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Module:Citation/CS1/Date validation and Module:Citation/CS1/Date validation/sandbox: Difference between pages

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sync from sandbox;
 
if we select this, double check is not needed
 
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--[[
History of changes since last sync: 2024-08-17

2025-05-25: make |date=Jan 0500, |date=0999–1000, |date=090–100 error, accept |date=Jan 500.

2025-05-25: make |date=2000-10-01|year=2010 error


]]


--[[--------------------------< 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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local patterns_t = {
local patterns_t = {
-- year-initial numerical year-month-day
-- year-initial numerical year-month-day
['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'},
['ymd'] = {'^([1-9]%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'},
-- month-initial: month day, year
-- month-initial: month day, year
['Mdy'] = {'^(%D-) +([1-9]%d?), +((%d%d%d%d?)%a?)$', 'm', 'd', 'a', 'y'},
['Mdy'] = {'^(%D-) +([1-9]%d?), +(([1-9]%d%d%d?)%a?)$', 'm', 'd', 'a', 'y'},
-- month-initial day range: month day–day, year; days are separated by endash
-- month-initial day range: month day–day, year; days are separated by endash
['Md-dy'] = {'^(%D-) +([1-9]%d?)[%-–]([1-9]%d?), +((%d%d%d%d)%a?)$', 'm', 'd', 'd2', 'a', 'y'},
['Md-dy'] = {'^(%D-) +([1-9]%d?)[%-–]([1-9]%d?), +(([1-9]%d%d%d?)%a?)$', 'm', 'd', 'd2', 'a', 'y'},
-- day-initial: day month year
-- day-initial: day month year
['dMy'] = {'^([1-9]%d?) +(%D-) +((%d%d%d%d?)%a?)$', 'd', 'm', 'a', 'y'},
['dMy'] = {'^([1-9]%d?) +(%D-) +(([1-9]%d%d%d?)%a?)$', 'd', 'm', 'a', 'y'},
-- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed; not supported at en.wiki
-- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed; not supported at en.wiki
-- ['yMd'] = {'^((%d%d%d%d?)%a?) +(%D-) +(%d%d?)$', 'a', 'y', 'm', 'd'},
-- ['yMd'] = {'^(([1-9]%d%d%d?)%a?) +(%D-) +(%d%d?)$', 'a', 'y', 'm', 'd'},
-- day-range-initial: day–day month year; days are separated by endash
-- day-range-initial: day–day month year; days are separated by endash
['d-dMy'] = {'^([1-9]%d?)[%-–]([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'd2', 'm', 'a', 'y'},
['d-dMy'] = {'^([1-9]%d?)[%-–]([1-9]%d?) +(%D-) +(([1-9]%d%d%d?)%a?)$', 'd', 'd2', 'm', 'a', 'y'},
-- day initial month-day-range: day month - day month year; uses spaced endash
-- day initial month-day-range: day month - day month year; uses spaced endash
['dM-dMy'] = {'^([1-9]%d?) +(%D-) +[%-–] +([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'm', 'd2', 'm2', 'a', 'y'},
['dM-dMy'] = {'^([1-9]%d?) +(%D-) +[%-–] +([1-9]%d?) +(%D-) +(([1-9]%d%d%d?)%a?)$', 'd', 'm', 'd2', 'm2', 'a', 'y'},
-- month initial month-day-range: month day – month day, year; uses spaced endash
-- month initial month-day-range: month day – month day, year; uses spaced endash
['Md-Mdy'] = {'^(%D-) +([1-9]%d?) +[%-–] +(%D-) +([1-9]%d?), +((%d%d%d%d)%a?)$','m', 'd', 'm2', 'd2', 'a', 'y'},
['Md-Mdy'] = {'^(%D-) +([1-9]%d?) +[%-–] +(%D-) +([1-9]%d?), +(([1-9]%d%d%d?)%a?)$','m', 'd', 'm2', 'd2', 'a', 'y'},
-- day initial month-day-year-range: day month year - day month year; uses spaced endash
-- day initial month-day-year-range: day month year - day month year; uses spaced endash
['dMy-dMy'] = {'^([1-9]%d?) +(%D-) +(%d%d%d%d) +[%-–] +([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'm', 'y', 'd2', 'm2', 'a', 'y2'},
['dMy-dMy'] = {'^([1-9]%d?) +(%D-) +([1-9]%d%d%d?) +[%-–] +([1-9]%d?) +(%D-) +(([1-9]%d%d%d?)%a?)$', 'd', 'm', 'y', 'd2', 'm2', 'a', 'y2'},
-- month initial month-day-year-range: month day, year – month day, year; uses spaced endash
-- month initial month-day-year-range: month day, year – month day, year; uses spaced endash
['Mdy-Mdy'] = {'^(%D-) +([1-9]%d?), +(%d%d%d%d) +[%-–] +(%D-) +([1-9]%d?), +((%d%d%d%d)%a?)$', 'm', 'd', 'y', 'm2', 'd2', 'a', 'y2'},
['Mdy-Mdy'] = {'^(%D-) +([1-9]%d?), +([1-9]%d%d%d?) +[%-–] +(%D-) +([1-9]%d?), +(([1-9]%d%d%d?)%a?)$', 'm', 'd', 'y', 'm2', 'd2', 'a', 'y2'},


-- these date formats cannot be converted, per se, but month name can be rendered short or long
-- these date formats cannot be converted, per se, but month name can be rendered short or long
-- month/season year - month/season year; separated by spaced endash
-- month/season year - month/season year; separated by spaced endash
['My-My'] = {'^(%D-) +(%d%d%d%d) +[%-–] +(%D-) +((%d%d%d%d)%a?)$', 'm', 'y', 'm2', 'a', 'y2'},
['My-My'] = {'^(%D-) +([1-9]%d%d%d?) +[%-–] +(%D-) +(([1-9]%d%d%d?)%a?)$', 'm', 'y', 'm2', 'a', 'y2'},
-- month/season range year; months separated by endash
-- month/season range year; months separated by endash
['M-My'] = {'^(%D-)[%-–](%D-) +((%d%d%d%d)%a?)$', 'm', 'm2', 'a', 'y'},
['M-My'] = {'^(%D-)[%-–](%D-) +(([1-9]%d%d%d?)%a?)$', 'm', 'm2', 'a', 'y'},
-- month/season year or proper-name year; quarter year when First Quarter YYYY etc.
-- month/season year or proper-name year; quarter year when First Quarter YYYY etc.
['My'] = {'^([^%d–]-) +((%d%d%d%d)%a?)$', 'm', 'a', 'y'}, -- this way because endash is a member of %D; %D- will match January–March 2019 when it shouldn't
['My'] = {'^([^%d–]-) +(([1-9]%d%d%d?)%a?)$', 'm', 'a', 'y'}, -- this way because endash is a member of %D; %D- will match January–March 2019 when it shouldn't


-- these date formats cannot be converted
-- these date formats cannot be converted
['Sy4-y2'] = {'^(%D-) +((%d%d)%d%d)[%-–]((%d%d)%a?)$'}, -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash
['Sy4-y2'] = {'^(%D-) +(([1-9]%d)%d%d)[%-–]((%d%d)%a?)$'}, -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash
['Sy-y'] = {'^(%D-) +(%d%d%d%d)[%-–]((%d%d%d%d)%a?)$'}, -- special case Winter/Summer year-year; year separated with unspaced endash
['Sy-y'] = {'^(%D-) +([1-9]%d%d%d?)[%-–](([1-9]%d%d%d?)%a?)$'}, -- special case Winter/Summer year-year; year separated with unspaced endash
['y-y'] = {'^(%d%d%d%d?)[%-–]((%d%d%d%d?)%a?)$'}, -- year range: YYY-YYY or YYY-YYYY or YYYY–YYYY; separated by unspaced endash; 100-9999
['y-y'] = {'^([1-9]%d%d%d?)[%-–](([1-9]%d%d%d?)%a?)$'}, -- 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?)$'}, -- year range: YYYY–YY; separated by unspaced endash
['y4-y2'] = {'^(([1-9]%d)%d%d)[%-–]((%d%d)%a?)$'}, -- year range: YYYY–YY; separated by unspaced endash
['y'] = {'^((%d%d%d%d?)%a?)$'}, -- year; here accept either YYY or YYYY
['y'] = {'^(([1-9]%d%d%d?)%a?)$'}, -- year; here accept either YYY or YYYY
}
}


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year = year_string:match ('(%d%d%d%d?)');
year = year_string:match ('(%d%d%d%d?)');


if date_string:match ('%d%d%d%d%-%d%d%-%d%d') and year_string:match ('%d%d%d%d%a') then --special case where both date and year are required YYYY-MM-DD and YYYYx
if date_string:match ('%d%d%d%d%-%d%d%-%d%d') then --special case where both date and year are required YYYY-MM-DD and YYYYx
date1 = date_string:match ('(%d%d%d%d)');
date1 = date_string:match ('(%d%d%d%d)');
year = year_string:match ('(%d%d%d%d)');
year = year_string:match ('(%d%d%d%d)');
if year ~= date1 then
if year ~= date1 then
result = 0; -- years don't match
result = 0; -- years don't match
elseif year_string:match ('%d%d%d%d%a') then
else
result = 2; -- years match; but because disambiguated, don't add to maint cat
result = 2; -- years match; but because disambiguated, don't add to maint cat
end
end
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