c++ 漂亮的打印与libxml2？

of1yzvn4 于 2023-06-07 发布在其他

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使用libxml2。我可以使用xmlSaveFormatFileEnc()将XML打印到一个文件中。但是，有没有一种方法可以在文本字符串或流中做同样的事情呢？
我希望避免将XML写入文件并将其读回，以获得XML的漂亮打印版本。
为了记录在案，我现在做的是：

xmlInitParser();
xmlKeepBlanksDefault(0);
xmlLineNumbersDefault(1);
xmlThrDefIndentTreeOutput(1);
xmlThrDefTreeIndentString("    ");

std::string content = "....."; // do something here to get the XML
xmlDoc * doc = xmlParseDoc((xmlChar*)content.c_str());

xmlSaveFormatFileEnc("output.xml", doc, "utf-8", 1); // pretty print

c++

来源：https://stackoverflow.com/questions/56355002/pretty-print-with-libxml2

2条答案

按热度按时间

qyuhtwio1#

从here窃取：

xmlBufferPtr buf;
/* Create a new XML buffer, to which the XML document will be
 * written */
buf = xmlBufferCreate();
if (buf == NULL) {
    std::cerr << "testXmlwriterMemory: Error creating the xml buffer" << std::endl;
    return;
}

/* Create a new XmlWriter for memory, with no compression.
 * Remark: there is no compression for this kind of xmlTextWriter */
writer = xmlNewTextWriterMemory(buf, 0);
if (writer == NULL) {
    std::cerr << "testXmlwriterMemory: Error creating the xml writer" << std::endl;
    return;
}

然后，在写入缓冲区之后：

std::cout << buf->content << std::endl

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vmdwslir2#

只需使用xmlSaveFormatFileTo（）而不是xmlSaveFormatFileEnc（）https://gnome.pages.gitlab.gnome.org/libxml2/devhelp/libxml2-tree.html#xmlSaveFormatFileTo

mlBuffer *buffer = xmlBufferCreate();
xmlOutputBuffer *outputBuffer = xmlOutputBufferCreateBuffer(buffer, NULL);
xmlSaveFormatFileTo(outputBuffer, doc, "utf-8", 1);
/* pretty print output in buffer->content */
xmlBufferFree(buffer);
/* outputBuffer has been closed in xmlSaveFormatFileTo */

赞(0）回复(0）举报 2023-06-07

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c++ 漂亮的打印与libxml2？

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