// protected constructor -------------------------------------------
/// <summary>
/// Trie constructor for CharTrie use.
/// </summary>
///
/// <param name="inputStream">ICU data file input stream which contains the trie</param>
/// <param name="dataManipulate">object containing the information to parse the trie data</param>
/// <exception cref="IOException">thrown when input stream does not have the right header.</exception>
/// @draft 2.1
protected internal Trie(DataInputStream inputStream, Trie.DataManipulate dataManipulate)
{
DataInputStream input = inputStream; // new DataInputStream(inputStream);
// Magic number to authenticate the data.
int signature = input.ReadInt();
m_options_ = input.ReadInt();
if (!CheckHeader(signature))
{
throw new ArgumentException(
"ICU data file error: Trie header authentication failed, please check if you have the most updated ICU data file");
}
if (dataManipulate != null)
{
m_dataManipulate_ = dataManipulate;
}
else
{
m_dataManipulate_ = new Trie.DefaultGetFoldingOffset();
}
m_isLatin1Linear_ = (m_options_ & HEADER_OPTIONS_LATIN1_IS_LINEAR_MASK_) != 0;
m_dataOffset_ = input.ReadInt();
m_dataLength_ = input.ReadInt();
Unserialize(inputStream);
}
/// <summary>
/// Trie constructor
/// </summary>
///
/// <param name="index">array to be used for index</param>
/// <param name="options">used by the trie</param>
/// <param name="dataManipulate">object containing the information to parse the trie data</param>
/// @draft 2.2
protected internal Trie(char[] index, int options, Trie.DataManipulate dataManipulate)
{
m_options_ = options;
if (dataManipulate != null)
{
m_dataManipulate_ = dataManipulate;
}
else
{
m_dataManipulate_ = new Trie.DefaultGetFoldingOffset();
}
m_isLatin1Linear_ = (m_options_ & HEADER_OPTIONS_LATIN1_IS_LINEAR_MASK_) != 0;
m_index_ = index;
m_dataOffset_ = m_index_.Length;
}