Tcl_TranslateFileName - convert file name to native form

       Tcl_Interp *interp (in)              Interpreter in which to report an error, if any.

       const char *name (in)                File name

       Tcl_DString *bufferPtr (in/out)      If  needed,  this dynamic string is used to store the new file name.
                                            At the time of the call it should be  uninitialized  or  free.   The
                                            caller  must  eventually  call  Tcl_DStringFree  to free up anything
                                            stored here.
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       This utility procedure translates a file name to a platform-specific form which, after being converted to
       the appropriate encoding, is suitable for passing to the  local  operating  system.   In  particular,  it
       converts network names into native form.

       However, with the advent of the newer Tcl_FSGetNormalizedPath and Tcl_FSGetNativePath, there is no longer
       any  need  to  use  this  procedure.   In  particular,  Tcl_FSGetNativePath  performs  all  the necessary
       translation and encoding conversion, is virtual-filesystem aware, and caches the native result for faster
       repeated calls.  Finally Tcl_FSGetNativePath does not require you to free anything afterwards.

       If Tcl_TranslateFileName has to translate the name then it uses the dynamic string at *bufferPtr to  hold
       the  new  string  it  generates.   After Tcl_TranslateFileName returns a non-NULL result, the caller must
       eventually invoke Tcl_DStringFree to free any information placed in *bufferPtr.  The caller need not know
       whether or  not  Tcl_TranslateFileName  actually  used  the  string;   Tcl_TranslateFileName  initializes
       *bufferPtr even if it does not use it, so the call to Tcl_DStringFree will be safe in either case.

       If  an error occurs (e.g. because there was no user by the given name) then NULL is returned and an error
       message will be left in the interpreter's result.  When an error occurs, Tcl_TranslateFileName frees  the
       dynamic string itself so that the caller need not call Tcl_DStringFree.

       The  caller is responsible for making sure that the interpreter's result has its default empty value when
       Tcl_TranslateFileName is invoked.

       file name, home directory, translate, user

Tcl                                                    8.1                           Tcl_TranslateFileName(3tcl)

       Tcl_TranslateFileName - convert file name to native form

filename(3tcl)

#include<tcl.h>

       char *
       Tcl_TranslateFileName(interp, name, bufferPtr)