sanitize search twitter

sanitize.m

//Create the regular expression to match against whitespace or % or ^
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"(\\s|%|^)" options:NSRegularExpressionCaseInsensitive error:&error];
	
//Create the regular expression to match against hash tags
NSRegularExpression *regexHash = [NSRegularExpression regularExpressionWithPattern:@"#" options:NSRegularExpressionCaseInsensitive error:&error];
	
// create the new string by replacing the matching of the regex pattern with the template pattern(whitespace)
NSString *tempString = [regex stringByReplacingMatchesInString:searchTerm options:0 range:NSMakeRange(0, [searchTerm length]) withTemplate:@"%20"];
	
// create the new string by replacing the matching of the regex pattern with the template pattern(whitespace)
NSString *hashTempString = [regexHash stringByReplacingMatchesInString:tempString options:0 range:NSMakeRange(0, [searchTerm length]) withTemplate:@"%23"];

searchTerm = hashTempString;