Modul:Age: Unterschied zwischen den Versionen
KKeine Bearbeitungszusammenfassung |
(update from Module:Age/sandbox: date handling moved to Module:Date, many more features) |
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Zeile 1: | Zeile 1: | ||
-- | -- Implement various "age of" and other date-related templates. | ||
local | local _Date, _current_date | ||
local function get_exports(frame) | |||
-- Return objects exported from the date module or its sandbox. | |||
if not _Date then | |||
local sandbox = frame:getTitle():find('sandbox', 1, true) and '/sandbox' or '' | |||
local datemod = require('Module:Date' .. sandbox) | |||
_Date = datemod._Date | |||
_current_date = datemod._current | |||
end | |||
return _Date, _current_date | |||
end | |||
local function | local function collection() | ||
-- Return a table to hold items. | |||
return { | |||
n = 0, | |||
add = function (self, item) | |||
self.n = self.n + 1 | |||
self[self.n] = item | |||
end, | |||
join = function (self, sep) | |||
return table.concat(self, sep) | |||
end, | |||
} | |||
end | end | ||
local function strip_to_nil(text) | local function strip_to_nil(text) | ||
-- If text is a string, return its trimmed content, or nil if empty. | |||
-- Otherwise return text (which may, for example, be nil). | |||
if type(text) == 'string' then | |||
text = text:match('(%S.-)%s*$') | |||
end | |||
return text | |||
end | end | ||
local function | local function yes(parameter) | ||
-- Return true if parameter should be interpreted as "yes". | |||
-- Do not want to accept mixed upper/lowercase unless done by current templates. | |||
-- Need to accept "on" because "round=on" is wanted. | |||
return ({ y = true, yes = true, on = true })[parameter] | |||
end | end | ||
local function | local function message(msg, nocat) | ||
-- Return formatted message text for an error. | |||
-- Can append "#FormattingError" to URL of a page with a problem to find it. | |||
local anchor = '<span id="FormattingError" />' | |||
local category | |||
if not nocat and mw.title.getCurrentTitle():inNamespaces(0, 10) then | |||
-- Category only in namespaces: 0=article, 10=template. | |||
category = '[[Category:Age error]]' | |||
else | |||
category = '' | |||
end | |||
return anchor .. | |||
'<strong class="error">Error: ' .. | |||
mw.text.nowiki(msg) .. | |||
'</strong>' .. | |||
category | |||
end | end | ||
-- | local function formatnumber(number) | ||
local | -- Return the given number formatted with commas as group separators, | ||
-- given that the number is an integer. | |||
local numstr = tostring(number) | |||
local length = #numstr | |||
local places = collection() | |||
local pos = 0 | |||
repeat | |||
places:add(pos) | |||
pos = pos + 3 | |||
until pos >= length | |||
local | places:add(length) | ||
local groups = collection() | |||
for i = places.n, 2, -1 do | |||
local p1 = length - places[i] + 1 | |||
local p2 = length - places[i - 1] | |||
groups:add(numstr:sub(p1, p2)) | |||
end | |||
return groups:join(',') | |||
end | end | ||
local function | local function make_sort(value, sortable) | ||
-- Return a sort key in a span if specified. | |||
-- Assume value is a valid number which has not overflowed. | |||
if sortable == 'sortable_on' or sortable == 'sortable_debug' then | |||
local sortkey | |||
if value == 0 then | |||
sortkey = '5000000000000000000' | |||
else | |||
local mag = math.floor(math.log10(math.abs(value)) + 1e-14) | |||
local prefix | |||
if value > 0 then | |||
prefix = 7000 + mag | |||
else | |||
prefix = 2999 - mag | |||
value = value + 10^(mag+1) | |||
end | |||
sortkey = string.format('%d', prefix) .. string.format('%015.0f', math.floor(value * 10^(14-mag))) | |||
end | |||
local lhs = sortable == 'sortable_debug' and | |||
'<span style="border:1px solid;display:inline;" class="sortkey">' or | |||
'<span style="display:none" class="sortkey">' | |||
return lhs .. sortkey .. '♠</span>' | |||
end | |||
end | end | ||
local | local translate_parameters = { | ||
abbr = { | |||
off = 'abbr_off', | |||
on = 'abbr_on', | |||
}, | |||
disp = { | |||
age = 'disp_age', | |||
raw = 'disp_raw', | |||
}, | |||
format = { | |||
raw = 'format_raw', | |||
commas = 'format_commas', | |||
}, | |||
round = { | |||
on = 'on', | |||
yes = 'on', | |||
months = 'ym', | |||
weeks = 'ymw', | |||
days = 'ymd', | |||
hours = 'ymdh', | |||
}, | |||
sep = { | |||
comma = 'sep_comma', | |||
[','] = 'sep_comma', | |||
serialcomma = 'sep_serialcomma', | |||
space = 'sep_space', | |||
}, | |||
show = { | |||
hide = { id = 'hide' }, | |||
y = { 'y', id = 'y' }, | |||
ym = { 'y', 'm', id = 'ym' }, | |||
ymd = { 'y', 'm', 'd', id = 'ymd' }, | |||
ymw = { 'y', 'm', 'w', id = 'ymw' }, | |||
ymwd = { 'y', 'm', 'w', 'd', id = 'ymwd' }, | |||
yd = { 'y', 'd', id = 'yd', keepzero = true }, | |||
m = { 'm', id = 'm' }, | |||
md = { 'm', 'd', id = 'md' }, | |||
w = { 'w', id = 'w' }, | |||
wd = { 'w', 'd', id = 'wd' }, | |||
d = { 'd', id = 'd' }, | |||
dh = { 'd', 'H', id = 'dh' }, | |||
dhm = { 'd', 'H', 'M', id = 'dhm' }, | |||
ymdh = { 'y', 'm', 'd', 'H', id = 'ymdh' }, | |||
ymdhm = { 'y', 'm', 'd', 'H', 'M', id = 'ymdhm' }, | |||
ymwdh = { 'y', 'm', 'w', 'd', 'H', id = 'ymwdh' }, | |||
ymwdhm = { 'y', 'm', 'w', 'd', 'H', 'M', id = 'ymwdhm' }, | |||
}, | |||
sortable = { | |||
off = false, | |||
on = 'sortable_on', | |||
debug = 'sortable_debug', | |||
}, | |||
} | } | ||
function | local function date_extract(frame) | ||
-- Return part of a date after performing an optional operation. | |||
local Date = get_exports(frame) | |||
local args = frame:getParent().args | |||
local parms = {} | |||
for i, v in ipairs(args) do | |||
parms[i] = v | |||
end | |||
if yes(args.fix) then | |||
table.insert(parms, 'fix') | |||
end | |||
if yes(args.partial) then | |||
table.insert(parms, 'partial') | |||
end | |||
local date = Date(unpack(parms)) | |||
if not date then | |||
return message('Need valid date') | |||
end | |||
local add = strip_to_nil(args.add) | |||
if add then | |||
for item in add:gmatch('%S+') do | |||
date = date + item | |||
if not date then | |||
return message('Cannot add "' .. item .. '"') | |||
end | |||
end | |||
end | |||
local prefix, result | |||
local sortable = translate_parameters.sortable[args.sortable] | |||
if sortable then | |||
local value = (date.partial and date.partial.first or date).jdz | |||
prefix = make_sort(value, sortable) | |||
end | |||
local show = strip_to_nil(args.show) or 'dmy' | |||
if show ~= 'hide' then | |||
result = date[show] | |||
if result == nil then | |||
result = date:text(show) | |||
elseif type(result) == 'boolean' then | |||
result = result and '1' or '0' | |||
else | |||
result = tostring(result) | |||
end | |||
end | |||
return (prefix or '') .. (result or '') | |||
end | end | ||
function | local function make_text(values, components, names, options) | ||
-- Return wikitext representing an age or duration. | |||
local text = collection() | |||
local count = #values | |||
local sep = names.sep or '' | |||
for i, v in ipairs(values) do | |||
-- v is a number (say 4 for 4 years), or a table ({4,5} for 4 or 5 years). | |||
local islist = type(v) == 'table' | |||
if (islist or v > 0) or (text.n == 0 and i == count) or (text.n > 0 and components.keepzero) then | |||
local fmt, vstr | |||
if i == 1 and options.format == 'format_commas' then | |||
-- Numbers after the first should be small and not need formatting. | |||
fmt = formatnumber | |||
else | |||
fmt = tostring | |||
end | |||
if islist then | |||
local join = options.range == 'dash' and '–' or ' or ' | |||
vstr = fmt(v[1]) .. join .. fmt(v[2]) | |||
else | |||
vstr = fmt(v) | |||
end | |||
local name = names[components[i]] | |||
if name then | |||
local plural = names.plural | |||
if not plural or (islist and v[2] or v) == 1 then | |||
plural = '' | |||
end | |||
text:add(vstr .. sep .. name .. plural) | |||
else | |||
text:add(vstr) | |||
end | |||
end | |||
end | |||
local first, last | |||
if options.join == 'sep_space' then | |||
first = ' ' | |||
last = ' ' | |||
elseif options.join == 'sep_comma' then | |||
first = ', ' | |||
last = ', ' | |||
elseif options.join == 'sep_serialcomma' and text.n > 2 then | |||
first = ', ' | |||
last = ', and ' | |||
else | |||
first = ', ' | |||
last = ' and ' | |||
end | |||
for i, v in ipairs(text) do | |||
if i < text.n then | |||
text[i] = v .. (i + 1 < text.n and first or last) | |||
end | |||
end | |||
local sign = '' | |||
if options.isnegative then | |||
-- Do not display negative zero. | |||
if text.n > 1 or (text.n == 1 and text[1]:sub(1, 1) ~= '0' ) then | |||
if options.format == 'format_raw' then | |||
sign = '-' -- plain hyphen so result can be used in a calculation | |||
else | |||
sign = '−' -- Unicode U+2212 MINUS SIGN | |||
end | |||
end | |||
end | |||
return | |||
(options.prefix or '') .. | |||
sign .. | |||
text:join() .. | |||
(options.suffix or '') | |||
end | end | ||
function | local function date_difference(parms) | ||
-- Return a formatted date difference using the given parameters | |||
-- which have been validated. | |||
local names = { | |||
abbr_off = { | |||
plural = 's', | |||
sep = ' ', | |||
y = 'year', | |||
m = 'month', | |||
w = 'week', | |||
d = 'day', | |||
H = 'hour', | |||
M = 'minute', | |||
}, | |||
abbr_on = { | |||
y = 'y', | |||
m = 'm', | |||
w = 'w', | |||
d = 'd', | |||
H = 'h', | |||
M = 'm', | |||
}, | |||
abbr_infant = { -- for {{age for infant}} | |||
plural = 's', | |||
sep = ' ', | |||
y = 'yr', | |||
m = 'mo', | |||
w = 'wk', | |||
d = 'day', | |||
H = 'hr', | |||
M = 'min', | |||
}, | |||
abbr_raw = {}, | |||
} | |||
local diff = parms.diff -- must be a valid date difference | |||
local show = parms.show -- may be nil; default is set below | |||
local abbr = parms.abbr or 'abbr_off' | |||
local default_join | |||
if abbr ~= 'abbr_off' then | |||
default_join = 'sep_space' | |||
end | |||
if not show then | |||
show = 'ymd' | |||
if parms.disp == 'disp_age' then | |||
if diff.years < 3 then | |||
default_join = 'sep_space' | |||
if diff.years >= 1 then | |||
show = 'ym' | |||
else | |||
show = 'md' | |||
end | |||
else | |||
show = 'y' | |||
end | |||
end | |||
end | |||
if type(show) ~= 'table' then | |||
show = translate_parameters.show[show] | |||
end | |||
if parms.disp == 'disp_raw' then | |||
default_join = 'sep_space' | |||
abbr = 'abbr_raw' | |||
elseif parms.want_sc then | |||
default_join = 'sep_serialcomma' | |||
end | |||
local diff_options = { | |||
round = parms.round, | |||
duration = parms.want_duration, | |||
range = parms.range and true or nil, | |||
} | |||
local prefix | |||
if parms.sortable then | |||
local value = diff.age_days + (parms.want_duration and 1 or 0) -- days and fraction of a day | |||
if diff.isnegative then | |||
value = -value | |||
end | |||
prefix = make_sort(value, parms.sortable) | |||
end | |||
local text_options = { | |||
prefix = prefix, | |||
suffix = parms.suffix, -- not currently used | |||
format = parms.format, | |||
join = parms.sep or default_join, | |||
isnegative = diff.isnegative, | |||
range = parms.range, | |||
} | |||
if show.id == 'hide' then | |||
return prefix or '' | |||
end | |||
local values = { diff:age(show.id, diff_options) } | |||
return make_text(values, show, names[abbr], text_options) | |||
end | end | ||
local | local function get_dates(frame, getopt) | ||
-- Parse template parameters and return one of: | |||
-- * date (a date table, if single) | |||
-- * date1, date2 (two date tables, if not single) | |||
-- * text (a string error message) | |||
-- A missing date is replaced with the current date. | |||
-- If want_mixture is true, a missing date component is replaced | |||
-- from the current date, so can get a bizarre mixture of | |||
-- specified/current y/m/d as has been done by some "age" templates. | |||
-- Some results may be placed in table getopt. | |||
local Date, current_date = get_exports(frame) | |||
getopt = getopt or {} | |||
local fix = getopt.fix and 'fix' or '' | |||
local partial = getopt.range and 'partial' or '' | |||
local args = frame:getParent().args | |||
local fields = {} | |||
local is_named = args.year or args.year1 or args.year2 or | |||
args.month or args.month1 or args.month2 or | |||
args.day or args.day1 or args.day2 | |||
if is_named then | |||
fields[1] = args.year1 or args.year | |||
fields[2] = args.month1 or args.month | |||
fields[3] = args.day1 or args.day | |||
fields[4] = args.year2 | |||
fields[5] = args.month2 | |||
fields[6] = args.day2 | |||
else | |||
for i = 1, 6 do | |||
fields[i] = args[i] | |||
end | |||
end | |||
local imax = 0 | |||
for i = 1, 6 do | |||
fields[i] = strip_to_nil(fields[i]) | |||
if fields[i] then | |||
imax = i | |||
end | |||
end | |||
local single = getopt.single | |||
local dates = {} | |||
if is_named or imax > 2 then | |||
local nr_dates = single and 1 or 2 | |||
if getopt.want_mixture then | |||
-- Cannot be partial since empty fields are set from current. | |||
local components = { 'year', 'month', 'day' } | |||
for i = 1, nr_dates * 3 do | |||
fields[i] = fields[i] or current_date[components[i > 3 and i - 3 or i]] | |||
end | |||
for i = 1, nr_dates do | |||
local index = i == 1 and 1 or 4 | |||
dates[i] = Date(fields[index], fields[index+1], fields[index+2]) | |||
end | |||
else | |||
for i = 1, nr_dates do | |||
local index = i == 1 and 1 or 4 | |||
local y, m, d = fields[index], fields[index+1], fields[index+2] | |||
if (partial and y) or (y and m and d) then | |||
dates[i] = Date(fix, partial, y, m, d) | |||
elseif not (y or m or d) then | |||
dates[i] = Date('currentdate') | |||
end | |||
end | |||
end | |||
else | |||
getopt.textdates = true | |||
dates[1] = Date(fix, partial, fields[1] or 'currentdate') | |||
if not single then | |||
dates[2] = Date(fix, partial, fields[2] or 'currentdate') | |||
end | |||
end | |||
if not dates[1] then | |||
return message('Need valid year, month, day') | |||
end | |||
if single then | |||
return dates[1] | |||
end | |||
if not dates[2] then | |||
return message('Second date should be year, month, day') | |||
end | |||
return dates[1], dates[2] | |||
end | end | ||
function | local function age_generic(frame) | ||
-- Return the result required by the specified template. | |||
-- Can use sortable=x where x = on/off/debug in any supported template. | |||
-- Some templates default to sortable=on but can be overridden with sortable=off. | |||
local name = frame.args.template | |||
if not name then | |||
return message('The template invoking this must have "|template=x" where x is the wanted operation') | |||
end | |||
local args = frame:getParent().args | |||
local specs = { | |||
age_days = { -- {{age in days}} | |||
show = 'd', | |||
disp = 'disp_raw', | |||
}, | |||
age_days_nts = { -- {{age in days nts}} | |||
show = 'd', | |||
disp = 'disp_raw', | |||
format = 'format_commas', | |||
sortable = 'on', | |||
}, | |||
duration_days = { -- {{duration in days}} | |||
show = 'd', | |||
disp = 'disp_raw', | |||
duration = true, | |||
}, | |||
duration_days_nts = { -- {{duration in days nts}} | |||
show = 'd', | |||
disp = 'disp_raw', | |||
format = 'format_commas', | |||
sortable = 'on', | |||
duration = true, | |||
}, | |||
age_full_years = { -- {{age}} | |||
show = 'y', | |||
abbr = 'abbr_raw', | |||
}, | |||
age_full_years_nts = { -- {{age nts}} | |||
show = 'y', | |||
abbr = 'abbr_raw', | |||
format = 'format_commas', | |||
sortable = 'on', | |||
}, | |||
age_in_years = { -- {{age in years}} | |||
show = 'y', | |||
abbr = 'abbr_raw', | |||
negative = 'error', | |||
range = 'dash', | |||
}, | |||
age_in_years_nts = { -- {{age in years nts}} | |||
show = 'y', | |||
abbr = 'abbr_raw', | |||
negative = 'error', | |||
range = 'dash', | |||
format = 'format_commas', | |||
sortable = 'on', | |||
}, | |||
age_infant = { -- {{age for infant}} | |||
-- Do not set show because special processing is done later. | |||
abbr = yes(args.abbr) and 'abbr_infant' or 'abbr_off', | |||
disp = 'disp_age', | |||
sep = 'sep_space', | |||
sortable = 'on', | |||
}, | |||
age_m = { -- {{age in months}} | |||
show = 'm', | |||
disp = 'disp_raw', | |||
}, | |||
age_w = { -- {{age in weeks}} | |||
show = 'w', | |||
disp = 'disp_raw', | |||
}, | |||
age_wd = { -- {{age in weeks and days}} | |||
show = 'wd', | |||
}, | |||
age_yd = { -- {{age in years and days}} | |||
show = 'yd', | |||
sep = args.sep ~= 'and' and 'sep_comma' or nil, | |||
sortable = 'on', | |||
}, | |||
age_ym = { -- {{age in years and months}} | |||
show = 'ym', | |||
sep = 'sep_comma', | |||
}, | |||
age_ymd = { -- {{age in years, months and days}} | |||
show = 'ymd', | |||
range = true, | |||
}, | |||
age_ymwd = { -- {{age in years, months, weeks and days}} | |||
show = 'ymwd', | |||
want_mixture = true, | |||
}, | |||
} | |||
local spec = specs[name] | |||
if not spec then | |||
return message('The specified template name is not valid') | |||
end | |||
if name == 'age_days' then | |||
local su = strip_to_nil(args['show unit']) | |||
if su then | |||
if su == 'abbr' or su == 'full' then | |||
spec.disp = nil | |||
spec.abbr = su == 'abbr' and 'abbr_on' or nil | |||
end | |||
end | |||
end | |||
local range = spec.range or yes(args.range) or (args.range == 'dash' and 'dash' or nil) | |||
local getopt = { | |||
fix = yes(args.fix), | |||
range = range, | |||
want_mixture = spec.want_mixture, | |||
} | |||
local date1, date2 = get_dates(frame, getopt) | |||
if type(date1) == 'string' then | |||
return date1 | |||
end | |||
local format = strip_to_nil(args.format) | |||
if format then | |||
format = 'format_' .. format | |||
elseif name == 'age_days' and getopt.textdates then | |||
format = 'format_commas' | |||
end | |||
local parms = { | |||
diff = date2 - date1, | |||
want_duration = spec.duration or yes(args.duration), | |||
range = range, | |||
want_sc = yes(args.sc), | |||
show = args.show == 'hide' and 'hide' or spec.show, | |||
abbr = spec.abbr, | |||
disp = spec.disp, | |||
format = format or spec.format, | |||
round = yes(args.round), | |||
sep = spec.sep, | |||
sortable = translate_parameters.sortable[args.sortable or spec.sortable], | |||
} | |||
if (spec.negative or frame.args.negative) == 'error' and parms.diff.isnegative then | |||
return message('The second date should not be before the first date') | |||
end | |||
return date_difference(parms) | |||
end | end | ||
local function | local function date_to_gsd(frame) | ||
-- This implements {{gregorian serial date}}. | |||
-- Return Gregorian serial date of the given date, or the current date. | |||
-- The returned value is negative for dates before 1 January 1 AD | |||
-- despite the fact that GSD is not defined for such dates. | |||
local date = get_dates(frame, { want_mixture=true, single=true }) | |||
if type(date) == 'string' then | |||
return date | |||
end | |||
return tostring(date.gsd) | |||
end | end | ||
local function | local function jd_to_date(frame) | ||
-- Return formatted date from a Julian date. | |||
-- The result includes a time if the input includes a fraction. | |||
-- The word 'Julian' is accepted for the Julian calendar. | |||
local Date = get_exports(frame) | |||
local args = frame:getParent().args | |||
local date = Date('juliandate', args[1], args[2]) | |||
if date then | |||
return date:text() | |||
end | |||
return message('Need valid Julian date number') | |||
end | end | ||
local function | local function date_to_jd(frame) | ||
-- Return Julian date (a number) from a date which may include a time, | |||
-- or the current date ('currentdate') or current date and time ('currentdatetime'). | |||
-- The word 'Julian' is accepted for the Julian calendar. | |||
local Date = get_exports(frame) | |||
local args = frame:getParent().args | |||
local date = Date(args[1], args[2], args[3], args[4], args[5], args[6], args[7]) | |||
if date then | |||
return tostring(date.jd) | |||
end | |||
return message('Need valid year/month/day or "currentdate"') | |||
end | end | ||
local function | local function time_interval(frame) | ||
-- This implements {{time interval}}. | |||
-- There are two positional arguments: date1, date2. | |||
-- The default for each is the current date and time. | |||
-- Result is date2 - date1 formatted. | |||
local Date = get_exports(frame) | |||
local args = frame:getParent().args | |||
local parms = { | |||
want_duration = yes(args.duration), | |||
range = yes(args.range) or (args.range == 'dash' and 'dash' or nil), | |||
want_sc = yes(args.sc), | |||
} | |||
local fix = yes(args.fix) and 'fix' or '' | |||
local date1 = Date(fix, 'partial', strip_to_nil(args[1]) or 'currentdatetime') | |||
if not date1 then | |||
return message('Invalid start date in first parameter') | |||
end | |||
local date2 = Date(fix, 'partial', strip_to_nil(args[2]) or 'currentdatetime') | |||
if not date2 then | |||
return message('Invalid end date in second parameter') | |||
end | |||
parms.diff = date2 - date1 | |||
for argname, translate in pairs(translate_parameters) do | |||
local parm = strip_to_nil(args[argname]) | |||
if parm then | |||
parm = translate[parm] | |||
if parm == nil then -- test for nil because false is a valid setting | |||
return message('Parameter ' .. argname .. '=' .. args[argname] .. ' is invalid') | |||
end | |||
parms[argname] = parm | |||
end | |||
end | |||
if parms.round then | |||
local round = parms.round | |||
local show = parms.show | |||
if round ~= 'on' then | |||
if show then | |||
if show.id ~= round then | |||
return message('Parameter show=' .. args.show .. ' conflicts with round=' .. args.round) | |||
end | |||
else | |||
parms.show = translate_parameters.show[round] | |||
end | |||
end | |||
parms.round = true | |||
end | |||
return date_difference(parms) | |||
end | end | ||
return { | return { | ||
age_generic = age_generic, -- can emulate several age templates | |||
gsd = date_to_gsd, -- Template:Gregorian_serial_date | |||
extract = date_extract, -- Template:Extract | |||
jd_to_date = jd_to_date, -- Template:? | |||
JULIANDAY = date_to_jd, -- Template:JULIANDAY | |||
time_interval = time_interval, -- Template:Time_interval | |||
} |
Version vom 24. Juni 2016, 02:19 Uhr
Die Dokumentation für dieses Modul kann unter Modul:Age/doc erstellt werden
-- Implement various "age of" and other date-related templates. local _Date, _current_date local function get_exports(frame) -- Return objects exported from the date module or its sandbox. if not _Date then local sandbox = frame:getTitle():find('sandbox', 1, true) and '/sandbox' or '' local datemod = require('Module:Date' .. sandbox) _Date = datemod._Date _current_date = datemod._current end return _Date, _current_date end local function collection() -- Return a table to hold items. return { n = 0, add = function (self, item) self.n = self.n + 1 self[self.n] = item end, join = function (self, sep) return table.concat(self, sep) end, } end local function strip_to_nil(text) -- If text is a string, return its trimmed content, or nil if empty. -- Otherwise return text (which may, for example, be nil). if type(text) == 'string' then text = text:match('(%S.-)%s*$') end return text end local function yes(parameter) -- Return true if parameter should be interpreted as "yes". -- Do not want to accept mixed upper/lowercase unless done by current templates. -- Need to accept "on" because "round=on" is wanted. return ({ y = true, yes = true, on = true })[parameter] end local function message(msg, nocat) -- Return formatted message text for an error. -- Can append "#FormattingError" to URL of a page with a problem to find it. local anchor = '<span id="FormattingError" />' local category if not nocat and mw.title.getCurrentTitle():inNamespaces(0, 10) then -- Category only in namespaces: 0=article, 10=template. category = '[[Category:Age error]]' else category = '' end return anchor .. '<strong class="error">Error: ' .. mw.text.nowiki(msg) .. '</strong>' .. category end local function formatnumber(number) -- Return the given number formatted with commas as group separators, -- given that the number is an integer. local numstr = tostring(number) local length = #numstr local places = collection() local pos = 0 repeat places:add(pos) pos = pos + 3 until pos >= length places:add(length) local groups = collection() for i = places.n, 2, -1 do local p1 = length - places[i] + 1 local p2 = length - places[i - 1] groups:add(numstr:sub(p1, p2)) end return groups:join(',') end local function make_sort(value, sortable) -- Return a sort key in a span if specified. -- Assume value is a valid number which has not overflowed. if sortable == 'sortable_on' or sortable == 'sortable_debug' then local sortkey if value == 0 then sortkey = '5000000000000000000' else local mag = math.floor(math.log10(math.abs(value)) + 1e-14) local prefix if value > 0 then prefix = 7000 + mag else prefix = 2999 - mag value = value + 10^(mag+1) end sortkey = string.format('%d', prefix) .. string.format('%015.0f', math.floor(value * 10^(14-mag))) end local lhs = sortable == 'sortable_debug' and '<span style="border:1px solid;display:inline;" class="sortkey">' or '<span style="display:none" class="sortkey">' return lhs .. sortkey .. '♠</span>' end end local translate_parameters = { abbr = { off = 'abbr_off', on = 'abbr_on', }, disp = { age = 'disp_age', raw = 'disp_raw', }, format = { raw = 'format_raw', commas = 'format_commas', }, round = { on = 'on', yes = 'on', months = 'ym', weeks = 'ymw', days = 'ymd', hours = 'ymdh', }, sep = { comma = 'sep_comma', [','] = 'sep_comma', serialcomma = 'sep_serialcomma', space = 'sep_space', }, show = { hide = { id = 'hide' }, y = { 'y', id = 'y' }, ym = { 'y', 'm', id = 'ym' }, ymd = { 'y', 'm', 'd', id = 'ymd' }, ymw = { 'y', 'm', 'w', id = 'ymw' }, ymwd = { 'y', 'm', 'w', 'd', id = 'ymwd' }, yd = { 'y', 'd', id = 'yd', keepzero = true }, m = { 'm', id = 'm' }, md = { 'm', 'd', id = 'md' }, w = { 'w', id = 'w' }, wd = { 'w', 'd', id = 'wd' }, d = { 'd', id = 'd' }, dh = { 'd', 'H', id = 'dh' }, dhm = { 'd', 'H', 'M', id = 'dhm' }, ymdh = { 'y', 'm', 'd', 'H', id = 'ymdh' }, ymdhm = { 'y', 'm', 'd', 'H', 'M', id = 'ymdhm' }, ymwdh = { 'y', 'm', 'w', 'd', 'H', id = 'ymwdh' }, ymwdhm = { 'y', 'm', 'w', 'd', 'H', 'M', id = 'ymwdhm' }, }, sortable = { off = false, on = 'sortable_on', debug = 'sortable_debug', }, } local function date_extract(frame) -- Return part of a date after performing an optional operation. local Date = get_exports(frame) local args = frame:getParent().args local parms = {} for i, v in ipairs(args) do parms[i] = v end if yes(args.fix) then table.insert(parms, 'fix') end if yes(args.partial) then table.insert(parms, 'partial') end local date = Date(unpack(parms)) if not date then return message('Need valid date') end local add = strip_to_nil(args.add) if add then for item in add:gmatch('%S+') do date = date + item if not date then return message('Cannot add "' .. item .. '"') end end end local prefix, result local sortable = translate_parameters.sortable[args.sortable] if sortable then local value = (date.partial and date.partial.first or date).jdz prefix = make_sort(value, sortable) end local show = strip_to_nil(args.show) or 'dmy' if show ~= 'hide' then result = date[show] if result == nil then result = date:text(show) elseif type(result) == 'boolean' then result = result and '1' or '0' else result = tostring(result) end end return (prefix or '') .. (result or '') end local function make_text(values, components, names, options) -- Return wikitext representing an age or duration. local text = collection() local count = #values local sep = names.sep or '' for i, v in ipairs(values) do -- v is a number (say 4 for 4 years), or a table ({4,5} for 4 or 5 years). local islist = type(v) == 'table' if (islist or v > 0) or (text.n == 0 and i == count) or (text.n > 0 and components.keepzero) then local fmt, vstr if i == 1 and options.format == 'format_commas' then -- Numbers after the first should be small and not need formatting. fmt = formatnumber else fmt = tostring end if islist then local join = options.range == 'dash' and '–' or ' or ' vstr = fmt(v[1]) .. join .. fmt(v[2]) else vstr = fmt(v) end local name = names[components[i]] if name then local plural = names.plural if not plural or (islist and v[2] or v) == 1 then plural = '' end text:add(vstr .. sep .. name .. plural) else text:add(vstr) end end end local first, last if options.join == 'sep_space' then first = ' ' last = ' ' elseif options.join == 'sep_comma' then first = ', ' last = ', ' elseif options.join == 'sep_serialcomma' and text.n > 2 then first = ', ' last = ', and ' else first = ', ' last = ' and ' end for i, v in ipairs(text) do if i < text.n then text[i] = v .. (i + 1 < text.n and first or last) end end local sign = '' if options.isnegative then -- Do not display negative zero. if text.n > 1 or (text.n == 1 and text[1]:sub(1, 1) ~= '0' ) then if options.format == 'format_raw' then sign = '-' -- plain hyphen so result can be used in a calculation else sign = '−' -- Unicode U+2212 MINUS SIGN end end end return (options.prefix or '') .. sign .. text:join() .. (options.suffix or '') end local function date_difference(parms) -- Return a formatted date difference using the given parameters -- which have been validated. local names = { abbr_off = { plural = 's', sep = ' ', y = 'year', m = 'month', w = 'week', d = 'day', H = 'hour', M = 'minute', }, abbr_on = { y = 'y', m = 'm', w = 'w', d = 'd', H = 'h', M = 'm', }, abbr_infant = { -- for {{age for infant}} plural = 's', sep = ' ', y = 'yr', m = 'mo', w = 'wk', d = 'day', H = 'hr', M = 'min', }, abbr_raw = {}, } local diff = parms.diff -- must be a valid date difference local show = parms.show -- may be nil; default is set below local abbr = parms.abbr or 'abbr_off' local default_join if abbr ~= 'abbr_off' then default_join = 'sep_space' end if not show then show = 'ymd' if parms.disp == 'disp_age' then if diff.years < 3 then default_join = 'sep_space' if diff.years >= 1 then show = 'ym' else show = 'md' end else show = 'y' end end end if type(show) ~= 'table' then show = translate_parameters.show[show] end if parms.disp == 'disp_raw' then default_join = 'sep_space' abbr = 'abbr_raw' elseif parms.want_sc then default_join = 'sep_serialcomma' end local diff_options = { round = parms.round, duration = parms.want_duration, range = parms.range and true or nil, } local prefix if parms.sortable then local value = diff.age_days + (parms.want_duration and 1 or 0) -- days and fraction of a day if diff.isnegative then value = -value end prefix = make_sort(value, parms.sortable) end local text_options = { prefix = prefix, suffix = parms.suffix, -- not currently used format = parms.format, join = parms.sep or default_join, isnegative = diff.isnegative, range = parms.range, } if show.id == 'hide' then return prefix or '' end local values = { diff:age(show.id, diff_options) } return make_text(values, show, names[abbr], text_options) end local function get_dates(frame, getopt) -- Parse template parameters and return one of: -- * date (a date table, if single) -- * date1, date2 (two date tables, if not single) -- * text (a string error message) -- A missing date is replaced with the current date. -- If want_mixture is true, a missing date component is replaced -- from the current date, so can get a bizarre mixture of -- specified/current y/m/d as has been done by some "age" templates. -- Some results may be placed in table getopt. local Date, current_date = get_exports(frame) getopt = getopt or {} local fix = getopt.fix and 'fix' or '' local partial = getopt.range and 'partial' or '' local args = frame:getParent().args local fields = {} local is_named = args.year or args.year1 or args.year2 or args.month or args.month1 or args.month2 or args.day or args.day1 or args.day2 if is_named then fields[1] = args.year1 or args.year fields[2] = args.month1 or args.month fields[3] = args.day1 or args.day fields[4] = args.year2 fields[5] = args.month2 fields[6] = args.day2 else for i = 1, 6 do fields[i] = args[i] end end local imax = 0 for i = 1, 6 do fields[i] = strip_to_nil(fields[i]) if fields[i] then imax = i end end local single = getopt.single local dates = {} if is_named or imax > 2 then local nr_dates = single and 1 or 2 if getopt.want_mixture then -- Cannot be partial since empty fields are set from current. local components = { 'year', 'month', 'day' } for i = 1, nr_dates * 3 do fields[i] = fields[i] or current_date[components[i > 3 and i - 3 or i]] end for i = 1, nr_dates do local index = i == 1 and 1 or 4 dates[i] = Date(fields[index], fields[index+1], fields[index+2]) end else for i = 1, nr_dates do local index = i == 1 and 1 or 4 local y, m, d = fields[index], fields[index+1], fields[index+2] if (partial and y) or (y and m and d) then dates[i] = Date(fix, partial, y, m, d) elseif not (y or m or d) then dates[i] = Date('currentdate') end end end else getopt.textdates = true dates[1] = Date(fix, partial, fields[1] or 'currentdate') if not single then dates[2] = Date(fix, partial, fields[2] or 'currentdate') end end if not dates[1] then return message('Need valid year, month, day') end if single then return dates[1] end if not dates[2] then return message('Second date should be year, month, day') end return dates[1], dates[2] end local function age_generic(frame) -- Return the result required by the specified template. -- Can use sortable=x where x = on/off/debug in any supported template. -- Some templates default to sortable=on but can be overridden with sortable=off. local name = frame.args.template if not name then return message('The template invoking this must have "|template=x" where x is the wanted operation') end local args = frame:getParent().args local specs = { age_days = { -- {{age in days}} show = 'd', disp = 'disp_raw', }, age_days_nts = { -- {{age in days nts}} show = 'd', disp = 'disp_raw', format = 'format_commas', sortable = 'on', }, duration_days = { -- {{duration in days}} show = 'd', disp = 'disp_raw', duration = true, }, duration_days_nts = { -- {{duration in days nts}} show = 'd', disp = 'disp_raw', format = 'format_commas', sortable = 'on', duration = true, }, age_full_years = { -- {{age}} show = 'y', abbr = 'abbr_raw', }, age_full_years_nts = { -- {{age nts}} show = 'y', abbr = 'abbr_raw', format = 'format_commas', sortable = 'on', }, age_in_years = { -- {{age in years}} show = 'y', abbr = 'abbr_raw', negative = 'error', range = 'dash', }, age_in_years_nts = { -- {{age in years nts}} show = 'y', abbr = 'abbr_raw', negative = 'error', range = 'dash', format = 'format_commas', sortable = 'on', }, age_infant = { -- {{age for infant}} -- Do not set show because special processing is done later. abbr = yes(args.abbr) and 'abbr_infant' or 'abbr_off', disp = 'disp_age', sep = 'sep_space', sortable = 'on', }, age_m = { -- {{age in months}} show = 'm', disp = 'disp_raw', }, age_w = { -- {{age in weeks}} show = 'w', disp = 'disp_raw', }, age_wd = { -- {{age in weeks and days}} show = 'wd', }, age_yd = { -- {{age in years and days}} show = 'yd', sep = args.sep ~= 'and' and 'sep_comma' or nil, sortable = 'on', }, age_ym = { -- {{age in years and months}} show = 'ym', sep = 'sep_comma', }, age_ymd = { -- {{age in years, months and days}} show = 'ymd', range = true, }, age_ymwd = { -- {{age in years, months, weeks and days}} show = 'ymwd', want_mixture = true, }, } local spec = specs[name] if not spec then return message('The specified template name is not valid') end if name == 'age_days' then local su = strip_to_nil(args['show unit']) if su then if su == 'abbr' or su == 'full' then spec.disp = nil spec.abbr = su == 'abbr' and 'abbr_on' or nil end end end local range = spec.range or yes(args.range) or (args.range == 'dash' and 'dash' or nil) local getopt = { fix = yes(args.fix), range = range, want_mixture = spec.want_mixture, } local date1, date2 = get_dates(frame, getopt) if type(date1) == 'string' then return date1 end local format = strip_to_nil(args.format) if format then format = 'format_' .. format elseif name == 'age_days' and getopt.textdates then format = 'format_commas' end local parms = { diff = date2 - date1, want_duration = spec.duration or yes(args.duration), range = range, want_sc = yes(args.sc), show = args.show == 'hide' and 'hide' or spec.show, abbr = spec.abbr, disp = spec.disp, format = format or spec.format, round = yes(args.round), sep = spec.sep, sortable = translate_parameters.sortable[args.sortable or spec.sortable], } if (spec.negative or frame.args.negative) == 'error' and parms.diff.isnegative then return message('The second date should not be before the first date') end return date_difference(parms) end local function date_to_gsd(frame) -- This implements {{gregorian serial date}}. -- Return Gregorian serial date of the given date, or the current date. -- The returned value is negative for dates before 1 January 1 AD -- despite the fact that GSD is not defined for such dates. local date = get_dates(frame, { want_mixture=true, single=true }) if type(date) == 'string' then return date end return tostring(date.gsd) end local function jd_to_date(frame) -- Return formatted date from a Julian date. -- The result includes a time if the input includes a fraction. -- The word 'Julian' is accepted for the Julian calendar. local Date = get_exports(frame) local args = frame:getParent().args local date = Date('juliandate', args[1], args[2]) if date then return date:text() end return message('Need valid Julian date number') end local function date_to_jd(frame) -- Return Julian date (a number) from a date which may include a time, -- or the current date ('currentdate') or current date and time ('currentdatetime'). -- The word 'Julian' is accepted for the Julian calendar. local Date = get_exports(frame) local args = frame:getParent().args local date = Date(args[1], args[2], args[3], args[4], args[5], args[6], args[7]) if date then return tostring(date.jd) end return message('Need valid year/month/day or "currentdate"') end local function time_interval(frame) -- This implements {{time interval}}. -- There are two positional arguments: date1, date2. -- The default for each is the current date and time. -- Result is date2 - date1 formatted. local Date = get_exports(frame) local args = frame:getParent().args local parms = { want_duration = yes(args.duration), range = yes(args.range) or (args.range == 'dash' and 'dash' or nil), want_sc = yes(args.sc), } local fix = yes(args.fix) and 'fix' or '' local date1 = Date(fix, 'partial', strip_to_nil(args[1]) or 'currentdatetime') if not date1 then return message('Invalid start date in first parameter') end local date2 = Date(fix, 'partial', strip_to_nil(args[2]) or 'currentdatetime') if not date2 then return message('Invalid end date in second parameter') end parms.diff = date2 - date1 for argname, translate in pairs(translate_parameters) do local parm = strip_to_nil(args[argname]) if parm then parm = translate[parm] if parm == nil then -- test for nil because false is a valid setting return message('Parameter ' .. argname .. '=' .. args[argname] .. ' is invalid') end parms[argname] = parm end end if parms.round then local round = parms.round local show = parms.show if round ~= 'on' then if show then if show.id ~= round then return message('Parameter show=' .. args.show .. ' conflicts with round=' .. args.round) end else parms.show = translate_parameters.show[round] end end parms.round = true end return date_difference(parms) end return { age_generic = age_generic, -- can emulate several age templates gsd = date_to_gsd, -- Template:Gregorian_serial_date extract = date_extract, -- Template:Extract jd_to_date = jd_to_date, -- Template:? JULIANDAY = date_to_jd, -- Template:JULIANDAY time_interval = time_interval, -- Template:Time_interval }