I am using the Google Speech API unofficially. If you send it an audio file saying "Test", it will respond with this:
{"result":[]}
{"result":[{"alternative":[{"transcript":"test","confidence":0.88845605},{"transcript":"tests"},{"transcript":"the test"},{"transcript":"text"},{"transcript":"Test"}],"final":true}],"result_index":0}
I need to remove the first line of this response so my parser will not error out.
Is there an official way to remove this first line in the JSON?
I am using Xcode 6.1 (I haven't updated Xcode yet) with the iOS 6.1 SDK.
// Assuming your string looks something like this
NSString *fileContents = #"Bob Smith: 1 (234)-567-8901\nBob Smith: bob#bob.com";
// Lets store the information on each new line in an array
NSArray *lines = [fileContents componentsSeparatedByString:#"\n"];
// The second object will contain the email
NSString *email = [lines objectAtIndex:1];
NSLog(#"%#",email);
NSString* fileRoot = [[NSBundle mainBundle]
pathForResource:#"test" ofType:#"txt"];
NSString* fileContents = [NSString stringWithContentsOfFile:fileRoot
encoding:NSUTF8StringEncoding error:nil];
NSArray* allLinedStrings = [fileContents componentsSeparatedByCharactersInSet:
[NSCharacterSet newlineCharacterSet]];
In this array you can judge if it contains a phoneNumber, str is every element.
NSString *phoneNumber = [str componentsSeparatedByString:#":"][1];
if phoneNumber is a phoneNumber format. Then delete this line.
Related
I have a string like so:
NSString *path = #"\\fake\aaa\bbb\ccc\ddd\eee.pdf";
and I split the string into an array like so:
NSArray *array = [path componentsSeparatedByString:#"\"];
Now there are two things I need here.
I need a string with everything except eee.pdf
I need the last item in the array as a string (eee.pdf)
How would I do this?
Just for fun, there is a little-known way to get an NSURL with its benefit from a windows file path
NSString *path = #"\\\\fake\\aaa\\bbb\\ccc\\ddd\\eee.pdf";
NSURL *url = CFBridgingRelease(CFURLCreateWithFileSystemPath(kCFAllocatorDefault, (CFStringRef)path, kCFURLWindowsPathStyle, false));
NSString *fileName = url.lastPathComponent;
NSString *parentDirectory = url.URLByDeletingLastPathComponent.path;
Finally you have to convert parentDirectory back to windows path style (backslashes).
But if you mean POSIX paths used in OS X, it's much easier
NSString *path = #"/fake/aaa/bbb/ccc/ddd/eee.pdf";
NSURL *url = [NSURL fileURLWithPath:path];
NSString *fileName = url.lastPathComponent;
NSString *parentDirectory = url.URLByDeletingLastPathComponent.path;
I think you're trying to get the filepath and filename from a full path. There are better ways of doing that. But since you simply asked for the question, here's my answer. Please note that this is not the best approach. In addition, you have to escape the backslashes by using a preceding backslash.
NSString *path = #"\\fake\\aaa\\bbb\\ccc\\ddd\\eee.pdf";
NSArray *array = [path componentsSeparatedByString:#"\\"];
NSMutableArray *removedArray = [[NSMutableArray alloc] init];
for(int i=0; i< array.count -1; i++){
[removedArray addObject:[array objectAtIndex:i]];
}
NSString *joinedString =[removedArray componentsJoinedByString:#"\\"];
NSString *fileName = [array lastObject];
NSLog(#"Path: %#", joinedString);
NSLog(#"Filename: %#", fileName);
For the last element use the lastObject property of the NSArray.
For a string without the last element use subarrayWithRange: using array.count-1 for the NSRange length.
Then join the remaining array with componentsJoinedByString:.
NSString *fileName = [array lastObject];
NSArray *newArray = [array subarrayWithRange:NSMakeRange(0, array.count-1)];
NSString *directoryPath = [newArray componentsJoinedByString:#"\\"];
I'm able to successfully parse the contents of a XML file using TouchXML, but when I try to read an individual NSString, from the NSMutableArray that stores the parsed content, the iPhone app crashes.
My NSLog shows me that the file has been parse as it should, giving this output:
(
{
href = "mms://a19349.l412964549958.c41245496.f.lm.akamaistream.net/D/194359/4125596/v0001/reflector:49944";
},
{
href = "mms://a4322.l4129624350471.c414645296.a.lm.akamaistream.net/D/473432/4129566/v0001/reflector:546441";
} )
Here is the code I'm using to do the parsing:
NSMutableArray *res = [[NSMutableArray alloc] init];
.... Parsing happens here ....
Then I try to retrieve the string from the NSMutableArray, using this code (and the app crashes when trying to read this line of code, posted below NSMutableString *string1 = [NSMutableString stringWithString:url];
NSString *url = [[NSString alloc] init];
url = [res objectAtIndex:0];
NSMutableString *string1 = [NSMutableString stringWithString:url];
[string1 deleteCharactersInRange: [string1 rangeOfString: #"href = "]];
[string1 deleteCharactersInRange: [string1 rangeOfString: #";"]];
NSLog(#"Clean URL: %#", string1);
Please, how can I solve this problem? Thank you!
TouchXML returns you an array of NSDictionaries. In order to extract string you need to take value from this NSDictionary:
NSString *url = [[res objectAtIndex:0] objectForKey:#"href"];
I'm importing a plist into an NSDictionary object and want to change the contents of the plist once in the dictionary to lowercase. I have tried several different ways with no luck. Maybe I am supposed to edit the strings that are inside the NSDictionary, but then I don't know how to do that.
What I have currently imports the plist correctly, but the lowercaseString line effectively does nothing.
NSString *contents = [[NSBundle mainBundle] pathForResource:#"Assets/test" ofType:#"plist"];
NSString *newContents = [contents lowercaseString];
NSDictionary *someDic = [NSDictionary dictionaryWithContentsOfFile:newContents];
for (NSString *someData in someDic) {
NSLog(#"%# relates to %#", someData, [someDic objectForKey:someData]);
}
I NSLog'd the "content" string and it gave me a path value, so obviously changing that to a lowercaseString wouldn't do anything. I'm feeling like I have to access the strings within the dictionary.
This line
NSString *newContents = [contents lowercaseString];
is change the path string returned from
NSString *contents = [[NSBundle mainBundle] pathForResource:#"Assets/test" ofType:#"plist"];
so you will end up with something like ../assets/test.plist
you will need to walk through the contents of someDic an create a new dictionary based on the old turning strings into lowercase, if you are only concerned about values directly in someDic you can do something like
for( NSString * theKey in someDic )
{
id theObj = [someDic objectForKey:theKey];
if( [theObj isKindOfClass:[NSString class]] )
theObj = [theObj lowercaseString];
[theNewDict setObject:theObj forKey:theKey];
}
I'm trying to read in a text file and save character arrays as NSStrings.
For example, if the file contains just the word "Hello" I want to have an NSString containing "Hello"
How can I do this?
NSString *string = [NSString stringWithContentsOfFile:filePath usedEncoding:&encoding error:&error];
filePath should be a string with the path to file
encoding (NSStringEncoding) will contain the encoding used
error (NSError *) will contain an error if one occurs
string will contain the contents of the file or will be nil if an error occurred
You can use the NSString instance method -initWithContentsOfFile:encoding:error: or the 'convenience method' +stringWithContentsOfFile:encoding:error:
In the first instance:
NSString *fileContents = [[NSString alloc] initWithContentsOfFile:pathToFile encoding:NSUTF8StringEncoding error:&error];
In the second:
NSString *fileContents = [NSString stringWithContentsOfFile:pathToFile encoding:NSUTF8StringEncoding error:&error];
where
pathToFile is an NSString that is the path to the file you're reading
encoding is one of the NSStringEncoding constants (have a look at the docs)
error is a pointer to an NSError object which is populated by the methods if an error occurs.
The choice between the two depends on whether you want an autoreleased string at the end or not.
you could use something like:
NSString *string = [[NSString alloc] initWithContentsOfFile:#"/path/to/file/goes/here.txt"];
if you know the exact path of the file.
Times like this and my Objective-C noobness shows. :-/
So, the more I work on a routine to do this, the more complex it's becoming, and I'm wondering if there isn't just a simple method to change the name of a filename in a path. Basically, I want to change #"/some/path/abc.txt to #"/some/path/xyz.txt -- replacing the filename portion but not changing the path or extension.
Thanks!
Try the following:
NSString* initPath = ...
NSString *newPath = [[NSString stringWithFormat:#"%#/%#",
[initPath stringByDeletingLastPathComponent], newFileName]
stringByAppendingPathExtension:[initPath pathExtension]];
What Vladimir said, just broken down more to make it a little easier to read:
NSString *pathToFile = #"/Path/To/File.txt";
NSString *oldFileName = [pathToFile lastPathComponent];
NSString *newFileName = [#"Document" stringByAppendingPathExtension:[oldFileName pathExtension];
NSString *newPathToFile = [pathToFile stringByDeletingLastPathComponent];
[newPathToFile stringByAppendingString:newFileName];
Take a look at the "Working With Paths" section of the NSString docs. In particular, lastPathComponent, pathExtension and stringByDeletingPathExtension: should do what you want.
You can try something like this:
NSRange slashRange = [myString rangeOfString:#"\\" options:NSBackwardsSearch];
NSRange periodRange = [myString rangeOfString:#"." options:NSBackwardsSearch];
NSString *newString = [myString stringByReplacingCharactersInRange:NSMakeRange(slashRange.location, periodRange.location) withString:#"replacement-string-here"];
What this code does is it gets the location of the \ and . characters and performs a backwards search so that it returns the last occurrence of it in the string.
Then, it creates a new range based on those previous ranges and replaces the contents in that range with stringByReplacingCharactersInRange:.
Try this:
NSString* path = [startString stringByDeletingLastPathComponent];
NSString* extension = [startString pathExtension];
NSString* replacementFileName = [#"foo" stringByAppendingPathExtension: extension];
NSString result = [path stringByAppendingPathComponent: replacementFileName];