谁能告诉我为什么我的 XML 编写器不编写属性? [英] Can anyone tell me why my XML writer is not writing attributes?
本文介绍了谁能告诉我为什么我的 XML 编写器不编写属性?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在编写一个解析工具来帮助我在为它制作 .net 绑定之前清理一个大型 VC++ 项目.
I am writing a parsing tool to help me clean up a large VC++ project before I make .net bindings for it.
我正在使用 XML 编写器读取 xml 文件并将每个元素写入新文件.如果找到具有特定名称的元素，则它会执行一些代码并将输出值写入元素值.
I am using an XML writer to read an xml file and write out each element to a new file. If an element with a certain name is found, then it executes some code and writes an output value into the elements value.
到目前为止，它几乎可以正常工作，除了一件事:它没有复制属性.谁能告诉我为什么会这样?
So far it is almost working, except for one thing: It is not copying the attributes. Can anyone tell me why this is happening?
这是应该复制/修改的示例(包括属性):
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{57900E99-A405-49F4-83B2-0254117D041B}</ProjectGuid>
<Keyword>Win32Proj</Keyword>
<RootNamespace>libproj</RootNamespace>
</PropertyGroup>
这是我得到的输出(无属性):
<?xml version="1.0" encoding="utf-8"?>
<Project>
<ItemGroup>
<ProjectConfiguration>
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration>
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup>
<ProjectGuid>{57900E99-A405-49F4-83B2-0254117D041B}</ProjectGuid>
<Keyword>Win32Proj</Keyword>
<RootNamespace>libproj</RootNamespace>
这是我目前的代码.我已经尝试了所有可以想出的方法来编写属性.
string baseDir = (textBox2.Text + "\\" + safeFileName);
string vcName = Path.GetFileName(textBox1.Text);
string vcProj = Path.Combine(baseDir, vcName);
using (XmlReader reader = XmlReader.Create(textBox1.Text))
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
settings.ConformanceLevel = ConformanceLevel.Fragment;
settings.Indent = true;
settings.CloseOutput = false;
using (XmlWriter writer = XmlWriter.Create(vcProj, settings))
{
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
if (reader.Name == "ClInclude")
{
string include = reader.GetAttribute("Include");
string dirPath = Path.GetDirectoryName(textBox1.Text);
Directory.SetCurrentDirectory(dirPath);
string fullPath = Path.GetFullPath(include);
//string dirPath = Path.GetDirectoryName(fullPath);
copyFile(fullPath, 3);
string filename = Path.GetFileName(fullPath);
writer.WriteStartElement(reader.Name);
writer.WriteAttributeString("Include", "include/" + filename);
writer.WriteEndElement();
}
else if (reader.Name == "ClCompile" && reader.HasAttributes)
{
string include = reader.GetAttribute("Include");
string dirPath = Path.GetDirectoryName(textBox1.Text);
Directory.SetCurrentDirectory(dirPath);
string fullPath = Path.GetFullPath(include);
copyFile(fullPath, 2);
string filename = Path.GetFileName(fullPath);
writer.WriteStartElement(reader.Name);
writer.WriteAttributeString("Include", "src/" + filename);
writer.WriteEndElement();
}
else
{
writer.WriteStartElement(reader.Name);
}
break;
case XmlNodeType.Text:
writer.WriteString(reader.Value);
break;
case XmlNodeType.XmlDeclaration:
case XmlNodeType.ProcessingInstruction:
writer.WriteProcessingInstruction(reader.Name, reader.Value);
break;
case XmlNodeType.Comment:
writer.WriteComment(reader.Value);
break;
case XmlNodeType.Attribute:
writer.WriteAttributes(reader, true);
break;
case XmlNodeType.EntityReference:
writer.WriteEntityRef(reader.Value);
break;
case XmlNodeType.EndElement:
writer.WriteFullEndElement();
break;
}
}
}
}
推荐答案
在 Soonts 发表评论后，我最终对命名空间进行了深入研究，并意识到为什么我的一个尝试没有奏效.我必须事先指定命名空间，而不是让作者将其复制到阅读器 XML 文件中.以下是我解决问题的方法:
I ended up looking a bit ore into namespaces after Soonts comment, and realized why one of my attempts was not working. I had to specify the namespace beforehand, instead of allowing the writer to copy it into the reader XML file. Here is how I solved my issue:
string baseDir = (textBox2.Text + "\\" + safeFileName);
string vcName = Path.GetFileName(textBox1.Text);
string vcProj = Path.Combine(baseDir, vcName);
using (XmlReader reader = XmlReader.Create(textBox1.Text))
{
XmlWriterSettings settings = new XmlWriterSettings();
//settings.OmitXmlDeclaration = true;
settings.ConformanceLevel = ConformanceLevel.Auto;
settings.Indent = true;
settings.CloseOutput = false;
string nameSpace = "http://schemas.microsoft.com/developer/msbuild/2003";
using (XmlWriter writer = XmlWriter.Create(vcProj, settings))
{
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
if (reader.Name == "ClInclude")
{
string include = reader.GetAttribute("Include");
string dirPath = Path.GetDirectoryName(textBox1.Text);
Directory.SetCurrentDirectory(dirPath);
string fullPath = Path.GetFullPath(include);
//string dirPath = Path.GetDirectoryName(fullPath);
//MessageBox.Show("Path: " + dirPath + Environment.NewLine + "Filename: " + filename);
copyFile(fullPath, 3);
string filename = Path.GetFileName(fullPath);
writer.WriteStartElement(reader.Name, nameSpace);
writer.WriteAttributeString("Include", "include/" + filename);
writer.WriteEndElement();
}
else if (reader.Name == "ClCompile" && reader.HasAttributes)
{
string include = reader.GetAttribute("Include");
string dirPath = Path.GetDirectoryName(textBox1.Text);
Directory.SetCurrentDirectory(dirPath);
string fullPath = Path.GetFullPath(include);
//string dirPath = Path.GetDirectoryName(fullPath);
//MessageBox.Show("Path: " + dirPath + Environment.NewLine + "Filename: " + filename);
copyFile(fullPath, 2);
string filename = Path.GetFileName(fullPath);
writer.WriteStartElement(reader.Name, nameSpace);
writer.WriteAttributeString("Include", "src/" + filename);
writer.WriteEndElement();
}
else
{
writer.WriteStartElement(reader.Name, nameSpace);
writer.WriteAttributes(reader, true);
}
break;
case XmlNodeType.Text:
writer.WriteString(reader.Value);
break;
case XmlNodeType.XmlDeclaration:
case XmlNodeType.ProcessingInstruction:
writer.WriteProcessingInstruction(reader.Name, reader.Value);
break;
case XmlNodeType.Comment:
writer.WriteComment(reader.Value);
break;
case XmlNodeType.Attribute:
writer.WriteAttributes(reader, true);
break;
case XmlNodeType.EntityReference:
writer.WriteEntityRef(reader.Value);
break;
case XmlNodeType.EndElement:
writer.WriteFullEndElement();
break;
}
}
}
}
这篇关于谁能告诉我为什么我的 XML 编写器不编写属性?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
