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Tcl_TranslateFileName(3)                   Tcl Library Procedures                   Tcl_TranslateFileName(3)



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NAME
       Tcl_TranslateFileName - convert file name to native form and replace tilde with home directory

SYNOPSIS
       #include <tcl.h>

       char *
       Tcl_TranslateFileName(interp, name, bufferPtr)

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

       const char *name (in)                File name, which may start with a "~".

       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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DESCRIPTION
       This utility procedure translates a file name to a platform-specific form  which,  after  being  con-verted converted
       verted  to  the appropriate encoding, is suitable for passing to the local operating system.  In par-ticular, particular,
       ticular, it converts network names into native form and does tilde substitution.

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

       If  Tcl_TranslateFileName has to do tilde substitution or 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 nonNULL
       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.


SEE ALSO
       filename


KEYWORDS
       file name, home directory, tilde, translate, user



Tcl                                                  8.1                            Tcl_TranslateFileName(3)