/// <summary>
/// Loads and parses quest markup data to QuestDocument.
/// No additional logical structure checks, use "validate" method for it.
/// </summary>
/// <param name="markup">Markup source of quest data.</param>
public static QuestDocument LoadMarkup(string markup)
{
if (string.IsNullOrEmpty(markup))
{
throw new Exception("Invalid markup data");
}
var stream = new QuestStream(markup);
var doc = new QuestDocument();
while (!stream.Eof())
{
var lineId = stream.pointer;
string name;
var page = ParsePage(stream, out name);
if (doc.pages.ContainsKey(name))
{
throw new Exception(
string.Format("Error at {0} line : page with name \"{1}\" already declared before", lineId, name));
}
doc.pages[name] = page;
if (string.IsNullOrEmpty(doc.entry))
{
doc.entry = name;
}
}
doc.ResetProgress();
return(doc);
}
/// <summary>
/// Validates QuestDocument for possible errors. Exception will be thrown on any detected error.
/// </summary>
/// <param name="doc">Document to validate.</param>
public static void Validate(QuestDocument doc)
{
_linksToValidate.Clear();
_linksToValidate[doc.entry] = true;
foreach (var pagePair in doc.pages)
{
var page = pagePair.Value;
if (page == null)
{
throw new Exception(string.Format("Invalid page with name \"{0}\"", pagePair.Key));
}
if (page.texts == null || page.texts.Count == 0)
{
throw new Exception(string.Format("Page \"{0}\": no texts", pagePair.Key));
}
if (page.choices == null || page.choices.Count == 0)
{
throw new Exception(string.Format("Page \"{0}\": no choices", pagePair.Key));
}
for (var i = 0; i < page.choices.Count; i++)
{
var link = page.choices[i].link;
if (link != "end")
{
if (!doc.pages.ContainsKey(link))
{
_linksToValidate.Clear();
throw new Exception(string.Format("Invalid link from page \"{0}\" to unknown \"{1}\"", pagePair.Key, link));
}
_linksToValidate[link] = true;
}
}
}
foreach (var pagePair in doc.pages)
{
if (!_linksToValidate.ContainsKey(pagePair.Key))
{
_linksToValidate.Clear();
throw new Exception(string.Format("Page without references: \"{0}\"", pagePair.Key));
}
}
_linksToValidate.Clear();
}
