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\NeedsTeXFormat{LaTeX2e}%
\ProvidesPackage{assoccnt}[2014/08/13 v0.2 -- Associate counters stepping]%
%%%
%% License: LaTeX Project Public License
%% Copyright (2014) Dr. Christian Hupfer
%% Author: Christian Hupfer christian.hupfer@siebenfelsen.de
%%
%%
%%%%
%%% Some options later on
%%%%
\RequirePackage{etoolbox}[2011/01/03 2.2]%
\let\@@assoccnt@standardstepcounter\stepcounter%
\let\@@assoccnt@standardrefstepcounter\refstepcounter%
% Just for a quick suffix
\newcommand{\@@associatedcounterslistsuffix}{%
AssociatedCountersList%
}%
%%% Internal macro to generate the name of the list of associated counters
\newcommand{\@@assoccnt@@generatelistname}[1]{%
% #1 Name of the driver counter
@#1\@@associatedcounterslistsuffix
}%
\newcommand{\@@assoccnt@@addassociatedcounter}[2]{%
\ifcsdef{#1}{%
\ifinlistcs{#2}{#1}{%
% Do nothing, since counter is already in the list
}{%
\listcsadd{#1}{#2}%
}%
}{%
% Nothing in here
}%
}%
% This command defines a list of counters, that should be stepped also if the driver counter
% is `\stepcounter`ed.
% A self - association is not possible, as this would lead to inconsistent counting
\newcommand{\DeclareAssociatedCounters}[2]{%
% #1 --> driver counter
% #2 --> CSV list of other counters, that should be stepped, if the driver counter is stepped
\ifcsdef{\@@assoccnt@@generatelistname{#1}}{%
% % Nothing to be done --> List already exists
\GenericWarning{}{Warning: List of associated counters for counter #1 already exists}%
}{%
\csgdef{\@@assoccnt@@generatelistname{#1}}{}% Define some global list
}%
% Now add the counter names from #2 to the list
% Note: Currently, it is not checked whether a counter is already added!
\forcsvlist{\@@assoccnt@@addassociatedcounter{\@@assoccnt@@generatelistname{#1}}}{#2}%
% Now remove an accidental self-association
\RemoveAssociatedCounter{#1}{#1}%
}%
%%% A generic macro, that removes a list entry from the list by
%%% defining a temporary list and omitting the
\newcommand{\@@assoccnt@removefromlist}[2]{%
% #1 list name
% #2 element to be removed
\ifcsdef{#1}{%
\gdef\@@mytemplist{}%
\renewcommand*{\do}[1]{%
\ifstrequal{##1}{#2}{
% Later one some success routine etc. ???
}{%
\listgadd{\@@mytemplist}{##1}%
}%
}%
\dolistcsloop{#1}%
\csxdef{#1}{\@@mytemplist}%
}{%
% The list is not defined at all, can't remove something from something not existing...
}%
}%
%% Remove a particular counter from the list
\newcommand{\RemoveAssociatedCounter}[2]{%
% #1 arg: driver counter
% #2 arg: counter name to be removed
\@@assoccnt@removefromlist{\@@assoccnt@@generatelistname{#1}}{#2}%
}%
%% Remove a CSV list of counters from the list of associated counters
\newcommand{\RemoveAssociatedCounters}[2]{%
% #1 arg: driver counter
% #2 arg: CSV list of counters to be removed
\forcsvlist{\RemoveAssociatedCounter{#1}}{#2}%
}%
%% Remove all associated counters from the list
\newcommand{\ClearAssociatedCountersList}[1]{%
% #1 arg: driver counter
\csundef{\@@assoccnt@@generatelistname{#1}}%
}%
%% Test if a counter is an associated counter of driver counter
\newcommand{\IfIsAssociatedCounter}[4]{%
% #1 arg: driver counter
% #2 arg: (possibly) associated counter
% #3 arg: Code for execution on true branch
% #4 arg: Code for execution on false branch
\ifcsdef{\@@assoccnt@@generatelistname{#1}}{%
\ifinlistcs{#2}{\@@assoccnt@@generatelistname{#1}}{%
#3%
}{%
#4%
}%
}{% List does not exist, so it's not associated
#4%
}%
}%
%%% The stepcounter wrapper for the standard stepcounter command
%%% This is just for convenience, if the command as to be improved/extended later on in future
\newcommand{\@@assoccnt@stepcounter}[1]{%
\@@assoccnt@standardstepcounter{#1}%
}%
%%% Not needed so far
\newcommand{\@@assoccnt@refstepcounter}[1]{%
\@@assoccnt@standardrefstepcounter{#1}%
}%
%%%% Redefinition of the \stepcounter command
\renewcommand{\stepcounter}[1]{%
\@@assoccnt@standardstepcounter{#1}% Traditional behaviour, since this is expected!
\ifcsdef{\@@assoccnt@@generatelistname{#1}}{% Check first, whether the list exists at all,
\forlistcsloop{\@@assoccnt@stepcounter}{\@@assoccnt@@generatelistname{#1}}% March through the list
}{%
%No list -> do nothing at all
}%
}%
%%%% Redefinition of the \stepcounter command
\renewcommand{\refstepcounter}[1]{%
\@@assoccnt@standardstepcounter{#1}% Traditional behaviour, since this is expected!
\protected@edef\@currentlabel%
{\csname p@#1\endcsname\csname the#1\endcsname}%
\ifcsdef{\@@assoccnt@@generatelistname{#1}}{% Check first, whether the list exists at all,
\forlistcsloop{\@@assoccnt@stepcounter}{\@@assoccnt@@generatelistname{#1}}% March through the list
}{%
%No list -> do nothing at all
}%
}%
\endinput%
|
