The Tor Browser: comparison intl/icu/source/common/propname.h

--1:000000000000
+:19529bbc2945
+/*
+**********************************************************************
+* Copyright (c) 2002-2011, International Business Machines
+* Corporation and others.  All Rights Reserved.
+**********************************************************************
+* Author: Alan Liu
+* Created: October 30 2002
+* Since: ICU 2.4
+* 2010nov19 Markus Scherer  Rewrite for formatVersion 2.
+**********************************************************************
+*/
+#ifndef PROPNAME_H
+#define PROPNAME_H
+#include "unicode/utypes.h"
+#include "unicode/bytestrie.h"
+#include "unicode/uchar.h"
+#include "udataswp.h"
+#include "uprops.h"
+/*
+* This header defines the in-memory layout of the property names data
+* structure representing the UCD data files PropertyAliases.txt and
+* PropertyValueAliases.txt.  It is used by:
+*   propname.cpp - reads data
+*   genpname     - creates data
+*/
+/* low-level char * property name comparison -------------------------------- */
+U_CDECL_BEGIN
+/**
+* \var uprv_comparePropertyNames
+* Unicode property names and property value names are compared "loosely".
+*
+* UCD.html 4.0.1 says:
+*   For all property names, property value names, and for property values for
+*   Enumerated, Binary, or Catalog properties, use the following
+*   loose matching rule:
+*
+*   LM3. Ignore case, whitespace, underscore ('_'), and hyphens.
+*
+* This function does just that, for (char *) name strings.
+* It is almost identical to ucnv_compareNames() but also ignores
+* C0 White_Space characters (U+0009..U+000d, and U+0085 on EBCDIC).
+*
+* @internal
+*/
+U_CAPI int32_t U_EXPORT2
+uprv_compareASCIIPropertyNames(const char *name1, const char *name2);
+U_CAPI int32_t U_EXPORT2
+uprv_compareEBCDICPropertyNames(const char *name1, const char *name2);
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+#   define uprv_comparePropertyNames uprv_compareASCIIPropertyNames
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+#   define uprv_comparePropertyNames uprv_compareEBCDICPropertyNames
+#else
+#   error U_CHARSET_FAMILY is not valid
+#endif
+U_CDECL_END
+/* UDataMemory structure and signatures ------------------------------------- */
+#define PNAME_DATA_NAME "pnames"
+#define PNAME_DATA_TYPE "icu"
+/* Fields in UDataInfo: */
+/* PNAME_SIG[] is encoded as numeric literals for compatibility with the HP compiler */
+#define PNAME_SIG_0 ((uint8_t)0x70) /* p */
+#define PNAME_SIG_1 ((uint8_t)0x6E) /* n */
+#define PNAME_SIG_2 ((uint8_t)0x61) /* a */
+#define PNAME_SIG_3 ((uint8_t)0x6D) /* m */
+U_NAMESPACE_BEGIN
+class PropNameData {
+public:
+enum {
+// Byte offsets from the start of the data, after the generic header.
+IX_VALUE_MAPS_OFFSET,
+IX_BYTE_TRIES_OFFSET,
+IX_NAME_GROUPS_OFFSET,
+IX_RESERVED3_OFFSET,
+IX_RESERVED4_OFFSET,
+IX_TOTAL_SIZE,
+// Other values.
+IX_MAX_NAME_LENGTH,
+IX_RESERVED7,
+IX_COUNT
+};
+static const char *getPropertyName(int32_t property, int32_t nameChoice);
+static const char *getPropertyValueName(int32_t property, int32_t value, int32_t nameChoice);
+static int32_t getPropertyEnum(const char *alias);
+static int32_t getPropertyValueEnum(int32_t property, const char *alias);
+private:
+static int32_t findProperty(int32_t property);
+static int32_t findPropertyValueNameGroup(int32_t valueMapIndex, int32_t value);
+static const char *getName(const char *nameGroup, int32_t nameIndex);
+static UBool containsName(BytesTrie &trie, const char *name);
+static int32_t getPropertyOrValueEnum(int32_t bytesTrieOffset, const char *alias);
+static const int32_t indexes[];
+static const int32_t valueMaps[];
+static const uint8_t bytesTries[];
+static const char nameGroups[];
+};
+/*
+* pnames.icu formatVersion 2
+*
+* formatVersion 2 is new in ICU 4.8.
+* In ICU 4.8, the pnames.icu data file is used only in ICU4J.
+* ICU4C 4.8 has the same data structures hardcoded in source/common/propname_data.h.
+*
+* For documentation of pnames.icu formatVersion 1 see ICU4C 4.6 (2010-dec-01)
+* or earlier versions of this header file (source/common/propname.h).
+*
+* The pnames.icu begins with the standard ICU DataHeader/UDataInfo.
+* After that:
+*
+* int32_t indexes[8];
+*
+*      (See the PropNameData::IX_... constants.)
+*
+*      The first 6 indexes are byte offsets from the beginning of the data
+*      (beginning of indexes[]) to following structures.
+*      The length of each structure is the difference between its offset
+*      and the next one.
+*      All offsets are filled in: Where there is no data between two offsets,
+*      those two offsets are the same.
+*      The last offset (indexes[PropNameData::IX_TOTAL_SIZE]) indicates the
+*      total number of bytes in the file. (Not counting the standard headers.)
+*
+*      The sixth index (indexes[PropNameData::IX_MAX_NAME_LENGTH]) has the
+*      maximum length of any Unicode property (or property value) alias.
+*      (Without normalization, that is, including underscores etc.)
+*
+* int32_t valueMaps[];
+*
+*      The valueMaps[] begins with a map from UProperty enums to properties,
+*      followed by the per-property value maps from property values to names,
+*      for those properties that have named values.
+*      (Binary & enumerated, plus General_Category_Mask.)
+*
+*      valueMaps[0] contains the number of UProperty enum ranges.
+*      For each range:
+*        int32_t start, limit -- first and last+1 UProperty enum of a dense range
+*        Followed by (limit-start) pairs of
+*          int32_t nameGroupOffset;
+*            Offset into nameGroups[] for the property's names/aliases.
+*          int32_t valueMapIndex;
+*            Offset of the property's value map in the valueMaps[] array.
+*            If the valueMapIndex is 0, then the property does not have named values.
+*
+*      For each property's value map:
+*      int32_t bytesTrieOffset; -- Offset into bytesTries[] for name->value mapping.
+*      int32_t numRanges;
+*        If numRanges is in the range 1..15, then that many ranges of values follow.
+*        Per range:
+*          int32_t start, limit -- first and last+1 UProperty enum of a range
+*          Followed by (limit-start) entries of
+*            int32_t nameGroupOffset;
+*              Offset into nameGroups[] for the property value's names/aliases.
+*              If the nameGroupOffset is 0, then this is not a named value for this property.
+*              (That is, the ranges need not be dense.)
+*        If numRanges is >=0x10, then (numRanges-0x10) sorted values
+*        and then (numRanges-0x10) corresponding nameGroupOffsets follow.
+*        Values are sorted as signed integers.
+*        In this case, the set of values is dense; no nameGroupOffset will be 0.
+*
+*      For both properties and property values, ranges are sorted by their start/limit values.
+*
+* uint8_t bytesTries[];
+*
+*      This is a sequence of BytesTrie structures, byte-serialized tries for
+*      mapping from names/aliases to values.
+*      The first one maps from property names/aliases to UProperty enum constants.
+*      The following ones are indexed by property value map bytesTrieOffsets
+*      for mapping each property's names/aliases to their property values.
+*
+* char nameGroups[];
+*
+*      This is a sequence of property name groups.
+*      Each group is a list of names/aliases (invariant-character strings) for
+*      one property or property value, in the order of UCharNameChoice.
+*      The first byte of each group is the number of names in the group.
+*      It is followed by that many NUL-terminated strings.
+*      The first string is for the short name; if there is no short name,
+*      then the first string is empty.
+*      The second string is the long name. Further strings are additional aliases.
+*
+*      The first name group is for a property rather than a property value,
+*      so that a nameGroupOffset of 0 can be used to indicate "no value"
+*      in a property's sparse value ranges.
+*/
+U_NAMESPACE_END
+#endif

The Tor Browser / file comparison

comparison: intl/icu/source/common/propname.h

intl/icu/source/common/propname.h