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%%
%% This is file `constants.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% constants.dtx (with options: `package')
%% ----------------------------------------------------------------
%% The constants package --- Automatic labelling of constants
%% Maintained by Antoine Lejay
%% Based on ltxref.dtx of the Latex Kernel (Copyright the LaTeX 3 project).
%% Released under the LaTeX Project Public License v1.3c or later
%% See http://www.latex-project.org/lppl.txt
%% ----------------------------------------------------------------
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{constants}%
[2008/03/25 v.1 Labeling and numbering constants]
\PackageInfo{constants}
{This package aims to label et number constants in a mathematical proof.}
\RequirePackage{keyval}
\def\@if@constant@exists#1#2#3{\@ifundefined{cst@family@#1}{#3}{#2}}
\global\@namedef{cst@family@normal}{}
\newcounter{cst@counter@normal}
\def\cst@format@normal#1{\arabic{#1}}
\def\cst@symbol@normal{C}
\newcommand{\newconstantfamily}[2]{
\@if@constant@exists{#1}{%
\PackageError{constants}{The family of constants '#1' already exists}{%
Use \protect\renewconstantfamily\space to override}}%
{%
\expandafter\def\csname cst@family@#1\endcsname{}
\expandafter\def\csname cst@format@#1\endcsname{\cst@format@normal}
\expandafter\def\csname cst@symbol@#1\endcsname{\cst@symbol@normal}
\expandafter\newcounter{cst@counter@#1}
\define@key{constants}{format}%
{\expandafter\def\csname cst@format@#1\endcsname{##1}}
\define@key{constants}{symbol}%
{\expandafter\def\csname cst@symbol@#1\endcsname{##1}}
\define@key{constants}{reset}{\@addtoreset{cst@counter@#1}{##1}}
\setkeys{constants}{#2}
}}
\newcommand{\renewconstantfamily}[2]{
\@if@constant@exists{#1}{
\define@key{constants}{format}{%
\expandafter\def\csname cst@format@#1\endcsname{##1}}
\define@key{constants}{symbol}{%
\expandafter\def\csname cst@symbol@#1\endcsname{##1}}
\define@key{constants}{reset}{\@addtoreset{cst@counter@#1}{##1}}
\setkeys{constants}{#2}
}{%
\PackageError{constants}{The family of constants '#1' already exists}{%
Use \protect\renewconstantfamily\space to override}}%
}
\@onlypreamble\newconstantfamily
\@onlypreamble\renewconstantfamily
\def\G@refundefinedconstanttrue{%
\gdef\@refundefinedconstant{%
\@latex@warning@no@line{%
There were undefined references to constants}}}
\let\@refundefinedconstant\relax
\def\cst@tmp@format{cst@undefined@format}
\def\cst@tmp@symbol{cst@undefined@symbol}
\long\def\@firstofthree#1#2#3{#1}
\long\def\@secondofthree#1#2#3{#2}
\long\def\@thirdofthree#1#2#3{#3}
\def\cst@undefined@format#1{}
\def\cst@undefined@symbol{%
\nfss@text{\reset@font\textrm{C\textsuperscript{st}\textbf{??}}}}
\def\@setrefconstant#1#2#3{%
\ifx#1\relax
\protect\G@refundefinedconstanttrue
\nfss@text{\reset@font\bfseries ??}%
\@latex@warning{Reference to constant `#3' on page \thepage \space
undefined}%
\else
\expandafter#2#1\null
\fi}
\def\@setfamconstant#1#2#3{%
\ifx#1\relax%
\def\cst@tmp@format{cst@undefined@format}\null
\def\cst@tmp@symbol{cst@undefined@symbol}\null
\else%
\def\cst@tmp@format{cst@format@\expandafter#2#1}\null
\def\cst@tmp@symbol{cst@symbol@\expandafter#2#1}\null
\fi}
\newcounter{cst@tmp@counter}
\def\@setcounterconstant#1#2#3{%
\ifx#1\relax
\protect\G@refundefinedconstanttrue
\@latex@warning{Reference to constant `#3' on page \thepage \space
undefined}%
\else
\setcounter{cst@tmp@counter}{\expandafter#2#1}\null
\fi}
\def\refconstant#1{%
\expandafter\@setrefconstant\csname cstr@#1\endcsname\@firstofthree{#1}}
\def\familyconstant#1{%
\expandafter\@setfamconstant\csname cstr@#1\endcsname\@thirdofthree{#1}}
\def\counterconstant#1{%
\expandafter\@setcounterconstant%
\csname cstr@#1\endcsname\@firstofthree{#1}}
\newcommand{\Cr}[1]{%
\counterconstant{#1}%
\familyconstant{#1}%
{\@nameuse{\cst@tmp@symbol}}_{\@nameuse{\cst@tmp@format}{cst@tmp@counter}}}
\newcommand{\C}[1][normal]{%
\@if@constant@exists{#1}{%
\expandafter\refstepcounterconstant{cst@counter@#1}%
{\@nameuse{cst@symbol@#1}}_{\@nameuse{cst@format@#1}{cst@counter@#1}}}%
{\PackageError{constants}{Family for constants '#1' not defined}{
Check the name or use \protect\newconstantfamily}}%
}
\newcommand{\Cl}[2][normal]{\C[#1]\labelconstant{#2}{\string #1}}
\def\pagerefconstant#1{%
\expandafter\@setrefconstant\csname cstr@#1\endcsname
\@secondofthree{#1}}
\def\refstepcounterconstant#1{\stepcounter{#1}%
\protected@edef\@currentlabelconstant
{\csname p@#1\endcsname\csname the#1\endcsname}%
}
\def\@newl@belconstant#1#2#3{{%
\@ifundefined{#1@#2}%
\relax
{\gdef \@multiplelabelsconstant {%
\@latex@warning@no@line{%
There were multiply-defined labels for constants}}%
\@latex@warning@no@line{Label for constant `#2' multiply defined}}%
\global\@namedef{#1@#2}{#3}
}}
\def\@currentlabelconstant{}
\def\newlabelconstant{\@newl@belconstant{cstr}}
\@onlypreamble\@newl@belconstant
\let \@multiplelabelsconstant \relax
\def\labelconstant#1#2{\@bsphack
\protected@write\@auxout{}%
{\string\newlabelconstant{#1}{{\@currentlabelconstant}{\thepage}{#2}}}%
\@esphack}
\AtEndDocument{
\clearpage
\let\@newl@belconstant\@empty
\begingroup
\if@filesw
\immediate\closeout\@mainaux
\let\@setckpt\@gobbletwo
\let\@newl@belconstant\@testdef
\let\@newl@bel\@testdef
\@tempswafalse
\makeatletter \input\jobname.aux
\fi
\@refundefinedconstant
\if@filesw
\ifx \@multiplelabelsconstant \relax
\if@tempswa
\@latex@warning@no@line{%
Label(s) for constants may have changed.
Rerun to get cross-references right}%
\fi
\else
\@multiplelabelsconstant
\fi
\fi
\endgroup
\deadcycles\z@\@@end
}
\newcommand{\resetconstant}[1][normal]{%
\@if@constant@exists{#1}{%
\setcounter{cst@counter@#1}{0}}{%
{\PackageError{constants}{Family for constants '#1' not defined}{%
Check the name or use \protect\newconstantfamily}}%
}}
\endinput
%%
%% End of file `constants.sty'.
|
