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XtResolvePathname(3Xt)		XT FUNCTIONS	       XtResolvePathname(3Xt)



NAME
  XtResolvePathname - search for a file using standard substitution

SYNTAX
  String XtResolvePathname(display, type, filename, suffix, path, substitu-
  tions, num_substitutions, predicate)
	Display *display;
	String type, filename, suffix, path;
	Substitution substitutions;
	Cardinal num_substitutions;
	XtFilePredicate predicate;

ARGUMENTS

  display     Specifies the display to use to find the language for language
	      substitutions.

  type
  filename
  suffix      Specify values to substitute into the path.

  path	      Specifies the list of file specifications, or NULL.

  substitutions
	      Specifies a list of additional substitutions to make into the
	      path, or NULL.

  num_substitutions
	      Specifies the number of entries in substitutions.

  predicate   Specifies a procedure called to judge each potential file name,
	      or NULL.

DESCRIPTION
  The substitutions specified by XtResolvePathname are determined from the
  value of the language string retrieved by XtDisplayInitialize for the
  specified display.  To set the language for all applications specify
  ``*xnlLanguage: lang'' in the resource database. The format and content of
  the language string are implementation-defined.   One suggested syntax is
  to compose the language string of three parts;  a  ``language	 part'',  a
  ``territory  part'' and a ``codeset part''.  The manner in which this com-
  position is accomplished is implementation-defined and the Intrinsics make
  no interpretation of the parts other than to use them in substitutions as
  described below.

  XtResolvePathname calls XtFindFile with the following substitutions in
  addition to any passed by the caller and returns the value returned by
  XtFindFile:

  %N   The value of the filename parameter, or the application's class name
       if filename is NULL.

  %T   The value of the type parameter.

  %S   The value of the suffix parameter.

  %L   The language string associated with the specified display.

  %l   The language part of the display's language string.

  %t   The territory part of the display's language string.

  %c   The codeset part of the display's language string.

  %C   The customization string retrieved from the resource database associ-
       ated with display.

  %D   The value of the implementation-specific default path.

  If a path is passed to XtResolvePathname, it will be passed along to
  XtFindFile.  If the path argument is NULL, the value of the XFILESEARCHPATH
  environment variable will be passed to XtFindFile.  If XFILESEARCHPATH is
  not defined, an implementation-specific default path will be used which
  contains at least 6 entries.	These entries must contain the following sub-
  stitutions:

  1. %C, %N, %S, %T, %L	   or%C, %N, %S, %T, %l, %t, %c
  2. %C, %N, %S, %T, %l
  3. %C, %N, %S, %T
  4. %N, %S, %T, %L   or   %N, %S, %T, %l, %t, %c
  5. %N, %S, %T, %l
  6. %N, %S, %T

  The order of these six entries within the path must be as given above.  The
  order and use of substitutions within a given entry is implementation
  dependent.  If the path begins with a colon, it will be preceded by %N%S.
  If the path includes two adjacent colons, %N%S will be inserted between
  them.

  The type parameter is intended to be a category of files, usually being
  translated into a directory in the pathname.	Possible values might include
  ``app-defaults'', ``help'', and ``bitmap''.

  The suffix parameter is intended to be appended to the file name.  Possible
  values might include ``.txt'', ``.dat'', and ``.bm''.

  A suggested value for the default path on POSIX-based systems is

       &lt;XRoot&gt;/lib/X11/%L/%T/%N%C%S:&lt;XRoot&gt;/lib/X11/%l/%T/%N%C%S:\
       &lt;XRoot&gt;/lib/X11/%T/%N%C%S:&lt;XRoot&gt;/lib/X11/%L/%T/%N%S:\
       &lt;XRoot&gt;/lib/X11/%l/%T/%N%S:&lt;XRoot&gt;/lib/X11/%T/%N%S

  where &lt;XRoot&gt; is replaced by the root of the X11 installation tree
  (/usr/X11R6, for example).

  Using this example, if the user has specified a language, it will be used
  as a subdirectory of &lt;XRoot&gt;/lib/X11 that will be searched for other files.
  If the desired file is not found there, the lookup will be tried again
  using just the language part of the specification.  If the file is not
  there, it will be looked for in &lt;XRoot&gt;/lib/X11.  The type parameter is
  used as a subdirectory of the language directory or of &lt;XRoot&gt;/lib/X11, and
  suffix is appended to the file name.

  The %D substitution allows the addition of path elements to the
  implementation-specific default path, typically to allow additional direc-
  tories to be searched without preventing resources in the system direc-
  tories from being found.  For example, a user installing resource files
  under a directory called ``ourdir'' might set XFILESEARCHPATH to

       %D:ourdir/%T/%N%C:ourdir/%T/%N

  The customization string is obtained by querying the resource database
  currently associated with the display (the database returned by XrmGetData-
  base) for the resource application_name.customization, class
  application_class.Customization where application_name and
  application_class are the values returned by XtGetApplicationNameAndClass.
  If no value is specified in the database, the empty string is used.

  It is the responsibility of the caller to free the returned string using
  XtFree when it is no longer needed.

SEE ALSO
  X Toolkit Intrinsics - C Language Interface
  Xlib - C Language X Interface

























































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