Trf_TransformCharacter(3) Interface to procedures for transformation of a single character.


#include <transform.h>

int Trf_TransformCharacter
       Trf_ControlBlock ctrlBlock,

       unsigned int character,

       Tcl_Interp *interp,

       ClientData clientData



Trf_ControlBlock ctrlBlock
State of encoder/decoder.
unsigned int character
Character to transform.
Tcl_Interp *interp
Interpreter for error messages (NULL possible).
ClientData clientData
Arbitrary information, as defined in Trf_TypeDefinition.clientData.


A procedure of this type is called to encode/decode a single character. 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. This one is easier to implement, the second one should be faster. If both are provided, -> 'Trf_TransformBuffer' takes precedence.