always returns false iphone obj c question

Question

Hi everyone,

I am trying to check a string to see if there are any misspelled words in it. I'm using apples UITextChecker class to do so like so:

#import <UIKit/UITextChecker.h>
        id textChecker = [UITextChecker new];

        NSInteger currentOffset = 0;
        NSRange currentRange = NSMakeRange(0, 0);
        NSRange stringRange = NSMakeRange(0, 2);
        NSArray *guesses;
        NSString *theLanguage = [[UITextChecker availableLanguages] objectAtIndex:0];
        if (!theLanguage)
            theLanguage = @"en_US";


    currentRange = [textChecker rangeOfMisspelledWordInString:currentText range:stringRange
                                                           startingAt:currentOffset wrap:NO language:theLanguage];

    //  NSLog("@currentRange is %i", currentRange);
        if (currentRange.location == NSNotFound) {
                NSLog(@"No wrong words");
            }
        else {
            NSLog(@"Words were found wrong");
        }
    }

It always returns "Words were found wrong", no matter what words is put in

What am I doing wrong??

Thanks!!

Answer 1

What examples of words are you testing? I'm guessing your problem is probably the fact that stringRange is set to {0,2} so it's only checking the first two characters in the string for misspelled words. If those first two characters are not a word, then I assume that it says it's misspelled. Try setting it to {0,string.length} instead and see what happens.

Answer 2

Final version. The code which works for me (even for a single word) -

NSRange range = NSMakeRange(0, 0);
range = [textChecker rangeOfMisspelledWordInString:[currentWord lowercaseString] 
                                             range:NSMakeRange(0, [currentWord length]) 
                                        startingAt:0 
                                              wrap:NO 
                                          language:@"en_US"];
if (range.location == NSNotFound) {
    NSLog(@"Word found");
}

Note two changes against Apple's original code:

• language is forcefully set to @"en_US" as [[UITextChecker availableLanguages] objectAtIndex:0]; returned @"pt_PT".
• range is (0, length) instead of (0, length - 1)