/// <summary>
/// Appends a fragment to the list of fragments.
/// </summary>
/// <param name="newFragment">The fragment to append. May not be null.</param>
public void Append(MixedCodeDocumentFragment newFragment)
{
if (newFragment == null)
{
throw new ArgumentNullException("newFragment");
}
_items.Add(newFragment);
}
private void Parse()
{
_state = ParseState.Text;
_index = 0;
_currentfragment = CreateFragment(MixedCodeDocumentFragmentType.Text);
while (_index < _text.Length)
{
_c = _text[_index];
IncrementPosition();
switch (_state)
{
case ParseState.Text:
if (_index + TokenCodeStart.Length < _text.Length)
{
if (_text.Substring(_index - 1, TokenCodeStart.Length) == TokenCodeStart)
{
_state = ParseState.Code;
_currentfragment.Length = _index - 1 - _currentfragment.Index;
_currentfragment = CreateFragment(MixedCodeDocumentFragmentType.Code);
SetPosition();
continue;
}
}
break;
case ParseState.Code:
if (_index + TokenCodeEnd.Length < _text.Length)
{
if (_text.Substring(_index - 1, TokenCodeEnd.Length) == TokenCodeEnd)
{
_state = ParseState.Text;
_currentfragment.Length = _index + TokenCodeEnd.Length - _currentfragment.Index;
_index += TokenCodeEnd.Length;
_lineposition += TokenCodeEnd.Length;
_currentfragment = CreateFragment(MixedCodeDocumentFragmentType.Text);
SetPosition();
continue;
}
}
break;
}
}
_currentfragment.Length = _index - _currentfragment.Index;
}
/// <summary>
/// Prepends a fragment to the list of fragments.
/// </summary>
/// <param name="newFragment">The fragment to append. May not be null.</param>
public void Prepend(MixedCodeDocumentFragment newFragment)
{
if (newFragment == null)
{
throw new ArgumentNullException("newFragment");
}
_items.Insert(0, newFragment);
}
internal int GetFragmentIndex(MixedCodeDocumentFragment fragment)
{
if (fragment == null)
{
throw new ArgumentNullException("fragment");
}
for (int i = 0; i < _items.Count; i++)
{
if ((_items[i]) == fragment)
{
return i;
}
}
return -1;
}
/// <summary>
/// Remove a fragment from the list of fragments. If this fragment was not in the list, an exception will be raised.
/// </summary>
/// <param name="fragment">The fragment to remove. May not be null.</param>
public void Remove(MixedCodeDocumentFragment fragment)
{
if (fragment == null)
{
throw new ArgumentNullException("fragment");
}
int index = GetFragmentIndex(fragment);
if (index == -1)
{
throw new IndexOutOfRangeException();
}
RemoveAt(index);
}