-- This module implements Template:Infobox person/height  local p = {}  local function clean(s)  	s = mw.ustring.gsub(s, 'metre', 'm') 	s = mw.ustring.gsub(s, 'মিটার', 'm') 	s = mw.ustring.gsub(s, '([^a])meter', '%1m') -- prevents "parameter" from being changed to "param" 	s = mw.ustring.gsub(s, 'centi', 'c') -- changes "centim" to "cm" 	s = mw.ustring.gsub(s, 'সেন্টি', 'c') -- changes "centim" to "cm" 	s = mw.ustring.gsub(s, 'ms', 'm')  	s = mw.ustring.gsub(s, 'm[%.,]', 'm')  	s = mw.ustring.gsub(s, 'feet', 'ft') 	s = mw.ustring.gsub(s, 'ফুট', 'ft') 	s = mw.ustring.gsub(s, 'foot', 'ft') 	s = mw.ustring.gsub(s, 'ft[%.,]', 'ft')  	s = mw.ustring.gsub(s, 'inches', 'in') 	s = mw.ustring.gsub(s, 'ইঞ্চি', 'in') 	s = mw.ustring.gsub(s, 'inch', 'in') 	s = mw.ustring.gsub(s, 'ins', 'in') 	s = mw.ustring.gsub(s, 'in[%.,]', 'in')  	s = mw.ustring.gsub(s, '%[%[[Mm]%]%]s', 'm') 	s = mw.ustring.gsub(s, '%[%[[Cc]m%]%]s', 'cm') 	s = mw.ustring.gsub(s, '%[%[[Cc]entim|cm%]%]', 'cm') 	s = mw.ustring.gsub(s, '%[%[[Ii]n|in%]%]', 'in')  	return s end  local function isnumber(s) 	if s then 		s = mw.ustring.gsub(s, '%+%s*%d+%s*/%s*%d+%s*$', ) 		return tonumber(s) 	end 	return nil end  local function get_convert_args(s, prefer, enforce) 	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(s or ) -- basic unit cleaning 	 	s = mw.ustring.gsub(unconverted, '&[Nn][Bb][Ss][Pp];', ' ') 	 	local m = mw.ustring.find(s, 'm') 	local c = mw.ustring.find(s, 'cm') 	local f = mw.ustring.find(s, 'ft') 	local i = mw.ustring.find(s, 'in') 	 	if m == nil and f == nil and i == nil then 		return , unconverted 	end 	 	if c ~= nil and f == nil and i == nil then 		local n = mw.ustring.sub(s, 1, c - 1) 		if isnumber(n) then 			return force_m 				and {n/100,'m','ftin',0,['abbr']='off'} 				or {n,'cm','ftin',0,['abbr']='off'}, mw.ustring.sub(s, c+2) 		end 		return , unconverted 	end 	 	if m ~= nil and c == nil and f == nil and i == nil then 		local n = mw.ustring.sub(s, 1, m - 1) 		if isnumber(n) then 			return force_cm  				and {n*100,'cm','ftin',0,['abbr']='off'} 				or {n,'m','ftin',0,['abbr']='off'}, mw.ustring.sub(s, m+1) 		end 		return , unconverted 	end 	 	if f ~= nil and i ~=nil and m == nil then 		local n1 = mw.ustring.sub(s, 1, f - 1) 		local n2 = mw.ustring.sub(s, f+2, i - 1) 		if isnumber(n1) and isnumber(n2) then 			return (force_m or prefer_m) 				and {n1,'ft',n2,'in', 'm',2,['abbr']='off'} 				or {n1,'ft',n2,'in', 'cm',0,['abbr']='off'}, mw.ustring.sub(s, i+2) 		end 		return , unconverted 	end 	 	if f ~= nil and i == nil and m == nil then 		local n = mw.ustring.sub(s, 1, f - 1) 		if isnumber(n) then 			return (force_m or prefer_m) 				and {n,'ft','m',2,['abbr']='off'} 				or {n,'ft','cm',0,['abbr']='off'}, mw.ustring.sub(s, f+2) 		end 		return , unconverted 	end 	 	if i ~= nil and f == nil and m == nil then 		local n = mw.ustring.sub(s, 1, i - 1) 		if isnumber(n) then 			return (force_m or prefer_m) 				and {n,'in','m',2,['abbr']='off'} 				or {n,'in','cm',0,['abbr']='off'}, mw.ustring.sub(s, i+2) 		end 		return , unconverted 	end 	 	return , unconverted end  function convert(frame, args) 	local targs, str = get_convert_args(args[1], args['prefer'] or , args['enforce'] or '')  	if type(targs) == 'table' then 		return frame:expandTemplate{ title = 'রূপান্তর', args = targs} .. str 	else 		return str 	end end  function p.main(frame) 	return convert(frame, frame.args[1] and frame.args or frame:getParent().args) end  return p