Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 397 insertions, 0 deletions

diff --git a/intl/icu/source/common/uresimp.h b/intl/icu/source/common/uresimp.h
new file mode 100644
index 0000000000..8a1679717e
--- /dev/null
+++ b/intl/icu/source/common/uresimp.h
@@ -0,0 +1,397 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+*   Copyright (C) 2000-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*/
+
+#ifndef URESIMP_H
+#define URESIMP_H
+
+#include "unicode/ures.h"
+#include "unicode/utypes.h"
+
+#include "uresdata.h"
+
+#define kRootLocaleName         "root"
+#define kPoolBundleName         "pool"
+
+/*
+ The default minor version and the version separator must be exactly one
+ character long.
+*/
+
+#define kDefaultMinorVersion    "0"
+#define kVersionSeparator       "."
+#define kVersionTag             "Version"
+
+#define MAGIC1 19700503
+#define MAGIC2 19641227
+
+#define URES_MAX_ALIAS_LEVEL 256
+
+#define EMPTY_SET 0x2205
+
+struct UResourceDataEntry;
+typedef struct UResourceDataEntry UResourceDataEntry;
+
+/*
+ * Note: If we wanted to make this structure smaller, then we could try
+ * to use one UResourceDataEntry pointer for fAlias and fPool, with a separate
+ * flag to distinguish whether this struct is for a real bundle with a pool,
+ * or for an alias entry for which we won't use the pool after loading.
+ */
+struct UResourceDataEntry {
+    char *fName; /* name of the locale for bundle - still to decide whether it is original or fallback */
+    char *fPath; /* path to bundle - used for distinguishing between resources with the same name */
+    UResourceDataEntry *fParent; /*next resource in fallback chain*/
+    UResourceDataEntry *fAlias;
+    UResourceDataEntry *fPool;
+    ResourceData fData; /* data for low level access */
+    char fNameBuffer[3]; /* A small buffer of free space for fName. The free space is due to struct padding. */
+    uint32_t fCountExisting; /* how much is this resource used */
+    UErrorCode fBogus;
+    /* int32_t fHashKey;*/ /* for faster access in the hashtable */
+};
+
+#define RES_BUFSIZE 64
+#define RES_PATH_SEPARATOR   '/'
+#define RES_PATH_SEPARATOR_S   "/"
+
+U_CAPI void U_EXPORT2 ures_initStackObject(UResourceBundle* resB);
+
+#ifdef __cplusplus
+
+struct UResourceBundle {
+    const char *fKey; /*tag*/
+    /**
+     * The dataEntry for the actual locale in which this item lives.
+     * Used for accessing the item's data.
+     * Non-const pointer for reference counting via entryIncrease().
+     */
+    UResourceDataEntry *fData; /*for low-level access*/
+    char *fVersion;
+    /**
+     * The dataEntry for the valid locale.
+     * Used for /LOCALE/path alias resolution that starts back from the valid locale,
+     * rather than from the actual locale of this item which might live in
+     * an ancestor bundle.
+     */
+    UResourceDataEntry *fValidLocaleDataEntry;
+    char *fResPath; /* full path to the resource: "zh_TW/CollationElements/Sequence" */
+    char fResBuf[RES_BUFSIZE];
+    int32_t fResPathLen;
+    Resource fRes;
+    UBool fHasFallback;
+    UBool fIsTopLevel;
+    uint32_t fMagic1;   /* For determining if it's a stack object */
+    uint32_t fMagic2;   /* For determining if it's a stack object */
+    int32_t fIndex;
+    int32_t fSize;
+
+    inline const ResourceData &getResData() const { return fData->fData; }
+};
+
+U_NAMESPACE_BEGIN
+
+/**
+ * \class StackUResourceBundle
+ * "Smart pointer" like class, closes a UResourceBundle via ures_close().
+ *
+ * This code:
+ *
+ *   StackUResourceBundle bundle;
+ *   foo(bundle.getAlias());
+ *
+ * Is equivalent to this code:
+ *
+ *   UResourceBundle bundle;
+ *   ures_initStackObject(&bundle);
+ *   foo(&bundle);
+ *   ures_close(&bundle);
+ *
+ * @see LocalUResourceBundlePointer
+ * @internal
+ */
+class U_COMMON_API StackUResourceBundle {
+public:
+    // No heap allocation. Use only on the stack.
+    static void* U_EXPORT2 operator new(size_t) noexcept = delete;
+    static void* U_EXPORT2 operator new[](size_t) noexcept = delete;
+#if U_HAVE_PLACEMENT_NEW
+    static void* U_EXPORT2 operator new(size_t, void*) noexcept = delete;
+#endif
+
+    StackUResourceBundle();
+    ~StackUResourceBundle();
+
+    UResourceBundle* getAlias() { return &bundle; }
+
+    UResourceBundle& ref() { return bundle; }
+    const UResourceBundle& ref() const { return bundle; }
+
+    StackUResourceBundle(const StackUResourceBundle&) = delete;
+    StackUResourceBundle& operator=(const StackUResourceBundle&) = delete;
+
+    StackUResourceBundle(StackUResourceBundle&&) = delete;
+    StackUResourceBundle& operator=(StackUResourceBundle&&) = delete;
+
+private:
+    UResourceBundle bundle;
+};
+
+U_NAMESPACE_END
+
+#endif  /* __cplusplus */
+
+/**
+ * Opens a resource bundle for the locale;
+ * if there is not even a base language bundle, then loads the root bundle;
+ * never falls back to the default locale.
+ *
+ * This is used for algorithms that have good pan-Unicode default behavior,
+ * such as case mappings, collation, and segmentation (BreakIterator).
+ */
+U_CAPI UResourceBundle* U_EXPORT2
+ures_openNoDefault(const char* path, const char* localeID, UErrorCode* status);
+
+/* Some getters used by the copy constructor */
+U_CFUNC const char* ures_getName(const UResourceBundle* resB);
+#ifdef URES_DEBUG
+U_CFUNC const char* ures_getPath(const UResourceBundle* resB);
+/**
+ * If anything was in the RB cache, dump it to the screen.
+ * @return true if there was anything into the cache
+ */
+U_CAPI UBool U_EXPORT2 ures_dumpCacheContents(void);
+#endif
+
+/* Candidates for export */
+U_CFUNC UResourceBundle *ures_copyResb(UResourceBundle *r, const UResourceBundle *original, UErrorCode *status);
+
+/**
+ * Returns a resource that can be located using the pathToResource argument. One needs optional package, locale
+ * and path inside the locale, for example: "/myData/en/zoneStrings/3". Keys and indexes are supported. Keys
+ * need to reference data in named structures, while indexes can reference both named and anonymous resources.
+ * Features a fill-in parameter. 
+ * 
+ * Note, this function does NOT have a syntax for specifying items within a tree.  May want to consider a
+ * syntax that delineates between package/tree and resource.  
+ *
+ * @param pathToResource    a path that will lead to the requested resource
+ * @param fillIn            if NULL a new UResourceBundle struct is allocated and must be deleted by the caller.
+ *                          Alternatively, you can supply a struct to be filled by this function.
+ * @param status            fills in the outgoing error code.
+ * @return                  a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
+ */
+U_CAPI UResourceBundle* U_EXPORT2
+ures_findResource(const char* pathToResource, 
+                  UResourceBundle *fillIn, UErrorCode *status); 
+
+/**
+ * Returns a sub resource that can be located using the pathToResource argument. One needs a path inside 
+ * the supplied resource, for example, if you have "en_US" resource bundle opened, you might ask for
+ * "zoneStrings/3". Keys and indexes are supported. Keys
+ * need to reference data in named structures, while indexes can reference both 
+ * named and anonymous resources.
+ * Features a fill-in parameter. 
+ *
+ * @param resourceBundle    a resource
+ * @param pathToResource    a path that will lead to the requested resource
+ * @param fillIn            if NULL a new UResourceBundle struct is allocated and must be deleted by the caller.
+ *                          Alternatively, you can supply a struct to be filled by this function.
+ * @param status            fills in the outgoing error code.
+ * @return                  a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
+ */
+U_CAPI UResourceBundle* U_EXPORT2
+ures_findSubResource(const UResourceBundle *resB, 
+                     char* pathToResource, 
+                     UResourceBundle *fillIn, UErrorCode *status);
+
+/**
+ * Returns a functionally equivalent locale (considering keywords) for the specified keyword.
+ * @param result fillin for the equivalent locale
+ * @param resultCapacity capacity of the fillin buffer
+ * @param path path to the tree, or NULL for ICU data
+ * @param resName top level resource. Example: "collations"
+ * @param keyword locale keyword. Example: "collation"
+ * @param locid The requested locale
+ * @param isAvailable If non-null, pointer to fillin parameter that indicates whether the 
+ * requested locale was available. The locale is defined as 'available' if it physically 
+ * exists within the specified tree.
+ * @param omitDefault if true, omit keyword and value if default. 'de_DE\@collation=standard' -> 'de_DE'
+ * @param status error code
+ * @return  the actual buffer size needed for the full locale.  If it's greater 
+ * than resultCapacity, the returned full name will be truncated and an error code will be returned.
+ */
+U_CAPI int32_t U_EXPORT2
+ures_getFunctionalEquivalent(char *result, int32_t resultCapacity, 
+                             const char *path, const char *resName, const char *keyword, const char *locid,
+                             UBool *isAvailable, UBool omitDefault, UErrorCode *status);
+
+/**
+ * Given a tree path and keyword, return a string enumeration of all possible values for that keyword.
+ * @param path path to the tree, or NULL for ICU data
+ * @param keyword a particular keyword to consider, must match a top level resource name 
+ * within the tree.
+ * @param status error code
+ */
+U_CAPI UEnumeration* U_EXPORT2
+ures_getKeywordValues(const char *path, const char *keyword, UErrorCode *status);
+
+
+/**
+ * Get a resource with multi-level fallback. Normally only the top level resources will
+ * fallback to its parent. This performs fallback on subresources. For example, when a table
+ * is defined in a resource bundle and a parent resource bundle, normally no fallback occurs
+ * on the sub-resources because the table is defined in the current resource bundle, but this
+ * function can perform fallback on the sub-resources of the table.
+ * @param resB              a resource
+ * @param inKey             a key associated with the requested resource
+ * @param fillIn            if NULL a new UResourceBundle struct is allocated and must be deleted by the caller.
+ *                          Alternatively, you can supply a struct to be filled by this function.
+ * @param status: fills in the outgoing error code
+ *                could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found
+ *                could be a non-failing error 
+ *                e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT>
+ * @return                  a pointer to a UResourceBundle struct. If fill in param was NULL, caller must delete it
+ */
+U_CAPI UResourceBundle* U_EXPORT2 
+ures_getByKeyWithFallback(const UResourceBundle *resB, 
+                          const char* inKey, 
+                          UResourceBundle *fillIn, 
+                          UErrorCode *status);
+
+/**
+ * Get a String with multi-level fallback. Normally only the top level resources will
+ * fallback to its parent. This performs fallback on subresources. For example, when a table
+ * is defined in a resource bundle and a parent resource bundle, normally no fallback occurs
+ * on the sub-resources because the table is defined in the current resource bundle, but this
+ * function can perform fallback on the sub-resources of the table.
+ * @param resB              a resource
+ * @param inKey             a key associated with the requested resource
+ * @param len               if not NULL, used to return the length of the string
+ * @param status: fills in the outgoing error code
+ *                could be <TT>U_MISSING_RESOURCE_ERROR</TT> if the key is not found
+ *                could be a non-failing error 
+ *                e.g.: <TT>U_USING_FALLBACK_WARNING</TT>,<TT>U_USING_DEFAULT_WARNING </TT>
+ * @return returns a pointer to a zero-terminated UChar array which lives in a
+ *         memory mapped/DLL file.
+ */
+U_CAPI const UChar* U_EXPORT2 
+ures_getStringByKeyWithFallback(const UResourceBundle *resB, 
+                          const char* inKey,  
+                          int32_t* len,
+                          UErrorCode *status);
+
+#ifdef __cplusplus
+
+U_CAPI void U_EXPORT2
+ures_getValueWithFallback(const UResourceBundle *bundle, const char *path,
+                          UResourceBundle *tempFillIn,
+                          icu::ResourceDataValue &value, UErrorCode &errorCode);
+
+/**
+ * Locates the resource specified by `path` in the resource bundle specified by `bundle` (performing any
+ * necessary fallback and following any aliases) and calls the specified `sink`'s `put()` method with that
+ * resource.  Then walks the bundle's parent chain, calling `put()` on the sink for each item in the
+ * parent chain.
+ * @param bundle The bundle to search
+ * @param path The path of the desired resource
+ * @param sink A `ResourceSink` that gets called for each resource in the parent chain
+ * @param errorCode The error code
+ */
+U_CAPI void U_EXPORT2
+ures_getAllItemsWithFallback(const UResourceBundle *bundle, const char *path,
+                             icu::ResourceSink &sink, UErrorCode &errorCode);
+
+/**
+ * Locates the resource specified by `path` in the resource bundle specified by `bundle` (performing any
+ * necessary fallback and following any aliases) and, if the resource is a table resource, iterates over its
+ * immediate child resources (again, following any aliases to get the individual resource values), and calls the specified
+ * `sink`'s `put()` method for each child resource (passing it that resource's key and either its actual value or,
+ * if that value is an alias, the value you get by following the alias).  Then walks back over the bundle's
+ * parent chain, similarly iterating over each parent table resource's child resources.
+ * Does not descend beyond one level of table children.
+ * @param bundle The bundle to search
+ * @param path The path of the desired resource
+ * @param sink A `ResourceSink` that gets called for each child resource of the specified resource (and each child
+ * of the resources in its parent chain).
+ * @param errorCode The error code.  This will be U_RESOURCE_TYPE_MISMATCH if the resource the caller
+ * is asking for isn't a table resource.
+ */
+U_CAPI void U_EXPORT2
+ures_getAllChildrenWithFallback(const UResourceBundle *bundle, const char *path,
+                                icu::ResourceSink &sink, UErrorCode &errorCode);
+
+#endif  /* __cplusplus */
+
+/**
+ * Get a version number by key
+ * @param resB bundle containing version number
+ * @param key the key for the version number
+ * @param ver fillin for the version number
+ * @param status error code
+ */
+U_CAPI void U_EXPORT2
+ures_getVersionByKey(const UResourceBundle *resB,
+                     const char *key,
+                     UVersionInfo ver,
+                     UErrorCode *status);
+
+
+/**
+ * Internal function.
+ * Return the version number associated with this ResourceBundle as a string.
+ *
+ * @param resourceBundle The resource bundle for which the version is checked.
+ * @return  A version number string as specified in the resource bundle or its parent.
+ *          The caller does not own this string.
+ * @see ures_getVersion
+ */
+U_CAPI const char* U_EXPORT2 
+ures_getVersionNumberInternal(const UResourceBundle *resourceBundle);
+
+/**
+ * Return the name of the Locale associated with this ResourceBundle. This API allows
+ * you to query for the real locale of the resource. For example, if you requested 
+ * "en_US_CALIFORNIA" and only "en_US" bundle exists, "en_US" will be returned. 
+ * For subresources, the locale where this resource comes from will be returned.
+ * If fallback has occurred, getLocale will reflect this.
+ *
+ * This internal version avoids deprecated-warnings in ICU code.
+ *
+ * @param resourceBundle resource bundle in question
+ * @param status just for catching illegal arguments
+ * @return  A Locale name
+ */
+U_CAPI const char* U_EXPORT2 
+ures_getLocaleInternal(const UResourceBundle* resourceBundle, 
+               UErrorCode* status);
+
+/**
+ * Same as ures_openDirect() but uses the fill-in parameter instead of allocating a new bundle.
+ * 
+ * @param r The existing UResourceBundle to fill in. If NULL then status will be
+ *          set to U_ILLEGAL_ARGUMENT_ERROR.
+ * @param packageName   The packageName and locale together point to an ICU udata object,
+ *                      as defined by <code> udata_open( packageName, "res", locale, err) </code>
+ *                      or equivalent.  Typically, packageName will refer to a (.dat) file, or to
+ *                      a package registered with udata_setAppData(). Using a full file or directory
+ *                      pathname for packageName is deprecated. If NULL, ICU data will be used.
+ * @param locale  specifies the locale for which we want to open the resource
+ *                if NULL, the default locale will be used. If strlen(locale) == 0
+ *                root locale will be used.
+ * @param status The error code.
+ * @see ures_openDirect
+ * @internal
+ */
+U_CAPI void U_EXPORT2
+ures_openDirectFillIn(UResourceBundle *r,
+                      const char *packageName,
+                      const char *locale,
+                      UErrorCode *status);
+
+#endif /*URESIMP_H*/