alert(line) alerts 'ac' and typeof(line) is 'string', but charAt is not a function
- by Delirium tremens
alert(line) alerts 'ac'
typeof(line) is 'string'
When I run line.charAt(0), charAt is not a function.
When line is 'http://www.google.com/', it works,
I think it's the UTF-8 encoding of the file that I opened...
How to make charAt work with UTF-8?
UPDATED:
http://mxr.mozilla.org/mozilla-central/source/netwerk/dns/src/effective_tld_names.dat?raw=1 is in my extension's chrome folder as effective_tld_names.dat
To run the code:
authority = 'orkut.com.br';
lines = sc_geteffectivetldnames();
lines = sc_preparetouse(lines);
domainname = sc_extractdomainname(authority, lines);
The code:
function sc_geteffectivetldnames () {
var MY_ID = "[email protected]";
var em = Components.classes["@mozilla.org/extensions/manager;1"].
getService(Components.interfaces.nsIExtensionManager);
var file = em.getInstallLocation(MY_ID).getItemFile(MY_ID, "chrome/effective_tld_names.dat");
var istream = Components.classes["@mozilla.org/network/file-input-stream;1"].
createInstance(Components.interfaces.nsIFileInputStream);
istream.init(file, 0x01, 0444, 0);
istream.QueryInterface(Components.interfaces.nsILineInputStream);
var line = {}, lines = [], hasmore;
do {
hasmore = istream.readLine(line);
lines.push(line.value);
} while(hasmore);
istream.close();
return lines;
}
function sc_preparetouse(lines) {
lines = sc_notcomment(lines);
lines = sc_notempty(lines);
return lines;
}
function sc_notcomment(lines) {
var line;
var commentre;
var matchedcomment;
var replacedlines;
replacedlines = new Array();
var i = 0;
while (i < lines.length) {
line = lines[i];
commentre = new RegExp("^//", 'i');
matchedcomment = line.match(commentre);
if(matchedcomment) {
lines.splice(i, 1);
} else {
i++;
}
}
return lines;
}
function sc_notempty(lines) {
var line;
var emptyre;
var matchedempty;
var replacedlines;
replacedlines = new Array();
var i = 0;
while (i < lines.length) {
line = lines[i];
emptyre = new RegExp("^$", 'i');
matchedempty = line.match(emptyre);
if(matchedempty) {
lines.splice(i, 1);
} else {
i++;
}
}
return lines;
}
function sc_extractdomainname(authority, lines) {
for (var i = 0; i < lines.length; i++) {
line = lines[i];
alert(line);
alert(typeof(line));
if (line.chatAt(0) == '*') {
alert('test1');
continue;
}
if (line.chatAt(0) == '!') {
alert('test2');
line.chatAt(0) = '';
}
alert('test3');
checkline = sc_checknotasteriskline(authority, line);
if (checkline) {
domainname = checkline;
}
}
if (!domainname) {
for (var i = 0; i < lines.length; i++) {
line = lines[i];
alert(line);
if (line.chatAt(0) != '*') {
alert('test4');
continue;
}
if (line.chatAt(0) == '!') {
alert('test5');
line.chatAt(0) = '';
}
alert('test6');
checkline = sc_checkasteriskline(authority, line);
if (checkline) {
domainname = checkline;
}
}
}
return domainname;
}
It alerts 'ac', then 'string', then nothing.
