1% -*- LaTeX -*-
2%%% ====================================================================
3%%%  @LaTeX-style-file{
4%%%     author          = "Glenn Paulley",
5%%%     version         = "4",
6%%%     date            = "31 August 1992",
7%%%     time            = "09:42:44 199",
8%%%     filename        = "chicago.sty",
9%%%     address         = "Data Structuring Group
10%%%                        Department of Computer Science
11%%%                        University of Waterloo
12%%%                        Waterloo, Ontario, Canada
13%%%                        N2L 3G1",
14%%%     telephone       = "(519) 885-1211",
15%%%     FAX             = "(519) 885-1208",
16%%%     checksum        = "44674 264 1050 10394",
17%%%     email           = "gnpaulle@bluebox.uwaterloo.ca",
18%%%     codetable       = "ISO/ASCII",
19%%%     keywords        = "",
20%%%     supported       = "yes",
21%%%     abstract        = "Contains the LaTeX style command definitions
22%%%                        for the Chicago BibTeX styles chicago.bst and
23%%%                        chicagoa.bst. For details, see below.",
24%%%     docstring       = "The checksum field above contains a CRC-16
25%%%                        checksum as the first value, followed by the
26%%%                        equivalent of the standard UNIX wc (word
27%%%                        count) utility output of lines, words, and
28%%%                        characters.  This is produced by Robert
29%%%                        Solovay's checksum utility.",
30%%%  }
31%%% ====================================================================
32%
33% chicago.sty: Style file for use with bibtex style chicago.bst, for
34% bibliographies formatted according to the 13th Edition of the Chicago
35% Manual of Style.
36%
37% 'newapa.bst' was made from 'plain.bst', 'named.bst', and 'apalike.bst',
38% with lots of tweaking to make it look like APA style, along with tips
39% from Young Ryu and Brian Reiser's modifications of 'apalike.bst'.
40% newapa.sty formed the basis of this style, chicago.sty. Author-date
41% references in newapa.bst formed the basis for chicago.bst. Chicagoa.bst
42% supports annotations.
43%
44% Version 4 (August, 1992):
45% - fixed chicago.bst and chicagoa.bst to handle long author lists in
46%   sorting
47% - fixed chicago.bst and chicagoa.bst so that missing page numbers in
48%   ``article'' entries are handled correctly
49% - modified chicago.sty to format entries with 2nd and subsequent lines
50%   indented.
51%
52%   Citation format: (author-last-name year)
53%             (author-last-name and author-last-name year)
54%             (author-last-name et al. year)
55%             (author-last-name)
56%             author-last-name
57%             author-last-name (year)
58%             (author-last-name and author-last-name)
59%             (author-last-name et al.)
60%             (year) or (year,year)
61%             year or year,year
62%
63%   Reference list ordering: alphabetical by author or whatever passes
64%    for author in the absence of one.
65%
66% This BibTeX style has support for abbreviated author lists and for
67%    year-only citations.  This is done by having the citations
68%    actually look like
69%
70%    \citeauthoryear{full-author-info}{abbrev-author-info}{year}
71%
72% The LaTeX style has to have the following (or similar)
73%
74%     \let\@internalcite\cite
75%     \def\fullcite{\def\citeauthoryear##1##2##3{##1, ##3}\@internalcite}
76%     \def\fullciteA{\def\citeauthoryear##1##2##3{##1}\@internalcite}
77%     \def\shortcite{\def\citeauthoryear##1##2##3{##2, ##3}\@internalcite}
78%     \def\shortciteA{\def\citeauthoryear##1##2##3{##2}\@internalcite}
79%     \def\citeyear{\def\citeauthoryear##1##2##3{##3}\@internalcite}
80%
81% -------------------------------------------------------------------------
82% This file implements citations for the ``chicago'' bibliography style.
83%  Place it in a file called chicago.sty in the TeX search path.
84%(Placing it in the same directory as the LaTeX document should also work.)
85%
86%    This file is a modification of the ``newapa'' LaTeX style,
87%    originally adapted by Steven Spencer from the ``apalike'' LaTeX style.
88%    It was originally modified by Stephen N. Spencer, with further
89%    modifications by Young U. Ryu.
90%
91% The ``chicago'' BibTeX bibliography style creates citations with labels:
92%       \citeauthoryear{author-info}{abbrev. author-info}{year}
93%
94% These labels are processed by the following LaTeX commands:
95%
96%  \cite{key}
97%    which produces citations with full author list and year.
98%    eg. (Brown 1978; Jarke, Turner, Stohl, et al. 1985)
99%  \citeNP{key}
100%    which produces citations with full author list and year, but without
101%    enclosing parentheses:
102%    eg. Brown 1978; Jarke, Turner and Stohl 1985
103%  \citeA{key}
104%    which produces citations with only the full author list.
105%    eg. (Brown; Jarke, Turner and Stohl)
106%  \citeANP{key}
107%    which produces citations with only the full author list, without
108%    parentheses eg. Brown; Jarke, Turner and Stohl
109%  \citeN{key}
110%    which produces citations with the full author list and year, but
111%    can be used as nouns in a sentence; no parentheses appear around
112%    the author names, but only around the year.
113%      eg. Shneiderman (1978) states that......
114%    \citeN should only be used for a single citation.
115%  \shortcite{key}
116%    which produces citations with abbreviated author list and year.
117%  \shortciteNP{key}
118%    which produces citations with abbreviated author list and year.
119%  \shortciteA{key}
120%    which produces only the abbreviated author list.
121%  \shortciteANP{key}
122%    which produces only the abbreviated author list.
123%  \shortciteN{key}
124%    which produces the abbreviated author list and year, with only the
125%    year in parentheses. Use with only one citation.
126%  \citeyear{key}
127%    which produces the year information only, within parentheses.
128%  \citeyearNP{key}
129%    which produces the year information only.
130%
131% Abbreviated author lists use the ``et al.'' construct.
132%
133% `NP' means `no parentheses'.
134%
135% This LaTeX style file must be used with the ``chicago'' or ``chicagoa''
136% (annotated chicago style) BibTeX styles.
137%
138\typeout{Using Chicago Manual of Style bibliography: 31 August 1992}
139%
140% -------------------------------------------------------------------------
141%
142% Citation macros.
143%
144\let\@internalcite\cite
145%
146\def\cite{\def\@citeseppen{-1000}%
147    \def\@cite##1##2{(##1\if@tempswa , ##2\fi)}%
148    \def\citeauthoryear##1##2##3{##1 ##3}\@internalcite}
149\def\citeNP{\def\@citeseppen{-1000}%
150    \def\@cite##1##2{##1\if@tempswa , ##2\fi}%
151    \def\citeauthoryear##1##2##3{##1 ##3}\@internalcite}
152\def\citeN{\def\@citeseppen{-1000}%
153    \def\@cite##1##2{##1\if@tempswa , ##2)\else{)}\fi}%
154    \def\citeauthoryear##1##2##3{##1 (##3}\@citedata}
155\def\citeA{\def\@citeseppen{-1000}%
156    \def\@cite##1##2{(##1\if@tempswa , ##2\fi)}%
157    \def\citeauthoryear##1##2##3{##1}\@internalcite}
158\def\citeANP{\def\@citeseppen{-1000}%
159    \def\@cite##1##2{##1\if@tempswa , ##2\fi}%
160    \def\citeauthoryear##1##2##3{##1}\@internalcite}
161%
162\def\shortcite{\def\@citeseppen{-1000}%
163    \def\@cite##1##2{(##1\if@tempswa , ##2\fi)}%
164    \def\citeauthoryear##1##2##3{##2 ##3}\@internalcite}
165\def\shortciteNP{\def\@citeseppen{-1000}%
166    \def\@cite##1##2{##1\if@tempswa , ##2\fi}%
167    \def\citeauthoryear##1##2##3{##2 ##3}\@internalcite}
168\def\shortciteN{\def\@citeseppen{-1000}%
169    \def\@cite##1##2{##1\if@tempswa , ##2)\else{)}\fi}%
170    \def\citeauthoryear##1##2##3{##2 (##3}\@citedata}
171\def\shortciteA{\def\@citeseppen{-1000}%
172    \def\@cite##1##2{(##1\if@tempswa , ##2\fi)}%
173    \def\citeauthoryear##1##2##3{##2}\@internalcite}
174\def\shortciteANP{\def\@citeseppen{-1000}%
175    \def\@cite##1##2{##1\if@tempswa , ##2\fi}%
176    \def\citeauthoryear##1##2##3{##2}\@internalcite}
177%
178\def\citeyear{\def\@citeseppen{-1000}%
179    \def\@cite##1##2{(##1\if@tempswa , ##2\fi)}%
180    \def\citeauthoryear##1##2##3{##3}\@citedata}
181\def\citeyearNP{\def\@citeseppen{-1000}%
182    \def\@cite##1##2{##1\if@tempswa , ##2\fi}%
183    \def\citeauthoryear##1##2##3{##3}\@citedata}
184
185%
186% \@citedata and \@citedatax:
187%
188% Place commas in-between citations in the same \citeyear, \citeyearNP,
189% \citeN, or \shortciteN command.
190% Use something like \citeN{ref1,ref2,ref3} and \citeN{ref4} for a list.
191%
192\def\@citedata{%
193	\@ifnextchar [{\@tempswatrue\@citedatax}%
194				  {\@tempswafalse\@citedatax[]}%
195}
196
197\def\@citedatax[#1]#2{%
198\if@filesw\immediate\write\@auxout{\string\citation{#2}}\fi%
199  \def\@citea{}\@cite{\@for\@citeb:=#2\do%
200    {\@citea\def\@citea{, }\@ifundefined% by Young
201       {b@\@citeb}{{\bf ?}%
202       \@warning{Citation `\@citeb' on page \thepage \space undefined}}%
203{\csname b@\@citeb\endcsname}}}{#1}}%
204
205% don't box citations, separate with ; and a space
206% also, make the penalty between citations negative: a good place to break.
207%
208\def\@citex[#1]#2{%
209\if@filesw\immediate\write\@auxout{\string\citation{#2}}\fi%
210  \def\@citea{}\@cite{\@for\@citeb:=#2\do%
211    {\@citea\def\@citea{; }\@ifundefined% by Young
212       {b@\@citeb}{{\bf ?}%
213       \@warning{Citation `\@citeb' on page \thepage \space undefined}}%
214{\csname b@\@citeb\endcsname}}}{#1}}%
215
216% (from apalike.sty)
217% No labels in the bibliography.
218%
219\def\@biblabel#1{}
220
221% (from apalike.sty)
222% Set length of hanging indentation for bibliography entries.
223%
224\newlength{\bibhang}
225\setlength{\bibhang}{2em}
226
227% Indent second and subsequent lines of bibliographic entries. Stolen
228% from openbib.sty: \newblock is set to {}.
229
230\newdimen\bibindent
231\bibindent=1.5em
232\@ifundefined{refname}%
233   {\@ifundefined{chapter}%
234     {\newcommand{\refname}{References}}%
235     {\newcommand{\refname}{Bibliography}}%
236   }%
237   {}%
238\@ifundefined{chapter}%
239 {\def\thebibliography#1{\section*{\refname\@mkboth
240%%   {\uppercase{\refname}}{\uppercase{\refname}}}\list
241   {\refname}{\refname}}\list
242   {[\arabic{enumi}]}{\settowidth\labelwidth{[#1]}
243   \leftmargin\labelwidth
244   \advance\leftmargin\labelsep
245   \advance\leftmargin\bibindent
246   \itemindent -\bibindent
247   \listparindent \itemindent
248   \parsep \z@
249   \usecounter{enumi}}
250   \def\newblock{}
251   \sloppy
252   \sfcode`\.=1000\relax}}
253 {\def\thebibliography#1{\chapter*{\refname\@mkboth
254   {\refname}{\refname}}\list
255%%   {\uppercase{\refname}}{\uppercase{\refname}}}\list
256   {[\arabic{enumi}]}{\settowidth\labelwidth{[#1]}
257   \leftmargin\labelwidth
258   \advance\leftmargin\labelsep
259   \advance\leftmargin\bibindent
260   \itemindent -\bibindent
261   \listparindent \itemindent
262   \parsep \z@
263   \usecounter{enumi}}
264   \def\newblock{}
265   \sloppy
266   \sfcode`\.=1000\relax}}
267