How to find words and full stop position from NSString in iOS?

Question

I want to find any word or full stop from a nsstring.

NSString *str = @"Hi, my name is Tina. I want to ask something. I am trying a lot. But I am not able. To find full stop. Position Everytime. It come in str.";

In this I want to track the position of full stop not first full stop positions every full stop position in "Str".

I know how to find words but not able to get full stop position every time it come on my str.

Here is what am I doing

NSString *str = @"Hi, my name is Tina. I want to ask something. I am trying a lot. But I am not able. To find full stop. Position Everytime. It come in str.";

NSInteger count = 0;
NSArray *arr = [str componentsSeparatedByString:@" "];
for(int i=0;i<[arr count];i++)
{
    if([[arr objectAtIndex:i] isEqualToString:@"."])
    count++;

}

I don't want this as it give me str character length not by word. I want to check after how many words full stop is comming.

if ([str3 rangeOfString:@"."].location == xOut)  {  // dont want

or

if ([str3 rangeOfString:@"."].location != NSNotFound)  {  // dont want

Any Idea or suggestion would be highly welcome.

Please check [this](http://stackoverflow.com/questions/3632672/nsstring-character-position) link it might help you — Saurav Mac, Jan 30 '14 at 11:40
What do you actually want to do? Are you really looking for the positions of full stops or are you looking for sentences in the string? — Fogmeister, Jan 30 '14 at 12:12
I want to check full stop position after words. Menas in str after space first full stop is comming on position 5. And same for second full stop and so on... — Tina, Jan 30 '14 at 12:40

score 1 · Answer 1 · answered Jan 30 '14 at 11:26

NSString *str = @"Hi, my name is Tina. I want to ask something. I am trying a lot. But I am not able. To find full stop. Position Everytime. It come in str.";
[str enumerateSubstringsInRange:NSMakeRange(0, str.length) options:NSStringEnumerationBySentences usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
    [substring enumerateSubstringsInRange:NSMakeRange(0, substring.length) options:NSStringEnumerationByWords | NSStringEnumerationReverse usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
        NSLog(@"%@", substring); // last word

        *stop = YES;
    }];
}];

This will give you the last word of each sentence.

how to put the value of substring to nsstring? means NSString *Str2 = substring; — Tina, Jan 30 '14 at 11:41
__block NSString *lastWord = nil; above the enumeration then in the block, instead of the NSLog - lastWord = substring; — Andrew, Jan 30 '14 at 12:16

Akshay Nalawade · Answer 2 · 2014-01-30T12:41:51.373

1

Use this code -

NSString *str = @"Hi, my name is Tina. I want to ask something. I am trying a lot. But I am not able. To find full stop. Position Everytime. It come in str.";

NSInteger count = 0;
NSArray *arr = [str componentsSeparatedByString:@"."];

for(int i = 0; i< [arr count]; i++)
{
    NSString *sentence = [arr objectAtIndex:i];
    sentence = [sentence stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    NSArray *wordArray = [sentence componentsSeparatedByString:@" "];
    count = [wordArray count];
    NSLog(@"No of words after full stop is comming = %i", count);

}

edited Jan 30 '14 at 12:41

answered Jan 30 '14 at 11:44

Akshay Nalawade

1,447
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sentance is giving error, fast enumeration variable cant be modified in ARC by default: declare the variable_strong to allow this – Tina Jan 30 '14 at 11:53

score 1 · Answer 3 · edited Jan 30 '14 at 12:46

Try this

NSString *str = @"Hi, my name is Tina. I want to ask something. I am trying a lot. But I am not able. To find full stop. Position Everytime. It come in str.";

NSInteger count = 0;
NSArray *arr = [str componentsSeparatedByString:@" "];

for(int i=0;i<[arr count];i++)
{

       NSString *arrStr=[arr objectAtIndex:i];

       for(int j=0;j<arrStr.length;j++){

       NSString *Schar=[arrStr substringWithRange:NSMakeRange(j, 1)];

       if([Schar isEqualToString:@"."])

         count++;

      }



}

here,Count will show number of time . is in string.

score 0 · Answer 4 · edited May 23 '17 at 12:04

0

Have a look @ following links :

NSUInteger numberOfOccurrences = [[yourString componentsSeparatedByString:@"."] count] - 1;

Number of occurrences of a substring in an NSString?

Number of Occurrences of a Character in NSString

Hope this helps :)

edited May 23 '17 at 12:04

Community

1
1

answered Jan 31 '14 at 12:21

Swati

2,870
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How to find words and full stop position from NSString in iOS?

4 Answers4