selective.sty

%%
%% This is file `selective.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% selective.dtx  (with options: `package')
%% 
%% IMPORTANT NOTICE:
%% 
%% For the copyright see the source file.
%% 
%% Any modified versions of this file must be renamed
%% with new filenames distinct from selective.sty.
%% 
%% For distribution of the original source see the terms
%% for copying and modification in the file selective.dtx.
%% 
%% This generated file may be distributed as long as the
%% original source files, as listed above, are part of the
%% same distribution. (The sources need not necessarily be
%% in the same archive or directory.)
%%
%% © 2013 Sebastián González
%%
\NeedsTeXFormat{LaTeX2e}[1999/12/01]
\ProvidesPackage{eclectex/selective}
  [2013/07/11 v0.0 Utilities to selectively typeset text]
\RequirePackage{eclectex/lists}
\RequirePackage{environ}
\RequirePackage{pgffor}

\def\selective@tags{}
\newif\if@body@tags@found
\newif\if@selective@tag@found
\NewEnviron{selective}[1]
  {\def\tagConjunctions{#1}%
   \@body@tags@foundtrue%
   \foreach \tagDisjuction in \tagConjunctions
     {\@selective@tag@foundfalse%
      \foreach \activeTag in \selective@tags
        {\foreach \bodyTag in \tagDisjuction
           {\ifdefstrequal{\activeTag}{\bodyTag}
              {\global\@selective@tag@foundtrue\breakforeach}{}}}%
      \if@selective@tag@found\else%
        \global\@body@tags@foundfalse\breakforeach%
      \fi}%
   \if@body@tags@found%
     \BODY%
   \fi}

\newcommand{\selectiveTag}[1]
  {\listInclude{\selective@tags}{#1}%
   \edef\implied@tags{\csuse{#1@tag@implications}}%
   %\ifcsvoid{#1@tag@implications}{}
   \foreach \implied@tag in \implied@tags
     {\selectiveTag{\implied@tag}}}

\newcommand{\selectiveTagImplies}[2]
  {\csdef{#1@tag@implications}{#2}}
\endinput
%%
%% End of file `selective.sty'.