// Resolves conrefs in this file
private void ResolveConRefs(DitaElement parentElement, DitaCollection collection)
{
if (parentElement != null)
{
bool updated = false;
// Does this element have a conref?
string conref = parentElement.AttributeValueOrDefault("conref", String.Empty);
if (!string.IsNullOrEmpty(conref))
{
// We expect the conref to be in the form of filename.xml#fileid/elementid
Regex conRefRegex = new Regex("^(.*)#(.*)/(.*)$", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
MatchCollection conRefMatchCollection = conRefRegex.Matches(conref);
if (conRefMatchCollection?.Count > 0 && (conRefMatchCollection[0].Groups.Count == 4))
{
// Extract the components of the conref
string refFileName = conRefMatchCollection[0].Groups[1].Value;
string refFileId = conRefMatchCollection[0].Groups[2].Value;
string refElementId = conRefMatchCollection[0].Groups[3].Value;
if (Path.GetFileNameWithoutExtension(refFileName) != refFileId)
{
Trace.TraceWarning($"conref file name '{refFileName}' is not equal to file id '{refFileId}'.");
}
// Try to find the file that this conref refers to
DitaFile refFile = collection.GetFileByName(refFileName);
if (refFile != null)
{
// Does the references element exist in this file
if (refFile.ElementsById.ContainsKey(refElementId))
{
DitaElement refElement = refFile.ElementsById[refElementId];
// Copy the refernce element
parentElement.Copy(refElement);
updated = true;
}
else
{
Trace.TraceWarning($"Element '{refElementId}' not found in file '{refFileName}'.");
}
}
else
{
Trace.TraceWarning($"Can't find file '{refFileName}' referenced in file '{FileName}'.");
}
}
else
{
Trace.TraceWarning($"conref {conref} not in expected format.");
}
}
// Update child references
if (!updated && parentElement.Children != null)
{
foreach (DitaElement childElement in parentElement.Children)
{
ResolveConRefs(childElement, collection);
}
}
}
}
