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[o]" accesskey="o"> Ingia</a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Tovuti"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">Module:Citation/CS1/Date validation</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Makala hii inapatikana kwa lugha hii tu. 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vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Mandhari</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">hamishia kwenye mwambaa upande</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">ficha</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Kutoka Wikipedia, kamusi elezo huru</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><div class="subpages">< <bdi dir="ltr"><a href="/wiki/Module:Citation/CS1" title="Module:Citation/CS1">Module:Citation/CS1</a></bdi></div></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="sw" dir="ltr">Documentation for this module may be created at <a href="/w/index.php?title=Module:Citation/CS1/Date_validation/doc&action=edit&redlink=1" class="new" title="Module:Citation/CS1/Date validation/doc (bado haujaandikwa)">Module:Citation/CS1/Date validation/doc</a> <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr mw-highlight-lines" dir="ltr"><pre><a href="#L-1"></a>--[[--------------------------< F O R W A R D D E C L A R A T I O N S >-------------------------------------- <a href="#L-2"></a>]] <a href="#L-3"></a> <a href="#L-4"></a>local add_prop_cat, is_set, in_array, set_message, substitute, wrap_style; -- imported functions from selected Module:Citation/CS1/Utilities <a href="#L-5"></a>local cfg; -- table of tables imported from selected Module:Citation/CS1/Configuration <a href="#L-6"></a> <a href="#L-7"></a> <a href="#L-8"></a>--[[--------------------------< F I L E - S C O P E D E C L A R A T I O N S >-------------------------------- <a href="#L-9"></a> <a href="#L-10"></a>File-scope variables are declared here <a href="#L-11"></a> <a href="#L-12"></a>]] <a href="#L-13"></a> <a href="#L-14"></a>local lang_object = mw.getContentLanguage(); -- used by is_valid_accessdate(), is_valid_year(), date_name_xlate(); TODO: move to ~/Configuration? <a href="#L-15"></a>local year_limit; -- used by is_valid_year() <a href="#L-16"></a> <a href="#L-17"></a> <a href="#L-18"></a>--[=[----------------------------------------------------------------- <a href="#L-19"></a> <a href="#L-20"></a>returns true if: <a href="#L-21"></a> Wikipedia start date <= accessdate < today + 2 days <a href="#L-22"></a> <a href="#L-23"></a>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) <a href="#L-24"></a>accessdate is the date provided in |access-date= at time 00:00:00 UTC <a href="#L-25"></a>today is the current date at time 00:00:00 UTC plus 48 hours <a href="#L-26"></a> if today is 2015-01-01T00:00:00 then <a href="#L-27"></a> adding 24 hours gives 2015-01-02T00:00:00 – one second more than today <a href="#L-28"></a> adding 24 hours gives 2015-01-03T00:00:00 – one second more than tomorrow <a href="#L-29"></a> <a href="#L-30"></a>This function does not work if it is fed month names for languages other than English. Wikimedia #time: parser <a href="#L-31"></a>apparently doesn't understand non-English date month names. This function will always return false when the date <a href="#L-32"></a>contains a non-English month name because good1 is false after the call to lang.formatDate(). To get around that <a href="#L-33"></a>call this function with YYYY-MM-DD format dates. <a href="#L-34"></a> <a href="#L-35"></a>]=] <a href="#L-36"></a> <a href="#L-37"></a>local function is_valid_accessdate (accessdate) <a href="#L-38"></a> local good1, good2; <a href="#L-39"></a> local access_ts, tomorrow_ts; -- to hold Unix time stamps representing the dates <a href="#L-40"></a> <a href="#L-41"></a> good1, access_ts = pcall (lang_object.formatDate, lang_object, 'U', accessdate ); -- convert accessdate value to Unix timestamp <a href="#L-42"></a> good2, tomorrow_ts = pcall (lang_object.formatDate, lang_object, 'U', 'today + 2 days' ); -- today midnight + 2 days is one second more than all day tomorrow <a href="#L-43"></a> <a href="#L-44"></a> if good1 and good2 then -- lang.formatDate() returns a timestamp in the local script which which tonumber() may not understand <a href="#L-45"></a> access_ts = tonumber (access_ts) or lang_object:parseFormattedNumber (access_ts); -- convert to numbers for the comparison; <a href="#L-46"></a> tomorrow_ts = tonumber (tomorrow_ts) or lang_object:parseFormattedNumber (tomorrow_ts); <a href="#L-47"></a> else <a href="#L-48"></a> return false; -- one or both failed to convert to Unix time stamp <a href="#L-49"></a> end <a href="#L-50"></a> <a href="#L-51"></a> if 979516800 <= access_ts and access_ts < tomorrow_ts then -- Wikipedia start date <= accessdate < tomorrow's date <a href="#L-52"></a> return true; <a href="#L-53"></a> else <a href="#L-54"></a> return false; -- accessdate out of range <a href="#L-55"></a> end <a href="#L-56"></a>end <a href="#L-57"></a> <a href="#L-58"></a> <a href="#L-59"></a>--[[--------------------------< G E T _ M O N T H _ N U M B E R >---------------------------------------------- <a href="#L-60"></a> <a href="#L-61"></a>returns a number according to the month in a date: 1 for January, etc. Capitalization and spelling must be correct. <a href="#L-62"></a>If not a valid month, returns 0 <a href="#L-63"></a> <a href="#L-64"></a>]] <a href="#L-65"></a> <a href="#L-66"></a>local function get_month_number (month) <a href="#L-67"></a> return cfg.date_names['local'].long[month] or cfg.date_names['local'].short[month] or -- look for local names first <a href="#L-68"></a> cfg.date_names['en'].long[month] or cfg.date_names['en'].short[month] or -- failing that, look for English names <a href="#L-69"></a> 0; -- not a recognized month name <a href="#L-70"></a>end <a href="#L-71"></a> <a href="#L-72"></a> <a href="#L-73"></a>--[[--------------------------< G E T _ S E A S O N _ N U M B E R >-------------------------------------------- <a href="#L-74"></a> <a href="#L-75"></a>returns a number according to the sequence of seasons in a year: 21 for Spring, etc. Capitalization and spelling <a href="#L-76"></a>must be correct. If not a valid season, returns 0. <a href="#L-77"></a> 21-24 = Spring, Summer, Autumn, Winter, independent of “Hemisphere” <a href="#L-78"></a> <a href="#L-79"></a>returns 0 when <param> is not |date= <a href="#L-80"></a> <a href="#L-81"></a>Season numbering is defined by Extended Date/Time Format (EDTF) specification (https://www.loc.gov/standards/datetime/) <a href="#L-82"></a>which became part of ISO 8601 in 2019. See '§Sub-year groupings'. The standard defines various divisions using <a href="#L-83"></a>numbers 21-41. cs1|2 only supports generic seasons. EDTF does support the distinction between north and south <a href="#L-84"></a>hemisphere seasons but cs1|2 has no way to make that distinction. <a href="#L-85"></a> <a href="#L-86"></a>These additional divisions not currently supported: <a href="#L-87"></a> 25-28 = Spring - Northern Hemisphere, Summer- Northern Hemisphere, Autumn - Northern Hemisphere, Winter - Northern Hemisphere <a href="#L-88"></a> 29-32 = Spring – Southern Hemisphere, Summer– Southern Hemisphere, Autumn – Southern Hemisphere, Winter - Southern Hemisphere <a href="#L-89"></a> 33-36 = Quarter 1, Quarter 2, Quarter 3, Quarter 4 (3 months each) <a href="#L-90"></a> 37-39 = Quadrimester 1, Quadrimester 2, Quadrimester 3 (4 months each) <a href="#L-91"></a> 40-41 = Semestral 1, Semestral-2 (6 months each) <a href="#L-92"></a> <a href="#L-93"></a>]] <a href="#L-94"></a> <a href="#L-95"></a>local function get_season_number (season, param) <a href="#L-96"></a> if 'date' ~= param then <a href="#L-97"></a> return 0; -- season dates only supported by |date= <a href="#L-98"></a> end <a href="#L-99"></a> return cfg.date_names['local'].season[season] or -- look for local names first <a href="#L-100"></a> cfg.date_names['en'].season[season] or -- failing that, look for English names <a href="#L-101"></a> 0; -- not a recognized season name <a href="#L-102"></a>end <a href="#L-103"></a> <a href="#L-104"></a> <a href="#L-105"></a>--[[--------------------------< G E T _ Q U A R T E R _ N U M B E R >------------------------------------------ <a href="#L-106"></a> <a href="#L-107"></a>returns a number according to the sequence of quarters in a year: 33 for first quarter, etc. Capitalization and spelling <a href="#L-108"></a>must be correct. If not a valid quarter, returns 0. <a href="#L-109"></a> 33-36 = Quarter 1, Quarter 2, Quarter 3, Quarter 4 (3 months each) <a href="#L-110"></a> <a href="#L-111"></a>returns 0 when <param> is not |date= <a href="#L-112"></a> <a href="#L-113"></a>Quarter numbering is defined by Extended Date/Time Format (EDTF) specification (https://www.loc.gov/standards/datetime/) <a href="#L-114"></a>which became part of ISO 8601 in 2019. See '§Sub-year groupings'. The standard defines various divisions using <a href="#L-115"></a>numbers 21-41. cs1|2 only supports generic seasons and quarters. <a href="#L-116"></a> <a href="#L-117"></a>These additional divisions not currently supported: <a href="#L-118"></a> 37-39 = Quadrimester 1, Quadrimester 2, Quadrimester 3 (4 months each) <a href="#L-119"></a> 40-41 = Semestral 1, Semestral-2 (6 months each) <a href="#L-120"></a> <a href="#L-121"></a>]] <a href="#L-122"></a> <a href="#L-123"></a>local function get_quarter_number (quarter, param) <a href="#L-124"></a> if 'date' ~= param then <a href="#L-125"></a> return 0; -- quarter dates only supported by |date= <a href="#L-126"></a> end <a href="#L-127"></a> quarter = mw.ustring.gsub (quarter, ' +', ' '); -- special case replace multiple space chars with a single space char <a href="#L-128"></a> return cfg.date_names['local'].quarter[quarter] or -- look for local names first <a href="#L-129"></a> cfg.date_names['en'].quarter[quarter] or -- failing that, look for English names <a href="#L-130"></a> 0; -- not a recognized quarter name <a href="#L-131"></a>end <a href="#L-132"></a> <a href="#L-133"></a> <a href="#L-134"></a>--[[--------------------------< G E T _ P R O P E R _ N A M E _ N U M B E R >---------------------------------- <a href="#L-135"></a> <a href="#L-136"></a>returns a non-zero number if date contains a recognized proper-name. Capitalization and spelling must be correct. <a href="#L-137"></a> <a href="#L-138"></a>returns 0 when <param> is not |date= <a href="#L-139"></a> <a href="#L-140"></a>]] <a href="#L-141"></a> <a href="#L-142"></a>local function get_proper_name_number (name, param) <a href="#L-143"></a> if 'date' ~= param then <a href="#L-144"></a> return 0; -- proper-name dates only supported by |date= <a href="#L-145"></a> end <a href="#L-146"></a> return cfg.date_names['local'].named[name] or -- look for local names dates first <a href="#L-147"></a> cfg.date_names['en'].named[name] or -- failing that, look for English names <a href="#L-148"></a> 0; -- not a recognized named date <a href="#L-149"></a>end <a href="#L-150"></a> <a href="#L-151"></a> <a href="#L-152"></a>--[[--------------------------< G E T _ E L E M E N T _ N U M B E R <------------------------------------------ <a href="#L-153"></a> <a href="#L-154"></a>returns true if month or season or quarter or proper name is valid (properly spelled, capitalized, abbreviated) <a href="#L-155"></a> <a href="#L-156"></a>]] <a href="#L-157"></a> <a href="#L-158"></a>local function get_element_number (element, param) <a href="#L-159"></a> local num; <a href="#L-160"></a> <a href="#L-161"></a> local funcs = {get_month_number, get_season_number, get_quarter_number, get_proper_name_number}; -- list of functions to execute in order <a href="#L-162"></a> <a href="#L-163"></a> for _, func in ipairs (funcs) do -- spin through the function list <a href="#L-164"></a> num = func (element, param); -- call the function and get the returned number <a href="#L-165"></a> if 0 ~= num then -- non-zero when valid month season quarter <a href="#L-166"></a> return num; -- return that number <a href="#L-167"></a> end <a href="#L-168"></a> end <a href="#L-169"></a> return nil; -- not valid <a href="#L-170"></a>end <a href="#L-171"></a> <a href="#L-172"></a> <a href="#L-173"></a>--[[------------------------------------------------------------------------------ <a href="#L-174"></a> <a href="#L-175"></a>Function gets current year from the server and compares it to year from a citation parameter. Years more than one <a href="#L-176"></a>year in the future are not acceptable. <a href="#L-177"></a> <a href="#L-178"></a>Special case for |pmc-embargo-date=: years more than two years in the future are not acceptable <a href="#L-179"></a> <a href="#L-180"></a>]] <a href="#L-181"></a> <a href="#L-182"></a>local function is_valid_year (year, param) <a href="#L-183"></a> if not is_set (year_limit) then <a href="#L-184"></a> year_limit = tonumber(os.date("%Y"))+1; -- global variable so we only have to fetch it once <a href="#L-185"></a> end <a href="#L-186"></a> <a href="#L-187"></a> year = tonumber (year) or lang_object:parseFormattedNumber (year); -- convert to number for the comparison <a href="#L-188"></a> if year and (100 > year) then -- years less than 100 not supported <a href="#L-189"></a> return false; <a href="#L-190"></a> end <a href="#L-191"></a> <a href="#L-192"></a> if 'pmc-embargo-date' == param then -- special case for |pmc-embargo-date= <a href="#L-193"></a> return year and (year <= tonumber(os.date("%Y"))+2) or false; -- years more than two years in the future are not accepted <a href="#L-194"></a> end <a href="#L-195"></a> return year and (year <= year_limit) or false; <a href="#L-196"></a>end <a href="#L-197"></a> <a href="#L-198"></a> <a href="#L-199"></a>--[[------------------------------------------------------------------------------ <a href="#L-200"></a> <a href="#L-201"></a>Returns true if day is less than or equal to the number of days in month and year is no farther into the future <a href="#L-202"></a>than next year; else returns false. <a href="#L-203"></a> <a href="#L-204"></a>Assumes Julian calendar prior to year 1582 and Gregorian calendar thereafter. Accounts for Julian calendar leap <a href="#L-205"></a>years before 1582 and Gregorian leap years after 1582. Where the two calendars overlap (1582 to approximately <a href="#L-206"></a>1923) dates are assumed to be Gregorian. <a href="#L-207"></a> <a href="#L-208"></a>]] <a href="#L-209"></a> <a href="#L-210"></a>local function is_valid_date (year, month, day, param) <a href="#L-211"></a>local days_in_month = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; <a href="#L-212"></a>local month_length; <a href="#L-213"></a> 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 <a href="#L-214"></a> return false; <a href="#L-215"></a> end <a href="#L-216"></a> <a href="#L-217"></a> month = tonumber (month); -- required for YYYY-MM-DD dates <a href="#L-218"></a> <a href="#L-219"></a> if (2 == month) then -- if February <a href="#L-220"></a> month_length = 28; -- then 28 days unless <a href="#L-221"></a> if 1582 > tonumber(year) then -- Julian calendar <a href="#L-222"></a> if 0 == (year%4) then -- is a leap year? <a href="#L-223"></a> month_length = 29; -- if leap year then 29 days in February <a href="#L-224"></a> end <a href="#L-225"></a> else -- Gregorian calendar <a href="#L-226"></a> if (0 == (year%4) and (0 ~= (year%100) or 0 == (year%400))) then -- is a leap year? <a href="#L-227"></a> month_length = 29; -- if leap year then 29 days in February <a href="#L-228"></a> end <a href="#L-229"></a> end <a href="#L-230"></a> else <a href="#L-231"></a> month_length = days_in_month[month]; <a href="#L-232"></a> end <a href="#L-233"></a> <a href="#L-234"></a> if tonumber (day) > month_length then <a href="#L-235"></a> return false; <a href="#L-236"></a> end <a href="#L-237"></a> return true; <a href="#L-238"></a>end <a href="#L-239"></a> <a href="#L-240"></a> <a href="#L-241"></a>--[[---------------------------------------------------- <a href="#L-242"></a> <a href="#L-243"></a>Months in a range are expected to have the same style: Jan–Mar or October–December but not February–Mar or Jul–August. <a href="#L-244"></a>This function looks in cfg.date_names{} to see if both month names are listed in the long subtable or both are <a href="#L-245"></a>listed in the short subtable. When both have the same style (both are listed in the same table), returns true; false else <a href="#L-246"></a> <a href="#L-247"></a>]] <a href="#L-248"></a> <a href="#L-249"></a>local function is_valid_month_range_style (month1, month2) <a href="#L-250"></a> if (cfg.date_names.en.long[month1] and cfg.date_names.en.long[month2]) or -- are both English names listed in the long subtable? <a href="#L-251"></a> (cfg.date_names.en.short[month1] and cfg.date_names.en.short[month2]) or -- are both English names listed in the short subtable? <a href="#L-252"></a> (cfg.date_names['local'].long[month1] and cfg.date_names['local'].long[month2]) or -- are both local names listed in the long subtable? <a href="#L-253"></a> (cfg.date_names['local'].short[month1] and cfg.date_names['local'].short[month2]) then -- are both local names listed in the short subtable? <a href="#L-254"></a> return true; <a href="#L-255"></a> end <a href="#L-256"></a> return false; -- names are mixed <a href="#L-257"></a>end <a href="#L-258"></a> <a href="#L-259"></a> <a href="#L-260"></a>--[[-------------------------------------------------- <a href="#L-261"></a> <a href="#L-262"></a>Check a pair of months or seasons to see if both are valid members of a month or season pair. <a href="#L-263"></a> <a href="#L-264"></a>Month pairs are expected to be left to right, earliest to latest in time. <a href="#L-265"></a> <a href="#L-266"></a>All season ranges are accepted as valid because there are publishers out there who have published a Summer–Spring YYYY issue, hence treat as ok <a href="#L-267"></a> <a href="#L-268"></a>]] <a href="#L-269"></a> <a href="#L-270"></a>local function is_valid_month_season_range(range_start, range_end, param) <a href="#L-271"></a> local range_start_number = get_month_number (range_start); <a href="#L-272"></a> local range_end_number; <a href="#L-273"></a> <a href="#L-274"></a> if 0 == range_start_number then -- is this a month range? <a href="#L-275"></a> range_start_number = get_season_number (range_start, param); -- not a month; is it a season? get start season number <a href="#L-276"></a> range_end_number = get_season_number (range_end, param); -- get end season number <a href="#L-277"></a> <a href="#L-278"></a> if (0 ~= range_start_number) and (0 ~= range_end_number) and (range_start_number ~= range_end_number) then <a href="#L-279"></a> return true; -- any season pairing is accepted except when both are the same <a href="#L-280"></a> end <a href="#L-281"></a> return false; -- range_start and/or range_end is not a season <a href="#L-282"></a> end <a href="#L-283"></a> -- here when range_start is a month <a href="#L-284"></a> range_end_number = get_month_number (range_end); -- get end month number <a href="#L-285"></a> if range_start_number < range_end_number and -- range_start is a month; does range_start precede range_end? <a href="#L-286"></a> is_valid_month_range_style (range_start, range_end) then -- do months have the same style? <a href="#L-287"></a> return true; -- proper order and same style <a href="#L-288"></a> end <a href="#L-289"></a> return false; -- range_start month number is greater than or equal to range end number; or range end isn't a month <a href="#L-290"></a>end <a href="#L-291"></a> <a href="#L-292"></a> <a href="#L-293"></a>--[[--------------------------< M A K E _ C O I N S _ D A T E >------------------------------------------------ <a href="#L-294"></a> <a href="#L-295"></a>This function receives a table of date parts for one or two dates and an empty table reference declared in <a href="#L-296"></a>Module:Citation/CS1. The function is called only for |date= parameters and only if the |date=<value> is <a href="#L-297"></a>determined to be a valid date format. The question of what to do with invalid date formats is not answered here. <a href="#L-298"></a> <a href="#L-299"></a>The date parts in the input table are converted to an ISO 8601 conforming date string: <a href="#L-300"></a> single whole dates: yyyy-mm-dd <a href="#L-301"></a> month and year dates: yyyy-mm <a href="#L-302"></a> year dates: yyyy <a href="#L-303"></a> ranges: yyyy-mm-dd/yyyy-mm-dd <a href="#L-304"></a> yyyy-mm/yyyy-mm <a href="#L-305"></a> yyyy/yyyy <a href="#L-306"></a> <a href="#L-307"></a>Dates in the Julian calendar are reduced to year or year/year so that we don't have to do calendar conversion from <a href="#L-308"></a>Julian to Proleptic Gregorian. <a href="#L-309"></a> <a href="#L-310"></a>The input table has: <a href="#L-311"></a> year, year2 – always present; if before 1582, ignore months and days if present <a href="#L-312"></a> month, month2 – 0 if not provided, 1-12 for months, 21-24 for seasons; 99 Christmas <a href="#L-313"></a> day, day2 – 0 if not provided, 1-31 for days <a href="#L-314"></a> <a href="#L-315"></a>the output table receives: <a href="#L-316"></a> rftdate: an ISO 8601 formatted date <a href="#L-317"></a> rftchron: a free-form version of the date, usually without year which is in rftdate (season ranges and proper-name dates) <a href="#L-318"></a> rftssn: one of four season keywords: winter, spring, summer, fall (lowercase) <a href="#L-319"></a> rftquarter: one of four values: 1, 2, 3, 4 <a href="#L-320"></a> <a href="#L-321"></a>]] <a href="#L-322"></a> <a href="#L-323"></a>local function make_COinS_date (input, tCOinS_date) <a href="#L-324"></a> local date; -- one date or first date in a range <a href="#L-325"></a> local date2 = ''; -- end of range date <a href="#L-326"></a> input.year = tonumber (input.year) or lang_object:parseFormattedNumber (input.year); -- language-aware tonumber() <a href="#L-327"></a> input.year2 = tonumber (input.year2) or lang_object:parseFormattedNumber (input.year2); -- COinS dates are pseudo-ISO 8601 so convert to Arabic numerals <a href="#L-328"></a> <a href="#L-329"></a> if ((1582 == input.year) and (10 > tonumber(input.month))) or (1582 > input.year) then -- if a Julian calendar date <a href="#L-330"></a> tCOinS_date.rftdate = tostring (input.year); -- &rft.date gets year only <a href="#L-331"></a> return; -- done <a href="#L-332"></a> end <a href="#L-333"></a> -- here for all forms of Gregorian dates <a href="#L-334"></a> if 20 < tonumber (input.month) then -- if season, quarter, or proper-name date <a href="#L-335"></a> date = input.year; -- &rft.date gets year only <a href="#L-336"></a> 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 <a href="#L-337"></a> date = string.format ('%.4d/%.4d', input.year, input.year2) -- assemble the date range <a href="#L-338"></a> end <a href="#L-339"></a> <a href="#L-340"></a> 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 <a href="#L-341"></a> if 0 == input.month2 then -- single season, quarter, or proper-name date <a href="#L-342"></a> if 40 < tonumber(input.month) then <a href="#L-343"></a> tCOinS_date.rftchron = season[input.month]; -- proper-name date; used in journal metadata only <a href="#L-344"></a> elseif 30 < tonumber(input.month) then <a href="#L-345"></a> tCOinS_date.rftquarter = season[input.month]; -- quarter date; used in journal metadata only <a href="#L-346"></a> else <a href="#L-347"></a> tCOinS_date.rftssn = season[input.month]; -- season date; used in journal metadata only <a href="#L-348"></a> end <a href="#L-349"></a> else -- season ranges are lumped into &rft.chron; &rft.ssn and &rft.quarter are left blank <a href="#L-350"></a> if input.year ~= input.year2 then -- season year – season year range or season year–year <a href="#L-351"></a> if 0 ~= input.month2 then <a href="#L-352"></a> tCOinS_date.rftchron = string.format ('%s %s – %s %s', season[input.month], input.year, season[input.month2], input.year2); -- used in journal metadata only <a href="#L-353"></a> end <a href="#L-354"></a> else -- season–season year range <a href="#L-355"></a> tCOinS_date.rftchron = season[input.month] .. '–' .. season[input.month2]; -- season–season year range; used in journal metadata only <a href="#L-356"></a> end <a href="#L-357"></a> end <a href="#L-358"></a> <a href="#L-359"></a> tCOinS_date.rftdate = tostring (date); <a href="#L-360"></a> return; -- done <a href="#L-361"></a> end <a href="#L-362"></a> -- here for gregorian calendar dates <a href="#L-363"></a> if 0 ~= input.day then <a href="#L-364"></a> date = string.format ('%s-%.2d-%.2d', input.year, tonumber(input.month), tonumber(input.day)); -- whole date <a href="#L-365"></a> elseif 0 ~= input.month then <a href="#L-366"></a> date = string.format ('%s-%.2d', input.year, tonumber(input.month)); -- year and month <a href="#L-367"></a> else <a href="#L-368"></a> date = string.format ('%s', input.year); -- just year <a href="#L-369"></a> end <a href="#L-370"></a> <a href="#L-371"></a> if 0 ~= input.year2 then <a href="#L-372"></a> if 0 ~= input.day2 then <a href="#L-373"></a> date2 = string.format ('/%s-%.2d-%.2d', input.year2, tonumber(input.month2), tonumber(input.day2)); -- whole date <a href="#L-374"></a> elseif 0 ~= input.month2 then <a href="#L-375"></a> date2 = string.format ('/%s-%.2d', input.year2, tonumber(input.month2)); -- year and month <a href="#L-376"></a> else <a href="#L-377"></a> date2 = string.format ('/%s', input.year2); -- just year <a href="#L-378"></a> end <a href="#L-379"></a> end <a href="#L-380"></a> <a href="#L-381"></a> tCOinS_date.rftdate = date .. date2; -- date2 has the '/' separator <a href="#L-382"></a> return; <a href="#L-383"></a>end <a href="#L-384"></a> <a href="#L-385"></a> <a href="#L-386"></a>--[[---------------------------------------------------------------------------------------- <a href="#L-387"></a> <a href="#L-388"></a>this is the list of patterns for date formats that this module recognizes. Approximately the first half of these <a href="#L-389"></a>patterns represent formats that might be reformatted into another format. Those that might be reformatted have <a href="#L-390"></a>'indicator' letters that identify the content of the matching capture: 'd' (day), 'm' (month), 'a' (anchor year), <a href="#L-391"></a>'y' (year); second day, month, year have a '2' suffix. <a href="#L-392"></a> <a href="#L-393"></a>These patterns are used for both date validation and for reformatting. This table should not be moved to ~/Configuration <a href="#L-394"></a>because changes to this table require changes to check_date() and to reformatter() and reformat_date() <a href="#L-395"></a> <a href="#L-396"></a>]] <a href="#L-397"></a> <a href="#L-398"></a>local patterns = { <a href="#L-399"></a> -- year-initial numerical year-month-day <a href="#L-400"></a> ['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'}, <a href="#L-401"></a> -- month-initial: month day, year <a href="#L-402"></a> ['Mdy'] = {'^(%D-) +([1-9]%d?), +((%d%d%d%d?)%a?)$', 'm', 'd', 'a', 'y'}, <a href="#L-403"></a> -- month-initial day range: month day–day, year; days are separated by endash <a href="#L-404"></a> ['Md-dy'] = {'^(%D-) +([1-9]%d?)[%-–]([1-9]%d?), +((%d%d%d%d)%a?)$', 'm', 'd', 'd2', 'a', 'y'}, <a href="#L-405"></a> -- day-initial: day month year <a href="#L-406"></a> ['dMy'] = {'^([1-9]%d?) +(%D-) +((%d%d%d%d?)%a?)$', 'd', 'm', 'a', 'y'}, <a href="#L-407"></a> -- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed; not supported at en.wiki <a href="#L-408"></a> -- ['yMd'] = {'^((%d%d%d%d?)%a?) +(%D-) +(%d%d?)$', 'a', 'y', 'm', 'd'}, <a href="#L-409"></a> -- day-range-initial: day–day month year; days are separated by endash <a href="#L-410"></a> ['d-dMy'] = {'^([1-9]%d?)[%-–]([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'd2', 'm', 'a', 'y'}, <a href="#L-411"></a> -- day initial month-day-range: day month - day month year; uses spaced endash <a href="#L-412"></a> ['dM-dMy'] = {'^([1-9]%d?) +(%D-) +[%-–] +([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'm', 'd2', 'm2', 'a', 'y'}, <a href="#L-413"></a> -- month initial month-day-range: month day – month day, year; uses spaced endash <a href="#L-414"></a> ['Md-Mdy'] = {'^(%D-) +([1-9]%d?) +[%-–] +(%D-) +([1-9]%d?), +((%d%d%d%d)%a?)$','m', 'd', 'm2', 'd2', 'a', 'y'}, <a href="#L-415"></a> -- day initial month-day-year-range: day month year - day month year; uses spaced endash <a href="#L-416"></a> ['dMy-dMy'] = {'^([1-9]%d?) +(%D-) +(%d%d%d%d) +[%-–] +([1-9]%d?) +(%D-) +((%d%d%d%d)%a?)$', 'd', 'm', 'y', 'd2', 'm2', 'a', 'y2'}, <a href="#L-417"></a> -- month initial month-day-year-range: month day, year – month day, year; uses spaced endash <a href="#L-418"></a> ['Mdy-Mdy'] = {'^(%D-) +([1-9]%d?), +(%d%d%d%d) +[%-–] +(%D-) +([1-9]%d?), +((%d%d%d%d)%a?)$', 'm', 'd', 'y', 'm2', 'd2', 'a', 'y2'}, <a href="#L-419"></a> <a href="#L-420"></a> -- these date formats cannot be converted, per se, but month name can be rendered short or long <a href="#L-421"></a> -- month/season year - month/season year; separated by spaced endash <a href="#L-422"></a> ['My-My'] = {'^(%D-) +(%d%d%d%d) +[%-–] +(%D-) +((%d%d%d%d)%a?)$', 'm', 'y', 'm2', 'a', 'y2'}, <a href="#L-423"></a> -- month/season range year; months separated by endash <a href="#L-424"></a> ['M-My'] = {'^(%D-)[%-–](%D-) +((%d%d%d%d)%a?)$', 'm', 'm2', 'a', 'y'}, <a href="#L-425"></a> -- month/season year or proper-name year; quarter year when First Quarter YYYY etc. <a href="#L-426"></a> ['My'] = {'^([^%d–]-) +((%d%d%d%d)%a?)$', 'm', 'a', 'y'}, -- this way because endash is a member of %D; %D- will match January–March 2019 when it shouldn't <a href="#L-427"></a> <a href="#L-428"></a> -- these date formats cannot be converted <a href="#L-429"></a> ['Sy4-y2'] = {'^(%D-) +((%d%d)%d%d)[%-–]((%d%d)%a?)$'}, -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash <a href="#L-430"></a> ['Sy-y'] = {'^(%D-) +(%d%d%d%d)[%-–]((%d%d%d%d)%a?)$'}, -- special case Winter/Summer year-year; year separated with unspaced endash <a href="#L-431"></a> ['y-y'] = {'^(%d%d%d%d?)[%-–]((%d%d%d%d?)%a?)$'}, -- year range: YYY-YYY or YYY-YYYY or YYYY–YYYY; separated by unspaced endash; 100-9999 <a href="#L-432"></a> ['y4-y2'] = {'^((%d%d)%d%d)[%-–]((%d%d)%a?)$'}, -- year range: YYYY–YY; separated by unspaced endash <a href="#L-433"></a> ['y'] = {'^((%d%d%d%d?)%a?)$'}, -- year; here accept either YYY or YYYY <a href="#L-434"></a> } <a href="#L-435"></a> <a href="#L-436"></a> <a href="#L-437"></a>--[[-------------------------------------------------------------- <a href="#L-438"></a> <a href="#L-439"></a>returns true and date value if that value has proper dmy, mdy, ymd format. <a href="#L-440"></a> <a href="#L-441"></a>returns false and 9999 (embargoed forever) when date value is not proper format; assumes that when |pmc-embargo-date= is <a href="#L-442"></a>set, the editor intended to embargo a PMC but |pmc-embargo-date= does not hold a single date. <a href="#L-443"></a> <a href="#L-444"></a>]] <a href="#L-445"></a> <a href="#L-446"></a>local function is_valid_embargo_date (v) <a href="#L-447"></a> if v:match (patterns['ymd'][1]) or -- ymd <a href="#L-448"></a> v:match (patterns['Mdy'][1]) or -- dmy <a href="#L-449"></a> v:match (patterns['dMy'][1]) then -- mdy <a href="#L-450"></a> return true, v; <a href="#L-451"></a> end <a href="#L-452"></a> return false, '9999'; -- if here not good date so return false and set embargo date to long time in future <a href="#L-453"></a>end <a href="#L-454"></a> <a href="#L-455"></a> <a href="#L-456"></a>--[[--------------------------< C H E C K _ D A T E >---------------------------------------------------------- <a href="#L-457"></a> <a href="#L-458"></a>Check date format to see that it is one of the formats approved by WP:DATESNO or WP:DATERANGE. Exception: only <a href="#L-459"></a>allowed range separator is endash. Additionally, check the date to see that it is a real date: no 31 in 30-day <a href="#L-460"></a>months; no 29 February when not a leap year. Months, both long-form and three character abbreviations, and seasons <a href="#L-461"></a>must be spelled correctly. Future years beyond next year are not allowed. <a href="#L-462"></a> <a href="#L-463"></a>If the date fails the format tests, this function returns false and does not return values for anchor_year and <a href="#L-464"></a>COinS_date. When this happens, the date parameter is (DEBUG: not?) used in the COinS metadata and the CITEREF identifier gets <a href="#L-465"></a>its year from the year parameter if present otherwise CITEREF does not get a date value. <a href="#L-466"></a> <a href="#L-467"></a>Inputs: <a href="#L-468"></a> date_string - date string from date-holding parameters (date, year, publication-date, access-date, pmc-embargo-date, archive-date, lay-date) <a href="#L-469"></a> <a href="#L-470"></a>Returns: <a href="#L-471"></a> false if date string is not a real date; else <a href="#L-472"></a> true, anchor_year, COinS_date <a href="#L-473"></a> anchor_year can be used in CITEREF anchors <a href="#L-474"></a> COinS_date is ISO 8601 format date; see make_COInS_date() <a href="#L-475"></a> <a href="#L-476"></a>]] <a href="#L-477"></a> <a href="#L-478"></a>local function check_date (date_string, param, tCOinS_date) <a href="#L-479"></a> local year; -- assume that year2, months, and days are not used; <a href="#L-480"></a> local year2 = 0; -- second year in a year range <a href="#L-481"></a> local month = 0; <a href="#L-482"></a> local month2 = 0; -- second month in a month range <a href="#L-483"></a> local day = 0; <a href="#L-484"></a> local day2 = 0; -- second day in a day range <a href="#L-485"></a> local anchor_year; <a href="#L-486"></a> local coins_date; <a href="#L-487"></a> <a href="#L-488"></a> if date_string:match (patterns['ymd'][1]) then -- year-initial numerical year month day format <a href="#L-489"></a> year, month, day = date_string:match (patterns['ymd'][1]); <a href="#L-490"></a> 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 <a href="#L-491"></a> anchor_year = year; <a href="#L-492"></a> <a href="#L-493"></a> elseif mw.ustring.match(date_string, patterns['Mdy'][1]) then -- month-initial: month day, year <a href="#L-494"></a> month, day, anchor_year, year = mw.ustring.match(date_string, patterns['Mdy'][1]); <a href="#L-495"></a> month = get_month_number (month); <a href="#L-496"></a> if 0 == month then return false; end -- return false if month text isn't one of the twelve months <a href="#L-497"></a> <a href="#L-498"></a> elseif mw.ustring.match(date_string, patterns['Md-dy'][1]) then -- month-initial day range: month day–day, year; days are separated by endash <a href="#L-499"></a> month, day, day2, anchor_year, year = mw.ustring.match(date_string, patterns['Md-dy'][1]); <a href="#L-500"></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; <a href="#L-501"></a> month = get_month_number (month); <a href="#L-502"></a> if 0 == month then return false; end -- return false if month text isn't one of the twelve months <a href="#L-503"></a> month2=month; -- for metadata <a href="#L-504"></a> year2 = year; <a href="#L-505"></a> <a href="#L-506"></a> elseif mw.ustring.match(date_string, patterns['dMy'][1]) then -- day-initial: day month year <a href="#L-507"></a> day, month, anchor_year, year = mw.ustring.match(date_string, patterns['dMy'][1]); <a href="#L-508"></a> month = get_month_number (month); <a href="#L-509"></a> if 0 == month then return false; end -- return false if month text isn't one of the twelve months <a href="#L-510"></a> <a href="#L-511"></a>--[[ NOT supported at en.wiki <a href="#L-512"></a> elseif mw.ustring.match(date_string, patterns['yMd'][1]) then -- year-initial: year month day; day: 1 or 2 two digits, leading zero allowed <a href="#L-513"></a> anchor_year, year, month, day = mw.ustring.match(date_string, patterns['yMd'][1]); <a href="#L-514"></a> month = get_month_number (month); <a href="#L-515"></a> if 0 == month then return false; end -- return false if month text isn't one of the twelve months <a href="#L-516"></a>-- end NOT supported at en.wiki ]] <a href="#L-517"></a> <a href="#L-518"></a> elseif mw.ustring.match(date_string, patterns['d-dMy'][1]) then -- day-range-initial: day–day month year; days are separated by endash <a href="#L-519"></a> day, day2, month, anchor_year, year = mw.ustring.match(date_string, patterns['d-dMy'][1]); <a href="#L-520"></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; <a href="#L-521"></a> month = get_month_number (month); <a href="#L-522"></a> if 0 == month then return false; end -- return false if month text isn't one of the twelve months <a href="#L-523"></a> month2 = month; -- for metadata <a href="#L-524"></a> year2 = year; <a href="#L-525"></a> <a href="#L-526"></a> elseif mw.ustring.match(date_string, patterns['dM-dMy'][1]) then -- day initial month-day-range: day month - day month year; uses spaced endash <a href="#L-527"></a> day, month, day2, month2, anchor_year, year = mw.ustring.match(date_string, patterns['dM-dMy'][1]); <a href="#L-528"></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; <a href="#L-529"></a> month = get_month_number (month); -- for metadata <a href="#L-530"></a> month2 = get_month_number (month2); <a href="#L-531"></a> year2 = year; <a href="#L-532"></a> <a href="#L-533"></a> elseif mw.ustring.match(date_string, patterns['Md-Mdy'][1]) then -- month initial month-day-range: month day – month day, year; uses spaced endash <a href="#L-534"></a> month, day, month2, day2, anchor_year, year = mw.ustring.match(date_string, patterns['Md-Mdy'][1]); <a href="#L-535"></a> if (not is_valid_month_season_range(month, month2, param)) or not is_valid_year(year) then return false; end <a href="#L-536"></a> month = get_month_number (month); -- for metadata <a href="#L-537"></a> month2 = get_month_number (month2); <a href="#L-538"></a> year2 = year; <a href="#L-539"></a> <a href="#L-540"></a> 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 <a href="#L-541"></a> day, month, year, day2, month2, anchor_year, year2 = mw.ustring.match(date_string, patterns['dMy-dMy'][1]); <a href="#L-542"></a> if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later <a href="#L-543"></a> 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 <a href="#L-544"></a> month = get_month_number (month); -- for metadata <a href="#L-545"></a> month2 = get_month_number (month2); <a href="#L-546"></a> if 0 == month or 0 == month2 then return false; end -- both must be valid <a href="#L-547"></a> <a href="#L-548"></a> 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 <a href="#L-549"></a> month, day, year, month2, day2, anchor_year, year2 = mw.ustring.match(date_string, patterns['Mdy-Mdy'][1]); <a href="#L-550"></a> if tonumber(year2) <= tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later <a href="#L-551"></a> 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 <a href="#L-552"></a> month = get_month_number (month); -- for metadata <a href="#L-553"></a> month2 = get_month_number(month2); <a href="#L-554"></a> if 0 == month or 0 == month2 then return false; end -- both must be valid <a href="#L-555"></a> <a href="#L-556"></a> elseif mw.ustring.match(date_string, patterns['Sy4-y2'][1]) then -- special case Winter/Summer year-year (YYYY-YY); year separated with unspaced endash <a href="#L-557"></a> local century; <a href="#L-558"></a> month, year, century, anchor_year, year2 = mw.ustring.match(date_string, patterns['Sy4-y2'][1]); <a href="#L-559"></a> if 'Winter' ~= month and 'Summer' ~= month then return false end; -- 'month' can only be Winter or Summer <a href="#L-560"></a> anchor_year = year .. '–' .. anchor_year; -- assemble anchor_year from both years <a href="#L-561"></a> year2 = century..year2; -- add the century to year2 for comparisons <a href="#L-562"></a> if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later <a href="#L-563"></a> if not is_valid_year(year2) then return false; end -- no year farther in the future than next year <a href="#L-564"></a> month = get_season_number(month, param); <a href="#L-565"></a> <a href="#L-566"></a> elseif mw.ustring.match(date_string, patterns['Sy-y'][1]) then -- special case Winter/Summer year-year; year separated with unspaced endash <a href="#L-567"></a> month, year, anchor_year, year2 = mw.ustring.match(date_string, patterns['Sy-y'][1]); <a href="#L-568"></a> month = get_season_number (month, param); -- <month> can only be winter or summer; also for metadata <a href="#L-569"></a> if (month ~= cfg.date_names['en'].season['Winter']) and (month ~= cfg.date_names['en'].season['Summer']) then <a href="#L-570"></a> return false; -- not Summer or Winter; abandon <a href="#L-571"></a> end <a href="#L-572"></a> anchor_year = year .. '–' .. anchor_year; -- assemble anchor_year from both years <a href="#L-573"></a> if 1 ~= tonumber(year2) - tonumber(year) then return false; end -- must be sequential years, left to right, earlier to later <a href="#L-574"></a> if not is_valid_year(year2) then return false; end -- no year farther in the future than next year <a href="#L-575"></a> <a href="#L-576"></a> elseif mw.ustring.match(date_string, patterns['My-My'][1]) then -- month/season year - month/season year; separated by spaced endash <a href="#L-577"></a> month, year, month2, anchor_year, year2 = mw.ustring.match(date_string, patterns['My-My'][1]); <a href="#L-578"></a> anchor_year = year .. '–' .. anchor_year; -- assemble anchor_year from both years <a href="#L-579"></a> if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same <a href="#L-580"></a> if not is_valid_year(year2) then return false; end -- no year farther in the future than next year <a href="#L-581"></a> 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 <a href="#L-582"></a> month = get_month_number(month); <a href="#L-583"></a> month2 = get_month_number(month2); <a href="#L-584"></a> elseif 0 ~= get_season_number(month, param) and 0 ~= get_season_number(month2, param) then -- both must be season year, not mixed <a href="#L-585"></a> month = get_season_number(month, param); <a href="#L-586"></a> month2 = get_season_number(month2, param); <a href="#L-587"></a> else <a href="#L-588"></a> return false; <a href="#L-589"></a> end <a href="#L-590"></a> <a href="#L-591"></a> elseif mw.ustring.match(date_string, patterns['M-My'][1]) then -- month/season range year; months separated by endash <a href="#L-592"></a> month, month2, anchor_year, year = mw.ustring.match(date_string, patterns['M-My'][1]); <a href="#L-593"></a> if (not is_valid_month_season_range(month, month2, param)) or (not is_valid_year(year)) then return false; end <a href="#L-594"></a> if 0 ~= get_month_number(month) then -- determined to be a valid range so just check this one to know if month or season <a href="#L-595"></a> month = get_month_number(month); <a href="#L-596"></a> month2 = get_month_number(month2); <a href="#L-597"></a> if 0 == month or 0 == month2 then return false; end <a href="#L-598"></a> else <a href="#L-599"></a> month = get_season_number(month, param); <a href="#L-600"></a> month2 = get_season_number(month2, param); <a href="#L-601"></a> end <a href="#L-602"></a> year2 = year; <a href="#L-603"></a> <a href="#L-604"></a> elseif mw.ustring.match(date_string, patterns['My'][1]) then -- month/season/quarter/proper-name year <a href="#L-605"></a> month, anchor_year, year = mw.ustring.match(date_string, patterns['My'][1]); <a href="#L-606"></a> if not is_valid_year(year) then return false; end <a href="#L-607"></a> month = get_element_number(month, param); -- get month season quarter proper-name number or nil <a href="#L-608"></a> if not month then return false; end -- not valid whatever it is <a href="#L-609"></a> <a href="#L-610"></a> 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 <a href="#L-611"></a> year, anchor_year, year2 = mw.ustring.match(date_string, patterns['y-y'][1]); <a href="#L-612"></a> anchor_year = year .. '–' .. anchor_year; -- assemble anchor year from both years <a href="#L-613"></a> if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same <a href="#L-614"></a> if not is_valid_year(year2) then return false; end -- no year farther in the future than next year <a href="#L-615"></a> <a href="#L-616"></a> elseif mw.ustring.match(date_string, patterns['y4-y2'][1]) then -- Year range: YYYY–YY; separated by unspaced endash <a href="#L-617"></a> local century; <a href="#L-618"></a> year, century, anchor_year, year2 = mw.ustring.match(date_string, patterns['y4-y2'][1]); <a href="#L-619"></a> anchor_year = year .. '–' .. anchor_year; -- assemble anchor year from both years <a href="#L-620"></a> <a href="#L-621"></a> if 13 > tonumber(year2) then return false; end -- don't allow 2003-05 which might be May 2003 <a href="#L-622"></a> year2 = century .. year2; -- add the century to year2 for comparisons <a href="#L-623"></a> if tonumber(year) >= tonumber(year2) then return false; end -- left to right, earlier to later, not the same <a href="#L-624"></a> if not is_valid_year(year2) then return false; end -- no year farther in the future than next year <a href="#L-625"></a> <a href="#L-626"></a> if in_array (param, {'date', 'publication-date', 'year'}) then -- here when 'valid' abbreviated year range; if one of these parameters <a href="#L-627"></a> add_prop_cat ('year-range-abbreviated'); -- add properties cat <a href="#L-628"></a> end <a href="#L-629"></a> <a href="#L-630"></a> elseif mw.ustring.match(date_string, patterns['y'][1]) then -- year; here accept either YYY or YYYY <a href="#L-631"></a> anchor_year, year = mw.ustring.match(date_string, patterns['y'][1]); <a href="#L-632"></a> if false == is_valid_year(year) then <a href="#L-633"></a> return false; <a href="#L-634"></a> end <a href="#L-635"></a> <a href="#L-636"></a> else <a href="#L-637"></a> return false; -- date format not one of the MOS:DATE approved formats <a href="#L-638"></a> end <a href="#L-639"></a> <a href="#L-640"></a> if param ~= 'date' then -- CITEREF disambiguation only allowed in |date=; |year= & |publication-date= promote to date <a href="#L-641"></a> if anchor_year:match ('%l$') then <a href="#L-642"></a> return false; <a href="#L-643"></a> end <a href="#L-644"></a> end <a href="#L-645"></a> <a href="#L-646"></a> if 'access-date' == param then -- test access-date here because we have numerical date parts <a href="#L-647"></a> if 0 ~= year and 0 ~= month and 0 ~= day and -- all parts of a single date required <a href="#L-648"></a> 0 == year2 and 0 == month2 and 0 == day2 then -- none of these; access-date must not be a range <a href="#L-649"></a> if not is_valid_accessdate(year .. '-' .. month .. '-' .. day) then <a href="#L-650"></a> return false; -- return false when access-date out of bounds <a href="#L-651"></a> end <a href="#L-652"></a> else <a href="#L-653"></a> return false; -- return false when access-date is a range of two dates <a href="#L-654"></a> end <a href="#L-655"></a> end <a href="#L-656"></a> <a href="#L-657"></a> if 'archive-date' == param then -- test archive-date here because we have numerical date parts <a href="#L-658"></a> if not (0 ~= year and 0 ~= month and 0 ~= day and -- all parts of a single date required <a href="#L-659"></a> 0 == year2 and 0 == month2 and 0 == day2) then -- none of these; archive-date must not be a range <a href="#L-660"></a> return false; -- return false when archive-date is a range of two dates <a href="#L-661"></a> end <a href="#L-662"></a> end <a href="#L-663"></a> <a href="#L-664"></a> local result=true; -- check whole dates for validity; assume true because not all dates will go through this test <a href="#L-665"></a> if 0 ~= year and 0 ~= month and 0 ~= day and 0 == year2 and 0 == month2 and 0 == day2 then -- YMD (simple whole date) <a href="#L-666"></a> result = is_valid_date (year, month, day, param); -- <param> for |pmc-embargo-date= <a href="#L-667"></a> <a href="#L-668"></a> elseif 0 ~= year and 0 ~= month and 0 ~= day and 0 == year2 and 0 == month2 and 0 ~= day2 then -- YMD-d (day range) <a href="#L-669"></a> result = is_valid_date (year, month, day); <a href="#L-670"></a> result = result and is_valid_date (year, month, day2); <a href="#L-671"></a> <a href="#L-672"></a> elseif 0 ~= year and 0 ~= month and 0 ~= day and 0 == year2 and 0 ~= month2 and 0 ~= day2 then -- YMD-md (day month range) <a href="#L-673"></a> result = is_valid_date (year, month, day); <a href="#L-674"></a> result = result and is_valid_date (year, month2, day2); <a href="#L-675"></a> <a href="#L-676"></a> 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) <a href="#L-677"></a> result = is_valid_date(year, month, day); <a href="#L-678"></a> result = result and is_valid_date(year2, month2, day2); <a href="#L-679"></a> end <a href="#L-680"></a> <a href="#L-681"></a> if false == result then return false; end <a href="#L-682"></a> <a href="#L-683"></a> if nil ~= tCOinS_date then -- this table only passed into this function when testing |date= parameter values <a href="#L-684"></a> 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 <a href="#L-685"></a> end <a href="#L-686"></a> <a href="#L-687"></a> return true, anchor_year; -- format is good and date string represents a real date <a href="#L-688"></a>end <a href="#L-689"></a> <a href="#L-690"></a> <a href="#L-691"></a>--[[--------------------------< D A T E S >-------------------------------------------------------------------- <a href="#L-692"></a> <a href="#L-693"></a>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 <a href="#L-694"></a>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 <a href="#L-695"></a>the COinS metadata) are derived. The |date= parameter is the only date-holding parameter that is allowed to contain the no-date keywords "n.d." or "nd" (without quotes). <a href="#L-696"></a> <a href="#L-697"></a>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 href="#L-698"></a>parameters with errors are added to the <error_list> sequence table as the dates are tested. <a href="#L-699"></a> <a href="#L-700"></a>]] <a href="#L-701"></a> <a href="#L-702"></a>local function dates(date_parameters_list, tCOinS_date, error_list) <a href="#L-703"></a> local anchor_year; -- will return as nil if the date being tested is not |date= <a href="#L-704"></a> local COinS_date; -- will return as nil if the date being tested is not |date= <a href="#L-705"></a> local embargo_date; -- if embargo date is a good dmy, mdy, ymd date then holds original value else reset to 9999 <a href="#L-706"></a> local good_date = false; <a href="#L-707"></a> <a href="#L-708"></a> for k, v in pairs(date_parameters_list) do -- for each date-holding parameter in the list <a href="#L-709"></a> if is_set(v.val) then -- if the parameter has a value <a href="#L-710"></a> v.val = mw.ustring.gsub(v.val, '%d', cfg.date_names.local_digits); -- translate 'local' digits to Western 0-9 <a href="#L-711"></a> if v.val:match("^c%. [1-9]%d%d%d?%a?$") then -- special case for c. year or with or without CITEREF disambiguator - only |date= and |year= <a href="#L-712"></a> local year = v.val:match("c%. ([1-9]%d%d%d?)%a?"); -- get the year portion so it can be tested <a href="#L-713"></a> if 'date' == k then <a href="#L-714"></a> anchor_year, COinS_date = v.val:match("((c%. [1-9]%d%d%d?)%a?)"); -- anchor year and COinS_date only from |date= parameter <a href="#L-715"></a> good_date = is_valid_year(year); <a href="#L-716"></a> elseif 'year' == k then <a href="#L-717"></a> good_date = is_valid_year(year); <a href="#L-718"></a> end <a href="#L-719"></a> elseif 'date' == k then -- if the parameter is |date= <a href="#L-720"></a> if v.val:match("^n%.d%.%a?$") then -- ToDo: I18N -- if |date=n.d. with or without a CITEREF disambiguator <a href="#L-721"></a> good_date, anchor_year, COinS_date = true, v.val:match("((n%.d%.)%a?)"); -- ToDo: I18N -- "n.d."; no error when date parameter is set to no date <a href="#L-722"></a> elseif v.val:match("^nd%a?$") then -- ToDo: I18N -- if |date=nd with or without a CITEREF disambiguator <a href="#L-723"></a> good_date, anchor_year, COinS_date = true, v.val:match("((nd)%a?)"); -- ToDo: I18N -- "nd"; no error when date parameter is set to no date <a href="#L-724"></a> else <a href="#L-725"></a> good_date, anchor_year, COinS_date = check_date (v.val, k, tCOinS_date); -- go test the date <a href="#L-726"></a> end <a href="#L-727"></a> elseif 'year' == k then -- if the parameter is |year= it should hold only a year value <a href="#L-728"></a> if v.val:match("^[1-9]%d%d%d?%a?$") then -- if |year = 3 or 4 digits only with or without a CITEREF disambiguator <a href="#L-729"></a> good_date, anchor_year, COinS_date = true, v.val:match("((%d+)%a?)"); <a href="#L-730"></a> end <a href="#L-731"></a> elseif 'pmc-embargo-date' == k then -- if the parameter is |pmc-embargo-date= <a href="#L-732"></a> good_date = check_date (v.val, k); -- go test the date <a href="#L-733"></a> if true == good_date then -- if the date is a valid date <a href="#L-734"></a> 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 <a href="#L-735"></a> end <a href="#L-736"></a> else -- any other date-holding parameter <a href="#L-737"></a> good_date = check_date (v.val, k); -- go test the date <a href="#L-738"></a> end <a href="#L-739"></a> if false == good_date then -- assemble one error message so we don't add the tracking category multiple times <a href="#L-740"></a> table.insert (error_list, wrap_style ('parameter', v.name)); -- make parameter name suitable for error message list <a href="#L-741"></a> end <a href="#L-742"></a> end <a href="#L-743"></a> end <a href="#L-744"></a> return anchor_year, embargo_date; -- and done <a href="#L-745"></a>end <a href="#L-746"></a> <a href="#L-747"></a> <a href="#L-748"></a>--[[--------------------------< Y E A R _ D A T E _ C H E C K >------------------------------------------------ <a href="#L-749"></a> <a href="#L-750"></a>Compare the value provided in |year= with the year value(s) provided in |date=. This function sets a local numeric value: <a href="#L-751"></a> 0 - year value does not match the year value in date <a href="#L-752"></a> 1 - (default) year value matches the year value in date or one of the year values when date contains two years <a href="#L-753"></a> 2 - year value matches the year value in date when date is in the form YYYY-MM-DD and year is disambiguated (|year=YYYYx) <a href="#L-754"></a> <a href="#L-755"></a>the numeric value in <result> determines the 'output' if any from this function: <a href="#L-756"></a> 0 – adds error message to error_list sequence table <a href="#L-757"></a> 1 – adds maint cat <a href="#L-758"></a> 2 – does nothing <a href="#L-759"></a> <a href="#L-760"></a>]] <a href="#L-761"></a> <a href="#L-762"></a>local function year_date_check (year_string, year_origin, date_string, date_origin, error_list) <a href="#L-763"></a> local year; <a href="#L-764"></a> local date1; <a href="#L-765"></a> local date2; <a href="#L-766"></a> local result = 1; -- result of the test; assume that the test passes <a href="#L-767"></a> <a href="#L-768"></a> year = year_string:match ('(%d%d%d%d?)'); <a href="#L-769"></a> <a href="#L-770"></a> 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 <a href="#L-771"></a> date1 = date_string:match ('(%d%d%d%d)'); <a href="#L-772"></a> year = year_string:match ('(%d%d%d%d)'); <a href="#L-773"></a> if year ~= date1 then <a href="#L-774"></a> result = 0; -- years don't match <a href="#L-775"></a> else <a href="#L-776"></a> result = 2; -- years match; but because disambiguated, don't add to maint cat <a href="#L-777"></a> end <a href="#L-778"></a> <a href="#L-779"></a> elseif date_string:match ("%d%d%d%d?.-%d%d%d%d?") then -- any of the standard range formats of date with two three- or four-digit years <a href="#L-780"></a> date1, date2 = date_string:match ("(%d%d%d%d?).-(%d%d%d%d?)"); <a href="#L-781"></a> if year ~= date1 and year ~= date2 then <a href="#L-782"></a> result = 0; <a href="#L-783"></a> end <a href="#L-784"></a> <a href="#L-785"></a> elseif mw.ustring.match(date_string, "%d%d%d%d[%-–]%d%d") then -- YYYY-YY date ranges <a href="#L-786"></a> local century; <a href="#L-787"></a> date1, century, date2 = mw.ustring.match(date_string, "((%d%d)%d%d)[%-–]+(%d%d)"); <a href="#L-788"></a> date2 = century..date2; -- convert YY to YYYY <a href="#L-789"></a> if year ~= date1 and year ~= date2 then <a href="#L-790"></a> result = 0; <a href="#L-791"></a> end <a href="#L-792"></a> <a href="#L-793"></a> elseif date_string:match ("%d%d%d%d?") then -- any of the standard formats of date with one year <a href="#L-794"></a> date1 = date_string:match ("(%d%d%d%d?)"); <a href="#L-795"></a> if year ~= date1 then <a href="#L-796"></a> result = 0; <a href="#L-797"></a> end <a href="#L-798"></a> else -- should never get here; this function called only when no other date errors <a href="#L-799"></a> result = 0; -- no recognizable year in date <a href="#L-800"></a> end <a href="#L-801"></a> <a href="#L-802"></a> if 0 == result then -- year / date mismatch <a href="#L-803"></a> table.insert (error_list, substitute (cfg.messages['mismatch'], {year_origin, date_origin})); -- add error message to error_list sequence table <a href="#L-804"></a> elseif 1 == result then -- redundant year / date <a href="#L-805"></a> set_message ('maint_date_year'); -- add a maint cat <a href="#L-806"></a> end <a href="#L-807"></a>end <a href="#L-808"></a> <a href="#L-809"></a> <a href="#L-810"></a>--[[--------------------------< R E F O R M A T T E R >-------------------------------------------------------- <a href="#L-811"></a> <a href="#L-812"></a>reformat 'date' into new format specified by format_param if pattern_idx (the current format of 'date') can be <a href="#L-813"></a>reformatted. Does the grunt work for reformat_dates(). <a href="#L-814"></a> <a href="#L-815"></a>The table re_formats maps pattern_idx (current format) and format_param (desired format) to a table that holds: <a href="#L-816"></a> format string used by string.format() <a href="#L-817"></a> identifier letters ('d', 'm', 'y', 'd2', 'm2', 'y2') that serve as indexes into a table t{} that holds captures <a href="#L-818"></a> from mw.ustring.match() for the various date parts specified by patterns[pattern_idx][1] <a href="#L-819"></a> <a href="#L-820"></a>Items in patterns{} have the general form: <a href="#L-821"></a> ['ymd'] = {'^(%d%d%d%d)%-(%d%d)%-(%d%d)$', 'y', 'm', 'd'}, where: <a href="#L-822"></a> ['ymd'] is pattern_idx <a href="#L-823"></a> patterns['ymd'][1] is the match pattern with captures for mw.ustring.match() <a href="#L-824"></a> patterns['ymd'][2] is an indicator letter identifying the content of the first capture <a href="#L-825"></a> patterns['ymd'][3] ... the second capture etc. <a href="#L-826"></a> <a href="#L-827"></a>when a pattern matches a date, the captures are loaded into table t{} in capture order using the idemtifier <a href="#L-828"></a>characters as indexes into t{} For the above, a ymd date is in t{} as: <a href="#L-829"></a> t.y = first capture (year), t.m = second capture (month), t.d = third capture (day) <a href="#L-830"></a> <a href="#L-831"></a>To reformat, this function is called with the pattern_idx that matches the current format of the date and with <a href="#L-832"></a>format_param set to the desired format. This function loads table t{} as described and then calls string.format() <a href="#L-833"></a>with the format string specified by re_format[pattern_idx][format_param][1] using values taken from t{} according <a href="#L-834"></a>to the capture identifier letters specified by patterns[pattern_idx][format_param][n] where n is 2.. <a href="#L-835"></a> <a href="#L-836"></a>]] <a href="#L-837"></a> <a href="#L-838"></a>local re_formats = { <a href="#L-839"></a> ['ymd'] = { -- date format is ymd; reformat to: <a href="#L-840"></a> ['mdy'] = {'%s %s, %s', 'm', 'd', 'y'}, -- |df=mdy <a href="#L-841"></a> ['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- |df=dmy <a href="#L-842"></a> -- ['yMd'] = {'%s %s %s', 'y', 'm', 'd'}, -- |df=yMd; not supported at en.wiki <a href="#L-843"></a> }, <a href="#L-844"></a> ['Mdy'] = { -- date format is Mdy; reformat to: <a href="#L-845"></a> ['mdy'] = {'%s %s, %s', 'm', 'd', 'y'}, -- for long/short reformatting <a href="#L-846"></a> ['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- |df=dmy <a href="#L-847"></a> ['ymd'] = {'%s-%s-%s', 'y', 'm', 'd'}, -- |df=ymd <a href="#L-848"></a> -- ['yMd'] = {'%s %s %s', 'y', 'm', 'd'}, -- |df=yMd; not supported at en.wiki <a href="#L-849"></a> }, <a href="#L-850"></a> ['dMy'] = { -- date format is dMy; reformat to: <a href="#L-851"></a> ['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- for long/short reformatting <a href="#L-852"></a> ['mdy'] = {'%s %s, %s', 'm', 'd', 'y'}, -- |df=mdy <a href="#L-853"></a> ['ymd'] = {'%s-%s-%s', 'y', 'm', 'd'}, -- |df=ymd <a href="#L-854"></a> -- ['yMd'] = {'%s %s %s', 'y', 'm', 'd'}, -- |df=yMd; not supported at en.wiki <a href="#L-855"></a> }, <a href="#L-856"></a> ['Md-dy'] = { -- date format is Md-dy; reformat to: <a href="#L-857"></a> ['mdy'] = {'%s %s–%s, %s', 'm', 'd', 'd2', 'y'}, -- for long/short reformatting <a href="#L-858"></a> ['dmy'] = {'%s–%s %s %s', 'd', 'd2', 'm', 'y'}, -- |df=dmy -> d-dMy <a href="#L-859"></a> }, <a href="#L-860"></a> ['d-dMy'] = { -- date format is d-d>y; reformat to: <a href="#L-861"></a> ['dmy'] = {'%s–%s %s %s', 'd', 'd2', 'm', 'y'}, -- for long/short reformatting <a href="#L-862"></a> ['mdy'] = {'%s %s–%s, %s', 'm', 'd', 'd2', 'y'}, -- |df=mdy -> Md-dy <a href="#L-863"></a> }, <a href="#L-864"></a> ['dM-dMy'] = { -- date format is dM-dMy; reformat to: <a href="#L-865"></a> ['dmy'] = {'%s %s – %s %s %s', 'd', 'm', 'd2', 'm2', 'y'}, -- for long/short reformatting <a href="#L-866"></a> ['mdy'] = {'%s %s – %s %s, %s', 'm', 'd', 'm2', 'd2', 'y'}, -- |df=mdy -> Md-Mdy <a href="#L-867"></a> }, <a href="#L-868"></a> ['Md-Mdy'] = { -- date format is Md-Mdy; reformat to: <a href="#L-869"></a> ['mdy'] = {'%s %s – %s %s, %s', 'm', 'd', 'm2', 'd2', 'y'}, -- for long/short reformatting <a href="#L-870"></a> ['dmy'] = {'%s %s – %s %s %s', 'd', 'm', 'd2', 'm2', 'y'}, -- |df=dmy -> dM-dMy <a href="#L-871"></a> }, <a href="#L-872"></a> ['dMy-dMy'] = { -- date format is dMy-dMy; reformat to: <a href="#L-873"></a> ['dmy'] = {'%s %s %s – %s %s %s', 'd', 'm', 'y', 'd2', 'm2', 'y2'}, -- for long/short reformatting <a href="#L-874"></a> ['mdy'] = {'%s %s, %s – %s %s, %s', 'm', 'd', 'y', 'm2', 'd2', 'y2'}, -- |df=mdy -> Mdy-Mdy <a href="#L-875"></a> }, <a href="#L-876"></a> ['Mdy-Mdy'] = { -- date format is Mdy-Mdy; reformat to: <a href="#L-877"></a> ['mdy'] = {'%s %s, %s – %s %s, %s', 'm', 'd', 'y', 'm2', 'd2', 'y2'}, -- for long/short reformatting <a href="#L-878"></a> ['dmy'] = {'%s %s %s – %s %s %s', 'd', 'm', 'y', 'd2', 'm2', 'y2'}, -- |df=dmy -> dMy-dMy <a href="#L-879"></a> }, <a href="#L-880"></a> ['My-My'] = { -- these for long/short reformatting <a href="#L-881"></a> ['any'] = {'%s %s – %s %s', 'm', 'y', 'm2', 'y2'}, -- dmy/mdy agnostic <a href="#L-882"></a> }, <a href="#L-883"></a> ['M-My'] = { -- these for long/short reformatting <a href="#L-884"></a> ['any'] = {'%s–%s %s', 'm', 'm2', 'y'}, -- dmy/mdy agnostic <a href="#L-885"></a> }, <a href="#L-886"></a> ['My'] = { -- these for long/short reformatting <a href="#L-887"></a> ['any'] = {'%s %s', 'm', 'y'}, -- dmy/mdy agnostic <a href="#L-888"></a> }, <a href="#L-889"></a> -- ['yMd'] = { -- not supported at en.wiki <a href="#L-890"></a> -- ['mdy'] = {'%s %s, %s', 'm', 'd', 'y'}, -- |df=mdy <a href="#L-891"></a> -- ['dmy'] = {'%s %s %s', 'd', 'm', 'y'}, -- |df=dmy <a href="#L-892"></a> -- ['ymd'] = {'%s-%s-%s', 'y', 'm', 'd'}, -- |df=ymd <a href="#L-893"></a> -- }, <a href="#L-894"></a> } <a href="#L-895"></a> <a href="#L-896"></a> <a href="#L-897"></a>local function reformatter (date, pattern_idx, format_param, mon_len) <a href="#L-898"></a> 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 <a href="#L-899"></a> return; -- not in this set of date format patterns then not a reformattable date <a href="#L-900"></a> end <a href="#L-901"></a> <a href="#L-902"></a> if 'ymd' == format_param and in_array (pattern_idx, {'ymd', 'Md-dy', 'd-dMy', 'dM-dMy', 'Md-Mdy', 'dMy-dMy', 'Mdy-Mdy', 'My-My', 'M-My', 'My'}) then <a href="#L-903"></a> return; -- ymd date ranges not supported at en.wiki; no point in reformatting ymd to ymd <a href="#L-904"></a> end <a href="#L-905"></a> <a href="#L-906"></a> if in_array (pattern_idx, {'My', 'M-My', 'My-My'}) then -- these are not dmy/mdy so can't be 'reformatted' into either <a href="#L-907"></a> format_param = 'any'; -- so format-agnostic <a href="#L-908"></a> end <a href="#L-909"></a> <a href="#L-910"></a> -- yMd is not supported at en.wiki; when yMd is supported at your wiki, uncomment the next line <a href="#L-911"></a> -- 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 <a href="#L-912"></a> if 'yMd' == format_param then -- yMd not supported at en.wiki; when yMd is supported at your wiki, remove or comment-out this line <a href="#L-913"></a> return; -- not a reformattable date <a href="#L-914"></a> end <a href="#L-915"></a> <a href="#L-916"></a> local c1, c2, c3, c4, c5, c6, c7; -- these hold the captures specified in patterns[pattern_idx][1] <a href="#L-917"></a> c1, c2, c3, c4, c5, c6, c7 = mw.ustring.match (date, patterns[pattern_idx][1]); -- get the captures <a href="#L-918"></a> <a href="#L-919"></a> local t = { -- table that holds k/v pairs of date parts from the captures and patterns[pattern_idx][2..] <a href="#L-920"></a> [patterns[pattern_idx][2]] = c1; -- at minimum there is always one capture with a matching indicator letter <a href="#L-921"></a> [patterns[pattern_idx][3] or 'x'] = c2; -- patterns can have a variable number of captures; each capture requires an indicator letter; <a href="#L-922"></a> [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; <a href="#L-923"></a> [patterns[pattern_idx][5] or 'x'] = c4; -- the 'x' here spoofs an indicator letter to prevent 'table index is nil' error <a href="#L-924"></a> [patterns[pattern_idx][6] or 'x'] = c5; <a href="#L-925"></a> [patterns[pattern_idx][7] or 'x'] = c6; <a href="#L-926"></a> [patterns[pattern_idx][8] or 'x'] = c7; <a href="#L-927"></a> }; <a href="#L-928"></a> <a href="#L-929"></a> if t.a then -- if this date has an anchor year capture (all convertable date formats except ymd) <a href="#L-930"></a> if t.y2 then -- for year range date formats <a href="#L-931"></a> t.y2 = t.a; -- use the anchor year capture when reassembling the date <a href="#L-932"></a> else -- here for single date formats (except ymd) <a href="#L-933"></a> t.y = t.a; -- use the anchor year capture when reassembling the date <a href="#L-934"></a> end <a href="#L-935"></a> end <a href="#L-936"></a> <a href="#L-937"></a> if tonumber(t.m) then -- if raw month is a number (converting from ymd) <a href="#L-938"></a> if 's' == mon_len then -- if we are to use abbreviated month names <a href="#L-939"></a> t.m = cfg.date_names['inv_local_short'][tonumber(t.m)]; -- convert it to a month name <a href="#L-940"></a> else <a href="#L-941"></a> t.m = cfg.date_names['inv_local_long'][tonumber(t.m)]; -- convert it to a month name <a href="#L-942"></a> end <a href="#L-943"></a> t.d = t.d:gsub ('0(%d)', '%1'); -- strip leading '0' from day if present <a href="#L-944"></a> elseif 'ymd' == format_param then -- when converting to ymd <a href="#L-945"></a> t.y = t.y:gsub ('%a', ''); -- strip CITREF disambiguator if present; anchor year already known so process can proceed; TODO: maint message? <a href="#L-946"></a> if 1582 > tonumber (t.y) then -- ymd format dates not allowed before 1582 <a href="#L-947"></a> return; <a href="#L-948"></a> end <a href="#L-949"></a> t.m = string.format ('%02d', get_month_number (t.m)); -- make sure that month and day are two digits <a href="#L-950"></a> t.d = string.format ('%02d', t.d); <a href="#L-951"></a> elseif mon_len then -- if mon_len is set to either 'short' or 'long' <a href="#L-952"></a> for _, mon in ipairs ({'m', 'm2'}) do -- because there can be two month names, check both <a href="#L-953"></a> if t[mon] then <a href="#L-954"></a> t[mon] = get_month_number (t[mon]); -- get the month number for this month (is length agnostic) <a href="#L-955"></a> if 0 == t[mon] then return; end -- seasons and named dates can't be converted <a href="#L-956"></a> 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 <a href="#L-957"></a> end <a href="#L-958"></a> end <a href="#L-959"></a> end <a href="#L-960"></a> <a href="#L-961"></a> local new_date = string.format (re_formats[pattern_idx][format_param][1], -- format string <a href="#L-962"></a> t[re_formats[pattern_idx][format_param][2]], -- named captures from t{} <a href="#L-963"></a> t[re_formats[pattern_idx][format_param][3]], <a href="#L-964"></a> t[re_formats[pattern_idx][format_param][4]], <a href="#L-965"></a> t[re_formats[pattern_idx][format_param][5]], <a href="#L-966"></a> t[re_formats[pattern_idx][format_param][6]], <a href="#L-967"></a> t[re_formats[pattern_idx][format_param][7]], <a href="#L-968"></a> t[re_formats[pattern_idx][format_param][8]] <a href="#L-969"></a> ); <a href="#L-970"></a> <a href="#L-971"></a> return new_date; <a href="#L-972"></a>end <a href="#L-973"></a> <a href="#L-974"></a> <a href="#L-975"></a>--[[-------------------------< R E F O R M A T _ D A T E S >-------------------------------------------------- <a href="#L-976"></a> <a href="#L-977"></a>Reformats existing dates into the format specified by format. <a href="#L-978"></a> <a href="#L-979"></a>format is one of several manual keywords: dmy, dmy-all, mdy, mdy-all, ymd, ymd-all. The -all version includes <a href="#L-980"></a>access- and archive-dates; otherwise these dates are not reformatted. <a href="#L-981"></a> <a href="#L-982"></a>This function allows automatic date formatting. In ~/Configuration, the article source is searched for one of <a href="#L-983"></a>the {{use xxx dates}} templates. If found, xxx becomes the global date format as xxx-all. If |cs1-dates= in <a href="#L-984"></a>{{use xxx dates}} has legitimate value then that value determines how cs1|2 dates will be rendered. Legitimate <a href="#L-985"></a>values for |cs1-dates= are: <a href="#L-986"></a> l - all dates are rendered with long month names <a href="#L-987"></a> ls - publication dates use long month names; access-/archive-dates use abbreviated month names <a href="#L-988"></a> ly - publication dates use long month names; access-/archive-dates rendered in ymd format <a href="#L-989"></a> s - all dates are rendered with abbreviated (short) month names <a href="#L-990"></a> sy - publication dates use abbreviated month names; access-/archive-dates rendered in ymd format <a href="#L-991"></a> y - all dates are rendered in ymd format <a href="#L-992"></a> <a href="#L-993"></a>the format argument for automatic date formatting will be the format specified by {{use xxx dates}} with the <a href="#L-994"></a>value supplied by |cs1-dates so one of: xxx-l, xxx-ls, xxx-ly, xxx-s, xxx-sy, xxx-y, or simply xxx (|cs1-dates= <a href="#L-995"></a>empty, omitted, or invalid) where xxx shall be either of dmy or mdy. <a href="#L-996"></a> <a href="#L-997"></a>dates are extracted from date_parameters_list, reformatted (if appropriate), and then written back into the <a href="#L-998"></a>list in the new format. Dates in date_parameters_list are presumed here to be valid (no errors). This function <a href="#L-999"></a>returns true when a date has been reformatted, false else. Actual reformatting is done by reformatter(). <a href="#L-1000"></a> <a href="#L-1001"></a>]] <a href="#L-1002"></a> <a href="#L-1003"></a>local function reformat_dates (date_parameters_list, format) <a href="#L-1004"></a> local all = false; -- set to false to skip access- and archive-dates <a href="#L-1005"></a> local len_p = 'l'; -- default publication date length shall be long <a href="#L-1006"></a> local len_a = 'l'; -- default access-/archive-date length shall be long <a href="#L-1007"></a> local result = false; <a href="#L-1008"></a> local new_date; <a href="#L-1009"></a> <a href="#L-1010"></a> if format:match('%a+%-all') then -- manual df keyword; auto df keyword when length not specified in {{use xxx dates}}; <a href="#L-1011"></a> format = format:match('(%a+)%-all'); -- extract the format <a href="#L-1012"></a> all = true; -- all dates are long format dates because this keyword doesn't specify length <a href="#L-1013"></a> elseif format:match('%a+%-[lsy][sy]?') then -- auto df keywords; internal only <a href="#L-1014"></a> all = true; -- auto df applies to all dates; use length specified by capture len_p for all dates <a href="#L-1015"></a> format, len_p, len_a = format:match('(%a+)%-([lsy])([sy]?)'); -- extract the format and length keywords <a href="#L-1016"></a> if 'y' == len_p then -- because allowed by MOS:DATEUNIFY (sort of) range dates and My dates not reformatted <a href="#L-1017"></a> format = 'ymd'; -- override {{use xxx dates}} <a href="#L-1018"></a> elseif (not is_set(len_a)) or (len_p == len_a) then -- no access-/archive-date length specified or same length as publication dates then <a href="#L-1019"></a> len_a = len_p; -- in case len_a not set <a href="#L-1020"></a> end <a href="#L-1021"></a> end -- else only publication dates and they are long <a href="#L-1022"></a> <a href="#L-1023"></a> for param_name, param_val in pairs (date_parameters_list) do -- for each date-holding parameter in the list <a href="#L-1024"></a> if is_set (param_val.val) then -- if the parameter has a value <a href="#L-1025"></a> 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 <a href="#L-1026"></a> for pattern_idx, pattern in pairs (patterns) do <a href="#L-1027"></a> if mw.ustring.match (param_val.val, pattern[1]) then <a href="#L-1028"></a> if all and in_array (param_name, {'access-date', 'archive-date'}) then -- if this date is an access- or archive-date <a href="#L-1029"></a> new_date = reformatter (param_val.val, pattern_idx, (('y' == len_a) and 'ymd') or format, len_a); -- choose ymd or dmy/mdy according to len_a setting <a href="#L-1030"></a> else -- all other dates <a href="#L-1031"></a> new_date = reformatter (param_val.val, pattern_idx, format, len_p); <a href="#L-1032"></a> end <a href="#L-1033"></a> <a href="#L-1034"></a> if new_date then -- set when date was reformatted <a href="#L-1035"></a> date_parameters_list[param_name].val = new_date; -- update date in date list <a href="#L-1036"></a> result = true; -- and announce that changes have been made <a href="#L-1037"></a> break; <a href="#L-1038"></a> end <a href="#L-1039"></a> end -- if <a href="#L-1040"></a> end -- for <a href="#L-1041"></a> end -- if <a href="#L-1042"></a> end -- if <a href="#L-1043"></a> end -- for <a href="#L-1044"></a> return result; -- declare boolean result and done <a href="#L-1045"></a>end <a href="#L-1046"></a> <a href="#L-1047"></a> <a href="#L-1048"></a>--[[--------------------------< D A T E _ H Y P H E N _ T O _ D A S H >---------------------------------------- <a href="#L-1049"></a> <a href="#L-1050"></a>Loops through the list of date-holding parameters and converts any hyphen to an ndash. Not called if the cs1|2 <a href="#L-1051"></a>template has any date errors. <a href="#L-1052"></a> <a href="#L-1053"></a>Modifies the date_parameters_list and returns true if hyphens are replaced, else returns false. <a href="#L-1054"></a> <a href="#L-1055"></a>]] <a href="#L-1056"></a> <a href="#L-1057"></a>local function date_hyphen_to_dash (date_parameters_list) <a href="#L-1058"></a> local result = false; <a href="#L-1059"></a> local n; <a href="#L-1060"></a> for param_name, param_val in pairs(date_parameters_list) do -- for each date-holding parameter in the list <a href="#L-1061"></a> if is_set (param_val.val) and <a href="#L-1062"></a> 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) <a href="#L-1063"></a> param_val.val, n = param_val.val:gsub ('%-', '–'); -- replace any hyphen with ndash <a href="#L-1064"></a> if 0 ~= n then <a href="#L-1065"></a> date_parameters_list[param_name].val = param_val.val; -- update the list <a href="#L-1066"></a> result = true; <a href="#L-1067"></a> end <a href="#L-1068"></a> end <a href="#L-1069"></a> end <a href="#L-1070"></a> return result; -- so we know if any hyphens were replaced <a href="#L-1071"></a>end <a href="#L-1072"></a> <a href="#L-1073"></a> <a href="#L-1074"></a>--[[-------------------------< D A T E _ N A M E _ X L A T E >------------------------------------------------ <a href="#L-1075"></a> <a href="#L-1076"></a>Attempts to translate English date names to local-language date names using names supplied by MediaWiki's <a href="#L-1077"></a>date parser function. This is simple name-for-name replacement and may not work for all languages. <a href="#L-1078"></a> <a href="#L-1079"></a>if xlat_dig is true, this function will also translate Western (English) digits to the local language's digits. <a href="#L-1080"></a>This will also translate ymd dates. <a href="#L-1081"></a> <a href="#L-1082"></a>]] <a href="#L-1083"></a> <a href="#L-1084"></a>local function date_name_xlate (date_parameters_list, xlt_dig) <a href="#L-1085"></a> local xlate; <a href="#L-1086"></a> local mode; -- long or short month names <a href="#L-1087"></a> local modified = false; <a href="#L-1088"></a> local date; <a href="#L-1089"></a> <a href="#L-1090"></a> local sources_t = { <a href="#L-1091"></a> {cfg.date_names.en.long, cfg.date_names.inv_local_long}, -- for translating long English month names to long local month names <a href="#L-1092"></a> {cfg.date_names.en.short, cfg.date_names.inv_local_short}, -- short month names <a href="#L-1093"></a> {cfg.date_names.en.quarter, cfg.date_names.inv_local_quarter}, -- quarter date names <a href="#L-1094"></a> {cfg.date_names.en.season, cfg.date_names.inv_local_season}, -- season date nam <a href="#L-1095"></a> {cfg.date_names.en.named, cfg.date_names.inv_local_named}, -- named dates <a href="#L-1096"></a> } <a href="#L-1097"></a> <a href="#L-1098"></a> local function is_xlateable (month) -- local function to get local date name that replaces existing English-language date name <a href="#L-1099"></a> for _, date_names_t in ipairs (sources_t) do -- for each sequence table in date_names_t <a href="#L-1100"></a> if date_names_t[1][month] then -- if date name is English month (long or short), quarter, season or named and <a href="#L-1101"></a> if date_names_t[2][date_names_t[1][month]] then -- if there is a matching local date name <a href="#L-1102"></a> return date_names_t[2][date_names_t[1][month]]; -- return the local date name <a href="#L-1103"></a> end <a href="#L-1104"></a> end <a href="#L-1105"></a> end <a href="#L-1106"></a> end <a href="#L-1107"></a> <a href="#L-1108"></a> for param_name, param_val in pairs(date_parameters_list) do -- for each date-holding parameter in the list <a href="#L-1109"></a> if is_set(param_val.val) then -- if the parameter has a value <a href="#L-1110"></a> date = param_val.val; <a href="#L-1111"></a> for month in mw.ustring.gmatch (date, '[%a ]+') do -- iterate through all date names in the date (single date or date range) <a href="#L-1112"></a> month = mw.text.trim (month); -- this because quarterly dates contain whitespace <a href="#L-1113"></a> xlate = is_xlateable (month); -- get translate <month>; returns translation or nil <a href="#L-1114"></a> <a href="#L-1115"></a> if xlate then <a href="#L-1116"></a> date = mw.ustring.gsub (date, month, xlate); -- replace the English with the translation <a href="#L-1117"></a> date_parameters_list[param_name].val = date; -- save the translated date <a href="#L-1118"></a> modified = true; <a href="#L-1119"></a> end <a href="#L-1120"></a> end <a href="#L-1121"></a> <a href="#L-1122"></a> if xlt_dig then -- shall we also translate digits? <a href="#L-1123"></a> date = date:gsub ('%d', cfg.date_names.xlate_digits); -- translate digits from Western to 'local digits' <a href="#L-1124"></a> date_parameters_list[param_name].val = date; -- save the translated date <a href="#L-1125"></a> modified = true; <a href="#L-1126"></a> end <a href="#L-1127"></a> end <a href="#L-1128"></a> end <a href="#L-1129"></a> <a href="#L-1130"></a> return modified; <a href="#L-1131"></a>end <a href="#L-1132"></a> <a href="#L-1133"></a> <a href="#L-1134"></a>--[[--------------------------< S E T _ S E L E C T E D _ M O D U L E S >-------------------------------------- <a href="#L-1135"></a> <a href="#L-1136"></a>Sets local imported functions table to same (live or sandbox) as that used by the other modules. <a href="#L-1137"></a> <a href="#L-1138"></a>]] <a href="#L-1139"></a> <a href="#L-1140"></a>local function set_selected_modules (cfg_table_ptr, utilities_page_ptr) <a href="#L-1141"></a> add_prop_cat = utilities_page_ptr.add_prop_cat ; -- import functions from selected Module:Citation/CS1/Utilities module <a href="#L-1142"></a> is_set = utilities_page_ptr.is_set; <a href="#L-1143"></a> in_array = utilities_page_ptr.in_array; <a href="#L-1144"></a> set_message = utilities_page_ptr.set_message; <a href="#L-1145"></a> substitute = utilities_page_ptr.substitute; <a href="#L-1146"></a> wrap_style = utilities_page_ptr.wrap_style; <a href="#L-1147"></a> <a href="#L-1148"></a> cfg = cfg_table_ptr; -- import tables from selected Module:Citation/CS1/Configuration <a href="#L-1149"></a>end <a href="#L-1150"></a> <a href="#L-1151"></a> <a href="#L-1152"></a>--[[--------------------------< A R C H I V E _ D A T E _ C H E C K >------------------------------------------ <a href="#L-1153"></a> <a href="#L-1154"></a>Compare value in |archive-date= with the timestamp in Wayback machine urls. Emits an error message with suggested <a href="#L-1155"></a>date from the |archive-url= timestamp in an appropriate format when the value in |archive-date= does not match <a href="#L-1156"></a>the timestamp. <a href="#L-1157"></a> <a href="#L-1158"></a>this function never called when any date in a cs1|2 template has errors <a href="#L-1159"></a> <a href="#L-1160"></a>error message suggests new |archive-date= value in an appropriate format specified by <df>. <df> is either <a href="#L-1161"></a>|df= or cfg.global_df in that order. If <df> is nil, suggested date has format from |archive-date=. There is <a href="#L-1162"></a>a caveat: when |df=dmy or |df=mdy, the reformatter leaves |access-date= and |archive-date= formats as they are. <a href="#L-1163"></a>The error message suggested date is passed to the formatter as YYYY-MM-DD so when |df=dmy or |df=mdy, the format <a href="#L-1164"></a>is not changed. <a href="#L-1165"></a> <a href="#L-1166"></a>]] <a href="#L-1167"></a> <a href="#L-1168"></a>local function archive_date_check (archive_date, archive_url_timestamp, df) <a href="#L-1169"></a> 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() <a href="#L-1170"></a> <a href="#L-1171"></a> for _, v_t in ipairs ({{'dMy', 'dmy-all'}, {'Mdy', 'mdy-all'}}) do -- is |archive-date= format dmy or mdy? <a href="#L-1172"></a> if archive_date:match (patterns[v_t[1]][1]) then -- does the pattern match? <a href="#L-1173"></a> archive_date_format = cfg.keywords_xlate[v_t[2]]; -- get appropriate |df= supported keyword from the i18n translator table <a href="#L-1174"></a> break; <a href="#L-1175"></a> end <a href="#L-1176"></a> end <a href="#L-1177"></a> <a href="#L-1178"></a> local dates_t = {}; <a href="#L-1179"></a> dates_t['archive-date'] = {val=archive_date, name=''}; -- setup to call reformat_dates(); never called when errors so <name> unset as not needed <a href="#L-1180"></a> reformat_dates (dates_t, 'dmy-y'); -- reformat |archive-date= to ymd; 'dmy' used here to spoof reformat_dates() <a href="#L-1181"></a> 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 <a href="#L-1182"></a> <a href="#L-1183"></a> if dates_t['archive-date'].val == archive_url_date then -- are the two dates the same <a href="#L-1184"></a> return; -- yes, done <a href="#L-1185"></a> else <a href="#L-1186"></a> dates_t['archive-date'] = {val=archive_url_date, name=''}; -- setup to call reformat_dates() with the timestamp date <a href="#L-1187"></a> reformat_dates (dates_t, df or archive_date_format); -- reformat timestamp to format specified by <df> or format used in |archive-date= <a href="#L-1188"></a> archive_url_date = dates_t['archive-date'].val; <a href="#L-1189"></a> set_message ('err_archive_date_url_ts_mismatch', archive_url_date); -- emit an error message <a href="#L-1190"></a> end <a href="#L-1191"></a>end <a href="#L-1192"></a> <a href="#L-1193"></a> <a href="#L-1194"></a>--[[--------------------------< E X P O R T E D F U N C T I O N S >------------------------------------------ <a href="#L-1195"></a>]] <a href="#L-1196"></a> <a href="#L-1197"></a>return { -- return exported functions <a href="#L-1198"></a> archive_date_check = archive_date_check, <a href="#L-1199"></a> date_hyphen_to_dash = date_hyphen_to_dash, <a href="#L-1200"></a> date_name_xlate = date_name_xlate, <a href="#L-1201"></a> dates = dates, <a href="#L-1202"></a> reformat_dates = reformat_dates, <a href="#L-1203"></a> set_selected_modules = set_selected_modules, <a href="#L-1204"></a> year_date_check = year_date_check, <a href="#L-1205"></a> } </pre></div>   </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Rudishwa kutoka "<a dir="ltr" href="https://sw.wikipedia.org/w/index.php?title=Module:Citation/CS1/Date_validation&oldid=1337018">https://sw.wikipedia.org/w/index.php?title=Module:Citation/CS1/Date_validation&oldid=1337018</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Ukurasa huu umebadilishwa kwa mara ya mwisho tarehe 25 Mei 2024, saa 06:05.</li> <li id="footer-info-copyright">Maandishi yanapatikana chini ya leseni ya <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution-ShareAlike License</a>; matakwa mengine yanaweza kutakiwa. 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