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XpSetLocaleHinter(3Xp)         XPRINT FUNCTIONS         XpSetLocaleHinter(3Xp)

NAME
       XpSetLocaleHinter -  Sets a "locale hinter" function and description of
       it.

SYNOPSIS
             cc [ flag... ] file... -lXp [ library... ]
             #include <X11/extensions/Print.h>

       void XpSetLocaleHinter ( hinter_proc hinter_desc )
             XPHinterProc hinter_proc;
             char *hinter_desc;

ARGUMENTS
       hinter_proc
              A pointer to a "hinter proc".

       hinter_desc
              A pointer to contextual information about the locale hinter
              proc.

DESCRIPTION
       Since (to date) there is no single industry standard for locale values,
       locale information about the current client required by
       XpCreateContext, XpGetPrinterList and XpGetPdmStartParams is at best
       considered a "hint" when transmitted to the X Print Server and PDM. In
       single vendor environments, the locale hint should be consistent and
       understood. In multi-vendor environments however, the locale hint may
       or may not be understood. The caller locale will be used as the
       fallback default.

       XpSetLocaleHinter and XpGetLocaleHinter access hooks that are used to
       register more advanced hint generators. By default, Xp uses a hinter
       proc that calls setlocale on  the CTYPE category on POSIX systems, and
       hinter_desc is NULL.

       XpSetLocaleHinter sets the hinter_proc and hinter_desc which will be
       subsequently used by the Xp calls requiring a locale hint (see above).
       hinter_proc is the function that will generate the locale hint (for
       example, "C"), and hinter_desc is a string, with or without the
       embeddable keyword %locale%, that provides a higher level context for
       the results of hinter_proc.

       If hinter_proc is set to NULL, then the default Xp hinter proc is
       installed.  XpSetLocaleHinter makes its own private copy of hinter_desc
       prior to returning.

       An example set call might look as follows:

           XpSetLocaleHinter( my_hinter, "%locale%;CDElocale" );

       Where my_hinter might look as follows:

          char *my_hinter()
          {
              /*
               * Use setlocale() to retrieve the current locale.
               */
              return( my_x_strdup( setlocale(LC_CTYPE, (char *) NULL) ) );
          }

       When the client's locale is needed, if both hinter_desc and the results
       of hinter_proc are non-NULL, and the keyword %locale% is found in
       hinter_desc, then the keyword will be replaced with the result of
       hinter_proc.  The resulting string will be used as the locale hint by
       the Xp calls.

       If both hinter_desc and the results of hinter_proc are non-NULL, but
       the keyword %locale% is not found in hinter_desc, then hinter_desc, as
       is, becomes the string used as the locale hint by the Xp calls.

       If one of hinter_desc or the results of hinter_proc is NULL, then the
       other non-NULL value becomes the string used as the locale hint by the
       Xp calls.

       If hinter_desc and the results of hinter_proc are NULL, then a NULL
       (i.e. (char *) NULL) locale hint is sent by the Xp calls.

       The syntax for hinter_desc is a variation of the unadopted X/Open
       standard for a "String Network Locale-Specification Syntax" (X/Open,
       Distributed Internationalization Services, Version 2, 1994 Snapshot).
       The Xp hinter_desc syntax is:

           name_spec[;registry_spec[;ver_spec[;encoding_spec]]]

       In Xp, the first item is the locale name, followed by progressively
       more detailed information about the locale name, with each piece of
       information separated by a `;'.

STRUCTURES
       The signature for hinter_proc is defined in <X11/extensions/Print.h> as
       follows:

           typedef char * (*XPHinterProc)();

       hinter_proc is expected to return a string that can be freed using
       XFree by the Xp calls themselves.

       Some examples include ( hinter_desc to left, expanded results to the
       right):

           CFRENCH                                CFRENCH
           %locale%                               C
           %locale%;CDElocale                     C;CDElocale
           %locale%;HP                            C;HP
           %locale%;IBM                           C;IBM
           %locale%;XOPEN;01_11;XFN-001001        de_DE;XOPEN;01_11;XFN-001001

FILES
       <X11/extensions/Print.h>
SEE ALSO
       XpCreateContext(3Xp), XpGetLocaleHinter(3Xp), XpGetPdmStartParams(3Xp),
       XpGetPrinterList(3Xp), XpSetLocaleHinter(3Xp)

X Version 11                      libXp 1.0.3           XpSetLocaleHinter(3Xp)