should show the project name
+%   rather than just `Project'.
+%
+%   Contributed labels in Afrikaans.
+%
+%%%%%%
+% Robin Fairbairns, December 6, 2001
+% 
+%   Hinted that the dollar sign can also be printed by saying
+%   \string$.
+%
+%%%%%%
+% Vincent Tougait, France, November 27, 2001
+%
+%   Pointed out that fractions of VAT percents were not allowed.
+%   Bugfix on December 06, 2001
+%
+%%%%%%
+% Fred Donck, The Hague, The Netherlands, October, 2001
+% e-mail: fd0@donck.com
+%
+% Dutch labels
+%
+%%%%%%
+% Ian Wormsbecker, October 31, 2001
+%
+%   Skips the VAT lines if VAT=0
+%   Noticed that the terminal message will not accept a Dollar sign.
+%   The only workaround is to say \char`$ in \begin{invoice}{}
+%
+%%%%%%
+% Fred Donck, The Hague, The Netherlands, Sept 18, 2001
+% e-mail: fd0@donck.com
+%
+% fixed some minor issues:
+%   real arithmetic will use integer intermediate values, so
+%   some calculations failed with the \Fee{title}{rate}{amount}
+%   where \rate is not an integer
+%
+%   another fix is that in my opinion the VAT line should be 
+%   printed also even though only one project is specified
+%
+%   third fix is that the subtotal-line should not be printed 
+%   on a project with only one \Fee line
+%
+%%%%%%
+% Jacco Kok (fixed some labels),
+%
+%%%%%%
+% Thilo Barth (discussed alternative names and command clashes
+%      with KOMA Script class scrlettr.cls),
+%
+%%%%%%
+% Robert Inder (discussed general issues)
+%
+% were gladly and gratefully received and accepted.
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% -------------------     identification     -------------------
+%
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{invoice}[2003/12/16]
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% -------------------    language options    -------------------
+%
+%
+\newcount\invoice@language
+\let\invoice@language=\language
+%
+\ifx\l@english\undefined       \newlanguage\l@english \fi
+\ifx\l@german\undefined                \newlanguage\l@german \fi
+\ifx\l@dutch\undefined         \newlanguage\l@dutch \fi
+\ifx\l@french\undefined                \newlanguage\l@french \fi
+\ifx\l@afrikaans\undefined     \newlanguage\l@afrikaans \fi
+\ifx\l@italian\undefined       \newlanguage\l@italian \fi
+%
+\DeclareOption{english}{\invoice@language=\number\l@english}
+\DeclareOption{german}{\invoice@language=\number\l@german}
+\DeclareOption{dutch}{\invoice@language=\number\l@dutch}
+\DeclareOption{french}{\invoice@language=\number\l@french}
+\DeclareOption{afrikaans}{\invoice@language=\number\l@afrikaans}
+\DeclareOption{italian}{\invoice@language=\number\l@italian}
+%
+\ProcessOptions
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% -------------------      initial code      -------------------
+%
+\RequirePackage{ifthen}
+\RequirePackage{longtable}
+\RequirePackage{calc}
+\input{realcalc}
+\input{invoice.def}
+%
+\newcommand{\InvoiceVersion}{0.7}%
+\newcounter{Fee}               %
+\newcounter{VAT}               %
+%\newcounter{VAT@rate}         %
+\newcounter{Expenses}          %
+\newcounter{Discount}          % Discount item
+\newcounter{Total}             %
+\newcounter{Project}           %
+%
+\newcounter{Fee@ctr}           % Number of fees per project
+                               % no subtotal will be printed in case of
+                               % value < 2
+%
+\newcounter{Expense@ctr}       % Number of expense items per project
+                               % no subtotal will be printed in case of
+                               % value < 2
+%
+\newcounter{One@Fee}           % Individual Fee
+\newcounter{One@VAT}           % Individual VAT
+\newcounter{One@Expense}       % Individual Expense
+%
+\newcounter{ST@Fee}            % Subtotal Fee
+\newcounter{ST@VAT}            % Subtotal VAT
+\newcounter{ST@Expenses}       % Subtotal Expenses
+\newcounter{ST@Project}                % Subtotal Project
+%
+\gdef\Flag{0}%                 % State 0: Invoice not started yet
+                               % State 1: Start invoice
+                               % State 2: Start project, print title
+                               % State 3: Fee Item
+                               % State 4: Print Subtotal Fee
+                               % State 5: Expense Item
+                               % State 6: Print Subtotal Expenses
+                               % State 7: Print Subtotal Project
+                               % State 8: Print Total, Close invoice
+%
+\gdef\Project{}%               % Empty Project Name
+\def\Null{0}%
+\newif\ifVATnonzero
+% \def\BC{Euro}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%\newcommand{\my@message}[1]{\message{^^J#1^^J^^J}}
+\newcommand{\error@message}[1]{\errmessage{^^J\Error: #1^^J^^J}}
+\newcommand{\warning@message}[1]{\message{^^J\Warning: #1^^J^^J}}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\ifx\invoice\undefined                 % False if KOMA Script scrlettr.cls
+       \def\my@invoice{invoice}        % loaded. In this case one may say
+\else                                  % "invoice". If true, the environ-
+       \def\my@invoice{invoiceenv}     % ment is renamed to "invoiceenv"
+       \let\invoiceno\invoice          % and the scrlettr macro is renamed
+       \def\invoice#1{%                % to "invoiceno". Thank you, Thilo,
+               \error@message{\KOMA}}  % for this hint!
+\fi                                    %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newenvironment{\my@invoice}[2]{%
+       \setcounter{Fee@ctr}{0}%                % reset counter
+       \setcounter{Expense@ctr}{0}%            % reset counter
+       \def\Null{0}%
+       \setcounter{Project}{0}%
+       \ST@Reset\Total@Reset%
+       \def\BC{#1}%
+       \def\VAT@rate{#2}%
+       \ifx\VAT@rate\Null\VATnonzerofalse\else\VATnonzerotrue\fi%
+       \ifVATnonzero
+               \message{^^J^^JVAT is not zero!^^J^^J}%
+       \else
+               \message{^^J^^JVAT is zero!^^J^^J}%
+       \fi%
+       % The VAT is: \the\VAT@rate % Debugging Diagnostics only
+       \parindent=0cm%
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \gdef\Flag{1}%
+               \begin{center}%
+               \begin{longtable}{p{5cm}lrrr}%
+               %
+       \else \error@message{\NoInvoiceNesting}%
+       \fi}%
+% At the end of environment: 
+% Yields state 8->0, Close and complete invoice, finish tables, etc.
+{% 
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \error@message{\MissingInputData}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \ifnum\theProject>0 \ST@Fee\ST@Project\fi%
+               \Tot@l%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               \ifnum\theProject>1 \ST@Project\fi%
+               \Tot@l%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \ifnum\theProject>1 \ST@Expenses\ST@Project\fi%
+               \Tot@l%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \ifnum\theProject>1 \ST@Project\fi%
+               \Tot@l%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+               \Tot@l%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \warning@message{\InvoiceCompleted}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+       \gdef\Flag{0}%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\ProjectTitle}[1]{% Yields state 2: Start Project
+       %\gdef\NewProject{#1}
+       %
+       \ifcase\Flag% 0: Invoice not started yet
+       %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \Project@Title{#1}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \error@message{\NoProjectNesting}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \ST@Fee%
+               \ST@Project%
+               \Project@Title{#1}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               \ST@Project%
+               \Project@Title{#1}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \ST@Expenses%
+               \ST@Project%
+               \Project@Title{#1}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \ST@Project%
+               \Project@Title{#1}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+               \Project@Title{#1}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoProject}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+       \setcounter{Fee@ctr}{0}%                % reset counter
+       \setcounter{Expense@ctr}{0}%            % reset counter
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Fee}[3]{% Yields state 3, Print Fee Item
+       %
+       % #1 Contents
+       % #2 Fee per Unit
+       % #3 Unit Count
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \Fee@Title%
+               \Fee@Line{#1}{#2}{#3}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \Fee@Line{#1}{#2}{#3}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               \warning@message{\FeeSTExists}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \error@message{\FeeBeforeExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \error@message{\FeeBeforeExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+               \error@message{\ProjectCompletedNoFee}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoFee}%
+               %
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\STFee}{% Yields state 4, print subtotal remuneration
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \error@message{\MissingFee}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \Print@ST@Fees%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               \warning@message{\FeeSTExists}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \error@message{\FeeBeforeExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \error@message{\FeeBeforeExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+               \error@message{\ProjectCompletedNoFee}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\ProjectCompletedNoFee}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\EBC}[2]{% Yields state 5: Expenses in BaseCurrency 
+       %
+       % #1 Contents und Datum
+       % #2 Amount in BaseCurrency
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \Expense@Title%
+               \Expense@BaseCurrency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \ST@Fee%
+               \Expense@Title%
+               \Expense@BaseCurrency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               \Expense@Title%
+               \Expense@BaseCurrency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %   
+               \Expense@BaseCurrency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoExpense}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\EBCi}[2]{% Yields state 5: Expenses in BaseCurrency 
+       %                               But, unlike base form (no
+       %                               'invisible') this version does
+       %                               not state the item, it only
+       %                               the total amount of expenses. 
+       %
+       % #1 Contents und Datum
+       % #2 Amount in BaseCurrency
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               %\Expense@Title%
+               \Expense@Base@Currency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \ST@Fee%
+               %\Expense@Title%
+               \Expense@Base@Currency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               %\Expense@Title%
+               \Expense@Base@Currency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %   
+               \Expense@Base@Currency{#1}{#2}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoExpense}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\EFC}[5]{% Yields state 5: Expenses in ForeignCurrency
+       %
+       % #1 Contents und Datum
+       % #2 Currency
+       % #3 Amount
+       % #4 Exchange Rate
+       % #5 Amount Zielwaehrung
+       %
+       % Usage:
+       % 1. {Contents}{ForeignCurrency}{ExchangeRate}{}
+       % 2. {Contents}{ForeignCurrency}{}{BaseCurrency}
+       % 3. {Contents}{ForeignCurrency}{ExchangeRate}{BaseCurrency}
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \Expense@Title%
+               \Expense@ForeignCurrency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \ST@Fee%
+               \Expense@Title%
+               \Expense@ForeignCurrency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               \Expense@Title%
+               \Expense@ForeignCurrency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \Expense@ForeignCurrency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \error@message{\ProjectCompletedNoExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+               \error@message{\ProjectCompletedNoExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoExpense}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\EFCi}[5]{% Yields state 5: Expenses in ForeignCurrency
+       %                               But, unlike base form (no
+       %                               'invisible') this version does
+       %                               not state the item, it only
+       %                               the total amount of expenses. 
+       %
+       % #1 Contents und Datum
+       % #2 Currency
+       % #3 Amount
+       % #4 Exchange Rate
+       % #5 Amount Zielwaehrung
+       %
+       % Usage:
+       % 1. {Contents}{ForeignCurrency}{ExchangeRate}{}
+       % 2. {Contents}{ForeignCurrency}{}{BaseCurrency}
+       % 3. {Contents}{ForeignCurrency}{ExchangeRate}{BaseCurrency}
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \Expense@Title%
+               \Expense@Foreign@Currency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \ST@Fee%
+               % \Expense@Title%
+               \Expense@Foreign@Currency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               % \Expense@Title%
+               \Expense@Foreign@Currency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \Expense@Foreign@Currency{#1}{#2}{#3}{#4}{#5}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \error@message{\ProjectCompletedNoExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+               \error@message{\ProjectCompletedNoExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoExpense}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\STExpenses}{% Yields state 6: Ausgabe der ST Expenses
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+               %
+       \or     % 2: Start project, print title
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+               %
+       \or     % 3: Print remuneration item
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+               %
+       \or     % 4: Print subtotal remuneration
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \Print@ST@Expenses%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \warning@message{\ProjectCompletedNoExpense}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoExpense}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\STProject}{% Yields state 7: Ausgabe der ST Project
+       %
+       \ifcase\Flag % 0: Invoice not started yet
+               %
+               \error@message{\MissingOpening}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 1: Start invoice
+               %
+               \error@message{\MissingProject}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 2: Start project, print title
+               %
+               \warning@message{\ProjectEmpty}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 3: Print remuneration item
+               %
+               \ST@Fee%
+               \ST@Project%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 4: Print subtotal remuneration
+               %
+               \ST@Project%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 5: Expense item
+               %
+               \ST@Expenses%
+               \ST@Project%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 6: Print subtotal expenses
+               %
+               \ST@Project%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 7: Print subtotal project
+               %
+               \warning@message{\ProjectSTExists}%
+               %
+       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+       \or     % 8: Print total, close invoice
+               %
+               \error@message{\InvoiceCompletedNoProjectST}%
+               %
+       \else \error@message{\InternalError}%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Discount}[2]{%    Yields no particular state.
+       %                       Inserts discount in project total,
+       %                       names discount reason
+       %                       and amount of discount
+       %
+       \gdef\Discount@Contents{#1}%
+       \setcounter{Discount}{100 * \real{-#2}}%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Total@Reset}{%
+       \setcounter{Fee}{0}%
+       \setcounter{VAT}{0}%
+       \setcounter{Expenses}{0}%
+       \setcounter{Total}{0}%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\ST@Reset}{%
+       \setcounter{ST@Fee}{0}%
+       \setcounter{ST@VAT}{0}%
+       \setcounter{ST@Expenses}{0}%
+       \setcounter{ST@Project}{0}%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Print@Value}[1]{%
+       \Rmul\r#1{0.01}%% <- Reduce to BaseCurrency
+       \Rtrunc\r{2}\r% % <- Truncate to two digits
+       \r%             % <- Output data!
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Message@Value}[1]{%
+       \Rmul\r#1{0.01}%% <- Reduce to BaseCurrency
+       \Rtrunc\r{2}\r% % <- Truncate to two digits
+       \message{\r}%   % <- Output data!
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Project@Title}[1]{%
+       % Internal command called by \ProjectTitle.
+       %
+       \gdef\Flag{2}%
+       \gdef\Project{#1}%
+       \ST@Reset\addtocounter{Project}{1}%
+       \ifnum\theProject>1 \\\\\else\\\fi%
+       \multicolumn{5}{c}{\textbf{\large#1}}\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Fee@Title}{%
+       \\
+       \noindent\textbf{\Activity}&&\UnitRate&\Count&\Amount\ (\BC)\\
+       \hline%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Fee@Line}[3]{%
+       %
+       % #1 Contents
+       % #2 Charged Fee per Unit
+       % #3 Count
+       %
+       % Internal command, called by \Fee.
+       %
+       \gdef\Flag{3}%
+       %
+       #1                      &             &
+%
+%   next is reversed to allow real arithmetic.
+%   intermediate results are stored in integer format, so calculations are
+%   incorrect in case #2 is a real.
+%   fixed by exchanging the 1 and the 100
+%
+               \setcounter{One@Fee}{100 * \real{#2} * \real{#3} * 1}%
+%
+               \addtocounter{ST@Fee}{\theOne@Fee}%
+               \addtocounter{Fee}{\theOne@Fee}%
+               \addtocounter{Fee@ctr}{1}%          increase counter with 1
+               \Print@Value{\theOne@Fee}\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\ST@Fee}{%
+       % \gdef\Flag{4}%
+       \ifnum\theST@Fee>0%
+           \ifthenelse{\theFee@ctr>1} %            % if more than 1 \Fee line
+               {\Print@ST@Fees%                                        % print it, else
+               }%
+           {}%                                                                 % do nothing
+               \ifVATnonzero\ST@VAT@Printout\fi%
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Print@ST@Fees}{%
+       \gdef\Flag{4}%
+       \SubtotalFee &  &       &       &%      print the subtotal of fees
+               \Print@Value{\theST@Fee}\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\ST@VAT@Printout}{%
+               \VAT\ (\VAT@rate\%)      &      &       &       &%
+                       \setcounter{ST@VAT}{\theST@Fee * \real{\VAT@rate} / 100}%
+                               \Print@Value{\theST@VAT}\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Expense@BaseCurrency}[2]{%
+       #1                      & \BC           &       &       &%
+       \gdef\Flag{5}%
+       \Rmul\r{100}{#2}%
+       \setcounter{One@Expense}{1*\real{\r}}%
+       \addtocounter{ST@Expenses}{\theOne@Expense}%
+       \addtocounter{Expenses}{\theOne@Expense}%
+       \addtocounter{Expense@ctr}{1}%advance counter
+                               \Print@Value{\theOne@Expense}\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Expense@Base@Currency}[2]{%
+       \gdef\Flag{5}%
+       \Rmul\r{100}{#2}%
+       \setcounter{One@Expense}{1*\real{\r}}%
+       \addtocounter{ST@Expenses}{\theOne@Expense}%
+       \addtocounter{Expenses}{\theOne@Expense}%
+       \addtocounter{Expense@ctr}{1}%advance counter
+               &       &       &       &       \\[-1.2em]% This is an ugly kludge:
+                                                                 %     Inserting an empty line
+                                                                 % which rolls backwards
+                                                                 % makes disappear the spurious
+                                                                 % spaces caused by external
+                                                                 % routines.
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Expense@ForeignCurrency}[5]{%
+       \gdef\Flag{5}%
+       %
+       % Folgende Angaben sind moeglich:
+       % 1. {Contents}{Currency}{Amount}{Umrechnung}{  }
+       % 2. {Contents}{Currency}{Amount}{          }{BaseCurrency}
+       % 3. {Contents}{Currency}{Amount}{Umrechnung}{BaseCurrency}
+       %
+       #1       & #2   & #3    & #4&%
+       \ifthenelse{\equal{#5}{}}% Target in BaseCurrency or not?
+               {% Target not in BaseCurrency
+                       \Rmul\r{100}{#3}%
+                       \Rmul\r \r {#4}%
+               }%
+               {% Target in BaseCurrency
+                       \Rmul\r{100}{#5}%
+               }%
+       \setcounter{One@Expense}{1*\real{\r}}%
+       \addtocounter{ST@Expenses}{\theOne@Expense}%
+       \addtocounter{Expenses}{\theOne@Expense}%
+       \addtocounter{Expense@ctr}{1}%advance counter
+       \Print@Value{\theOne@Expense}%
+\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Expense@Foreign@Currency}[5]{%
+       \gdef\Flag{5}%
+       %
+       % Folgende Angaben sind moeglich:
+       % 1. {Contents}{Currency}{Amount}{Umrechnung}{  }
+       % 2. {Contents}{Currency}{Amount}{          }{BaseCurrency}
+       % 3. {Contents}{Currency}{Amount}{Umrechnung}{BaseCurrency}
+       %
+       \ifthenelse{\equal{#5}{}}% Target in BaseCurrency or not?
+               {% Target not in BaseCurrency
+                       \Rmul\r{100}{#3}%
+                       \Rmul\r\r{#4}%
+               }%
+               {% Target in BaseCurrency
+                       \Rmul\r{100}{#5}%
+               }%
+       \setcounter{One@Expense}{1*\real{\r}}%
+       \addtocounter{ST@Expenses}{\theOne@Expense}%
+       \addtocounter{Expenses}{\theOne@Expense}%
+       \addtocounter{Expense@ctr}{1}%advance counter
+               &       &       &       &       \\[-1.2em]% ugly kludge as above
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Expense@Title}{%
+       \\%
+       \textbf{\Expense}&\Currency&\Amount&\Factor &\BC\\%
+       \hline%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\ST@Expenses}{%
+       % \gdef\Flag{6}%
+       \ifnum\theST@Expenses>0%
+           \ifthenelse{\theExpense@ctr>1}%         % if more than 1 Expense line
+               {\Print@ST@Expenses}%                           % print it, else
+               {}%                                                                     % do nothing
+       \fi%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Print@ST@Expenses}{%
+       \gdef\Flag{6}%
+               &       &       &       &       \\[-1.2em]% ugly kludge as above
+       \SubtotalExpenses &     &       &       &%      print the subtotal of expenses
+               \Print@Value{\theST@Expenses}\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\ST@Project}{%
+       \gdef\Flag{7}%
+       \\
+       %\multicolumn{4}{l}{\SubtotalProject}%
+       %\let\Project\NewProject%
+       %&
+       \SubtotalProject &      &       &       & 
+                       \addtocounter{ST@Project}{\theST@Fee}%
+                       \addtocounter{ST@Project}{\theST@VAT}%
+                       \addtocounter{ST@Project}{\theST@Expenses}%
+                       \Print@Value{\theST@Project}\\
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Total@VAT@Printout}{%
+               \setcounter{VAT}{\theFee*\real{\VAT@rate}/100}%
+                       \SumVAT &       &       &       &\Print@Value{\theVAT}\\%
+}%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\newcommand{\Tot@l}{%
+       \\\hline
+       \ifnum\theFee>0 \SumFees&       &       &       &%
+                               \Print@Value{\theFee}\\ 
+               \ifVATnonzero%
+                       \Total@VAT@Printout%
+               \fi%
+       \fi%
+       \ifnum\theExpenses>0 \SumExpenses&      &       &       &%
+                               \Print@Value{\theExpenses}\\ 
+       \fi%
+       \ifnum\theDiscount=0 \else \Discount@Contents&  &       &       &%
+                               \Print@Value{\theDiscount}\\ 
+       \fi%
+       \hline\hline
+       \textbf{\Total} &       &       &       &%
+               \message{^^J\Currency: \BC}%
+               \message{^^J\VAT: \VAT@rate}%
+               \addtocounter{Total}{\theFee}%
+               \message{^^J\SumFees: }\Message@Value{\theFee}%
+               \addtocounter{Total}{\theVAT}%
+               \message{^^J\SumVAT: }\Message@Value{\theVAT}%
+               \addtocounter{Total}{\theExpenses}%
+               \message{^^J\SumExpenses: }\Message@Value{\theExpenses}%
+               \ifnum\theDiscount=0 \else %
+               \addtocounter{Total}{\theDiscount}%
+               \message{^^J\Discount@Contents: }\Message@Value{\theDiscount}%
+               \fi %
+               \textbf{\Print@Value{\theTotal}}%
+               \message{^^J\Total: }%
+                       \Message@Value{\theTotal}\message{^^J^^J}\\%
+       \end{longtable}
+       \end{center}
+       \gdef\Flag{8}%
+}
+\endinput
+% vim:ts=4:sw=4
 
--- /dev/null
+%% realcalc.tex
+%%
+%% (C) Frank Buchholz, Jan. 1993
+%% e-mail: buchholz@lusty.informatik.uni-dortmund.de
+%  User documentation: All lines starting with two %
+%  Try grep to extract these lines.
+%%
+%% Real arithmetic with big values and high precision.
+%% Calculations are done with 9 decimal digits.
+%% Usable with TeX and LaTeX.
+%%
+%% Parameter:
+%%
+%%     <macro> Macro, witch catches the result.
+%%     <value> String or macro witch expands to a value in the range 
+%%                 from -2147483647.999999999 to 2147483647.999999999
+%%     <precision> Number from 0 to 9
+%%
+%% Functions:
+%%
+
+% Don't read this file twice
+\ifx\Radd\undefined \else \endinput \fi
+
+% Make "@" be a letters
+\chardef\catamp=\the\catcode`\@
+\catcode`@=11
+ 
+\def\@Rversion{Version 1.0, Jan. 1993}
+\message{`Real arithmetic', \@Rversion (C) Frank Buchholz}
+
+% Allocation of temporary registers
+\newcount\@ta
+\newcount\@tb
+%
+\newcount\@xs  % Sign of 1st value
+\newcount\@xi  % Integer part of 1st value
+\newcount\@xf  % Fractional part of 1st value
+%
+\newcount\@ys  % Sign of 2nd value
+\newcount\@yi  % Integer part of 2nd value
+\newcount\@yf  % Fractional part of 2nd value
+%
+\newcount\@mil \@mil=1000000000        % 10^9
+%
+\countdef\@xa240
+\countdef\@xb241
+\countdef\@xc242
+\countdef\@xd243
+\countdef\@xe244
+\countdef\@ya245
+\countdef\@yb246
+\countdef\@yc247
+\countdef\@yd248
+\countdef\@ye249
+\let\@f=\@tb
+\let\@product=\@ta
+
+\chardef\@zero=0
+
+%%     \Radd<macro><value><value>              Addition
+\def\Radd#1#2#3{\@callc\@Radd#1{#2}{#3}}
+
+%%     \Rsub<macro><value><value>              Subtraction
+\def\Rsub#1#2#3{\@callc\@Radd#1{#2}{-#3}}
+
+\def\@Radd#1#2.#3.#4\relax#5.#6.#7\relax{%
+  % #1 Macro, witch gets the result
+  % #2 integer part of 1st value 
+  % #3 fractional part of 1st value
+  % #4 dummy to swallow everthing after the 2nd '.'
+  % #5 integer part of 2nd value 
+  % #6 fractional part of 2nd value
+  % #7 dummy to swallow everthing after the 2nd '.'
+  %
+  \@readvalue\@xs\@xi\@xf{#2}{#3}%
+  \@readvalue\@ys\@yi\@yf{#5}{#6}%
+  %
+  % Add integer parts
+  \@ta=\@xi \advance\@ta\@yi%
+  %
+  % Add fractional parts if they are not zero
+  \ifnum\@xf=\@zero%
+    \ifnum\@yf=\@zero%
+      \@tb=\@zero%
+    \else%
+      \@longadd%
+    \fi%
+  \else%
+    \@longadd%
+  \fi%
+  %
+  % Store result
+  \@store#1\@ta\@tb%
+}
+
+\def\@longadd{%
+    % Propagate sign to fractional parts
+    \multiply\@xf\@xs \multiply\@yf\@ys%
+    %
+    % Add fractional parts
+    \@tb=\@xf \advance\@tb\@yf%
+    %
+    % Calculate carry
+    \ifnum\@tb<\@zero% 
+      \ifnum\@tb<-\@mil      \advance\@ta -\@ne \advance\@tb\@mil  \fi% 
+    \else% 
+      \ifnum\@tb<\@mil \else \advance\@ta \@ne \advance\@tb-\@mil \fi% 
+    \fi%
+} 
+
+%%     \Rmul<macro><value><value>              Multiplication
+\def\Rmul#1#2#3{\@callc\@Rmul#1{#2}{#3}}
+
+\def\@Rmul#1#2.#3.#4\relax#5.#6.#7\relax{%
+  % #1 Macro, witch gets the result
+  % #2 integer part of 1st value 
+  % #3 fractional part of 1st value
+  % #4 dummy to swallow everthing after the 2nd '.'
+  % #5 integer part of 2nd value 
+  % #6 fractional part of 2nd value
+  % #7 dummy to swallow everthing after the 2nd '.'
+  %
+  % How to do real multiplications:
+  % Split values in various parts
+  % x y = 1234 567890 . 123 456 789
+  % ->   xa   xb       xc  xd  xe
+  % ->   ya   yb       yc  yd  ye
+  % Do 21 (!) integer multiplications if there are any fractional parts
+  % r = x * Y
+  % -> r =   xi*yi
+  %       + (xa*yc + xa*yc                  )*10^3 
+  %       + (xa*yd + xd*ya                  )*10^-0 
+  %       + (xa*ye + xe*ya  +  xb*yc + xc*yb)*10^-3 
+  %       + (xb*yd + xd*yb  +  xc*yc        )*10^-6 
+  %       + (xb*ye + xe*yb  +  xc*yd + xd*yc)*10^-9 
+  %       + (xc*ye + xe*yc  +  xd*yd        )*10^-12 
+  %       + (xd*ye + xe*yd                  )*10^-15 
+  %       + (xe*ye                          )*10^-18
+  %
+  % -> r = ((((( xe*ye                              / 1000 
+  %            + xd*ye + xe*yd                   ) / 1000
+  %           + xc*ye + xe*yc  +  xd*yd         ) / 1000
+  %          + xb*ye + xe*yb  +  xc*yd + xd*yc ) / 1000
+  %         + xb*yd + xd*yb  +  xc*yc         ) / 1000
+  %        + xa*ye + ye*xa  +  xb*yc + xc*yb ) / 1000
+  %       + xa*yd + xd*ya + (xa*yc + ya*xc)*1000 + xi*yi
+  % The last three digigs are saved just before the divisions.
+  %
+  % Init 
+  %
+  \@readvalue\@xs\@xi\@xf{#2}{#3}%
+  \@readvalue\@ys\@yi\@yf{#5}{#6}%
+  %
+  % Sign
+  \multiply\@xi\@xs%
+  \multiply\@yi\@ys%
+  \multiply\@xs\@ys%
+  %
+  \@product=\@zero%
+  % 
+  \ifnum\@xf=\@zero%
+    \ifnum\@yf=\@zero%
+      % No fractional parts
+      \edef\@frac{000000000}   % digits of fractional part  
+    \else%
+      \@longmul                        % Long multiplication           
+    \fi%
+  \else%
+    \@longmul                  % Long multiplication           
+  \fi%
+  %
+  % Multiply integer parts
+  \count@=\@xi \multiply\count@\@yi%
+  \advance\@product\count@%
+  %
+  % Sign
+  \multiply\@product\@xs%
+  %
+  % Store result
+  \edef#1{\number\@product.\@frac}%
+}
+
+% Do long multiplication
+\def\@longmul{%
+    % Split values in pieces
+    \@f=1000000%
+    \count@=\@xi%              
+    \divide\count@\@f                                  \@xa=\count@%
+    \multiply\count@-\@f       \advance\count@\@xi     \@xb=\count@%
+    \count@=\@xf%              
+    \divide\count@\@f                                  \@xc=\count@%
+    \multiply\count@-\@f       \advance\count@\@xf%    
+    \@f=1000%
+    \@xe=\count@%
+    \divide\count@\@f                                  \@xd=\count@%
+    \multiply\count@-\@f       \advance\count@\@xe     \@xe=\count@%
+    % 
+    \@f=1000000%
+    \count@=\@yi%              
+    \divide\count@\@f                                  \@ya=\count@%
+    \multiply\count@-\@f       \advance\count@\@yi     \@yb=\count@%
+    \count@=\@yf%              
+    \divide\count@\@f                                  \@yc=\count@%
+    \multiply\count@-\@f       \advance\count@\@yf%    
+    \@f=1000%
+    \@ye=\count@%
+    \divide\count@\@f                                  \@yd=\count@%
+    \multiply\count@-\@f       \advance\count@\@ye     \@ye=\count@%
+    %
+    \edef\@frac{}                              % digits of fractional part
+    % 
+    \@mul ee         \relax\@shift             % 10^-18
+    \@mul de ed       \relax\@shift            % 10^-15
+    \@mul ce ec dd    \relax\@shift            % 10^-12
+    \@mul be eb cd dc \relax\@saveshift                % 10^-9
+    \@mul bd db cc    \relax\@saveshift                % 10^-6
+    \@mul ae ea bc cb \relax\@saveshift                % 10^-3
+    \multiply\@xa\@f  \multiply\@xc\@f         % 10^3
+    \@mul ad da ac ca \relax%                  
+}
+
+\def\@mul#1#2#3{%
+  \count@=\csname @x#1\endcsname%
+  \multiply\count@\csname @y#2\endcsname%
+  \advance\@product\count@%
+  %
+  \ifx#3\relax%
+    \let\next=\relax% 
+  \else%
+    \let\next=\@mul%
+  \fi%
+  \next#3%
+}
+
+\def\@shift{%
+  \divide\@product\@f%
+}
+
+\def\@saveshift{%
+  % Save rightmost digits 
+  \count@=\@product%
+  \divide\@product\@f%
+  \multiply\@product\@f%
+  \advance\count@-\@product%
+  \advance\count@\@f%
+  \edef\@frac{\expandafter\@ignorenext\number\count@\@frac}%
+  %
+  \divide\@product\@f%
+}
+
+%%     \Rdiv<macro><value><value>              Division
+\def\Rdiv#1#2#3{\@callc\@Radd#1{#2}{#3}}
+
+\def\@Rdiv#1#2.#3.#4\relax#5.#6.#7\relax{%
+  % #1 Macro, witch gets the result
+  % #2 integer part of 1st value 
+  % #3 fractional part of 1st value
+  % #4 dummy to swallow everthing after the 2nd '.'
+  % #5 integer part of 2nd value 
+  % #6 fractional part of 2nd value
+  % #7 dummy to swallow everthing after the 2nd '.'
+  %
+  \message{Error: Rdiv not ready}
+  %
+  \@readvalue\@xs\@xi\@xf{#2}{#3}%
+  \@readvalue\@ys\@yi\@yf{#5}{#6}%
+  %
+  \ifnum\@yi=\@zero
+    \@xi=\@zero
+  \else
+    \divide\@xi\@yi
+  \fi
+  %
+  \@store#1\@xi\@xf%
+}
+
+%%     \Rneg<macro><value>             Negation
+\def\Rneg#1#2{%
+  % Expand the value and split it into the integer and the fractional part
+  \edef\next{\noexpand\@Rneg\noexpand#1#2..\noexpand\relax}%
+  \next%
+}
+
+\def\@Rneg#1#2.#3.#4\relax{
+  % #1 Macro, witch gets the result
+  % #2 Integer part of value
+  % #3 Fractional part of value
+  % #4 Remaining tokens
+  %
+  \@readvalue\@xs\@xi\@xf{#2}{#3}%
+  %
+  % Change sign
+  \multiply\@xi-\@ne%
+  \multiply\@xf-\@xs%
+  % 
+  % Store result
+  \@store#1\@xi\@xf%
+}
+
+%%
+%%     \Rtrunc<macro><precision><value> Truncate value to specified precision
+\def\Rtrunc#1#2#3{%
+  % Expand parameter and split the value into the integer and fractional part 
+  \edef\next{\noexpand\@Rtrunc\noexpand#1#2#3..\noexpand\relax}%
+  \next%
+}
+
+\def\@Rtrunc#1#2#3.#4.#5\relax{%
+  % #1 Macro, witch gets the result
+  % #2 Number of decimal places
+  % #3 Integer part of value
+  % #4 Fractional part of value
+  % #5 dummy to swallow everthing after the 2nd '.'
+  %
+  \count@=#2%
+  \edef\next{\empty}%
+  \ifnum\count@>\@zero%
+    \expandafter\@@Rtrunc#4000000000\relax%
+  \fi%
+  \edef#1{#3\next}%
+}
+
+\def\@@Rtrunc#1#2#3#4#5#6#7#8#9{%
+  % #1...#9 fractional part, padded with trailing zeros
+  \edef\next{.#1%
+    \ifnum\count@>1 #2\fi%
+    \ifnum\count@>2 #3\fi%
+    \ifnum\count@>3 #4\fi%
+    \ifnum\count@>4 #5\fi%
+    \ifnum\count@>5 #6\fi%
+    \ifnum\count@>6 #7\fi%
+    \ifnum\count@>7 #8\fi%
+    \ifnum\count@>8 #9\fi%
+  }%
+  \@swallow%
+}
+
+%%
+%%     \Rifle<value><value>            Test v1 < v2
+\def\Rifle#1#2{\@callb\@Rifle{#1}{#2}}
+
+\def\@Rifle#1.#2.#3\relax#4.#5.#6\relax{%
+  % #1 integer part of 1st value 
+  % #2 fractional part of 1st value
+  % #3 dummy to swallow everthing after the 2nd '.'
+  % #4 integer part of 2nd value 
+  % #5 fractional part of 2nd value
+  % #6 dummy to swallow everthing after the 2nd '.'
+  %
+  \@readvalue\@xs\@xi\@xf{#1}{#2}%
+  \@readvalue\@ys\@yi\@yf{#4}{#5}%
+  %
+  \ifnum\@xs<\@ys% 
+    \Rtesttrue% 
+  \else%
+    \ifnum\@xs>\@ys% 
+      \Rtestfalse%
+    \else%
+      \Rtestfalse%
+      \ifnum\@xi<\@yi \Rtesttrue \fi%
+      \ifnum\@xi=\@yi%
+       \multiply\@xf\@xs \multiply\@yf\@ys%
+       \ifnum\@xf<\@yf \Rtesttrue \fi% 
+      \fi%
+    \fi%
+  \fi%
+  %
+  \ifRtest%
+}
+
+%%     \Rifeq<value><value>            Test v1 = v2
+\def\Rifeq#1#2{\@callb\@Rifeq{#1}{#2}}
+
+\def\@Rifeq#1.#2.#3\relax#4.#5.#6\relax{%
+  % #1 integer part of 1st value 
+  % #2 fractional part of 1st value
+  % #3 dummy to swallow everthing after the 2nd '.'
+  % #4 integer part of 2nd value 
+  % #5 fractional part of 2nd value
+  % #6 dummy to swallow everthing after the 2nd '.'
+  %
+  \@readvalue\@xs\@xi\@xf{#1}{#2}%
+  \@readvalue\@ys\@yi\@yf{#4}{#5}%
+  %
+  \Rtestfalse%
+  \ifnum\@xi=\@yi\ifnum\@xf=\@yf \Rtesttrue \fi\fi%
+  \ifRtest%
+}
+
+%%     \Rifgt<value><value>            Test v1 > v2
+\def\Rifgt#1#2{\@callb\@Rifgt{#1}{#2}}
+
+\def\@Rifgt#1.#2.#3\relax#4.#5.#6\relax{%
+  % #1 integer part of 1st value 
+  % #2 fractional part of 1st value
+  % #3 dummy to swallow everthing after the 2nd '.'
+  % #4 integer part of 2nd value 
+  % #5 fractional part of 2nd value
+  % #6 dummy to swallow everthing after the 2nd '.'
+  %
+  \@readvalue\@xs\@xi\@xf{#1}{#2}%
+  \@readvalue\@ys\@yi\@yf{#4}{#5}%
+  %
+  \ifnum\@xs>\@ys% 
+    \Rtesttrue% 
+  \else%
+    \ifnum\@xs<\@ys% 
+      \Rtestfalse% 
+    \else%
+      \Rtestfalse%
+      \ifnum\@xi>\@yi \Rtesttrue \fi%
+      \ifnum\@xi=\@yi% 
+       \multiply\@xf\@xs \multiply\@yf\@ys%
+       \ifnum\@xf>\@yf \Rtesttrue \fi% 
+      \fi%
+    \fi%
+  \fi%
+  %
+  \ifRtest%
+}
+
+%%     \Rifneg<value>                  Test v < 0
+\def\Rifneg#1{\@calla\@Rifneg{#1}}
+
+\def\@Rifneg#1.#2.#3\relax{%
+  % #1 Integer part of value
+  % #2 Fractional part of value
+  % #3 dummy to swallow everthing after the 2nd '.'
+   %
+   \@readvalue\@xs\@xi\@xf{#1}{#2}%
+   %
+   \ifnum\@xs<0 \Rtesttrue \else \Rtestfalse \fi%
+   \ifRtest%
+ }
+
+%%     \Rifzero<value>                 Test v = 0
+\def\Rifzero#1{\@calla\@Rifzero{#1}}
+
+\def\@Rifzero#1.#2.#3\relax{%
+  % #1 Integer part of value
+  % #2 Fractional part of value
+  % #3 dummy to swallow everthing after the 2nd '.'
+  %
+  \@readvalue\@xs\@xi\@xf{#1}{#2}%
+  %
+  \Rtestfalse%
+  \ifnum\@xi=\@zero \ifnum\@xf=\@zero \Rtesttrue \fi \fi%
+  \ifRtest%
+}
+
+%%     \Rifpos<value>                  Test v >= 0
+%%                                     Take care to have a corresponding \fi
+\def\Rifpos#1{\@calla\@Rifpos{#1}}
+
+\def\@Rifpos#1.#2.#3\relax{%
+  % #1 Integer part of value
+  % #2 Fractional part of value
+  % #3 dummy to swallow everthing after the 2nd '.'
+  %
+  \@readvalue\@xs\@xi\@xf{#1}{#2}%
+  %
+  \ifnum\@xs<0 \Rtestfalse \else \Rtesttrue \fi%
+  \ifRtest%
+}
+
+%%     \Rifint<value>                  Test v is an integer value
+%%                                     Take care to have a corresponding \fi
+\def\Rifint#1{\@calla\@Rifint{#1}}
+
+\def\@Rifint#1.#2.#3\relax{%
+  % #1 Integer part of value
+  % #2 Fractional part of value
+  % #3 dummy to swallow everthing after the 2nd '.'
+  %
+  \@readvalue\@xs\@xi\@xf{#1}{#2}%
+  %
+  \ifnum\@xf=0 \Rtesttrue \else \Rtestfalse \fi%
+  \ifRtest%
+}
+
+% Utility macros
+
+\def\@calla#1#2{%
+  % #1 Macro to call
+  % #2 Value
+  % Expand the value and split them into the integer and the fractional part
+  \edef\next{\noexpand#1#2..\noexpand\relax}%
+  \next%
+}
+
+\def\@callb#1#2#3{%
+  % #1 Macro to call
+  % #2 1st value
+  % #3 2nd value
+  % Expand the values and split them into the integer and the fractional parts 
+  \edef\next{\noexpand#1#2..\noexpand\relax#3..\noexpand\relax}%
+  \next%
+}
+
+\def\@callc#1#2#3#4{%
+  % #1 Macro to call
+  % #2 Macro, witch gets the result
+  % #3 1st value
+  % #4 2nd value
+  % Expand the values and split them into the integer and the fractional parts
+  \edef\next{\noexpand#1\noexpand#2#3..\noexpand\relax#4..\noexpand\relax}%
+  \next%
+}
+
+%%     \ifRtest ... \else ... \fi      Re-execute the last test
+\newif\ifRtest
+
+%
+% Read value
+%
+\def\@readvalue#1#2#3#4#5{%
+  % #1   macro to catch the sign ( -1 or 1 )
+  % #2   macro to catch the integer part (maybe negative)
+  % #3   macro to catch the fractional part (positive)
+  % #4.#5 value
+  %
+  % Regular expression [-...d]d...["."[d...]]
+  % Attention: There has to be at least one digit between "-" and "."!
+  %
+  % Integer part
+  \if !#4! #2=\@zero \else #2=#4 \fi%
+  %
+  % Sign
+  \ifnum#2<\@zero #1=-\@ne \else #1=\@ne \fi%
+  \ifnum#2=\@zero \ifnum #4#5<\@zero #1=-\@ne \fi \fi%
+  %
+  % Fractional part
+  \if !#5!% 
+    #3=\@zero%
+  \else%
+    \@@setcount@#5000000000\relax%
+    #3=\count@%
+  \fi%
+}
+
+% Set count@ to fractional part with trailing zeros
+\def\@@setcount@#1#2#3#4#5#6#7#8#9{%
+  % #1...#9 fractional part, padded with '0'
+  \count@=#1#2#3#4#5#6#7#8#9%
+  \@swallow%
+}
+
+% Swallow everything up to next \relax
+\def\@swallow#1\relax{}
+
+%
+% Store result 
+%
+\def\@store#1#2#3{%
+  % #1 marcro to catch the result
+  % #2 counter with integer part (maybe negative)
+  % #3 counter with fractional part (maybe negative}
+  % 
+  % Sign
+  \edef#1{}%
+  \count@=#3%
+  \ifnum\count@<\@zero% 
+    \count@=-\count@%
+    \ifnum#2=\@zero% 
+      \edef#1{-}%
+    \fi%
+  \fi%
+  %
+  % Pad fractional part with leading zeros
+  \advance\count@\@mil%
+  %
+  % Store result 
+  \edef#1{#1\number#2.\expandafter\@ignorenext\number\count@}%
+}
+
+% Ignore next token
+\def\@ignorenext#1{}
+
+% Restore catcode of "@"
+\catcode`\@=\catamp