/// <summary>
/// Tries to the parse the specified text into a definition.
/// </summary>
/// <typeparam name="T">Type of the text</typeparam>
/// <param name="text">The text.</param>
/// <param name="block">The block.</param>
/// <returns><c>true</c> if parsing is successful; <c>false</c> otherwise</returns>
public static bool TryParse<T>(ref T text, out LinkReferenceDefinition block) where T : ICharIterator
{
block = null;
string label;
string url;
string title;
SourceSpan labelSpan;
SourceSpan urlSpan;
SourceSpan titleSpan;
var startSpan = text.Start;
if (!LinkHelper.TryParseLinkReferenceDefinition(ref text, out label, out url, out title, out labelSpan, out urlSpan, out titleSpan))
{
return false;
}
block = new LinkReferenceDefinition(label, url, title)
{
LabelSpan = labelSpan,
UrlSpan = urlSpan,
TitleSpan = titleSpan,
Span = new SourceSpan(startSpan, titleSpan.End > 0 ? titleSpan.End: urlSpan.End)
};
return true;
}
public void Set(string label, LinkReferenceDefinition link)
{
if (link == null)
{
throw new ArgumentNullException(nameof(link));
}
if (!Contains(link))
{
Add(link);
if (!Links.ContainsKey(label))
{
Links[label] = link;
}
}
}
public static bool TryGetLinkReferenceDefinition(this MarkdownDocument document, string label, out LinkReferenceDefinition linkReferenceDefinition)
{
if (label == null)
{
throw new ArgumentNullException(nameof(label));
}
linkReferenceDefinition = null;
var references = document.GetData(DocumentKey) as LinkReferenceDefinitionGroup;
if (references == null)
{
return(false);
}
return(references.TryGet(label, out linkReferenceDefinition));
}
public static void SetLinkReferenceDefinition(this MarkdownDocument document, string label, LinkReferenceDefinition linkReferenceDefinition)
{
if (label == null)
{
throw new ArgumentNullException(nameof(label));
}
var references = document.GetLinkReferenceDefinitions();
references.Set(label, linkReferenceDefinition);
}
public bool TryGet(string label, out LinkReferenceDefinition link)
{
return(Links.TryGetValue(label, out link));
}