| /* |
| ******************************************************************************* |
| * |
| * Copyright (C) 2002, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| * |
| ******************************************************************************* |
| * file name: uenum.c |
| * encoding: US-ASCII |
| * tab size: 8 (not used) |
| * indentation:2 |
| * |
| * created on: 2002jul08 |
| * created by: Vladimir Weinstein |
| */ |
| |
| #include "uenumimp.h" |
| #include "cmemory.h" |
| |
| U_CAPI void U_EXPORT2 |
| uenum_close(UEnumeration* en) |
| { |
| if (en) { |
| if (en->close != NULL) { |
| if (en->baseContext) { |
| uprv_free(en->baseContext); |
| } |
| en->close(en); |
| } else { /* this seems dangerous, but we better kill the object */ |
| uprv_free(en); |
| } |
| } |
| } |
| |
| U_CAPI int32_t U_EXPORT2 |
| uenum_count(UEnumeration* en, UErrorCode* status) |
| { |
| if (!en || U_FAILURE(*status)) { |
| return -1; |
| } |
| if (en->count != NULL) { |
| return en->count(en, status); |
| } else { |
| *status = U_UNSUPPORTED_ERROR; |
| return -1; |
| } |
| } |
| |
| /* Don't call this directly. Only uenum_unext should be calling this. */ |
| U_CAPI const UChar* U_EXPORT2 |
| uenum_unextDefault(UEnumeration* en, |
| int32_t* resultLength, |
| UErrorCode* status) |
| { |
| if (en->next != NULL) { |
| const char *tempCharVal = en->next(en, resultLength, status); |
| UChar *tempUCharVal; |
| |
| if (en->baseContext) { |
| uprv_free(en->baseContext); |
| } |
| tempUCharVal = uprv_malloc((*resultLength+1) * sizeof(UChar)); |
| if (!tempUCharVal) { |
| *status = U_MEMORY_ALLOCATION_ERROR; |
| } |
| u_charsToUChars(tempCharVal, tempUCharVal, *resultLength + 1); |
| en->baseContext = tempUCharVal; |
| return tempUCharVal; |
| } else { |
| *status = U_UNSUPPORTED_ERROR; |
| return NULL; |
| } |
| } |
| |
| U_CAPI const UChar* U_EXPORT2 |
| uenum_unext(UEnumeration* en, |
| int32_t* resultLength, |
| UErrorCode* status) |
| { |
| if (!en || U_FAILURE(*status)) { |
| return NULL; |
| } |
| if (en->uNext != NULL) { |
| return en->uNext(en, resultLength, status); |
| } else { |
| *status = U_UNSUPPORTED_ERROR; |
| return NULL; |
| } |
| } |
| |
| U_CAPI const char* U_EXPORT2 |
| uenum_next(UEnumeration* en, |
| int32_t* resultLength, |
| UErrorCode* status) |
| { |
| if (!en || U_FAILURE(*status)) { |
| return NULL; |
| } |
| if (en->next != NULL) { |
| return en->next(en, resultLength, status); |
| } else { |
| *status = U_UNSUPPORTED_ERROR; |
| return NULL; |
| } |
| } |
| |
| U_CAPI void U_EXPORT2 |
| uenum_reset(UEnumeration* en, UErrorCode* status) |
| { |
| if (!en || U_FAILURE(*status)) { |
| return; |
| } |
| if (en->reset != NULL) { |
| en->reset(en, status); |
| } else { |
| *status = U_UNSUPPORTED_ERROR; |
| } |
| } |