/*
***************************************************************************
-* Copyright (C) 2008-2011, International Business Machines Corporation
+* Copyright (C) 2008-2013, International Business Machines Corporation
* and others. All Rights Reserved.
***************************************************************************
*
#include "unicode/utypes.h"
#include "unicode/uspoof.h"
-#include "utrie2.h"
#include "unicode/uscript.h"
#include "unicode/udata.h"
+#include "utrie2.h"
#if !UCONFIG_NO_NORMALIZATION
-#ifdef XP_CPLUSPLUS
+#ifdef __cplusplus
U_NAMESPACE_BEGIN
// Magic number for sanity checking spoof data.
#define USPOOF_MAGIC 0x3845fdef
+class IdentifierInfo;
+class ScriptSet;
class SpoofData;
struct SpoofDataHeader;
struct SpoofStringLengthsElement;
-class ScriptSet;
/**
* Class SpoofImpl corresponds directly to the plain C API opaque type
* One of USPOOF_SL_TABLE_FLAG, USPOOF_MA_TABLE_FLAG, etc.
* @return The length in UTF-16 code units of the substition string.
*/
- int32_t confusableLookup(UChar32 inChar, int32_t tableMask, UChar *destBuf) const;
+ int32_t confusableLookup(UChar32 inChar, int32_t tableMask, UnicodeString &destBuf) const;
/** Set and Get AllowedLocales, implementations of the corresponding API */
void setAllowedLocales(const char *localesList, UErrorCode &status);
// Return the test bit flag to be ORed into the eventual user return value
// if a Spoof opportunity is detected.
void wholeScriptCheck(
- const UChar *text, int32_t length, ScriptSet *result, UErrorCode &status) const;
+ const UnicodeString &text, ScriptSet *result, UErrorCode &status) const;
- /** Scan a string to determine how many scripts it includes.
- * Ignore characters with script=Common and scirpt=Inherited.
- * @param text The UChar text to be scanned
- * @param length The length of the input text, -1 for nul termintated.
- * @param pos An out parameter, set to the first input postion at which
- * a second script was encountered, ignoring Common and Inherited.
- * @param status For errors.
- * @return the number of (non-common,inherited) scripts encountered,
- * clipped to a max of two.
- */
- int32_t scriptScan(const UChar *text, int32_t length, int32_t &pos, UErrorCode &status) const;
-
-
- // WholeScript and MixedScript check implementation.
- //
- ScriptSet *WholeScriptCheck(const UChar *text, int32_t length, UErrorCode &status) const;
-
static UClassID U_EXPORT2 getStaticClassID(void);
virtual UClassID getDynamicClassID(void) const;
+ // IdentifierInfo Cache. IdentifierInfo objects are somewhat expensive to create.
+ // Maintain a one-element cache, which is sufficient to avoid repeatedly
+ // creating new ones unless we get multi-thread concurrency in spoof
+ // check operations, which should be statistically uncommon.
+ IdentifierInfo *getIdentifierInfo(UErrorCode &status) const;
+ void releaseIdentifierInfo(IdentifierInfo *idInfo) const;
+
//
// Data Members
//
SpoofData *fSpoofData;
- int32_t fCheckMask; // Spoof table selector. f(Check Type)
-
const UnicodeSet *fAllowedCharsSet; // The UnicodeSet of allowed characters.
// for this Spoof Checker. Defaults to all chars.
const char *fAllowedLocales; // The list of allowed locales.
+ URestrictionLevel fRestrictionLevel; // The maximum restriction level for an acceptable identifier.
+
+ IdentifierInfo *fCachedIdentifierInfo; // Do not use directly. See getIdentifierInfo().:w
};
};
-//-------------------------------------------------------------------------------
-//
-// ScriptSet - Wrapper class for the Script code bit sets that are part of the
-// whole script confusable data.
-//
-// This class is used both at data build and at run time.
-// The constructor is only used at build time.
-// At run time, just point at the prebuilt data and go.
-//
-//-------------------------------------------------------------------------------
-class ScriptSet: public UMemory {
- public:
- ScriptSet();
- ~ScriptSet();
-
- UBool operator == (const ScriptSet &other);
- ScriptSet & operator = (const ScriptSet &other);
-
- void Union(const ScriptSet &other);
- void Union(UScriptCode script);
- void intersect(const ScriptSet &other);
- void intersect(UScriptCode script);
- void setAll();
- void resetAll();
- int32_t countMembers();
-
- private:
- uint32_t bits[6];
-};
-
-
-
-
-//-------------------------------------------------------------------------------
-//
-// NFDBuffer A little class to handle the NFD normalization that is
-// needed on incoming identifiers to be checked.
-// Takes care of buffer handling and normalization
-//
-// Instances of this class are intended to be stack-allocated.
-//
-// TODO: how to map position offsets back to user values?
-//
-//--------------------------------------------------------------------------------
-class NFDBuffer: public UMemory {
-public:
- NFDBuffer(const UChar *text, int32_t length, UErrorCode &status);
- ~NFDBuffer();
- const UChar *getBuffer();
- int32_t getLength();
-
- private:
- const UChar *fOriginalText;
- UChar *fNormalizedText;
- int32_t fNormalizedTextLength;
- UChar fSmallBuf[USPOOF_STACK_BUFFER_SIZE];
-};
-
-
-
-
//-------------------------------------------------------------------------------------
//
// to be deleted when refcount goes to zero.
UDataMemory *fUDM; // If not NULL, our data came from a
// UDataMemory, which we must close when
- // we're done.
+ // we are done.
uint32_t fMemLimit; // Limit of available raw data space
int32_t fRefCount;
U_NAMESPACE_END
-#endif /* XP_CPLUSPLUS */
+#endif /* __cplusplus */
/**
* Endianness swap function for binary spoof data.
projects / apple / icu.git / blobdiff