【问题】
最新刚更新了Win7，包括升级IE9到IE10。
但是却发现，原来在WLW(Windows Live Writer)中正常工作的，我自己写的插件：picturemanager却不工作了：
无法正常的检索WLW中插入的本地图片，并替换对应的图片地址了。
且会导致WLW死掉。
【解决过程】
1.看来还得去专门调试一把。
2.调试发现，原来之前的，正则表达式：
string imgP = @"<A\s+?(?<wholeHref>href=""file:///(?<hrefFullname>(?<hrefPath>.+?WindowsLiveWriter-?\d+/supfiles\w+/).+?(?<pointSuf>\.\w{3,4}))""(?<spaceTarget>\s+?target="".+?"")?).*?>.+?(?<titleStr>title=""?(?<title>[^""]+)""?)\s+(border=.+?\s+)?(?<altStr>alt=""?\k<title>""?)\s+src=""file:///(?<srcFullname>\k<hrefPath>(?<srcFilename>.+?)\k<pointSuf>)"".+?(?<widthHeight>width=(?<width>\d+)\s+?height=(?<height>\d+)).*?></A>";
Regex imgRx = new Regex(imgP, RegexOptions.Singleline | RegexOptions.IgnoreCase);对于如下的html：
<P><A href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/reply-for-use-a-record_thumb.png" target=_blank><IMG title="reply for use a record" style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; BACKGROUND-IMAGE: none; BORDER-BOTTOM-WIDTH: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; DISPLAY: inline; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px" border=0 alt="reply for use a record" src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/reply-for-use-a-record_thumb.png" width=640 height=384></A></P> <P><A href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/use-80-port-to-login-hawk-cpanel2.png"><IMG title="use 80 port to login hawk cpanel" style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; BACKGROUND-IMAGE: none; BORDER-BOTTOM-WIDTH: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; DISPLAY: inline; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px" border=0 alt="use 80 port to login hawk cpanel" src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/use-80-port-to-login-hawk-cpanel_thu.png" width=712 height=699></A></P>
是不匹配的，所以搜不到图片，无法实现地址替换了。
对应的原因是：
之前的情况是：style是在title之前
现在的情况变成了：style变到title之后了
所以之前的正则失效了。
然后看着如此复杂的正则，实在效率很低。
即使此处改正确了，等以后万一再变化一点点，则还是会出错。
所以，想办法换成之前所用的html的解析库：HtmlAgilityPack。
3.后来都写好了完整的代码了：
private void commonProcessFunction()
{
processedContent = curSelectCotent;
//special is not thumb:
//after replace:
//<P><A
//href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter2049324412/supfilesC93787/select-1st-cell-can-show-or-hidden_t.png" target="_blank"><IMG
//style="BACKGROUND-IMAGE: none; BORDER-RIGHT-WIDTH: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; DISPLAY: inline; BORDER-TOP-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; BORDER-LEFT-WIDTH: 0px; PADDING-TOP: 0px"
//title="select 1st cell can show or hidden" border=0
//alt="select 1st cell can show or hidden"
//src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter2049324412/supfilesC93787/select-1st-cell-can-show-or-hidden_t.png"
//width=414 height=1204></A></P>
//<P><A
//href="file:///C:/Users/Administrator/AppData/Local/Temp/WindowsLiveWriter-1642303840/supfiles360FE7B/笑抽了 - 重口味的1楼和具有舍身精神的4楼[2].jpg"><IMG
//style="BACKGROUND-IMAGE: none; BORDER-RIGHT-WIDTH: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; DISPLAY: inline; BORDER-TOP-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; BORDER-LEFT-WIDTH: 0px; PADDING-TOP: 0px"
//title="笑抽了 - 重口味的1楼和具有舍身精神的4楼" border=0 alt="笑抽了 - 重口味的1楼和具有舍身精神的4楼"
//src="file:///C:/Users/Administrator/AppData/Local/Temp/WindowsLiveWriter-1642303840/supfiles360FE7B/笑抽了 - 重口味的1楼和具有舍身精神的4楼_thumb.jpg"
//width=607 height=803></A></P>
//no border:
//<P><A
//href="file:///C:/Users/Administrator/AppData/Local/Temp/WindowsLiveWriter-1642303840/supfiles383DC9A/监控拍下的小偷：大姐，您这一箱啤酒放哪儿了？[2].gif"><IMG
//style="DISPLAY: inline" title=监控拍下的小偷：大姐，您这一箱啤酒放哪儿了？ alt=监控拍下的小偷：大姐，您这一箱啤酒放哪儿了？
//src="file:///C:/Users/Administrator/AppData/Local/Temp/WindowsLiveWriter-1642303840/supfiles383DC9A/监控拍下的小偷：大姐，您这一箱啤酒放哪儿了？_thumb.gif"
//width=234 height=165></A> </P>
//<P><A
//href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/reply-for-use-a-record_thumb.png"
//target=_blank><IMG title="reply for use a record"
//style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; BACKGROUND-IMAGE: none; BORDER-BOTTOM-WIDTH: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; DISPLAY: inline; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px"
//border=0 alt="reply for use a record"
//src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/reply-for-use-a-record_thumb.png"
//width=640 height=384></A></P>
//<P><A
//href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/use-80-port-to-login-hawk-cpanel2.png"><IMG
//title="use 80 port to login hawk cpanel"
//style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; BACKGROUND-IMAGE: none; BORDER-BOTTOM-WIDTH: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; DISPLAY: inline; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px"
//border=0 alt="use 80 port to login hawk cpanel"
//src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfiles22CDBA/use-80-port-to-login-hawk-cpanel_thu.png"
//width=712 height=699></A></P>
HtmlAgilityPack.HtmlDocument htmlDoc = crl.htmlToHtmlDoc(processedContent);
HtmlNode rootNode = htmlDoc.DocumentNode;
HtmlNodeCollection aImgNodeList = rootNode.SelectNodes("//p/a[contains(@href, 'AppData/Local/Temp/WindowsLiveWriter-')]");
if (aImgNodeList != null)
{
foreach (HtmlNode aImgNode in aImgNodeList)
{
string originalAImgHtml = aImgNode.OuterHtml;
string aHrefVal = aImgNode.Attributes["href"].Value;
if (ckbTargetBlank.Checked)
{
//always set to target="_blank"
aImgNode.SetAttributeValue("target", "_blank");
}
HtmlNode imgNode = aImgNode.SelectSingleNode("./img");
if (imgNode != null)
{
string imgSrcVal = imgNode.Attributes["src"].Value;
//the processed and uploaded picture, also here contains Local/Temp/WindowsLiveWriter-
//<P><A
//href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfilesC19F10/now-the-service-status-is-active_thu%5B1%5D.png"
//target=_blank><IMG title="now the service status is active_thumb"
//style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 0px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px"
//border=0 alt="now the service status is active_thumb"
//src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfilesC19F10/now-the-service-status-is-active_thu%5B1%5D.png"
//width=640 height=452></A></P>
//so need check whether href is same with src
if (aHrefVal.Equals(imgSrcVal, StringComparison.OrdinalIgnoreCase))
{
//already processed, not handle
}
else
{
if (ckbReplaceHrefWithSr.Checked)
{
aImgNode.SetAttributeValue("href", imgSrcVal);
}
}
if (ckbAutoScale.Checked)
{
string realSrcFullname;
string srcFilename;
//string decodedSrcFilename; //used for translation
int srcFileWidth, srcFileHeight;
//int maxWidth = 640, maxHeight = 480;
int maxWidth = 640;
int newWidth, newHeight;
string srcFullname = imgSrcVal;
srcFilename = crl.extractFilenameFromUrl(imgSrcVal);
//check file exist or not, and find out the real full filename and filename
if (!System.IO.File.Exists(srcFullname))
{
realSrcFullname = HttpUtility.UrlDecode(imgSrcVal);
//decodedSrcFilename = HttpUtility.UrlDecode(srcFilename);
}
else
{
realSrcFullname = srcFullname;
//decodedSrcFilename = srcFilename;
}
//remove file:///, otherwise will Image.FromFile will fail !!!
string noFilePrefixRealSrcFullname = realSrcFullname;
if (realSrcFullname.StartsWith("file:///"))
{
noFilePrefixRealSrcFullname = realSrcFullname.Substring(8);
}
Image img = Image.FromFile(noFilePrefixRealSrcFullname); //"C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfilesECB445/use-80-port-to-login-hawk-cpanel_thu.png"
srcFileWidth = img.Width;
srcFileHeight = img.Height;
//here only scale according to width
if (srcFileWidth > maxWidth)
{
newWidth = maxWidth;
newHeight = newWidth * srcFileHeight / srcFileWidth;
imgNode.SetAttributeValue("width", newWidth.ToString());
imgNode.SetAttributeValue("height", newHeight.ToString());
}
//replace img html
//originalAImgHtml = originalAImgHtml.Replace(imgNode.OuterHtml, imgNode.WriteTo());
}
//do finnal replace
string newAImgHtml = aImgNode.WriteTo();
processedContent = processedContent.Replace(originalAImgHtml, newAImgHtml);
}
else
{
//something wrong
}
}
}
}结果却是：
对于originalAImgHtml，实际上和本身的html不同：
即原先的html是：
<A href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfilesFFB3D9/use-80-port-to-login-hawk-cpanel2.png"><IMG title="use 80 port to login hawk cpanel" style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; BACKGROUND-IMAGE: none; BORDER-BOTTOM-WIDTH: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; DISPLAY: inline; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px" border=0 alt="use 80 port to login hawk cpanel" src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfilesFFB3D9/use-80-port-to-login-hawk-cpanel_thu.png" width=712 height=699></A>
而originalAImgHtml，即aImgNode.OuterHtml却是，处理后的：
<a href="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfilesFFB3D9/use-80-port-to-login-hawk-cpanel_thu.png" target="_blank"><img title="use 80 port to login hawk cpanel" style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; BACKGROUND-IMAGE: none; BORDER-BOTTOM-WIDTH: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; DISPLAY: inline; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px" border="0" alt="use 80 port to login hawk cpanel" src="file:///C:/Users/CLi/AppData/Local/Temp/WindowsLiveWriter-1737927945/supfilesFFB3D9/use-80-port-to-login-hawk-cpanel_thu.png" width="640" height="628"></a>
很明显，改变了：
标签的大小写
把一些属性，比如width和height的值，都加上了对应的引号
如此，导致：
虽然我们可以修改标签的各个属性值，且可以获得修改后的内容
但是由于最原始的originalAImgHtml，根本就不存在，所以
processedContent = processedContent.Replace(originalAImgHtml, newAImgHtml);
根本没有生效，所以导致我们此处的替换无效。
即，浪费了半天功夫，根本没有实现替换功能。
4.所以，看来还是只能换回原先的，用正则处理的了。
最后，为了匹配新的，style在boarder之后的，只是把：
| string imgP = @"<A\s+?(?<wholeHref>href=""file:///(?<hrefFullname>(?<hrefPath>.+?WindowsLiveWriter-?\d+/supfiles\w+/).+?(?<pointSuf>\.\w{3,4}))""(?<spaceTarget>\s+?target="".+?"")?).*?>.+?(?<titleStr>title=""?(?<title>[^""]+)""?)\s+(border=.+?\s+)?(?<altStr>alt=""?\k<title>""?)\s+src=""file:///(?<srcFullname>\k<hrefPath>(?<srcFilename>.+?)\k<pointSuf>)"".+?(?<widthHeight>width=(?<width>\d+)\s+?height=(?<height>\d+)).*?></A>"; |
换为：
| string imgP = @"<A\s+?(?<wholeHref>href=""file:///(?<hrefFullname>(?<hrefPath>.+?WindowsLiveWriter-?\d+/supfiles\w+/).+?(?<pointSuf>\.\w{3,4}))""(?<spaceTarget>\s+?target="".+?"")?).*?>.+?(?<titleStr>title=""?(?<title>[^""]+)""?)\s+.+?(border=.+?\s+)?(?<altStr>alt=""?\k<title>""?)\s+src=""file:///(?<srcFullname>\k<hrefPath>(?<srcFilename>.+?)\k<pointSuf>)"".+?(?<widthHeight>width=(?<width>\d+)\s+?height=(?<height>\d+)).*?></A>"; |
即可。
至此，目前至少还是可以继续使用了。
【总结】
一次普通的Win7的update，竟然会影响到到WLW，真是无语了。。。