モジュール:Coordinates

--[[ This module is intended to replace the functionality of {{Coord}} and related templates.  It provides several methods, including  {{#invoke:Coordinates | coord }} : General function formatting and displaying coordinate values.  {{#invoke:Coordinates | dec2dms }} : Simple function for converting decimal degree values to DMS format.  {{#invoke:Coordinates | dms2dec }} : Simple function for converting DMS format to decimal degree format.  {{#invoke:Coordinates | link }} : Export the link used to reach the tools  ]]  require('strict')  local math_mod = require("Module:Math") local coordinates = {};  local current_page = mw.title.getCurrentTitle() local page_name = mw.uri.encode( current_page.prefixedText, 'WIKI' ); local coord_link = 'https://geohack.toolforge.org/geohack.php?language=ja&pagename=' .. page_name .. '&params=' local templatestyles = 'Module:Coordinates/styles.css'  --[[ Helper function, replacement for {{coord/display/title}} ]] local function displaytitle(s, notes) 	local l = "[[地理座標系|座標]]: " .. s 	local co = '<span id="coordinates">' .. l .. notes .. '</span>'; 	return '<span style="font-size: small;">' .. co .. '</span>'; end  --[[ Helper function, Replacement for {{coord/display/inline}} ]] local function displayinline(s, notes) 	return s .. notes end  --[[ Helper function, used in detecting DMS formatting ]] local function dmsTest(first, second) 	if type(first) ~= 'string' or type(second) ~= 'string' then 		return nil 	end 	local s = (first .. second):upper() 	return s:find('^[NS][EW]$') or s:find('^[EW][NS]$') end   --[[ Wrapper function to grab args, see Module:Arguments for this function's documentation. ]] local function makeInvokeFunc(funcName) 	return function (frame) 		local args = require('Module:Arguments').getArgs(frame, { 			wrappers = 'Template:Coord' 		}) 		return coordinates[funcName](args, frame) 	end end  --[[ Helper function, handle optional args. ]] local function optionalArg(arg, supplement) 	return arg and arg .. supplement or '' end  --[[ Formats any error messages generated for display ]] local function errorPrinter(errors) 	local result = "" 	for i,v in ipairs(errors) do 		local errorHTML = '<strong class="error">座標: ' .. v[2] .. '</strong>' 		result = result .. errorHTML .. "<br />" 	end 	return result end  --[[ Determine the required CSS class to display coordinates  Usually geo-nondefault is hidden by CSS, unless a user has overridden this for himself default is the mode as specificied by the user when calling the {{coord}} template mode is the display mode (dec or dms) that we will need to determine the css class for ]] local function displayDefault(default, mode) 	if default == "" then 		default = "dec" 	end  	if default == mode then 		return "geo-default" 	else 		return "geo-nondefault" 	end end  --[[ specPrinter  Output formatter.  Takes the structure generated by either parseDec or parseDMS and formats it for inclusion on Wikipedia. ]] local function specPrinter(args, coordinateSpec) 	local uriComponents = coordinateSpec["param"] 	if uriComponents == "" then 		-- RETURN error, should never be empty or nil 		return "エラー: paramが空です" 	end 	if args["name"] then 		uriComponents = uriComponents .. "&title=" .. mw.uri.encode(coordinateSpec["name"]) 	end  	local geodmshtml = '<span class="geo-dms" title="この位置の地図や航空写真などにリンクするページを表示します">' 			.. '<span class="latitude">' .. coordinateSpec["dms-lat"] .. '</span> ' 			.. '<span class="longitude">' ..coordinateSpec["dms-long"] .. '</span>' 			.. '</span>'  	local lat = tonumber( coordinateSpec["dec-lat"] ) or 0 	local geodeclat 	if lat < 0 then 		-- FIXME this breaks the pre-existing precision 		geodeclat = "南緯" .. tostring(coordinateSpec["dec-lat"]):sub(2) .. "度" 	else 		geodeclat = "北緯" .. (coordinateSpec["dec-lat"] or 0) .. "度" 	end  	local long = tonumber( coordinateSpec["dec-long"] ) or 0 	local geodeclong 	if long < 0 then 		-- FIXME does not handle unicode minus 		geodeclong = "西経" .. tostring(coordinateSpec["dec-long"]):sub(2) .. "度" 	else 		geodeclong = "東経" .. (coordinateSpec["dec-long"] or 0) .. "度" 	end  	local geodechtml = '<span class="geo-dec" title="この位置の地図や航空写真などにリンクするページを表示します">' 			.. geodeclat .. ' ' 			.. geodeclong 			.. '</span>'  	local geonumhtml = '<span class="geo">' 			.. coordinateSpec["dec-lat"] .. '; ' 			.. coordinateSpec["dec-long"] 			.. '</span>'  	local inner = '<span class="' .. displayDefault(coordinateSpec["default"], "dms" ) .. '">' .. geodmshtml .. '</span>' 				.. '<span class="geo-multi-punct">&#xfeff; / &#xfeff;</span>' 				.. '<span class="' .. displayDefault(coordinateSpec["default"], "dec" ) .. '">';  	if not args["name"] then 		inner = inner .. geodechtml 				.. '<span style="display:none">&#xfeff; / ' .. geonumhtml .. '</span></span>' 	else 		inner = inner .. '<span class="vcard">' .. geodechtml 				.. '<span style="display:none">&#xfeff; / ' .. geonumhtml .. '</span>' 				.. '<span style="display:none">&#xfeff; (<span class="fn org">' 				.. args["name"] .. '</span>)</span></span></span>' 	end  	return mw.getCurrentFrame():extensionTag{ name = 'templatestyles', args = { src = templatestyles} } 	       .. '<span class="plainlinks nourlexpansion">' 	       .. '[' .. coord_link .. uriComponents .. ' ' .. inner .. ']' 	       .. '</span>' end  --[[ Helper function, convert decimal to degrees ]] local function convert_dec2dms_d(coordinate) 	local d = math_mod._round( coordinate, 0 ) .. "°" 	return d .. "" end  --[[ Helper function, convert decimal to degrees and minutes ]] local function convert_dec2dms_dm(coordinate) 	coordinate = math_mod._round( coordinate * 60, 0 ); 	local m = coordinate % 60; 	coordinate = math.floor( (coordinate - m) / 60 ); 	local d = coordinate % 360 .."度"  	return d .. string.format( "%02d分", m ) end  --[[ Helper function, convert decimal to degrees, minutes, and seconds ]] local function convert_dec2dms_dms(coordinate) 	coordinate = math_mod._round( coordinate * 60 * 60, 0 ); 	local s = coordinate % 60 	coordinate = math.floor( (coordinate - s) / 60 ); 	local m = coordinate % 60 	coordinate = math.floor( (coordinate - m) / 60 ); 	local d = coordinate % 360 .."度"  	return d .. string.format( "%02d分", m ) .. string.format( "%02d秒", s ) end  --[[ Helper function, convert decimal latitude or longitude to degrees, minutes, and seconds format based on the specified precision. ]] local function convert_dec2dms(coordinate, firstPrefix, secondPrefix, precision) 	local coord = tonumber(coordinate) 	local prefix 	if coord >= 0 then 		prefix = firstPrefix 	else 		prefix = secondPrefix 	end  	precision = precision:lower(); 	if precision == "dms" then 		return prefix .. convert_dec2dms_dms( math.abs( coord ) ); 	elseif precision == "dm" then 		return prefix .. convert_dec2dms_dm( math.abs( coord ) ); 	elseif precision == "d" then 		return prefix .. convert_dec2dms_d( math.abs( coord ) ); 	end end  --[[ Convert DMS format into a N or E decimal coordinate ]] local function convert_dms2dec(direction, degrees_str, minutes_str, seconds_str) 	local degrees = tonumber(degrees_str) 	local minutes = tonumber(minutes_str) or 0 	local seconds = tonumber(seconds_str) or 0  	local factor = 1 	direction = direction:gsub('^ *(.-) *$', '%1'); 	if direction == "S" or direction == "W" then 		factor = -1 	end  	local precision = 0 	if seconds_str then 		precision = 5 + math.max( math_mod._precision(seconds_str), 0 ); 	elseif minutes_str and minutes_str ~= '' then 		precision = 3 + math.max( math_mod._precision(minutes_str), 0 ); 	else 		precision = math.max( math_mod._precision(degrees_str), 0 ); 	end  	local decimal = factor * (degrees+(minutes+seconds/60)/60) 	return string.format( "%." .. precision .. "f", decimal ) -- not tonumber since this whole thing is string based. end  --[[ Checks input values to for out of range errors. ]] local function validate( lat_d, lat_m, lat_s, long_d, long_m, long_s, source, strong ) 	local errors = {}; 	lat_d = tonumber( lat_d ) or 0; 	lat_m = tonumber( lat_m ) or 0; 	lat_s = tonumber( lat_s ) or 0; 	long_d = tonumber( long_d ) or 0; 	long_m = tonumber( long_m ) or 0; 	long_s = tonumber( long_s ) or 0;  	if strong then 		if lat_d < 0 then 			table.insert(errors, {source, "緯度が0度を下回っていますが南北が指定されています"}) 		end 		if long_d < 0 then 			table.insert(errors, {source, "経度が0度を下回っていますが東西が指定されています"}) 		end 		--[[ 		#coordinates is inconsistent about whether this is an error.  If globe: is 		specified, it won't error on this condition, but otherwise it will.  		For not simply disable this check.  		if long_d > 180 then 			table.insert(errors, {source, "経度が180度を上回っていますが東西が指定されています"}) 		end 		]] 	end  	if lat_d > 90 then 		table.insert(errors, {source, "緯度の度が90を上回っています"}) 	end 	if lat_d < -90 then 		table.insert(errors, {source, "緯度の度が-90を下回っています"}) 	end 	if lat_m >= 60 then 		table.insert(errors, {source, "緯度の分が60以上です"}) 	end 	if lat_m < 0 then 		table.insert(errors, {source, "緯度の分が0を下回っています"}) 	end 	if lat_s >= 60 then 		table.insert(errors, {source, "緯度の秒が60以上です"}) 	end 	if lat_s < 0 then 		table.insert(errors, {source, "緯度の秒が0を下回っています"}) 	end 	if long_d >= 360 then 		table.insert(errors, {source, "経度の度が360以上です"}) 	end 	if long_d <= -360 then 		table.insert(errors, {source, "経度の度が-360以下です"}) 	end 	if long_m >= 60 then 		table.insert(errors, {source, "経度の分が60以上です"}) 	end 	if long_m < 0 then 		table.insert(errors, {source, "経度の分が0を下回っています"}) 	end 	if long_s >= 60 then 		table.insert(errors, {source, "経度の秒が60以上です"}) 	end 	if long_s < 0 then 		table.insert(errors, {source, "経度の秒が0を下回っています"}) 	end  	return errors; end  --[[ parseDec  Transforms decimal format latitude and longitude into the structure to be used in displaying coordinates ]] local function parseDec( lat, long, format ) 	local coordinateSpec = {} 	local errors = {}  	if not long then 		return nil, {{"parseDec", "経度が指定されていません"}} 	elseif not tonumber(long) then 		return nil, {{"parseDec", "経度が数値として認識できません: " .. long}} 	end  	errors = validate( lat, nil, nil, long, nil, nil, 'parseDec', false ); 	coordinateSpec["dec-lat"]  = lat; 	coordinateSpec["dec-long"] = long;  	local mode = coordinates.determineMode( lat, long ); 	coordinateSpec["dms-lat"]  = convert_dec2dms( lat, "北緯", "南緯", mode)  -- {{coord/dec2dms|{{{1}}}|N|S|{{coord/prec dec|{{{1}}}|{{{2}}}}}}} 	coordinateSpec["dms-long"] = convert_dec2dms( long, "東経", "西経", mode)  -- {{coord/dec2dms|{{{2}}}|E|W|{{coord/prec dec|{{{1}}}|{{{2}}}}}}}  	if format then 		coordinateSpec.default = format 	else 		coordinateSpec.default = "dec" 	end  	return coordinateSpec, errors end  --[[ parseDMS  Transforms degrees, minutes, seconds format latitude and longitude into the structure to be used in displaying coordinates ]] local function parseDMS( lat_d, lat_m, lat_s, lat_f, long_d, long_m, long_s, long_f, format ) 	local coordinateSpec, errors, backward = {}, {}  	lat_f = lat_f:upper(); 	long_f = long_f:upper();  	-- Check if specified backward 	if lat_f == 'E' or lat_f == 'W' then 		lat_d, long_d, lat_m, long_m, lat_s, long_s, lat_f, long_f, backward = long_d, lat_d, long_m, lat_m, long_s, lat_s, long_f, lat_f, true; 	end  	errors = validate( lat_d, lat_m, lat_s, long_d, long_m, long_s, 'parseDMS', true ); 	if not long_d then 		return nil, {{"parseDMS", "経度が指定されていません" }} 	elseif not tonumber(long_d) then 		return nil, {{"parseDMS", "経度が数値として認識できません:" .. long_d }} 	end  	if not lat_m and not lat_s and not long_m and not long_s and #errors == 0 then 		if math_mod._precision( lat_d ) > 0 or math_mod._precision( long_d ) > 0 then 			if lat_f:upper() == 'S' then 				lat_d = '-' .. lat_d; 			end 			if long_f:upper() == 'W' then 				long_d = '-' .. long_d; 			end  			return parseDec( lat_d, long_d, format ); 		end 	end  	coordinateSpec["dms-lat"]  = (lat_f=="N" and "北緯" or "南緯") .. lat_d.."度"..optionalArg(lat_m,"分") .. optionalArg(lat_s,"秒") 	coordinateSpec["dms-long"] = (long_f=="E" and "東経" or "西経") .. long_d.."度"..optionalArg(long_m,"分") .. optionalArg(long_s,"秒") 	coordinateSpec["dec-lat"]  = convert_dms2dec(lat_f, lat_d, lat_m, lat_s) -- {{coord/dms2dec|{{{4}}}|{{{1}}}|0{{{2}}}|0{{{3}}}}} 	coordinateSpec["dec-long"] = convert_dms2dec(long_f, long_d, long_m, long_s) -- {{coord/dms2dec|{{{8}}}|{{{5}}}|0{{{6}}}|0{{{7}}}}}  	if format then 		coordinateSpec.default = format 	else 		coordinateSpec.default = "dms" 	end  	return coordinateSpec, errors, backward end  --[[ Check the input arguments for coord to determine the kind of data being provided and then make the necessary processing. ]] local function formatTest(args) 	local result, errors 	local backward, primary = false, false  	local function getParam(args, lim) 		local ret = {} 		for i = 1, lim do 			ret[i] = args[i] or '' 		end 		return table.concat(ret, '_') 	end  	if not args[1] then 		-- no lat logic 		return errorPrinter( {{"formatTest", "緯度が指定されていません"}} ) 	elseif not tonumber(args[1]) then 		-- bad lat logic 		return errorPrinter( {{"formatTest", "緯度が数値として認識できません:" .. args[1]}} ) 	elseif not args[4] and not args[5] and not args[6] then 		-- dec logic 		result, errors = parseDec(args[1], args[2], args.format) 		if not result then 			return errorPrinter(errors); 		end 		-- formatting for geohack: geohack expects D_N_D_E notation or D;D notation 		-- wikiminiatlas doesn't support D;D notation 		-- #coordinates parserfunction doesn't support negative decimals with NSWE 		result.param = table.concat({ 			math.abs(tonumber(args[1])), 			((tonumber(args[1]) or 0) < 0) and 'S' or 'N', 			math.abs(tonumber(args[2])), 			((tonumber(args[2]) or 0) < 0) and 'W' or 'E', 			args[3] or ''}, '_') 	elseif dmsTest(args[4], args[8]) then 		-- dms logic 		result, errors, backward = parseDMS(args[1], args[2], args[3], args[4], 			args[5], args[6], args[7], args[8], args.format) 		if args[10] then 			table.insert(errors, {'formatTest', '座標オプションが認識できません'}) 		end 		if not result then 			return errorPrinter(errors) 		end 		result.param = getParam(args, 9) 	elseif dmsTest(args[3], args[6]) then 		-- dm logic 		result, errors, backward = parseDMS(args[1], args[2], nil, args[3], 			args[4], args[5], nil, args[6], args['format']) 		if args[8] then 			table.insert(errors, {'formatTest', '座標オプションが認識できません'}) 		end 		if not result then 			return errorPrinter(errors) 		end 		result.param = getParam(args, 7) 	elseif dmsTest(args[2], args[4]) then 		-- d logic 		result, errors, backward = parseDMS(args[1], nil, nil, args[2], 			args[3], nil, nil, args[4], args.format) 		if args[6] then 			table.insert(errors, {'formatTest', '座標オプションが認識できません'}) 		end 		if not result then 			return errorPrinter(errors) 		end 		result.param = getParam(args, 5) 	else 		-- Error 		return errorPrinter({{"formatTest", "引数の形式が認識できません"}}) .. '[[Category:座標タグに誤りがあるページ]]' 	end 	result.name = args.name  	local extra_param = {'dim', 'globe', 'scale', 'region', 'source', 'type'} 	for _, v in ipairs(extra_param) do 		if args[v] then 			table.insert(errors, {'formatTest', '引数: "' .. v .. '=" は "' .. v .. ':" という形式でなければいけません'}) 		end 	end  	local ret = specPrinter(args, result) 	if #errors > 0 then 		ret = ret .. ' ' .. errorPrinter(errors) .. '[[Category:座標タグに誤りがあるページ]]' 	end 	return ret, backward end  --[[ Generate Wikidata tracking categories. ]] local function makeWikidataCategories(qid) 	local ret 	if mw.wikibase and current_page.namespace == 0 then 		local entity = qid and mw.wikibase.getEntityObject(qid) or mw.wikibase.getEntityObject() 		if entity and entity.claims and entity.claims.P625 and entity.claims.P625[1] then 			local snaktype = entity.claims.P625[1].mainsnak.snaktype 			if snaktype == 'value' then 				-- coordinates exist both here and on Wikidata, and can be compared. 				ret = 'ウィキデータにある座標' 			elseif snaktype == 'somevalue' then 				ret = 'ウィキデータで不明な値となっている座標' 			elseif snaktype == 'novalue' then 				ret = 'ウィキデータで値なしとなっている座標' 			end 		else 			-- We have to either import the coordinates to Wikidata or remove them here. 			ret = 'ウィキデータにない座標' 		end 	end 	if ret then 		return string.format('[[Category:%s]]', ret) 	else 		return '' 	end end  --[[ link  Simple function to export the coordinates link for other uses.  Usage: 	{{#invoke:Coordinates | link }}  ]] function coordinates.link(frame) 	return coord_link; end  --[[ dec2dms  Wrapper to allow templates to call dec2dms directly.  Usage: 	{{#invoke:Coordinates | dec2dms | decimal_coordinate | positive_suffix | 		negative_suffix | precision }}  decimal_coordinate is converted to DMS format.  If positive, the positive_suffix is appended (typical N or E), if negative, the negative suffix is appended.  The specified precision is one of 'D', 'DM', or 'DMS' to specify the level of detail to use. ]] coordinates.dec2dms = makeInvokeFunc('_dec2dms') function coordinates._dec2dms(args) 	local coordinate = args[1] 	local firstPostfix = args[2] or '' 	local secondPostfix = args[3] or '' 	local precision = args[4] or ''  	return convert_dec2dms(coordinate, firstPostfix, secondPostfix, precision) end  --[[ Helper function to determine whether to use D, DM, or DMS format depending on the precision of the decimal input. ]] function coordinates.determineMode( value1, value2 ) 	local precision = math.max( math_mod._precision( value1 ), math_mod._precision( value2 ) ); 	if precision <= 0 then 		return 'd' 	elseif precision <= 2 then 		return 'dm'; 	else 		return 'dms'; 	end end  --[[ dms2dec  Wrapper to allow templates to call dms2dec directly.  Usage: 	{{#invoke:Coordinates | dms2dec | direction_flag | degrees | 		minutes | seconds }}  Converts DMS values specified as degrees, minutes, seconds too decimal format. direction_flag is one of N, S, E, W, and determines whether the output is positive (i.e. N and E) or negative (i.e. S and W). ]] coordinates.dms2dec = makeInvokeFunc('_dms2dec') function coordinates._dms2dec(args) 	local direction = args[1] 	local degrees = args[2] 	local minutes = args[3] 	local seconds = args[4]  	return convert_dms2dec(direction, degrees, minutes, seconds) end  --[[ coord  Main entry point for Lua function to replace {{coord}}  Usage: 	{{#invoke:Coordinates | coord }} 	{{#invoke:Coordinates | coord | lat | long }} 	{{#invoke:Coordinates | coord | lat | lat_flag | long | long_flag }} 	...  	Refer to {{coord}} documentation page for many additional parameters and 	configuration options.  Note: This function provides the visual display elements of {{coord}}.  In order to load coordinates into the database, the {{#coordinates:}} parser function must also be called, this is done automatically in the Lua version of {{coord}}. ]] coordinates.coord = makeInvokeFunc('_coord') function coordinates._coord(args) 	if not tonumber(args[1]) and not args[2] then 		args[3] = args[1]; args[1] = nil 		local entity = mw.wikibase.getEntityObject(args.qid) 		if entity 			and entity.claims 			and entity.claims.P625 			and entity.claims.P625[1].mainsnak.snaktype == 'value' 		then 			local precision = entity.claims.P625[1].mainsnak.datavalue.value.precision 			args[1] = entity.claims.P625[1].mainsnak.datavalue.value.latitude 			args[2] = entity.claims.P625[1].mainsnak.datavalue.value.longitude 			if precision then 				precision = -math_mod._round(math.log(precision)/math.log(10),0) 				args[1] = math_mod._round(args[1],precision) 				args[2] = math_mod._round(args[2],precision) 			end 		end 	end  	local contents, backward = formatTest(args) 	local Notes = args.notes or '' 	local Display = args.display and args.display:lower() or 'inline'  	local function isInline(s) 		-- Finds whether coordinates are displayed inline. 		return s:find('inline') ~= nil or s == 'i' or s == 'it' or s == 'ti' 	end 	local function isInTitle(s) 		-- Finds whether coordinates are displayed in the title. 		return s:find('title') ~= nil or s == 't' or s == 'it' or s == 'ti' 	end  	local function coord_wrapper(in_args) 		-- Calls the parser function {{#coordinates:}}. 		return mw.getCurrentFrame():callParserFunction('#coordinates', in_args) or '' 	end  	local text = '' 	if isInline(Display) then 		text = text .. displayinline(contents, Notes) 	end 	if isInTitle(Display) then 		text = text 			.. displaytitle(contents, Notes) 			.. makeWikidataCategories(args.qid) 	end 	if not args.nosave then 		local page_title, count = mw.title.getCurrentTitle(), 1 		if backward then 			local tmp = {} 			while not string.find((args[count-1] or ''), '[EW]') do tmp[count] = (args[count] or ''); count = count+1 end 			tmp.count = count; count = 2*(count-1) 			while count >= tmp.count do table.insert(tmp, 1, (args[count] or '')); count = count-1 end 			for i, v in ipairs(tmp) do args[i] = v end 		else 			while count <= 9 do args[count] = (args[count] or ''); count = count+1 end 		end 		if isInTitle(Display) and not page_title.isTalkPage and page_title.subpageText ~= 'doc' and page_title.subpageText ~= 'testcases' then args[10] = 'primary' end 		args.notes, args.format, args.display = nil 		text = text .. coord_wrapper(args) 	end 	return text end  --[[ coord2text  Extracts a single value from a transclusion of {{Coord}}. IF THE GEOHACK LINK SYNTAX CHANGES THIS FUNCTION MUST BE MODIFIED.  Usage:      {{#invoke:Coordinates | coord2text | {{Coord}} | parameter }}  Valid values for the second parameter are: lat (signed integer), long (signed integer), type, scale, dim, region, globe, source  ]] function coordinates.coord2text(frame) 	if frame.args[1] == '' or frame.args[2] == '' or not frame.args[2] then return nil end 	frame.args[2] = mw.text.trim(frame.args[2]) 	if frame.args[2] == 'lat' or frame.args[2] == 'long' then 		local result, negative = mw.text.split((mw.ustring.match(frame.args[1],'[%.%d]+°[NS] [%.%d]+°[EW]') or ''), ' ') 		if table.maxn(result) ~= 1 then											-- input format: '57.30611°N 4.45889°E' 			if frame.args[2] == 'lat' then 				result, negative = result[1], 'S' 			else 				result, negative = result[2], 'W' 			end 			result = mw.text.split(result, '°') 			if result[2] == negative then result[1] = '-'..result[1] end 			return result[1] 		else																	-- input format: '北緯57.30611度 東経4.45889度' 			result = mw.text.split(mw.ustring.match(frame.args[1],'[南北]緯%-?[%.%d]+度 [東西]経%-?[%.%d]+度') or '', ' ') 			if frame.args[2] == 'lat' then 				result, negative = result[1], '南' 			else 				result, negative = result[2], '西' 			end 			result = mw.text.split(result, '[経緯度]') 			if result[1] == negative then result[2] = '-'..result[2] end 			return result[2] 		end 	else 		return mw.ustring.match(frame.args[1], 'params=.-_'..frame.args[2]..':(.-)[ _]') 	end end  --[[ coordinsert  Injects some text into the Geohack link of a transclusion of {{Coord}} (if that text isn't already in the transclusion). Outputs the modified transclusion of {{Coord}}. IF THE GEOHACK LINK SYNTAX CHANGES THIS FUNCTION MUST BE MODIFIED.  Usage:      {{#invoke:Coordinates | coordinsert | {{Coord}} | parameter:value | parameter:value | … }}  Do not make Geohack unhappy by inserting something which isn't mentioned in the {{Coord}} documentation.  ]] function coordinates.coordinsert(frame) 	for i, v in ipairs(frame.args) do 		if i ~= 1 then 			if not mw.ustring.find(frame.args[1], (mw.ustring.match(frame.args[i], '^(.-:)') or '')) then 				frame.args[1] = mw.ustring.gsub(frame.args[1], '(params=.-)_? ', '%1_'..frame.args[i]..' ') 			end 		end 	end 	if frame.args.name then 		if not mw.ustring.find(frame.args[1], '<span class="vcard">') then 			local namestr = frame.args.name 			frame.args[1] = mw.ustring.gsub(frame.args[1], 				'(<span class="geo%-default">)(<span[^<>]*>[^<>]*</span><span[^<>]*>[^<>]*<span[^<>]*>[^<>]*</span></span>)(</span>)', 				'%1<span class="vcard">%2<span style="display:none">&#xfeff; (<span class="fn org">' .. namestr .. '</span>)</span></span>%3') 			frame.args[1] = mw.ustring.gsub(frame.args[1], '(&params=[^&"<>%[%] ]*) ', '%1&title=' .. mw.uri.encode(namestr) .. ' ') 		end 	end 	return frame.args[1] end  return coordinates