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diff --git a/Master/texmf-dist/doc/latex/invoice/invoice.tex b/Master/texmf-dist/doc/latex/invoice/invoice.tex new file mode 100644 index 00000000000..113319bbec7 --- /dev/null +++ b/Master/texmf-dist/doc/latex/invoice/invoice.tex @@ -0,0 +1,742 @@ +\documentclass[11pt]{ltxdoc} +\usepackage{invoice} +\usepackage{pslatex,hyperref} + +\title{\texttt{invoice \InvoiceVersion}\\ + A Package for Writing Invoices} +\author{Oliver Corff} +\date{December 16th, 2003} +\begin{document} +\maketitle + +\tableofcontents + +\section{Introduction} + +The \texttt{invoice} package was conceived in late 2000 when the +author had to dig through a truly aweful pile of expense bills +without having a spreadsheet featuring \LaTeXe-compliant output (or +any spreadsheet, for that purpose) available. After several +miscalculations with a pocket calculator due to forgotten or +double entries the idea came up to have \LaTeXe\ do the calculation +work. As such, the package in its present stage is highly +specialized with regard to the documents it generates. The +\texttt{invoice} package is basically a tailor-made solution for a +consultant who charges fees and claims all sorts of expenses, +sometimes working on different assignments for the same client. + +The author expresses his gratitude to +Robert Inder, +Thilo Barth, +Jacco Kok, +Fred Donck, +Jacopo, +Johann Spies, +Ian Wormsbecker, +Vincent Tougait +and +Robin Fairbairns +who contributed ideas, corrections, +bugfixes and caption translations after the first discussions on +\texttt{comp.text.tex} and the initial release of \texttt{invoice}. + +Given the current capabilities of \texttt{invoice}, it should well +be possible to extend the capabilities of this package in the future +or to rewrite it in a generalized fashion. + +\section{Software Requirements} + +The \texttt{invoice} environment runs under \LaTeXe\ and relies on the +\texttt{calc.sty} (providing infix arithmetic) and \texttt{realcalc} +(providing real arithmetic) utilities to do its work which can be found +at CTAN% + \footnote{The \texttt{realcalc} package is found at + \texttt{CTAN:macros/generic/realcalc}, + and \texttt{calc} is found at + \texttt{CTAN:macros/latex/required/tools/}.}. +Compile and read \texttt{00README.tex} for further information if +you are not sure whether these packages are installed at your site. + +\section{The \texttt{invoice} Environment} + +Within a given document, invoices are built with the +\texttt{invoice} environment\footnote{Users of the KOMA-Script + class \texttt{scrlettr.cls} are kindly requested to use + \texttt{invoiceenv} instead; see also page~\pageref{koma}.}. +Figure~\ref{structure} on page~\pageref{structure} shows the +logical structure of an invoice as well as its basic commands. +In case a full-fledged invoice stationary is needed, it is recommended +to use the \texttt{invoice} environment within existing business +letters which may have been pre-defined already. The \texttt{invoice} +package itself does not provide tools for including company logos, +recipient's addresses, bank account numbers etc. as these are usually +covered by the various \texttt{letter} classes available for \LaTeXe. + +\begin{figure}[h] +\begin{center} +\fbox{ +\begin{minipage}{8.5cm}% +\textbf{\huge --- Invoice ---\\[2mm]} + \texttt{\Large \char92 begin\{invoice\}\{...\}\{...\}\\[2mm]} + \fbox{ + \begin{minipage}{7.0cm} + \textbf{\Large --- Project ---\\[1.5mm]} + \texttt{\large\char92 ProjectTitle\{...\}\\[1.5mm]} + \fbox{ + \begin{minipage}{5.5cm} + \textbf{\large --- Fees ---\\} + \texttt{\char92 Fee\{...\}\{...\}\{...\}}\\ + ...\\ + ...\\ + \end{minipage} + }\\[2mm] + \fbox{ + \begin{minipage}{5.5cm} + \textbf{\large --- Expenses (local) ---\\} + \texttt{\char92 EBC\{...\}\{...\}}\\ + ...\\ + ...\\ + \textbf{\large --- Expenses (foreign) ---\\} + \texttt{\char92 EFC\{...\}\{...\}\{...\}\{...\}\{...\}}\\ + ...\\ + ...\\ + \end{minipage} + }\\[2mm] + \end{minipage} + }\\[2mm] + \fbox{ + \begin{minipage}{7.0cm} + \textbf{\Large --- \dots\ More Projects\dots\ ---} + \end{minipage} + }\\[2mm] +% \fbox{ +% \begin{minipage}{7.0cm} +% \textbf{\Large --- Project ---} +% \end{minipage} +% }\\ + \texttt{\Large\char92 end\{invoice\}} +\end{minipage} +} +\end{center} +\caption{The \texttt{invoice} Environment + and its Logical Structure\label{structure}} +\end{figure} + +Invoices contain one or more projects which in return contain the charged +items, either fees (plus tax, if applicable) and/or expenses. An +invoice with one project is announced by saying + +\begin{verbatim} +\begin{invoice}{<Base Currency>}{<VAT>} + \ProjectTitle{...}% +\end{invoice} +\end{verbatim} + +There is no limit for the number of projects in an invoice, as there +is no limit for the number of invoices per document. + +The \texttt{invoice} environment requires two arguments: +\begin{enumerate} + \item \texttt{<Base Currency>} is the name of the currency + in which the invoice is charged, e.\,g. DM, Euro, + US\$, RMB etc. + \item \texttt{<VAT>} is the percentage rate of VAT which is charged; + in Germany this is currently (winter 2003) 16\%. If + no VAT is required, enter a \texttt{0} + (\textit{zero}) here. It is neither necessary nor + permissible to use a percent sign here. As some + countries (e.\,g. France) have fractions of + percentages (like 16.9\%), you would in this case + enter \verb|16.9| (without any percent sign). + + Setting the VAT rate to \verb-0- produces the side + effect that the lines stating the VAT subtotals and + totals disappear. + + If it is, however, desired to show the VAT results + even if they amount to zero, enter \verb-0.0- instead. +\end{enumerate} + + +\subsection{Projects} + +An invoice contains items which are usually, in the case of e.\,g. +consultancy fees and related expenses like hotel bills and air +fares, attributed to a given case or \textit{project}, or +cost center, or ``Kostenstelle'' (in German). + +A project contains any of three different types of charged items: +\begin{enumerate} + \item \textbf{Fees}. A tax can be added, if applicable. Fees + are always charged in the + base currency + of the invoice. + \item \textbf{Local Expenses}. Local expenses are charged in + units of the + base currency + of the invoice. + \item \textbf{Foreign Expenses}. Foreign expenses are charged in + units of any given foreign currency. Either the + base currency + equivalent is known (as taken from a credit card + billing statement, for example), or, if not, an + exchange rate between foreign currency and base + currency has to be stated. +\end{enumerate} + +\textbf{Nota bene:} The order of fees and expenses is fixed. Either fees or +expenses can be omitted, but expenses must be charged \textit{after} +fees. + + +\section{The First Example: How to Charge Fees} + + +A consultant charges fees per day, hour or any other unit. Usually +this unit is agreed upon in a contract and there is no further need +to refer to this unit but by its count. This is done by the +\verb-\Fee{}{}{}- command: + +\begin{verbatim} + \Fee{<Contents>}{<Rate/Unit>}{<Count>} +\end{verbatim} + +Let's assume an interim manager +charges DM 1818.00 a day for 12 working days while +negotiating a major project, nicknamed \textit{Project Phenix}. +He also charges DM 2750.00 a day for analysing and negotiating +the restructuring of the sales division, a work he spent 9 days with. + +\subsection{Invoices with VAT} + +We further assume that the consultant is required to charge VAT. +All information above would be entered into the invoice as follows: + +\begin{verbatim} +\begin{invoice}{DM}{16} + \ProjectTitle{Project Phenix}% + % Contents Rate/Unit Count + \Fee{Some really lengthy and utterly + tedious negotiation} {1818.00} {12} + + \ProjectTitle{Sales Restructuring}% + % Contents Rate/Unit Count + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} +\end{invoice} +\end{verbatim} + +And here is how the result looks like: + +\begin{invoice}{DM}{16} + \ProjectTitle{Project Phenix}% + \Fee{Some really lengthy and utterly + tedious negotiation} {1818.00} {12} + + \ProjectTitle{Sales Restructuring}% + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} +\end{invoice} + +Hints: If the base currency is to contain a dollar sign (\$), then +dollar sign must be entered in the form of \verb|\string$| +or otherwise the command writing the log file data will fail. The +contents of each fee may be verbose; while the column width is +limited, text contents longer than the column width wraps over +several columns, if necessary. + +The astute observer will note that a line beginning with ``Subtotal~Fees'' +appeared in the output of the Sales Restructuring Project without explicit +input to this effect from the user's side. The full grammar of the Fee block +requires that all fees are closed by a fee subtotal. Internally, +\texttt{invoice} is defined as a finite state automaton providing +mechanisms to insert a fee subtotal if logic requires it, and print +its value if it makes sense to humans, which is the case if there is more +than one fee. + +Note that there is an explicit command \texttt{\char92 STFee} which will +produce a subtotal of the fees charged so far. This can be used if +you want to show fee subtotals within the same project. + + +\subsection{Invoices without VAT} + +As mentioned above, an invoice may be calculated without any VAT. +The VAT lines may completely disappear, as in the following +example: +\begin{verbatim} +\begin{invoice}{DM}{0} + \ProjectTitle{Project Phenix}% + % Contents Rate/Unit Count + \Fee{Some really lengthy and utterly + tedious negotiation} {1818.00} {12} + + \ProjectTitle{Sales Restructuring}% + % Contents Rate/Unit Count + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} +\end{invoice} +\end{verbatim} + + +Figure~\ref{invoice_without_VAT} on +page~\pageref{invoice_without_VAT} +shows the result. + +\begin{figure}[h] +\begin{invoice}{DM}{0} + \ProjectTitle{Project Phenix}% + \Fee{Some really lengthy and utterly + tedious negotiation} {1818.00} {12} + + \ProjectTitle{Sales Restructuring}% + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} +\end{invoice} +\caption{A complete invoice + with fees but no VAT.\label{invoice_without_VAT}} +\end{figure} + +In contrast, if for any reason the VAT subtotals and totals should +be kept visible despite a \textit{value} of zero, then use a VAT +value of \verb-0.0- as in the following example: +\begin{verbatim} +\begin{invoice}{DM}{0.0} + \ProjectTitle{Project Phenix}% + % Contents Rate/Unit Count + \Fee{Some really lengthy and utterly + tedious negotiation} {1818.00} {12} + + \ProjectTitle{Sales Restructuring}% + % Contents Rate/Unit Count + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} +\end{invoice} +\end{verbatim} + + +Figure~\ref{invoice_with_zero_VAT} on +page~\pageref{invoice_with_zero_VAT} +shows the result. + +\begin{figure}[h] +\begin{invoice}{DM}{0.0} + \ProjectTitle{Project Phenix}% + \Fee{Some really lengthy and utterly + tedious negotiation} {1818.00} {12} + + \ProjectTitle{Sales Restructuring}% + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} +\end{invoice} +\caption{A complete invoice + with fees but zero VAT.\label{invoice_with_zero_VAT}} +\end{figure} + + +\section{The Second Example: How to Claim Expenses} + +Expenses can be charged in base currency or in any foreign currency. +The base currency's name should be announced once at the beginning +of the invoice. + +\subsection{Expenses in Base Currency} + +The shape of an expense item in base currency is simple: + +\begin{verbatim} +\EBC{<Contents>} {<Amount>} +\end{verbatim} + +Both fields contain mandatory arguments: + +\begin{enumerate} + \item \texttt{<Contents>} contains a description of the + charged item, e.\,g. ``Hotel'', ``Airport Tax'' or + whatever. + \item \texttt{<Amount>} contains the amount in base currency + units. +\end{enumerate} + + +\subsection{Expenses in Foreign Currency} + +Charging an expense in foreign currency is only slightly more +complicated. The command is: + +\begin{verbatim} +\EFC{<Contents>} + {<Foreign Currency>}{<Amount>} + {<Conversion Rate>}{<Base Currency Result>} +\end{verbatim} + +Arguments to the five fields are partially mandatory, partially optional: +\begin{enumerate} + \item \texttt{<Contents>} contains a description of the + charged item, e.\,g. ``Hotel'', ``Airport Tax'' or + whatever. + + \item \texttt{<Foreign Currency>} contains the name of the + foreign currency. + + \item \texttt{<Amount>} contains the amount in foreign currency + units. + + \item \texttt{<Conversion Rate>} contains the factor by + which the foreign currency amount has to be + multiplied in order to achieve the base currency + result. If the base currency result is stated, + then, and only then, the Conversion Rate can be + omitted. + + \item \texttt{<Base Currency Result>} contains an optional + amount in base currency units. Credit card billing + statements show this amount which usually contains + certain service charges of the credit card issuer; + the base currency result is thus the true amount of + money to be charged. If a \texttt{<Conversion Rate>} + is given, stating a base currency result becomes + optional. This is usually applied for expenses made + with cash money. +\end{enumerate} + + +Since some of the arguments given to \verb-\EFC- are optional, +there are basically two different forms of using this command. +With the variant + +\begin{verbatim} +\EFC{<Contents>}{<Foreign Currency>}{<Amount>} + {<Conversion Rate>} % Conversion rate + {} % Base currency empty! +\end{verbatim} + +(amount in foreign currency given, as well as exchange rate stated), +the command will automatically calculate the resulting amount in +base currency. + +\begin{verbatim} +\EFC{<Contents>} + {<Foreign Currency>}{<Amount>} + {} % Conversion rate empty! + {<Base Currency Result>} % Base currency +\end{verbatim} + +If, however, the exchange rate is omitted and the target amount in +base currency is given, then this value is taken directly. Stating +the resulting amount overrides the internal calculation mechanism. +Examples are given below. We use our interim manager's invoice +again, assuming this time that she spent working on Project Phenix +12 days in her home country while the Sales Restructuring effort +took her to Hong Kong. The taxi bills are paid in cash, hence she +enters the (fictive) conversion rate, whereas the hotel is paid by +credit card. She can then take the final amount from her credit card +billing statement; an example input would look as follows: + +\begin{verbatim} +\begin{invoice}{DM}{16} + \ProjectTitle{Project Phenix}% + % Contents Rate/Unit Count + \Fee{Negotiation} {1818.00} {12} + % + % Contents Amount + \EBC{Hotel, 12 nights} {2400.00} + + \ProjectTitle{Sales Restructuring}% + % Contents Rate/Unit Count + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} + % + % Contents Currency Amount Conv.Rate Result + \EFC{Taxi Airport -- Hotel} {HK\$} {325.00} {0.2354} {} + \EFC{Hotel, 9 nights} {HK\$} {9180.00} {} {2111.40} +\end{invoice} +\end{verbatim} + +Figure~\ref{full_invoice} on +page~\pageref{full_invoice} +shows the result. + +\begin{figure}[h] +\begin{invoice}{DM}{16} + \ProjectTitle{Project Phenix}% + \Fee{Negotiation} {1818.00} {12} + % + % Contents Amount + \EBC{Hotel, 12 nights} {2400.00} + + \ProjectTitle{Sales Restructuring}% + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} + % + % Contents Currency Amount Conv.Rate Result + \EFC{Taxi Airport -- Hotel} {HK\$} {325.00} {0.2354} {} + \EFC{Hotel, 9 nights} {HK\$} {9180.00} {} {2111.40} +\end{invoice} +\caption{A complete invoice with fees and expenses.\label{full_invoice}} +\end{figure} + +Again, a subtotal of the expenses appears only if there is more than +one expense item in a project. + + +\subsection{Hidden Expense Details} + +Occasionally it may be desirable to list only the total of expenses +incurred, while hiding the structure of expenses. In such a case, +the expense commands can be modified by attaching an \verb|i| to +their names (as in \textit{invisible}). + +A hidden expense in base currency is thus declared as: + +\begin{verbatim} +\EBCi{<Contents>} {<Amount>} +\end{verbatim} + +A hidden expense in foreign currency is declared as: + +\begin{verbatim} +\EFCi{<Contents>} + {<Foreign Currency>}{<Amount>} + {<Conversion Rate>}{<Base Currency Result>} +\end{verbatim} + +Both commands accept and require exactly the same arguments as their +visible counterparts. The expenses will be added to the expense subtotals +and the invoice total in the same way as if they were visible. If there +is no visible expense stated at all it may be useful to have at least +a line with the expense subtotal appear; this is done by the \verb|STExpenses| +command, as shown in the following example: + +\begin{verbatim} +\begin{invoice}{DM}{16} + \ProjectTitle{Project Phenix}% + % Contents Rate/Unit Count + \Fee{Negotiation} {1818.00} {12} + % + % Contents Amount + \EBCi{Hotel, 12 nights} {2400.00} + % + \STExpenses + + \ProjectTitle{Sales Restructuring}% + % Contents Rate/Unit Count + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} + % + % Contents Currency Amount Conv.Rate Result + \EFCi{Taxi Airport -- Hotel} {HK\$} {325.00} {0.2354} {} + \EFCi{Hotel, 9 nights} {HK\$} {9180.00} {} {2111.40} + \STExpenses +\end{invoice} +\end{verbatim} + +Figure~\ref{invoice_with_hidden_expenses} on +page~\pageref{invoice_with_hidden_expenses} +shows the result. + +\begin{figure}[h] +\begin{invoice}{DM}{16} + \ProjectTitle{Project Phenix}% + \Fee{Negotiation} {1818.00} {12} + % + % Contents Amount + \EBCi{Hotel, 12 nights} {2400.00} + % + \STExpenses + + \ProjectTitle{Sales Restructuring}% + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} + % + % Contents Currency Amount Conv.Rate Result + \EFCi{Taxi Airport -- Hotel} {HK\$} {325.00} {0.2354} {} + \EFCi{Hotel, 9 nights} {HK\$} {9180.00} {} {2111.40} + \STExpenses +\end{invoice} +\caption{A complete invoice with visible fees + but invisible expenses.\label{invoice_with_hidden_expenses}} +\end{figure} + + +\section{Deduction of Discounts and Downpayments} + +Finally, it may be possible that previous downpayments etc. have to +be considered for the invoice total. An optional discount line +can state the item and deduct the amount from the invoice total. +Deductions are always stated in base currency. They follow the following +syntax: + + +\begin{verbatim} +\Discount{<Contents>} {<Amount>} +\end{verbatim} + +Both fields contain mandatory arguments: + +\begin{enumerate} + \item \texttt{<Contents>} contains a description of the + discount item, e.\,g. ``Downpayment'', ``Tickets for + private use'' or whatever. + \item \texttt{<Amount>} contains the amount in base currency + units. +\end{enumerate} + +Figure~\ref{full_and_discounted_invoice} on +page~\pageref{full_and_discounted_invoice} +shows the result. + +\begin{figure}[h] +\begin{invoice}{DM}{16} + \ProjectTitle{Project Phenix}% + \Fee{Negotiation} {1818.00} {12} + % + % Contents Amount + \EBC{Hotel, 12 nights} {2400.00} + + \ProjectTitle{Sales Restructuring}% + \Fee{Sales Structure Analysis} {2750.00} { 6} + \Fee{Negotiation with Agents} {2750.00} { 3} + % + % Contents Currency Amount Conv.Rate Result + \EFC{Taxi Airport -- Hotel} {HK\$} {325.00} {0.2354} {} + \EFC{Hotel, 9 nights} {HK\$} {9180.00} {} {2111.40} + \Discount{Downpayment received} {2000.00} +\end{invoice} +\caption{A complete invoice with fees, + expenses and a deduction.\label{full_and_discounted_invoice}} +\end{figure} + +\section{Postprocessing} + +In order to allow the further processing of +\texttt{invoice}-generated data, the log file contains the totals of +fees, expenses and taxes in the form of \verb-key:value- pairs. This +information appears also on the terminal while \LaTeXe\ runs. Please +note that the key appearing in the log file is expressed in the same +language as that of the master document. + +\section{Document Language} + +All column headers appearing in \texttt{invoice} can be redefined in +order to match the language of the master document. E.\,g., headings +like ``Total'' will automatically appear as ``Gesamtsumme'' if the +document language is set to German (either via \texttt{babel} or +\verb-\usepackage{german}-). + +Please observe that the \texttt{invoice} package must be called {\em +after} the document language has been selected. + +This is correct: + +\begin{verbatim} +\documentclass[10pt]{ltxdoc} +\usepackage{german} +\usepackage{invoice} % labels will now appear in German! +\end{verbatim} + +This will not work: + +\begin{verbatim} +\documentclass[10pt]{ltxdoc} +\usepackage{invoice} +\usepackage{german} % labels will still appear in English! +\end{verbatim} + + +\subsection{Specifying the Desired Language} + +It is also possible to ignore the global language settings and select +a language local to the \texttt{invoice} package by specifying the +desired language as an option: + +\begin{verbatim} +\documentclass[10pt]{ltxdoc} +\usepackage[german]{invoice} % labels in German, rest + % of document in English +\end{verbatim} + +This is useful whenever the desired language is not provided by the +installation base where \texttt{invoice} is executed. + +\subsection{Adding Labels in a New Language} + +At present, column labels produced by \texttt{invoice} can appear +in six languages: Afrikaans, Dutch, English, French, German and Italian. +Other languages can be added easily by editing the file +\verb-invoice.def-. Language-dependent definitions are contained in +the \verb-\if-clause. Extending the file is simple: + +\begin{enumerate} + \item Copy the labels template to the end of the file. + \item Remove the comments (\verb-%-) in column 1. + \item Fill each label definition with the appropriate + foreign language translation. + \item Put the correct internal name of the foreign language + into the condition expression of the \verb-\ifx-- + and \verb-\ifnum--clauses. +\end{enumerate} + +\begin{sloppypar} +Whenever you create your own foreign language extension please kindly +consider sending your modified \verb-invoice.def- file to the author +(at \verb+corff@zedat.fu-berlin.de+ or \verb+oliver.corff@email.de+) +so that it can be included in the next update. Future users can then +share your work. +\end{sloppypar} + +\section{Bugs} + +Certainly there are bugs. After all, this is not Moon, but Earth +(where life is supposed to exist, as opposed to Moon). The author +has not conducted extensive tests on the algebraic functions, and +there may be rounding and truncating errors. + +The author considers it a bug that the decimal point cannot be +replaced by a comma at present, while entering dollar signs +requires the \verb|\string$| notation. + +Spurious spaces may distort the table layout. It is especially +recommended to close all \verb"\ProjectTitle{...}%" lines with a +percent mark, as shown. If the percent mark is omitted, the first +column header is not properly aligned to the left. + +Breaking long invoice statements with many projects over several +pages results in many orphans and widows. + +\subsection{\label{koma}Compatibility with KOMA-Script} + +Unfortunately, when first writing this package the author was not aware +of the KOMA-Script classes, notably the class \texttt{scrlettr.cls} +which defines its own \verb-\invoice{#1}- command, albeit with completely +different scope, usage and syntax. KOMA-Script's \verb-\invoice{#1}- command +accepts a number and prints ``Invoice no. \#1'' in a letter +opening. Now that the names of the \texttt{invoice} package and +environment have stuck it is easier to think of a workaround than to +conceive a new name. Therefore, If the class \texttt{scrlettr.cls} is +used, the environment \texttt{invoice} is automatically renamed to +\texttt{invoiceenv}. Writing + +\begin{verbatim} +\documentclass[10pt]{scrlettr} +\usepackage{invoice} +\begin{invoice}{DM}{16} +... +... +\end{verbatim} + +will result in an error message. Say \verb-\begin{invoiceenv}{DM}{16}- +instead. KOMA-Script's own \verb-\invoice{#1}- command is renamed to +\verb-\invoiceno{#1}-, while \verb-\invoice{#1}- now generates an +error message reminding KOMA-Script users to apply the renamed +commands. + +\section{Desiderata} + +The \verb-invoice- package is far from complete. Future expansions +should aim at making the package more flexible. How taxes are +treated, etc., is at present a rather particular arrangement +suitable for the author's immediate needs, but a more general +solution can be designed as soon as more users reflect their needs +to the author. +\end{document} |