chromium/third_party/icu/source/common/ucnv_bld.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
*   Copyright (C) 1999-2015 International Business Machines
*   Corporation and others.  All Rights Reserved.
**********************************************************************
*
*
*  ucnv_bld.h:
*  Contains internal data structure definitions
* Created by Bertrand A. Damiba
*
*   Change history:
*
*   06/29/2000  helena      Major rewrite of the callback APIs.
*/

#ifndef UCNV_BLD_H
#define UCNV_BLD_H

#include "unicode/utypes.h"

#if !UCONFIG_NO_CONVERSION

#include "unicode/ucnv.h"
#include "unicode/ucnv_err.h"
#include "unicode/utf16.h"
#include "ucnv_cnv.h"
#include "ucnvmbcs.h"
#include "ucnv_ext.h"
#include "udataswp.h"

/* size of the overflow buffers in UConverter, enough for escaping callbacks */
#define UCNV_ERROR_BUFFER_LENGTH

/* at most 4 bytes per substitution character (part of .cnv file format! see UConverterStaticData) */
#define UCNV_MAX_SUBCHAR_LEN

/* at most 8 bytes per character in toUBytes[] (UTF-8 uses up to 6) */
#define UCNV_MAX_CHAR_LEN

/* converter options bits */
#define UCNV_OPTION_VERSION
#define UCNV_OPTION_SWAP_LFNL

#define UCNV_GET_VERSION(cnv)

U_CDECL_BEGIN /* We must declare the following as 'extern "C"' so that if ucnv
                 itself is compiled under C++, the linkage of the funcptrs will
                 work.
              */

UConverterTable;

UConverterTable;

struct UConverterImpl;
UConverterImpl;

/** values for the unicodeMask */
#define UCNV_HAS_SUPPLEMENTARY
#define UCNV_HAS_SURROGATES

UConverterStaticData;

/*
 * Defines the UConverterSharedData struct,
 * the immutable, shared part of UConverter.
 */
struct UConverterSharedData {};

/** UConverterSharedData initializer for static, non-reference-counted converters. */
#define UCNV_IMMUTABLE_SHARED_DATA_INITIALIZER(pStaticData, pImpl)

/* Defines a UConverter, the lightweight mutable part the user sees */

struct UConverter {};

U_CDECL_END /* end of UConverter */

#define CONVERTER_FILE_EXTENSION


/**
 * Return the number of all converter names.
 * @param pErrorCode The error code
 * @return the number of all converter names
 */
U_CFUNC uint16_t
ucnv_bld_countAvailableConverters(UErrorCode *pErrorCode);

/**
 * Return the (n)th converter name in mixed case, or NULL
 * if there is none (typically, if the data cannot be loaded).
 * 0<=index<ucnv_io_countAvailableConverters().
 * @param n The number specifies which converter name to get
 * @param pErrorCode The error code
 * @return the (n)th converter name in mixed case, or NULL if there is none.
 */
U_CFUNC const char *
ucnv_bld_getAvailableConverter(uint16_t n, UErrorCode *pErrorCode);

/**
 * Load a non-algorithmic converter.
 * If pkg==NULL, then this function must be called inside umtx_lock(&cnvCacheMutex).
 */
U_CAPI UConverterSharedData *
ucnv_load(UConverterLoadArgs *pArgs, UErrorCode *err);

/**
 * Unload a non-algorithmic converter.
 * It must be sharedData->isReferenceCounted
 * and this function must be called inside umtx_lock(&cnvCacheMutex).
 */
U_CAPI void
ucnv_unload(UConverterSharedData *sharedData);

/**
 * Swap ICU .cnv conversion tables. See udataswp.h.
 * @internal
 */
U_CAPI int32_t U_EXPORT2
ucnv_swap(const UDataSwapper *ds,
          const void *inData, int32_t length, void *outData,
          UErrorCode *pErrorCode);

U_CAPI void U_EXPORT2
ucnv_enableCleanup(void);

#endif

#endif /* _UCNV_BLD */