SimpleJSon(简称 sJSON)是一个只有一个 hpp 文件的轻量级 C JSON 库,使用方法优雅,支持 C11 及以上的 C 标准。
下面是一个使用 sJSON 解析 JSON 的实例:
#include "sJson.hpp"
int main()
{
sJSONParser Parser(R"({
"sites": [
{ "name":"codeforce" , "url":"www.codeforces.com", "rank":3 },
{ "name":"google" , "url":"www.google.com", "rank":2 },
{ "name":"github" , "url":"www.github.com", "rank":1 }
]
})");
// 解析 JSON
auto Root = Parser.Parse();
// 序列化 JSON 对象
printf("JSON in format : %s\n", sJSONWriter::WriteJSON(Root).c_str());
printf("JSON in not format : %s\n\n", sJSONWriter::WriteJSON(Root, false).c_str());
// 读取 JSON 文件
for (auto Object = Root["sites"].ArrayBegin(); Object != Root["sites"].ArrayEnd(); Object)
{
auto ObjectExpand = sJSONElementFinder((*Object)->To<sJSONObject*>());
for (auto Instance : ObjectExpand)
{
printf("<%s, ", Instance.first.c_str());
if (sJSONString::Equal(**Instance.second)) {
printf("%s> ", (**Instance.second->To<sJSONString*>()).c_str());
}
if (sJSONInt::Equal(**Instance.second)) {
printf("%d> ", **Instance.second->To<sJSONInt*>());
}
}
printf("\n");
}
return 0;
}
运行上面的代码,最终效果如下:
JSON in format : {
"sites":[
{
"name":"codeforce",
"rank":3,
"url":"www.codeforces.com"
},
{
"name":"google",
"rank":2,
"url":"www.google.com"
},
{
"name":"github",
"rank":1,
"url":"www.github.com"
}
]
}
JSON in not format : {"sites":[{"name":"codeforce","rank":3,"url":"www.codeforces.com"},{"name":"google","rank":2,"url":"www.google.com"},{"name":"github","rank":1,"url":"www.github.com"}]}
<name, codeforce> <rank, 3> <url, www.codeforces.com>
<name, google> <rank, 2> <url, www.google.com>
<name, github> <rank, 1> <url, www.github.com>