- local q = utf.find(xname, ";", p+1) or utf.len(xname)+1
- if utf.sub(xname, p, p+3)=='cid=' and q>p+4 then
- s = utf.sub(xname, p+4, q-1)
+ local q = xname:find(";", p+1) or xname:len()+1
+ if xname:sub(p, p+3)=='cid=' and q>p+4 then
+ s = xname:sub(p+4, q-1)