protected override void OnText(Text text)
{
if (preserveLinebreaksDepth == 0)
{
string cleanText = newLine.Replace(text.ToString(), " ");
if (cleanText.Length != text.Length)
text = new Text(cleanText, 0, cleanText.Length);
}
base.OnText(text);
}
/// <summary>
/// Truncate text. maxCost is the cost available for the
/// string you need to return.
///
/// The default implementation uses CharCount() to calculate
/// where to split, then attempts to split at a space if
/// possible.
/// </summary>
public virtual string TruncateText(Text el, int maxCost)
{
if (maxCost == 0)
return string.Empty;
string str = el.ToString();
// normalizes maxCost to a max char length
int cost = 0;
int max = -1;
for (int i = 0; i < str.Length; i++)
{
if (cost >= maxCost)
{
max = i;
break;
}
cost += CharCost(str[i]);
}
if (max == -1)
return str; // never hit the max
// avoid splitting up HTML entities
string trimmedAtWords = StringHelper.RestrictLengthAtWords(str, max);
if (ElementCost(new Text(trimmedAtWords, 0, trimmedAtWords.Length)) <= maxCost)
{
// It is possible for RestrictLengthAtWords to return
// strings that are longer than desired (if there are
// no spaces). Only if that is not the case, use the
// result.
return trimmedAtWords;
}
// find last '&' before max
string result = null;
int lastAmp = str.LastIndexOf('&', max - 1, max);
if (lastAmp >= 0)
{
Regex regex = new Regex(@"&[^\s&;]{1,20};");
Match match = regex.Match(str, lastAmp);
if (match.Success && match.Index + match.Length > max)
result = str.Substring(0, match.Index);
}
if (result == null)
result = str.Substring(0, max);
return result;
}
protected override void OnText(Text text)
{
if (_nextTextIsTitleText)
{
_title = HttpUtility.HtmlDecode(text.ToString());
_nextTextIsTitleText = false;
}
if (_collectingForTag != null)
_collectingForTag.Name = _collectingForTag.Name + text.RawText;
base.OnText(text);
}
protected override void OnText(Text text)
{
Emit(text.ToString());
}
protected override void OnText(Text text)
{
if (text == null || _scriptDepth > 0)
return;
Emit(text.ToString());
base.OnText(text);
}