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Difference between revisions of "Parameters"

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(Fix disparate parameters logic)
(Doc some of the module's inner workings; add sorting to strMap and sort compare's output)
Line 20: Line 20:
 
end
 
end
  
local function strMap(iter, transform)
+
local function strMap(iter, transform, sort)
 
local returnTable = {}
 
local returnTable = {}
 
for _, v in pairs(iter) do
 
for _, v in pairs(iter) do
 
table.insert(returnTable, transform(v))
 
table.insert(returnTable, transform(v))
 +
end
 +
if sort then
 +
table.sort(returnTable)
 
end
 
end
 
return table.concat(returnTable)
 
return table.concat(returnTable)
Line 40: Line 43:
 
local function normaliseParams(parameters)
 
local function normaliseParams(parameters)
 
local paramsNorm = {}
 
local paramsNorm = {}
 +
-- Prepare a key lookup metatable, which will hold the original
 +
-- parameter names for each normalised parameter, e.g.
 +
-- [test] = {TEST, Test}. paramIndex functions like a Python
 +
-- defaultdict, where the default is a table.
 
local paramIndex = setmetatable({}, {__index = function(t, k)
 
local paramIndex = setmetatable({}, {__index = function(t, k)
 
if not rawget(t, k) then
 
if not rawget(t, k) then
Line 54: Line 61:
  
 
paramsNorm = removeDuplicates(paramsNorm)
 
paramsNorm = removeDuplicates(paramsNorm)
 +
-- Overload key lookup in paramsNorm. While [[Module:Set]] will
 +
-- operate on the table (which is to say, the normalised parameters
 +
-- array), key access will be by way of the paramIndex metatable.
 
setmetatable(paramsNorm, {__index = paramIndex})
 
setmetatable(paramsNorm, {__index = paramIndex})
 
return paramsNorm
 
return paramsNorm
Line 71: Line 81:
 
%s]],
 
%s]],
 
strMap(Set.valueIntersection(baseParams, otherParams),
 
strMap(Set.valueIntersection(baseParams, otherParams),
function(v) return string.format('* %s\n', v) end),
+
function(v) return string.format('* %s\n', v) end, true),
 
strMap(Set.valueIntersection(baseNormParams, otherNormParams),
 
strMap(Set.valueIntersection(baseNormParams, otherNormParams),
 
function(v) return string.format('* %s < %s [%s]\n',
 
function(v) return string.format('* %s < %s [%s]\n',
Line 77: Line 87:
 
table.concat(otherNormParams[v], '; '),
 
table.concat(otherNormParams[v], '; '),
 
v)
 
v)
end),
+
end, true),
 
strMap(Set.valueComplement(otherNormParams, baseNormParams),
 
strMap(Set.valueComplement(otherNormParams, baseNormParams),
 
function(v) return strMap(baseNormParams[v],
 
function(v) return strMap(baseNormParams[v],
function(s) return string.format('* %s\n', s) end)
+
function(s) return string.format('* %s\n', s) end, true)
end))
+
end, true))
 
end
 
end
  

Revision as of 06:33, 8 June 2015


-- This module implements [[Template:Parameters]].
-- [SublimeLinter luacheck-globals:mw]

local p = {}
local removeDuplicates = require('Module:TableTools').removeDuplicates

local function makeInvokeFunction(funcName)
	return function(frame)
		local getArgs = require('Module:Arguments').getArgs
		return p[funcName](getArgs(frame))
	end
end

local function extractParams(source)
	local parameters = {}
	for parameter in string.gmatch(source, '{{{(.-)%f[}|<>]') do
		table.insert(parameters, parameter)
	end
	return removeDuplicates(parameters)
end

local function strMap(iter, transform, sort)
	local returnTable = {}
	for _, v in pairs(iter) do
		table.insert(returnTable, transform(v))
	end
	if sort then
		table.sort(returnTable)
	end
	return table.concat(returnTable)
end

function p._code(args)
	local title = args._base or mw.title.getCurrentTitle().baseText
	return string.format([[{{%s
%s}}]], title, strMap(extractParams(args.base),
		function(s) return string.format('| %s = \n', s) end))
end

function p._compare(args)
	local Set = require('Module:Set')

	local function normaliseParams(parameters)
		local paramsNorm = {}
		-- Prepare a key lookup metatable, which will hold the original
		-- parameter names for each normalised parameter, e.g.
		-- [test] = {TEST, Test}. paramIndex functions like a Python
		-- defaultdict, where the default is a table.
		local paramIndex = setmetatable({}, {__index = function(t, k)
			if not rawget(t, k) then
				rawset(t, k, {})
			end
			return rawget(t, k)
		end})
		for _, parameter in pairs(parameters) do
			table.insert(paramsNorm,
				string.lower(string.gsub(parameter, '%A', '')))
			table.insert(paramIndex[
				string.lower(string.gsub(parameter, '%A', ''))], parameter)
		end

		paramsNorm = removeDuplicates(paramsNorm)
		-- Overload key lookup in paramsNorm. While [[Module:Set]] will
		-- operate on the table (which is to say, the normalised parameters
		-- array), key access will be by way of the paramIndex metatable.
		setmetatable(paramsNorm, {__index = paramIndex})
		return paramsNorm
	end

	local baseParams = extractParams(args.base)
	local otherParams = extractParams(args.other)
	local baseNormParams = normaliseParams(Set.valueComplement(
			otherParams, baseParams))
	local otherNormParams = normaliseParams(otherParams)

	return string.format([[Identical:
%s
Similar:
%s
Disparate:
%s]],
	strMap(Set.valueIntersection(baseParams, otherParams),
		function(v) return string.format('* %s\n', v) end, true),
	strMap(Set.valueIntersection(baseNormParams, otherNormParams),
		function(v) return string.format('* %s < %s [%s]\n',
			table.concat(baseNormParams[v], '; '),
			table.concat(otherNormParams[v], '; '),
			v)
		end, true),
	strMap(Set.valueComplement(otherNormParams, baseNormParams),
		function(v) return strMap(baseNormParams[v],
			function(s) return string.format('* %s\n', s) end, true)
		end, true))
end

function p._demo(args)
	local title = args._base and ('|_template=' .. args._base) or ''
	return string.format('{{Parameter names example%s|%s}}', title,
		table.concat(extractParams(args.base), '|'))
end

function p._list(args)
	return strMap(extractParams(args.base),
		function(s) return string.format('* %s\n', s) end)
end

p.code = makeInvokeFunction('_code')
p.compare = makeInvokeFunction('_compare')
p.demo = makeInvokeFunction('_demo')
p.list = makeInvokeFunction('_list')

return p