public static string SubHTMLToRaw(string html, int length)
{
if (html == null)
{
return("空白文章，没有笔记内容：SubHTMLToRaw=>null Exception");
}
if (string.IsNullOrEmpty(html))
{
return("空白文章，没有笔记内容：SubHTMLToRaw=>empty Exception");
}
//todo:需要完成函数MyHtmlHelper.SubStringHTMLToRaw
HtmlToTextHelper convert = new HtmlToTextHelper();
string text = convert.Convert(html);
if (length < 0)
{
length = 200;
}
if (length > text.Length)
{
length = text.Length;
}
string result = text.Substring(0, length);
return(result);
}
public static string SubMarkDownToRaw(string markdown, int length)
{
if (string.IsNullOrEmpty(markdown))
{
return("SubMarkDownToRaw=>null Exception");
}
//todo:需要完成函数MyHtmlHelper.SubStringHTMLToRaw
string html = "";
HtmlToTextHelper convert = new HtmlToTextHelper();
using (var reader = new StringReader(markdown))
{
using (var writer = new StringWriter())
{
CommonMark.CommonMarkConverter.Convert(reader, writer);
//writer.ToString()即为转换好的html
html = writer.ToString();
}
}
string text = convert.Convert(html);
if (length < 0)
{
length = 200;
}
if (length > text.Length)
{
length = text.Length;
}
string result = text.Substring(0, length);
return(result);
}
