put _system.getInstalledCharSets()
-- ["big5", "cp1026", "cp866", "ebcdic-cp-us", "gb2312", "ibm437", "ibm737",
"ibm775", "ibm850", "ibm852", "ibm857", "ibm861", "ibm869", "iso-8859-1",
"iso-8859-15", "iso-8859-2", "iso-8859-4", "iso-8859-5", "iso-8859-7",
"iso-8859-9", "johab", "koi8-r", "koi8-u", "ks_c_5601-1987", "macintosh",
"shift_jis", "us-ascii", "utf-16", "utf-16be", "utf-7", "utf-8", "windows-1250",
"windows-1251", "windows-1252", "windows-1253", "windows-1254", "windows-1255",
"windows-1256", "windows-1257", "windows-1258", "windows-874",
"x-ebcdic-greekmodern", "x-mac-ce", "x-mac-cyrillic", "x-mac-greek",
"x-mac-icelandic", "x-mac-turkish"]