1
我需要幫助將子ptree節點添加到已有 包含值的現有ptree節點。我現在面臨的問題是,我結束了一個 current_module
嵌套我試圖做到這一點是如下現有current_module
boost ptree add_child創建不需要的嵌套元素
方式中:
std::vector<moduleStatus> moduleStatii = {
{"mod1", "file1.TXT", 0x0002},
{"mod2", "file2.TXT", 0x0003}
};
ptree pt;
pt.add("status.session_id", sessionID);
pt.put("status.start_time", timeStringUTC);
pt.put("status.load_file", loadFile);
pt.put("status.upload.estimated_loadtime", 1983);
pt.put("status.upload.time_remaining", 1613); // not finished - non-zero
// for each over the modules...
for (const auto& next : moduleStatii) {
ptree moduleStatus;
moduleStatus.put("current_module", next.moduleName);
moduleStatus.put("current_module.current_file", next.currentFile);
moduleStatus.put("current_module.status_code", next.statusCode);
pt.add_child("status.upload.current_module", moduleStatus);
}
// this is overall status - operation in progress 0x0002
pt.put("status.status_code", ss.str());
write_xml(std::cout, pt, settings);
不幸的是,輸出如下:
<?xml version="1.0" encoding="utf-8"?>
<status>
<session_id>123</session_id>
<start_time>Sat Sep 26 20:12:46 2015</start_time>
<load_file>/tmp/filename.zip</load_file>
<upload>
<estimated_loadtime>1983</estimated_loadtime>
<time_remaining>0</time_remaining>
<current_module>
mod1
<current_file>file1.TXT</current_file>
<status_code>3</status_code>
</current_module>
<current_module>
mod2
<current_file>file2.TXT</current_file>
<status_code>3</status_code>
</current_module>
</upload>
<status_code>0x0002</status_code>
</status>
我活demo顯示我的電流輸出如下:
<?xml version="1.0" encoding="utf-8"?>
<status>
<session_id>123</session_id>
<start_time>Sat Sep 26 20:23:38 2015</start_time>
<load_file>/tmp/filename.zip</load_file>
<upload>
<estimated_loadtime>1983</estimated_loadtime>
<time_remaining>1613</time_remaining>
<current_module>
<current_module>
mod1
<current_file>file1.TXT</current_file>
<status_code>2</status_code>
</current_module>
</current_module>
<current_module>
<current_module>
mod2
<current_file>file2.TXT</current_file>
<status_code>3</status_code>
</current_module>
</current_module>
</upload>
<status_code>0x0002</status_code>
</status>
不幸的是它包含了一個額外的嵌套層次,我似乎無法避免使用 。關鍵要注意的是,存在與 </current_module>
相關的值 - 在示例mod1
和mod2
中。