summaryrefslogtreecommitdiff
path: root/macros/latex/contrib/epigraph-keys/epigraph-keys.sty
blob: 3dceba738e3ed9236f57c59608fcf0b558a7a8a4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
% Benjamin McKay 
% b.mckay@ucc.ie
% see epigraph-keys.pdf or epigraph-keys.tex for more information.
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{epigraph-keys}[2020/04/22 v1.0 Epigraphs using key values]
\RequirePackage{enumitem}
\RequirePackage{pgfkeys}
\RequirePackage{conditionals}
\RequirePackage{microtype}

\ProcessOptions\relax

\makeatletter
{\catcode`\!=8 % funny catcode so ! will be a delimiter
 \catcode`\Q=3 % funny catcode so Q will be a delimiter
\long\gdef\given#1{88\fi\Ifbl@nk#1QQQ\empty!}
\long\gdef\blank#1{88\fi\Ifbl@nk#1QQ..!}% if null or spaces
\long\gdef\nil#1{\IfN@Ught#1* {#1}!}% if null
\long\gdef\IfN@Ught#1 #2!{\blank{#2}}
\long\gdef\Ifbl@nk#1#2Q#3!{\ifx#3}% same as above
}
\makeatother

% The expression \if\expblank{...} x \else y \if gives x when ... expands out to be blank space.
\def\expblank{\expandafter\blank\expandafter}
\def\expgiven{\expandafter\given\expandafter}
\def\expnil{\expandafter\nil\expandafter}
\def\beforeepigraphskip{0pt}
\def\afterepigraphskip{\baselineskip}
\def\epigraphtextindent{2cm}
\def\epigraphauthorsourceindent{1.5cm}
\def\epigraphtextwidth{\linewidth}
\def\epigraphstyle{\small}
\def\epigraphdash{---}
\def\epigraphquotefont{\itshape}
\def\epigraphtranslationfont{}

\pgfkeys{
	/epigraph/.is family, 
	/epigraph,
	default/.style = {
		author = {}, 
		source = {}, 
		etc = {}, 
		translation = {},
		},
	author/.store in = \epigraphauthor,
	source/.store in = \epigraphsource,
	etc/.store in = \epigraphetc,
	translation/.store in = \epigraphtranslation,
	before skip/.store in = \beforeepigraphskip,
	before skip/.default = 0pt,
	after skip/.store in = \afterepigraphskip,
	after skip/.default = \baselineskip,
	text indent/.store in = \epigraphtextindent,
	text indent/.default = 2cm,
	author and source indent/.store in = \epigraphauthorsourceindent,
	author and source indent/.default = 1.5cm,
	width/.store in = \epigraphtextwidth,
	width/.default = \linewidth,
	style/.store in = \epigraphstyle,
	style/.default = \small,
	dash/.store in = \epigraphdash,
	dash/.default = ---,
	quote style/.store in = \epigraphquotefont,
	quote style/.default = {},
	translation style/.store in = \epigraphtranslationfont,
	translation style/.default = {},
}

\ifdefined\epigraph\else\xdef\epigraph{}\fi
\renewcommand{\epigraph}[2][]{
	\pgfkeys{/epigraph,default,#1}
	\epigraphstyle\vspace{\beforeepigraphskip}
	\begin{enumerate}[leftmargin=\epigraphtextindent]
		\item[]
		{%%
		\epigraphquotefont{}%
		\begin{minipage}{\epigraphtextwidth}%
			#2%
		\end{minipage}%
		}%%
		\if\expblank{\epigraphtranslation}
		\else
  			\item[]
			{%
			\epigraphtranslationfont%
			{%%%%
			\begin{minipage}{\epigraphtextwidth}%
				\epigraphtranslation%
			\end{minipage}
			}%%%%
			}%
		\fi
		\if\expblank{\epigraphauthor}
			\if\expblank{\epigraphsource}
				\if\expblank{\epigraphetc}
				\else\epigraphetc
				\fi
			\else
				\begin{enumerate}[leftmargin=\epigraphauthorsourceindent]%
					\item[\epigraphdash]%
					{%%
					\smallerSmallCapsTracking{}\textsc{\epigraphsource}
					}%%
					\if\expblank{\epigraphetc}%
					\else{}, \epigraphetc
					\fi
				\end{enumerate}
			\fi
		\else
			\begin{enumerate}[leftmargin=\epigraphauthorsourceindent]%
				\item[\epigraphdash] \epigraphauthor \\
				\if\expblank{\epigraphsource}%
					\if\expblank{\epigraphetc}%
					\else\epigraphetc%
					\fi%
				\else%
					\begingroup
      				\smallerSmallCapsTracking{}\textsc{\epigraphsource}%
					\endgroup
			      	\if\expblank{\epigraphetc}%
			      	\else%
			      		\begingroup%
			      		, \epigraphetc
			      		\endgroup
      				\fi
				\fi
			\end{enumerate}
		\fi
	\end{enumerate}
	\vspace{\afterepigraphskip}
	\par\noindent
}

\newcommand{\smallerSmallCapsTracking}%
{%
\SetTracking{encoding={*}, shape=sc}{20}%
}%

\ifdefined\epigraphs\else\xdef\epigraphs{}\fi
\renewenvironment{epigraphs}{\begin{enumerate}}{\end{enumerate}}
\ifdefined\qitem\else\xdef\qitem{}\fi
\renewcommand{\qitem}[2][]{\item[]\epigraph[#1]{#2}}