/// <summary>
/// Create a text with Capital Drop
/// </summary>
/// <param name="parent">parent container insert into</param>
/// <param name="text">text to insert</param>
private void AddAsDrop(List<IHTMLItem> parent, SimpleText text)
{
var span1 = new Span(HTMLElementType.XHTML11);
SetClassType(span1, ElementStylesV2.CapitalDrop);
int dropEnd = 0;
// "pad" the white spaces so drop starts from visible character
while (dropEnd < text.Text.Length && UnicodeHelpers.IsSpaceLike(text.Text[dropEnd]) )
{
dropEnd++;
}
if (dropEnd >= text.Text.Length) // in case the text is too short for drop
{
parent.Add(new SimpleHTML5Text(HTMLElementType.XHTML11) { Text = text.Text });
return;
}
// calculate the initial drop part
string dropPart = text.Text.Substring(0, dropEnd + 1);
// non-drop part starts from the next character
int nondropPosition = dropEnd + 1;
// If first character is dash/hyphen like we need to add character to
// capital drop so it looks better with next character
if (UnicodeHelpers.IsNeedToBeJoinInDrop(dropPart[dropEnd]))
{
// we need to add to capital drop all spaces if any
while (nondropPosition < text.Text.Length && UnicodeHelpers.IsSpaceLike(text.Text[nondropPosition]))
{
nondropPosition++;
}
// we need to advance to include one following nonspace character , unless
// we already at last character of the text
if (nondropPosition < text.Text.Length)
{
nondropPosition++;
}
// update drop part with the "string" we calculated
dropPart += text.Text.Substring(dropEnd + 1, nondropPosition - dropEnd - 1);
}
span1.Add(new SimpleHTML5Text(HTMLElementType.XHTML11) { Text = dropPart });
parent.Add(span1);
string substring = text.Text.Substring(nondropPosition);
if (substring.Length > 0)
{
parent.Add(new SimpleHTML5Text(HTMLElementType.XHTML11) { Text = substring });
}
}
/// <summary>
/// Processes all the references and removes invalid anchors
/// Invalid meaning pointing to non-existing IDs
/// only "internal" anchors are removed
/// </summary>
private void RemoveInvalidAnchor(KeyValuePair<string, List<Anchor>> link)
{
// remove all references to this ID
foreach (var element in _references[link.Key])
{
// The Anchor element can't have empty reference so
// we remove it and in case it has some meaningful content
// replace with span that is meaningless non-block element
// so contained text etc are kept
if (element.SubElements().Count != 0)
{
var spanElement = new Span(element.HTMLStandard);
foreach (var subElement in element.SubElements())
{
spanElement.Add(subElement);
}
if (element.Parent != null)
{
int index = element.Parent.SubElements().IndexOf(element);
if (index != -1)
{
spanElement.Parent = element.Parent;
element.Parent.SubElements().Insert(index, spanElement);
}
}
if (!string.IsNullOrEmpty((string)element.GlobalAttributes.ID.Value))
{
spanElement.GlobalAttributes.ID.Value = element.GlobalAttributes.ID.Value; // Copy ID anyway - may be someone "jumps" here
_ids[(string)element.GlobalAttributes.ID.Value] = spanElement; // and update the "pointer" to element
}
spanElement.GlobalAttributes.Class.Value = ElementStylesV2.BadExternalLink;
}
if (element.Parent != null)
{
element.Parent.Remove(element);
}
}
}
/// <summary>
/// Processes all the references and removes invalid anchors
/// Invalid meaning pointing to non-existing IDs
/// only "internal" anchors are removed
/// </summary>
public void RemoveInvalidAnchors()
{
var listToRemove = new List<string>();
foreach (var reference in _references)
{
// If reference does not points on one of valid IDs and it's not external reference
if (!IsIdUsed(reference.Key) && !ReferencesUtils.IsExternalLink(reference.Key))
{
listToRemove.Add(reference.Key);
// remove all references to this ID
foreach (var element in _references[reference.Key])
{
// The Anchor element can't have empty reference so
// we remove it and in case it has some meaningful content
// replace with span that is meaningless non-block element
// so contained text etc are kept
if (element.SubElements().Count != 0)
{
var spanElement = new Span(element.HTMLStandard);
foreach (var subElement in element.SubElements())
{
spanElement.Add(subElement);
}
if (element.Parent != null)
{
int index = element.Parent.SubElements().IndexOf(element);
if (index != -1)
{
spanElement.Parent = element.Parent;
element.Parent.SubElements().Insert(index, spanElement);
}
}
if (!string.IsNullOrEmpty((string)element.GlobalAttributes.ID.Value))
{
spanElement.GlobalAttributes.ID.Value = element.GlobalAttributes.ID.Value; // Copy ID anyway - may be someone "jumps" here
_ids[(string)element.GlobalAttributes.ID.Value] = spanElement; // and update the "pointer" to element
}
spanElement.GlobalAttributes.Class.Value = ElementStylesV2.BadExternalLink;
}
if (element.Parent != null)
{
element.Parent.Remove(element);
}
}
}
}
// Remove the unused anchor (and their ID if they have one)
// from the lists
foreach (var toRemove in listToRemove)
{
_references.Remove(toRemove);
}
}
