internal void SavedIndexTokenDisposed(StringScannerSaveIndexToken token)
{
savedIndexTokens.Remove(token);
}
internal void SavedIndexTokenCreated(StringScannerSaveIndexToken token)
{
savedIndexTokens.Add(token, CurrentIndex);
}
/// <summary>
/// Gets the string, starting at the specified saved index token, trimming start and end by the specified amount.
/// </summary>
/// <param name="token">The saved index token object.</param>
/// <param name="trimStart">The amount to trim the start of the string.</param>
/// <param name="trimEnd">The amount to trim the end of the string.</param>
/// <returns></returns>
public string GetString(StringScannerSaveIndexToken token, int trimStart = 0, int trimEnd = 0)
{
int start = GetIndex(token) + trimStart;
return(Content.Substring(start, CurrentIndex - start - trimEnd));
}
/// <summary>
/// Restores the saved index from the specified saved index token.
/// </summary>
/// <param name="token">The saved index token object.</param>
public void RestoreIndex(StringScannerSaveIndexToken token)
{
CurrentIndex = GetIndex(token);
}
/// <summary>
/// Gets the index relative to the specified saved index token.
/// </summary>
/// <param name="token">The saved index token object.</param>
public int GetRelativeIndex(StringScannerSaveIndexToken token)
{
return(CurrentIndex - GetIndex(token));
}
/// <summary>
/// Gets the index of the specified saved index token.
/// </summary>
/// <param name="token">The saved index token object.</param>
public int GetIndex(StringScannerSaveIndexToken token)
{
return(savedIndexTokens[token]);
}