Comments (4)
虽然是一個 char* ,但不单是 null-terminated string。可以用 lept_get_string_length()
获取真实長度。
可用这两个数据调用此 std::string
constructor:
basic_string::basic_string( const CharT* s,
size_type count,
const Allocator& alloc = Allocator() );
JSON 语法是接受 \u0000
的,转成 UTF-8 就是 '\0'
。
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在请问一下叶老师,我自己写的时候使用的std::string
,这样和我们教程中用char*实现比较起来有什么优劣势呢?使用std::string
简化了一些代码,但是效率会不会更低一些呢?
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这个问题不好答。要看你用了 std::string
中什么函数。最理想的情况下性能和 C 一样。
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如果用 c string 可以试试编码成 C0 80
.
单独的代理项也可以「强行」编码成三个字节。
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Related Issues (20)
- C++ 版本
- Tutorial3中关于首次调用lept_free()函数的问题
- tutorial2中非法的情况是不是没判断完全 HOT 5
- 关于tutorial02的一张图 HOT 1
- 关于生成字符串的问题
- 关于生成器对\u字符的处理
- 不是很理解判断字符tutorial02中连续判断数字的代码 (p++; ISDIGIT(*p); p++); HOT 2
- 关于Tutorial04中将Unicode字符转换为UTF-8存储的lept_encode_utf8的写法 HOT 1
- about tutorial07 function—lept_stringify_string. why not add ' \" ' because it's the begin or end mark for a string HOT 3
- 毛遂自荐一下 HOT 1
- 关于使用宏而不是内联函数的问题
- 关于tutorial2对含有前导零数字处理的问题 HOT 1
- 指数解析出现问题, HOT 2
- C++ 版本(含详细注解~)
- https://github.com/Tencent/rapidjson
- 解析字符串时,代理对不是针对 utf-16 才有的吗,这里是解析utf-8 的编解码,也需要处理代理对? HOT 2
- 这里的为啥右移 HOT 1
- 关于第九章
- 'errno.h' 不是ANSI C的头文件 HOT 1
- 关于 tutorial2 中的这个 “0123”这个字符串的解析
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