|
local p = {}
--[[--------------------------< F O R W A R D D E C L A R A T I O N S >--------------------------------------
]]
local is_set, in_array; -- imported functionsfunction from selected Module:Citation/CS1/Utilities
local cfg; -- table of tables imported from selected Module:Citation/CS1/Configuration
--[[--------------------------< D E F I N E _ M O N T H _ N A M E S _ L I S T S >------------------------------
Here we define month names in three formats: long, short without dots, and short with dots. Both long_months{}
--[[--------------------------< F I L E - S C O P E D E C L A R A T I O N S >--------------------------------
and short_months{} names support jv.wiki and en.wiki month names
File-scope variables are declared here
]]
local long_months = {['Januari']=1, ['Pèbruari']=2, ['Maret']=3, ['April']=4, ['Mèi']=5, ['Juni']=6, ['Juli']=7, ['Agustus']=8, ['Sèptèmber']=9, ['Oktober']=10, ['Nopèmber']=11, ['Dhésèmber']=12,
local lang_object = mw.getContentLanguage(); -- used by is_valid_accessdate(), is_valid_year(), date_name_xlate(); TODO: move to ~/Configuration?
['January']=1, ['February']=2, ['March']=3, ['April']=4, ['May']=5, ['June']=6, ['July']=7, ['August']=8, ['September']=9, ['October']=10, ['November']=11, ['December']=12};
local year_limit; -- used by is_valid_year()
local short_months = {['Jan']=1, ['Pèb']=2, ['Mar']=3, ['Apr']=4, ['Mèi']=5, ['Jun']=6, ['Jul']=7, ['Agu']=8, ['Sèp']=9, ['Okt']=10, ['Nop']=11, ['Dhé']=12,
['Jan']=1, ['Feb']=2, ['Mar']=3, ['Apr']=4, ['May']=5, ['Jun']=6, ['Jul']=7, ['Aug']=8, ['Sep']=9, ['Oct']=10, ['Nov']=11, ['Dec']=12};
--[=[-------------------------< I S _ V A L I D _ A C C E S S D A T E >----------------------------------------
adding 24 hours gives 2015-01-03T00:00:00 – one second more than tomorrow
This function does not work if it is fed month names for languages other than English. Wikimedia #time: parser apparently doesn't understand
apparently doesn't understand non-Engish date month names. This function will always return false when the date contains a non-English month name
contains a non-English month name because good1 is false after the call to lang.formatDate(). To get around that
call this function with YYYY-MM-DD format dates.
For the time being, to use this function, supply it with YYYY-MM-DD format dates. See
[[bs:Modhul:Citation/CS1/Date validation/igralište]] for one possible solution.
]=]
local function is_valid_accessdate (accessdate)
local lang = mw.getContentLanguage();
local good1, good2;
local access_ts, tomorrow_ts; -- to hold unix time stamps representing the dates
good1, access_ts = pcall (lang_object lang.formatDate, lang_objectlang, 'U', accessdate ); -- convert accessdate value to unix timesatmp
good2, tomorrow_ts = pcall (lang_object lang.formatDate, lang_objectlang, 'U', 'today + 2 days' ); -- today midnight + 2 days is one second more than all day tomorrow
if good1 and good2 then
if good1 and good2 then -- lang.formatDate() returns a timestamp in the local script which which tonumber() may not understand
access_ts = tonumber (access_ts) or lang_object:parseFormattedNumber (access_ts); -- convert to numbers for the comparison;
tomorrow_ts = tonumber (tomorrow_ts) or lang_object:parseFormattedNumber (tomorrow_ts);
else
return false; -- one or both failed to convert to unix time stamp
end
if 979516800 <= access_ts and access_ts < tomorrow_ts then -- Wikipedia start date <= accessdate < tomorrow's date
return true;
end
end
--[[--------------------------< I S _ V A L I D _ E M B A R G O _ D A T E >------------------------------------
returns true and date value if that value has proper dmy, mdy, ymd format.
returns false and 9999 (embargoed forever) when date value is not proper format; assumes that when |embargo= is
set, the editor intended to embargo a pmc but |embargo= does not hold a single date.
]]
local function is_valid_embargo_date (v)
if v:match ('^%d%d%d%d%-%d%d%-%d%d$') or -- ymd
v:match ('^%d%d?%s+%a+%s+%d%d%d%d$') or -- dmy
v:match ('^%a+%s+%d%d?%s*,%s*%d%d%d%d$') then -- mdy
return true, v;
end
return false, '9999'; -- if here not good date so return false and set embargo date to long time in future
end
--[[--------------------------< G E T _ M O N T H _ N U M B E R >----------------------------------------------
returns a number according to the month in a date: 1 for January, etc. Capitalization and spelling must be correct. If not a valid month, returns 0
If not a valid month, returns 0
]]
local function get_month_number (month)
return long_months[month] or -- if month is the long-form name
return cfg.date_names['local'].long[month] or cfg.date_names['local'].short[month] or -- look for local names first
short_months[month] or -- if month is short-form name that must not have a dot
cfg.date_names['en'].long[month] or cfg.date_names['en'].short[month] or -- failing that, look for English names
0; -- misspelled, improper case, or not a recognized month name
end
--[[--------------------------< G E T _ S E A S O N _ N U M B E R >--------------------------------------------
returns a number according to the sequence of seasons in a year: 211 for SpringWinter, etc. Capitalization and spelling must be correct. If not a valid season, returns 0
must be correct. If not a valid season, returns 0.
21-24 = Spring, Summer, Autumn, Winter, independent of “Hemisphere”
returns 0 when <param> is not |date=
Season numbering is defined by Extended Date/Time Format (EDTF) Specification (https://www.loc.gov/standards/datetime/)
which became part of ISO 8601 in 2019. See '§Sub-year groupings'. The standard defines various divisions using
numbers 21-41. cs1|2 only supports generic seasons. EDTF does support the distinction between north and south
hemispere seasons but cs1|2 has no way to make that distinction.
These additional divisions not currently supported:
25-28 = Spring - Northern Hemisphere, Summer- Northern Hemisphere, Autumn - Northern Hemisphere, Winter - Northern Hemisphere
29-32 = Spring – Southern Hemisphere, Summer– Southern Hemisphere, Autumn – Southern Hemisphere, Winter - Southern Hemisphere
33-36 = Quarter 1, Quarter 2, Quarter 3, Quarter 4 (3 months each)
37-39 = Quadrimester 1, Quadrimester 2, Quadrimester 3 (4 months each)
40-41 = Semestral 1, Semestral-2 (6 months each)
]]
local function get_season_number (season, param)
local season_list = {['Mangsa salju']=21, ['Mangsa semi']=22, ['Mangsa panas']=23, ['Mangsa rontog']=24}; -- make sure these numbers do not overlap month numbers
if 'date' ~= param then
local temp;
return 0; -- season dates only supported by |date=
temp=season_list[season];
end
if temp then return temp; end -- if season is a valid name return its number
return cfg.date_names['local'].season[season] or -- look for local names first
return 0; -- misspelled, improper case, or not a season name
cfg.date_names['en'].season[season] or -- failing that, look for English names
0; -- not a recognized season name
end
--[[--------------------------< I S _ P R O P E R _ N A M E >--------------------------------------------------
returns a non-zero number if date contains a recognized proper name. Capitalization and spelling must be correct.
--[[--------------------------< G E T _ Q U A R T E R _ N U M B E R >------------------------------------------
returns a number according to the sequence of quarters in a year: 33 for first quarter, etc. Capitalization and spelling
must be correct. If not a valid quarter, returns 0.
33-36 = Quarter 1, Quarter 2, Quarter 3, Quarter 4 (3 months each)
returns 0 when <param> is not |date=
Quarter numbering is defined by Extended Date/Time Format (EDTF) Specification (https://www.loc.gov/standards/datetime/)
which became part of ISO 8601 in 2019. See '§Sub-year groupings'. The standard defines various divisions using
numbers 21-41. cs1|2 only supports generic seasons and quarters.
These additional divisions not currently supported:
37-39 = Quadrimester 1, Quadrimester 2, Quadrimester 3 (4 months each)
40-41 = Semestral 1, Semestral-2 (6 months each)
]]
local function get_quarter_numberis_proper_name (quarter, paramname)
local name_list = {['Natal']=31}
if 'date' ~= param then
local temp;
return 0; -- quarter dates only supported by |date=
temp=name_list[name];
end
if temp then return temp; end -- if name is a valid name return its number
quarter = mw.ustring.gsub (quarter, ' +', ' '); -- special case replace multiple space chars with a single space char
return 0; -- misspelled, improper case, or not a proper name
return cfg.date_names['local'].quarter[quarter] or -- look for local names first
cfg.date_names['en'].quarter[quarter] or -- failing that, look for English names
0; -- not a recognized quarter name
end
--[[--------------------------< I S _ V A L I D _ M O N T H _ O R _ S E A S O N >------------------------------
--returns true if month or season is valid (properly spelled, capitalized, abbreviated)
--[[--------------------------< G E T _ P R O P E R _ N A M E _ N U M B E R >----------------------------------
returns a non-zero number if date contains a recognized proper-name. Capitalization and spelling must be correct.
returns 0 when <param> is not |date=
]]
local function get_proper_name_numberis_valid_month_or_season (name, parammonth_season)
if 0 == get_month_number (month_season) then -- if month text isn't one of the twelve months, might be a season
if 'date' ~= param then
if 0 == get_season_number (month_season) then -- not a month, is it a season?
return 0; -- proper-name dates only supported by |date=
return false; -- return false not a month or one of the five seasons
end
return cfg.date_names['local'].named[name] or -- look for local names dates first
cfg.date_names['en'].named[name] or -- failing that, look for English names
0; -- not a recognized named date
end
--[[--------------------------< G E T _ E L E M E N T _ N U M B E R <------------------------------------------
returns true if month or season or quarter or proper name is valid (properly spelled, capitalized, abbreviated)
]]
local function get_element_number (element, param)
local num;
local funcs = {get_month_number, get_season_number, get_quarter_number, get_proper_name_number}; -- list of functions to execute in order
for _, func in ipairs (funcs) do -- spin through the function list
num = func (element, param); -- call the function and get the returned number
if 0 ~= num then -- non-zero when valid month season quarter
return num; -- return that number
end
end
return niltrue; -- not valid
end
--[[--------------------------< I S _ V A L I D _ Y E A R >----------------------------------------------------
Function gets current year from the server and compares it to year from a citation parameter. Years more than one year in the future are not acceptable.
year in the future are not acceptable.
]]
local year_limit;
local function is_valid_year (year)
if not is_set(year_limit) then
year_limit = tonumber(os.date("%Y"))+1; -- global variable so we only have to fetch it once
end
return tonumber(year) <= year_limit; -- false if year is in the future more than one year
year = tonumber (year) or lang_object:parseFormattedNumber (year); -- convert to numbers for the comparison;
return year and (year <= year_limit) or false;
end
--[[--------------------------< I S _ V A L I D _ D A T E >----------------------------------------------------
Returns true if day is less than or equal to the number of days in month and year is no farther into the future
than next year; else returns false.
month_length = 28; -- then 28 days unless
if 1582 > tonumber(year) then -- Julian calendar
if 0==(year%4) then -- is a leap year?
month_length = 29; -- if leap year then 29 days in February
end
else -- Gregorian calendar
return true;
end
--[[--------------------------< I S _ V A L I D _ M O N T H _ R A N G E _ S T Y L E >--------------------------
if len1 == len2 then
return true; -- both months are short form so return true
elseif 'MayMèi' == month1 or 'MayMèi'== month2 then
return true; -- both months are long form so return true
elseif 3 == len1 or 3 == len2 then
Month pairs are expected to be left to right, earliest to latest in time.
Similarly, seasons are also left to right, earliest to latest in time. There is an oddity with seasons: winter is assigned a value of 1, spring 2, ...,
All season ranges are accepted as valid because there are publishers out there who have published a Summer–Spring YYYY issue so ... ok
fall and autumn 4. Because winter can follow fall/autumn at the end of a calender year, a special test is made to see if |date=Fall-Winter yyyy (4-1) is the date.
]]
local function is_valid_month_season_range(range_start, range_end, param)
local range_start_number = get_month_number (range_start);
local range_end_number;
if 0 == range_start_number then -- is this a month range?
local range_start_number = get_season_number (range_start, param); -- not a month; is it a season? get start season number
range_end_number = get_season_number (range_end, param); -- get end season number
if (0 ~= range_start_number) andthen -- (0is ~=start range_end_number)of thenrange a season?
if range_start_number < range_end_number then -- range_start is a season
return true; -- any season pairing is accepted
return true; -- return true when range_end is also a season and follows start season; else false
end
if 24 == range_start_number and 21 == range_end_number then -- special case when season range is Fall-Winter or Autumn-Winter
return true;
end
end
return false; -- range_start and/is not a month or a season; or range_start is a season and range_end is not; aor improper season sequence
end
-- here when range_start is a month
range_end_number = get_month_number (range_end); -- get end month number
if range_start_number < range_end_number then -- range_start is a month; does range_start precede range_end?
The input table has:
year, year2 – always present; if before 1582, ignore months and days if present
month, month2 – 0 if not provided, 1-12 for months, 21-24 for seasons; 9931– Christmasproper name dates
day, day2 – 0 if not provided, 1-31 for days
the output table receives:
rftdate: an IS8601 formatted date
rftchron: a free-form version of the date, usually without year which is in rftdate (season ranges and proper-namepropername dates)
rftssn: one of four season keywords: winter, spring, summer, fall (lowercase)
rftquarter: one of four values: 1, 2, 3, 4
]]
local date; -- one date or first date in a range
local date2 = ''; -- end of range date
-- start temporary Julian / Gregorian calendar uncertainty detection
local year = tonumber(input.year); -- this temporary code to determine the extent of sources dated to the Julian/Gregorian
local month = tonumber(input.month); -- interstice 1 October 1582 – 1 January 1926
local day = tonumber (input.day);
if (0 ~= day) and -- day must have a value for this to be a whole date
(((1582 == year) and (10 <= month) and (12 >= month)) or -- any whole 1582 date from 1 october to 31 December or
((1926 == year) and (1 == month) and (1 == input.day)) or -- 1 January 1926 or
((1582 < year) and (1925 >= year))) then -- any date 1 January 1583 – 31 December 1925
tCOinS_date.inter_cal_cat = true; -- set category flag true
end
-- end temporary Julian / Gergorian calendar uncertainty detection
if 1582 > tonumber(input.year) or 20 < tonumber(input.month) then -- Julian calendar or season so &rft.date gets year only
date = string.format ('%.4d/%.4d', tonumber(input.year), tonumber(input.year2)) -- assemble the date range
end
if 20 < tonumber(input.month) then -- if season or proper-namepropername date
local season = {[2421]='winter',mangsa [21]='springsalju', [22]='summermangsa semi', [23]='fall',mangsa [33]='1panas', [3424]='2',mangsa [35]='3rontog', [3631]='4', [98]='Easter', [99]='ChristmasNatal'}; -- seasons lowercase, no autumn; proper- names use title case
if 0 == input.month2 then -- single season date
if 4030 <tonumber(input.month) then
tCOinS_date.rftchron = season[input.month]; -- proper- name dates
elseif 30 <tonumber(input.month) then
tCOinS_date.rftquarter = season[input.month]; -- quarters
else
tCOinS_date.rftssn = season[input.month]; -- seasons
return;
end
--[[--------------------------< P A T T E R N S >--------------------------------------------------------------
this is the list of patterns for date formats that this module recognizes. Approximately the first half of these
patterns represent formats that might be reformatted into another format. Those that might be reformatted have
'indicator' letters that identify the content of the matching capture: 'd' (day), 'm' (month), 'a' (anchor year),
'y' (year); second day, month, year have a '2' suffix.
These patterns are used for both date validation and for reformatting. This table should not be moved to ~/Configuration
because changes to this table require changes to check_date() and to reformatter() and reformat_date()
]]
local patterns = {
-- year-initial numerical year-month-day
['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'},
-- month-initial: month day, year
['Mdy'] = {'^(%D-) +([1-9]%d?), +((%d%d%d%d?)%a?)$', 'm', 'd', 'a', 'y'},
-- month-initial day range: month day–day, year; days are separated by endash
['Md-dy'] = {'^(%D-) +([1-9]%d?)[%-–]([1-9]%d?), +((%d%d%d%d)%a?)$', 'm', 'd', 'd2', 'a', 'y'},
-- day-initial: day month year
['dMy'] = {'^([1-9]%d?) +(%D-) +((%d%d%d%d?)%a?)$', 'd', 'm', 'a', 'y'},
-- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed; not supported at en.wiki
-- ['yMd'] = {'^((%d%d%d%d?)%a?) +(%D-) +(%d%d?)$', 'a', 'y', 'm', 'd'},
-- day-range-initial: day–day month year; days are separated by endash
['d-dMy'] = {'^([1-9]%d?)[%-–]([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'd2', 'm', 'a', 'y'},
-- day initial month-day-range: day month - day month year; uses spaced endash
['dM-dMy'] = {'^([1-9]%d?) +(%D-) +[%-–] +([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'm', 'd2', 'm2', 'a', 'y'},
-- month initial month-day-range: month day – month day, year; uses spaced endash
['Md-Mdy'] = {'^(%D-) +([1-9]%d?) +[%-–] +(%D-) +([1-9]%d?), +((%d%d%d%d)%a?)$','m', 'd', 'm2', 'd2', 'a', 'y'},
-- day initial month-day-year-range: day month year - day month year; uses spaced endash
['dMy-dMy'] = {'^([1-9]%d?) +(%D-) +(%d%d%d%d) +[%-–] +([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'm', 'y', 'd2', 'm2', 'a', 'y2'},
-- month initial month-day-year-range: month day, year – month day, year; uses spaced endash
['Mdy-Mdy'] = {'^(%D-) +([1-9]%d?), +(%d%d%d%d) +[%-–] +(%D-) +([1-9]%d?), +((%d%d%d%d)%a?)$', 'm', 'd', 'y', 'm2', 'd2', 'a', 'y2'},
-- these date formats cannot be converted, per se, but month name can be rendered short or long
-- month/season year - month/season year; separated by spaced endash
['My-My'] = {'^(%D-) +(%d%d%d%d) +[%-–] +(%D-) +((%d%d%d%d)%a?)$', 'm', 'y', 'm2', 'a', 'y2'},
-- month/season range year; months separated by endash
['M-My'] = {'^(%D-)[%-–](%D-) +((%d%d%d%d)%a?)$', 'm', 'm2', 'a', 'y'},
-- month/season year or proper-name year; quarter year when First Quarter YYYY etc
['My'] = {'^([^%d–]-) +((%d%d%d%d)%a?)$', 'm', 'a', 'y'}, -- this way because endash is a member of %D; %D- will match January–March 2019 when it shouldn't
-- these date formats cannot be converted
-- ['Q,y'] = {'^(Q%a* +[1-4]), +((%d%d%d%d)%a?)$'}, -- Quarter n, yyyy
['Sy4-y2'] = {'^(%D-) +((%d%d)%d%d)[%-–]((%d%d)%a?)$'}, -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash
['Sy-y'] = {'^(%D-) +(%d%d%d%d)[%-–]((%d%d%d%d)%a?)$'}, -- special case Winter/Summer year-year; year separated with unspaced endash
['y-y'] = {'^(%d%d%d%d?)[%-–]((%d%d%d%d?)%a?)$'}, -- year range: YYY-YYY or YYY-YYYY or YYYY–YYYY; separated by unspaced endash; 100-9999
['y4-y2'] = {'^((%d%d)%d%d)[%-–]((%d%d)%a?)$'}, -- year range: YYYY–YY; separated by unspaced endash
['y'] = {'^((%d%d%d%d?)%a?)$'}, -- year; here accept either YYY or YYYY
}
]]
local function check_date (date_string, param, tCOinS_date)
local year; -- assume that year2, months, and days are not used;
local year2=0; -- second year in a year range
local month=0;
local month2=0; -- second month in a month range
local day=0;
local day2=0; -- second day in a day range
local anchor_year;
local coins_date;
if date_string:match (patterns['ymd'][1]"^%d%d%d%d%-%d%d%-%d%d$") then -- year-initial numerical year month day format
year, month, day=date_string:string.match(date_string, "(%d%d%d%d)%-(%d%d)%-(patterns['ymd'][1]%d%d)");
if 12 < tonumber(month) or 1 > tonumber(month) or 1582 > tonumber(year) or 0 == tonumber(day) then return false; end -- month or day number not valid or not Gregorian calendar
anchor_year = year;
-- elseif mw.ustring.match(date_string, patterns['Q,y'][1]) then -- quarter n, year; here because much the same as Mdy
-- month, anchor_year, year=mw.ustring.match(date_string, patterns['Q,y'][1]);
-- if not is_valid_year(year) then return false; end
-- month = get_quarter_number (month, param); -- get quarter number or nil
-- if not month then return false; end -- not valid whatever it is
elseif mw.ustring.date_string:match(date_string,"^%a+ patterns+['Mdy'1-9]%d?, +[1-9]%d%d%d%a?$") then -- month-initial: month day, year
month, day, anchor_year, year=mw.ustringstring.match(date_string, patterns['Mdy'][1]"(%a+)%s*(%d%d?),%s*((%d%d%d%d)%a?)");
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
elseif mw.ustring.date_string:match(date_string,"^%a+ patterns+['Md1-dy'9]%d?–[1-9]%d?, +[1-9]%d%d%d%a?$") then -- month-initial day range: month day–day, year; days are separated by endash
month, day, day2, anchor_year, year=mw.ustringstring.match(date_string, patterns['Md-dy'][1]"(%a+) +(%d%d?)–(%d%d?), +((%d%d%d%d)%a?)");
if tonumber(day) >= tonumber(day2) then return false; end -- date range order is left to right: earlier to later; dates may not be the same;
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
month2=month; -- for metadata
year2=year;
elseif mw.ustring.date_string:match(date_string, patterns"^['dMy'1-9]%d? +%a+ +[1-9]%d%d%d%a?$") then -- day-initial: day month year
day, month, anchor_year, year=mw.ustringstring.match(date_string, patterns['dMy'][1]"(%d%d*)%s*(%a+)%s*((%d%d%d%d)%a?)");
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
elseif date_string:match("^[1-9]%d?%.? +%a+%.? +[1-9]%d%d%d%a?$") then -- dag først: dag. måned år, dansk punktum tillades
--[[ NOT supported at en.wiki
day, month, anchor_year, year=string.match(date_string, "(%d%d*)%.?%s*(%a+%.?)%s*((%d%d%d%d)%a?)");
elseif mw.ustring.match(date_string, patterns['yMd'][1]) then -- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed
month = get_month_number_jv (month);
anchor_year, year, month, day=mw.ustring.match(date_string, patterns['yMd'][1]);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
-- end NOT supported at en.wiki ]]
elseif mw.ustring.date_string:match(date_string, patterns"^['1-9]%d?–[1-dMy'9]%d? +%a+ +[1-9]%d%d%d%a?$") then -- day-range-initial: day–day month year; days are separated by endash
day, day2, month, anchor_year, year=mw.ustringstring.match(date_string, patterns['"(%d%d?)–(%d%d?) +(%a+) +((%d%d%d%d-dMy'][1])%a?)");
if tonumber(day) >= tonumber(day2) then return false; end -- date range order is left to right: earlier to later; dates may not be the same;
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
month2=month; -- for metadata
year2=year;
elseif mw.ustring.date_string:match(date_string,"^[1-9]%d? +%a+ – patterns['dM1-dMy'9]%d? +%a+ +[1-9]%d%d%d%a?$") then -- day initial month-day-range: day month - day month year; uses spaced endash
day, month, day2, month2, anchor_year, year=mw.ustring.date_string:match(date_string,"(%d%d?) patterns['dM-dMy'][1]+(%a+) – (%d%d?) +(%a+) +((%d%d%d%d)%a?)");
if (not is_valid_month_season_range(month, month2)) or not is_valid_year(year) then return false; end -- date range order is left to right: earlier to later;
month = get_month_number (month); -- for metadata
month2 = get_month_number (month2);
year2=year;
elseif mw.ustring.date_string:match(date_string,"^%a+ patterns+['Md1-Mdy'9]%d? – %a+ +[1-9]%d?, +[1-9]%d%d%d?%a?$") then -- month initial month-day-range: month day – month day, year; uses spaced endash
month, day, month2, day2, anchor_year, year=mw.ustring.date_string:match(date_string"(%a+) +(%d%d?) – (%a+) +(%d%d?), patterns['Md-Mdy'][1]+((%d%d%d%d)%a?)");
if (not is_valid_month_season_range(month, month2, param)) or not is_valid_year(year) then return false; end
month = get_month_number (month); -- for metadata
month2 = get_month_number (month2);
year2=year;
elseif mw.ustring.date_string:match(date_string,"^[1-9]%d? patterns+%a+ +['dMy1-dMy'9]%d%d%d – [1-9]%d? +%a+ +[1-9]%d%d%d%a?$") then -- day initial month-day-year-range: day month year - day month year; uses spaced endash
day, month, year, day2, month2, anchor_year, year2=mw.ustring.date_string:match(date_string,"(%d%d?) patterns['dMy-dMy'][1]+(%a+) +(%d%d%d%d?) – (%d%d?) +(%a+) +((%d%d%d%d?)%a?)");
if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
if not is_valid_year(year2) or not is_valid_month_range_style(month, month2) then return false; end -- year2 no more than one year in the future; months same style
month = get_month_number (month); -- for metadata
month2 = get_month_number (month2);
elseif mw.ustring.date_string:match(date_string"^%a+ +[1-9]%d?, patterns+['Mdy1-Mdy'9]%d%d%d – %a+ +[1-9]%d?, +[1-9]%d%d%d%a?$") then -- month initial month-day-year-range: month day, year – month day, year; uses spaced endash
month, day, year, month2, day2, anchor_year, year2=mw.ustring.date_string:match(date_string"(%a+) +(%d%d?), patterns['Mdy-Mdy'][1]+(%d%d%d%d) – (%a+) +(%d%d?), +((%d%d%d%d)%a?)");
if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
if not is_valid_year(year2) or not is_valid_month_range_style(month, month2) then return false; end -- year2 no more than one year in the future; months same style
month = get_month_number (month); -- for metadata
month2 = get_month_number (month2);
elseif mw.ustring.date_string:match(date_string,"^%a+ patterns+['Sy41-y2'][19]%d%d%d–%d%d%a?$") then -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash
local century;
month, year, century, anchor_year, year2=mw.ustring.date_string:match(date_string,"(%a+) patterns['Sy4-y2'][1]+((%d%d)%d%d)–((%d%d)%a?)");
if 'WinterMangsa salju' ~= month and 'SummerMangsa panas' ~= month then return false end; -- 'month' can only be Winter or Summer
anchor_year=year..'–'..anchor_year; -- assemble anchor_year from both years
year2 = century..year2; -- add the century to year2 for comparisons
if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
month = get_season_number (month, param);
elseif mw.ustring.date_string:match(date_string,"^%a+ patterns+['Sy1-y'9]%d%d%d–[1-9]%d%d%d%a?$") then -- special case Winter/Summer year-year; year separated with unspaced endash
month, year, anchor_year, year2=mw.ustring.date_string:match(date_string,"(%a+) patterns['Sy-y'][1]+(%d%d%d%d)–((%d%d%d%d)%a?)");
if 'WinterMangsa salju' ~= month and 'SummerMangsa panas' ~= month then return false end; -- 'month' can only be Winter or Summer
anchor_year=year..'–'..anchor_year; -- assemble anchor_year from both years
if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
month = get_season_number (month, param); -- for metadata
elseif mw.ustring.date_string:match(date_string,"^%a+ patterns+['My1-My'9]%d%d%d% – %a+ +[1-9]%d%d%d%a?$") then -- month/season year - month/season year; separated by spaced endash
month, year, month2, anchor_year, year2=mw.ustring.date_string:match(date_string,"(%a+) patterns['My-My'][1]+(%d%d%d%d) – (%a+) +((%d%d%d%d)%a?)");
anchor_year=year..'–'..anchor_year; -- assemble anchor_year from both years
if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
if 0 ~= get_month_number(month) and 0 ~= get_month_number(month2) and is_valid_month_range_style(month, month2) then -- both must be month year, same month style
month = get_month_number(month);
month2 = get_month_number(month2);
elseif 0 ~= get_season_number(month, param) and 0 ~= get_season_number(month2, param) then -- both must be or season year, not mixed
month = get_season_number(month, param);
month2 = get_season_number(month2, param);
else
return false;
end
elseif mw.ustring.date_string:match (date_string,"^%a+–%a+ patterns+['M1-My'][19]%d%d%d%a?$") then -- month/season range year; months separated by endash
month, month2, anchor_year, year=mw.ustring.match(date_string,:match patterns['M-My'][1]("(%a+)–(%a+)%s*((%d%d%d%d)%a?)");
if (not is_valid_month_season_range(month, month2, param)) or (not is_valid_year(year)) then return false; end
if 0 ~= get_month_number(month) then -- determined to be a valid range so just check this one to know if month or season
month = get_month_number(month);
month2 = get_month_number(month2);
else
month = get_season_number(month, param);
month2 = get_season_number(month2, param);
end
year2=year;
elseif mw.ustring.date_string:match(date_string,"^%a+ patterns['My'][1]+%d%d%d%d%a?$") then -- month/season/quarter/ year or proper-name year
month, anchor_year, year=mw.ustring.date_string:match(date_string, patterns['My'][1]"(%a+)%s*((%d%d%d%d)%a?)");
if not is_valid_year(year) then return false; end
if not is_valid_month_or_season (month) and 0 == is_proper_name (month) then return false; end
month = get_element_number (month, param); -- get month season quarter proper-name number or nil
if not0 ~= get_month_number(month) then return false; end -- notdetermined to be a valid whateverrange so just check this one to know if month itor isseason
month = get_month_number(month);
elseif 0 ~= get_season_number(month) then
month = get_season_number(month);
else
month = is_proper_name (month); -- must be proper name; not supported in COinS
end
elseif mw.ustring.date_string:match(date_string, patterns"^['y1-y'9]%d%d%d?–[1-9]%d%d%d?%a?$") then -- Year range: YYY-YYY or YYY-YYYY or YYYY–YYYY; separated by unspaced endash; 100-9999
year, anchor_year, year2=mw.ustring.date_string:match(date_string, patterns['y-y'][1]"(%d%d%d%d?)–((%d%d%d%d?)%a?)");
anchor_year=year..'–'..anchor_year; -- assemble anchor year from both years
if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
elseif mw.ustring.date_string:match(date_string, patterns"^['y41-y2'][19]%d%d%d–%d%d%a?$") then -- Year range: YYYY–YY; separated by unspaced endash
local century;
year, century, anchor_year, year2=mw.ustring.date_string:match(date_string, patterns['y4-y2'][1]"((%d%d)%d%d)–((%d%d)%a?)");
anchor_year=year..'–'..anchor_year; -- assemble anchor year from both years
if 13 > tonumber(year2) then return false; end -- don't allow 2003-05 which might be May 2003
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
elseif mw.ustring.date_string:match (date_string, patterns['y']"^[1-9]%d%d%d?%a?$") then -- year; here accept either YYY or YYYY
anchor_year, year=mw.ustring.date_string:match (date_string, patterns['y'][1]"((%d%d%d%d?)%a?)");
if false == is_valid_year(year) then
return false;
else
return false; -- date format not one of the MOS:DATE approved formats
end
if 'access-date' == param then -- test accessdate here because we have numerical date parts
if 0 ~= year and 0 ~= month and 0 ~= day and -- all parts of a single date required
0 == year2 and 0 == month2 and 0 == day2 then -- none of these; accessdate must not be a range
if not is_valid_accessdate (year..'-'..month..'-'..day) then
return false; -- return false when accessdate out of bounds
end
else
return false; -- return false when accessdate is a range of two dates
end
end
local anchor_year; -- will return as nil if the date being tested is not |date=
local COinS_date; -- will return as nil if the date being tested is not |date=
local embargo_date; -- if embargo date is a good dmy, mdy, ymd date then holds original value else reset to 9999
local error_message = "";
local good_date = false;
for k, v in pairs(date_parameters_list) do -- for each date-holding parameter in the list
if is_set(v.val) then -- if the parameter has a value
if v:match("^c%. [1-9]%d%d%d?%a?$") then -- special case for c. year or with or without CITEREF disambiguator - only |date= and |year=
v.val = mw.ustring.gsub (v.val, '%d', cfg.date_names.local_digits); -- translate 'local' digits to Western 0-9
if local year = v.val:match("^c%. ([1-9]%d%d%d?)%a?$") then ; -- specialget case for c.the year orportion withso orit withoutcan CITEREFbe disambiguator - only |date= and |year=tested
local year = v.val:match("c%. ([1-9]%d%d%d?)%a?"); -- get the year portion so it can be tested
if 'date'==k then
anchor_year, COinS_date = v.val:match("((c%. [1-9]%d%d%d?)%a?)"); -- anchor year and COinS_date only from |date= parameter
good_date = is_valid_year(year);
elseif 'year'==k then
end
elseif 'date'==k then -- if the parameter is |date=
if v.val:match("^n%.d%.%a?$") then -- if |date=n.d. with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, v.val:match("((n%.d%.)%a?)"); --"n.d."; no error when date parameter is set to no date
elseif v.val:match("^nd%a?$") then -- if |date=nd with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, v.val:match("((nd)%a?)"); --"nd"; no error when date parameter is set to no date
else
good_date, anchor_year, COinS_date = check_date (v.val, k, tCOinS_date); -- go test the date
end
elseif 'yearaccess-date'==k then -- if the parameter is |yeardate= it should hold only a year value
good_date = check_date (v); -- go test the date
if v.val:match("^[1-9]%d%d%d?%a?$") then -- if |year= 3 or 4 digits only with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, v.val:match("((%d+)%a?)");
end
elseif 'embargo'==k then -- if the parameter is |embargo=
good_date = check_date (v.val, k); -- go test the date
if true == good_date then -- if the date is a valid date
good_date, embargo_date = is_valid_embargo_dateis_valid_accessdate (v.val); -- is |embargo=Wikipedia start date a< singleaccessdate dmy,< mdy, or ymd formattedtomorrow's date? yes:returns embargo; no: returns 9999
end
else -- any other date-holding parameter
good_date = check_date (v.val, k); -- go test the date
end
if false==good_date then -- assemble one error message so we don't add the tracking category multiple times
error_message=error_message .. ", "; -- ... add a comma space separator
end
error_message=error_message .. "|" .. v.namek .. "="; -- add the failed parameter
end
end
end
return anchor_year, embargo_date, error_message; -- and done
end
end
elseif mw.ustring.date_string:match (date_string, "%d%d%d%d[%-–]d–%d%d") then -- YYYY-YY date ranges
local century;
date1, century, date2 = mw.ustring.match(date_string,:match ("((%d%d)%d%d)[%s%-–]+(%d%d)");
date2 = century..date2; -- convert YY to YYYY
if year ~= date1 and year ~= date2 then
--[[--------------------------< R E F O R M A T T A B L E RS >--------------------------------------------------------
These table are used exclusively for reformatting dates
reformat 'date' into new format specified by format_param if pattern_idx (the current format of 'date') can be
reformatted. Does the grunt work for reformat_dates().
The table re_formats maps patern_idx (current format) and format_param (desired format) to a table that holds:
format string used by string.format()
identifier letters ('d', 'm', 'y', 'd2', 'm2', 'y2') that serve as indexes into a table t{} that holds captures
from mw.ustring.match() for the various date parts specified by patterns[pattern_idx][1]
Items in patterns{} have the general form:
['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'}, where:
['ymd'] is pattern_idx
patterns['ymd'][1] is the match pattern with captures for mw.ustring.match()
patterns['ymd'][2] is an indicator letter identifying the content of the first capture
patterns['ymd'][3] ... the second capture etc
when a pattern matches a date, the captures are loaded into table t{} in capture order using the idemtifier
characters as indexes into t{} For the above, a ymd date is in t{} as:
t.y = first capture (year), t.m = second capture (month), t.d = third capture (day)
To reformat, this function is called with the pattern_idx that matches the current format of the date and with
format_param set to the desired format. This function loads table t{} as described and then calls string.format()
with the format string specified by re_format[pattern_idx][format_param][1] using values taken from t{} according
to the capture identifier letters specified by patterns[pattern_idx][format_param][n] where n is 2..
]]
local source_patterns = { -- this table holds patterns that match allowed date formats used to extract date components
local re_formats = {
['dmy'] = '(%d%d?)%s+(%a+)%s+(%d%d%d%d)',
['ymd'] = { -- date format is ymd; reformat to:
['mdy'] = {'(%a+)%s +(%sd%d?), %s', 'm', '+(%d%d%d%d)', 'y'}, -- |df=mdy
['ymd'] = '(%d%d%d%d)%-(%d%d)-(%d%d)',
['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- |df=dmy
-- ['yMd'] = {'%s %s %s', 'y', 'm', 'd'}, -- |df=yMd; not supported at en.wiki
},
['Mdy'] = { -- date format is Mdy; reformat to:
['mdy'] = {'%s %s, %s', 'm', 'd', 'y'}, -- for long/short reformatting
['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- |df=dmy
['ymd'] = {'%s-%s-%s', 'y', 'm', 'd'}, -- |df=ymd
-- ['yMd'] = {'%s %s %s', 'y', 'm', 'd'}, -- |df=yMd; not supported at en.wiki
},
['dMy'] = { -- date format is dMy; reformat to:
['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- for long/short reformatting
['mdy'] = {'%s %s, %s', 'm', 'd', 'y'}, -- |df=mdy
['ymd'] = {'%s-%s-%s', 'y', 'm', 'd'}, -- |df=ymd
-- ['yMd'] = {'%s %s %s', 'y', 'm', 'd'}, -- |df=yMd; not supported at en.wiki
},
['Md-dy'] = { -- date format is Md-dy; reformat to:
['mdy'] = {'%s %s–%s, %s', 'm', 'd', 'd2', 'y'}, -- for long/short reformatting
['dmy'] = {'%s–%s %s %s', 'd', 'd2', 'm', 'y'}, -- |df=dmy -> d-dMy
},
['d-dMy'] = { -- date format is d-d>y; reformat to:
['dmy'] = {'%s–%s %s %s', 'd', 'd2', 'm', 'y'}, -- for long/short reformatting
['mdy'] = {'%s %s–%s, %s', 'm', 'd', 'd2', 'y'}, -- |df=mdy -> Md-dy
},
['dM-dMy'] = { -- date format is dM-dMy; reformat to:
['dmy'] = {'%s %s – %s %s %s', 'd', 'm', 'd2', 'm2', 'y'}, -- for long/short reformatting
['mdy'] = {'%s %s – %s %s, %s', 'm', 'd', 'm2', 'd2', 'y'}, -- |df=mdy -> Md-Mdy
},
['Md-Mdy'] = { -- date format is Md-Mdy; reformat to:
['mdy'] = {'%s %s – %s %s, %s', 'm', 'd', 'm2', 'd2', 'y'}, -- for long/short reformatting
['dmy'] = {'%s %s – %s %s %s', 'd', 'm', 'd2', 'm2', 'y'}, -- |df=dmy -> dM-dMy
},
['dMy-dMy'] = { -- date format is dMy-dMy; reformat to:
['dmy'] = {'%s %s %s – %s %s %s', 'd', 'm', 'y', 'd2', 'm2', 'y2'}, -- for long/short reformatting
['mdy'] = {'%s %s, %s – %s %s, %s', 'm', 'd', 'y', 'm2', 'd2', 'y2'}, -- |df=mdy -> Mdy-Mdy
},
['Mdy-Mdy'] = { -- date format is Mdy-Mdy; reformat to:
['mdy'] = {'%s %s, %s – %s %s, %s', 'm', 'd', 'y', 'm2', 'd2', 'y2'}, -- for long/short reformatting
['dmy'] = {'%s %s %s – %s %s %s', 'd', 'm', 'y', 'd2', 'm2', 'y2'}, -- |df=dmy -> dMy-dMy
},
['My-My'] = { -- these for long/short reformatting
['any'] = {'%s %s – %s %s', 'm', 'y', 'm2', 'y2'}, -- dmy/mdy agnostic
},
['M-My'] = { -- these for long/short reformatting
['any'] = {'%s–%s %s', 'm', 'm2', 'y'}, -- dmy/mdy agnostic
},
['My'] = { -- these for long/short reformatting
['any'] = {'%s %s', 'm', 'y'}, -- dmy/mdy agnostic
},
-- ['yMd'] = { -- not supported at en.wiki
-- ['mdy'] = {'%s %s, %s', 'm', 'd', 'y'}, -- |df=mdy
-- ['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- |df=dmy
-- ['ymd'] = {'%s-%s-%s', 'y', 'm', 'd'}, -- |df=ymd
-- },
}
local short_formats = { -- this table holds format strings used by os.date() for short month names
['dmy'] = '%e %b %Y',
['mdy'] = '%b %e, %Y',
['ymd'] = '%F',
}
local long_formats = { -- this table holds format strings used by os.date() for long month names
local function reformatter (date, pattern_idx, format_param, mon_len)
['dmy'] = '%e %B %Y',
if not in_array (pattern_idx, {'ymd', 'Mdy', 'Md-dy', 'dMy', 'yMd', 'd-dMy', 'dM-dMy', 'Md-Mdy', 'dMy-dMy', 'Mdy-Mdy', 'My-My', 'M-My', 'My'}) then
['mdy'] = '%B %e, %Y',
return; -- not in this set of date format patterns then not a reformattable date
['ymd'] = '%F',
end
}
if 'ymd' == format_param and in_array (pattern_idx, {'ymd', 'Md-dy', 'd-dMy', 'dM-dMy', 'Md-Mdy', 'dMy-dMy', 'Mdy-Mdy', 'My-My', 'M-My', 'My'}) then
return; -- ymd date ranges not supported at en.wiki; no point in reformatting ymd to ymd
end
if in_array (pattern_idx, {'My', 'M-My', 'My-My'}) then -- these are not dmy/mdy so can't be 'reformatted' into either
format_param = 'any'; -- so format-agnostic
end
--[[-------------------------< G E T _ D M Y _ D A T E _ P A R T S >------------------------------------------
-- if 'yMd' == format_param and in_array (pattern_idx, {'yMd', 'Md-dy', 'd-dMy', 'dM-dMy', 'Md-Mdy', 'dMy-dMy', 'Mdy-Mdy'}) then -- not supported at en.wiki
if 'yMd' == format_param then -- not supported at en.wiki
return; -- not a reformattable date
end
local c1, c2, c3, c4, c5, c6, c7; -- these hold the captures specified in patterns[pattern_idx][1]
c1, c2, c3, c4, c5, c6, c7 = mw.ustring.match (date, patterns[pattern_idx][1]); -- get the captures
extracts year, month and day from DMY formatted date, places them in the source_date table, and returns.
local t = { -- table that holds k/v pairs of date parts from the captures and patterns[pattern_idx][2..]
[patterns[pattern_idx][2]] = c1; -- at minimum there is always one capture with a matching indicator letter
[patterns[pattern_idx][3] or 'x'] = c2; -- patterns can have a variable number of captures; each capture requires an indicator letter;
[patterns[pattern_idx][4] or 'x'] = c3; -- where there is no capture, there is no indicator letter so n in patterns[pattern_idx][n] will be nil;
[patterns[pattern_idx][5] or 'x'] = c4; -- the 'x' here spoofs an indicator letter to prevent 'table index is nil' error
[patterns[pattern_idx][6] or 'x'] = c5;
[patterns[pattern_idx][7] or 'x'] = c6;
[patterns[pattern_idx][8] or 'x'] = c7;
};
]]
if t.a then -- if this date has an anchor year capture
t.y = t.a; -- use the anchor year capture when reassembling the date
end
if tonumber(t.m) then -- if raw month is a number (converting from ymd)
if 's' == mon_len then -- if we are to use abbreviated month names
t.m = cfg.date_names['inv_local_s'][tonumber(t.m)]; -- convert it to a month name
else
t.m = cfg.date_names['inv_local_l'][tonumber(t.m)]; -- convert it to a month name
end
t.d = t.d:gsub ('0(%d)', '%1'); -- strip leading '0' from day if present
elseif 'ymd' == format_param then -- when converting to ymd
if 1582 > tonumber(t.y) then -- ymd format dates not allowed before 1582
return;
end
t.m = string.format ('%02d', get_month_number (t.m)); -- make sure that month and day are two digits
t.d = string.format ('%02d', t.d);
elseif mon_len then -- if mon_len is set to either 'short' or 'long'
for _, mon in ipairs ({'m', 'm2'}) do -- because there can be two month names, check both
if t[mon] then
t[mon] = get_month_number (t[mon]); -- get the month number for this month (is length agnostic)
if 0 == t[mon] then return; end -- seasons and named dates can't be converted
t[mon] = (('s' == mon_len) and cfg.date_names['inv_local_s'][t[mon]]) or cfg.date_names['inv_local_l'][t[mon]]; -- fetch month name according to length
end
end
end
local new_date = string.format (re_formats[pattern_idx][format_param][1], -- format string
t[re_formats[pattern_idx][format_param][2]], -- named captures from t{}
t[re_formats[pattern_idx][format_param][3]],
t[re_formats[pattern_idx][format_param][4]],
t[re_formats[pattern_idx][format_param][5]],
t[re_formats[pattern_idx][format_param][6]],
t[re_formats[pattern_idx][format_param][7]],
t[re_formats[pattern_idx][format_param][8]]
);
local function get_dmy_date_parts (date, source_date)
return new_date;
source_date.day, source_date.month, source_date.year = date:match (source_patterns['dmy']); -- get date components as strings
source_date.month = get_month_number (source_date.month); -- get month number
end
--[[-------------------------< RG E FT O R_ M AD TY _ D A T E _ P A R T S >--------------------------------------------------
extracts year, month and day from MDY formatted date, places them in the source_date table, and returns.
Reformats existing dates into the format specified by format.
format is one of several manual keywords: dmy, dmy-all, mdy, mdy-all, ymd, ymd-all. The -all version includes
access- and archive-dates; otherwise these dates are not reformatted.
This function allows automatic date formatting. In ~/Configuration, the article source is searched for one of
the {{use xxx dates}} templates. If found, xxx becomes the global date format as xxx-all. If |cs1-dates= in
{{use xxx dates}} has legitimate value then that value determines how cs1|2 dates will be rendered. Legitimate
values for |cs1-dates= are:
l - all dates are rendered with long month names
ls - publication dates use long month names; access-/archive-dates use abbreviated month names
ly - publication dates use long month names; access-/archive-dates rendered in ymd format
s - all dates are rendered with abbreviated (short) month names
sy - publication dates use abbreviated month names; access-/archive-dates rendered in ymd format
y - all dates are rendered in ymd format
the format argument for automatic date formatting will be the format specified by {{use xxx dates}} with the
value supplied by |cs1-dates so one of: xxx-l, xxx-ls, xxx-ly, xxx-s, xxx-sy, xxx-y, or simply xxx (|cs1-dates=
empty, omitted, or invalid) where xxx shall be either of dmy or mdy.
dates are extracted from date_parameters_list, reformatted (if appropriate), and then written back into the
list in the new format. Dates in date_parameters_list are presumed here to be valid (no errors). This function
returns true when a date has been reformatted, false else. Actual reformatting is done by reformatter().
]]
local function reformat_datesget_mdy_date_parts (date_parameters_listdate, formatsource_date)
source_date.month, source_date.day, source_date.year = date:match (source_patterns['mdy']); -- get date components as strings
local all = false; -- set to false to skip access- and archive-dates
source_date.month = get_month_number (source_date.month); -- get month number
local len_p = 'l'; -- default publication date length shall be long
local len_a = 'l'; -- default access-/archive-date length shall be long
local result = false;
local new_date;
if format:match('%a+%-all') then -- manual df keyword; auto df keyword when length not specified in {{use xxx dates}};
format = format:match('(%a+)%-all'); -- extract the format
all = true; -- all dates are long format dates because this keyword doesn't specify length
elseif format:match('%a+%-[lsy][sy]?') then -- auto df keywords; internal only
all = true; -- auto df applies to all dates; use length specified by capture len_p for all dates
format, len_p, len_a = format:match('(%a+)%-([lsy])([sy]?)'); -- extract the format and length keywords
if 'y' == len_p then -- because allowed by MOS:DATEUNIFY (sort of) range dates and My dates not reformatted
format = 'ymd'; -- override {{use xxx dates}}
elseif (not is_set(len_a)) or (len_p == len_a) then -- no access-/archive-date length specified or same length as publication dates then
len_a = len_p; -- in case len_a not set
end
end -- else only publication dates and they are long
for param_name, param_val in pairs (date_parameters_list) do -- for each date-holding parameter in the list
if is_set (param_val.val) then -- if the parameter has a value
if not (not all and in_array (param_name, {'access-date', 'archive-date'})) then -- skip access- or archive-date unless format is xxx-all; yeah, ugly; TODO: find a better way
for pattern_idx, pattern in pairs (patterns) do
if mw.ustring.match (param_val.val, pattern[1]) then
if all and in_array (param_name, {'access-date', 'archive-date'}) then -- if this date is an access- or archive-date
new_date = reformatter (param_val.val, pattern_idx, (('y' == len_a) and 'ymd') or format, len_a); -- choose ymd or dmy/mdy according to len_a setting
else -- all other dates
new_date = reformatter (param_val.val, pattern_idx, format, len_p);
end
if new_date then -- set when date was reformatted
date_parameters_list[param_name].val = new_date; -- update date in date list
result = true; -- and announce that changes have been made
end
end -- if
end -- for
end -- if
end -- if
end -- for
return result; -- declare boolean result and done
end
--[[--------------------------< DG AE T E _ H Y PM HD E_ ND _A T OE _ DP A SR HT S >------------------------------------------
extracts year, month and day from YMD formatted date, places them in the source_date table, and returns.
Loops through the list of date-holding parameters and converts any hyphen to an ndash. Not called if the cs1|2
template has any date errors.
Modifies the date_parameters_list and returns true if hyphens are replaced, else returns false.
]]
local function date_hyphen_to_dashget_ymd_date_parts (date_parameters_listdate, source_date)
source_date.year, source_date.month, source_date.day = date:match (source_patterns['ymd']); -- get date components as strings
local result = false;
local n;
for param_name, param_val in pairs(date_parameters_list) do -- for each date-holding parameter in the list
if is_set (param_val.val) then
if not mw.ustring.match (param_val.val, '%d%d%d%d%-%d%d%-%d%d') then -- for those that are not ymd dates (ustring because here digits may not be western)
param_val.val, n = param_val.val:gsub ('%-', '–'); -- replace any hyphen with ndash
if 0 ~= n then
date_parameters_list[param_name].val = param_val.val; -- update the list
result = true;
end
end
end
end
return result; -- so we know if any hyphens were replaced
end
--[[-------------------------< DR AE TF EO _R NM A M ET _ X LD A T E S >--------------------------------------------------
Reformats existing dates into the format specified by format and short.
Attempts to translate English month names to local-language month names using names supplied by MediaWiki's
date parser function. This is simple name-for-name replacement and may not work for all languages.
format is one of several keywords: dmy, dmy-all, mdy, mdy-all, ymd, ymd-all. The all version includes access- and
if xlat_dig is true, this function will also translate western (English) digits to the local language's digits.
archive-dates; otherwise these dates are not reformatted
This will also translate ymd dates.
Date ranges, season dates, proper name dates are not currently supported.
]]
local function date_name_xlate reformat_dates (date_parameters_list, xlt_digformat, short)
local all = false; -- set to false to skip access- and archive-dates
local xlate;
local format_str;
local mode; -- long or short month names
local modifiedsource_date = false{};
local date;
if format:match('%a+%-all') then
format = format:match('(%a+)%-all'); -- extract the format
all = true; -- set to true to format access- and archive-dates
end
for param_name, param_val in pairs(date_parameters_list) do -- for each date-holding parameter in the list
if is_set(param_val.val) then -- if the parameter has a value
if not all and in_array (param_name, {'access-date', 'archive-date'}) then -- if access- or archive-date and format not xxx-all
date = param_val.val;
for month in param_val mw.ustring.gmatch (date,= '%a+') do; -- iterateset throughto allempty datesstring inso thewe datedon't (singleprocess date orthis date range)
if cfg.date_names.en.long[month] then
mode = 'F'; -- English name is long so use long local name
elseif cfg.date_names.en.short[month] then
mode = 'M'; -- English name is short so use short local name
else
mode = nil; -- not an English month name; could be local language month name or an English season name
end
if mode then -- might be a season
xlate = lang_object:formatDate(mode, '1' .. month); -- translate the month name to this local language
date = mw.ustring.gsub (date, month, xlate); -- replace the English with the translation
date_parameters_list[param_name].val = date; -- save the translated date
modified = true;
end
end
for source, pattern in pairs(source_patterns) do
if param_val:match(pattern) then
if 'ymd' == source then
get_ymd_date_parts (param_val, source_date); -- get the date parts into the source_date table
elseif 'dmy' == source then
get_dmy_date_parts (param_val, source_date); -- get the date parts into the source_date table
elseif 'mdy' == source then
get_mdy_date_parts (param_val, source_date); -- get the date parts into the source_date table
end
if 'ymd' == format and 1582 > tonumber(source_date.year) then -- ymd format dates not allowed before 1582
if xlt_dig then -- shall we also translate digits?
return false; -- abandon reformatting
date = date:gsub ('%d', cfg.date_names.xlate_digits); -- translate digits from western to 'local digits'
end
date_parameters_list[param_name].val = date; -- save the translated date
modified = true;
if short then
format_str = short_formats[format];
else
format_str = long_formats[format];
end
date_parameters_list[param_name] = os.date (format_str, os.time(source_date)); -- convert date and save
end
end
end
end
return true; -- declare success and done
end
return modified;
end
]]
local function set_selected_modules (cfg_table_ptr, utilities_page_ptr)
is_set = utilities_page_ptr.is_set; -- import functions from selectedselect Module:Citation/CS1/Utilities module
in_array = utilities_page_ptr.in_array; -- import functions from selectedselect Module:Citation/CS1/Utilities module
cfg = cfg_table_ptr; -- import tables from selected Module:Citation/CS1/Configuration
end
--[[--------------------------< E X P O R T E D F U N C T I O N S >------------------------------------------
]]
return { -- return exported functions
year_date_check = year_date_check,
reformat_dates = reformat_dates,
date_hyphen_to_dash = date_hyphen_to_dash,
date_name_xlate = date_name_xlate,
set_selected_modules = set_selected_modules
}
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