--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textshaperplugin/IcuSource/common/rbbidata.h Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,192 @@
+/*
+*******************************************************************************
+*
+* Copyright (C) 1999-2005, International Business Machines
+* Corporation and others. All Rights Reserved.
+*
+*******************************************************************************
+* file name: rbbidata.h
+* encoding: US-ASCII
+* tab size: 8 (not used)
+* indentation:4
+*
+* RBBI data formats Includes
+*
+* Structs that describes the format of the Binary RBBI data,
+* as it is stored in ICU's data file.
+*
+* RBBIDataWrapper - Instances of this class sit between the
+* raw data structs and the RulesBasedBreakIterator objects
+* that are created by applications. The wrapper class
+* provides reference counting for the underlying data,
+* and direct pointers to data that would not otherwise
+* be accessible without ugly pointer arithmetic. The
+* wrapper does not attempt to provide any higher level
+* abstractions for the data itself.
+*
+* There will be only one instance of RBBIDataWrapper for any
+* set of RBBI run time data being shared by instances
+* (clones) of RulesBasedBreakIterator.
+*/
+
+#ifndef __RBBIDATA_H__
+#define __RBBIDATA_H__
+
+#include "unicode/utypes.h"
+#include "unicode/udata.h"
+#include "udataswp.h"
+
+/**
+ * Swap RBBI data. See udataswp.h.
+ * @internal
+ */
+U_CAPI int32_t U_EXPORT2
+ubrk_swap(const UDataSwapper *ds,
+ const void *inData, int32_t length, void *outData,
+ UErrorCode *pErrorCode);
+
+#ifdef XP_CPLUSPLUS
+
+#include "unicode/uobject.h"
+#include "unicode/unistr.h"
+#include "utrie.h"
+
+U_NAMESPACE_BEGIN
+
+/*
+ * The following structs map exactly onto the raw data from ICU common data file.
+ */
+struct RBBIDataHeader {
+ uint32_t fMagic; /* == 0xbla0 */
+ uint8_t fFormatVersion[4]; /* Data Format. Same as the value in struct UDataInfo */
+ /* if there is one associated with this data. */
+ /* (version originates in rbbi, is copied to UDataInfo) */
+ /* For ICU 3.2 and earlier, this field was */
+ /* uint32_t fVersion */
+ /* with a value of 1. */
+ uint32_t fLength; /* Total length in bytes of this RBBI Data, */
+ /* including all sections, not just the header. */
+ uint32_t fCatCount; /* Number of character categories. */
+
+ /* */
+ /* Offsets and sizes of each of the subsections within the RBBI data. */
+ /* All offsets are bytes from the start of the RBBIDataHeader. */
+ /* All sizes are in bytes. */
+ /* */
+ uint32_t fFTable; /* forward state transition table. */
+ uint32_t fFTableLen;
+ uint32_t fRTable; /* Offset to the reverse state transition table. */
+ uint32_t fRTableLen;
+ uint32_t fSFTable; /* safe point forward transition table */
+ uint32_t fSFTableLen;
+ uint32_t fSRTable; /* safe point reverse transition table */
+ uint32_t fSRTableLen;
+ uint32_t fTrie; /* Offset to Trie data for character categories */
+ uint32_t fTrieLen;
+ uint32_t fRuleSource; /* Offset to the source for for the break */
+ uint32_t fRuleSourceLen; /* rules. Stored UChar *. */
+ uint32_t fStatusTable; /* Offset to the table of rule status values */
+ uint32_t fStatusTableLen;
+
+ uint32_t fReserved[6]; /* Reserved for expansion */
+
+};
+
+
+
+struct RBBIStateTableRow {
+ int16_t fAccepting; /* Non-zero if this row is for an accepting state. */
+ /* Value 0: not an accepting state. */
+ /* -1: Unconditional Accepting state. */
+ /* positive: Look-ahead match has completed. */
+ /* Actual boundary position happened earlier */
+ /* Value here == fLookAhead in earlier */
+ /* state, at actual boundary pos. */
+ int16_t fLookAhead; /* Non-zero if this row is for a state that */
+ /* corresponds to a '/' in the rule source. */
+ /* Value is the same as the fAccepting */
+ /* value for the rule (which will appear */
+ /* in a different state. */
+ int16_t fTagIdx; /* Non-zero if this row covers a {tagged} position */
+ /* from a rule. Value is the index in the */
+ /* StatusTable of the set of matching */
+ /* tags (rule status values) */
+ int16_t fReserved;
+ uint16_t fNextState[2]; /* Next State, indexed by char category. */
+ /* Array Size is fNumCols from the */
+ /* state table header. */
+ /* CAUTION: see RBBITableBuilder::getTableSize() */
+ /* before changing anything here. */
+};
+
+
+struct RBBIStateTable {
+ uint32_t fNumStates; /* Number of states. */
+ uint32_t fRowLen; /* Length of a state table row, in bytes. */
+ uint32_t fFlags; /* Option Flags for this state table */
+ uint32_t fReserved; /* reserved */
+ char fTableData[4]; /* First RBBIStateTableRow begins here. */
+ /* (making it char[] simplifies ugly address */
+ /* arithmetic for indexing variable length rows.) */
+};
+
+typedef enum {
+ RBBI_LOOKAHEAD_HARD_BREAK = 1
+} RBBIStateTableFlags;
+
+
+/* */
+/* The reference counting wrapper class */
+/* */
+class RBBIDataWrapper : public UMemory {
+public:
+ RBBIDataWrapper(const RBBIDataHeader *data, UErrorCode &status);
+ RBBIDataWrapper(UDataMemory* udm, UErrorCode &status);
+ ~RBBIDataWrapper();
+
+ void init(const RBBIDataHeader *data, UErrorCode &status);
+ RBBIDataWrapper *addReference();
+ void removeReference();
+ UBool operator ==(const RBBIDataWrapper &other) const;
+ int32_t hashCode();
+ const UnicodeString &getRuleSourceString() const;
+#ifdef RBBI_DEBUG
+ void printData();
+ void printTable(const char *heading, const RBBIStateTable *table);
+#else
+ #define printData()
+ #define printTable(heading, table)
+#endif
+
+ /* */
+ /* Pointers to items within the data */
+ /* */
+ const RBBIDataHeader *fHeader;
+ const RBBIStateTable *fForwardTable;
+ const RBBIStateTable *fReverseTable;
+ const RBBIStateTable *fSafeFwdTable;
+ const RBBIStateTable *fSafeRevTable;
+ const UChar *fRuleSource;
+ const int32_t *fRuleStatusTable;
+
+ /* number of int32_t values in the rule status table. Used to sanity check indexing */
+ int32_t fStatusMaxIdx;
+
+ UTrie fTrie;
+
+private:
+ int32_t fRefCount;
+ UDataMemory *fUDataMem;
+ UnicodeString fRuleString;
+
+ RBBIDataWrapper(const RBBIDataWrapper &other); /* forbid copying of this class */
+ RBBIDataWrapper &operator=(const RBBIDataWrapper &other); /* forbid copying of this class */
+};
+
+
+
+U_NAMESPACE_END
+
+#endif /* C++ */
+
+#endif