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%% Copyright (C) 2013 Eduardo C. Lourenço de Lima
%% 
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3 of this license or (at your option) any later
%% version.  The latest version of this license is in
%% 
%%   http://www.latex-project.org/lppl.txt
%% 
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.
%% 
\NeedsTeXFormat{LaTeX2e}[1996/06/01]
\ProvidesPackage{sepfootnotes}[2013/01/17 v0.2 Footnotes in separate file]

\newcommand\sep@packagename{sepfootnotes}

% ********************************* Public ************************************

% ==================== shared by footnotes and endnotes =======================

\newcommand\sep@new [1]
{\newcounter{#1note}%
 \expandafter\newcommand\csname      #1note\endcsname        [1] {\csname #1notemark\endcsname{##1}\csname #1notetext\endcsname{##1}}%
 \expandafter\newcommand\csname      #1notecontent\endcsname [2] {\sep@namedef {#1} {##1} {##2}}%
 \expandafter\newcommand\csname print#1note\endcsname        [1] {\sep@nameuse {#1} {##1}}%
 \expandafter\newcommand\csname   the#1mark\endcsname            {\csname the#1note\endcsname}}%

% -------------------------------- footnotes ----------------------------------

\newcommand\newfootnotes{\@ifstar\sep@newfootnotesfree\sep@newfootnotes}

\newcommand\sep@newfootnotes [1]
{\sep@new{#1}%
 \expandafter\renewcommand\csname    #1note\endcsname        [1] {\footnote      {\csname print#1note\endcsname{##1}}}%
 \expandafter\newcommand\csname      #1notetext\endcsname    [1] {\footnotetext  {\csname print#1note\endcsname{##1}}}%
 \expandafter\newcommand\csname      #1notemark\endcsname    [1] {\footnotemark}%
 \expandafter\renewcommand\csname the#1mark\endcsname            {\thefootnote}}

\newcommand\sep@newfootnotesfree [1]
{\sep@new{#1}%
 \expandafter\newcommand\csname      #1notemark\endcsname    [1] {\sep@mark    {#1} {##1}}%
 \expandafter\newcommand\csname      #1notetext\endcsname    [1] {\sep@markset {#1}\@footnotetext{\csname print#1note\endcsname {##1}}}}

\newcommand\newsymbolfootnotes [2] [page]
{\newfootnotes*                                                  {#2}%
 \@addtoreset                                                    {#2note} {#1}%
 \expandafter\renewcommand\csname the#2mark\endcsname            {\fnsymbol {#2note}}}

% -------------------------------- endnotes -----------------------------------

\newcommand\newendnotes [1]
{\sep@new                                                        {#1}%
 \sep@openout                                                    {#1}%
 \expandafter\newcommand\csname      #1notemark\endcsname        [1] {\sep@mark    {#1} {##1}}%
 \expandafter\newcommand\csname      #1notetext\endcsname        [1] {\sep@markset {#1}\sep@write {#1} {\expandafter\noexpand\csname do#1note\endcsname{\arabic{#1note}}{\unexpanded{##1}}}}%
 \expandafter\newcommand\csname addto#1notes\endcsname       [1] {\sep@write {#1} {\unexpanded{##1}}}%
 \expandafter\newcommand\csname   the#1notes\endcsname           {\sep@close {#1}\setcounter {#1note} {0}\begin{#1notes}\input\sep@filename{#1}\end{#1notes}}%
 \expandafter\newcommand\csname  make#1mark\endcsname            {\hbox{\normalfont\csname the#1mark\endcsname.\ }}%
 \expandafter\newcommand\csname      #1noteformat\endcsname      {\noindent\rightskip\z@ \leftskip\z@ \leavevmode\llap{\csname make#1mark\endcsname}}%
 \expandafter\newcommand\csname    do#1note\endcsname        [2] {\sep@refsetcounter{#1note}{##1}\par\csname #1noteformat\endcsname\csname print#1note\endcsname{##2}\par}%
 \expandafter\newcommand\csname      #1notesize\endcsname        {\footnotesize}
 \newenvironment                    {#1notes}                    {\csname #1notesize\endcsname\setlength\parskip\footnotesep} {}}


% ********************************* Private ***********************************

% ---------------------------------- files ------------------------------------

\newcommand\sep@filename [1] {\jobname.ent-#1}
\newcommand\sep@openout  [1] {\expandafter          \newwrite\csname sep@fileout#1\endcsname\immediate\expandafter\openout\csname sep@fileout#1\endcsname=\sep@filename#1\relax}
\newcommand\sep@write    [2] {\immediate               \write\csname sep@fileout#1\endcsname {#2}}%
\newcommand\sep@close    [1] {\immediate\expandafter\closeout\csname sep@fileout#1\endcsname\relax}

% ---------------------------------- table ------------------------------------

\newcommand\sep@nameuse  [2] {\@ifundefined{sepfootnotes@text@#1@#2} {} {\@nameuse{sepfootnotes@text@#1@#2}}}
\newcommand\sep@namedef  [3] {\@ifundefined{sepfootnotes@text@#1@#2}    {\@namedef{sepfootnotes@text@#1@#2}{#3}} {\PackageError {\sep@packagename} {`#2' is already in use} {The key `#2' already identifies a note content.\MessageBreak Solution: Use another key.}}}

% ---------------------------------- marks ------------------------------------

\newcommand\sep@markset  [1] {\protected@xdef\@thefnmark{\csname the#1mark\endcsname}}
\newcommand\sep@mark     [2] {\stepcounter {#1note}\sep@markset {#1}\@footnotemark}

% ---------------------- cross-references and counters ------------------------

\newcommand\sep@refsetcounter [2] {\setcounter{#1}{#2}\protected@edef\@currentlabel{\csname p@#1\endcsname\csname the#1\endcsname}}

% ********************************* Default ***********************************

% ------------------------- footnotes: \sepfootnote ---------------------------

%% Default: The default \sepfootnote family relies on \footnote
\newfootnotes{sepfoot}

\endinput
%%
%% End of file `sepfootnotes.sty'.