public List <string> CheckForMissingChapters()
{
var srcToTitle = ToC.BuildScrToTitleMap();
var titles = new List <string>();
int previousChapterNumber = Epub.NoChapterNum;
Signature previousSignature = new Signature();
foreach (var item in Opf.Spine)
{
string title = null;
srcToTitle.TryGetValue(item.AbsolutePath, out title);
int currentChapterNumber = title.ExtractProbableChapterNumber();
bool missing = ((currentChapterNumber != Epub.NoChapterNum) &&
(previousChapterNumber != Epub.NoChapterNum) &&
(currentChapterNumber != (previousChapterNumber + 1)));
previousChapterNumber = currentChapterNumber;
if (missing)
{
titles.Add($"Might be a missing chapter before \"{title}\"");
}
var sig = item.RawBytes.ToXhtml().CalcSignature();
string possibleError = item.CheckForErrors(sig, previousSignature);
if (possibleError != null)
{
titles.Add(possibleError);
}
previousSignature = sig;
}
return(titles);
}
public void SortSpineByChapterNumber()
{
var srcToTitle = ToC.BuildScrToTitleMap();
int Comparison(EpubItem x, EpubItem y)
{
string title = null;
srcToTitle.TryGetValue(x.AbsolutePath, out title);
int xChapterNumber = title.ExtractProbableChapterNumber();
title = null;
srcToTitle.TryGetValue(y.AbsolutePath, out title);
int yChapterNumber = title.ExtractProbableChapterNumber();
return(xChapterNumber - yChapterNumber);
}
Opf.Spine.Sort(Comparison);
ToC.GenerateToCFromChapters(Opf.Spine, srcToTitle);
}