Module:Coordinates/sandbox2

--[[ This module is intended to replace the functionality of °N, °W and related templates. It provides several methods, including

coordinate values.

degree values to DMS format.

to decimal degree format.



]]

require('strict')

local math_mod = require("Module:Math") local mTemplateInvocation = require( 'Module:Template invocation' ) local mTableTools = require('Module:TableTools') local coordinates = {}

local current_page = mw.title.getCurrentTitle local page_name = mw.uri.encode( current_page.prefixedText, 'WIKI' ) local coord_link = '//geohack.toolforge.org/geohack.php?pagename=' .. page_name .. '&params=' local templatestyles = 'Module:Coordinates/styles.css'

-- Helper function, replacement for local function displaytitle(s, notes) local l = "Coordinates: " .. s	local co = ' ' .. l .. notes .. ' ';	return mw.getCurrentFrame:extensionTag{ name = 'indicator', args = { name = 'coordinates' }, content = ' ' .. co .. ' '	}; end

-- Helper function, Replacement for 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 = ' Coordinates: ' .. v[2] .. ' '		result = result .. errorHTML .. " "	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 °N, °W 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

-- JSON doesn't handle .78 values, only 0.78 we do want to keep our precision though, so tonumber is bad. local function jsonSafeNumber(numberString) numberString = numberString:gsub('^(%.)', '0.', 1) return numberString:gsub('^(-%.)', '-0.', 1) end

--[[ addHemisphereToDec

Rewrite the decimal format to also denote the hemisphere abbreviations This is a typical Template:Coord presentation and rather uncommon outside of en.wp ]] local function addHemisphereToDec( latitude, longitude ) local lat = tonumber( latitude ) or 0 local returnLat if lat < 0 then -- FIXME this breaks the pre-existing precision returnLat = tostring(latitude):sub(2) .. "°S" else returnLat = (latitude or 0) .. "°N" end

local long = tonumber( longitude ) or 0 local returnLong if long < 0 then -- FIXME does not handle unicode minus returnLong = tostring(longitude):sub(2) .. "°W" else returnLong = (longitude or 0) .. "°E" end return returnLat, returnLong end

--[[ splitParam

Split the Geohack parameter string and convert it into an object. ]] local function splitParam( param ) local out = {} for pair in mw.text.gsplit( param, '_', true ) do		local keyValue = mw.text.split( pair, ':', true ) if #keyValue == 2 then out[keyValue[1]] = keyValue[2] end end return out end

--[[ geohackTypeToMarkerSymbol

Convert from Geohack's type to a Kartographer marker symbol ]] local function geohackTypeToMarkerSymbol(type, population) -- https://en.wikipedia.org/wiki/Template:Coord#type:T -- https://www.mediawiki.org/wiki/Extension:GeoData -- https://www.mediawiki.org/wiki/Help:Extension:Kartographer/Icons local maplinkMarkerSymbol = 'circle' local markerSymbols = { country = 'city', adm1st = 'city', -- state, provence adm2nd = 'city', -- county adm3rd = 'city', -- municipality city = 'city', -- actually comes with size param. map to city/town/village airport = 'airport', edu = 'college', -- map to college or school forest = 'park', glacier = 'triangle-stroked', mountain = 'triangle-stroked', pass = 'cross', railwaystation = 'rail', -- rail, rail-above, rail-light, rail-metro, rail-underground river = 'water', waterbody = 'water', satellite = 'rocket', camera = 'camera', isle = 'circle-stroked', event = 'star-stroked', landmark = 'star' }	if markerSymbols[type] then maplinkMarkerSymbol = markerSymbols[type] end -- https://meta.wikimedia.org/wiki/WikiMiniAtlas population = tonumber(population) if type == 'city' and population then if population < 100000 then -- town maplinkMarkerSymbol = 'town' elseif population < 10000 then -- village maplinkMarkerSymbol = 'village' end end return maplinkMarkerSymbol end

--[[ geohackTypeToScale

Convert from Geohack's types to Geohack's scale levels ]] local function geohackTypeToScale(type, population) local typeScale = { adm1st = 1000000, adm2nd = 300000, adm3rd = 100000, airport = 30000, city = 100000, country = 10000000, edu = 10000, event = 50000, forest = 50000, glacier = 50000, isle = 100000, landmark = 10000, mountain = 100000, pass = 10000, railwaystation = 10000, river = 100000, satellite = 10000000, waterbody = 100000, camera = 10000 }	local scale if typeScale[type] then scale = typeScale[type] end population = tonumber(population) if type == 'city' and population and population > 0 then -- assume city is a circle with density of 1000/square kilometer -- compute diameter scale = 356.82 * math.sqrt(population) -- don't zoom in too far if scale < 30000 then scale = 30000 end end return scale end

local log2 = 0.693147181

--[[ geohackTypeToScale

Convert from Geohack's scale levels to OSM style zoom levels as used by ]] local function geohackScaleToMapZoom(scale) scale = tonumber(scale) if not scale or scale <= 0 then return end -- Empirically derived from geohack behavior return 29.214-math.log(scale)/log2 end

local function geohackDimToMapZoom(dim, units) dim = tonumber(dim) if not dim or dim <= 0 then return end if units and string.lower(units) == 'km' then dim = dim*1000 end -- Empirically derived from geohack behavior return 25.892-math.log(dim)/log2 end

local function labelForQID(qid) local entity = mw.wikibase and qid and (mw.wikibase.getEntityObject(qid) or mw.wikibase.getEntityObject) if entity then return entity:getLabel end return nil end

--[[ coordLinkRenderer

Render a traditional coord-style geohacklink based on the provided information ]] local function coordLinkRenderer(args, coordinateSpec) local uriComponents = coordinateSpec["param"] if uriComponents == "" then -- RETURN error, should never be empty or nil return "ERROR param was empty" end if args["name"] then uriComponents = uriComponents .. "&title=" .. mw.uri.encode(coordinateSpec["name"]) end

local geodmshtml = '' .. ' ' .. coordinateSpec["dms-lat"] .. ' '			.. ' ' ..coordinateSpec["dms-long"] .. ' '			.. ' '

local geodeclat, geodeclong = addHemisphereToDec( coordinateSpec['dec-lat'], coordinateSpec['dec-long']) local geodechtml = '' .. geodeclat .. ' '			.. geodeclong .. ' '

local geonumhtml = ' ' .. coordinateSpec["dec-lat"] .. '; '			.. coordinateSpec["dec-long"] .. ' '

local inner = '' .. geodmshtml .. ' '				.. ' &#xfeff; / &#xfeff; ' .. '';

if not args["name"] then inner = inner .. geodechtml .. ' &#xfeff; / ' .. geonumhtml .. ' '	else inner = inner .. ' ' .. geodechtml .. ' &#xfeff; / ' .. geonumhtml .. ' '				.. ' &#xfeff; ( '				.. args["name"] .. ' )  ' end return '[' .. coord_link .. uriComponents .. ' ' .. inner .. ']' end

--[[ kartographerRenderer

Render a Kartographer based on the provided information ]] local function kartographerRenderer(args, coordinateSpec) -- we should bring the useful geohack params to template level -- where they can easily be used in TemplateData etc.	-- then render those to geohack links local params = splitParam( coordinateSpec.param ) local type, hasPopulationInType = string.gsub( string.lower( params.type or  ), '%(.+$',  )	-- parse the population number	local population	if hasPopulationInType == 1 then		population = string.match( params.type, '[%d,]+')		population = string.gsub(population, ',', '')	end

local dim, units = string.match(params.dim or '', '^(%d+)(%a*)$') local scale = tonumber(params.scale) or geohackTypeToScale(type, population) local zoom = geohackScaleToMapZoom(scale) or geohackDimToMapZoom(dim, units) or 12

-- compensate for Mercator projection local lat = tonumber(coordinateSpec['dec-lat']) or 45 local coslat = math.cos(math.rad(lat)) -- don't overcompensate near poles if coslat < 1./8. then coslat = 1./8. end zoom = math.floor(zoom + math.log(coslat)/log2) zoom = zoom 18 and 18 or zoom local maplinkArgs = { ['latitude'] = coordinateSpec['dec-lat'], ['longitude'] = coordinateSpec['dec-long'], ['zoom'] = zoom, ['text'] = coordinateSpec['dms-lat'] .. ' ' .. coordinateSpec['dms-long'], }

if coordinateSpec['default'] == 'dec' then local geodeclat, geodeclong = addHemisphereToDec( coordinateSpec['dec-lat'], coordinateSpec['dec-long']) maplinkArgs['text'] = geodeclat .. ' ' .. geodeclong end

-- if possible, retrieve title from qid ? local coordinateTitle = args['name'] or labelForQID(args['qid']) or mw.title.getCurrentTitle.text local maplinkMarkerSymbol = geohackTypeToMarkerSymbol(type, population);

local maplinkContent = {		"type": "Feature",		"geometry": {			"type": "Point",			"coordinates": [				 .. jsonSafeNumber( coordinateSpec['dec-long'] ) .. ,				 .. jsonSafeNumber( coordinateSpec['dec-lat'] ) .. ]		},		"properties": {			"title": " .. mw.text.encode( coordinateTitle ) .. ",			"marker-symbol": " .. maplinkMarkerSymbol .. ",			"marker-color": "; -- Add popup with feature title and primary image ? local entityId = mw.wikibase and args.qid; if entityId then maplinkContent = maplinkContent .. , {			"type": "ExternalData",			"service": "geoline",			"ids": " .. entityId .. ",			"properties": {				"stroke": " .. entityId .. ",			"properties": {				"fill": " -- use autozoom if we only had a qid if not args['qid_is_guessed'] then maplinkArgs['zoom'] = nil maplinkArgs['latitude'] = nil maplinkArgs['longitude'] = nil end end

local result = mw.getCurrentFrame:extensionTag{ name = 'maplink', content = '[' .. maplinkContent .. ']',   	args = maplinkArgs }	-- append microformat local microformat = ' ' .. ' ' .. coordinateSpec["dec-lat"] .. ' '		.. ' ' .. coordinateSpec["dec-long"] .. ' '		.. ' '	-- append hidden geolink for backwardscompatibility with scraping services local uriComponents = coordinateSpec["param"] if args["name"] then uriComponents = uriComponents .. "&title=" .. mw.uri.encode(coordinateSpec["name"]) end local geohacklink = ' ['.. coord_link .. uriComponents .. ' (external maps)] ' -- What to do to help non-JS clients ? return result .. microformat .. geohacklink; end

--[[ specPrinter

Output formatter. Takes the structure generated by either parseDec or parseDMS and formats it for inclusion on Wikipedia. ]] local function specPrinter(args, originalArgs, coordinateSpec) local params = splitParam( coordinateSpec.param ) local globe = string.lower( args.globe or params.globe or '' ) local result = mw.html.create( 'span') result:attr('class', 'plainlinks nourlexpansion') result:attr('data-coord-values', string.gsub( mTemplateInvocation.invocation('coord', originalArgs), "", "%1"))

if args['renderer'] == 'kartographer' or (		not args['renderer'] and (globe == '' or globe == 'earth')) then result = result:node( kartographerRenderer(args, coordinateSpec) ) else result = result:node( coordLinkRenderer(args, coordinateSpec) ) end return tostring(result) 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 .."°"

return d .. string.format( "%02d′", 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 .."°"

return d .. string.format( "%02d′", m ) .. string.format( "%02d″", 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, firstPostfix, secondPostfix, precision) local coord = tonumber(coordinate) local postfix if coord >= 0 then postfix = firstPostfix else postfix = secondPostfix end

precision = precision:lower; if precision == "dms" then return convert_dec2dms_dms( math.abs( coord ) ) .. postfix; elseif precision == "dm" then return convert_dec2dms_dm( math.abs( coord ) ) .. postfix; elseif precision == "d" then return convert_dec2dms_d( math.abs( coord ) ) .. postfix; 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 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, "latitude degrees < 0 with hemisphere flag"}) end if long_d < 0 then table.insert(errors, {source, "longitude degrees < 0 with hemisphere flag"}) 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, "longitude degrees > 180 with hemisphere flag"}) end ]]	end

if lat_d > 90 then table.insert(errors, {source, "latitude degrees > 90"}) end if lat_d < -90 then table.insert(errors, {source, "latitude degrees < -90"}) end if lat_m >= 60 then table.insert(errors, {source, "latitude minutes >= 60"}) end if lat_m < 0 then table.insert(errors, {source, "latitude minutes < 0"}) end if lat_s >= 60 then table.insert(errors, {source, "latitude seconds >= 60"}) end if lat_s < 0 then table.insert(errors, {source, "latitude seconds < 0"}) end if long_d >= 360 then table.insert(errors, {source, "longitude degrees >= 360"}) end if long_d <= -360 then table.insert(errors, {source, "longitude degrees <= -360"}) end if long_m >= 60 then table.insert(errors, {source, "longitude minutes >= 60"}) end if long_m < 0 then table.insert(errors, {source, "longitude minutes < 0"}) end if long_s >= 60 then table.insert(errors, {source, "longitude seconds >= 60"}) end if long_s < 0 then table.insert(errors, {source, "longitude seconds < 0"}) 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, elseif not tonumber(long) then return nil, 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, "N", "S", mode)  -- coordinateSpec["dms-long"] = convert_dec2dms( long, "E", "W", mode) --

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 a 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, elseif not tonumber(long_d) then return nil, 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_d.."°"..optionalArg(lat_m,"′") .. optionalArg(lat_s,"″") .. lat_f coordinateSpec["dms-long"] = long_d.."°"..optionalArg(long_m,"′") .. optionalArg(long_s,"″") .. long_f coordinateSpec["dec-lat"] = convert_dms2dec(lat_f, lat_d, lat_m, lat_s) -- coordinateSpec["dec-long"] = convert_dms2dec(long_f, long_d, long_m, long_s) --

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, originalArgs) 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 elseif not tonumber(args[1]) then -- bad lat logic return errorPrinter 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', 'Extra unexpected parameters'}) 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', 'Extra unexpected parameters'}) 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', 'Extra unexpected parameters'}) end if not result then return errorPrinter(errors) end result.param = getParam(args, 5) else -- Error return errorPrinter .. ''	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', 'Parameter: "' .. v .. '=" should be "' .. v .. ':"' }) end end

local ret = specPrinter(args, originalArgs, result) if #errors > 0 then ret = ret .. ' ' .. errorPrinter(errors) .. ''	end return ret, backward end

-- Generate Wikidata tracking categories. local function makeWikidataCategories(qid) local ret local qid = qid or mw.wikibase.getEntityIdForCurrentPage if mw.wikibase and current_page.namespace == 0 then if qid and mw.wikibase.entityExists(qid) and mw.wikibase.getBestStatements(qid, "P625") and mw.wikibase.getBestStatements(qid, "P625")[1] then local snaktype = mw.wikibase.getBestStatements(qid, "P625")[1].mainsnak.snaktype if snaktype == 'value' then -- coordinates exist both here and on Wikidata, and can be compared. ret = 'Coordinates on Wikidata' elseif snaktype == 'somevalue' then ret = 'Coordinates on Wikidata set to unknown value' elseif snaktype == 'novalue' then ret = 'Coordinates on Wikidata set to no value' end else -- We have to either import the coordinates to Wikidata or remove them here. ret = 'Coordinates not on Wikidata' end end if ret then return string.format('', ret) else return '' end end

--[[ link

Simple function to export the coordinates link for other uses.

Usage:

]] function coordinates.link(frame) return coord_link; end

--[[ dec2dms

Wrapper to allow templates to call dec2dms directly.

Usage:

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:

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 °N, °W

Usage: ...

Refer to °N, °W documentation page for many additional parameters and configuration options.

Note: This function provides the visual display elements of °N, °W. In order to load coordinates into the database, the parser function must also be called, this is done automatically in the Lua version of °N, °W. ]] coordinates.coord = makeInvokeFunc('_coord') function coordinates._coord(args) local originalArgs = mTableTools.shallowClone( 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 -- lookup qid item when not provided -- use name as backup option when non-current page if mw.wikibase and not args['qid'] then if isInTitle(Display) then args['qid'] = mw.wikibase.getEntityIdForCurrentPage elseif not isInTitle(Display) and args['name'] then args['qid'] = mw.wikibase.getEntityIdForTitle( args['name'] ) end args['qid_is_guessed'] = true end

-- fill in coordinates using qid when not present if not tonumber(args[1]) and not args[2] and mw.wikibase and args.qid then -- If no unnamed args, then try to backfill with qid 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 -- rest of the code expects strings args[1] = tostring(args[1]) args[2] = tostring(args[2]) end end

local function coord_wrapper(in_args) -- Calls the parser function. return mw.getCurrentFrame:callParserFunction('#coordinates', in_args) or '' end

-- check input and generate the coordinate content local contents, backward = formatTest(args, originalArgs) local text = '' -- wrap contents as needed for display 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 -- Unless nosave, mark in Extension:GeoData with 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 -- doc, testcases and talkpages should not be 'primary' 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 -- load templatestyles text = mw.getCurrentFrame:extensionTag{ name = 'templatestyles', args = { src = templatestyles} } .. text return text end

--[[ coord2text

Extracts a single value from a transclusion of °N, °W. IF THE GEOHACK LINK SYNTAX CHANGES THIS FUNCTION MUST BE MODIFIED.

Usage:

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 lat, long = mw.ustring.match(frame.args[1],' ([^<]+) ([^<]+) ') if lat then return tonumber(frame.args[2] == 'long' and long or lat) end local result, negative = mw.text.split((mw.ustring.match(frame.args[1],'[%.%d]+°[NS] [%.%d]+°[EW]') or ''), ' ') 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 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 °N, °W (if that text isn't already in the transclusion). Outputs the modified transclusion of °N, °W. IF THE GEOHACK LINK SYNTAX CHANGES THIS FUNCTION MUST BE MODIFIED.

Usage:

Do not make Geohack unhappy by inserting something which isn't mentioned in the °N, °W 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], ' ') then local namestr = frame.args.name frame.args[1] = mw.ustring.gsub(frame.args[1],				'(]*>[^<>]* ]*>[^<>]*]*>[^<>]* )',				'%1 %2 &#xfeff; ( ' .. namestr .. ' ) %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