Module:Person weight

-- This module implements Template:Infobox person/weight

local p = {}

local function clean_weight(s) s = mw.ustring.gsub(s, 'kilogram', 'kg') s = mw.ustring.gsub(s, 'stone', 'st') s = mw.ustring.gsub(s, 'pound', 'lb') s = mw.ustring.gsub(s, 'kgs', 'kg') s = mw.ustring.gsub(s, 'lbs', 'lb') s = mw.ustring.gsub(s, 'sts', 'st')

return s end

local function isnumber(s) if s then s = mw.ustring.gsub(s, '%+%s*%d+%s*/%s*%d+%s*$', '') s = mw.ustring.gsub(s, '%s*[–%-]%s*', '') return tonumber(s) end return nil end

local function get_convert_weight_args(s, kg_stlb, lb_stlb) local prefer_m = (prefer or ) == 'm'	local force_m = (enforce or ) == 'm'	local prefer_cm = (prefer or '') == 'cm' local force_cm = (enforce or '') == 'cm' unconverted = clean_weight(s or '') -- basic unit cleaning s = mw.ustring.gsub(unconverted, '&[Nn][Bb][Ss][Pp];', ' ') local kg = mw.ustring.find(s, 'kg') local st = mw.ustring.find(s, 'st') local lb = mw.ustring.find(s, 'lb') if kg == nil and st == nil and lb == nil then return '', unconverted end if kg ~= nil and st == nil and lb == nil then local n = mw.ustring.sub(s, 1, kg - 1) if isnumber(n) then return {n,'kg',kg_stlb and 'lb stlb' or 'lb',0,['abbr']='on'}, mw.ustring.sub(s, kg+2) end return '', unconverted end if lb ~= nil and kg == nil and st == nil then local n = mw.ustring.sub(s, 1, lb - 1) if isnumber(n) then return {n,'lb',lb_stlb and 'kg stlb' or 'kg',0,['abbr']='on'}, mw.ustring.sub(s, lb+2) end return '', unconverted end if st ~= nil and kg == nil and lb == nil then local n = mw.ustring.sub(s, 1, st - 1) if isnumber(n) then return {n,'st','lb kg',0,['abbr']='on'}, mw.ustring.sub(s, st+2) end return '', unconverted end

if lb ~= nil and st ~=nil and kg == nil then local n1 = mw.ustring.sub(s, 1, st - 1) local n2 = mw.ustring.sub(s, st+2, lb - 1) if isnumber(n1) and isnumber(n2) then return {n1,'st',n2,'lb', 'lb kg',0,['abbr']='on'}, mw.ustring.sub(s, lb+2) end return '', unconverted end return '', unconverted end

function convert_weight(frame, args) local targs, str = get_convert_weight_args(args[1], (args['kg-stlb'] or ) ~= , (args['lb-stlb'] or ) ~= )

if type(targs) == 'table' then return frame:expandTemplate{ title = 'convert', args = targs} .. str else return str end end

function p.weight(frame) return convert_weight(frame, frame.args[1] and frame.args or frame:getParent.args) end

return p