-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%        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