c++ - 是否允许在 JSON 文件中对 boost read_json 进行注释？

Question

这是我一直用来阅读boost::property_tree::json_parser::read_json的json文件的同伦

它始终有效。

/**********************************************/
/*                 the title                  */
/**********************************************/



{
    "garden": {
        "side1": {
            "treeA1": "apple",
            "treeA2": "orange",
            "treeA3": "banana",
        },
        "side2": {
            "treeB1": "orange",
            "treeB2": "palm",
            "treeB3": "cherry",
        }
    },
    "house": ""
}

我将我的 boost 版本从 1.58.0 升级到 1.65.0，现在我收到了因为评论的异常。当我删除评论时，一切都很好。

是我哪里弄错了还是新版boost的bug？

Answer 1

评论不是 JSON。

旧的解析器确实有它们，但没有正确支持 unicode。

这是 the release notes for Boost 1.59.0 中的消息:

Property Tree:

• A new JSON parser with full Unicode support.
• Breakingchange: The new parser does not support comments or stringconcatenation in JSON files. These features were non-standardextensions of the old parser but their removal could break code whichwas relying on them.