I am passing parameters to Facebook using JSON concept.I am passing Location name and Date in that. After location name i want to display Date in new line.Can any one help me how to give line break. Here is the my code.
Thanks in Advance.
NSString *att=[NSString stringWithFormat:#"{\"name\":\"%#\","
"\"href\":\"%#\","
"\"media\":[{\"type\":\"image\","
"\"src\":\"%#\","
"\"href\":\"%#\"}],"
"\"properties\":{\"Location\":\"%#\"\" Date\":\"%#\"}}",eventTitle.text,href,imageSource,imageHref,eventLocation.text,eventDate.text];
Not really a Facebook question. But certainly HTML-escaped spaces won't work.
You're probably looking for an escaped newline, \n
In fact, you'll need to escape it twice: once for NSString and once for JSON, ending up \n in your code
Related
I have an XML which I am using to parse news. News have a description. I'm using NSString to show that description in UILabel.
But, the description comes like this:
Bad news for Windows’ the researches show that Windows’ for years....
And it is being showed with those unwanted characters in UILabel. The numbers are changing in every string. They are not the sames.
I want to remove the characters that begins with &# and the numbers that follow. How can I do that? Which string encoding format should I use?
Thanks a lot.
EDIT: I don't have just one string. If I remove ’ from this one, there might be ᶺ in another one. It won't be removed.
I can remove &# characters and numbers too. But when I do that, In a string like that "In 1980, Jobs told us to৬ do something" the output will be "In , Jobs told us to do something" 1980 will be gone too, but I don't want that. That's a problem either.
These are ASCAII symbols so you need to use utf-8 string.check this link
so use this line of code
NSString *resultString = [NSString stringWithUTF8String:myAsciiString];
I have some xml that is coming back from a web service. I in turn use xslt to turn that xml into json (I am turning someone else's xml service into a json-based service). My service, which is now outputting JSON, is consumed by my iphone app using the de facto iphone json framework, SBJSON.
The problem is, using the [string JSONValue] method chokes, and I can see that it's due to line breaks. Lo and behold, even the FAQ tells me the problem but I don't know how to fix it.
The parser fails to parse string X
Are you sure it's legal JSON? This framework is really strict, so won't accept stuff that (apparently) several validators accepts. In particular, literal TAB, NEWLINE or CARRIAGE RETURN (and all other control characters) characters in string tokens are disallowed, but can be very difficult to spot. (These characters are allowed between tokens, of course.)
If you get something like the below (the number may vary) then one of your strings has disallowed Unicode control characters in it.
NSLocalizedDescription = "Unescaped control character '0x9'";
I have tried using a line such as: NSString *myString = [myString stringByReplacingOccurrencesOfString:#"\n" withString:#"\\n"];
But that doesn't work. My xml service is not coming back as CDATA. The xml does have a line break in it as far as I can tell (how would I confirm this). I just want to faithfully transmit the line break into JSON.
I have actually spent an entire day on this, so it's time to ask. I have no pride anymore.
Thanks alot
Escaping a new line character should work. So following line should ideally work. Just check if your input also contains '\r' character.
NSString *myString = [myString stringByReplacingOccurrencesOfString:#"\n" withString:#"\\n"];
You can check which control character is present in the string using any editor which supports displaying all characters (non-displayable characters as well). e.g. using Notepad++ you can view all characters contained in a string.
It sounds like your XSLT is not working, in that it is not producing legal JSON. This is unsurprising, as producing correctly formatted JSON strings is not entirely trivial. I'm wondering if it would be simpler to just use the standard XML library to parse the XML into data structures that your app can consume.
I don't have a solution for you, but I usually use CJSONSerializer and CJSONDeserializer from the TouchJSON project and it is pretty reliable, I have never had a problem with line breaks before. Just a thought.
http://code.google.com/p/touchcode/source/browse/TouchJSON/Source/JSON/CJSONDeserializer.m?r=6294fcb084a8f174e243a68ccfb7e2c519def219
http://code.google.com/p/touchcode/source/browse/TouchJSON/Source/JSON/CJSONSerializer.m?r=3f52118ae2ff60cc34e31dd36d92610c9dd6c306
I am getting problem while parsing xml files that contains some special characters like single quote,double quote (', "")etc.I am using NSXMLParser's parser:foundCharacters:method to collect characters in my code.
<synctext type = "word" >They raced to the park Arthur pointed to a sign "Whats that say" he asked Zoo said DW Easy as pie</synctext>
When i parse and save the text from above tag of my xml file,the resultant string is appearing,in GDB, as
"\n\t\tThey raced to the park Arthur pointed to a sign \"Whats that say\" he asked Zoo said DW Easy as pie";
Observe there are 2 issues:
1)Unwanted characters at the beginning of the string.
2)The double quotes around Whats that say.
Can any one please help me how to get rid of these unwanted characters and how to read special characters properly.
NSString*string =[string stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:#" \n\t"]];
The parser is apparently returning exactly what's in the string. That is, the XML was coded with the starting tag on one line, a newline, two tabs, and the start of the string. And quotes in the string are obviously there in the original (and it's not clear in at least this example why you'd want to delete them).
But if you want these characters gone then you need to post-process the string. You can use Rams' statement to eliminate the newline and tabs, and stringByReplacingOccurrencesOfString:WithString: to zap the quotes.
(Note that some XML parsers can be instructed to return strings like this with the leading/trailing stuff stripped, but I'm not sure about this one. The quotes will always be there, though.)
Is there any way to get newlines to be converted to actual linebreaks in UITableViewCell?
Right now they show up as \r\n (they come from a sqlite3 db) and just get displayed as such.
If I search and replace \r\n with actual return characters then it works fine, but I'm wondering if three is a proper way to do this?
Please don't suggest using other View types, the app is basically 100% complete save for this last bug and I don't want to re-test everything.
thanks
T
edit: Solution in case anyone has a similar issue:
cellText = [cellText stringByReplacingOccurrencesOfString:#"\\r\\n" withString:#"\n"];
Olaf got me on the right path, thanks.
IIRC on the Mac newline is \n, but this is not the question.
If you are seeing the four characters "\r\n" on the screen then I assume the string coming from db is escaping the backslashes. Thus when you do the manually rewrite the (escaped) string \\r\\n is converted into \n.
The standard cell is using an embedded UILabel anyway, so rewriting your cell with a custom cell using another UILabel would not change much. ;)
I just finished fixing this very issue in my code using:
myString = [[myString
stringByReplacingOccurrencesOfString:#"\\\\n" withString:#"\n"]
stringByReplacingOccurrencesOfString:#"\\\\r" withString:#""];
Hope that helps
I have a plist where I place my strings, with type string.
When I access the strings in the plist, it doesnt interpret \n and \t.
So when I display these strings it will display \tTitle
and not Title with tab indention.
But if I use
#define str1 #"\tTitle"
and just place it in header files, it works.
Please help.
Maybe something is wrong with the way you are accessing the string. Take a look here: Property list programming guide