Javascript Non UTF-8 Character Searching for Google Chrome Extension

Question

Edit:

I am creating a Chrome Extension and the files must be UTF-8 encoded. I use JQuery to get contents from page, and check that if that contains specific strings that contains Ö, ı and İ. However, because the Chrome forces files must be encoded UTF-8; I cannot perform a search of "İ, ı, Ö".

var p = txt.indexOf("İ");

Does not work as I need because I cannot save the files with İ, Ö or ı.

UTF-8 can represent pretty much any character, as long as you have a Unicode-aware text editor. Do you mean that the files must be saved as ASCII? — Tyler, Jun 04 '11 at 21:40
By the way, I highly recommend reading this: http://www.joelonsoftware.com/articles/Unicode.html — Tyler, Jun 04 '11 at 21:40
Isn't the bug that Javascript doesn't support Unicode? You should be able to write what you have written there without any trouble. — tchrist, Jun 05 '11 at 18:13

score 7 · Accepted Answer · answered Jun 04 '11 at 18:52

7

JavaScript string literals include a syntax for expressing special characters.

For instance, 'Ö' and '\u00D6' are identical strings in JavaScript.

To find the unicode literal for a specific character, you can do this:

'Ö'.charCodeAt(0).toString(16); // yields "d6"; the code is "\u00D6"

Therefore, to search for a Ö in a string, you could do:

var toSearch = "abc Ö def";
if (toSearch.indexOf('\u00D6') > -1) {
    // found!
}

If you need further help, try posting a code sample.

answered Jun 04 '11 at 18:52

Chris Nielsen

14,731
7
48
54

Thats the quickest solution for me. Thanks. – Mustafa Jun 04 '11 at 18:54
What is a special character? Any code point should stand for itself. You shouldn't need all those lame escapes. Just edit in UTF-8 and be done. – tchrist Jun 05 '11 at 18:14

score 2 · Answer 2 · edited Jun 05 '11 at 17:58

2

encodeURIComponent(your string)

encode it when you save the file, and encode the string before you search

http://www.w3schools.com/jsref/jsref_encodeURIComponent.asp

edited Jun 05 '11 at 17:58

Andrei Sfat

8,440
5
49
69

answered Jun 04 '11 at 18:48

Chester Copperpot

146
1
7

Thanks, both works for me but I will go with \u... instead :) – Mustafa Jun 04 '11 at 18:54

Javascript Non UTF-8 Character Searching for Google Chrome Extension

2 Answers2