public unsafe void TestWellKnownStrings(string input, bool expected)
{
// create a copy of the data; no cheating!
byte[] bytes = Encoding.ASCII.GetBytes(input);
fixed(byte *ptr = bytes)
{
string result = WellKnownStrings.TryIdentify(ptr, bytes.Length);
if (expected)
{
Assert.AreEqual(input, result);
}
else
{
Assert.IsNull(result);
}
if (expected)
{
// try again, and check we get the same instance
string again = WellKnownStrings.TryIdentify(ptr, bytes.Length);
Assert.AreSame(result, again);
}
}
}
/// <summary>Gets a string from the strings section by the string's well-known index.</summary>
/// <param name="stringTableIndex">The index of the string to find.</param>
/// <returns>The string if it's in the database; otherwise, null.</returns>
public string GetString(WellKnownStrings stringTableIndex)
{
int index = (int)stringTableIndex;
Debug.Assert(index >= 0);
if (index >= _stringSectionNumOffsets)
{
// Some terminfo files may not contain enough entries to actually
// have the requested one.
return(null);
}
int tableIndex = ReadInt16(_data, StringOffsetsOffset + (index * 2));
if (tableIndex == -1)
{
// Some terminfo files may have enough entries, but may not actually
// have it filled in for this particular string.
return(null);
}
return(ReadString(_data, StringsTableOffset + tableIndex));
}
/// <summary>Gets a string from the strings section by the string's well-known index.</summary>
/// <param name="stringTableIndex">The index of the string to find.</param>
/// <returns>The string if it's in the database; otherwise, null.</returns>
public string GetString(WellKnownStrings stringTableIndex)
{
int index = (int)stringTableIndex;
Debug.Assert(index >= 0);
if (index >= _stringSectionNumOffsets)
{
// Some terminfo files may not contain enough entries to actually
// have the requested one.
return null;
}
int tableIndex = ReadInt16(_data, StringOffsetsOffset + (index * 2));
if (tableIndex == -1)
{
// Some terminfo files may have enough entries, but may not actually
// have it filled in for this particular string.
return null;
}
return ReadString(_data, StringsTableOffset + tableIndex);
}
