Module:Size
From Wicri pool V1.31 Démo.Istex
Revision as of 10:32, 2 November 2018 by Jacques Ducloy (talk | contribs)
Documentation for this module may be created at Module:Size/doc
--[[
__ __ _ _ ____ _
| \/ | ___ __| |_ _| | ___ _/ ___|(_)_______
| |\/| |/ _ \ / _` | | | | |/ _ (_)___ \| |_ / _ \
| | | | (_) | (_| | |_| | | __/_ ___) | |/ / __/
|_| |_|\___/ \__,_|\__,_|_|\___(_)____/|_/___\___|
Authors and maintainers:
* User:Zolo - original draft
* User:Jarekt - original version
]]
local formatnum = require "Module:Formatnum".formatNum
local wdLabel = require "Module:Wikidata label"._getLabel
-- ==================================================
-- === global parameters ===========================
-- ==================================================
-- arrays for unit conversion 3 4 5 6 7 8 9 10 11 12 13 14 15
local unitMult = {1e-9, 1e-6, 1e-3, 1e-2, 1 , 1e3 , 0.0254, 0.3048, 0.9144, 1609.344, 1, 1e3, 1e6, 28.3495, 453.592, 1} -- conversion to meters
local unitList = {'nm', 'um', 'mm', "cm", "m" , "km", "in" , "ft" , "yd" , "mi", "g", "kg", "t", "oz", "lb", "ct" } -- units handled by this module
local unitType = {'m' , 'm' , 'm' , 'm' , 'm' , 'm' , 'i' , 'i' , 'i' , 'i' , 'm', 'm' , 'm', 'i' , 'i', '' } -- m for metric and i for imperial
local unitItem = {nm='Q178674', um='Q175821', mm='Q174789', cm='Q174728', m='Q11573', km='Q828224', -- used for unit abbreviation translation
['in']='Q218593', ft='Q3710', yd='Q482798', mi='Q253276', kg='Q11570', g='Q41803', t='Q191118', oz='Q48013', lb="Q100995", ct="Q261247" }
-- properties used for harvesting the wikidata and item IDs are used for translating dimension's name
local dimProp = { length='P2043' , height='P2048' , width='P2049' , depthH='P5524', depthV='P4511' , thickness='P2610' , diameter='P2386' , radius='P2120' , perimeter='P2547' , weight='P2067'}
local dimName = { length='Q36253', height='Q208826', width='Q35059', depthH='Q3250078', depthV='Q930412', thickness='Q3589038', diameter='Q37221', radius='Q173817', perimeter='Q28474', weight='Q11423'}
local aliases = { -- aliases for units used to unify
Q178674="nm", nm="nm", nanometer="nm", nanometers= "nm", nanometre="nm", nanometres="nm",
Q175821="um", um="um", ["µm"]="um", micrometer="um", micrometers="um", micrometre="um", micrometres="um",
Q200323="dm", dm="dm", decimeter="dm", decimeters="dm", decimetre="dm", decimetres="dm",
Q174789="mm", mm="mm", millimeter="mm", millimeters="mm", millimetre="mm", millimetres="mm",
Q174728="cm", cm="cm", centimeter="cm", centimeters="cm", centimetre="cm", centimetres="cm",
Q11573="m", m="m", meter="m", meters="m", metre="m", metres="m",
Q828224="km", km="km", kilometer="km", kilometers="km", kilometre="km", kilometres="km",
Q218593="in", ["in"]="in", inch="in", inches="in",
Q3710="ft", ft="ft", foot="ft", feet="ft",
Q482798="yd", yd="yd", yard="yd", yards="yd",
Q253276="mi", mi="mi", mile="mi", miles="mi",
Q93318="nmi", nmi="nmi", ["nautic mile"]="nmi", ["nautic miles"]="nmi",
Q11570="kg", kilogram="kg", kilograms="kg", kg="kg",
Q41803="g", gram="g", grams="g", g="g",
Q191118="t", tonne="t", tonnes="t", ton="t", tons="t", ["metric ton"]="t", t="t",
Q48013="oz", ounce="oz", oz="oz",
Q100995="lb", pound="lb", pounds="lb", lb="lb",
Q261247="ct", carat="ct", ct="ct"
}
-- ==================================================
-- === Internal functions ===========================
-- ==================================================
local function langSwitch(list,lang)
local langList = mw.language.getFallbacksFor(lang)
table.insert(langList,1,lang)
for i,language in ipairs(langList) do
if list[language] then
return list[language]
end
end
return nil
end
local function getProperty(itemID, prop, lang)
local n, title = 0, {}
entity = mw.wikibase.getEntity(itemID)
for _, statement in pairs( entity:getBestStatements(prop)) do
if (statement.mainsnak.snaktype == "value") then
local val = statement.mainsnak.datavalue.value
title[val.language] = val.text -- look for multiple values each with a language code
n = n+1;
end
end
if n>0 then
return langSwitch(title, lang)
end
--return ''
end
local function normalize_input_args(input_args, output_args)
for name, value in pairs( input_args ) do
if value ~= '' then -- nuke empty strings
if type(name)=='string' then
name = string.lower(name)
end
output_args[name] = string.gsub(value, "^%s*(.-)%s*$", "%1") -- trim whitespaces from the beggining and the end of the string
end
end
return output_args
end
local function findInArray(str, list)
for k, v in ipairs(list) do
if v==str then -- match units with the list
return k;
end
end
return nil
end
local function formatNum( value, lang, precision )
assert(value, "Input value is nil")
assert(precision, "Input precision is nil")
local str = formatnum( value, lang, precision )
str = mw.ustring.gsub(str, "%.0+$", "") -- remove trailing zeros
return str
end
--[[
INPUTS:
* v - size in meters
* unitMult - array used to convert meters to other units
* iMin, iMax - min and max index of unitMult array to use
]]
local function niceNumber(v, iMin, iMax)
s = 10; -- scaling parameter. Means that "nice" numbers are in units that give the smallest number bigger than s
if v<s*unitMult[iMin] then
return iMin -- will show as fractions of the smallest unit
end
for k = iMin,iMax-1 do
if v>=s*unitMult[k] and v<s*unitMult[k+1] then
return k
end
end
return iMax -- will use the largest unit
end
local function pickUnit(val, unit, lang)
local k1, k2, unit1, unit2
unit1 = aliases[unit] -- convert unit item ID to standard units
assert(unit1, "Unit name is not recognized: " .. unit)
k1 = findInArray(unit1, unitList)
unit1 = getProperty(unitItem[unit1], 'P5061', lang) -- gets the abbreviated form of the name of the unit
local valInM = val*unitMult[k1] -- find value in metres
if (k1<=6) then -- input units are metric length
k2 = niceNumber(valInM, 7, 10) -- find best imperial units
elseif (k1<=10) then -- input units are imperial length
k2 = niceNumber(valInM, 1, 6) -- find best metric units
elseif (k1<=13) then -- input units are metric weight
k2 = niceNumber(valInM, 14, 15)-- find best imperial units
else -- input units are imperial weight
k2 = niceNumber(valInM, 11, 13)-- find best metric units
end
factor = unitMult[k1]/unitMult[k2]
unit2 = getProperty(unitItem[unitList[k2]], 'P5061', lang) -- gets the abbreviated form of the name of the unit
return unit1 or unit, unit2 or unitItem[unitList[k2]], factor, unitType[k1]
end
local function unit_conversion(val, unit, prec, lang, wordsep)
local factor, unit1, unit2, numStr1, numStr2, system
unit1, unit2, factor, system = pickUnit(val, unit, lang) -- based on val magnitude and unit, translate unit and provide coversion factor to convert to other type of units
numStr1 = formatNum( val, lang, prec) .. wordsep .. unit1
if (lang~='en' and lang~='en-US' and system=='m') or (system=='') then -- if input is in metric units and output language is not English then show only metric output
return numStr1 -- just show metric values
end
-- final string in imperial and metric units
numStr2 = formatNum( val*factor, lang, prec)
return mw.ustring.format("%s%s(%s%s%s)", numStr1, wordsep, numStr2, wordsep, unit2)
end
local function disambiguate_dimensions(args)
-- compare painting dimensions to image dimensions
if args[2] and args[3] and not args[4] then
local title = mw.title.getCurrentTitle()
if title.namespace==6 then -- this is a file
local width, height, ratio, R, dr1, dr2, dr
width = title.file.width
height = title.file.height
ratio = 1.0*height/width -- file size ratio
R = 1.0*args[2]/args[3] -- painting size ratio
dr1 = math.abs( R-ratio)/ratio -- compare ratios
dr2 = math.abs(1/R-ratio)/ratio
dr = math.min(dr1, dr2)
args.debug = string.format('width=%f; height=%f; ratio=%f; R=%f; dr=%f', width, height, ratio, R, dr)
if dr<0.1 and (ratio>1.15 or ratio<0.85) then -- ratios are within 10% from each other and image is not square
if dr1<dr2 then
args.height, args.width = args[2], args[3]
else
args.height, args.width = args[3], args[2]
end
args[2], args[3] = nil, nil
end
end
end
return args
end
-- ==================================================
-- === External functions ===========================
-- ==================================================
local p = {}
function p._size_old(args, unit, prec, lang)
--This function mimics the functionality of the original {{Size|unit|dim1|dim2|dim3}} template
if not prec then
prec = 1;
if unit == 'mm' then prec=2; end
end
-- process values
local val, mean = {}, 0
for i = 2,4 do
v = args[i]
if v then
v = string.gsub(v, ',', '.')
v = tonumber(v)
if type(v)=='number' and v>0 then
table.insert(val, v)
mean = mean + v
end
end
end
mean = mean / #val -- find mean of 3 dimensions
assert(#val>0, "No numeric dimensions found.")
--if n==0 then return '' end
-- pick metric and imperial units
local factor, unit1, unit2, system
unit1, unit2, factor, system = pickUnit(mean, unit, lang)
-- convert numbers to localized strings
local numStr1, numStr2 = {}, {}
for _, v in ipairs(val) do
table.insert(numStr1, formatNum( v , lang, prec))
table.insert(numStr2, formatNum( v*factor, lang, prec))
end
-- final string in the same units as input
local wordsep = mw.message.new( "Word-separator" ):inLanguage(lang):plain()
local x = wordsep .. '×'.. wordsep
numStr1 = table.concat( numStr1, x) .. wordsep .. unit1
if (lang~='en' and lang~='en-US' and system=='m') or (system=='') then -- if input is in metric units and output language is not English then show only metric output
return numStr1 -- just show metric values
end
-- final string in imperial and metric units
numStr2 = table.concat( numStr2, x) .. wordsep .. unit2
return mw.ustring.format("%s%s(%s)", numStr1, wordsep, numStr2)
end
-- ==================================================
function p._size(args, unit, prec, lang)
--This function mimics the functionality of the latter {{Size|unit|width=...|height=...|...}} template
unit1 = aliases[unit] -- disambiguate units
assert(unit1 or args.wikidata or args.entity, "Unit name is not recognized")
if not prec then
prec = 1;
if unit == 'mm' then prec=2; end
end
args.depthH = args.depth -- assume that "depth" defined by {{Size}} meant "horizontal dimension away from the observer"
-- harvest wikidata
-- each property stores a single dimension. Notice that P4511 is for vertical depth only, while Size template parameter "depth" was mostly used for horizontal depth
local entity, units = nil, {}
if args.wikidata then
entity = mw.wikibase.getEntity(args.wikidata)
elseif args.entity then
entity = args.entity
end
if entity then
for field, prop in pairs(dimProp) do
if entity.claims and entity.claims[prop] then -- if we have wikidata item and item has the property
for _, statement in pairs( entity:getBestStatements( prop )) do
if (statement.mainsnak.snaktype == "value") then
local v = statement.mainsnak.datavalue.value
args [field] = v.amount
units[field] = string.gsub(v.unit, "http:%/%/www%.wikidata%.org%/entity%/", "") -- strip URL and keep the item ID
end
end
end
end
end
-- create non-visible encoding with untranslated dimensions
local mata_str = ''
local fields = { 'length', 'height', 'width', 'depthH', 'depthV', 'thickness', 'diameter'}
local meta = {}
for _, field in ipairs( fields ) do
if args[field] then
local uStr = units[field] or unitItem[unit] -- get item ID of the unit
table.insert(meta, dimProp[field] .. ',' .. args[field] .. "U" .. string.sub(uStr, 2, -1) )-- replace Q with U on the beginning of the string
end
end
if #meta>0 then
mata_str = ' <div style="display: none;">dimensions QS:' .. table.concat(meta, ";") .. '</div>'
end
-- create the final string
local colon = mw.message.new( "Colon-separator" ):inLanguage(lang):plain()
local semicolon = mw.message.new( "Semicolon-separator" ):inLanguage(lang):plain()
local wordsep = mw.message.new( "Word-separator" ):inLanguage(lang):plain()
local dimOrder = { 'length', 'height', 'width', 'depthH', 'depthV', 'thickness', 'diameter', 'radius', 'perimeter', 'weight'} -- array with order of fields to display
local results = {}
for _, field in ipairs(dimOrder) do -- values with named dimensions like "depth: 2 cm"
local val = args[field]
if val then
val = string.gsub(val, ',', '.')
val = tonumber(val)
if type(val)=='number' then
local dimStr = '???' -- wdLabel(dimName[field], lang, '-', "ucfirst")
local valStr = unit_conversion(val, units[field] or unit, prec, lang, wordsep)
table.insert(results, dimStr .. colon .. valStr)
end
end
end
return table.concat(results, semicolon) .. mata_str
end
-- ==================================================
function p.size(frame)
local args = {}
args = normalize_input_args(frame:getParent().args, args)
args = normalize_input_args(frame.args, args)
if not args.lang or not mw.language.isSupportedLanguage(args.lang) then
args.lang = frame:callParserFunction( "int", "lang" ) -- get user's chosen language
end
local unit = args[1] or args.unit or args.units
unit = aliases[unit]
if not unit and not args.wikidata then
return ''
end
-- see if we can deduce which dimension is which
local cat = ''
if args[2] and args[3] then
args = disambiguate_dimensions(args)
if not args[2] then
cat = '\n[[Category:Size templates with unnamed dimensions]]'
end
--cat = cat .. args.debug
end
-- call either a function for named and for unnamed dimensions
if args[2] or args[3] or args[4] then
return p._size_old(args, unit, args.prec, args.lang) .. cat -- old style of display for unnamed dimensions
else
return p._size(args, unit, args.prec, args.lang) .. cat -- dimensions are named
end
end
return p
