projects / apple / icu.git / blame
| Commit | Line | Data |
|---|---|---|
| b75a7d8f A |
1 | /* |
| 2 | ********************************************************************** | |
| 3 | * Copyright (c) 2002, International Business Machines | |
| 4 | * Corporation and others. All Rights Reserved. | |
| 5 | ********************************************************************** | |
| 6 | * Author: Alan Liu | |
| 7 | * Created: November 11 2002 | |
| 8 | * Since: ICU 2.4 | |
| 9 | ********************************************************************** | |
| 10 | */ | |
| 11 | #include "unicode/ustring.h" | |
| 12 | #include "unicode/strenum.h" | |
| 13 | #include "uenumimp.h" | |
| 14 | #include "ustrenum.h" | |
| 15 | #include "cstring.h" | |
| 16 | #include "cmemory.h" | |
| 17 | ||
| 18 | #define THIS(en) ((StringEnumeration*)(en->context)) | |
| 19 | ||
| 20 | U_CDECL_BEGIN | |
| 21 | ||
| 22 | /** | |
| 23 | * Wrapper API to make StringEnumeration look like UEnumeration. | |
| 24 | */ | |
| 25 | static void U_CALLCONV | |
| 26 | ustrenum_close(UEnumeration* en) { | |
| 27 | delete THIS(en); | |
| 28 | uprv_free(en); | |
| 29 | } | |
| 30 | ||
| 31 | /** | |
| 32 | * Wrapper API to make StringEnumeration look like UEnumeration. | |
| 33 | */ | |
| 34 | static int32_t U_CALLCONV | |
| 35 | ustrenum_count(UEnumeration* en, | |
| 36 | UErrorCode* ec) | |
| 37 | { | |
| 38 | return THIS(en)->count(*ec); | |
| 39 | } | |
| 40 | ||
| 41 | /** | |
| 42 | * Wrapper API to make StringEnumeration look like UEnumeration. | |
| 43 | */ | |
| 44 | static const UChar* U_CALLCONV | |
| 45 | ustrenum_unext(UEnumeration* en, | |
| 46 | int32_t* resultLength, | |
| 47 | UErrorCode* ec) | |
| 48 | { | |
| 49 | return THIS(en)->unext(resultLength, *ec); | |
| 50 | } | |
| 51 | ||
| 52 | /** | |
| 53 | * Wrapper API to make StringEnumeration look like UEnumeration. | |
| 54 | */ | |
| 55 | static const char* U_CALLCONV | |
| 56 | ustrenum_next(UEnumeration* en, | |
| 57 | int32_t* resultLength, | |
| 58 | UErrorCode* ec) | |
| 59 | { | |
| 60 | return THIS(en)->next(resultLength, *ec); | |
| 61 | } | |
| 62 | ||
| 63 | /** | |
| 64 | * Wrapper API to make StringEnumeration look like UEnumeration. | |
| 65 | */ | |
| 66 | static void U_CALLCONV | |
| 67 | ustrenum_reset(UEnumeration* en, | |
| 68 | UErrorCode* ec) | |
| 69 | { | |
| 70 | THIS(en)->reset(*ec); | |
| 71 | } | |
| 72 | ||
| 73 | /** | |
| 74 | * Pseudo-vtable for UEnumeration wrapper around StringEnumeration. | |
| 75 | * The StringEnumeration pointer will be stored in 'context'. | |
| 76 | */ | |
| 77 | static const UEnumeration TEMPLATE = { | |
| 78 | NULL, | |
| 79 | NULL, // store StringEnumeration pointer here | |
| 80 | ustrenum_close, | |
| 81 | ustrenum_count, | |
| 82 | ustrenum_unext, | |
| 83 | ustrenum_next, | |
| 84 | ustrenum_reset | |
| 85 | }; | |
| 86 | ||
| 87 | U_CDECL_END | |
| 88 | ||
| 89 | /** | |
| 90 | * Given a StringEnumeration, wrap it in a UEnumeration. The | |
| 91 | * StringEnumeration is adopted; after this call, the caller must not | |
| 92 | * delete it (regardless of error status). | |
| 93 | */ | |
| 94 | U_CAPI UEnumeration* U_EXPORT2 | |
| 95 | uenum_openStringEnumeration(StringEnumeration* adopted, UErrorCode* ec) { | |
| 96 | UEnumeration* result = NULL; | |
| 97 | if (U_SUCCESS(*ec) && adopted != NULL) { | |
| 98 | result = (UEnumeration*) uprv_malloc(sizeof(UEnumeration)); | |
| 99 | if (result == NULL) { | |
| 100 | *ec = U_MEMORY_ALLOCATION_ERROR; | |
| 101 | } else { | |
| 102 | uprv_memcpy(result, &TEMPLATE, sizeof(TEMPLATE)); | |
| 103 | result->context = adopted; | |
| 104 | } | |
| 105 | } | |
| 106 | if (result == NULL) { | |
| 107 | delete adopted; | |
| 108 | } | |
| 109 | return result; | |
| 110 | } | |
| 111 | ||
| 112 | //eof |