count = util.tableCount(v)
elseif count ~= util.tableCount(v) then
return nil
end
end
return count
end  
---
Splits a list into a table sequence. The items in the list may be separated by
commas, or by semicolons (if items may contain commas), or by "###" (if items
may contain semicolons).
@param {string} listString
@returns {table} sequence of list items
---
function util.tableFromList(listString)
if type(listString) ~= "string" or listString == "" then return nil end
local separator = (mw.ustring.find(listString, "###", 0, true ) and "###") or
(mw.ustring.find(listString, ";", 0, true ) and ";") or ","
local pattern = "%s*"..separator.."%s*"
return mw.text.split(listString, pattern)
end  
-- Boolean in outer scope indicating if Kartographer should be able to
-- automatically calculate coordinates (see phab:T227402)
local coordsDerivedFromFeatures = false;  
---
Make methods: These take in a table of arguments, and return either a string
or a table to be used in the eventual output.
---
local make = {}  
---
Makes content to go inside the maplink or mapframe tag.  
@param {table} args
@returns {string} tag content
---
function make.content(args)
if util.getParameterValue(args, 'raw') then
coordsDerivedFromFeatures = true -- Kartographer should be able to automatically calculate coords from raw geoJSON
return util.getParameterValue(args, 'raw')
end  
local content = {}  
local argsExpanded = {}
for k, v in pairs(args) do
local index = string.match( k, '^[^0-9]+([0-9]*)$' )
if index ~= nil then
local indexNumber = ''
if index ~= '' then
indexNumber = tonumber(index)
else
indexNumber = 1
end  
if argsExpanded[indexNumber] == nil then
argsExpanded[indexNumber] = {}
end
argsExpanded[indexNumber][ string.gsub(k, index, '') ] = v
end
end  
for contentIndex, contentArgs in pairs(argsExpanded) do
local argType = util.getParameterValue(contentArgs, "type")
-- Kartographer automatically calculates coords if geolines/shapes are used (T227402)
if not coordsDerivedFromFeatures then
coordsDerivedFromFeatures = ( argType == L10n.str.line or argType == L10n.str.shape ) and true or false
end
if argType == L10n.str.named then
local namedCoords = util.getNamedCoords(util.getParameterValue(contentArgs, "from"))
local typeKey = type(L10n.para.type) == "table" and L10n.para.type[1] or L10n.para.type
local coordKey = type(L10n.para.coord) == "table" and L10n.para.coord[1] or L10n.para.coord
local titleKey = type(L10n.para.title) == "table" and L10n.para.title[1] or L10n.para.title
local descKey = type(L10n.para.description) == "table" and L10n.para.description[1] or L10n.para.description
for _, namedCoord in pairs(namedCoords) do
contentArgs[typeKey] = "point"
contentArgs[coordKey] = namedCoord.coord
contentArgs[titleKey] = namedCoord.name
contentArgs[descKey] = namedCoord.description
content[#content+1] = make.contentJson(contentArgs)
end
else
content[#content + 1] = make.contentJson(contentArgs)
end
end  
--Single item, no array needed
if #content==1 then return content[1] end  
--Multiple items get placed in a FeatureCollection
local contentArray = '[\n' .. table.concat( content, ',\n') .. '\n]'
return contentArray
end  
--[[
Make coordinates from the coord arg, or the id arg, or the current page's
Wikidata item.
@param {table} args
@param {boolean} [plainOutput]
@returns {Mixed} Either:
{number, number} latitude, longitude if plainOutput is true; or
{table} table sequence of longitude, then latitude (gives the required format
for GeoJSON when encoded)
]]--
function make.coords(args, plainOutput)
local coords, lat, long
local = mw.getCurrentFrame
if util.getParameterValue(args, 'coord') then
coords = :preprocess( util.getParameterValue(args, 'coord') )
lat, long = util.parseCoords(coords)
else
lat, long = util.wikidataCoords(util.getParameterValue(args, 'id') or mw.wikibase.getEntityIdForCurrentPage)
end
if plainOutput then
return lat, long
end
return {[0] = long, [1] = lat}
end  
---
Makes a table of coordinates that approximate a circle.
@param {table} args
@returns {table} sequence of {latitude, longitude} table sequences, where
latitude and longitude are both numbers
@throws {L10n.error.noCircleCoords} if centre coordinates are not specified
@throws {L10n.error.noRadius} if radius is not specified
@throws {L10n.error.negativeRadius} if radius is negative or zero
@throws {L10n.error.negativeEdges} if edges is negative or zero
---
function make.circleCoords(args)
local lat, long = make.coords(args, true)
local radius = util.getParameterValue(args, 'radius')
if not radius then
radius = util.getParameterValue(args, 'radiusKm') and tonumber(util.getParameterValue(args, 'radiusKm'))*1000
if not radius then
radius = util.getParameterValue(args, 'radiusMi') and tonumber(util.getParameterValue(args, 'radiusMi'))*1609.344
if not radius then
radius = util.getParameterValue(args, 'radiusFt') and tonumber(util.getParameterValue(args, 'radiusFt'))*0.3048
end
end
end
local edges = util.getParameterValue(args, 'edges') or L10n.defaults.edges
if not lat or not long then
error(L10n.error.noCircleCoords, 0)
elseif not radius then
error(L10n.error.noRadius, 0)
elseif tonumber(radius) <= 0 then
error(L10n.error.negativeRadius, 0)
elseif tonumber(edges) <= 0 then
error(L10n.error.negativeEdges, 0)
end
return util.circleToPolygon(lat, long, radius, tonumber(edges))
end  
---
Makes JSON data for a feature
@param contentArgs args for this feature. Keys must be the non-suffixed version
of the parameter names, i.e. use type, stroke, fill,... rather than type3,
stroke3, fill3,...
@returns {string} JSON encoded data
---
function make.contentJson(contentArgs)
local data = {}  
if util.getParameterValue(contentArgs, 'type') == L10n.str.point or util.getParameterValue(contentArgs, 'type') == L10n.str.circle then
local isCircle = util.getParameterValue(contentArgs, 'type') == L10n.str.circle
data.type = "Feature"
data.geometry = {
type = isCircle and "LineString" or "Point",
coordinates = isCircle and make.circleCoords(contentArgs) or make.coords(contentArgs)
}
data.properties = {
title = util.getParameterValue(contentArgs, 'title') or mw.getCurrentFrame:getParent:getTitle
}
if isCircle then
-- TODO: This is very similar to below, should be extracted into a function
data.properties.stroke = util.getParameterValue(contentArgs, 'strokeColor') or L10n.defaults.strokeColor
data.properties["stroke-width"] = tonumber(util.getParameterValue(contentArgs, 'strokeWidth')) or L10n.defaults.strokeWidth
local strokeOpacity = util.getParameterValue(contentArgs, 'strokeOpacity')
if strokeOpacity then
data.properties['stroke-opacity'] = tonumber(strokeOpacity)
end
local fill = util.getParameterValue(contentArgs, 'fill')
if fill then
data.properties.fill = fill
local fillOpacity = util.getParameterValue(contentArgs, 'fillOpacity')
data.properties['fill-opacity'] = fillOpacity and tonumber(fillOpacity) or 0.6
end
else -- is a point
local markerSymbol = util.getParameterValue(contentArgs, 'marker') or L10n.defaults.marker
-- allow blank to be explicitly specified, for overriding infoboxes or other templates with a default value
if markerSymbol ~= "blank" then
data.properties["marker-symbol"] = markerSymbol
end
data.properties["marker-color"] = util.getParameterValue(contentArgs, 'markerColor') or L10n.defaults.markerColor
data.properties["marker-size"] = util.getParameterValue(contentArgs, 'markerSize') or L10n.defaults.markerSize
end
else
data.type = "ExternalData"  
if util.getParameterValue(contentArgs, 'type') == L10n.str.data or util.getParameterValue(contentArgs, 'from') then
data.service = "page"
elseif util.getParameterValue(contentArgs, 'type') == L10n.str.line then
data.service = "geoline"
elseif util.getParameterValue(contentArgs, 'type') == L10n.str.shape then
data.service = "geoshape"
elseif util.getParameterValue(contentArgs, 'type') == L10n.str.shapeInverse then
data.service = "geomask"
end