Question

我正在尝试使用ISO-8859-1中的libxml2编写XML文件。但是从文档中看来，对于我创建的每个文本节点，我都必须转换为UTF-8，这是libxml的内部编码。然后，当调用xmlSaveFormatFileEnc（）时，libxml将转换为目标编码并将encoding属性添加到文档中。

这个假设是否正确？现在我的代码大致如下：

xmlNode *root_element = NULL, *node4 = NULL; xmlDoc *doc = NULL;



doc = xmlNewDoc(BAD_CAST XML_DEFAULT_VERSION);
root_element = xmlNewDocNode(doc, NULL, BAD_CAST("root"),
                    NULL);
char * input_str = getLatin1Data();
isolat1ToUTF8(utf8_str, &file_size, input_str, &inlen);

node4 = xmlNewCDataBlock(doc, BAD_CAST list_content, xmlStrlen(BAD_CAST utf8_str));

xmlAddChild(root_element, node4);
xmlSaveFormatFileEnc("test_file.xml", doc, "UTF-8", 1);
xmlFreeDoc(doc);

doc = xmlNewDoc(BAD_CAST XML_DEFAULT_VERSION); root_element = xmlNewDocNode(doc, NULL, BAD_CAST("root"), NULL); char * input_str = getLatin1Data(); isolat1ToUTF8(utf8_str, &file_size, input_str, &inlen); node4 = xmlNewCDataBlock(doc, BAD_CAST list_content, xmlStrlen(BAD_CAST utf8_str)); xmlAddChild(root_element, node4); xmlSaveFormatFileEnc("test_file.xml", doc, "UTF-8", 1); xmlFreeDoc(doc);

Answer 1

你的假设是对的。如果需要xmlChar，例如xmlNewCDataBlock，xmlNewText，则始终为UTF-8：

来自include/libxml/xmlstring.h（libxml 2.8.0）：

/**
 * xmlChar:
 *
 * This is a basic byte in an UTF-8 encoded string.
 * It's unsigned allowing to pinpoint case where char * are assigned
 * to xmlChar * (possibly making serialization back impossible).
 */

LibXML内部和输出编码

1 个答案: