-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- --- WARNING! --- -- This file contains a mix of encodings below. -- Many editors will unquestioningly convert these for you. -- Please be careful :( (I recommend Scite) --------------------------------- local gmatch = string.gmatch; local t_concat, t_insert = table.concat, table.insert; local to_byte, to_char = string.byte, string.char; local function _latin1toutf8(str) if not str then return str; end local p = {}; for ch in gmatch(str, ".") do ch = to_byte(ch); if (ch < 0x80) then t_insert(p, to_char(ch)); elseif (ch < 0xC0) then t_insert(p, to_char(0xC2, ch)); else t_insert(p, to_char(0xC3, ch - 64)); end end return t_concat(p); end function latin1toutf8() local function assert_utf8(latin, utf8) assert_equal(_latin1toutf8(latin), utf8, "Incorrect UTF8 from Latin1: "..tostring(latin)); end assert_utf8("", "") assert_utf8("test", "test") assert_utf8(nil, nil) assert_utf8("foobar.r�kat.se", "foobar.råkat.se") end