Update ICU to 54.1 step 1

source/i18n/collationsettings.cpp

+/*
+*******************************************************************************
+* Copyright (C) 2013-2014, International Business Machines
+* Corporation and others.  All Rights Reserved.
+*******************************************************************************
+* collationsettings.cpp
+*
+* created on: 2013feb07
+* created by: Markus W. Scherer
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_COLLATION
+
+#include "unicode/ucol.h"
+#include "cmemory.h"
+#include "collation.h"
+#include "collationsettings.h"
+#include "sharedobject.h"
+#include "uassert.h"
+#include "umutex.h"
+
+U_NAMESPACE_BEGIN
+
+CollationSettings::CollationSettings(const CollationSettings &other)
+        : SharedObject(other),
+          options(other.options), variableTop(other.variableTop),
+          reorderTable(NULL),
+          reorderCodes(NULL), reorderCodesLength(0), reorderCodesCapacity(0),
+          fastLatinOptions(other.fastLatinOptions) {
+    int32_t length = other.reorderCodesLength;
+    if(length == 0) {
+        U_ASSERT(other.reorderTable == NULL);
+    } else {
+        U_ASSERT(other.reorderTable != NULL);
+        if(other.reorderCodesCapacity == 0) {
+            aliasReordering(other.reorderCodes, length, other.reorderTable);
+        } else {
+            setReordering(other.reorderCodes, length, other.reorderTable);
+        }
+    }
+    if(fastLatinOptions >= 0) {
+        uprv_memcpy(fastLatinPrimaries, other.fastLatinPrimaries, sizeof(fastLatinPrimaries));
+    }
+}
+
+CollationSettings::~CollationSettings() {
+    if(reorderCodesCapacity != 0) {
+        uprv_free(const_cast<int32_t *>(reorderCodes));
+    }
+}
+
+UBool
+CollationSettings::operator==(const CollationSettings &other) const {
+    if(options != other.options) { return FALSE; }
+    if((options & ALTERNATE_MASK) != 0 && variableTop != other.variableTop) { return FALSE; }
+    if(reorderCodesLength != other.reorderCodesLength) { return FALSE; }
+    for(int32_t i = 0; i < reorderCodesLength; ++i) {
+        if(reorderCodes[i] != other.reorderCodes[i]) { return FALSE; }
+    }
+    return TRUE;
+}
+
+int32_t
+CollationSettings::hashCode() const {
+    int32_t h = options << 8;
+    if((options & ALTERNATE_MASK) != 0) { h ^= variableTop; }
+    h ^= reorderCodesLength;
+    for(int32_t i = 0; i < reorderCodesLength; ++i) {
+        h ^= (reorderCodes[i] << i);
+    }
+    return h;
+}
+
+void
+CollationSettings::resetReordering() {
+    // When we turn off reordering, we want to set a NULL permutation
+    // rather than a no-op permutation.
+    // Keep the memory via reorderCodes and its capacity.
+    reorderTable = NULL;
+    reorderCodesLength = 0;
+}
+
+void
+CollationSettings::aliasReordering(const int32_t *codes, int32_t length, const uint8_t *table) {
+    if(length == 0) {
+        resetReordering();
+    } else {
+        // We need to release the memory before setting the alias pointer.
+        if(reorderCodesCapacity != 0) {
+            uprv_free(const_cast<int32_t *>(reorderCodes));
+            reorderCodesCapacity = 0;
+        }
+        reorderTable = table;
+        reorderCodes = codes;
+        reorderCodesLength = length;
+    }
+}
+
+UBool
+CollationSettings::setReordering(const int32_t *codes, int32_t length, const uint8_t table[256]) {
+    if(length == 0) {
+        resetReordering();
+    } else {
+        uint8_t *ownedTable;
+        int32_t *ownedCodes;
+        if(length <= reorderCodesCapacity) {
+            ownedTable = const_cast<uint8_t *>(reorderTable);
+            ownedCodes = const_cast<int32_t *>(reorderCodes);
+        } else {
+            // Allocate one memory block for the codes and the 16-aligned table.
+            int32_t capacity = (length + 3) & ~3;  // round up to a multiple of 4 ints
+            uint8_t *bytes = (uint8_t *)uprv_malloc(256 + capacity * 4);
+            if(bytes == NULL) { return FALSE; }
+            if(reorderCodesCapacity != 0) {
+                uprv_free(const_cast<int32_t *>(reorderCodes));
+            }
+            reorderTable = ownedTable = bytes + capacity * 4;
+            reorderCodes = ownedCodes = (int32_t *)bytes;
+            reorderCodesCapacity = capacity;
+        }
+        uprv_memcpy(ownedTable, table, 256);
+        uprv_memcpy(ownedCodes, codes, length * 4);
+        reorderCodesLength = length;
+    }
+    return TRUE;
+}
+
+void
+CollationSettings::setStrength(int32_t value, int32_t defaultOptions, UErrorCode &errorCode) {
+    if(U_FAILURE(errorCode)) { return; }
+    int32_t noStrength = options & ~STRENGTH_MASK;
+    switch(value) {
+    case UCOL_PRIMARY:
+    case UCOL_SECONDARY:
+    case UCOL_TERTIARY:
+    case UCOL_QUATERNARY:
+    case UCOL_IDENTICAL:
+        options = noStrength | (value << STRENGTH_SHIFT);
+        break;
+    case UCOL_DEFAULT:
+        options = noStrength | (defaultOptions & STRENGTH_MASK);
+        break;
+    default:
+        errorCode = U_ILLEGAL_ARGUMENT_ERROR;
+        break;
+    }
+}
+
+void
+CollationSettings::setFlag(int32_t bit, UColAttributeValue value,
+                           int32_t defaultOptions, UErrorCode &errorCode) {
+    if(U_FAILURE(errorCode)) { return; }
+    switch(value) {
+    case UCOL_ON:
+        options |= bit;
+        break;
+    case UCOL_OFF:
+        options &= ~bit;
+        break;
+    case UCOL_DEFAULT:
+        options = (options & ~bit) | (defaultOptions & bit);
+        break;
+    default:
+        errorCode = U_ILLEGAL_ARGUMENT_ERROR;
+        break;
+    }
+}
+
+void
+CollationSettings::setCaseFirst(UColAttributeValue value,
+                                int32_t defaultOptions, UErrorCode &errorCode) {
+    if(U_FAILURE(errorCode)) { return; }
+    int32_t noCaseFirst = options & ~CASE_FIRST_AND_UPPER_MASK;
+    switch(value) {
+    case UCOL_OFF:
+        options = noCaseFirst;
+        break;
+    case UCOL_LOWER_FIRST:
+        options = noCaseFirst | CASE_FIRST;
+        break;
+    case UCOL_UPPER_FIRST:
+        options = noCaseFirst | CASE_FIRST_AND_UPPER_MASK;
+        break;
+    case UCOL_DEFAULT:
+        options = noCaseFirst | (defaultOptions & CASE_FIRST_AND_UPPER_MASK);
+        break;
+    default:
+        errorCode = U_ILLEGAL_ARGUMENT_ERROR;
+        break;
+    }
+}
+
+void
+CollationSettings::setAlternateHandling(UColAttributeValue value,
+                                        int32_t defaultOptions, UErrorCode &errorCode) {
+    if(U_FAILURE(errorCode)) { return; }
+    int32_t noAlternate = options & ~ALTERNATE_MASK;
+    switch(value) {
+    case UCOL_NON_IGNORABLE:
+        options = noAlternate;
+        break;
+    case UCOL_SHIFTED:
+        options = noAlternate | SHIFTED;
+        break;
+    case UCOL_DEFAULT:
+        options = noAlternate | (defaultOptions & ALTERNATE_MASK);
+        break;
+    default:
+        errorCode = U_ILLEGAL_ARGUMENT_ERROR;
+        break;
+    }
+}
+
+void
+CollationSettings::setMaxVariable(int32_t value, int32_t defaultOptions, UErrorCode &errorCode) {
+    if(U_FAILURE(errorCode)) { return; }
+    int32_t noMax = options & ~MAX_VARIABLE_MASK;
+    switch(value) {
+    case MAX_VAR_SPACE:
+    case MAX_VAR_PUNCT:
+    case MAX_VAR_SYMBOL:
+    case MAX_VAR_CURRENCY:
+        options = noMax | (value << MAX_VARIABLE_SHIFT);
+        break;
+    case UCOL_DEFAULT:
+        options = noMax | (defaultOptions & MAX_VARIABLE_MASK);
+        break;
+    default:
+        errorCode = U_ILLEGAL_ARGUMENT_ERROR;
+        break;
+    }
+}
+
+U_NAMESPACE_END
+
+#endif  // !UCONFIG_NO_COLLATION