Building unicode string from existing NSString

Question

I have an NSString like this @"uE604" that I want to add a backslash too in order to use it as a unicode character. However I am having issues trying to get that to work. If I add @"\\" to the front of it, it doesn't work.

Any way I can get it working?

par · Accepted Answer · 2015-10-02 15:00:03Z

1

Try using just one slash: @"\uE604".

answered Oct 2, 2015 at 15:00

par

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7 Comments

Jargen89 Over a year ago

how would I concatenate that string to @"\"?

par Over a year ago

The sequence \uXXXX is a unicode string literal. The hex sequence is decoded at compile-time and the actual unicode symbol is inserted in its place. Is this when you want to put the character in, or do you want to do it with some arbitrary hex string at runtime?

par Over a year ago

If you want a backlash in front of a unicode character at compile-time, you would do @"\\\uE604".

Jargen89 Over a year ago

Okay, so I would have to try and convert the initial text into a hex string and then concatenate that to 5c, then do another conversion into the unicode character?

par Over a year ago

If you want to do it at runtime, yes. First convert the hex string to an integer (see stackoverflow.com/a/3648562/312594), then initialize an NSString with its value (see stackoverflow.com/a/30817609/312594).

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Caio · Accepted Answer · 2015-10-02 15:01:29Z

0

Just use one slash, since you are working with Unicode you don't need to escape the slash:

NSString *s = @"\u266A";

answered Oct 2, 2015 at 15:01

Caio

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