Tcl_SplitPath(3)					      Tcl Library Procedures						  Tcl_SplitPath(3)

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NAME

       Tcl_SplitPath, Tcl_JoinPath, Tcl_GetPathType - manipulate platform-dependent file paths

SYNOPSIS

       #include <tcl.h>

       Tcl_SplitPath(path, argcPtr, argvPtr)

       char *
       Tcl_JoinPath(argc, argv, resultPtr)

       Tcl_PathType
       Tcl_GetPathType(path)

ARGUMENTS

       const char *path (in)			  File	path  in  a  form  appropriate for the current platform (see the filename manual entry for
						  acceptable forms for path names).

       int *argcPtr (out)			  Filled in with number of path elements in path.

       const char ***argvPtr (out)		  *argvPtr will be filled in with the address of an array of pointers to the strings that are  the
						  extracted  elements  of  path.  There will be *argcPtr valid entries in the array, followed by a
						  NULL entry.

       int argc (in)				  Number of elements in argv.

       const char *const *argv (in)		  Array of path elements to merge together into a single path.

       Tcl_DString *resultPtr (in/out)		  A pointer to an initialized Tcl_DString to which the result of Tcl_JoinPath will be appended.
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DESCRIPTION

       These procedures have been superceded by the objectified procedures in the FileSystem man page, which are more efficient.

       These procedures may be used to disassemble and reassemble file paths in a platform independent manner: they provide C-level access to  the
       same functionality as the file split, file join, and file pathtype commands.

       Tcl_SplitPath  breaks  a path into its constituent elements, returning an array of pointers to the elements using argcPtr and argvPtr.  The
       area of memory pointed to by *argvPtr is dynamically allocated; in addition to the array of pointers, it also holds copies of all the  path
       elements.  It is the caller's responsibility to free all of this storage.  For example, suppose that you have called Tcl_SplitPath with the
       following code:
	      int argc;
	      char *path;
	      char **argv;
	      ...
	      Tcl_SplitPath(string, &argc, &argv);
       Then you should eventually free the storage with a call like the following:
	      Tcl_Free((char *) argv);

       Tcl_JoinPath is the inverse of Tcl_SplitPath: it takes a collection of path elements given by argc and argv and generates a  result  string
       that is a properly constructed path. The result string is appended to resultPtr.  ResultPtr must refer to an initialized Tcl_DString.

       If  the	result	of  Tcl_SplitPath  is passed to Tcl_JoinPath, the result will refer to the same location, but may not be in the same form.
       This is because Tcl_SplitPath and Tcl_JoinPath eliminate duplicate path separators and return a normalized form for each platform.

       Tcl_GetPathType returns the type of the specified path, where Tcl_PathType is one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or TCL_PATH_VOL-
       UME_RELATIVE.  See the filename manual entry for a description of the path types for each platform.

KEYWORDS

       file, filename, join, path, split, type

Tcl									7.5							  Tcl_SplitPath(3)