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%% \CheckSum{260}
% \iffalse
% File: ordinalpt.dtx
% Copyright (C) 2007 Miguel V. S. Frasson (mvsfrasson@gmail.com)
%
% This package may be distributed under the terms of the LaTeX
% Project Public License, as described in lppl.txt in the base
% LaTeX distribution, either version 1.2 or (at your option)
% any later version.
%
%<*driver>
\documentclass{ltxdoc}
\usepackage{doc}
\usepackage{amstext,makeidx}
\makeindex
\begin{document}
  \DocInput{ordinalpt.dtx}
\end{document}
%</driver>
% \fi
%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% \StopEventually
%
% \changes{1.0}{2007/01/10}{initial version}
%
% \MakeShortVerb+
%
% \title{\textsf{ordinalpt}: counters as ordinal numbers in Portuguese}
% \author{Miguel Vin\'\i cius Santini Frasson}
% \date{2007--01--10 version 1.0}
%
% \maketitle
%
% \section{Introduction}
%
%    The package \textsf{ordinalpt} provides a counter style (like
%    +\arabic+, +\alph+ and others) but that produces as
%    output strings like ``primeiro'' (first in Portuguese),
%    ``segundo'' (second), ``terceiro'' (third), \ldots, up to
%    ``mil\'esimo nongent\'esimo nonag\'esimo nono''
%    (1999$^{\text{th}}$).  There are counter commands to output the
%    text in UPPERCASE, Capitalized or in lowercase, with masculine or
%    feminine gender.
%
% \section{User commands}
%
% \newcommand{\countername}{\texttt{\textit{counter}}}
%
% \DescribeMacro{\ordptmasc}
% \DescribeMacro{\Ordptmasc}
% \DescribeMacro{\ORDPTMASC}
% \DescribeMacro{\ordptfem}
% \DescribeMacro{\Ordptfem}
% \DescribeMacro{\ORDPTFEM}
%    Six commands to output all incarnations of ordinal numbers in
%    portuguese --- masculine or feminine, in ``lowercase'',
%    ``Capitalized'' or in ``UPPERCASE''---:\\
%    +  \ordptmasc{+\countername+}+ (lowercase masculine),\\
%    +  \Ordptmasc{+\countername+}+ (capitalized masculine),\\
%    +  \ORDPTMASC{+\countername+}+ (uppercase masculine),\\
%    +  \ordptfem{+\countername+}+ (lowercase feminine),\\
%    +  \Ordptfem{+\countername+}+ (capitalized feminine) and\\
%    +  \ORDPTFEM{+\countername+}+ (uppercase feminine).
%
%  Example:
%
%\begin{verbatim}
%\renewcommand{\thepage}{--- \Ordptfem{page} p\'agina ---}
%\end{verbatim}
% will produce in the place for page numbers:
%
%\centerline{--- Primeira p\'agina ---}
%\centerline{--- Segunda p\'agina ---}
%
% \section{User options}
%
% \DescribeEnv{tricentesimo}
% \DescribeEnv{trecentesimo}
%   The options `\texttt{tricentesimo}' (default; closer to latin
%   \textit{tricentesimu}) and `\texttt{trecentesimo}' are provided
%   to use between ``tricent\'esimo'' and ``trecent\'esimo'', since
%   both forms are correct for the ordinal of 300.
%
% \DescribeEnv{sexcentesimo}
% \DescribeEnv{seiscentesimo}
%    The options `\texttt{sexcentesimo}' (default; closer to the latin
%    \textit{sexcentesimu}) and `\texttt{seiscentesimo}' are provided
%    to choose between ``sexcent\'esimo'' and ``seiscent\'esimo'',
%    since both forms are correct for the ordinal of 600.
%
% \DescribeEnv{noningentesimo}
% \DescribeEnv{nongentesimo}
%    The options `\texttt{noningentesimo}' (default; from latin
%    \textit{noningentesimu}) and `\texttt{nongentesimo} (from latin
%    \textit{nongentesimu})' are provided to choose between
%    ``noningent\'esimo'' and ``nongent\'esimo'', since both forms are
%    correct for the ordinal of 900.
%
% \section{Code}
%
% Identidication of the package and use of the package \textsf{ifthen}.
%    \begin{macrocode}
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{ordinalpt}[2007/01/11 v1.0 Ordinal numbers in Portuguese]
\RequirePackage{ifthen}
%    \end{macrocode}
%
% \DescribeEnv{tricentesimo}
% \DescribeEnv{trecentesimo}
% Declaring options `\texttt{tricentesimo}' (default) and
% `\texttt{trecentesimo}', since both forms ``tricent\'esimo'' and
% ``trecent\'esimo'' are correct for the ordinal of 300.
%    \begin{macrocode}
\DeclareOption{tricentesimo}{\def\@ordpt@tricent{i}}
\DeclareOption{trecentesimo}{\def\@ordpt@tricent{e}}
\ExecuteOptions{tricentesimo}
%    \end{macrocode}
%
% \DescribeEnv{sexcentesimo}
% \DescribeEnv{seiscentesimo}
% Declaring options `\texttt{sexcentesimo}' (default; closer to the
% latin \textit{sexcentesimu}) and
% `\texttt{seiscentesimo}', since both forms ``sexcent\'esimo'' and
% ``seiscent\'esimo'' are correct for the ordinal of 600.
%    \begin{macrocode}
\DeclareOption{sexcentesimo}{\def\@ordpt@sexcent{x}}
\DeclareOption{seiscentesimo}{\def\@ordpt@sexcent{is}}
\ExecuteOptions{sexcentesimo}
%    \end{macrocode}
%
% \DescribeEnv{noningentesimo}
% \DescribeEnv{nongentesimo}
% Declaring options `\texttt{noningentesimo}' (default; from latin
% \textit{noningentesimu}) and `\texttt{nongentesimo} (from latin
% \textit{nongentesimu})', since both forms ``noningent\'esimo'' and
% ``nongent\'esimo'' are correct for the ordinal of 900.
%    \begin{macrocode}
\DeclareOption{noningentesimo}{\def\@ordpt@noningent{in}}
\DeclareOption{nongentesimo}{\def\@ordpt@noningent{}}
\ExecuteOptions{noningentesimo}
%    \end{macrocode}
%
%  Processing options.
%    \begin{macrocode}
\ProcessOptions
%    \end{macrocode}
%
% \DescribeEnv{@ordpt@putspace}
% \DescribeEnv{@ordpt@counter}
% \DescribeEnv{@ordpt@alg}
% \DescribeMacro{\@ordpt@case}
% \DescribeMacro{\@ordpt@masc}
% \DescribeMacro{\@ordpt@fem}
% \DescribeMacro{\@ordpt@ul}
% Declaring internals.
%    \begin{macrocode}
\newboolean{@ordpt@putspace}
\newcounter{@ordpt@counter}
\newcounter{@ordpt@alg}
\newcommand{\@ordpt@case}{}
\newcommand{\@ordpt@masc}{o}
\newcommand{\@ordpt@fem}{a}
\newcommand{\@ordpt@ul}{o}
%    \end{macrocode}
%
% \DescribeMacro{\@ordpt@capitalize}
%    \begin{macrocode}
\newcommand{\@ordpt@capitalize}[1]{\MakeUppercase#1}
%    \end{macrocode}
%
% \DescribeMacro{\@ordpt@ordunits}
% \DescribeMacro{\@ordpt@ordtens}
% \DescribeMacro{\@ordpt@ordcents}
%   These commands take a number between 0 and 9 and return ordinal in
%   Portuguese from ``first'' to ``nineth'', ``tenth'' to
%   ``ninetieth'' (by 10) and ``one hundredieth'' to ``nine
%   hundredieth'' (by 100).  Inside the user commands the command
%   +\@ordpt@case+ will be redefined to be identity (lowercase),
%   +\@ordpt@capitalize+ (capitalized) or +\MakeUppercase+ (uppercase) and
%   +\@ordpt@ul+ will be defined as ``o'' (masculine) or ``a''
%   (feminine).
%    \begin{macrocode}
\newcommand{\@ordpt@ordunits}[1]{%
  \ifcase#1\or
   \@ordpt@case{primeir\@ordpt@ul}\or
   \@ordpt@case{segund\@ordpt@ul}\or
   \@ordpt@case{terceir\@ordpt@ul}\or
   \@ordpt@case{quart\@ordpt@ul}\or
   \@ordpt@case{quint\@ordpt@ul}\or
   \@ordpt@case{sext\@ordpt@ul}\or
   \@ordpt@case{s\'etim\@ordpt@ul}\or
   \@ordpt@case{oitav\@ordpt@ul}\or
   \@ordpt@case{non\@ordpt@ul}%
  \fi}
\newcommand{\@ordpt@ordtens}[1]{%
  \ifcase#1\or
   \@ordpt@case{d\'ecim\@ordpt@ul}\or
   \@ordpt@case{vig\'esim\@ordpt@ul}\or
   \@ordpt@case{trig\'esim\@ordpt@ul}\or
   \@ordpt@case{quadrag\'esim\@ordpt@ul}\or
   \@ordpt@case{quinquag\'esim\@ordpt@ul}\or
   \@ordpt@case{sexag\'esim\@ordpt@ul}\or
   \@ordpt@case{septuag\'esim\@ordpt@ul}\or
   \@ordpt@case{octog\'esim\@ordpt@ul}\or
   \@ordpt@case{nonag\'esim\@ordpt@ul}%
  \fi}
\newcommand{\@ordpt@ordcents}[1]{%
  \ifcase#1\or
   \@ordpt@case{cent\'esim\@ordpt@ul}\or
   \@ordpt@case{ducent\'esim\@ordpt@ul}\or
   \@ordpt@case{tr\@ordpt@tricent cent\'esim\@ordpt@ul}\or
   \@ordpt@case{quadringent\'esim\@ordpt@ul}\or
   \@ordpt@case{quingent\'esim\@ordpt@ul}\or
   \@ordpt@case{se\@ordpt@sexcent cent\'esim\@ordpt@ul}\or
   \@ordpt@case{septingent\'esim\@ordpt@ul}\or
   \@ordpt@case{octingent\'esim\@ordpt@ul}\or
   \@ordpt@case{non\@ordpt@noningent gent\'esim\@ordpt@ul}%
  \fi}
%    \end{macrocode}
%
% \DescribeMacro{\@ordpt@ordinal}
%    This command does all the work of mount the words.
%    \begin{macrocode}
\newcommand{\@ordpt@ordinal}[1]{%
%    \end{macrocode}
% It checks whether the number is between 0 and 1999.
%    \begin{macrocode}
  \ifthenelse{\value{#1}>0\and\value{#1}<2000}
%    \end{macrocode}
% Save original counter to the counter \texttt{@ordpt@counter}.
%    \begin{macrocode}
  {%
    \setcounter{@ordpt@counter}{\value{#1}}%
%    \end{macrocode}
% Then, if it is larger than 999, adds ``milesimo(a)'' in front of it.
%    \begin{macrocode}
    \ifthenelse{\value{@ordpt@counter}>999}
    {%
      \@ordpt@case{mil\'esim\@ordpt@ul}%
%    \end{macrocode}
% Save in the boolean \texttt{@ordpt@putspace} to put a space if
% something else is to be written.
%    \begin{macrocode}
      \setboolean{@ordpt@putspace}{true}%
%    \end{macrocode}
% Subtract 1000 from the counter
%    \begin{macrocode}
      \addtocounter{@ordpt@counter}{-1000}%
    }
%    \end{macrocode}
% If counter is less than 1000, set the boolean
% \texttt{@ordpt@putspace} to not put a space if
% something else is to be written.
%    \begin{macrocode}
    {%
      \setboolean{@ordpt@putspace}{false}%
    }%
%    \end{macrocode}
% Starts to parse the counter.  Gets the algarism of cents, reseting
% counter \texttt{@ordpt@alg} and does a loop, steping
% \texttt{@ordpt@alg} and subtracting 100 from
% \texttt{@ordpt@counter} while this counter is larger than 100.
%    \begin{macrocode}
    \setcounter{@ordpt@alg}{0}%
    \whiledo{\value{@ordpt@counter}>99}
    {%
      \stepcounter{@ordpt@alg}%
      \addtocounter{@ordpt@counter}{-100}%
    }%
%    \end{macrocode}
% If the algarism of the cents is positive, checks if it has to add a
% space, writes with +\@ordpt@ordcents+ and set boolean
% \texttt{@ordpt@putspace} accordingly.
%    \begin{macrocode}
    \ifthenelse{\value{@ordpt@alg}>0}
    {%
      \ifthenelse{\boolean{@ordpt@putspace}}{\space}{}%
      \@ordpt@ordcents{\value{@ordpt@alg}}%
      \setboolean{@ordpt@putspace}{true}%
    }
    {}%
%    \end{macrocode}
% Gets the digits of tens analogously it did before.
%    \begin{macrocode}
    \setcounter{@ordpt@alg}{0}%
    \whiledo{\value{@ordpt@counter}>9}
    {%
      \stepcounter{@ordpt@alg}%
      \addtocounter{@ordpt@counter}{-10}%
    }%
    \ifthenelse{\value{@ordpt@alg}>0}
    {%
      \ifthenelse{\boolean{@ordpt@putspace}}{\space}{}%
      \@ordpt@ordtens{\value{@ordpt@alg}}%
      \setboolean{@ordpt@putspace}{true}%
    }
    {}%
%    \end{macrocode}
% Now counter \texttt{@ordpt@counter} is left with the units digit.
% Print as before.
%    \begin{macrocode}
    \ifthenelse{\value{@ordpt@counter}>0}
    {%
      \ifthenelse{\boolean{@ordpt@putspace}}{\space}{}%
      \@ordpt@ordunits{\value{@ordpt@counter}}%
    }
    {}%
  }
% end of the first +\ifthenelse+: sign counter error if argument
% counter is not between 1 and 1999 inclusively.
%    \begin{macrocode}
  {\@ctrerr}%
}
%    \end{macrocode}
%
% \DescribeMacro{\ordptmasc}
% \DescribeMacro{\Ordptmasc}
% \DescribeMacro{\ORDPTMASC}
% \DescribeMacro{\ordptfem}
% \DescribeMacro{\Ordptfem}
% \DescribeMacro{\ORDPTFEM}
%    The end user commands.  The diference between them is the +\let+
%    binds of +\@ordpt@case+ to +\@fisrtofone+, +\@ordpt@capitalize+ or
%    +\MakeUppercase+, and binds of +\@ordpt@ul+ to +\@ordpt@masc+=``o'' or
%    +\@ordpt@fem+=``a''.
%    \begin{macrocode}
\newcommand{\ordptmasc}[1]{%
  \let\@ordpt@case\@firstofone
  \let\@ordpt@ul\@ordpt@masc
  \@ordpt@ordinal{#1}}
\newcommand{\Ordptmasc}[1]{%
  \let\@ordpt@case\@ordpt@capitalize
  \let\@ordpt@ul\@ordpt@masc
  \@ordpt@ordinal{#1}}
\newcommand{\ORDPTMASC}[1]{%
  \let\@ordpt@case\MakeUppercase
  \let\@ordpt@ul\@ordpt@masc
  \@ordpt@ordinal{#1}}
\newcommand{\ordptfem}[1]{%
  \let\@ordpt@case\@firstofone
  \let\@ordpt@ul\@ordpt@fem
  \@ordpt@ordinal{#1}}
\newcommand{\Ordptfem}[1]{%
  \let\@ordpt@case\@ordpt@capitalize
  \let\@ordpt@ul\@ordpt@fem
  \@ordpt@ordinal{#1}}
\newcommand{\ORDPTFEM}[1]{%
  \let\@ordpt@case\MakeUppercase
  \let\@ordpt@ul\@ordpt@fem
  \@ordpt@ordinal{#1}}
%    \end{macrocode}
% \Finale \PrintIndex %\PrintChanges
%
\endinput
%
%% \CharacterTable
%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \<
%%   Equals        \=     Greater than  \>     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%%   Right brace   \}     Tilde         \~}