/// <summary>
/// Initializes a new instance of the <see cref="TagDirective"/> class.
/// </summary>
/// <param name="handle">The handle.</param>
/// <param name="prefix">The prefix.</param>
/// <param name="start">The start position of the token.</param>
/// <param name="end">The end position of the token.</param>
public TagDirective(string handle, string prefix, Mark start, Mark end)
: base(start, end)
{
if(string.IsNullOrEmpty(handle)) {
throw new ArgumentNullException("handle", "Tag handle must not be empty.");
}
if(!tagHandleValidator.IsMatch(handle)) {
throw new ArgumentException("Tag handle must start and end with '!' and contain alphanumerical characters only.", "handle");
}
this.handle = handle;
if(string.IsNullOrEmpty(prefix)) {
throw new ArgumentNullException("prefix", "Tag prefix must not be empty.");
}
this.prefix = prefix;
}
/// <summary>
/// Initializes a new instance of the <see cref="NodeEvent"/> class.
/// </summary>
/// <param name="anchor">The anchor.</param>
/// <param name="tag">The tag.</param>
/// <param name="start">The start position of the event.</param>
/// <param name="end">The end position of the event.</param>
protected NodeEvent(string anchor, string tag, Mark start, Mark end)
: base(start, end)
{
if(anchor != null) {
if(anchor.Length == 0) {
throw new ArgumentException("Anchor value must not be empty.", "anchor");
}
if(!anchorValidator.IsMatch(anchor)) {
throw new ArgumentException("Anchor value must contain alphanumerical characters only.", "anchor");
}
}
if(tag != null && tag.Length == 0) {
throw new ArgumentException("Tag value must not be empty.", "tag");
}
this.anchor = anchor;
this.tag = tag;
}
private int CreateMark (int previous) {
if (mark_end == marks.Length) {
Mark [] dest = new Mark [marks.Length * 2];
marks.CopyTo (dest, 0);
marks = dest;
}
int m = mark_end ++;
marks [m].Start = marks [m].End = -1;
marks [m].Previous = previous;
return m;
}
private void ResetGroups () {
int n = groups.Length;
if (marks == null)
marks = new Mark [n * 10];
for (int i = 0; i < n; ++ i) {
groups [i] = i;
marks [i].Start = -1;
marks [i].End = -1;
marks [i].Previous = -1;
}
mark_start = 0;
mark_end = n;
}