Home | History | Annotate | Download | only in common 
      1 /*
      2 ******************************************************************************
      3 *
      4 *   Copyright (C) 1998-2004, International Business Machines
      5 *   Corporation and others.  All Rights Reserved.
      6 *
      7 ******************************************************************************
      8 *
      9 *  ucnvdisp.c:
     10 *  Implements APIs for the ICU's codeset conversion library display names.
     11 *
     12 * Modification History:
     13 *
     14 *   Date        Name        Description
     15 *   04/04/99    helena      Fixed internal header inclusion.
     16 *   05/09/00    helena      Added implementation to handle fallback mappings.
     17 *   06/20/2000  helena      OS/400 port changes; mostly typecast.
     18 *   09/08/2004  grhoten     split from ucnv.c
     19 */
     20 
     21 #include "unicode/utypes.h"
     22 
     23 #if !UCONFIG_NO_CONVERSION
     24 
     25 #include "unicode/ustring.h"
     26 #include "unicode/ures.h"
     27 #include "unicode/ucnv.h"
     28 #include "cstring.h"
     29 #include "ustr_imp.h"
     30 #include "ucnv_imp.h"
     31 #include "putilimp.h"
     32 
     33 U_CAPI int32_t U_EXPORT2
     34 ucnv_getDisplayName(const UConverter *cnv,
     35                     const char *displayLocale,
     36                     UChar *displayName, int32_t displayNameCapacity,
     37                     UErrorCode *pErrorCode) {
     38     UResourceBundle *rb;
     39     const UChar *name;
     40     int32_t length;
     41     UErrorCode localStatus = U_ZERO_ERROR;
     42 
     43     /* check arguments */
     44     if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
     45         return 0;
     46     }
     47 
     48     if(cnv==NULL || displayNameCapacity<0 || (displayNameCapacity>0 && displayName==NULL)) {
     49         *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
     50         return 0;
     51     }
     52 
     53     /* open the resource bundle and get the display name string */
     54     rb=ures_open(NULL, displayLocale, pErrorCode);
     55     if(U_FAILURE(*pErrorCode)) {
     56         return 0;
     57     }
     58 
     59     /* use the internal name as the key */
     60     name=ures_getStringByKey(rb, cnv->sharedData->staticData->name, &length, &localStatus);
     61     ures_close(rb);
     62 
     63     if(U_SUCCESS(localStatus)) {
     64         /* copy the string */
     65         if (*pErrorCode == U_ZERO_ERROR) {
     66             *pErrorCode = localStatus;
     67         }
     68         u_memcpy(displayName, name, uprv_min(length, displayNameCapacity)*U_SIZEOF_UCHAR);
     69     } else {
     70         /* convert the internal name into a Unicode string */
     71         length=(int32_t)uprv_strlen(cnv->sharedData->staticData->name);
     72         u_charsToUChars(cnv->sharedData->staticData->name, displayName, uprv_min(length, displayNameCapacity));
     73     }
     74     return u_terminateUChars(displayName, displayNameCapacity, length, pErrorCode);
     75 }
     76 
     77 #endif
     78 
     79 /*
     80  * Hey, Emacs, please set the following:
     81  *
     82  * Local Variables:
     83  * indent-tabs-mode: nil
     84  * End:
     85  *
     86  */
     87