* Added nobib documentclass option to suppress loading of natbib (and redefinition of \cite).

git-svn-id: https://tufte-latex.googlecode.com/svn/trunk@173 516e2f36-ce3a-0410-bea4-1d4a03f5df72

tufte-common.def

@@ -39,6 +39,11 @@
 \DeclareOptionX[tufte]<common>{ls}{\setboolean{@tufte@letterspace}{true}}
 \DeclareOptionX[tufte]<common>{nols}{\setboolean{@tufte@letterspace}{false}}
 
+%%
+% `nobib' option -- doesn't load natbib or adjust the \cite command
+\newboolean{@tufte@loadnatbib}\setboolean{@tufte@loadnatbib}{true}
+\DeclareOptionX[tufte]<common>{nobib}{\setboolean{@tufte@loadnatbib}{false}}
+
 %%
 % `titlepage' option -- creates a full title page with \maketitle
 
@@ -865,17 +870,19 @@
 %%
 % Citations should go in the margin as sidenotes
 
-\RequirePackage{natbib}
-\RequirePackage{bibentry}        % allows bibitems to be typeset outside thebibliography environment
-% Redefine the \BR@b@bibitem command to fix a bug with bibentry+chicago style
-\renewcommand\BR@b@bibitem[2][]{%
-  \ifthenelse{\isempty{#1}}%
-    {\BR@bibitem{#2}}%
-    {\BR@bibitem[#1]{#2}}%
-  \BR@c@bibitem{#2}%
-}
-\nobibliography*                % pre-loads the bibliography keys
-\providecommand{\doi}[1]{\textsc{doi:} #1}% pre-defining this so it may be used before the \bibliography command it issued
+\ifthenelse{\boolean{@tufte@loadnatbib}}{%
+  \RequirePackage{natbib}%
+  \RequirePackage{bibentry}% allows bibitems to be typeset outside thebibliography environment
+  % Redefine the \BR@b@bibitem command to fix a bug with bibentry+chicago style
+  \renewcommand\BR@b@bibitem[2][]{%
+    \ifthenelse{\isempty{#1}}%
+      {\BR@bibitem{#2}}%
+      {\BR@bibitem[#1]{#2}}%
+    \BR@c@bibitem{#2}%
+  }%
+  \nobibliography*% pre-loads the bibliography keys
+  \providecommand{\doi}[1]{\textsc{doi:} #1}% pre-defining this so it may be used before the \bibliography command it issued
+}{}
 
 %%
 % Normal \cite behavior
@@ -947,7 +954,9 @@
 %%
 % Set the default \cite style.  This is set and reset by the \sidenote command.
 
-\let\cite\@tufte@normal@cite
+\ifthenelse{\boolean{@tufte@loadnatbib}}{%
+  \let\cite\@tufte@normal@cite
+}{}
 
 %%
 % Transform existing \footnotes into \sidenotes
@@ -1038,7 +1047,9 @@
 
 % #1 = footnote num, #2 = vertical offset, #3 = footnote text
 \long\def\@tufte@sidenote[#1][#2]#3{%
-  \let\cite\@tufte@infootnote@cite%   use the in-sidenote \cite command
+  \ifthenelse{\boolean{@tufte@loadnatbib}}{%
+    \let\cite\@tufte@infootnote@cite%   use the in-sidenote \cite command
+  }{}%
   \gdef\@tufte@citations{}%           clear out any old citations
   \ifthenelse{\NOT\isempty{#2}}{%
     \gsetlength{\@tufte@sidenote@vertical@offset}{#2}%
@@ -1059,7 +1070,9 @@
     \@footnotemark\@footnotetext[\@tufte@sidenote@vertical@offset]{#3}%
   }%
   \@tufte@print@citations%            print any citations
-  \let\cite\@tufte@normal@cite%       go back to using normal in-text \cite command
+  \ifthenelse{\boolean{@tufte@loadnatbib}}{%
+    \let\cite\@tufte@normal@cite%       go back to using normal in-text \cite command
+  }{}%
   \unskip\ignorespaces%               remove extra white space
   \kern-\multiplefootnotemarker%      remove \kern left behind by sidenote
   \kern\multiplefootnotemarker\relax% add new \kern here to replace the one we yanked
@@ -1072,11 +1085,15 @@
 % Sidenote without the footnote mark
 
 \newcommand\marginnote[2][0pt]{%
-  \let\cite\@tufte@infootnote@cite%   use the in-sidenote \cite command
+  \ifthenelse{\boolean{@tufte@loadnatbib}}{%
+    \let\cite\@tufte@infootnote@cite%   use the in-sidenote \cite command
+  }{}%
   \gdef\@tufte@citations{}%           clear out any old citations
   \marginpar{\hbox{}\vspace*{#1}\@tufte@marginnote@font\@tufte@marginnote@justification\@tufte@margin@par\vspace*{-1\baselineskip}\noindent #2}%
   \@tufte@print@citations%            print any citations
-  \let\cite\@tufte@normal@cite%       go back to using normal in-text \cite command
+  \ifthenelse{\boolean{@tufte@loadnatbib}}{%
+    \let\cite\@tufte@normal@cite%       go back to using normal in-text \cite command
+  }{}%
 }
 
 
@@ -1750,11 +1767,17 @@
 % Redefine \bibsection to not mark the running heads.
 % (Code modified from natbib.sty.)
 
-\@ifundefined{chapter}%
-  {\renewcommand\bibsection{\section*{\refname}}}
-  {\@ifundefined{NAT@sectionbib}%
-    {\renewcommand\bibsection{\chapter{\bibname}}}
-    {\renewcommand\bibsection{\section*{\bibname}}}}
+\ifthenelse{\boolean{@tufte@loadnatbib}}{%
+  \@ifundefined{chapter}{%
+    \renewcommand\bibsection{\section*{\refname}}%
+  }{%
+    \@ifundefined{NAT@sectionbib}{%
+      \renewcommand\bibsection{\chapter{\bibname}}%
+    }{%
+      \renewcommand\bibsection{\section*{\bibname}}%
+    }%
+  }%
+}
 
 %%
 % An index environment to mimic Tufte's indexes