在Objective-C中转义行情 [英] Escape Quotes in Objective-C

问题描述

  NSString * unescaped = [ textField文本]; 
 NSString * escapedString =（__bridge_transfer NSString *）CFURLCreateStringByAddingPercentEscapes（
 NULL，
（__bridge_retained CFStringRef）unescaped，
 NULL，
（CFStringRef）@！* ）;; @& = + $，/？％＃[]，
 kCFStringEncodingUTF8）; 
  

哪个效果好，但不添加转义引号：

如何在IOS中转义引号？

解决方案

我需要把用户输入的NSString从 [textField text] ，并确保如果字符串中有引号，则它们会正确转义，以便通过POST语句发送。

我的解决方案是：

  unescaped = [unescaped stringByReplacingOccurrencesOfString：@\withString：@\\\] ; 
  

谢谢

I'm using this code snippet to encode characters to be friendly with a POST request:

   NSString *unescaped = [textField text];
   NSString *escapedString = (__bridge_transfer NSString *)CFURLCreateStringByAddingPercentEscapes(
                                                                                  NULL,
                                                                                  (__bridge_retained CFStringRef)unescaped,
                                                                                  NULL,
                                                                                  (CFStringRef)@"!*'();:@&=+$,/?%#[]",
                                                                                  kCFStringEncodingUTF8);

Which works great, but does not add escape Quotation marks: "

How do I escape Quotation marks in IOS?

解决方案

I think I didn't word the question correctly.

I needed to take the user inputted NSString from [textField text] and make sure that if there are quotation marks in the string, they are escaped properly in order to send through a POST statement.

My solution was:

unescaped = [unescaped stringByReplacingOccurrencesOfString:@"\"" withString:@"\\\""];

Thanks

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