opcit

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+%%
+%% This is file `opcit.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% opcit.dtx  (with options: `package')
+%% Part of the `opcit' project: bibliographical references as footnotes.
+%% 
+%% Copyright 2002 Federico Garcia
+%% 
+\NeedsTeXFormat{LaTeX2e}[1995/12/01]
+\ProvidesPackage{opcit}[2002/12/25 Footnote references (Federico Garcia)]
+\RequirePackage{xspace}
+\newcommand{\opcit@bst}{opcit}
+\DeclareOption*{\PackageInfo{opcit}{%
+    `\CurrentOption' used as bibliography style}%
+    \let\opcit@bst\CurrentOption}
+\ProcessOptions
+\newif\ifopcit@bbl\opcit@bblfalse
+\newif\ifopcit@footnote\opcit@footnotefalse
+\newif\ifperi@d\peri@dfalse
+\newlength{\sameauthorsrule}\setlength{\sameauthorsrule}{23pt}
+\newtoks\opcit@redefs
+\newcommand{\newBibCommand}[3]{%
+    \newcommand#1{#2}%
+    \opcit@redefs\expandafter{\the\opcit@redefs%
+        \renewcommand#1{#3}}}
+\newcommand{\opcitstart}{\relax}
+\newBibCommand{\opcitend}{\relax}{\ifnum\spacefactor=\sfcode`?\else.\fi}
+\newBibCommand{\bibparenthesis[1]}{ (#1)}{. \newblock #1}
+\newBibCommand{\bibIn}{in}{In}
+\newBibCommand{\bibpunctuation}{%
+    \ifnum\spacefactor=\sfcode`.\else,\fi\xspace}{%
+    \ifnum\spacefactor=\sfcode`?\else.\fi\xspace}
+\newcommand{\sameauthors}{\rule{\sameauthorsrule}{.4pt}}
+\newBibCommand{\biblastnames[1]}{%
+    \global\@namedef{\@curr@bibitem @authors}{#1}}{\relax}
+\newBibCommand{\bibhereafter[1]}{%
+    \global\@namedef{\@curr@bibitem @hereafter}{#1}}{\relax}
+\newcommand{\last@cited}{)OpcitFirst(}
+\newcommand{\opcittext}{Op.~Cit.}
+\newcommand{\idemtext}{Idem}
+\bibliographystyle{\opcit@bst}
+\bgroup
+    \renewenvironment{thebibliography}[1]{\relax}{\relax}
+    \def\bibitem#1#2\opcitstart #3\bibpunctuation \newblock#4\opcitend{%
+        \ifx#3\sameauthors\else\def\@lastauthors{#3}\fi
+        \global\expandafter\edef\csname#1@author\endcsname{\@lastauthors}%
+        \global\def\@curr@bibitem{#1}%
+        \global\expandafter\def\csname#1\endcsname{\@nameuse{#1@author}, #4}%
+        \global\@namedef{#1@star}{#4}%
+        \bibhereafter{\opcittext}%
+        #2}
+    \InputIfFileExists{\jobname.bbl}{\global\opcit@bbltrue}%
+        {\global\opcit@bblfalse\PackageWarningNoLine{opcit}{%
+            No information found about bibliographical references.}}
+\egroup
+\ifopcit@bbl
+\renewcommand{\cite}{\@ifstar{\opcit@cite@star}{\opcit@cite}}%
+\newcommand{\opcit@cite}[2][.]{\nocite{#2}%
+    \ifnum\interlinepenalty=\interfootnotelinepenalty\opcit@footnotetrue%
+        \else\opcit@footnotefalse\expandafter\footnote\fi%
+    {\@nameuse{#2}\ifx#1.\check@for@period{\@nameuse{#2}}%
+        \else\check@for@period{#1}%
+        {, #1}\fi%
+        \ifopcit@footnote\peri@dtrue\fi%
+        \ifperi@d\else.\fi}%
+    \renew@cites{#2}}
+\newcommand{\opcit@cite@star}[2][.]{\nocite{#2}%
+    \ifnum\interlinepenalty=\interfootnotelinepenalty\opcit@footnotetrue%
+        \else\opcit@footnotefalse\expandafter\footnote\fi%
+    {\@nameuse{#2star}\ifx#1.\check@for@period{\@nameuse{#2}}%
+        \else\check@for@period{#1}%
+        {, #1}\fi%
+        \ifopcit@footnote\peri@dtrue\fi%
+        \ifperi@d\else.\fi}%
+    \renew@cites{#2}}
+\fi
+\newcommand{\renew@cites}[1]{%
+    \global\expandafter\edef\csname\last@cited\endcsname{%
+        \@nameuse{\last@cited @authors},%
+        ~{\noexpand\em\@nameuse{\last@cited @hereafter}}}%
+    \global\expandafter\edef\csname\last@cited star\endcsname{%
+        {\noexpand\em\@nameuse{\last@cited @hereafter}}}%
+    \global\def\last@cited{#1}%
+    \global\@namedef{#1}{{\em\idemtext}}%
+    \global\@namedef{#1star}{{\em\@nameuse{#1@hereafter}}}%
+    \global\def\hereafter{\@nameuse{#1@hereafter}}}
+\def\check@for@period#1{{\normalsfcodes\setbox0\hbox{#1%
+    \ifnum\spacefactor=\sfcode`.\global\peri@dtrue\else%
+    \global\peri@dfalse\fi}}}
+\let\opcit@bibliography\bibliography
+\renewcommand{\bibliography}{\the\opcit@redefs\opcit@bibliography}
+\newcommand{\thebib@renew}{}
+\@ifclassloaded{article}{%
+    \renewcommand{\thebib@renew}{\section*{\refname}\@mkboth{\refname}{\refname}}}{%
+    \renewcommand{\thebib@renew}{\chapter*{\bibname}\@mkboth{\bibname}{\bibname}}}%
+\renewenvironment{thebibliography}[1]
+     {\thebib@renew%
+      \the\opcit@redefs%
+      \list{}%
+           {\setlength\labelwidth{\z@}%
+            \leftmargin\bibindent
+            \itemindent -\bibindent
+            \parsep \z@
+            \@openbib@code
+            \usecounter{enumiv}%
+            \let\p@enumiv\@empty
+            \renewcommand\theenumiv{\@arabic\c@enumiv}}%
+      \sloppy
+      \clubpenalty4000
+      \@clubpenalty \clubpenalty
+      \widowpenalty4000%
+      \sfcode`\.\@m}
+     {\def\@noitemerr
+       {\@latex@warning{Empty `thebibliography' environment}}%
+      \endlist}
+\endinput
+%%
+%% End of file `opcit.sty'.