113 lines
2.7 KiB
C++
113 lines
2.7 KiB
C++
/*
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**********************************************************************
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* Copyright (c) 2002, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* Author: Alan Liu
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* Created: November 11 2002
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* Since: ICU 2.4
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**********************************************************************
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*/
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#include "unicode/ustring.h"
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#include "unicode/strenum.h"
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#include "uenumimp.h"
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#include "ustrenum.h"
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#include "cstring.h"
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#include "cmemory.h"
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#define THIS(en) ((StringEnumeration*)(en->context))
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U_CDECL_BEGIN
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/**
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* Wrapper API to make StringEnumeration look like UEnumeration.
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*/
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static void U_CALLCONV
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ustrenum_close(UEnumeration* en) {
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delete THIS(en);
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uprv_free(en);
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}
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/**
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* Wrapper API to make StringEnumeration look like UEnumeration.
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*/
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static int32_t U_CALLCONV
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ustrenum_count(UEnumeration* en,
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UErrorCode* ec)
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{
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return THIS(en)->count(*ec);
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}
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/**
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* Wrapper API to make StringEnumeration look like UEnumeration.
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*/
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static const UChar* U_CALLCONV
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ustrenum_unext(UEnumeration* en,
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int32_t* resultLength,
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UErrorCode* ec)
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{
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return THIS(en)->unext(resultLength, *ec);
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}
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/**
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* Wrapper API to make StringEnumeration look like UEnumeration.
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*/
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static const char* U_CALLCONV
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ustrenum_next(UEnumeration* en,
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int32_t* resultLength,
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UErrorCode* ec)
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{
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return THIS(en)->next(resultLength, *ec);
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}
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/**
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* Wrapper API to make StringEnumeration look like UEnumeration.
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*/
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static void U_CALLCONV
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ustrenum_reset(UEnumeration* en,
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UErrorCode* ec)
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{
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THIS(en)->reset(*ec);
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}
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/**
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* Pseudo-vtable for UEnumeration wrapper around StringEnumeration.
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* The StringEnumeration pointer will be stored in 'context'.
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*/
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static const UEnumeration TEMPLATE = {
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NULL,
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NULL, // store StringEnumeration pointer here
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ustrenum_close,
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ustrenum_count,
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ustrenum_unext,
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ustrenum_next,
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ustrenum_reset
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};
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U_CDECL_END
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/**
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* Given a StringEnumeration, wrap it in a UEnumeration. The
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* StringEnumeration is adopted; after this call, the caller must not
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* delete it (regardless of error status).
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*/
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U_CAPI UEnumeration* U_EXPORT2
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uenum_openStringEnumeration(StringEnumeration* adopted, UErrorCode* ec) {
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UEnumeration* result = NULL;
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if (U_SUCCESS(*ec) && adopted != NULL) {
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result = (UEnumeration*) uprv_malloc(sizeof(UEnumeration));
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if (result == NULL) {
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*ec = U_MEMORY_ALLOCATION_ERROR;
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} else {
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uprv_memcpy(result, &TEMPLATE, sizeof(TEMPLATE));
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result->context = adopted;
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}
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}
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if (result == NULL) {
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delete adopted;
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}
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return result;
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}
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//eof
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