[新闻] dxpcom v0.1 发布
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h_rain
2007-04-26
哦.
我这现在测试了一下,好像有问题.
import mozilla.xpcom.nsXPCOM;
import mozilla.xpcom.nsIDOMParser;
import mozilla.xpcom.nsIComponentManager;
import mozilla.xpcom.nsIDOMDocument;
import mozilla.xpcom.nsIDOMHTMLDocument;
import mozilla.xpcom.nsISupports;
import mozilla.dxpcom.StringAPI;
import mozilla.dxpcom.QueryInterface;
import std.string;
import std.stdio;
void main(char[][] args)
{
nsIComponentManager componentManager;
nsresult result;
result = NS_InitXPCOM2(null, null, null);
result = NS_GetComponentManager(&componentManager);
nsIDOMParser DOM = null;
result = componentManager.CreateInstanceByContractID(
"@mozilla.org/xmlextras/domparser;1",
null,
&nsIDOMParser.IID,
cast(void**)&DOM
);
writefln("Create nsIFile instance, result: 0x%08x", result);
//AString str = new AString(r"G:\rain\tmp\t.html"w);
//PRUnichar Str[]=r"G:\rain\tmp\t.html"w;
PRUnichar Str[]=r"<html><head><title>Interface Reference - nsIDOMHTMLDocument</title></head><body><al>test</al></body></html>"w;
//result=WebNav.LoadURI(cast(PRUnichar*)&Str,null,nsIWebNavigation.LOAD_FLAGS_NONE,0);
nsIDOMDocument doc;
AString tStr=new AString();
result=DOM.ParseFromString(cast(PRUnichar*)Str,"application/xhtml+xml",&doc);
nsIDOMNodeList NodeList;
// nsIDOMHTMLDocument HTMLDoc;
// result=doc.QueryInterface(&nsIDOMHTMLDocument.IID,cast(void**)&HTMLDoc);
// result=HTMLDoc.GetTitle(cast(nsAString*)tStr);
AString TagName = new AString("title"w);
result=doc.GetElementsByTagName(cast(nsAString*)TagName,&NodeList);
nsIDOMNode Node;
uint Len=0;
result=NodeList.GetLength(&Len);
result=NodeList.Item(0,&Node);
result=Node.GetNodeName(cast(nsAString*)tStr);
wchar wStr[]=tStr.GetString();
Len=wStr.length;
// result = ifile.InitWithPath(cast(nsAString*)str);
writefln("str: %s", wStr);
result = NS_ShutdownXPCOM(null);
writefln(result);
}
得到的wStr值好像被截短了:(
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qiezi
2007-04-26
怎么我在windows上编译的运行有问题呢？已经在xulrunner文件夹下了。你贴代码时写上code="cpp"吧，这样太难看了亚。
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h_rain
2007-04-26
感觉问题在这:
wchar[] GetString()
{
wchar* buffer = null;
PRBool terminated;
uint len = NS_StringGetData(cast(nsAString*)&str, &buffer, &terminated);
if (len > 0 && terminated)
len -= 1;
wchar[] result = buffer[0 .. len].dup;
return result;
}
len有问题. |
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qiezi
2007-04-26
有可能，你改一下测试看看吧，我都忘了这代码是不是我写了的。。。咋看着这么陌生呢。
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h_rain
2007-04-26
这个代码是用test.d改的,现在很乱~
呵呵,这里的code我不会用:( |
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qiezi
2007-04-26
h_rain 写道 这个代码是用test.d改的,现在很乱~
呵呵,这里的code我不会用:( code="cpp"引号不能省。 怎么我在windows上这么不顺呢，问题多。。 |
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h_rain
2007-04-26
wchar[] GetString()
{
wchar* buffer = null;
PRBool terminated;
uint len = NS_StringGetData(cast(nsAString*)&str, &buffer, &terminated);
if (len > 0 && terminated)
len -= 1;
wchar[] result = buffer[0 .. len+1].dup;
return result;
}
这样就好了:) |
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qiezi
2007-04-26
不应该亚，前面判断有终止符\0时把长度减一，我怀疑会不会影响其它代码。
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h_rain
2007-04-26
我也不知道是怎么回事,反正这么就能得到正确的结果了,不然总是少一个字符.
我这提交太慢了,你来改吧. |
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qiezi
2007-04-26
噢，搞明白了：
/** * NS_StringGetData * * This function returns a const character pointer to the string's internal * buffer, the length of the string, and a boolean value indicating whether * or not the buffer is null-terminated. * * @param aStr abstract string reference * @param aData out param that will hold the address of aStr's * internal buffer * @param aTerminated if non-null, this out param will be set to indicate * whether or not aStr's internal buffer is null- * terminated * @return length of aStr's internal buffer * * @status FROZEN */ 返回的长度就是字符串的长度，无论terminated是true还是false，所以去掉判断就行了，改成这样：
wchar[] GetString()
{
wchar* buffer = null;
PRBool terminated;
uint len = NS_StringGetData(cast(nsAString*)&str, &buffer, &terminated);
wchar[] result = buffer[0 .. len].dup;
return result;
}
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