I am trying to convert an emoji to an NSString. I previously asked a question on how to do the opposite (convert an NSString to a unicode) at NSString to Emoji Unicode. I thought perhaps it would be best to ask this as a new question here.
How can I convert an NSString containing an emoji (π) to an NSString containing a unicode in this format (U0001F603)?
This question is basically the reverse engineering of the solution from the previous page. The catch is the project does not use the \ue415 format, but rather the U0001F603 format.
Edited per comment:
2014-07-11 11:37:19.448 emoticon[******] unicode: π
unicode = [NSString stringWithFormat:#"%#\\UFE0E", unicode];
2014-07-11 11:37:19.449 emoticon[******] unicode: π\UFE0E
SECOND COMMENT RESPONSE
I'm not entirely sure if I follow what you mean by I didn't add the first line of code. I hope I haven't been unclear. To try and be more specific on what I would like, I logged your code in, and then logged what I wish to get:
NSString *first = #"π";
NSString *second = #"π\\UFE0E";
NSString *third = #"U0001F603\\UFE0E";
2014-07-11 12:00:45.815 emoticon[******] first: π, second: π\UFE0E, third: U0001F603\UFE0E
2014-07-11 12:00:45.816 emoticon[******] desiredString: U0001F603
My hope is to produce the desiredString by converting the emoji to the desired string.
THIRD COMMENT RESPONSE
What you need is using the escape character \U0000FE0E to the end of all Unicode characters to make it skip the emoji and display the proper Unicode character.
Here's the code:
#"π" //This shows the colorful emoji icon.
#"π\U0000FE0E" //This shows the good old Unicode character.
You can also add it to the character code:
#"U0001F603\U0000FE0E"
Here is a "pseudo-code" (JavaScript, you can run it in your browser's console) ..for opposite-direction.
String.fromCharCode(
((0x1F603 - 0x10000) >> 10) | 0xD800
,
((0x1F603 - 0x10000) % 0x400) | 0xDC00
)
=>>"π"
Just reverse the bytewise operations, and zero-pad it.
If you are a programmer it should be more than easy for you.
..give a man a fish...
source: JavaScript Ninja - Easy Unicode Emoji Generator ππ π¬
Related
I am parsing XML using NSXMLParser. Everything works good except one XML tag:
<place>USA , Boston</place>
when I parse this tag, the value is
USA , Boston
Somehow spaces are added between words. Any ideas why it is happening and how can I fix it?
UPDATED
The code I am using is straightforward. The string that I receive in parser:foundCharacters: delegate call is already with spaces. I am using:
[_currentString appendString:[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]];
to remove spaces and new lines, but it is only for the beginning and the end of the string.
In FoundCharacters method we have to replace these special character.
string =[string stringByReplacingOccurrencesOfString:#"\t"
withString:#""];
[_currentString appendString:string];
Will be good if you show you code of in short if you can edit the XML format than one solution will be you can add the tag value between CDATA like
<place><![CDATA[USA , Boston]]></place>
CDATA section is a section of element content that is marked for the parser to interpret as only character data
For my app I want to be able to use unicode caracters like \n, and these ones :
http://www.easyapns.com/category/just-for-fun
The text is stored in a sqlite3 database, and when I read it, I get for example the text \ue415 instead of the smiley. I neither have a line break, but a \n .
I'm able to display the smileys and line breaks using this piece of code :
NSString* unicodeString = [myString stringByReplacingOccurrencesOfString:#"\\n" withString:#"\n"];
unicodeString = [unicodeString stringByReplacingOccurrencesOfString:#"\\ue022" withString:#"\ue022"];
// etc...
But I would like to find a generic way to do this, in order to be able to display all the unicode caracters.
I'm getting the text from my sqlite3 database this way :
NSString* title = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 3)];
I tried to replace \\ by \, but it is not possible to write the string #"\", because it escapes the " ... I tried to replace \\\\ by \\, but it doesn't work. I also tried to get the string from the database using other encoding, without success...
Any idea ?
I finally found my solution there (not the accepted answer, the one from Nikolai Ruhe) :
Using Objective C/Cocoa to unescape unicode characters, ie \u1234
NSString* convertedString = [myString mutableCopy];
CFStringRef transform = CFSTR("Any-Hex/Java");
CFStringTransform((__bridge CFMutableStringRef)convertedString, NULL, transform, YES);
It does not escape the \n though, but it can easilly be done with stringByReplacingOccurrencesOfString.
I have a problem to convert an URL string, which I extract from XML file to NSString.
The URL string look like this, it looks like odd but it is URL format.
%3CTEXTFORMAT%20LEADING%3D%222%22%3E%3CP%20ALIGN%3D%22LEFT%22%3E%3CFONT%20FACE%3D%22Arial%22%20SIZE%3D%2212%22%20COLOR%3D%22%23000000%22%20LETTERSPACING%3D%220%22%20KERNING%3D%220%22%3E%u53F0%u5317%u7E2323141%u65B0%u5E97%u6C11%u6B0A%u8DEF130%u5DF714%u865F5%u6A13%3C/FONT%3E%3C/P%3E%3C/TEXTFORMAT%3E
However, when I use stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding method, it return nil.
After some experiment and research, seems this URL contain %u cause problem while converting URL and this %u looks like unicode, however, I try to remove all %u then stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding method return a proper string without any problem.
Does anyone know how can I convert this URLstring to NSString properly?
It is Unicode han characters in your urlString thats why it is not converting.
Replace %u to \u and you will get your String.
NSString *str=#"%3CTEXTFORMAT%20LEADING%3D%222%22%3E%3CP%20ALIGN%3D%22LEFT%22%3E%3CFONT%20FACE %3D%22Arial%22%20SIZE%3D%2212%22%20COLOR%3D%22%23000000%22%20LETTERSPACING%3D%220%22%20KERNING%3D%220%22%3E%u53F0%u5317%u7E2323141%u65B0%u5E97%u6C11%u6B0A%u8DEF130%u5DF714%u865F5%u6A13%3C/FONT%3E%3C/P%3E%3C/TEXTFORMAT%3E";
str=[str stringByReplacingOccurrencesOfString:#"%u" withString:#"\\u"];
NSString *convertedStr=[str stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(#"converted string is %# \n",convertedStr);
output :---------------
converted string is <TEXTFORMAT LEADING="2"><P ALIGN="LEFT"><FONT FACE="Arial" SIZE="12" COLOR="#000000" LETTERSPACING="0" KERNING="0">\u53F0\u5317\u7E2323141\u65B0\u5E97\u6C11\u6B0A\u8DEF130\u5DF714\u865F5\u6A13</FONT></P></TEXTFORMAT>
for more Info follow this url
This is chinese unicode char
here is some code that will prove it:
NSString *newStr=#"\u53F0\u5317\u7E2323141\u65B0\u5E97\u6C11\u6B0A\u8DEF130\u5DF714\u865F5\u6A13";
NSLog(#"chinese string is %#",[newStr stringByReplacingPercentEscapesUsingEncoding:NSUTF16StringEncoding]);
output:----------------------
ε°εηΈ£23141ζ°εΊζ°ζ¬θ·―130ε··14θ5ζ¨
go to google translate converting this string will give you someone's address.
as :-
Citizens Xindian, Taipei County 23141 Road 130, 5th Floor, No. 14, Lane
NSSet *subFolders = [_account subscribedFolders];
NSLog(#"subFolders: %#",subFolders);
Output:
...
"[Gmail]/\U05d8\U05d9\U05d5\U05d8\U05d5\U05ea",
"[Gmail]/\U05d7\U05e9\U05d5\U05d1"
...
Is there any way I can show the above text in its original language (Hebrew) ?
Things I tried:
changing the debugger from LLDB to GDB - Didn't work
Checking under preferences -> Text Editing UTF-* is selected
Thanks
There is no issue with displaying unicode characters in the console, so I would assume it's the way the string is getting into the set in the first place.
I would suggest iterating over all the objects inside subFolders with something like:
for( id object in [subFolders allObjects] ) {
//Print out the name of the item explicitly
}
Even if this doesn't work, it at least lets you work with the strings directly. If it's still printing out:
"[Gmail]/\U05d8\U05d9\U05d5\U05d8\U05d5\U05ea"
It would look as if you're being sent escaped unicode characters, and I would suggest this: https://stackoverflow.com/a/7861345/352891 - this may work directly on NSSet's description
NSString* strOld=[NSString stringWithFormat:#"%#",responseObject];
NSLog(#"%#",[NSString
stringWithCString:[strOld cStringUsingEncoding:NSUTF8StringEncoding]
encoding:NSNonLossyASCIIStringEncoding]);
I have a NSDictionary created with data from a web api.
Here is the dictionary logged:
{
chapter = {
text = "\n \tAmo\U00cc\U0081s";
};
}
When loging [dict objectForKey:#"chapter"] looks like this:
{
text = "\n \tAmo\U00cc\U0081s";
}
And when logging [dict objectForKey:#"text"] I get
AmoΓs
which is not correct, it should be Amo\U00cc\U0081s / AmΓ³s
It seems to be an encoding problem, but I can't figure it out.
Any idea why this is happening?
Thanks
The NSLog is printing correctly!!!
You can not print Unicode text to log. You have new line, a tab and \U00cc and \U0081 which is converting to some un-readalbe texts.
This is not a bug. CF and Cocoa interpret %S and %C differently from how printf and its cousins interpret them. CF and Cocoa treat the character(s) as UTF-16, whereas printf (presumably) treats them as UTF-32.
The CF/Cocoa interpretation is more useful when working with Core Services, as some APIs (such as the File Manager) will hand you text as an array of UniChars, not a CFString; as long as you null-terminate that array, you can use it with %S to print the string.
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