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Module:Citation/CS1/Date validation: Difference between revisions

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--[[--------------------------< F O R W A R D  D E C L A R A T I O N S >--------------------------------------
--[[--------------------------< F O R W A R D  D E C L A R A T I O N S >--------------------------------------
]]
]]
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return false; -- accessdate out of range
return false; -- accessdate out of range
end
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 |pmc-embargo-date= is
set, the editor intended to embargo a PMC but |pmc-embargo-date= 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
end


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Function gets current year from the server and compares it to year from a citation parameter.  Years more than one
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.
Special case for |pmc-embargo-date=: years more than two years in the future are not acceptable


]]
]]


local function is_valid_year (year)
local function is_valid_year (year, param)
if not is_set(year_limit) then
if not is_set (year_limit) then
year_limit = tonumber(os.date("%Y"))+1; -- global variable so we only have to fetch it once
year_limit = tonumber(os.date("%Y"))+1; -- global variable so we only have to fetch it once
end
end


year = tonumber (year) or lang_object:parseFormattedNumber (year); -- convert to numbers for the comparison;
year = tonumber (year) or lang_object:parseFormattedNumber (year); -- convert to number for the comparison
if year and (100 > year) then -- years less than 100 not supported
return false;
end
if 'pmc-embargo-date' == param then -- special case for |pmc-embargo-date=
return year and (year <= tonumber(os.date("%Y"))+2) or false; -- years more than two years in the future are not accepted
end
return year and (year <= year_limit) or false;
return year and (year <= year_limit) or false;
end
end
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]]
]]


local function is_valid_date (year, month, day)
local function is_valid_date (year, month, day, param)
local days_in_month = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
local days_in_month = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
local month_length;
local month_length;
if not is_valid_year(year) then -- no farther into the future than next year
if not is_valid_year (year, param) then -- no farther into the future than next year except |pmc-embargo-date= no more than two years in the future
return false;
return false;
end
end
month = tonumber(month); -- required for YYYY-MM-DD dates
month = tonumber (month); -- required for YYYY-MM-DD dates
if (2 == month) then -- if February
if (2 == month) then -- if February
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Months in a range are expected to have the same style: Jan–Mar or October–December but not February–Mar or Jul–August.  
Months in a range are expected to have the same style: Jan–Mar or October–December but not February–Mar or Jul–August.  
There is a special test for May because it can be either short or long form.
This function looks in cfg.date_names{} to see if both month names are listed in the long subtable or both are
 
listed in the short subtable. When both have the same style (both are listed in the same table), returns true; false else
Returns true when style for both months is the same


]]
]]


local function is_valid_month_range_style (month1, month2)
local function is_valid_month_range_style (month1, month2)
local len1 = month1:len();
if (cfg.date_names.en.long[month1] and cfg.date_names.en.long[month2]) or -- are both English names listed in the long subtable?
local len2 = month2:len();
(cfg.date_names.en.short[month1] and cfg.date_names.en.short[month2]) or -- are both English names listed in the short subtable?
if len1 == len2 then
(cfg.date_names['local'].long[month1] and cfg.date_names['local'].long[month2]) or -- are both local names listed in the long subtable?
return true; -- both months are short form so return true
(cfg.date_names['local'].short[month1] and cfg.date_names['local'].short[month2]) then -- are both local names listed in the short subtable?
elseif 'May' == month1 or 'May'== month2 then -- ToDo: I18N
return true;
return true; -- both months are long form so return true
elseif 3 == len1 or 3 == len2 then
return false; -- months are mixed form so return false
else
return true; -- both months are long form so return true
end
end
return false; -- names are mixed
end
end


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local date; -- one date or first date in a range
local date; -- one date or first date in a range
local date2 = ''; -- end of range date
local date2 = ''; -- end of range date
-- start temporary Julian / Gregorian calendar uncertainty detection
input.year = tonumber (input.year) or lang_object:parseFormattedNumber (input.year); -- language-aware tonumber()
local year = tonumber(input.year); -- this temporary code to determine the extent of sources dated to the Julian/Gregorian
input.year2 = tonumber (input.year2) or lang_object:parseFormattedNumber (input.year2); -- COinS dates are pseudo-ISO 8601 so convert to Arabic numerals
local month = tonumber(input.month); -- interstice 1 October 1582 – 1 January 1926
 
local day = tonumber (input.day);
if ((1582 == input.year) and (10 > tonumber(input.month))) or (1582 > input.year) then -- if a Julian calendar date
if (0 ~= day) and -- day must have a value for this to be a whole date
tCOinS_date.rftdate = tostring (input.year); -- &rft.date gets year only
(((1582 == year) and (10 <= month) and (12 >= month)) or -- any whole 1582 date from 1 October to 31 December or
return; -- done
((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
-- end temporary Julian / Gregorian calendar uncertainty detection
-- here for all forms of Gregorian dates
if 20 < tonumber (input.month) then -- if season, quarter, or proper-name 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; -- &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
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
date = string.format ('%.4d/%.4d', input.year, input.year2) -- assemble the date range
end
end
if 20 < tonumber(input.month) then -- if season or proper-name date
 
local season = {[24] = 'winter', [21] = 'spring', [22] = 'summer', [23] = 'fall', [33] = '1', [34] = '2', [35] = '3', [36] = '4', [98] = 'Easter', [99] = 'Christmas'}; -- seasons lowercase, no autumn; proper-names use title case
local season = {[24] = 'winter', [21] = 'spring', [22] = 'summer', [23] = 'fall', [33] = '1', [34] = '2', [35] = '3', [36] = '4', [98] = 'Easter', [99] = 'Christmas'}; -- seasons lowercase, no autumn; proper-names use title case
if 0 == input.month2 then -- single season date
if 0 == input.month2 then -- single season, quarter, or proper-name date
if 40 < tonumber(input.month) then
if 40 < tonumber(input.month) then
tCOinS_date.rftchron = season[input.month]; -- proper-name dates
tCOinS_date.rftchron = season[input.month]; -- proper-name date; used in journal metadata only
elseif 30 < tonumber(input.month) then
elseif 30 < tonumber(input.month) then
tCOinS_date.rftquarter = season[input.month]; -- quarters
tCOinS_date.rftquarter = season[input.month]; -- quarter date; used in journal metadata only
else
else
tCOinS_date.rftssn = season[input.month]; -- seasons
tCOinS_date.rftssn = season[input.month]; -- season date; used in journal metadata only
end
end
else -- season range with a second season specified
else -- season ranges are lumped into &rft.chron; &rft.ssn and &rft.quarter are left blank
if input.year ~= input.year2 then -- season year – season year range or season year–year
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
if 0~= input.month2 then
tCOinS_date.rftchron = string.format ('%s %s – %s %s', season[input.month], input.year, season[input.month2], input.year2); -- used in journal metadata only
tCOinS_date.rftchron = string.format ('%s %s – %s %s', season[input.month], input.year, season[input.month2], input.year2);
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
end
end
else -- season–season year range
tCOinS_date.rftchron = season[input.month] .. '–' .. season[input.month2]; -- season–season year range; used in journal metadata only
end
end
end
end
tCOinS_date.rftdate = date;
 
tCOinS_date.rftdate = tostring (date);
return; -- done
return; -- done
end
end
-- here for gregorian calendar dates
if 0 ~= input.day then
if 0 ~= input.day then
date = string.format ('%s-%.2d-%.2d', input.year, tonumber(input.month), tonumber(input.day)); -- whole date
date = string.format ('%s-%.2d-%.2d', input.year, tonumber(input.month), tonumber(input.day)); -- whole date
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--[[--------------------------< P A T T E R N S >--------------------------------------------------------------
--[[--------------------------< P A T T E R N S _ T >----------------------------------------------------------


this is the list of patterns for date formats that this module recognizes.  Approximately the first half of these
this is the list of patterns for date formats that this module recognizes.  Approximately the first half of these
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]]
]]


local patterns = {
local patterns_t = {
-- year-initial numerical year-month-day
-- year-initial numerical year-month-day
['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'},
['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'},
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['y-y'] = {'^(%d%d%d%d?)[%-–]((%d%d%d%d?)%a?)$'}, -- year range: YYY-YYY or YYY-YYYY or YYYY–YYYY; separated by unspaced endash; 100-9999
['y-y'] = {'^(%d%d%d%d?)[%-–]((%d%d%d%d?)%a?)$'}, -- 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?)$'}, -- year range: YYYY–YY; separated by unspaced endash
['y4-y2'] = {'^((%d%d)%d%d)[%-–]((%d%d)%a?)$'}, -- year range: YYYY–YY; separated by unspaced endash
['ymx'] = {'^(%d%d%d%d)%-(%d%d)%-XX$', 'y', 'm'}, -- edtf year-initial numerical year-month-XX
['y'] = {'^((%d%d%d%d?)%a?)$'}, -- year; here accept either YYY or YYYY
['y'] = {'^((%d%d%d%d?)%a?)$'}, -- year; here accept either YYY or YYYY
}
}
--[[--------------------------< 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 |pmc-embargo-date= is
set, the editor intended to embargo a PMC but |pmc-embargo-date= does not hold a single date.
]]
local function is_valid_embargo_date (v)
if v:match (patterns_t['ymd'][1]) or -- ymd
v:match (patterns_t['Mdy'][1]) or -- dmy
v:match (patterns_t['dMy'][1]) 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




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local coins_date;
local coins_date;


if date_string:match (patterns['ymd'][1]) then -- year-initial numerical year month day format
if date_string:match (patterns_t['ymd'][1]) then -- year-initial numerical year month day format
year, month, day = date_string:match (patterns['ymd'][1]);
year, month, day = date_string:match (patterns_t['ymd'][1]);
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
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;
anchor_year = year;
elseif date_string:match (patterns['ymx'][1]) then -- year-initial numerical year month edtf format
elseif mw.ustring.match(date_string, patterns_t['Mdy'][1]) then -- month-initial: month day, year
year, month = date_string:match (patterns['ymx'][1]);
month, day, anchor_year, year = mw.ustring.match(date_string, patterns_t['Mdy'][1]);
if 12 < tonumber(month) or 1 > tonumber(month) or 1582 > tonumber(year) or not is_valid_year(year) then return false; end -- month number not valid or not Gregorian calendar or future year
anchor_year = year;
 
elseif mw.ustring.match(date_string, patterns['Mdy'][1]) then -- month-initial: month day, year
month, day, anchor_year, year = mw.ustring.match(date_string, patterns['Mdy'][1]);
month = get_month_number (month);
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
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, patterns['Md-dy'][1]) then -- month-initial day range: month day–day, year; days are separated by endash
elseif mw.ustring.match(date_string, patterns_t['Md-dy'][1]) then -- month-initial day range: month day–day, year; days are separated by endash
month, day, day2, anchor_year, year = mw.ustring.match(date_string, patterns['Md-dy'][1]);
month, day, day2, anchor_year, year = mw.ustring.match(date_string, patterns_t['Md-dy'][1]);
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 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);
month = get_month_number (month);
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year2 = year;
year2 = year;


elseif mw.ustring.match(date_string, patterns['dMy'][1]) then -- day-initial: day month year
elseif mw.ustring.match(date_string, patterns_t['dMy'][1]) then -- day-initial: day month year
day, month, anchor_year, year = mw.ustring.match(date_string, patterns['dMy'][1]);
day, month, anchor_year, year = mw.ustring.match(date_string, patterns_t['dMy'][1]);
month = get_month_number (month);
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
if 0 == month then return false; end -- return false if month text isn't one of the twelve months


--[[ NOT supported at en.wiki
--[[ NOT supported at en.wiki
elseif mw.ustring.match(date_string, patterns['yMd'][1]) then -- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed
elseif mw.ustring.match(date_string, patterns_t['yMd'][1]) then -- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed
anchor_year, year, month, day = mw.ustring.match(date_string, patterns['yMd'][1]);
anchor_year, year, month, day = mw.ustring.match(date_string, patterns_t['yMd'][1]);
month = get_month_number (month);
month = get_month_number (month);
if 0 == month then return false; end -- return false if month text isn't one of the twelve months
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 ]]
-- end NOT supported at en.wiki ]]


elseif mw.ustring.match(date_string, patterns['d-dMy'][1]) then -- day-range-initial: day–day month year; days are separated by endash
elseif mw.ustring.match(date_string, patterns_t['d-dMy'][1]) then -- day-range-initial: day–day month year; days are separated by endash
day, day2, month, anchor_year, year = mw.ustring.match(date_string, patterns['d-dMy'][1]);
day, day2, month, anchor_year, year = mw.ustring.match(date_string, patterns_t['d-dMy'][1]);
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 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);
month = get_month_number (month);
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year2 = year;
year2 = year;


elseif mw.ustring.match(date_string, patterns['dM-dMy'][1]) then -- day initial month-day-range: day month - day month year; uses spaced endash
elseif mw.ustring.match(date_string, patterns_t['dM-dMy'][1]) then -- day initial month-day-range: day month - day month year; uses spaced endash
day, month, day2, month2, anchor_year, year = mw.ustring.match(date_string, patterns['dM-dMy'][1]);
day, month, day2, month2, anchor_year, year = mw.ustring.match(date_string, patterns_t['dM-dMy'][1]);
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;
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
month = get_month_number (month); -- for metadata
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year2 = year;
year2 = year;


elseif mw.ustring.match(date_string, patterns['Md-Mdy'][1]) then -- month initial month-day-range: month day – month day, year; uses spaced endash
elseif mw.ustring.match(date_string, patterns_t['Md-Mdy'][1]) then -- month initial month-day-range: month day – month day, year; uses spaced endash
month, day, month2, day2, anchor_year, year = mw.ustring.match(date_string, patterns['Md-Mdy'][1]);
month, day, month2, day2, anchor_year, year = mw.ustring.match(date_string, patterns_t['Md-Mdy'][1]);
if (not is_valid_month_season_range(month, month2, param)) or not is_valid_year(year) then return false; end
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
month = get_month_number (month); -- for metadata
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year2 = year;
year2 = year;


elseif mw.ustring.match(date_string, patterns['dMy-dMy'][1]) then -- day initial month-day-year-range: day month year - day month year; uses spaced endash
elseif mw.ustring.match(date_string, patterns_t['dMy-dMy'][1]) 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.match(date_string, patterns['dMy-dMy'][1]);
day, month, year, day2, month2, anchor_year, year2 = mw.ustring.match(date_string, patterns_t['dMy-dMy'][1]);
if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
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
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
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if 0 == month or 0 == month2 then return false; end -- both must be valid
if 0 == month or 0 == month2 then return false; end -- both must be valid


elseif mw.ustring.match(date_string, patterns['Mdy-Mdy'][1]) then -- month initial month-day-year-range: month day, year – month day, year; uses spaced endash
elseif mw.ustring.match(date_string, patterns_t['Mdy-Mdy'][1]) 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.match(date_string, patterns['Mdy-Mdy'][1]);
month, day, year, month2, day2, anchor_year, year2 = mw.ustring.match(date_string, patterns_t['Mdy-Mdy'][1]);
if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later
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
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
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if 0 == month or 0 == month2 then return false; end -- both must be valid
if 0 == month or 0 == month2 then return false; end -- both must be valid


elseif mw.ustring.match(date_string, patterns['Sy4-y2'][1]) then -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash
elseif mw.ustring.match(date_string, patterns_t['Sy4-y2'][1]) then -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash
local century;
local century;
month, year, century, anchor_year, year2 = mw.ustring.match(date_string, patterns['Sy4-y2'][1]);
month, year, century, anchor_year, year2 = mw.ustring.match(date_string, patterns_t['Sy4-y2'][1]);
if 'Winter' ~= month and 'Summer' ~= month then return false end; -- 'month' can only be Winter or Summer
if 'Winter' ~= month and 'Summer' ~= month then return false end; -- 'month' can only be Winter or Summer
anchor_year = year .. '–' .. anchor_year; -- assemble anchor_year from both years
anchor_year = year .. '–' .. anchor_year; -- assemble anchor_year from both years
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month = get_season_number(month, param);
month = get_season_number(month, param);


elseif mw.ustring.match(date_string, patterns['Sy-y'][1]) then -- special case Winter/Summer year-year; year separated with unspaced endash
elseif mw.ustring.match(date_string, patterns_t['Sy-y'][1]) then -- special case Winter/Summer year-year; year separated with unspaced endash
month, year, anchor_year, year2 = mw.ustring.match(date_string, patterns['Sy-y'][1]);
month, year, anchor_year, year2 = mw.ustring.match(date_string, patterns_t['Sy-y'][1]);
if 'Winter' ~= month and 'Summer' ~= month then return false end; -- 'month' can only be Winter or Summer
month = get_season_number (month, param); -- <month> can only be winter or summer; also for metadata
anchor_year = year .. '–' .. anchor_year; -- assemble anchor_year from both years
if (month ~= cfg.date_names['en'].season['Winter']) and (month ~= cfg.date_names['en'].season['Summer']) then
return false; -- not Summer or Winter; abandon
end
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 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
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.match(date_string, patterns['My-My'][1]) then -- month/season year - month/season year; separated by spaced endash
elseif mw.ustring.match(date_string, patterns_t['My-My'][1]) then -- month/season year - month/season year; separated by spaced endash
month, year, month2, anchor_year, year2 = mw.ustring.match(date_string, patterns['My-My'][1]);
month, year, month2, anchor_year, year2 = mw.ustring.match(date_string, patterns_t['My-My'][1]);
anchor_year = year .. '–' .. anchor_year; -- assemble anchor_year from both years
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 tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same
Line 596: Line 589:
end
end


elseif mw.ustring.match(date_string, patterns['M-My'][1]) then -- month/season range year; months separated by endash  
elseif mw.ustring.match(date_string, patterns_t['M-My'][1]) then -- month/season range year; months separated by endash  
month, month2, anchor_year, year = mw.ustring.match(date_string, patterns['M-My'][1]);
month, month2, anchor_year, year = mw.ustring.match(date_string, patterns_t['M-My'][1]);
if (not is_valid_month_season_range(month, month2, param)) or (not is_valid_year(year)) then return false; end
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
if 0 ~= get_month_number(month) then -- determined to be a valid range so just check this one to know if month or season
Line 609: Line 602:
year2 = year;
year2 = year;
elseif mw.ustring.match(date_string, patterns['My'][1]) then -- month/season/quarter/proper-name year
elseif mw.ustring.match(date_string, patterns_t['My'][1]) then -- month/season/quarter/proper-name year
month, anchor_year, year = mw.ustring.match(date_string, patterns['My'][1]);
month, anchor_year, year = mw.ustring.match(date_string, patterns_t['My'][1]);
if not is_valid_year(year) then return false; end
if not is_valid_year(year) then return false; end
month = get_element_number(month, param); -- get month season quarter proper-name number or nil
month = get_element_number(month, param); -- get month season quarter proper-name number or nil
if not month then return false; end -- not valid whatever it is
if not month then return false; end -- not valid whatever it is


elseif mw.ustring.match(date_string, patterns['y-y'][1]) then -- Year range: YYY-YYY or YYY-YYYY or YYYY–YYYY; separated by unspaced endash; 100-9999
elseif mw.ustring.match(date_string, patterns_t['y-y'][1]) then -- Year range: YYY-YYY or YYY-YYYY or YYYY–YYYY; separated by unspaced endash; 100-9999
year, anchor_year, year2 = mw.ustring.match(date_string, patterns['y-y'][1]);
year, anchor_year, year2 = mw.ustring.match(date_string, patterns_t['y-y'][1]);
anchor_year = year .. '–' .. anchor_year; -- assemble anchor year from both years
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 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 not is_valid_year(year2) then return false; end -- no year farther in the future than next year


elseif mw.ustring.match(date_string, patterns['y4-y2'][1]) then -- Year range: YYYY–YY; separated by unspaced endash
elseif mw.ustring.match(date_string, patterns_t['y4-y2'][1]) then -- Year range: YYYY–YY; separated by unspaced endash
local century;
local century;
year, century, anchor_year, year2 = mw.ustring.match(date_string, patterns['y4-y2'][1]);
year, century, anchor_year, year2 = mw.ustring.match(date_string, patterns_t['y4-y2'][1]);
anchor_year = year .. '–' .. anchor_year; -- assemble anchor year from both years
anchor_year = year .. '–' .. anchor_year; -- assemble anchor year from both years
if in_array (param, {'date', 'publication-date', 'year'}) then
add_prop_cat ('year_range_abbreviated');
end


if 13 > tonumber(year2) then return false; end -- don't allow 2003-05 which might be May 2003
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
year2 = century .. year2; -- add the century to year2 for comparisons
if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same
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 not is_valid_year(year2) then return false; end -- no year farther in the future than next year


elseif mw.ustring.match(date_string, patterns['y'][1]) then -- year; here accept either YYY or YYYY
if in_array (param, {'date', 'publication-date', 'year'}) then -- here when 'valid' abbreviated year range; if one of these parameters
anchor_year, year = mw.ustring.match(date_string, patterns['y'][1]);
add_prop_cat ('year-range-abbreviated'); -- add properties cat
end
 
elseif mw.ustring.match(date_string, patterns_t['y'][1]) then -- year; here accept either YYY or YYYY
anchor_year, year = mw.ustring.match(date_string, patterns_t['y'][1]);
if false == is_valid_year(year) then
if false == is_valid_year(year) then
return false;
return false;
Line 645: Line 638:
end
end


if 'access-date' == param then -- test accessdate here because we have numerical date parts
if param ~= 'date' then -- CITEREF disambiguation only allowed in |date=; |year= & |publication-date= promote to date
if anchor_year:match ('%l$') then
return false;
end
end
 
if 'access-date' == param then -- test access-date here because we have numerical date parts
if 0 ~= year and 0 ~= month and 0 ~= day and -- all parts of a single date required
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
0 == year2 and 0 == month2 and 0 == day2 then -- none of these; access-date must not be a range
if not is_valid_accessdate(year .. '-' .. month .. '-' .. day) then
if not is_valid_accessdate(year .. '-' .. month .. '-' .. day) then
return false; -- return false when accessdate out of bounds
return false; -- return false when access-date out of bounds
end
end
else
else
return false; -- return false when accessdate is a range of two dates
return false; -- return false when access-date is a range of two dates
end
end
 
if 'archive-date' == param then -- test archive-date here because we have numerical date parts
if not (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; archive-date must not be a range
return false; -- return false when archive-date is a range of two dates
end
end
end
end
Line 658: Line 664:
local result=true; -- check whole dates for validity; assume true because not all dates will go through this test
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)
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);
result = is_valid_date (year, month, day, param); -- <param> for |pmc-embargo-date=


elseif 0 ~= year and 0 ~= month and 0 ~= day and 0 == year2 and 0 == month2 and 0 ~= day2 then -- YMD-d (day range)
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 = is_valid_date (year, month, day);
result = result and is_valid_date(year, month, day2);
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)
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 = is_valid_date (year, month, day);
result = result and is_valid_date(year, month2, day2);
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)
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)
Line 723: Line 729:
good_date, anchor_year, COinS_date = true, v.val:match("((%d+)%a?)");
good_date, anchor_year, COinS_date = true, v.val:match("((%d+)%a?)");
end
end
elseif 'pmc-embargo-date' == k then -- if the parameter is |pmc-embargo-date=
elseif 'pmc-embargo-date' == k then -- if the parameter is |pmc-embargo-date=
good_date = check_date (v.val, k); -- go test the date
good_date = check_date (v.val, k); -- go test the date
if true == good_date then -- if the date is a valid date
if true == good_date then -- if the date is a valid date
good_date, embargo_date = is_valid_embargo_date (v.val); -- is |pmc-embargo-date= date a single dmy, mdy, or ymd formatted date? yes: returns embargo; no: returns 9999
good_date, embargo_date = is_valid_embargo_date (v.val); -- is |pmc-embargo-date= date a single dmy, mdy, or ymd formatted date? yes: returns embargo date; no: returns 9999
end
end
else -- any other date-holding parameter
else -- any other date-holding parameter
Line 737: Line 743:
end
end
return anchor_year, embargo_date; -- and done
return anchor_year, embargo_date; -- and done
end
--[[--------------------------< Y E A R _ C H E C K >----------------------------------------------------------
Temporary function to test |year= for acceptable values:
YYY, YYYY, year-only ranges, their circa forms, with or without CITEREF disambiguators.
When |year= holds some form of date that is not one of these year-only dates, emit a maintenance message.
This function necessary because many non-cs1|2 templates have a |year= parameter so cirrus searches are more-or-
less useless
]]
local function year_check (year)
year = year:gsub ('c%. *', ''); -- remove circa annotation (if present) before testing <year>
for _, index in ipairs ({'y-y', 'y4-y2', 'y'}) do -- spin through these indexes into patterns_t
if mw.ustring.match (year, patterns_t[index][1]) then
return; -- if a match then |year= holds a valid 'year'
end
end
set_message ('maint_year'); -- if here, |year= value is not an accepted value; add a maint cat
end
end


Line 747: Line 778:
2 - year value matches the year value in date when date is in the form YYYY-MM-DD and year is disambiguated (|year=YYYYx)
2 - year value matches the year value in date when date is in the form YYYY-MM-DD and year is disambiguated (|year=YYYYx)


the numernic value in <result> determines the 'output' if any from this function:
the numeric value in <result> determines the 'output' if any from this function:
0 – adds error message to error_list sequence table
0 – adds error message to error_list sequence table
1 – adds maint cat
1 – adds maint cat
Line 810: Line 841:
format string used by string.format()
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
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]
from mw.ustring.match() for the various date parts specified by  patterns_t[pattern_idx][1]


Items in patterns{} have the general form:
Items in patterns_t{} have the general form:
['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'}, where:
['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'}, where:
['ymd'] is pattern_idx
['ymd'] is pattern_idx
patterns['ymd'][1] is the match pattern with captures for mw.ustring.match()
patterns_t['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_t['ymd'][2] is an indicator letter identifying the content of the first capture
patterns['ymd'][3] ... the second capture etc.
patterns_t['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
when a pattern matches a date, the captures are loaded into table t{} in capture order using the idemtifier
Line 826: Line 857:
format_param set to the desired format.  This function loads table t{} as described and then calls string.format()
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
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..
to the capture identifier letters specified by patterns_t[pattern_idx][format_param][n] where n is 2..


]]
]]
Line 891: Line 922:
local function reformatter (date, pattern_idx, format_param, mon_len)
local function reformatter (date, pattern_idx, format_param, mon_len)
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
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
return; -- not in this set of date format patterns then not a reformattable date
return; -- not in this set of date format patterns_t then not a reformattable date
end
end
Line 902: Line 933:
end
end


-- yMd is not supported at en.wiki; if yMd is supported at your wiki, uncomment the next line
-- yMd is not supported at en.wiki; when yMd is supported at your wiki, uncomment the next line
-- if 'yMd' == format_param and in_array (pattern_idx, {'yMd', 'Md-dy', 'd-dMy', 'dM-dMy', 'Md-Mdy', 'dMy-dMy', 'Mdy-Mdy'}) then -- these formats not convertable; yMd not supported at en.wiki
-- if 'yMd' == format_param and in_array (pattern_idx, {'yMd', 'Md-dy', 'd-dMy', 'dM-dMy', 'Md-Mdy', 'dMy-dMy', 'Mdy-Mdy'}) then -- these formats not convertable; yMd not supported at en.wiki
-- if yMd is supported at your wiki, remove or comment-out the next line
if 'yMd' == format_param then -- yMd not supported at en.wiki; when yMd is supported at your wiki, remove or comment-out this line
if 'yMd' == format_param then -- yMd not supported at en.wiki
return; -- not a reformattable date
return; -- not a reformattable date
end
end
local c1, c2, c3, c4, c5, c6, c7; -- these hold the captures specified in patterns[pattern_idx][1]
local c1, c2, c3, c4, c5, c6, c7; -- these hold the captures specified in patterns_t[pattern_idx][1]
c1, c2, c3, c4, c5, c6, c7 = mw.ustring.match (date, patterns[pattern_idx][1]); -- get the captures
c1, c2, c3, c4, c5, c6, c7 = mw.ustring.match (date, patterns_t[pattern_idx][1]); -- get the captures


local t = { -- table that holds k/v pairs of date parts from the captures and patterns[pattern_idx][2..]
local t = { -- table that holds k/v pairs of date parts from the captures and patterns_t[pattern_idx][2..]
[patterns[pattern_idx][2]] = c1; -- at minimum there is always one capture with a matching indicator letter
[patterns_t[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_t[pattern_idx][3] or 'x'] = c2; -- patterns_t 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_t[pattern_idx][4] or 'x'] = c3; -- where there is no capture, there is no indicator letter so n in patterns_t[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_t[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_t[pattern_idx][6] or 'x'] = c5;
[patterns[pattern_idx][7] or 'x'] = c6;
[patterns_t[pattern_idx][7] or 'x'] = c6;
[patterns[pattern_idx][8] or 'x'] = c7;
[patterns_t[pattern_idx][8] or 'x'] = c7;
};
};


if t.a then -- if this date has an anchor year capture
if t.a then -- if this date has an anchor year capture (all convertable date formats except ymd)
t.y = t.a; -- use the anchor year capture when reassembling the date
if t.y2 then -- for year range date formats
t.y2 = t.a; -- use the anchor year capture when reassembling the date
else -- here for single date formats (except ymd)
t.y = t.a; -- use the anchor year capture when reassembling the date
end
end
end


if tonumber(t.m) then -- if raw month is a number (converting from ymd)
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
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
t.m = cfg.date_names['inv_local_short'][tonumber(t.m)]; -- convert it to a month name
else
else
t.m = cfg.date_names['inv_local_l'][tonumber(t.m)]; -- convert it to a month name
t.m = cfg.date_names['inv_local_long'][tonumber(t.m)]; -- convert it to a month name
end
end
t.d = t.d:gsub ('0(%d)', '%1'); -- strip leading '0' from day if present
t.d = t.d:gsub ('0(%d)', '%1'); -- strip leading '0' from day if present
elseif 'ymd' == format_param then -- when converting to ymd
elseif 'ymd' == format_param then -- when converting to ymd
t.y = t.y:gsub ('%a', ''); -- strip CITREF disambiguator if present; anchor year already known so process can proceed
t.y = t.y:gsub ('%a', ''); -- strip CITREF disambiguator if present; anchor year already known so process can proceed; TODO: maint message?
if 1582 > tonumber (t.y) then -- ymd format dates not allowed before 1582
if 1582 > tonumber (t.y) then -- ymd format dates not allowed before 1582
return;
return;
Line 945: Line 979:
t[mon] = get_month_number (t[mon]); -- get the month number for this month (is length agnostic)
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
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
t[mon] = (('s' == mon_len) and cfg.date_names['inv_local_short'][t[mon]]) or cfg.date_names['inv_local_long'][t[mon]]; -- fetch month name according to length
end
end
end
end
Line 1,015: Line 1,049:
if is_set (param_val.val) then -- if the parameter has a value
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
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
for pattern_idx, pattern in pairs (patterns_t) do
if mw.ustring.match (param_val.val, pattern[1]) then
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
if all and in_array (param_name, {'access-date', 'archive-date'}) then -- if this date is an access- or archive-date
Line 1,026: Line 1,060:
date_parameters_list[param_name].val = new_date; -- update date in date list
date_parameters_list[param_name].val = new_date; -- update date in date list
result = true; -- and announce that changes have been made
result = true; -- and announce that changes have been made
break;
end
end
end -- if
end -- if
Line 1,032: Line 1,067:
end -- if
end -- if
end -- for
end -- for
return result; -- declare boolean result and done
return result; -- declare boolean result and done
end
end


Line 1,050: Line 1,085:
for param_name, param_val in pairs(date_parameters_list) do -- for each date-holding parameter in the list
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) and
if is_set (param_val.val) and
not mw.ustring.match (param_val.val, patterns.ymd[1]) then -- for those that are not ymd dates (ustring because here digits may not be Western)
not mw.ustring.match (param_val.val, patterns_t.ymd[1]) 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
param_val.val, n = param_val.val:gsub ('%-', '–'); -- replace any hyphen with ndash
if 0 ~= n then
if 0 ~= n then
Line 1,059: Line 1,094:
end
end
return result; -- so we know if any hyphens were replaced
return result; -- so we know if any hyphens were replaced
end
--[[--------------------------< E D T F _ T R A N S F O R M >--------------------------------------------------
Loops through the list of date-holding parameters and converts any EDTF formatted dates to MOS compliant dates.
Only YYY-MM-XX supported at this time. Not called if the cs1|2 template has any date errors.
must be done before reformat_dates() and before date_hyphen_to_dash()
Modifies the date_parameters_list and returns true if transformation is performed, else returns false.
]]
local function edtf_transform (date_parameters_list)
local result = false;
local source_date = {};
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) and param_val.val:match (patterns.ymx[1]) then -- if parameter is set and is an EDTF dates
source_date.year, source_date.month = param_val.val:match (patterns.ymx[1]); -- get year and month number
source_date.day = 1; -- required by os.time()
date_parameters_list[param_name].val = mw.text.trim (os.date ('%B %Y', os.time (source_date)));
result = true;
end
end
return result; -- so we know if a transform was done
end
end


Line 1,091: Line 1,099:
--[[-------------------------< D A T E _ N A M E _ X L A T E >------------------------------------------------
--[[-------------------------< D A T E _ N A M E _ X L A T E >------------------------------------------------


Attempts to translate English month names to local-language month names using names supplied by MediaWiki's
Attempts to translate English date names to local-language date names using names supplied by MediaWiki's
date parser function.  This is simple name-for-name replacement and may not work for all languages.
date parser function.  This is simple name-for-name replacement and may not work for all languages.


Line 1,105: Line 1,113:
local date;
local date;
local sources_t = {
{cfg.date_names.en.long, cfg.date_names.inv_local_long}, -- for translating long English month names to long local month names
{cfg.date_names.en.short, cfg.date_names.inv_local_short}, -- short month names
{cfg.date_names.en.quarter, cfg.date_names.inv_local_quarter}, -- quarter date names
{cfg.date_names.en.season, cfg.date_names.inv_local_season}, -- season date nam
{cfg.date_names.en.named, cfg.date_names.inv_local_named}, -- named dates
}
local function is_xlateable (month) -- local function to get local date name that replaces existing English-language date name
for _, date_names_t in ipairs (sources_t) do -- for each sequence table in date_names_t
if date_names_t[1][month] then -- if date name is English month (long or short), quarter, season or named and
if date_names_t[2][date_names_t[1][month]] then -- if there is a matching local date name
return date_names_t[2][date_names_t[1][month]]; -- return the local date name
end
end
end
end
for param_name, param_val in pairs(date_parameters_list) do -- for each date-holding parameter in the list
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 is_set(param_val.val) then -- if the parameter has a value
date = param_val.val;
date = param_val.val;
for month in mw.ustring.gmatch (date, '%a+') do -- iterate through all dates in the date (single date or date range)
for month in mw.ustring.gmatch (date, '[%a ]+') do -- iterate through all date names in the date (single date or date range)
if cfg.date_names.en.long[month] then
month = mw.text.trim (month); -- this because quarterly dates contain whitespace
mode = 'F'; -- English name is long so use long local name
xlate = is_xlateable (month); -- get translate <month>; returns translation or nil
elseif cfg.date_names.en.short[month] then
mode = 'M'; -- English name is short so use short local name
if xlate then
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 = mw.ustring.gsub (date, month, xlate); -- replace the English with the translation
date_parameters_list[param_name].val = date; -- save the translated date
date_parameters_list[param_name].val = date; -- save the translated date
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cfg = cfg_table_ptr; -- import tables from selected Module:Citation/CS1/Configuration
cfg = cfg_table_ptr; -- import tables from selected Module:Citation/CS1/Configuration
end
--[[--------------------------< A R C H I V E _ D A T E _ C H E C K >------------------------------------------
Compare value in |archive-date= with the timestamp in Wayback machine urls.  Emits an error message with suggested
date from the |archive-url= timestamp in an appropriate format when the value in |archive-date= does not match
the timestamp.
this function never called when any date in a cs1|2 template has errors
error message suggests new |archive-date= value in an appropriate format specified by <df>.  <df> is either
|df= or cfg.global_df in that order.  If <df> is nil, suggested date has format from |archive-date=.  There is
a caveat: when |df=dmy or |df=mdy, the reformatter leaves |access-date= and |archive-date= formats as they are.
The error message suggested date is passed to the formatter as YYYY-MM-DD so when |df=dmy or |df=mdy, the format
is not changed.
]]
local function archive_date_check (archive_date, archive_url_timestamp, df)
local archive_date_format = 'dmy-y'; -- holds the date format of date in |archive-date; default to ymd; 'dmy' used here to spoof reformat_dates()
for _, v_t in ipairs ({{'dMy', 'dmy-all'}, {'Mdy', 'mdy-all'}}) do -- is |archive-date= format dmy or mdy?
if archive_date:match (patterns_t[v_t[1]][1]) then -- does the pattern match?
archive_date_format = cfg.keywords_xlate[v_t[2]]; -- get appropriate |df= supported keyword from the i18n translator table
break;
end
end
local dates_t = {};
dates_t['archive-date'] = {val=archive_date, name=''}; -- setup to call reformat_dates(); never called when errors so <name> unset as not needed
reformat_dates (dates_t, 'dmy-y'); -- reformat |archive-date= to ymd; 'dmy' used here to spoof reformat_dates()
local archive_url_date = archive_url_timestamp:gsub ('(%d%d%d%d)(%d%d)(%d%d)%d*', '%1-%2-%3'); -- make ymd format date from timestamp
if dates_t['archive-date'].val == archive_url_date then -- are the two dates the same
return; -- yes, done
else
dates_t['archive-date'] = {val=archive_url_date, name=''}; -- setup to call reformat_dates() with the timestamp date
reformat_dates (dates_t, df or archive_date_format); -- reformat timestamp to format specified by <df> or format used in |archive-date=
archive_url_date = dates_t['archive-date'].val;
set_message ('err_archive_date_url_ts_mismatch', archive_url_date); -- emit an error message
end
end
end


Line 1,159: Line 1,221:


return { -- return exported functions
return { -- return exported functions
archive_date_check = archive_date_check,
date_hyphen_to_dash = date_hyphen_to_dash,
date_name_xlate = date_name_xlate,
dates = dates,
dates = dates,
reformat_dates = reformat_dates,
set_selected_modules = set_selected_modules,
year_check = year_check,
year_date_check = year_date_check,
year_date_check = year_date_check,
reformat_dates = reformat_dates,
date_hyphen_to_dash = date_hyphen_to_dash,
date_name_xlate = date_name_xlate,
edtf_transform = edtf_transform,
set_selected_modules = set_selected_modules
}
}
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