michael@0: /*
michael@0: ******************************************************************************
michael@0: *
michael@0: *   Copyright (C) 1998-2004, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: *
michael@0: ******************************************************************************
michael@0: *
michael@0: *  ucnvdisp.c:
michael@0: *  Implements APIs for the ICU's codeset conversion library display names.
michael@0: *
michael@0: * Modification History:
michael@0: *
michael@0: *   Date        Name        Description
michael@0: *   04/04/99    helena      Fixed internal header inclusion.
michael@0: *   05/09/00    helena      Added implementation to handle fallback mappings.
michael@0: *   06/20/2000  helena      OS/400 port changes; mostly typecast.
michael@0: *   09/08/2004  grhoten     split from ucnv.c
michael@0: */
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #if !UCONFIG_NO_CONVERSION
michael@0: 
michael@0: #include "unicode/ustring.h"
michael@0: #include "unicode/ures.h"
michael@0: #include "unicode/ucnv.h"
michael@0: #include "cstring.h"
michael@0: #include "ustr_imp.h"
michael@0: #include "ucnv_imp.h"
michael@0: #include "putilimp.h"
michael@0: 
michael@0: U_CAPI int32_t U_EXPORT2
michael@0: ucnv_getDisplayName(const UConverter *cnv,
michael@0:                     const char *displayLocale,
michael@0:                     UChar *displayName, int32_t displayNameCapacity,
michael@0:                     UErrorCode *pErrorCode) {
michael@0:     UResourceBundle *rb;
michael@0:     const UChar *name;
michael@0:     int32_t length;
michael@0:     UErrorCode localStatus = U_ZERO_ERROR;
michael@0: 
michael@0:     /* check arguments */
michael@0:     if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     if(cnv==NULL || displayNameCapacity<0 || (displayNameCapacity>0 && displayName==NULL)) {
michael@0:         *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     /* open the resource bundle and get the display name string */
michael@0:     rb=ures_open(NULL, displayLocale, pErrorCode);
michael@0:     if(U_FAILURE(*pErrorCode)) {
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     /* use the internal name as the key */
michael@0:     name=ures_getStringByKey(rb, cnv->sharedData->staticData->name, &length, &localStatus);
michael@0:     ures_close(rb);
michael@0: 
michael@0:     if(U_SUCCESS(localStatus)) {
michael@0:         /* copy the string */
michael@0:         if (*pErrorCode == U_ZERO_ERROR) {
michael@0:             *pErrorCode = localStatus;
michael@0:         }
michael@0:         u_memcpy(displayName, name, uprv_min(length, displayNameCapacity)*U_SIZEOF_UCHAR);
michael@0:     } else {
michael@0:         /* convert the internal name into a Unicode string */
michael@0:         length=(int32_t)uprv_strlen(cnv->sharedData->staticData->name);
michael@0:         u_charsToUChars(cnv->sharedData->staticData->name, displayName, uprv_min(length, displayNameCapacity));
michael@0:     }
michael@0:     return u_terminateUChars(displayName, displayNameCapacity, length, pErrorCode);
michael@0: }
michael@0: 
michael@0: #endif
michael@0: 
michael@0: /*
michael@0:  * Hey, Emacs, please set the following:
michael@0:  *
michael@0:  * Local Variables:
michael@0:  * indent-tabs-mode: nil
michael@0:  * End:
michael@0:  *
michael@0:  */