public HyphenationTree()
{
stoplist = new Dictionary <>(23); // usually a small table
classmap = new TernaryTree();
vspace = new ByteVector();
vspace.alloc(1); // this reserves index 0, which we don't use
}
public HyphenationTree()
{
stoplist = new Dictionary<>(23); // usually a small table
classmap = new TernaryTree();
vspace = new ByteVector();
vspace.alloc(1); // this reserves index 0, which we don't use
}
/// <summary>
/// Packs the values by storing them in 4 bits, two values into a byte Values
/// range is from 0 to 9. We use zero as terminator, so we'll add 1 to the
/// value.
/// </summary>
/// <param name="values"> a string of digits from '0' to '9' representing the
/// interletter values. </param>
/// <returns> the index into the vspace array where the packed values are stored. </returns>
protected internal virtual int packValues(string values)
{
int i, n = values.Length;
int m = (n & 1) == 1 ? (n >> 1) + 2 : (n >> 1) + 1;
int offset = vspace.alloc(m);
sbyte[] va = vspace.Array;
for (i = 0; i < n; i++)
{
int j = i >> 1;
sbyte v = (sbyte)((values[i] - '0' + 1) & 0x0f);
if ((i & 1) == 1)
{
va[j + offset] = (sbyte)(va[j + offset] | v);
}
else
{
va[j + offset] = (sbyte)(v << 4); // big endian
}
}
va[m - 1 + offset] = 0; // terminator
return(offset);
}