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-// © 2016 and later: Unicode, Inc. and others.
-// License & terms of use: http://www.unicode.org/copyright.html
-/*
-******************************************************************************
-*
-* Copyright (C) 2008-2016, International Business Machines
-* Corporation and others. All Rights Reserved.
-*
-******************************************************************************
-* file name: uspoof_conf.h
-* encoding: UTF-8
-* tab size: 8 (not used)
-* indentation:4
-*
-* created on: 2009Jan05
-* created by: Andy Heninger
-*
-* Internal classes for compiling confusable data into its binary (runtime) form.
-*/
-
-#ifndef __USPOOF_BUILDCONF_H__
-#define __USPOOF_BUILDCONF_H__
-
-#include "unicode/utypes.h"
-
-#if !UCONFIG_NO_NORMALIZATION
-
-#if !UCONFIG_NO_REGULAR_EXPRESSIONS
-
-#include "unicode/uregex.h"
-#include "uhash.h"
-#include "uspoof_impl.h"
-
-U_NAMESPACE_BEGIN
-
-// SPUString
-// Holds a string that is the result of one of the mappings defined
-// by the confusable mapping data (confusables.txt from Unicode.org)
-// Instances of SPUString exist during the compilation process only.
-
-struct SPUString : public UMemory {
- UnicodeString *fStr; // The actual string.
- int32_t fCharOrStrTableIndex; // Index into the final runtime data for this
- // string (or, for length 1, the single string char
- // itself, there being no string table entry for it.)
- SPUString(UnicodeString *s);
- ~SPUString();
-};
-
-
-// String Pool A utility class for holding the strings that are the result of
-// the spoof mappings. These strings will utimately end up in the
-// run-time String Table.
-// This is sort of like a sorted set of strings, except that ICU's anemic
-// built-in collections don't support those, so it is implemented with a
-// combination of a uhash and a UVector.
-
-
-class SPUStringPool : public UMemory {
- public:
- SPUStringPool(UErrorCode &status);
- ~SPUStringPool();
-
- // Add a string. Return the string from the table.
- // If the input parameter string is already in the table, delete the
- // input parameter and return the existing string.
- SPUString *addString(UnicodeString *src, UErrorCode &status);
-
-
- // Get the n-th string in the collection.
- SPUString *getByIndex(int32_t i);
-
- // Sort the contents; affects the ordering of getByIndex().
- void sort(UErrorCode &status);
-
- int32_t size();
-
- private:
- UVector *fVec; // Elements are SPUString *
- UHashtable *fHash; // Key: UnicodeString Value: SPUString
-};
-
-
-// class ConfusabledataBuilder
-// An instance of this class exists while the confusable data is being built from source.
-// It encapsulates the intermediate data structures that are used for building.
-// It exports one static function, to do a confusable data build.
-
-class ConfusabledataBuilder : public UMemory {
- private:
- SpoofImpl *fSpoofImpl;
- UChar *fInput;
- UHashtable *fTable;
- UnicodeSet *fKeySet; // A set of all keys (UChar32s) that go into the four mapping tables.
-
- // The binary data is first assembled into the following four collections, then
- // copied to its final raw-memory destination.
- UVector *fKeyVec;
- UVector *fValueVec;
- UnicodeString *fStringTable;
-
- SPUStringPool *stringPool;
- URegularExpression *fParseLine;
- URegularExpression *fParseHexNum;
- int32_t fLineNum;
-
- ConfusabledataBuilder(SpoofImpl *spImpl, UErrorCode &status);
- ~ConfusabledataBuilder();
- void build(const char * confusables, int32_t confusablesLen, UErrorCode &status);
-
- // Add an entry to the key and value tables being built
- // input: data from SLTable, MATable, etc.
- // outut: entry added to fKeyVec and fValueVec
- void addKeyEntry(UChar32 keyChar, // The key character
- UHashtable *table, // The table, one of SATable, MATable, etc.
- int32_t tableFlag, // One of USPOOF_SA_TABLE_FLAG, etc.
- UErrorCode &status);
-
- // From an index into fKeyVec & fValueVec
- // get a UnicodeString with the corresponding mapping.
- UnicodeString getMapping(int32_t index);
-
- // Populate the final binary output data array with the compiled data.
- void outputData(UErrorCode &status);
-
- public:
- static void buildConfusableData(SpoofImpl *spImpl, const char * confusables,
- int32_t confusablesLen, int32_t *errorType, UParseError *pe, UErrorCode &status);
-};
-U_NAMESPACE_END
-
-#endif
-#endif // !UCONFIG_NO_REGULAR_EXPRESSIONS
-#endif // __USPOOF_BUILDCONF_H__