private static bool RemoveMarqueeFromStartOfText(ref string text, int marqueeStartIndex,
int htmlStartIndex, bool returnEmptyOnError)
{
const string endMarqueeText = "</marquee>";
const string endCenterText = "</center>";
const string endHtmlText = "</html>";
const string endBoldText = "</b>";
// Find </marquee>, </html>, </center> or </b> whichever comes first.
var endMarquee = CultureInfo.CurrentCulture.CompareInfo.IndexOf(text, endMarqueeText, marqueeStartIndex, CompareOptions.IgnoreCase);
if (endMarquee < marqueeStartIndex)
{
endMarquee = -1;
}
var endHtml = FindEndOfAny(text, htmlStartIndex, endHtmlText, endCenterText, endBoldText);
if (endHtml == -1)
{
if (endMarquee != -1)
{
// No </html>, so at least remove up to </marquee>.
endHtml = endMarquee + endMarqueeText.Length;
}
else
{
if (returnEmptyOnError)
{
text = "";
return(true);
}
throw new ApplicationException("Failed to find the end of the marquee. Text: " + text);
}
}
if (endHtml > text.Length - 100)
{
text = ""; // Looks like the whole thing is a marquee!
return(false);
}
var endText = text.Substring(endHtml).Trim();
if (htmlStartIndex == 0)
{
text = endText;
}
else
{
text = HtmlUtil.CloseHtmlTags(text.Substring(0, htmlStartIndex).Trim()) + Environment.NewLine + endText;
}
return(true);
}
string IResourceHighlighter.SummarizeContent(string text, bool htmlEncodeOutput)
{
if (string.IsNullOrEmpty(text) || _contentQuery == null)
{
return(string.Empty);
}
var highlightedString = Summarize(_contentQuery, text, htmlEncodeOutput);
if (!string.IsNullOrEmpty(highlightedString) && highlightedString.Contains(_configuration.StartTag))
{
//some highlighting occured - return this string
return(HtmlUtil.CloseHtmlTags(highlightedString));
}
return(string.Empty);
}
public override bool GetValue(object currentValue, out object value)
{
value = null;
if (!(currentValue is string || currentValue is string[]))
{
return(false);
}
var s = currentValue as string;
if (s != null)
{
if (s.Length == 0)
{
return(false);
}
// Close any open HTML tags.
value = HtmlUtil.CloseHtmlTags(s);
return(true);
}
var a = currentValue as string[];
if (a.Length == 0)
{
return(false);
}
var v = new string[a.Length];
for (var index = 0; index < a.Length; ++index)
{
v[index] = HtmlUtil.CloseHtmlTags(a[index]);
}
value = v;
return(true);
}
public void TestCloseHtmlTags()
{
// No HTML.
Assert.AreEqual(null, HtmlUtil.CloseHtmlTags(null));
Assert.AreEqual("", HtmlUtil.CloseHtmlTags(""));
Assert.AreEqual("no html", HtmlUtil.CloseHtmlTags("no html"));
// Simple HTML.
Assert.AreEqual("<html><valid>all closed</valid></html>",
HtmlUtil.CloseHtmlTags("<html><valid>all closed</valid></html>"));
Assert.AreEqual("<html><valid>all closed</valid></html",
HtmlUtil.CloseHtmlTags("<html><valid>all closed</valid></html"));
Assert.AreEqual("<html><center>some text</center></html>",
HtmlUtil.CloseHtmlTags("<html><center>some text"));
Assert.AreEqual("<html><center>some text</center></html>",
HtmlUtil.CloseHtmlTags("<html><center>some text</center>"));
Assert.AreEqual("<html><center>some text<center /><br></center></html>",
HtmlUtil.CloseHtmlTags("<html><center>some text<center /><br></center>"));
// Quotes.
Assert.AreEqual("<html><center>some text<a name='blah' /><br></center></html>",
HtmlUtil.CloseHtmlTags("<html><center>some text<a name='blah' /><br></center>"));
Assert.AreEqual("some text <and>Some</AND> <html>text<SPAN class='blah'>more text</SPAN></html>",
HtmlUtil.CloseHtmlTags("some text <and>Some</AND> <html>text<SPAN class='blah'>more text"));
Assert.AreEqual("<html><a href=\"http://test/url\">link</a></html>",
HtmlUtil.CloseHtmlTags("<html><a href=\"http://test/url\">link"));
Assert.AreEqual("<html><a href='http://test\"url\'>link</a></html>",
HtmlUtil.CloseHtmlTags("<html><a href='http://test\"url\'>link"));
// Tags that don't need to be closed.
Assert.AreEqual("<ul><li>one<li>two<li>three</ul>",
HtmlUtil.CloseHtmlTags("<ul><li>one<li>two<li>three"));
Assert.AreEqual("<hr><span>some text</span>",
HtmlUtil.CloseHtmlTags("<hr><span>some text"));
}