Interface to procedures for transformation of character sequences.
unsigned char *buf,
- Trf_ControlBlock ctrlBlock
State of encoder/decoder.
- unsigned char *buf
Characters to transform.
- int bufLen
Number of characters.
- Tcl_Interp *interp
Interpreter for error messages
- ClientData clientData
Arbitrary information, as defined
A procedure of this type is called to encode/decode a complete buffer. Return
value is a standard tcl error code. In case of failure and interp not
NULL an error message should be left in the result area of the specified
interpreter. Only one of 'Trf_TransformCharacter' and 'Trf_TransformBuffer'
must be provided. The first named is easier to implement, this one should be
faster. If both are provided, -> 'Trf_TransformBuffer' takes precedence.