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1%%
2%% This is file `kalendarium.sty',
3%% generated with the docstrip utility.
4%%
5%% The original source files were:
6%%
7%% kalendarium.dtx (with options: `package')
8%% ----------------------------------------------------------------
9%% kalendarium --- Format dates according to the Roman calendar
10%% E-mail: aws@awsmith.us
11%% Released under the LaTeX Project Public License v1.3c or later
12%% See http://www.latex-project.org/lppl.txt
13%% ----------------------------------------------------------------
14%%
15\NeedsTeXFormat{LaTeX2e}
16\ProvidesPackage{kalendarium}[2018/06/14 1.0 Format dates using the Roman calendar]
17\RequirePackage{xparse}
18\RequirePackage{l3keys2e}
19\ProvidesExplPackage
20 {kalendarium}
21 {2018-06-17}{1.0}
22 {A package to display dates in the classical Roman style}
23\ExplSyntaxOn
24\keys_define:nn {kalendarium}{
25 abbreviate .bool_set:N = \l_kal_abbreviate_bool,
26 abbreviate .initial:n = { false },
27 periods .bool_set:N = \l_kal_periods_bool,
28 periods .initial:n = { true },
29 era .tl_set:N = \l_kal_era_tl,
30 era .initial:n = { ad },
31 julian .bool_set:N = \l_kal_julian_bool,
32 julian .initial:n = { false },
33 dayfmt .tl_set:N = \l_kal_dayfmt_tl,
34 dayfmt .initial:n = { roman },
35 yearfmt .tl_set:N = \l_kal_yearfmt_tl,
36 yearfmt .initial:n = { roman },
37 antediem .bool_set:N = \l_kal_antediem_bool,
38 antediem .initial:n = { true },
39 bissextum .bool_set:N = \l_kal_bissextum_bool,
40 bissextum .initial:n = { true },
41 oldmonths .bool_set:N = \l_kal_oldmonths_bool,
42 oldmonths .initial:n = { false }
43}
44\ProcessKeysOptions {kalendarium}
45\clist_new:N \c_kal_day_acc_clist
46\clist_set:Nn \c_kal_day_acc_clist {
47 primum,secundum,tertium,quartum,quintum,sextum,septimum,octavum,nonum,decimum,
48 undecimum,duodecimum,tertium\ decimum,quartum\ decimum,quintum\ decimum,
49 sextum\ decimum,septimum\ decimum,duodevicesimum,undevicesimum,bissextum
50}
51\clist_new:N \c_kal_day_abl_clist
52\clist_set:Nn \c_kal_day_abl_clist {
53 primo,secundo,tertio,quarto,quinto,sexto,septimo,octavo,nono,decimo,
54 undecimo,duodecimo,tertio\ decimo,quarto\ decimo,quinto\ decimo,
55 sexto\ decimo,septimo\ decimo,duodevicesimo,undevicesimo,bissexto
56}
57\clist_new:N \c_kal_weekday_gen_clist
58\clist_set:Nn \c_kal_weekday_gen_clist {
59 Saturni,Solis,Lunae,Martis,Mercurii,Iovis,Veneris
60}
61\clist_new:N \c_kal_weekday_abbr_clist
62\clist_set:Nn \c_kal_weekday_abbr_clist {
63 Sat,Sol,Lun,Mart,Merc,Iov,Ven
64}
65\clist_new:N \c_kal_month_acc_clist
66\clist_set:Nn \c_kal_month_acc_clist {
67 Ianuarias,Februarias,Martias,Apriles,Maias,Iunias,Iulias,Augustas,
68 Septembres,Octobres,Novembres,Decembres,Quintiles,Sextiles,Augustas
69}
70\clist_new:N \c_kal_month_abl_clist
71\clist_set:Nn \c_kal_month_abl_clist {
72 Ianuariis,Februariis,Martiis,Aprilibus,Maiis,Iuniis,Iuliis,
73 Augustis,Septembribus,Octobribus,Novembribus,Decembribus,
74 Quintilibus,Sextilibus,Augustis
75}
76\clist_new:N \c_kal_month_abbr_clist
77\clist_set:Nn \c_kal_month_abbr_clist {
78 Ian,Feb,Mar,Apr,Mai,Iun,Iul,Aug,Sept,Oct,Nov,Dec,Quin,Sex,Aug
79}
80\clist_new:N \c_kal_month_lengths_clist
81\clist_set:Nn \c_kal_month_lengths_clist {
82 31,28,31,30,31,30,31,31,30,31,30,31,31,31
83}
84\clist_new:N \c_kal_month_ides_clist
85\clist_set:Nn \c_kal_month_ides_clist {
86 13,13,15,13,15,13,15,13,13,15,13,13,15,13
87}
88\cs_new:Nn \kal_period:n {
89 \bool_if:NT \l_kal_periods_bool {.}
90}
91\cs_new:Npn \kal_abbr:nn #1#2 {
92 \bool_if:NTF \l_kal_abbreviate_bool {#2 \kal_period:n{}} {#1}
93}
94\cs_new:Npn \kal_month:nn #1#2 {
95 \kal_abbr:nn
96 { \clist_item:Nn {#1} {#2} }
97 { \clist_item:Nn \c_kal_month_abbr_clist {#2} }
98}
99\cs_new:Npn \kal_ante_diem:nn #1#2 {
100 \bool_if:nTF {\l_kal_antediem_bool}
101 {
102 \kal_abbr:nn {ante\ diem} {\KalAbbrFormat{a \kal_period:n{} d}}
103 \ \int_compare:nNnTF {#2} = {1}
104 { \clist_item:Nn \c_kal_day_acc_clist {#1} }
105 { #1 }
106 }
107 {
108 \int_compare:nNnTF {#2} = {1}
109 { \clist_item:Nn \c_kal_day_abl_clist {#1} }
110 { #1 }
111 }
112}
113\cs_new:Npn \kal_day:n #1 {
114 \int_compare:nNnTF {#1} = {2}
115 { \kal_abbr:nn {pridie} {prid} }
116 {
117 \str_case_e:nnF { \l_kal_dayfmt_tl }
118 {
119 { latin } { \kal_ante_diem:nn {#1} {1} }
120 { roman } { \kal_ante_diem:nn {\KalDayFormat{
121 \int_to_roman:n {#1}}} {0} }
122 { arabic } { \kal_ante_diem:nn {\int_eval:n {#1}} {0} }
123 }
124 { \kal_ante_diem:nn {\KalDayFormat{\int_to_roman:n {#1}}} {0} }
125 }
126}
127\cs_new:Npn \kal_bissextum_day:n #1 {
128 \int_compare:nNnTF {#1} < {24}
129 { \kal_day:n { \l_kal_month_length_int - #1 + 1 } }
130 {
131 \int_compare:nNnTF {#1} > {24}
132 { \kal_day:n { \l_kal_month_length_int - #1 + 2 } }
133 {
134 \str_case_e:nnF { \l_kal_dayfmt_tl }
135 {
136 { latin } { \kal_ante_diem:nn {20} {1} }
137 { roman } { \kal_ante_diem:nn {bis\ \KalDayFormat{vi} } {0} }
138 { arabic } { \kal_ante_diem:nn {bis\ \KalDayFormat{6} } {0} }
139 }
140 { \kal_ante_diem:nn {bis\ \KalDayFormat{vi} } {0} }
141 }
142 }
143}
144\cs_new:Npn \kal_year:n #1 {
145 \KalYearFormat{
146 \str_case_e:nnF { \l_kal_yearfmt_tl }
147 {
148 { roman } { \int_to_roman:n {#1} }
149 { arabic } { \int_eval:n {#1} }
150 }
151 { \int_to_roman:n {#1} }
152 }
153}
154\int_new:N \l_kal_month_idx_int
155\int_new:N \l_kal_month_length_int
156\int_new:N \l_kal_month_ides_int
157\cs_new:Npn \kal_date:nnn #1#2#3 {
158 \bool_if:nTF {\l_kal_oldmonths_bool}
159 {
160 \int_case:nnF {#2}
161 {
162 {7} { \int_set:Nn \l_kal_month_idx_int {13} }
163 {8} { \int_set:Nn \l_kal_month_idx_int {14} }
164 }
165 { \int_set:Nn \l_kal_month_idx_int {#2} }
166 }
167 { \int_set:Nn \l_kal_month_idx_int {#2} }
168 \int_compare:nNnTF {\l_kal_month_idx_int} = {2}
169 {
170 \int_compare:nNnTF { \int_mod:nn {#1} {4} } = {0}
171 {
172 \bool_if:nTF
173 {
174 \l_kal_julian_bool ||
175 \int_compare_p:n { \int_mod:nn {#1} {100} != 0 }
176 }
177 { \int_set:Nn \l_kal_month_length_int {29} }
178 {
179 \int_compare:nNnTF { \int_mod:nn {#1} {400} } = {0}
180 { \int_set:Nn \l_kal_month_length_int {29} }
181 { \int_set:Nn \l_kal_month_length_int {28} }
182 }
183 }
184 { \int_set:Nn \l_kal_month_length_int {28} }
185 }
186 {
187 \int_set:Nn \l_kal_month_length_int
188 { \clist_item:Nn \c_kal_month_lengths_clist {\l_kal_month_idx_int} }
189 }
190 \int_set:Nn \l_kal_month_ides_int
191 { \clist_item:Nn \c_kal_month_ides_clist {\l_kal_month_idx_int} }
192 \int_case:nnTF {#3}
193 {
194 { 1 } { \kal_abbr:nn {Kalendis} {Kal} }
195 { \l_kal_month_ides_int - 8 } { \kal_abbr:nn {Nonis} {Non} }
196 { \l_kal_month_ides_int } { \kal_abbr:nn {Idibus} {Id} }
197 }
198 { \ \kal_month:nn {\c_kal_month_abl_clist} {\l_kal_month_idx_int} }
199 {
200 \int_compare:nNnTF {#3} < { \l_kal_month_ides_int - 8 }
201 {
202 \kal_day:n { \l_kal_month_ides_int - #3 - 7 }
203 \ \kal_abbr:nn {Nonas} {Non}
204 \ \kal_month:nn {\c_kal_month_acc_clist} {\l_kal_month_idx_int}
205 }
206 {
207 \int_compare:nNnTF {#3} < {\l_kal_month_ides_int}
208 {
209 \kal_day:n { \l_kal_month_ides_int - #3 + 1 }
210 \ \kal_abbr:nn {Idus} {Id}
211 \ \kal_month:nn {\c_kal_month_acc_clist} {\l_kal_month_idx_int}
212 }
213 {
214 \bool_if:nTF
215 {
216 \int_compare_p:nNn {\l_kal_month_idx_int} = {2} &&
217 \l_kal_bissextum_bool
218 }
219 { \kal_bissextum_day:n {#3} }
220 {
221 \kal_day:n { \l_kal_month_length_int - #3 + 2 }
222 }
223 \ \kal_abbr:nn {Kalendas} {Kal}
224 \ \int_compare:nNnTF {\l_kal_month_idx_int} = {12}
225 { \kal_month:nn {\c_kal_month_acc_clist} {1} }
226 {
227 \kal_month:nn {\c_kal_month_acc_clist}
228 {\l_kal_month_idx_int + 1}
229 }
230 }
231 }
232 }
233 \str_case_e:nn { \l_kal_era_tl }
234 {
235 { auc } {
236 \ \KalYearFormat{
237 \int_compare:nNnTF {#1} < {0}
238 { \kal_year:n { #1 + 754 } }
239 { \kal_year:n { #1 + 753 } }
240 }
241 \ \kal_abbr:nn {ab\ urbe\ condita}
242 {\KalAbbrFormat{a \kal_period:n{} u \kal_period:n{} c}}
243 }
244 { ad } {
245 \int_compare:nNnTF {#1} < {0}
246 {
247 \ \KalYearFormat{\kal_year:n {\int_abs:n {#1}}}
248 \ \kal_abbr:nn {ante\ Christum}
249 {\KalAbbrFormat{a \kal_period:n{} c}}
250 }
251 {
252 \ \kal_abbr:nn {anno\ Domini}
253 {\KalAbbrFormat{a \kal_period:n{} d}}
254 \ \KalYearFormat{\kal_year:n {#1}}
255 }
256 }
257 { adshort } {
258 \int_compare:nNnTF {#1} < {0}
259 {
260 \ \KalYearFormat{\kal_year:n {\int_abs:n {#1}}}
261 \ \kal_abbr:nn {ante\ Christum}
262 {\KalAbbrFormat{a \kal_period:n{} c}}
263 }
264 {
265 \ \kal_abbr:nn {anno} {\KalAbbrFormat{a}}
266 \ \KalYearFormat{\kal_year:n {#1}}
267 }
268 }
269 { secular } {
270 \int_compare:nNnTF {#1} < {0}
271 {
272 \ \KalYearFormat{\kal_year:n {\int_abs:n {#1}}}
273 \ \kal_abbr:nn {ante\ saeculum\ commune}
274 {\KalAbbrFormat{a \kal_period:n{} s \kal_period:n{} c}}
275 }
276 {
277 \ \kal_abbr:nn {saeculo\ communi}
278 {\KalAbbrFormat{s \kal_period:n{} c}}
279 \ \KalYearFormat{\kal_year:n {#1}}
280 }
281 }
282 }
283}
284\int_new:N \l_kal_date_year_int
285\int_new:N \l_kal_date_month_int
286\int_new:N \l_kal_date_day_int
287\seq_new:N \l_kal_date_split_seq
288\int_new:N \l_kal_date_idx_int
289\cs_new:Npn \kal_date_string:nnn #1#2#3 {
290 \seq_set_split:Nnn \l_kal_date_split_seq {#2} {#3}
291 \int_set:Nn \l_kal_date_idx_int {1}
292 \int_do_until:nNnn {\l_kal_date_idx_int} = {4}
293 {
294 \str_case_e:nn {\tl_item:nn {#1} {\l_kal_date_idx_int}}
295 {
296 { Y } { \int_gset:Nn \l_kal_date_year_int
297 { \seq_item:Nn \l_kal_date_split_seq {\l_kal_date_idx_int} } }
298 { M } { \int_gset:Nn \l_kal_date_month_int
299 { \seq_item:Nn \l_kal_date_split_seq {\l_kal_date_idx_int} } }
300 { D } { \int_gset:Nn \l_kal_date_day_int
301 { \seq_item:Nn \l_kal_date_split_seq {\l_kal_date_idx_int} } }
302 }
303 \int_incr:N \l_kal_date_idx_int
304 }
305 \kal_date:nnn {\l_kal_date_year_int}
306 {\l_kal_date_month_int}
307 {\l_kal_date_day_int}
308}
309\cs_generate_variant:Nn \kal_date_string:nnn { nno }
310\int_new:N \l_kal_weekday_idx_int
311\int_new:N \l_kal_weekday_month_int
312\int_new:N \l_kal_weekday_year_int
313\int_new:N \l_kal_weekday_century_int
314\cs_new:Npn \kal_weekday:nnn #1#2#3 {
315 \int_compare:nNnTF {#2} < {3}
316 { \int_set:Nn \l_kal_weekday_month_int { #2 + 13 } }
317 { \int_set:Nn \l_kal_weekday_month_int { #2 + 1 } }
318 \int_set:Nn \l_kal_weekday_year_int { \int_mod:nn {#1} {100} }
319 \int_set:Nn \l_kal_weekday_century_int { \fp_eval:n { floor(#1 / 100) } }
320 \int_set:Nn \l_kal_weekday_idx_int {#3}
321 \int_add:Nn \l_kal_weekday_idx_int
322 { \fp_eval:n { floor(13 * \l_kal_weekday_month_int / 5) } }
323 \int_add:Nn \l_kal_weekday_idx_int { \l_kal_weekday_year_int }
324 \int_add:Nn \l_kal_weekday_idx_int
325 { \fp_eval:n { floor(\l_kal_weekday_year_int / 4) } }
326 \bool_if:nTF {\l_kal_julian_bool}
327 { \int_add:Nn \l_kal_weekday_idx_int { 5 + 6 * \l_kal_weekday_century_int } }
328 {
329 \int_add:Nn \l_kal_weekday_idx_int { \fp_eval:n
330 { 5 * \l_kal_weekday_century_int + floor(\l_kal_weekday_century_int / 4) }
331 }
332 }
333 \int_set:Nn \l_kal_weekday_idx_int { \int_mod:nn {\l_kal_weekday_idx_int} {7} }
334 \int_incr:N \l_kal_weekday_idx_int
335 \kal_abbr:nn
336 { \clist_item:Nn \c_kal_weekday_gen_clist { \l_kal_weekday_idx_int } }
337 { \clist_item:Nn \c_kal_weekday_abbr_clist { \l_kal_weekday_idx_int } }
338}
339\DeclareDocumentCommand{\KalDate}{o m m m}
340 {
341 \IfValueTF{#1}
342 {
343 \group_begin:
344 \keys_set:nn {kalendarium} {#1}
345 \kal_date:nnn {#2} {#3} {#4}
346 \group_end:
347 }
348 { \kal_date:nnn {#2} {#3} {#4} }
349 }
350\DeclareDocumentCommand{\KalDateStr}{o m m m}
351 {
352 \IfValueTF{#1}
353 {
354 \group_begin:
355 \keys_set:nn {kalendarium} {#1}
356 \kal_date_string:nno {#2} {#3} {#4}
357 \group_end:
358 }
359 { \kal_date_string:nno {#2} {#3} {#4} }
360 }
361\DeclareDocumentCommand{\KalToday}{o}
362 {
363 \IfValueTF{#1}
364 {
365 \group_begin:
366 \keys_set:nn {kalendarium} {#1}
367 \kal_date:nnn {\the\year} {\the\month} {\the\day}
368 \group_end:
369 }
370 { \kal_date:nnn {\the\year} {\the\month} {\the\day} }
371 }
372\DeclareDocumentCommand{\KalWeekday}{o m m m}
373 {
374 \IfValueTF{#1}
375 {
376 \group_begin:
377 \keys_set:nn {kalendarium} {#1}
378 \kal_weekday:nnn {#2} {#3} {#4}
379 \group_end:
380 }
381 { \kal_weekday:nnn {#2} {#3} {#4} }
382 }
383\ExplSyntaxOff
384\newcommand{\KalAbbrFormat}[1]{\textsc{#1}}
385\newcommand{\KalDayFormat}[1]{\MakeUppercase{#1}}
386\newcommand{\KalYearFormat}[1]{\MakeUppercase{#1}}
387%%
388%% Copyright (C) 2018 by Andrew Smith <aws@awsmith.us>
389%%
390%% This work may be distributed and/or modified under the
391%% conditions of the LaTeX Project Public License (LPPL), either
392%% version 1.3c of this license or (at your option) any later
393%% version. The latest version of this license is in the file:
394%%
395%% http://www.latex-project.org/lppl.txt
396%%
397%% This work is "maintained" (as per LPPL maintenance status) by
398%% Andrew Smith.
399%%
400%% This work consists of the file kalendarium.dtx
401%% and the derived files kalendarium.ins,
402%% kalendarium.pdf and
403%% kalendarium.sty.
404%%
405%%
406%% End of file `kalendarium.sty'.
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 16:36:56 +0000