//
//  NSString+Unicode.m
//  GIGA
//
//  Created by lianxiang on 2018/9/6.
//  Copyright © 2018年 com.giga.ios. All rights reserved.
//

#import "NSString+Unicode.h"

@implementation NSString (Unicode)
- (NSString *)replaceUnicode:(NSString *)unicodeStr {
    
    NSString *tempStr1 = [unicodeStr stringByReplacingOccurrencesOfString:@"\\u"withString:@"\\U"];
    NSString *tempStr2 = [tempStr1 stringByReplacingOccurrencesOfString:@"\""withString:@"\\\""];
    NSString *tempStr3 = [[@"\""stringByAppendingString:tempStr2]stringByAppendingString:@"\""];
    NSData *tempData = [tempStr3 dataUsingEncoding:NSUTF8StringEncoding];
    NSString* returnStr = [NSPropertyListSerialization propertyListFromData:tempData
                                                           mutabilityOption:NSPropertyListImmutable
                                                                     format:NULL
                                                           errorDescription:NULL];
    
    return [returnStr stringByReplacingOccurrencesOfString:@"\\r\\n"withString:@"\n"];
}

//将 &lt 等类似的字符转化为HTML中的“<”等
- (NSString *)htmlEntityDecode:(NSString *)string
{
    string = [string stringByReplacingOccurrencesOfString:@"&quot;" withString:@"\""];
    string = [string stringByReplacingOccurrencesOfString:@"&apos;" withString:@"'"];
    string = [string stringByReplacingOccurrencesOfString:@"&lt;" withString:@"<"];
    string = [string stringByReplacingOccurrencesOfString:@"&gt;" withString:@">"];
    string = [string stringByReplacingOccurrencesOfString:@"&amp;" withString:@"&"]; // Do this last so that, e.g. @"&amp;lt;" goes to @"&lt;" not @"<"
    
    return string;
}


@end