XtResolvePathname(3Xt)

     NAME
          XtResolvePathname - search for a file using standard
          substitution

     SYNTAX
          String XtResolvePathname(display, type, filename, suffix,
          path, substitutions, 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 composition 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 associated 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 substitutions:

          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

               <XRoot>/lib/X11/%L/%T/%N%C%S:<XRoot>/lib/X11/%l/%T/%N%C%S:\
               <XRoot>/lib/X11/%T/%N%C%S:<XRoot>/lib/X11/%L/%T/%N%S:\
               <XRoot>/lib/X11/%l/%T/%N%S:<XRoot>/lib/X11/%T/%N%S

          where <XRoot> 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 <XRoot>/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 <XRoot>/lib/X11.  The type
          parameter is used as a subdirectory of the language
          directory or of <XRoot>/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 directories to be searched without preventing
          resources in the system directories 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 XrmGetDatabase) 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