Move ICU headers from public/{common,i18n} to source/{common,i18n}

public/common/unicode/udata.h

Index: public/common/unicode/udata.h
diff --git a/public/common/unicode/udata.h b/public/common/unicode/udata.h
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-/*
-******************************************************************************
-*
-*   Copyright (C) 1999-2010, International Business Machines
-*   Corporation and others.  All Rights Reserved.
-*
-******************************************************************************
-*   file name:  udata.h
-*   encoding:   US-ASCII
-*   tab size:   8 (not used)
-*   indentation:4
-*
-*   created on: 1999oct25
-*   created by: Markus W. Scherer
-*/
-
-#ifndef __UDATA_H__
-#define __UDATA_H__
-
-#include "unicode/utypes.h"
-#include "unicode/localpointer.h"
-
-U_CDECL_BEGIN
-
-/**
- * \file
- * \brief C API: Data loading interface
- *
- * <h2>Information about data loading interface</h2>
- *
- * This API is used to find and efficiently load data for ICU and applications
- * using ICU. It provides an abstract interface that specifies a data type and
- * name to find and load the data. Normally this API is used by other ICU APIs
- * to load required data out of the ICU data library, but it can be used to
- * load data out of other places.
- *
- * See the User Guide Data Management chapter.
- */
- 
-#ifndef U_HIDE_INTERNAL_API
-/**
- * Character used to separate package names from tree names 
- * @internal ICU 3.0
- */
-#define U_TREE_SEPARATOR '-'
-
-/**
- * String used to separate package names from tree names 
- * @internal ICU 3.0
- */
-#define U_TREE_SEPARATOR_STRING "-"
-
-/**
- * Character used to separate parts of entry names
- * @internal ICU 3.0
- */
-#define U_TREE_ENTRY_SEP_CHAR '/'
-
-/**
- * String used to separate parts of entry names
- * @internal ICU 3.0
- */
-#define U_TREE_ENTRY_SEP_STRING "/"
-
-/**
- * Alias for standard ICU data 
- * @internal ICU 3.0
- */
-#define U_ICUDATA_ALIAS "ICUDATA"
-
-#endif /* U_HIDE_INTERNAL_API */
-
-/**
- * UDataInfo contains the properties about the requested data.
- * This is meta data.
- *
- * <p>This structure may grow in the future, indicated by the
- * <code>size</code> field.</p>
- *
- * <p>The platform data property fields help determine if a data
- * file can be efficiently used on a given machine.
- * The particular fields are of importance only if the data
- * is affected by the properties - if there is integer data
- * with word sizes > 1 byte, char* text, or UChar* text.</p>
- *
- * <p>The implementation for the <code>udata_open[Choice]()</code>
- * functions may reject data based on the value in <code>isBigEndian</code>.
- * No other field is used by the <code>udata</code> API implementation.</p>
- *
- * <p>The <code>dataFormat</code> may be used to identify
- * the kind of data, e.g. a converter table.</p>
- *
- * <p>The <code>formatVersion</code> field should be used to
- * make sure that the format can be interpreted.
- * I may be a good idea to check only for the one or two highest
- * of the version elements to allow the data memory to
- * get more or somewhat rearranged contents, for as long
- * as the using code can still interpret the older contents.</p>
- *
- * <p>The <code>dataVersion</code> field is intended to be a
- * common place to store the source version of the data;
- * for data from the Unicode character database, this could
- * reflect the Unicode version.</p>
- * @stable ICU 2.0
- */
-typedef struct {
-    /** sizeof(UDataInfo)
-     *  @stable ICU 2.0 */
-    uint16_t size;
-
-    /** unused, set to 0 
-     *  @stable ICU 2.0*/
-    uint16_t reservedWord;
-
-    /* platform data properties */
-    /** 0 for little-endian machine, 1 for big-endian
-     *  @stable ICU 2.0 */
-    uint8_t isBigEndian;
-
-    /** see U_CHARSET_FAMILY values in utypes.h 
-     *  @stable ICU 2.0*/
-    uint8_t charsetFamily;
-
-    /** sizeof(UChar), one of { 1, 2, 4 } 
-     *  @stable ICU 2.0*/
-    uint8_t sizeofUChar;
-
-    /** unused, set to 0 
-     *  @stable ICU 2.0*/
-    uint8_t reservedByte;
-
-    /** data format identifier 
-     *  @stable ICU 2.0*/
-    uint8_t dataFormat[4];
-
-    /** versions: [0] major [1] minor [2] milli [3] micro 
-     *  @stable ICU 2.0*/
-    uint8_t formatVersion[4];
-
-    /** versions: [0] major [1] minor [2] milli [3] micro 
-     *  @stable ICU 2.0*/
-    uint8_t dataVersion[4];
-} UDataInfo;
-
-/* API for reading data -----------------------------------------------------*/
-
-/**
- * Forward declaration of the data memory type.
- * @stable ICU 2.0
- */
-typedef struct UDataMemory UDataMemory;
-
-/**
- * Callback function for udata_openChoice().
- * @param context parameter passed into <code>udata_openChoice()</code>.
- * @param type The type of the data as passed into <code>udata_openChoice()</code>.
- *             It may be <code>NULL</code>.
- * @param name The name of the data as passed into <code>udata_openChoice()</code>.
- * @param pInfo A pointer to the <code>UDataInfo</code> structure
- *              of data that has been loaded and will be returned
- *              by <code>udata_openChoice()</code> if this function
- *              returns <code>TRUE</code>.
- * @return TRUE if the current data memory is acceptable
- * @stable ICU 2.0
- */
-typedef UBool U_CALLCONV
-UDataMemoryIsAcceptable(void *context,
-                        const char *type, const char *name,
-                        const UDataInfo *pInfo);
-
-
-/**
- * Convenience function.
- * This function works the same as <code>udata_openChoice</code>
- * except that any data that matches the type and name
- * is assumed to be acceptable.
- * @param path Specifies an absolute path and/or a basename for the
- *             finding of the data in the file system.
- *             <code>NULL</code> for ICU data.
- * @param type A string that specifies the type of data to be loaded.
- *             For example, resource bundles are loaded with type "res",
- *             conversion tables with type "cnv".
- *             This may be <code>NULL</code> or empty.
- * @param name A string that specifies the name of the data.
- * @param pErrorCode An ICU UErrorCode parameter. It must not be <code>NULL</code>.
- * @return A pointer (handle) to a data memory object, or <code>NULL</code>
- *         if an error occurs. Call <code>udata_getMemory()</code>
- *         to get a pointer to the actual data.
- *
- * @see udata_openChoice
- * @stable ICU 2.0
- */
-U_STABLE UDataMemory * U_EXPORT2
-udata_open(const char *path, const char *type, const char *name,
-           UErrorCode *pErrorCode);
-
-/**
- * Data loading function.
- * This function is used to find and load efficiently data for
- * ICU and applications using ICU.
- * It provides an abstract interface that allows to specify a data
- * type and name to find and load the data.
- *
- * <p>The implementation depends on platform properties and user preferences
- * and may involve loading shared libraries (DLLs), mapping
- * files into memory, or fopen()/fread() files.
- * It may also involve using static memory or database queries etc.
- * Several or all data items may be combined into one entity
- * (DLL, memory-mappable file).</p>
- *
- * <p>The data is always preceded by a header that includes
- * a <code>UDataInfo</code> structure.
- * The caller's <code>isAcceptable()</code> function is called to make
- * sure that the data is useful. It may be called several times if it
- * rejects the data and there is more than one location with data
- * matching the type and name.</p>
- *
- * <p>If <code>path==NULL</code>, then ICU data is loaded.
- * Otherwise, it is separated into a basename and a basename-less directory string.
- * The basename is used as the data package name, and the directory is
- * logically prepended to the ICU data directory string.</p>
- *
- * <p>For details about ICU data loading see the User Guide
- * Data Management chapter. (http://icu-project.org/userguide/icudata.html)</p>
- *
- * @param path Specifies an absolute path and/or a basename for the
- *             finding of the data in the file system.
- *             <code>NULL</code> for ICU data.
- * @param type A string that specifies the type of data to be loaded.
- *             For example, resource bundles are loaded with type "res",
- *             conversion tables with type "cnv".
- *             This may be <code>NULL</code> or empty.
- * @param name A string that specifies the name of the data.
- * @param isAcceptable This function is called to verify that loaded data
- *                     is useful for the client code. If it returns FALSE
- *                     for all data items, then <code>udata_openChoice()</code>
- *                     will return with an error.
- * @param context Arbitrary parameter to be passed into isAcceptable.
- * @param pErrorCode An ICU UErrorCode parameter. It must not be <code>NULL</code>.
- * @return A pointer (handle) to a data memory object, or <code>NULL</code>
- *         if an error occurs. Call <code>udata_getMemory()</code>
- *         to get a pointer to the actual data.
- * @stable ICU 2.0
- */
-U_STABLE UDataMemory * U_EXPORT2
-udata_openChoice(const char *path, const char *type, const char *name,
-                 UDataMemoryIsAcceptable *isAcceptable, void *context,
-                 UErrorCode *pErrorCode);
-
-/**
- * Close the data memory.
- * This function must be called to allow the system to
- * release resources associated with this data memory.
- * @param pData The pointer to data memory object
- * @stable ICU 2.0
- */
-U_STABLE void U_EXPORT2
-udata_close(UDataMemory *pData);
-
-#if U_SHOW_CPLUSPLUS_API
-
-U_NAMESPACE_BEGIN
-
-/**
- * \class LocalUDataMemoryPointer
- * "Smart pointer" class, closes a UDataMemory via udata_close().
- * For most methods see the LocalPointerBase base class.
- *
- * @see LocalPointerBase
- * @see LocalPointer
- * @stable ICU 4.4
- */
-U_DEFINE_LOCAL_OPEN_POINTER(LocalUDataMemoryPointer, UDataMemory, udata_close);
-
-U_NAMESPACE_END
-
-#endif
-
-/**
- * Get the pointer to the actual data inside the data memory.
- * The data is read-only.
- * @param pData The pointer to data memory object
- * @stable ICU 2.0
- */
-U_STABLE const void * U_EXPORT2
-udata_getMemory(UDataMemory *pData);
-
-/**
- * Get the information from the data memory header.
- * This allows to get access to the header containing
- * platform data properties etc. which is not part of
- * the data itself and can therefore not be accessed
- * via the pointer that <code>udata_getMemory()</code> returns.
- *
- * @param pData pointer to the data memory object
- * @param pInfo pointer to a UDataInfo object;
- *              its <code>size</code> field must be set correctly,
- *              typically to <code>sizeof(UDataInfo)</code>.
- *
- * <code>*pInfo</code> will be filled with the UDataInfo structure
- * in the data memory object. If this structure is smaller than
- * <code>pInfo->size</code>, then the <code>size</code> will be
- * adjusted and only part of the structure will be filled.
- * @stable ICU 2.0
- */
-U_STABLE void U_EXPORT2
-udata_getInfo(UDataMemory *pData, UDataInfo *pInfo);
-
-/**
- * This function bypasses the normal ICU data loading process and
- * allows you to force ICU's system data to come out of a user-specified
- * area in memory.
- *
- * The format of this data is that of the icu common data file, as is
- * generated by the pkgdata tool with mode=common or mode=dll.
- * You can read in a whole common mode file and pass the address to the start of the
- * data, or (with the appropriate link options) pass in the pointer to
- * the data that has been loaded from a dll by the operating system,
- * as shown in this code:
- *
- *       extern const char U_IMPORT U_ICUDATA_ENTRY_POINT [];
- *        // U_ICUDATA_ENTRY_POINT is same as entry point specified to pkgdata tool
- *       UErrorCode  status = U_ZERO_ERROR;
- *
- *       udata_setCommonData(&U_ICUDATA_ENTRY_POINT, &status);
- *
- * It is important that the declaration be as above. The entry point
- * must not be declared as an extern void*.
- *
- * Starting with ICU 4.4, it is possible to set several data packages,
- * one per call to this function.
- * udata_open() will look for data in the multiple data packages in the order
- * in which they were set.
- * The position of the linked-in or default-name ICU .data package in the
- * search list depends on when the first data item is loaded that is not contained
- * in the already explicitly set packages.
- * If data was loaded implicitly before the first call to this function
- * (for example, via opening a converter, constructing a UnicodeString
- * from default-codepage data, using formatting or collation APIs, etc.),
- * then the default data will be first in the list.
- *
- * This function has no effect on application (non ICU) data.  See udata_setAppData()
- * for similar functionality for application data.
- *
- * @param data pointer to ICU common data
- * @param err outgoing error status <code>U_USING_DEFAULT_WARNING, U_UNSUPPORTED_ERROR</code>
- * @stable ICU 2.0
- */
-U_STABLE void U_EXPORT2
-udata_setCommonData(const void *data, UErrorCode *err);
-
-
-/**
- * This function bypasses the normal ICU data loading process for application-specific
- * data and allows you to force the it to come out of a user-specified
- * pointer.
- *
- * The format of this data is that of the icu common data file, like 'icudt26l.dat'
- * or the corresponding shared library (DLL) file.
- * The application must read in or otherwise construct an image of the data and then
- * pass the address of it to this function.
- *
- *
- * Warning:  setAppData will set a U_USING_DEFAULT_WARNING code if
- *           data with the specifed path that has already been opened, or
- *           if setAppData with the same path has already been called.
- *           Any such calls to setAppData will have no effect.
- *
- *
- * @param packageName the package name by which the application will refer
- *             to (open) this data
- * @param data pointer to the data
- * @param err outgoing error status <code>U_USING_DEFAULT_WARNING, U_UNSUPPORTED_ERROR</code>
- * @see udata_setCommonData
- * @stable ICU 2.0
- */
-U_STABLE void U_EXPORT2
-udata_setAppData(const char *packageName, const void *data, UErrorCode *err);
-
-/**
- * Possible settings for udata_setFileAccess()
- * @see udata_setFileAccess
- * @stable ICU 3.4
- */
-typedef enum UDataFileAccess {
-    /** ICU looks for data in single files first, then in packages. (default) */
-    UDATA_FILES_FIRST,
-    /** ICU only loads data from packages, not from single files. */
-    UDATA_ONLY_PACKAGES,
-    /** ICU loads data from packages first, and only from single files
-        if the data cannot be found in a package. */
-    UDATA_PACKAGES_FIRST,
-    /** ICU does not access the file system for data loading. */
-    UDATA_NO_FILES,
-    /** An alias for the default access mode. */
-    UDATA_DEFAULT_ACCESS = UDATA_FILES_FIRST,
-    UDATA_FILE_ACCESS_COUNT
-} UDataFileAccess;
-
-/**
- * This function may be called to control how ICU loads data. It must be called
- * before any ICU data is loaded, including application data loaded with 
- * ures/ResourceBundle or udata APIs. This function is not multithread safe.  
- * The results of calling it while other threads are loading data are undefined.
- * @param access The type of file access to be used
- * @param status Error code.
- * @see UDataFileAccess
- * @stable ICU 3.4 
- */
-U_STABLE void U_EXPORT2
-udata_setFileAccess(UDataFileAccess access, UErrorCode *status);
-
-U_CDECL_END
-
-#endif