Модул:Citation/CS1/Date validation
< Модул:Citation | CS1
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Овај модул подржава испис датума у CS1 и CS2 шаблонима за референцирање. Тачније, модул садржи низ функција које валидирају формате датума и садржаје разних параметара у које се уноси датум у CS1 и CS2 шаблонима.
Ови модули раде заједно како би CS1 и CS2 шаблони за референцирање функционисали:
local p = {}
--[[--------------------------< N O T E >----------------------------------------
It was neccessary to move these lists below out of their corresponding functions (e.g. "get_month_number()" etc.) in order to fix
error »Lua error in Module:Citation/CS1/Date_validation at line "xyz": attempt to index global '"name_of_the_list"' (a nil value).«.
]]
--------------------------< D E F I N E _ M O N T H _ N A M E S _ L I S T S >----------------------------------------
-- long month names of varying lengths; not shortened versions; divided by scripts into Cyrillic and Latin + English
local long_cyrillic_months = {['јануар']=1, ['фебруар']=2, ['март']=3, ['април']=4, ['мај']=5, ['јун']=6, ['јуни']=6, ['јул']=7, ['јули']=7, ['август']=8, ['септембар']=9, ['октобар']=10, ['новембар']=11, ['децембар']=12};
local long_latin_months = {['januar']=1, ['februar']=2, ['mart']=3, ['april']=4, ['maj']=5, ['jun']=6, ['juni']=6, ['jul']=7, ['juli']=7, ['avgust']=8, ['septembar']=9, ['oktobar']=10, ['novembar']=11, ['decembar']=12};
local long_english_months = {['January']=1, ['February']=2, ['March']=3, ['April']=4, ['May']=5, ['June']=6, ['July']=7, ['August']=8, ['September']=9, ['October']=10, ['November']=11, ['December']=12};
-- short month names all three characters; these do not use terminal period; divided by scripts into Cyrillic and Latin + English
local short_cyrillic_months = {['мај']=5, ['јун']=6, ['јул']=7};
local short_latin_months = {['maj']=5, ['jun']=6, ['jul']=7};
local short_english_months = {['Jan']=1, ['Feb']=2, ['Mar']=3, ['Apr']=4, ['May']=5, ['Jun']=6, ['Jul']=7, ['Aug']=8, ['Sep']=9, ['Oct']=10, ['Nov']=11, ['Dec']=12};
-- short month names all three characters; these require terminal period; divided by scripts into Cyrillic and Latin
local dot_cyrillic_months = {['јан']=1, ['феб']=2, ['мар']=3, ['апр']=4, ['авг']=8, ['сеп']=9, ['окт']=10, ['нов']=11, ['дец']=12};
local dot_latin_months = {['jan']=1, ['feb']=2, ['mar']=3, ['apr']=4, ['avg']=8, ['sep']=9, ['okt']=10, ['nov']=11, ['dec']=12};
--------------------------< D E F I N E _ S E A S O N _ N A M E S _ L I S T S >----------------------------------------
-- season ekavian names; make sure these numbers do not overlap month numbers; divided by scripts into Cyrillic and Latin + English
local season_cyrillic_ekavian_list = {['зима']=21, ['пролеће']=22, ['лето']=23, ['јесен']=24};
local season_latin_ekavian_list = {['zima']=21, ['proleće']=22, ['leto']=23, ['jesen']=24};
local season_english_list = {['Winter']=21, ['Spring']=22, ['Summer']=23, ['Fall']=24, ['Autumn']=24};
-- season ijekavian names; make sure these numbers do not overlap month numbers; divided by scripts into Cyrillic and Latin
local season_cyrillic_ijekavian_list = {['зима']=21, ['прољеће']=22, ['љето']=23, ['јесен']=24};
local season_latin_ijekavian_list = {['zima']=21, ['proljeće']=22, ['ljeto']=23, ['jesen']=24};
--------------------------< D E F I N E _ O T H E R _ A C C E P T A B L E _ N A M E S _ L I S T S >----------------------------------------
-- proper names; make sure these numbers do not overlap month or season numbers; divided by scripts into Cyrillic and Latin + English
local name_cyrillic_list = {['Божић']=31}
local name_latin_list = {['Božić']=31}
local name_english_list = {['Christmas']=31}
--[[--------------------------< 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 function from selected Module:Citation/CS1/Utilities
--[=[--------------------------< I S _ V A L I D _ A C C E S S D A T E >----------------------------------------
returns true if:
Wikipedia start date <= accessdate < today + 2 days
Wikipedia start date is 2001-01-15T00:00:00 UTC which is 979516800 seconds after 1970-01-01T00:00:00 UTC (the start of Unix time)
accessdate is the date provided in |accessdate= at time 00:00:00 UTC
today is the current date at time 00:00:00 UTC plus 48 hours
if today is 2015-01-01T00:00:00 then
adding 24 hours gives 2015-01-02T00:00:00 – one second more than today
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 non-Engish date month names. This function will always return false when the date
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:Modul: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.formatDate, lang, 'U', accessdate ); -- convert accessdate value to unix timestamp
good2, tomorrow_ts = pcall( lang.formatDate, lang, 'U', 'today + 2 days' ); -- today midnight + 2 days is one second more than all day tomorrow
if good1 and good2 then
access_ts = tonumber (access_ts); -- convert to numbers for the comparison
tomorrow_ts = tonumber (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;
else
return false; -- accessdate out of range
end
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 јануар, 5 for мај or maj, etc.
Capitalization and spelling must be correct.
If not a valid month, returns 0.
]]
local function get_month_number (month)
return long_cyrillic_months[month] or -- if month is the long-Cyrillic-form name
long_latin_months[month] or -- if month is the long-Latin-form name
short_cyrillic_months[month] or -- if month is non-dotted short-Cyrillic-form name
short_latin_months[month] or -- if month is non-dotted short-Latin-form name
0; -- misspelled, improper case, or not a month name
end
--[[--------------------------< G E T _ E N G L I S H _ M O N T H _ N U M B E R >----------------------------------------------
Returns a number according to the month in a date: 1 for January, 5 for May, etc.
Capitalization and spelling must be correct.
If not a valid month, returns 0.
]]
local function get_english_month_number (month)
return long_english_months[month] or -- if month is the long-English-form name
short_english_months[month] or -- if month is short-English-form name
0; -- misspelled, improper case, or not a month name
end
--[[--------------------------< G E T _ D O T _ M O N T H _ N U M B E R >--------------------------------------
Returns a number according to the short dotted month in a date: 1 for јан., 4 for апр. or apr., etc.
This function is specially made for short months that must be followed with a dot.
The short months мај, јун, јул, maj, jun, and jul are omitted here because these
month names are not followed with a dot, and will not be allowed for use in any
short-dotted-months-ranges.
If not a valid month, returns 0.
]]
local function get_dot_month_number (month)
return dot_cyrillic_months[month] or -- if month is dotted short-Cyrillic-form name
dot_latin_months[month] or -- if month is dotted short-Latin-form name
0; -- misspelled, improper case, or not a month name
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$') or -- ymd
mw.ustring.match (v, '^%d%d?%.?%s+%a+%s+%d%d%d%d$') or -- dmy
mw.ustring.match (v, '^%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 _ S E A S O N _ N U M B E R >--------------------------------------------
Returns a number according to the sequence of seasons in a year: 1 for зима or zima, etc. Capitalization and spelling must be correct. If not a valid season, returns 0.
Divided by scripts into Cyrillic and Latin, and by pronunciation into ekavian and ijekavian.
]]
local year_limit;
local function get_season_number (season)
return season_cyrillic_ekavian_list[season] or -- if season is a valid Cyrillic ekavian name return its number
season_latin_ekavian_list[season] or -- if season is a valid Latin ekavian name return its number
season_cyrillic_ijekavian_list[season] or -- if season is a valid Cyrillic ijekavian name return its number
season_latin_ijekavian_list[season] or -- if season is a valid Latin ijekavian name return its number
0; -- misspelled, improper case, or not a season name
end
--[[--------------------------< G E T _ E N G L I S H _ S E A S O N _ N U M B E R >--------------------------------------------
Returns a number according to the sequence of seasons in a year: 1 for Winter, etc. Capitalization and spelling must be correct. If not a valid season, returns 0.
]]
local year_limit;
local function get_english_season_number (season)
return season_english_list[season] or -- if season is a valid English name return its number
0; -- misspelled, improper case, or not a 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. Divided by scripts into Cyrillic and Latin.
]]
local function is_proper_name (name)
return name_cyrillic_list[name] or -- if name is a valid Cyrillic name return its number
name_english_list[name] or -- if name is a valid English name return its number
name_latin_list[name] or -- if name is a valid Latin name return its number
0; -- misspelled, improper case, or not a proper 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, (non-)dotted, etc.).
]]
local function is_valid_month_or_season (month_season)
if 0 == get_month_number (month_season) then -- if month text isn't one of the long months or short non-dotted months, might be a short dotted month or season
if 0 == get_english_month_number (month_season) then -- not a long month or a short non-dotted month, is it a English month?
if 0 == get_dot_month_number (month_season) then -- not a long month or a short non-dotted month, is it a short dotted month?
if 0 == get_season_number (month_season) then -- not a short dotted month i.e. not a month, is it a season?
if 0 == get_english_season_number (month_season) then -- not a short dotted month i.e. not a month, is it an English season?
return false; -- return false; not a month or one of the seasons
end -- return false; not a month or one of the seasons
end
end
end
end
return true;
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.
]]
local year_limit;
local function is_valid_year(year)
if not is_set(year_limit) then
year_limit = tonumber(os.date("%Y"))+1; -- save a copy 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
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.
Assumes Julian calendar prior to year 1582 and Gregorian calendar thereafter. Accounts for Julian calendar leap
years before 1582 and Gregorian leap years after 1582. Where the two calendars overlap (1582 to approximately
1923) dates are assumed to be Gregorian.
]]
local function is_valid_date (year, month, day)
local days_in_month = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
local month_length;
if not is_valid_year(year) then -- no farther into the future than next year
return false;
end
month = tonumber(month); -- required for YYYY-MM-DD dates
if (2==month) then -- if February
month_length = 28; -- then 28 days unless
if 1582 > tonumber(year) then -- Julian calendar
if 0==(year%4) then
month_length = 29;
end
else -- Gregorian calendar
if (0==(year%4) and (0~=(year%100) or 0==(year%400))) then -- is a leap year?
month_length = 29; -- if leap year then 29 days in February
end
end
else
month_length=days_in_month[month];
end
if tonumber (day) > month_length then
return false;
end
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 >--------------------------
Months in a range are expected to have the same style: "јануар—март" or "јан.—мар." but not "фебруар—мар." or "апр.—август" etc.
These are special tests for long Cyrillic months, long Latin months, short Cyrillic months, short Latin months, dot Cyrillic months, and dot Latin months.
Returns true when style (depending on whether Cyrillic or Latin, whether long or short, whether dotted or non-dotted) for both months is the same.
]]
local function is_valid_month_range_style (month1, month2)
if long_cyrillic_months[month1] and long_cyrillic_months[month2] then
return true; -- both are long Cyrillic month names
elseif long_english_months[month1] and long_english_months[month2] then
return true; -- both are long English month names
elseif long_latin_months[month1] and long_latin_months[month2] then
return true; -- both are long Latin month names
elseif short_cyrillic_months[month1] and short_cyrillic_months[month2] then
return true; -- both are non-dotted short Cyrillic month names
elseif short_english_months[month1] and short_english_months[month2] then
return true; -- both are [non-dotted] short English month names
elseif short_latin_months[month1] and short_latin_months[month2] then
return true; -- both are non-dotted short Latin month names
elseif dot_cyrillic_months[month1] and dot_cyrillic_months[month2] then
return true; -- both are dotted short Cyrillic month names
elseif dot_latin_months[month1] and dot_latin_months[month2] then
return true; -- both are dotted short Latin month names
else
return false; -- months are mixed form so return false
end
end
--[[--------------------------< I S _ V A L I D _ S E A S O N _ R A N G E _ S T Y L E >--------------------------
Seasons in a range are expected to have the same style: "пролеће—лето" or "ljeto—jesen" but not "прољеће—лето" or "ljeto—јесен" etc.
These are special tests for Cyrillic ekavian seasons, Cyrillic ijekavian seasons, Latin ekavian seasons and Latin ijekavian seasons.
Returns true when style (depending on whether Cyrillic or Latin, whether ekavian or ijekavian) for both seasons is the same.
]]
local function is_valid_season_range_style (season1, season2)
if season_cyrillic_ekavian_list[season1] and season_cyrillic_ekavian_list[season2] then
return true; -- both are Cyrillic ekavian season names
elseif season_english_list[season1] and season_english_list[season2] then
return true; -- both are English season names
elseif season_cyrillic_ijekavian_list[season1] and season_cyrillic_ijekavian_list[season2] then
return true; -- both are Cyrillic ijekavian season names
elseif season_latin_ekavian_list[season1] and season_latin_ekavian_list[season2] then
return true; -- both are Latin ekavian season names
elseif season_latin_ijekavian_list[season1] and season_latin_ijekavian_list[season2] then
return true; -- both are Latin ijekavian season names
else
return false; -- seasons are mixed form so return false
end
end
--[[--------------------------< I S _ V A L I D _ M O N T H _ S E A S O N _ R A N G E >------------------------
Check a pair of long months or short non-dotted months, or seasons to see if both are valid members of a long month or short non-dotted month, or season pair.
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 21, Spring 22, Summer 23,
Fall/Autumn 24. Because Winter can follow Fall/Autumn at the end of a calender year, a special test is made to see if "|date=јесен-зима yyyy" (24-21) is the date.
]]
local function is_valid_month_season_range(range_start, range_end)
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); -- not a month; is it a season? get start season number
range_end_number = get_season_number (range_end); -- get end season number
if 0 ~= range_start_number then -- is start of range a season?
if range_start_number < range_end_number and 21 ~= range_start_number then -- range_start is a season except Winter
if is_valid_season_range_style (range_start, range_end) then -- do seasons have the same style?
return true; -- return true when range_end is also a season and follows start season, and both season names are of same style; else false
end
end
if (24 == range_start_number and 21 == range_end_number) or (23 == range_start_number and 21 == range_end_number) or (22 == range_start_number and 21 == range_end_number) then -- special cases when season range is Fall-Winter or Autumn-Winter, or Summer-Winter, or Spring-Winter
if is_valid_season_range_style (range_start, range_end) then -- do seasons have the same style?
return true;
end
end
end
return false; -- range_start is not a month or a season; or range_start is a season and range_end is not; or improper season sequence; or seasons are not of same style
end
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?
if is_valid_month_range_style (range_start, range_end) then -- do months have the same style?
return true; -- proper order and same style
end
end
return false; -- range_start month number is greater than or equal to range end number; or range end isn't a month
end
--[[--------------------------< I S _ V A L I D _ E N G L I S H _ M O N T H _ S E A S O N _ R A N G E >------------------------
Check a pair of long months or short English months, or seasons to see if both are valid members of a long month or short month, or season pair.
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 21, Spring 22, Summer 23,
Fall/Autumn 24. 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" (24-21) is the date.
]]
local function is_valid_english_month_season_range(range_start, range_end)
local range_start_number = get_english_month_number (range_start);
local range_end_number;
if 0 == range_start_number then -- is this a month range?
local range_start_number = get_english_season_number (range_start); -- not a month; is it a season? get start season number
range_end_number = get_english_season_number (range_end); -- get end season number
if 0 ~= range_start_number then -- is start of range a season?
if range_start_number < range_end_number and 21 ~= range_start_number then -- range_start is a season except Winter
if is_valid_season_range_style (range_start, range_end) then -- do seasons have the same style?
return true; -- return true when range_end is also a season and follows start season, and both season names are of same style; else false
end
end
if (24 == range_start_number and 21 == range_end_number) or (23 == range_start_number and 21 == range_end_number) or (22 == range_start_number and 21 == range_end_number) then -- special cases when season range is Fall-Winter or Autumn-Winter, or Summer-Winter, or Spring-Winter
if is_valid_season_range_style (range_start, range_end) then -- do seasons have the same style?
return true;
end
end
end
return false; -- range_start is not a month or a season; or range_start is a season and range_end is not; or improper season sequence; or seasons are not of same style
end
range_end_number = get_english_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?
if is_valid_month_range_style (range_start, range_end) then -- do months have the same style?
return true; -- proper order and same style
end
end
return false; -- range_start month number is greater than or equal to range end number; or range end isn't a month
end
--[[--------------------------< I S _ V A L I D _ D O T _ M O N T H _ R A N G E >------------------------
Check a pair of dot-months to see if both are valid members of a dot-month pair.
Dot-month pairs are expected to be left to right, earliest to latest in time.
]]
local function is_valid_dot_month_range(range_start, range_end)
local range_start_number = get_dot_month_number (range_start);
if 0 == range_start_number then -- is this a dot-month range?
return false; -- range_start is not a dot-month
end
local range_end_number = get_dot_month_number (range_end); -- get end dot-month number
if range_start_number < range_end_number then -- range_start is a dot-month; does range_start precede range_end?
if is_valid_month_range_style (range_start, range_end) then -- do dot-months have the same style (either Cyrillic or Latin)?
return true; -- proper order and same style
end
end
return false; -- range_start dot-month number is greater than or equal to range end number; or range end isn't a month
end
--[[--------------------------< M A K E _ C O I N S _ D A T E >------------------------------------------------
This function receives a table of date parts for one or two dates and an empty table reference declared in
Module:Citation/CS1. The function is called only for |date= parameters and only if the |date=<value> is
determined to be a valid date format. The question of what to do with invalid date formats is not answered here.
The date parts in the input table are converted to an ISO 8601 conforming date string:
single whole dates: yyyy-mm-dd
month and year dates: yyyy-mm
year dates: yyyy
ranges: yyyy-mm-dd/yyyy-mm-dd
yyyy-mm/yyyy-mm
yyyy/yyyy
Dates in the Julian calendar are reduced to year or year/year so that we don't have to do calendar conversion from
Julian to Proleptic Gregorian.
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; 31– proper 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 propername dates)
rftssn: one of four season keywords: winter, spring, summer, fall (lowercase)
]]
local function make_COinS_date (input, tCOinS_date)
local date; -- one date or first date in a range
local date2 = ''; -- end of range date
if 1582 > tonumber(input.year) or 20 < tonumber(input.month) then -- Julian calendar or season so &rft.date gets year only
date = input.year;
if 0 ~= input.year2 and input.year ~= input.year2 then -- if a range, only the second year portion when not the same as range start year
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 propername date
local season = {[21]='winter', [22]='spring', [23]='summer', [24]='fall', [31]='Christmas'}; -- seasons lowercase, no autumn; proper names use title case
if 0 == input.month2 then -- single season date
if 30 <tonumber(input.month) then
tCOinS_date.rftchron = season[input.month]; -- proper name dates
else
tCOinS_date.rftssn = season[input.month]; -- seasons
end
else -- season range with a second season specified
if input.year ~= input.year2 then -- season year – season year range or season year–year
tCOinS_date.rftssn = season[input.month]; -- start of range season; keep this?
if 0~= input.month2 then
tCOinS_date.rftchron = string.format ('%s %s - %s %s', season[input.month], input.year, season[input.month2], input.year2); --use hyphen in metadata
end
else -- season–season year range
tCOinS_date.rftssn = season[input.month]; -- start of range season; keep this?
tCOinS_date.rftchron = season[input.month] .. '-' .. season[input.month2]; -- season–season year range (uses hyphen separator)
end
end
end
tCOinS_date.rftdate = date;
return; -- done
end
if 0 ~= input.day then
date = string.format ('%s-%.2d-%.2d', input.year, tonumber(input.month), tonumber(input.day)); -- whole date
elseif 0 ~= input.month then
date = string.format ('%s-%.2d', input.year, tonumber(input.month)); -- year and month
else
date = string.format ('%s', input.year); -- just year
end
if 0 ~= input.year2 then
if 0 ~= input.day2 then
date2 = string.format ('/%s-%.2d-%.2d', input.year2, tonumber(input.month2), tonumber(input.day2)); -- whole date
elseif 0 ~= input.month2 then
date2 = string.format ('/%s-%.2d', input.year2, tonumber(input.month2)); -- year and month
else
date2 = string.format ('/%s', input.year2); -- just year
end
end
tCOinS_date.rftdate = date .. date2; -- date2 has the '/' separator
return;
end
--[[--------------------------< C H E C K _ D A T E >----------------------------------------------------------
!!! DON'T UPDATE MATCH STRINGS ONLY HERE BUT ALSO IN Модул:Citation/CS1, AND BOTH AT THE SAME TIME !!!
Check date format to see that it is one of the formats approved by WP:DATESNO or WP:DATERANGE.
!!! NOTE !!!
Allowed range separators are mdash (primar), ndash and hyphen. Any ndash or hyphen is automatically converted to mdash.
Additionally, checks the date to see that it is a real date: no 31 in 30-day months; no 29 February when not a leap year.
Months, both long-form and abbreviations, and seasons must be spelled correctly. Future years beyond next year are not allowed.
If the date fails the format tests, this function returns false and does not return values for anchor_year and
COinS_date. When this happens, the date parameter is used in the COinS metadata and the CITEREF identifier gets
its year from the year parameter if present otherwise CITEREF does not get a date value.
Inputs:
date_string - date string from date-holding parameters (date, year, accessdate, embargo, archivedate, etc.)
Returns:
false if date string is not a real date; else
true, anchor_year, COinS_date
anchor_year can be used in CITEREF anchors
COinS_date is ISO 8601 format date; see make_COInS_date()
!!! DON'T UPDATE MATCH STRINGS ONLY HERE BUT ALSO IN Модул:Citation/CS1, AND BOTH AT THE SAME TIME !!!
]]
local function check_date (date_string, tCOinS_date, test_accessdate)
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 mw.ustring.match(date_string, "^%d%d%d%d%-%d%d%-%d%d$") then -- 01. yyyy-mm-dd
year, month, day=mw.ustring.match(date_string, "(%d%d%d%d)%-(%d%d)%-(%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, "^%d?%d%. *%d?%d%. *%d%d%d%d?%.?%a?$") then -- 02. [d]d. [m]m. yyyy
day, month, year=mw.ustring.match(date_string, "(%d?%d)%. *(%d?%d)%. *(%d%d%d%d?)%.?%a?");
if 12 < tonumber(month) or 1 > tonumber(month) or 0 == day then return false; end -- return false if month number not valid or day is zero
anchor_year = year;
elseif mw.ustring.match(date_string, "^[1-9]%d?%. +%a+ +[1-9]%d%d%d?%.?%a?$") then -- 03. (d)d. month yyyy
day, month, anchor_year, year=mw.ustring.match(date_string, "(%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 mw.ustring.match(date_string, "^[1-9]%d? +%a+ +[1-9]%d%d%d?%a?$") then -- 03. (d)d month yyyy /English/
day, month, anchor_year, year=mw.ustring.match(date_string, "(%d%d*)%s*(%a+)%s*((%d%d%d%d?)%a?)");
month = get_english_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d?, +[1-9]%d%d%d?%a?$") then -- 03. month (d)d, yyyy /English md/
month, day, anchor_year, year=mw.ustring.match(date_string, "(%a+)%s*(%d%d?),%s*((%d%d%d%d?)%a?)");
month = get_english_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.match(date_string, "^[1-9]%d?%. +%a%a%a%. +[1-9]%d%d%d?%.?%a?$") then -- 04. (d)d. mon. yyyy
day, month, anchor_year, year=mw.ustring.match(date_string, "(%d%d*)%.%s*(%a%a%a)%.%s*((%d%d%d%d?)%.?%a?)");
month = get_dot_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the nine dot-months
elseif mw.ustring.match(date_string, "^%d?%d[%-–—]%d%d?%. +%d?%d%. +[1-9]%d%d%d?%.?$") then -- 05. [d]d—[d]d. [m]m. yyyy
day, day2, month, year=mw.ustring.match(date_string, "(%d%d?)[%-–—](%d%d?)%. +(%d?%d)%. +(%d%d%d%d?)%.?");
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;
if 12 < tonumber(month) or 1 > tonumber(month) or 0 == day then return false; end -- return false if month number not valid or day is zero
anchor_year = year;
elseif mw.ustring.match(date_string, "^%d?%d/%d%d?%. +%d?%d%. +[1-9]%d%d%d?%.?%a?$") then -- 06. [d]d/[d]d. [m]m. yyyy
day, day2, month, year=mw.ustring.match(date_string, "(%d%d?)/(%d%d?)%. +(%d?%d)%. +(%d%d%d%d?)%.?");
if 1 ~= tonumber(day2) - tonumber(day) then return false; end -- date range order is left to right: earlier to later and CONSECUTIVE; dates may not be the same;
if 12 < tonumber(month) or 1 > tonumber(month) or 0 == day then return false; end -- return false if month number not valid or day is zero
anchor_year = year;
elseif mw.ustring.match(date_string, "^[1-9]%d?[%-–—][1-9]%d?%. +%a+ +[1-9]%d%d%d%.?%a?$") then -- 07. (d)d—(d)d. month yyyy
day, day2, month, anchor_year, year=mw.ustring.match(date_string, "(%d%d?)[%-–—](%d%d?)%. +(%a+) +((%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
elseif mw.ustring.match(date_string, "^[1-9]%d?[%-–][1-9]%d? +%a+ +[1-9]%d%d%d%a?$") then -- 07. (d)d–(d)d month yyyy /English/
day, day2, month, anchor_year, year=mw.ustring.match(date_string, "(%d%d?)[%-–](%d%d?) +(%a+) +((%d%d%d%d)%a?)");
if tonumber(day) >= tonumber(day2) then return false; end -- date range order is left to right: earlier to later; dates may not be the same;
month = get_english_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
month2=month; -- for metadata
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d?[%-–][1-9]%d?, +[1-9]%d%d%d%a?$") then -- 07. month (d)d–(d)d, yyyy /English md/
month, day, day2, anchor_year, year=mw.ustring.match(date_string, "(%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_english_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
elseif mw.ustring.match(date_string, "^[1-9]%d?/[1-9]%d?%. +%a+ +[1-9]%d%d%d%.?%a?$") then -- 08. (d)d/(d)d. month yyyy
day, day2, month, anchor_year, year=mw.ustring.match(date_string, "(%d%d?)/(%d%d?)%. +(%a+) +((%d%d%d%d)%.?%a?)");
if 1 ~= tonumber(day2) - tonumber(day) then return false; end -- date range order is left to right: earlier to later and CONSECUTIVE; dates may not be the same;
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
month2=month; -- for metadata
elseif mw.ustring.match(date_string, "^[1-9]%d?[%-–—][1-9]%d?%. +%a%a%a%. +[1-9]%d%d%d%.?%a?$") then -- 09. (d)d—(d)d. mon. yyyy
day, day2, month, anchor_year, year=mw.ustring.match(date_string, "(%d%d?)[%-–—](%d%d?)%. +(%a%a%a)%. +((%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_dot_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the nine dot-months
month2=month; -- for metadata
elseif mw.ustring.match(date_string, "^[1-9]%d?/[1-9]%d?%. +%a%a%a%. +[1-9]%d%d%d%.?%a?$") then -- 10. (d)d/(d)d. mon. yyyy
day, day2, month, anchor_year, year=mw.ustring.match(date_string, "(%d%d?)/(%d%d?)%. +(%a%a%a)%. +((%d%d%d%d)%.?%a?)");
if 1 ~= tonumber(day2) - tonumber(day) then return false; end -- date range order is left to right: earlier to later and CONSECUTIVE; dates may not be the same;
month = get_dot_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the nine dot-months
month2=month; -- for metadata
elseif mw.ustring.match(date_string, "^%d%d?%. +%d?%d%.? [%-–—] %d%d?%. +%d?%d%. +[1-9]%d%d%d%.?$") then -- 11. [d]d. [m]m. — [d]d. [m]m. yyyy
day, month, day2, month2, year=mw.ustring.match(date_string, "(%d%d?)%. +(%d?%d)%.? [%-–—] (%d%d?)%. +(%d?%d)%. +(%d%d%d%d)%.?");
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.match(date_string, "^[1-9]%d?%. +%a+ [%-–—] [1-9]%d?%. +%a+ +[1-9]%d%d%d%.?%a?$") then -- 12. (d)d. month — (d)d. month yyyy
day, month, day2, month2, anchor_year, year=mw.ustring.match(date_string, "(%d%d?)%. +(%a+) [%-–—] (%d%d?)%. +(%a+) +((%d%d%d%d)%.?%a?)");
if (not is_valid_month_season_range(month, month2)) or not is_valid_year(year) then return false; end -- date range order is left to right: earlier to later;
month = get_month_number (month); -- for metadata
month2 = get_month_number (month2);
year2=year;
elseif mw.ustring.match(date_string, "^[1-9]%d? +%a+ [%-–] [1-9]%d? +%a+ +[1-9]%d%d%d%a?$") then -- 12. (d)d month – (d)d month yyyy /English/
day, month, day2, month2, anchor_year, year=mw.ustring.match(date_string, "(%d%d?) +(%a+) [%-–] (%d%d?) +(%a+) +((%d%d%d%d)%a?)");
if (not is_valid_english_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_english_month_number (month); -- for metadata
month2 = get_english_month_number (month2);
year2=year;
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d? [%-–] %a+ +[1-9]%d?, +[1-9]%d%d%d%a?$") then -- 12. month (d)d – month (d)d, yyyy /English md/
month, day, month2, day2, anchor_year, year=mw.ustring.match(date_string, "(%a+) +(%d%d?) [%-–] (%a+) +(%d%d?), +((%d%d%d%d)%a?)");
if (not is_valid_english_month_season_range(month, month2)) or not is_valid_year(year) then return false; end -- date range order is left to right: earlier to later;
month = get_english_month_number (month); -- for metadata
month2 = get_english_month_number (month2);
year2=year;
elseif mw.ustring.match(date_string, "^[1-9]%d?%. +%a%a%a%. [%-–—] [1-9]%d?%. +%a%a%a%. +[1-9]%d%d%d%.?%a?$") then -- 13. (d)d. mon. — (d)d. mon. yyyy
day, month, day2, month2, anchor_year, year=mw.ustring.match(date_string, "(%d%d?)%. +(%a%a%a)%. [%-–—] (%d%d?)%. +(%a%a%a)%. +((%d%d%d%d)%.?%a?)");
if (not is_valid_dot_month_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_dot_month_number (month); -- for metadata
month2 = get_dot_month_number (month2);
year2=year;
elseif mw.ustring.match(date_string, "^%d%d?%. +%d?%d%. +[1-9]%d%d%d%.? [%-–—] %d%d?%. +%d?%d%. +[1-9]%d%d%d%.?%a?$") then -- 14. [d]d. [m]m. yyyy. — [d]d. [m]m. yyyy
day, month, year, day2, month2, year2=mw.ustring.match(date_string, "(%d%d?)%. +(%d?%d)%. +(%d%d%d%d?)%.? [%-–—] (%d%d?)%. +(%d?%d)%. +(%d%d%d%d?)%.?");
if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
if not is_valid_year(year2) or not is_valid_month_range_style(month, month2) then return false; end -- year2 no more than one year in the future; months same style
month = get_month_number (month); -- for metadata
month2 = get_month_number (month2);
elseif mw.ustring.match(date_string, "^[1-9]%d?%. +%a+ +[1-9]%d%d%d%.? [%-–—] [1-9]%d?%. +%a+ +[1-9]%d%d%d%.?%a?$") then -- 15. (d)d. month yyyy — (d)d. month yyyy
day, month, year, day2, month2, anchor_year, year2=mw.ustring.match(date_string, "(%d%d?)%. +(%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.match(date_string, "^[1-9]%d? +%a+ +[1-9]%d%d%d [%-–] [1-9]%d? +%a+ +[1-9]%d%d%d%a?$") then -- 15. (d)d month yyyy – (d)d month yyyy /English/
day, month, year, day2, month2, anchor_year, year2=mw.ustring.match(date_string, "(%d%d?) +(%a+) +(%d%d%d%d) [%-–] (%d%d?) +(%a+) +((%d%d%d%d)%a?)");
if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
if not is_valid_year(year2) or not is_valid_month_range_style(month, month2) then return false; end -- year2 no more than one year in the future; months same style
month = get_english_month_number (month); -- for metadata
month2 = get_english_month_number (month2);
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d?, +[1-9]%d%d%d [%-–] %a+ +[1-9]%d?, +[1-9]%d%d%d%a?$") then -- 15. month (d)d, yyyy – month (d)d, yyyy /English md/
month, day, year, month2, day2, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +(%d%d?), +(%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_english_month_number (month); -- for metadata
month2 = get_english_month_number (month2);
elseif mw.ustring.match(date_string, "^[1-9]%d?%. +%a%a%a%. +[1-9]%d%d%d%.? [%-–—] [1-9]%d?%. +%a%a%a%. +[1-9]%d%d%d%.?%a?$") then -- 16. (d)d. mon. yyyy — (d)d. mon. yyyy
day, month, year, day2, month2, anchor_year, year2=mw.ustring.match(date_string, "(%d%d?)%. +(%a%a%a)%. +(%d%d%d%d)%.? [%-–—] (%d%d?)%. +(%a%a%a)%. +((%d%d%d%d)%.?%a?)");
if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
if not is_valid_year(year2) or not is_valid_month_range_style(month, month2) then return false; end -- year2 no more than one year in the future; months same style
month = get_dot_month_number (month); -- for metadata
month2 = get_dot_month_number (month2);
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d[%-–—]%d%d%.?%a?$") then -- 17. special case "Summer/Winter year—year" (YYYY-YY) {лето\зима\leto\zima\љето\ljeto yyyy—yy}
local century;
month, year, century, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +((%d%d)%d%d)[%-–—]((%d%d)%.?%a?)");
if ('лето' ~= month and 'зима' ~= month) and ('leto' ~= month and 'zima' ~= month) and ('љето' ~= month and 'зима' ~= month) and ('ljeto' ~= month and 'zima' ~= month) then return false end; -- 'month' can only be Summer or Winter
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 consecutive 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);
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d[%-–]%d%d%a?$") then -- 17. special case "Summer/Winter year—year" (YYYY-YY) {Summer\Winter yyyy–yy} /English/
local century;
month, year, century, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +((%d%d)%d%d)[%-–]((%d%d)%a?)");
if 'Winter' ~= month and 'Summer' ~= month then return false end; -- 'month' can only be Summer or Winter
anchor_year=year..'—'..anchor_year; -- assemble anchor_year from both years
year2 = century..year2; -- add the century to year2 for comparisons
if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be consecutive years, left to right, earlier to later
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
month = get_english_season_number (month);
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d/%d%d%.?%a?$") then -- 18. special case "Summer/Winter year/year" (YYYY-YY); years separated by '/' {лето\зима\leto\zima\љето\ljeto yyyy/yy}
local century;
month, year, century, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +((%d%d)%d%d)/((%d%d)%.?%a?)");
if ('лето' ~= month and 'зима' ~= month) and ('leto' ~= month and 'zima' ~= month) and ('љето' ~= month and 'зима' ~= month) and ('ljeto' ~= month and 'zima' ~= month) then return false end; -- 'month' can only be Summer or Winter
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 consecutive 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);
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d[%-–—][1-9]%d%d%d%.?%a?$") then -- 19. special case "Summer/Winter year—year" (YYYY-YYYY) {лето\зима\leto\zima\љето\ljeto yyyy—yyyy}
month, year, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +(%d%d%d%d)[%-–—]((%d%d%d%d)%.?%a?)");
if ('лето' ~= month and 'зима' ~= month) and ('leto' ~= month and 'zima' ~= month) and ('љето' ~= month and 'зима' ~= month) and ('ljeto' ~= month and 'zima' ~= month) then return false end; -- 'month' can only be Summer or Winter
anchor_year=year..'—'..anchor_year; -- assemble anchor_year from both years
if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be consecutive years, left to right, earlier to later
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
month = get_season_number (month); -- for metadata
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d[%-–][1-9]%d%d%d%a?$") then -- 19. special case "Summer/Winter year–year" (YYYY-YYYY) {Summer\Winter yyyy–yyyy} /English/
month, year, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +(%d%d%d%d)[%-–]((%d%d%d%d)%a?)");
if 'Winter' ~= month and 'Summer' ~= month then return false end; -- 'month' can only be Summer or Winter
anchor_year=year..'—'..anchor_year; -- assemble anchor_year from both years
if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be consecutive 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_english_season_number (month); -- for metadata
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d/[1-9]%d%d%d%.?%a?$") then -- 20. special case "Summer/Winter year/year" (YYYY-YYYY); years separated by '/' {лето\зима\leto\zima\љето\ljeto yyyy/yyyy}
month, year, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +(%d%d%d%d)/((%d%d%d%d)%.?%a?)");
if ('лето' ~= month and 'зима' ~= month) and ('leto' ~= month and 'zima' ~= month) and ('љето' ~= month and 'зима' ~= month) and ('ljeto' ~= month and 'zima' ~= month) then return false end; -- 'month' can only be Summer or Winter
anchor_year=year..'/'..anchor_year; -- assemble anchor_year from both years
if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be consecutive years, left to right, earlier to later
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
month = get_season_number (month); -- for metadata
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d%.? +[%-–—] +%a+ +[1-9]%d%d%d%.?%a?$") then -- 21. month\season yyyy — month\season yyyy
month, year, month2, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +(%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) and 0 ~= get_season_number(month2) then -- both must be or season year, not mixed
month = get_season_number(month);
month2 = get_season_number(month2);
else
return false;
end
elseif mw.ustring.match(date_string, "^%a+ +[1-9]%d%d%d +[%-–] +%a+ +[1-9]%d%d%d%a?$") then -- 21. month\season yyyy – month\season yyyy [English]
month, year, month2, anchor_year, year2=mw.ustring.match(date_string, "(%a+) +(%d%d%d%d) +[%-–] +(%a+) +((%d%d%d%d)%a?)");
anchor_year=year..'—'..anchor_year; -- assemble anchor_year from both years
if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
if 0 ~= get_english_month_number(month) and 0 ~= get_english_month_number(month2) and is_valid_month_range_style(month, month2) then -- both must be month year, same month style
month = get_english_month_number(month);
month2 = get_english_month_number(month2);
elseif 0 ~= get_english_season_number(month) and 0 ~= get_english_season_number(month2) then -- both must be or season year, not mixed
month = get_english_season_number(month);
month2 = get_english_season_number(month2);
else
return false;
end
elseif mw.ustring.match(date_string, "^%a%a%a%. +[1-9]%d%d%d%.? +[%-–—] +%a%a%a%. +[1-9]%d%d%d%.?%a?$") then -- 22. mon. yyyy — mon. yyyy
month, year, month2, anchor_year, year2=mw.ustring.match(date_string, "(%a%a%a)%. +(%d%d%d%d)%.? +[%-–—] +(%a%a%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_dot_month_number (month) and 0 ~= get_dot_month_number (month2) and is_valid_month_range_style(month, month2) then -- both must be month year, same month style
month = get_dot_month_number (month);
month2 = get_dot_month_number (month2); -- both must be months, not mixed; 'dot-seasons' don't exist
else
return false;
end
elseif mw.ustring.match(date_string, "^%a+[%-–—]%a+ +[1-9]%d%d%d%.?%a?$") then -- 23. month\season—month\season yyyy
month, month2, anchor_year, year=mw.ustring.match(date_string, "(%a+)[%-–—](%a+)%s*((%d%d%d%d)%.?%a?)");
if (not is_valid_month_season_range(month, month2)) or (not is_valid_year(year)) then return false; end
if 0 ~= get_month_number(month) then -- determined to be a valid range so just check this one to know if month or season
month = get_month_number(month);
month2 = get_month_number(month2);
else
month = get_season_number(month);
month2 = get_season_number(month2);
end
year2=year;
elseif mw.ustring.match(date_string, "^%a+[%-–]%a+ +[1-9]%d%d%d%a?$") then -- 23. month\season—month\season yyyy /English/
month, month2, anchor_year, year=mw.ustring.match(date_string, "(%a+)[%-–](%a+)%s*((%d%d%d%d)%a?)");
if (not is_valid_english_month_season_range(month, month2)) or (not is_valid_year(year)) then return false; end
if 0 ~= get_english_month_number(month) then -- determined to be a valid range so just check this one to know if month or season
month = get_english_month_number(month);
month2 = get_english_month_number(month2);
else
month = get_english_season_number(month);
month2 = get_english_season_number(month2);
end
year2=year;
elseif mw.ustring.match(date_string, "^%a+/%a+ +[1-9]%d%d%d%.?%a?$") then -- 24. month\season/month\season yyyy
month, month2, anchor_year, year=mw.ustring.match(date_string, "(%a+)/(%a+)%s*((%d%d%d%d)%.?%a?)");
if (not is_valid_month_season_range(month, month2)) or (not is_valid_year(year)) then return false; end
if 0 ~= get_month_number(month) then -- determined to be a valid range so just check this one to know if month or season
if 1 ~= get_month_number(month2) - get_month_number(month) then return false; end -- must be consecutive months
month = get_month_number(month);
month2 = get_month_number(month2);
else
if 1 ~= get_season_number(month2) - get_season_number(month) then return false; end -- must be consecutive seasons
month = get_season_number(month);
month2 = get_season_number(month2);
end
year2=year;
elseif mw.ustring.match(date_string, "^%a%a%a%.[%-–—]%a%a%a%. +[1-9]%d%d%d%.?%a?$") then -- 25. mon.—mon. yyyy
month, month2, anchor_year, year=mw.ustring.match(date_string, "(%a%a%a)%.[%-–—](%a%a%a)%.%s*((%d%d%d%d)%.?%a?)");
if (not is_valid_dot_month_range(month, month2)) or (not is_valid_year(year)) then return false; end
if 0 ~= get_dot_month_number (month) then -- determined to be a valid range so just check this one to know if month or season
month = get_dot_month_number (month);
month2 = get_dot_month_number (month2);
end
year2=year;
elseif mw.ustring.match(date_string, "^%a%a%a%./%a%a%a%. +[1-9]%d%d%d%.?%a?$") then -- 26. mon./mon. yyyy
month, month2, anchor_year, year=mw.ustring.match(date_string, "(%a%a%a)%./(%a%a%a)%.%s*((%d%d%d%d)%.?%a?)");
if (not is_valid_dot_month_range(month, month2)) or (not is_valid_year(year)) then return false; end
if 0 ~= get_dot_month_number (month) then -- determined to be a valid range so just check this one to know if month or season
if 1 ~= get_dot_month_number (month2) - get_dot_month_number (month) then return false; end -- must be consecutive dot-months
month = get_dot_month_number (month);
month2 = get_dot_month_number (month2);
end
year2=year;
elseif mw.ustring.match(date_string, "^%a+%. +%d%d%d%d%.?%a?$") then --disabling long months of length three to be followed by dot
return false
elseif mw.ustring.match(date_string, "^%a+ +%d%d%d%d%.?%a?$") then -- 27. month\season yyyy
month, anchor_year, year=mw.ustring.match(date_string, "(%a+)%s*((%d%d%d%d)%.?%a?)");
if not is_valid_year(year) then return false; end
if not is_valid_month_or_season (month) and 0 == is_proper_name (month) then return false; end
if 0 ~= get_month_number(month) then -- determined to be a valid range so just check this one to know if month or season
month = get_month_number(month);
elseif 0 ~= get_season_number(month) then
month = get_season_number(month);
else
month = is_proper_name (month); -- must be proper name; not supported in COinS
end
elseif mw.ustring.match(date_string, "^%d?%d%. +%d%d%d%d%.?%a?$") then -- 27. (m)m. yyyy
month, anchor_year, year=mw.ustring.match(date_string, "(%d?%d)%.%s*((%d%d%d%d)%.?%a?)");
if not is_valid_year(year) or 12 < tonumber(month) or 1 > tonumber(month) then return false; end
elseif mw.ustring.match(date_string, "^%a+ +%d%d%d%d%a?$") then -- 27. month\season yyyy /English/
month, anchor_year, year=mw.ustring.match(date_string, "(%a+)%s*((%d%d%d%d)%a?)");
if not is_valid_year(year) then return false; end
if not is_valid_month_or_season (month) and 0 == is_proper_name (month) then return false; end
if 0 ~= get_english_month_number(month) then -- determined to be a valid range so just check this one to know if month or season
month = get_english_month_number(month);
elseif 0 ~= get_english_season_number(month) then
month = get_english_season_number(month);
else
month = is_proper_name (month); -- must be proper name; not supported in COinS
end
elseif mw.ustring.match(date_string, "^%a%a%a%. +%d%d%d%d%.?%a?$") then -- 28. mon. yyyy
month, anchor_year, year=mw.ustring.match(date_string, "(%a%a%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
if 0 ~= get_dot_month_number (month) then -- check this one to know if month or season (it is dot-month, we know, but it's not important because it can stay here as same as it is above, just deleted checking for seasons; don't delete "else" for "month = is_proper_name (month);" part)
month = get_dot_month_number (month);
else
month = is_proper_name (month); -- must be proper name; not supported in COinS
end
elseif mw.ustring.match(date_string, "^[1-9]%d%d%d?[%-–—][1-9]%d%d%d?%.?%a?$") then -- 29. (y)yyy—(y)yyy
year, anchor_year, year2=mw.ustring.match(date_string, "(%d%d%d%d?)[%-–—]((%d%d%d%d?)%.?%a?)");
anchor_year=year..'—'..anchor_year; -- assemble anchor year from both years
if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
elseif mw.ustring.match(date_string, "^[1-9]%d%d%d?/[1-9]%d%d%d?%.?%a?$") then -- 30. (y)yyy/(y)yyy
year, anchor_year, year2=mw.ustring.match(date_string, "(%d%d%d%d?)/((%d%d%d%d?)%.?%a?)");
anchor_year=year..'/'..anchor_year; -- assemble anchor year from both years
if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- left to right, earlier to later, not the same, CONSECUTIVE
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
elseif mw.ustring.match(date_string, "^[1-9]%d%d%d[%-–—]%d%d%.?%a?$") then -- 31. yyyy—yy
local century;
year, century, anchor_year, year2=mw.ustring.match(date_string, "((%d%d)%d%d)[%-–—]((%d%d)%.?%a?)");
anchor_year=year..'—'..anchor_year; -- assemble anchor year from both years
if 13 > tonumber(year2) then return false; end -- don't allow 2003-05 which might be May 2003
year2 = century..year2; -- add the century to year2 for comparisons
if tonumber(year) >= tonumber(year2) or 1 ~= tonumber(year2) - tonumber(year) then return false; end -- left to right, earlier to later, not the same
if not is_valid_year(year2) then return false; end -- no year farther in the future than next year
elseif mw.ustring.match(date_string, "^[1-9]%d%d%d/%d%d%.?%a?$") then -- 32. yyyy/yy
local century;
year, century, anchor_year, year2=mw.ustring.match(date_string, "((%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
year2 = century..year2; -- add the century to year2 for comparisons
if 1 ~= tonumber(year2) - tonumber(year) 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.match(date_string, "^[1-9]%d%d%d?%.?%a?$") then -- 33. (y)yyy
anchor_year, year=mw.ustring.match(date_string, "((%d%d%d%d?)%.?%a?)");
if false == is_valid_year(year) then
return false;
end
else
return false; -- date format not one of the MOS:DATE approved formats
end
if test_accessdate 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 result=true; -- check whole dates for validity; assume true because not all dates will go through this test
if 0 ~= year and 0 ~= month and 0 ~= day and 0 == year2 and 0 == month2 and 0 == day2 then -- YMD (simple whole date)
result=is_valid_date(year,month,day);
elseif 0 ~= year and 0 ~= month and 0 ~= day and 0 == year2 and 0 == month2 and 0 ~= day2 then -- YMD-d (day range)
result=is_valid_date(year,month,day);
result=result and is_valid_date(year,month,day2);
elseif 0 ~= year and 0 ~= month and 0 ~= day and 0 == year2 and 0 ~= month2 and 0 ~= day2 then -- YMD-md (day month range)
result=is_valid_date(year,month,day);
result=result and is_valid_date(year,month2,day2);
elseif 0 ~= year and 0 ~= month and 0 ~= day and 0 ~= year2 and 0 ~= month2 and 0 ~= day2 then -- YMD-ymd (day month year range)
result=is_valid_date(year,month,day);
result=result and is_valid_date(year2,month2,day2);
end
if false == result then return false; end
if nil ~= tCOinS_date then -- this table only passed into this function when testing |date= parameter values
make_COinS_date ({year=year, month=month, day=day, year2=year2, month2=month2, day2=day2}, tCOinS_date); -- make an ISO 8601 date string for COinS
end
return true, anchor_year; -- format is good and date string represents a real date
end
--[[--------------------------< D A T E S >--------------------------------------------------------------------
Cycle the date-holding parameters in passed table date_parameters_list through check_date() to check compliance with MOS:DATE. For all valid dates, check_date() returns true. The |date= parameter
test is unique; it is the only date holding parameter from which values for anchor_year (used in CITEREF identifiers) and COinS_date (used in the COinS) are derived. The |date= parameter is the
only date-holding parameter that is allowed to contain the no-date keywords "н. д.", "б. д.", "Н. Д.", "Б. Д.", "НД", "БД" (without quotes; abbr. no date, нема датума, без датума; both scripts).
Unlike most error messages created in this module, only one error message is created by this function. Because all of the date holding parameters are processed serially, a single error message is
created as the dates are tested.
In this part, we are also checking for "c. year", "cca. year" or "cca year" (without quotes; abbr. circa), so it can be enabled for use. "cca year" is the most optimal Serbian abbreviation form.
]]
local function dates(date_parameters_list, tCOinS_date)
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) then -- if the parameter has a value
if mw.ustring.match(v, "^c%. [1-9]%d%d%d?%.?%a?$") then -- special case for "c. year" or with or without CITEREF disambiguator - only |date= and |year=
local year = mw.ustring.match(v, "c%. ([1-9]%d%d%d?)%.?%a?"); -- get the year portion so it can be tested
if 'date'==k then
anchor_year, COinS_date = mw.ustring.match(v, "((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
good_date = is_valid_year(year);
end
elseif mw.ustring.match(v, "^cca%.? [1-9]%d%d%d?%.?%a?$") then -- special case for "cca(.) year" or with or without CITEREF disambiguator - only |date= and |year=
local year = mw.ustring.match(v, "cca%.? ([1-9]%d%d%d?)%.?%a?"); -- get the year portion so it can be tested
if 'date'==k then
anchor_year, COinS_date = mw.ustring.match(v, "((cca%.? [1-9]%d%d%d?)%.?%a?)"); -- anchor year and COinS_date only from |date= parameter
good_date = is_valid_year(year);
elseif 'year'==k then
good_date = is_valid_year(year);
end
elseif 'date'==k then -- if the parameter is |date=
if mw.ustring.match(v, "^н%. ?д%.%a?$") then --if |date=н. д. with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((н%. ?д%.)%a?)"); --no error when date parameter is set to no date
elseif mw.ustring.match(v, "^б%. ?д%.%a?$") then --if |date=б. д. with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((б%. ?д%.)%a?)"); --no error when date parameter is set to no date
elseif mw.ustring.match(v, "^Н%. ?Д%.%a?$") then --if |date=Н. Д. with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((Н%. ?Д%.)%a?)"); --no error when date parameter is set to no date
elseif mw.ustring.match(v, "^Б%. ?Д%.%a?$") then --if |date=Б. Д. with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((Б%. ?Д%.)%a?)"); --no error when date parameter is set to no date
elseif mw.ustring.match(v, "^НД%a?$") then --if |date=НД with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((НД)%a?)"); --no error when date parameter is set to no date
elseif mw.ustring.match(v, "^БД%a?$") then --if |date=БД with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((БД)%a?)"); --no error when date parameter is set to no date
elseif mw.ustring.match(v, "^n%.d%.%a?$") then --if |date=n.d. with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((n%.d%.)%a?)"); --no error when date parameter is set to no date
elseif mw.ustring.match(v, "^nd%a?$") then --if |date=nd with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((nd)%a?)"); --no error when date parameter is set to no date
else
good_date, anchor_year, COinS_date = check_date (v, tCOinS_date); -- go test the date
end
elseif 'year'==k then -- if the parameter is |year= it should hold only a year value
if mw.ustring.match(v, "^[1-9]%d%d%d?%.?%a?$") then -- if |year= 3 or 4 digits only with or without a CITEREF disambiguator
good_date, anchor_year, COinS_date = true, mw.ustring.match(v, "((%d+)%.?%a?)");
end
elseif 'access-date'==k then -- if the parameter is |date=
good_date = check_date (v, nil, true); -- go test the date; nil is a placeholder; true is the test_accessdate flag
elseif 'embargo'==k then -- if the parameter is |embargo=
good_date = check_date (v); -- go test the date
if true == good_date then -- if the date is a valid date
good_date, embargo_date = is_valid_embargo_date (v); -- is |embargo= date a single dmy, mdy, or ymd formatted date? yes:returns embargo; no: returns 9999
end
else -- any other date-holding parameter
good_date = check_date (v); -- go test the date
end
if false==good_date then -- assemble one error message so we don't add the tracking category multiple times
if is_set(error_message) then -- once we've added the first portion of the error message ...
error_message=error_message .. ", "; -- ... add a comma space separator
end
error_message=error_message .. "|" .. k .. "="; -- add the failed parameter
end
end
end
return anchor_year, embargo_date, error_message; -- and done
end
--[[--------------------------< Y E A R _ D A T E _ C H E C K >------------------------------------------------
Compare the value provided in |year= with the year value(s) provided in |date=. This function returns a numeric value:
0 - year value does not match the year value in date
1 - (default) year value matches the year value in date or one of the year values when date contains two years
2 - year value matches the year value in date when date is in the form YYYY-MM-DD and year is disambiguated (|year=YYYYx)
]]
local function year_date_check (year_string, date_string)
local year;
local date1;
local date2;
local result = 1; -- result of the test; assume that the test passes
year = mw.ustring.match(year_string, '(%d%d%d%d?)%.?');
if mw.ustring.match(date_string, '%d%d%d%d%-%d%d%-%d%d') and mw.ustring.match(year_string, '%d%d%d%d%.?%a') then --special case where both date and year are required YYYY-MM-DD and YYYYx
date1 = mw.ustring.match(date_string, '(%d%d%d%d)%.?');
year = mw.ustring.match(year_string, '(%d%d%d%d)%.?');
if year ~= date1 then
result = 0; -- years don't match
else
result = 2; -- years match; but because disambiguated, don't add to maint cat
end
elseif mw.ustring.match(date_string, "%d%d%d%d?.-%d%d%d%d?%.?") then -- any of the standard range formats of date with two three- or four-digit years
date1, date2 = mw.ustring.match(date_string, "(%d%d%d%d?).-(%d%d%d%d?)%.?");
if year ~= date1 and year ~= date2 then
result = 0;
end
elseif mw.ustring.match(date_string, "%d%d%d%d[%-–—]%d%d%.?") then -- YYYY-YY date ranges
local century;
date1, century, date2 = mw.ustring.match(date_string, "((%d%d)%d%d)[%-–—]+(%d%d)%.?");
date2 = century..date2; -- convert YY to YYYY
if year ~= date1 and year ~= date2 then
result = 0;
end
elseif mw.ustring.match(date_string, "%d%d%d%d?%.?") then -- any of the standard formats of date with one year
date1 = mw.ustring.match(date_string, "(%d%d%d%d?)%.?");
if year ~= date1 then
result = 0;
end
else
result = 0; -- no recognizable year in date
end
return result;
end
--[[-------------------------< R E F O R M A T T A B L E S >------------------------------------------------
These table are used exclusively for reformatting dates
]]
local source_patterns = { -- this table holds patterns that match allowed date formats used to extract date components
['dmy'] = '(%d%d?)%.?%s+(%a+)%s+(%d%d%d%d)%.?',
['mdy'] = '(%a+)%s+(%d%d?),%s+(%d%d%d%d)',
['ymd'] = '(%d%d%d%d)%-(%d%d)-(%d%d)',
}
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
['dmy'] = '%e %B %Y',
['mdy'] = '%B %e, %Y',
['ymd'] = '%F',
}
--[[-------------------------< G E T _ D M Y _ D A T E _ P A R T S >------------------------------------------
extracts year, month and day from DMY formatted date, places them in the source_date table, and returns.
]]
local function get_dmy_date_parts (date, source_date)
source_date.day, source_date.month, source_date.year = mw.ustring.match (date, source_patterns['dmy']); -- get date components as strings
source_date.month = get_month_number (source_date.month) or get_english_month_number (source_date.month); -- get month number
end
--[[-------------------------< G E T _ M D Y _ 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.
]]
local function get_mdy_date_parts (date, source_date)
source_date.month, source_date.day, source_date.year = mw.ustring.match (date, source_patterns['mdy']); -- get date components as strings
source_date.month = get_english_month_number (source_date.month); -- get month number
end
--[[-------------------------< G E T _ Y M D _ D A T E _ P A R T S >------------------------------------------
extracts year, month and day from YMD formatted date, places them in the source_date table, and returns.
]]
local function get_ymd_date_parts (date, source_date)
source_date.year, source_date.month, source_date.day = mw.ustring.match (date, source_patterns['ymd']); -- get date components as strings
end
--[[-------------------------< R E F O R M A T _ D A T E S >--------------------------------------------------
Reformats existing dates into the format specified by format and short.
Format is one of several keywords: dmy, dmy-all, mdy, mdy-all, ymd, ymd-all. The all version includes access- and
archive-dates; otherwise these dates are not reformatted. On sr.wiki will not use any mdy format (mdy, mdy-all).
Date ranges, season dates, proper name dates are not currently supported.
]]
local function reformat_dates (date_parameters_list, format, short)
local all = false; -- set to false to skip access- and archive-dates
local format_str;
local source_date = {};
if mw.ustring.match(format,'%a+%-all') then
format = mw.ustring.match(format,'(%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) 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
param_val = ''; -- set to empty string so we don't process this date
end
for source, pattern in pairs(source_patterns) do
if mw.ustring.match(param_val,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
return false; -- abandon reformatting
end
if short then
format_str = short_formats[format];
else
format_str = long_formats[format];
end
-- convert date and save;
date_parameters_list[param_name] = mw.text.trim (os.date (format_str, os.time(source_date))); -- strip leading space when single digit day and %e is first format
end
end
end
end
return true; -- declare success and done
end
--[[--------------------------< D A T E _ H Y P H E N _ T O _ D A S H >----------------------------------------
Loops through the list of date-holding parameters and converts any hyphen to mdash.
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_dash (date_parameters_list)
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 not param_val:match ('%d%d%d%d%-%d%d%-%d%d') then -- for those that are not ymd dates
param_val, n = mw.ustring.gsub (param_val, '[%-]', '—'); -- replace any hyphen with mdash
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
end
return result; -- so we know if
end
--[[--------------------------< D A T E _ N D A S H _ T O _ D A S H >----------------------------------------
Loops through the list of date-holding parameters and converts any ndash to mdash.
Called even if the cs1|2 template has date error(s) because user might use English month ranges etc. or might not.
Not called only if ISO date format, as ISO date format does not have a ndash.
Modifies the date_parameters_list and returns true if hyphens are replaced, else returns false.
]]
local function date_ndash_to_dash (date_parameters_list)
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 not param_val:match ('%d%d%d%d%-%d%d%-%d%d') then -- for those that are not ymd dates
param_val, n = mw.ustring.gsub (param_val, '[–]', '—'); -- replace any hyphen with mdash
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
end
return result; -- so we know if
end
--[[--------------------------< R E M O V E _ T R A I L I N G _ D O T >----------------------------------------
Loops through the list of date-holding parameters and removes any trailing dot that may or may not be entered after year number.
Generally speaking, date (alone) is incorrect without a traling dot but two dots or dot and right bracket are incorrect too.
While references used to display with templates, it was not possible to allow correct "1. 1. 2016." but only "1. 1. 2016" (example)
in order not to have date displayed as "(1. 1. 2016.)" but as correct "(1. 1. 2016)", or not as "1. 1. 2016.." but as "1. 1. 2016."
Called even if the cs1|2 template has date error(s) because user might specify dot (to comply alone-date writing norm) or might not
(because he knows it should/will not get displayed because ".)" or ".." is incorrect).
Not called only if ISO date format, as ISO date format does not have a trailing dot.
Modifies the date_parameters_list and returns true if trailing dots are replaced, else returns false.
]]
local function remove_trailing_dot (date_parameters_list)
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 not param_val:match ('%d%d%d%d%-%d%d%-%d%d') then -- for those that are not ymd dates as ISO "2005-05-05." does not exist
param_val, n = mw.ustring.gsub (param_val, '%.$', ''); -- replace any trailing dot with empty string
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
end
return result; -- so we know if
end
--[[--------------------------< R E P L A C E _ E N G L I S H _ M O N T H S _ W I T H _ S E R B I A N >----------------------------------------
Loops through the list of date-holding parameters and translates any English month that may or may not be entered by user into Serbian format.
Not called if the cs1|2 template has any date errors.
Modifies the date_parameters_list and returns true if months are translated, else returns false.
]]
local function translate_english_months (date_parameters_list)
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 not param_val:match ('%d%d%d%d%-%d%d%-%d%d') then -- for those that are not ymd dates as ISO dates do not contain text
param_val, n = mw.ustring.gsub (param_val, 'January', '1.'); -- replace for long month 1
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'February', '2.'); -- replace for long month 2
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'March', '3.'); -- replace for long month 3
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'April', '4.'); -- replace for long month 4
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'May', '5.'); -- replace for long month 5
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'June', '6.'); -- replace for long month 6
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'July', '7.'); -- replace for long month 7
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'August', '8.'); -- replace for long month 8
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'September', '9.'); -- replace for long month 9
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'October', '10.'); -- replace for long month 10
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'November', '11.'); -- replace for long month 11
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'December', '12.'); -- replace for long month 12
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Jan', '1.'); -- replace for short month 1
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Feb', '2.'); -- replace for short month 2
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Mar', '3.'); -- replace for short month 3
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Apr', '4.'); -- replace for short month 4
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'May', '5.'); -- replace for short month 5
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Jun', '6.'); -- replace for short month 6
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Jul', '7.'); -- replace for short month 7
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Aug', '8.'); -- replace for short month 8
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Sep', '9.'); -- replace for short month 9
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Oct', '10.'); -- replace for short month 10
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Nov', '11.'); -- replace for short month 11
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Dec', '12.'); -- replace for short month 12
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Winter', 'зима'); -- replace for season 4
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Spring', 'пролеће'); -- replace for season 1
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Summer', 'лето'); -- replace for season 2
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Fall', 'јесен'); -- replace for season 3
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Autumn', 'јесен'); -- replace for season 3
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, 'Christmas', 'Божић'); -- replace for only proper name
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '(%d%d?%.) (%d%d?) — (%d%d?%.) (%d%d?), (%d%d%d%d?)', '%2. %1 — %4. %3 %5'); -- reformat 1a
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '(%d%d?%.) (%d%d?), (%d%d%d%d?)', '%2. %1 %3'); -- reformat 1b
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '(%d%d?) (%d%d?%.) — (%d%d?) (%d%d?%.) (%d%d%d%d?)', '%1. %2 — %3. %4 %5'); -- reformat 2a
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '(%d%d?) (%d%d?%.) (%d%d%d%d?)', '%1. %2 %3'); -- reformat 2b
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '(%d%d?%.) (%d%d?—%d%d?), (%d%d%d%d?)', '%2. %1 %3'); -- reformat 3
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
if mw.ustring.match (param_val, '^%d%d?%. %d%d%d%d$') then -- for those that are number-month and year
param_val, n = mw.ustring.gsub (param_val, '^1%. (%d%d%d%d)', 'јануар %1'); -- replace for month 1
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^2%. (%d%d%d%d)', 'фебруар %1'); -- replace for month 2
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^3%. (%d%d%d%d)', 'март %1'); -- replace for month 3
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^4%. (%d%d%d%d)', 'април %1'); -- replace for month 4
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^5%. (%d%d%d%d)', 'мај %1'); -- replace for month 5
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^6%. (%d%d%d%d)', 'јун %1'); -- replace for month 6
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^7%. (%d%d%d%d)', 'јул %1'); -- replace for month 7
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^8%. (%d%d%d%d)', 'август %1'); -- replace for month 8
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^9%. (%d%d%d%d)', 'септембар %1'); -- replace for month 9
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^10%. (%d%d%d%d)', 'октобар %1'); -- replace for month 10
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^11%. (%d%d%d%d)', 'новембар %1'); -- replace for month 11
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
param_val, n = mw.ustring.gsub (param_val, '^12%. (%d%d%d%d)', 'децембар %1'); -- replace for month 12
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
if mw.ustring.match (param_val, '%d%d?%.%d%d?%. %d%d%d%d') then -- for those that are number-day, number-month without space before and year
param_val, n = mw.ustring.gsub (param_val, '(%d%d?%.)(%d%d?%. %d%d%d%d)', '%1 %2'); -- replace
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
if mw.ustring.match (param_val, '%d%d?%. %d%d?%.%d%d%d%d') then -- for those that are number-day, number-month and year without space before
param_val, n = mw.ustring.gsub (param_val, '(%d%d?%. %d%d?%.)(%d%d%d%d)', '%1 %2'); -- replace
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
if mw.ustring.match (param_val, '%d%d?%.%d%d?%.%d%d%d%d') then -- for those that are number-day, number-month without space before and year without space before
param_val, n = mw.ustring.gsub (param_val, '(%d%d?%.)(%d%d?%.)(%d%d%d%d)', '%1 %2 %3'); -- replace
if 0 ~= n then
date_parameters_list[param_name] = param_val; -- update the list
result = true;
end
end
end
return result; -- so we know if
end
--[[--------------------------< S E T _ S E L E C T E D _ M O D U L E S >--------------------------------------
Sets local imported functions table to same (live or sandbox) as that used by the other modules.
]]
local function set_selected_modules (utilities_page_ptr)
is_set = utilities_page_ptr.is_set; -- import functions from select Module:Citation/CS1/Utilities module
in_array = utilities_page_ptr.in_array; -- import functions from select Module:Citation/CS1/Utilities module
end
return { -- return exported functions
dates = dates,
year_date_check = year_date_check,
reformat_dates = reformat_dates,
date_hyphen_to_dash = date_hyphen_to_dash,
date_ndash_to_dash = date_ndash_to_dash,
remove_trailing_dot = remove_trailing_dot,
translate_english_months = translate_english_months,
set_selected_modules = set_selected_modules
}