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Module:Infobox/dates
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Documentation for this module may be created at Module:Infobox/dates/doc
1 local getArgs = require('Module:Arguments').getArgs
2 local p = {}
3
4 function p.dates(frame)
5 local returnval;
6 local args = getArgs(frame);
7
8 if table.getn(args) < 2 then
9 if args['1'] == nil and args['2'] == nil then
10 return '';
11 elseif args['1'] == nil then
12 return args['2'];
13 elseif args['2'] == nil then
14 return args['1'];
15 end
16 end
17
18 args['1'] = args['1']:gsub(" "," ");
19 args['2'] = args['2']:gsub(" "," ");
20
21 local dmy = false;
22 local pr1, m1, d1, y1, su1 = string.match(args['1'], '(.-)(%u%a+)%s(%d+),%s(%d+)(.*)');
23 local pr2, m2, d2, y2, su2 = string.match(args['2'], '(.-)(%u%a+)%s(%d+),%s(%d+)(.*)');
24 if y1 == nil then
25 dmy = true;
26 pr1, d1, m1, y1, su1 = string.match(args['1'], '(.-)(%d%d?)%s(%a+)%s(%d+)(.*)');
27 pr2, d2, m2, y2, su2 = string.match(args['2'], '(.-)(%d%d?)%s(%a+)%s(%d+)(.*)');
28 end
29
30 local dash = ' – ';
31 if y1 ~= nil and y2 ~= nil then
32 su1 = su1 or '';
33 su2 = su2 or '';
34
35 local MONTHS = {January=1, February=2, March=3, April=4, May=5, June=6, July=7, August=8, September=9, October=10, November=11, December=12};
36 local diff = os.time({year=y2,month=MONTHS[m2],day=d2,hour=0,min=0,sec=0})-os.time({year=y1,month=MONTHS[m1],day=d1,hour=0,min=0,sec=0});
37
38 if diff < 0 then
39 returnval = 'Invalid date range';
40 else
41 if y1 == y2 then
42 if dmy == false then
43 returnval = pr1..m1..' '..d1..su1..dash..pr2..m2..' '..d2..', '..y2..su2;
44 else
45 returnval = pr1..d1..' '..m1..su1..dash..pr2..d2..' '..m2..' '..y2..su2;
46 end
47 else
48 if dmy == false then
49 returnval = pr1..m1..' '..d1..', '..y1..su1..dash..pr2..m2..' '..d2..', '..y2..su2;
50 else
51 returnval = pr1..d1..' '..m1..' '..y1..su1..dash..pr2..d2..' '..m2..' '..y2..su2;
52 end
53 end
54 end
55 else
56 returnval = args['1']..dash..args['2'];
57 end
58
59 return returnval;
60 end
61
62 return p