Cut NSString to carriage return

Question

I have NSString example:

@"Hello, Hello

How are you?"

I need to keep them words to transfer carriage. That is @"Hello, Hello"

I have text from UIWebView. Text I get

NSString *myText = [self.webview stringByEvaluatingJavaScriptFromString:@"document.documentElement.innerText"];
    NSLog(@"my text -> %@",myText);

Thanks

Answer 1

Alexander, if I'm reading this right, you want to cut string before new line symbol comes.

eg.
Before:"Hello
World"
After:"Hello"

If so you can use this NSString category:

NSString+CutToNewLine.h

#import <Foundation/Foundation.h>

@interface NSString (CutToNewLine)
- (NSString *)cutToNewLine;
@end

NSString+CutToNewLine.m

#import "NSString+CutToNewLine.h"


@implementation NSString (CutToNewLine)
- (NSString *)cutToNewLine
{
    NSRange newLineRange = [self rangeOfString: @"\n"];
    NSRange stringBeforeNewLineRange = NSMakeRange(0, newLineRange.location);

    NSString *resultString = [self substringWithRange: stringBeforeNewLineRange];

    return resultString;
}

@end

Results

 NSString *s = @"Hello\nWorld!";
 NSLog(@"%@", s);
 NSLog(@"%@", [s cutToNewLine]);

Output

2013-03-04 20:02:17.075 NSStringCut[734:f07] Hello
World!
2013-03-04 20:02:17.076 NSStringCut[734:f07] Hello

Process finished with exit code 0

Code sample you can find here

BR
Eugene.