122 Challenge

main122easy.m

//
//  main.m
//  Easy  Challenge #122 words with ordered vowels.
//

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{
    
    @autoreleasepool {
        
    
        NSArray *words;
        
        NSString *word;
        NSString *fileString = nil;
        NSString *filePath = @"/Users/enable1.txt";
        
        
        NSError *error;
        NSUInteger numOfMatches;
        
        NSRegularExpression *searchPattern;
        
        NSData *rawData = [NSData dataWithContentsOfFile: filePath];
    
        if (!rawData) {
            NSLog(@"Error opening file or reading file!");
            return 1;
        }
    
        fileString = [[NSString alloc] initWithData: rawData encoding: NSUTF8StringEncoding];
        if (!fileString) {
            NSLog(@"Error converting raw data to string");
            return 1;
        }
        
        words = [fileString componentsSeparatedByString:@"\n"];
        if (!words)  {
            NSLog(@"Error Separating out Strings");
            return 1;
        }
        
        for (word in words) {
            
            if ([word length] >= 6)
            {
                searchPattern = [NSRegularExpression
                                 regularExpressionWithPattern: @"[b-d | f-h | j-n | p-t | v-x | z]*a[b-d | f-h | j-n | p-t | v-x | z]*e[b-d | f-h | j-n | p-t | v-x | z]*i[b-d | f-h | j-n | p-t | v-x | z]*o[b-d | f-h | j-n | p-t | v-x | z]*u[b-d | f-h | j-n | p-t | v-x | z]*y[b-d | f-h | j-n | p-t | v-x | z]*"
                                                                          options: NSRegularExpressionCaseInsensitive
                                                                            error: &error];

                numOfMatches = [searchPattern numberOfMatchesInString: word
                                                              options: 0
                                                                 range: NSMakeRange(0, [word length])];
                if (numOfMatches > 0) 
                   NSLog(@"%@", word);
            }
            searchPattern = nil;
            
        }
        return 0;
    }
}