local data = mw.loadData('Module:IPA symbol/data').data local p = {}  local gsub = mw.ustring.gsub local len = mw.ustring.len local sub = mw.ustring.sub  local function reverseLook(t, s)  local ret  for i = 1, len(s) - 1 do  -- Look for 2-char matches first  ret = t[sub(s, i, i + 1)] or t[sub(s, i, i)]  if ret then  return ret  end  end  ret = t[sub(s, -1)] -- Last character  if ret then  return ret  end end  local function returnData(s, dataType)  for _, v in ipairs(data.univPatterns) do  s = gsub(s, v.pat, v.rep)  end  local key = s  for _, v in ipairs(data.keyPatterns) do  key = gsub(key, v.pat, v.rep)  end  local ret = data.sounds[key] or data.diacritics[key]  or reverseLook(data.diacritics, s)  if ret and dataType then  if ret[dataType] then  ret = ret[dataType]  else  error(string.format('Invalid data type "%s"', dataType))  end  end  return ret end  local function returnErrorCat()  return require('Module:Category handler').main{  '[[Category:International Phonetic Alphabet pages needing attention]]',  other = ''  } end  local function returnError(s)  return string.format(  '<span class="error">Error using {{[[Template:IPA symbol|IPA symbol]]}}: "%s" not found in list</span>%s',  s, returnErrorCat()) end  function p._main(s, errorText, output)  return returnData(s, output or 'article') or errorText or returnError(s) end  function p.main(frame)  local args = {}  for k, v in pairs(frame.args) do  args[k] = v ~= '' and v  end  if not args.symbol then  return '' -- Exit early  end  if args.errortext == 'blank' then  args.errortext = ''  end  return p._main(args.symbol, args.errortext, args.output) end  function p._link(s, displayText, prefix, suffix, audio, addSpan, errorText)  local t = returnData(s)  if t then  s = string.format('%s[[:%s|%s]]%s',  prefix or '', t.article, displayText or s, suffix or '')  if addSpan ~= 'no' then  local span = mw.html.create('span'):addClass('IPA')  if prefix or suffix then  span:addClass('nowrap'):attr('title',  'Representation in the International Phonetic Alphabet (IPA)')  end  s = tostring(span:wikitext(s))  end  if audio then  audio = require('Module:Yesno')(audio, audio)  audio = audio == true and t.audio or audio  if audio ~= '' then  audio = mw.getCurrentFrame():expandTemplate{  title = 'Template:Audio',  args = { audio, 'listen', help = 'no' }  }  audio = ' <span class="nowrap" style="font-size:85%">(' .. audio  .. ')</span>'  end  else  audio = ''  end  return s .. audio  else  return errorText or returnError(s)  end end  function p.link(frame)  local args = {}  for k, v in pairs(frame.args) do  args[k] = v ~= '' and v  end  if not args.symbol then  return '' -- Exit early  end  if args.errortext == 'blank' then  args.errortext = ''  end  return p._link(args.symbol, args.text, args.prefix, args.suffix, args.audio,  args.span, args.errortext) end  return p