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Tcl_TranslateFileName(3tcl) Tcl Library Procedures Tcl_TranslateFileName(3tcl) 


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.
    
    

    
 

    
 

  




DESCRIPTION

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 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
  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



  

    8.1
    Tcl