tcl7.6 C API - Translate
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.
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 empty. The caller
must eventually call
Tcl_DStringFree to free
up anything stored
here.
DESCRIPTION
This utility procedure translates a file name to a form
suitable for passing to the local operating system. It con-
verts network names into native form and does tilde substi-
tution.
If Tcl_TranslateFileName has to do tilde substitution or
translate the name then it uses the dynamic string at *buf-
ferPtr 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 informa-
tion placed in *bufferPtr. The caller need not know whether
or not Tcl_TranslateFileName actually used the string;
Tcl_TranslateFileName initializes *bufferPtr even if it
doesn't 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 at interp->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 interp-
>result has its default empty value when
Tcl_TranslateFileName is invoked.
SEE ALSO
filename
KEYWORDS
file name, home directory, tilde, translate, user