Issue #1971 - Part 2: Update ICU source to 63.2.

intl/icu/source/i18n/number_decimfmtprops.h

@@ -0,0 +1,163 @@
+// © 2017 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+#ifndef __NUMBER_DECIMFMTPROPS_H__
+#define __NUMBER_DECIMFMTPROPS_H__
+
+#include "unicode/unistr.h"
+#include <cstdint>
+#include "unicode/plurrule.h"
+#include "unicode/currpinf.h"
+#include "unicode/unum.h"
+#include "unicode/localpointer.h"
+#include "number_types.h"
+
+U_NAMESPACE_BEGIN
+
+// Export an explicit template instantiation of the LocalPointer that is used as a
+// data member of CurrencyPluralInfoWrapper.
+// (When building DLLs for Windows this is required.)
+#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
+// Ignore warning 4661 as LocalPointerBase does not use operator== or operator!=
+#pragma warning(suppress: 4661)
+template class U_I18N_API LocalPointerBase<CurrencyPluralInfo>;
+template class U_I18N_API LocalPointer<CurrencyPluralInfo>;
+#endif
+
+namespace number {
+namespace impl {
+
+// Exported as U_I18N_API because it is a public member field of exported DecimalFormatProperties
+// Using this wrapper is rather unfortunate, but is needed on Windows platforms in order to allow
+// for DLL-exporting an fully specified template instantiation.
+class U_I18N_API CurrencyPluralInfoWrapper {
+public:
+    LocalPointer<CurrencyPluralInfo> fPtr;
+
+    CurrencyPluralInfoWrapper() = default;
+
+    CurrencyPluralInfoWrapper(const CurrencyPluralInfoWrapper& other) {
+        if (!other.fPtr.isNull()) {
+            fPtr.adoptInstead(new CurrencyPluralInfo(*other.fPtr));
+        }
+    }
+
+    CurrencyPluralInfoWrapper& operator=(const CurrencyPluralInfoWrapper& other) {
+        if (!other.fPtr.isNull()) {
+            fPtr.adoptInstead(new CurrencyPluralInfo(*other.fPtr));
+        }
+        return *this;
+    }
+};
+
+/** Controls the set of rules for parsing a string from the old DecimalFormat API. */
+enum ParseMode {
+    /**
+     * Lenient mode should be used if you want to accept malformed user input. It will use heuristics
+     * to attempt to parse through typographical errors in the string.
+     */
+            PARSE_MODE_LENIENT,
+
+    /**
+     * Strict mode should be used if you want to require that the input is well-formed. More
+     * specifically, it differs from lenient mode in the following ways:
+     *
+     * <ul>
+     * <li>Grouping widths must match the grouping settings. For example, "12,3,45" will fail if the
+     * grouping width is 3, as in the pattern "#,##0".
+     * <li>The string must contain a complete prefix and suffix. For example, if the pattern is
+     * "{#};(#)", then "{123}" or "(123)" would match, but "{123", "123}", and "123" would all fail.
+     * (The latter strings would be accepted in lenient mode.)
+     * <li>Whitespace may not appear at arbitrary places in the string. In lenient mode, whitespace
+     * is allowed to occur arbitrarily before and after prefixes and exponent separators.
+     * <li>Leading grouping separators are not allowed, as in ",123".
+     * <li>Minus and plus signs can only appear if specified in the pattern. In lenient mode, a plus
+     * or minus sign can always precede a number.
+     * <li>The set of characters that can be interpreted as a decimal or grouping separator is
+     * smaller.
+     * <li><strong>If currency parsing is enabled,</strong> currencies must only appear where
+     * specified in either the current pattern string or in a valid pattern string for the current
+     * locale. For example, if the pattern is "¤0.00", then "$1.23" would match, but "1.23$" would
+     * fail to match.
+     * </ul>
+     */
+            PARSE_MODE_STRICT,
+};
+
+// Exported as U_I18N_API because it is needed for the unit test PatternStringTest
+struct U_I18N_API DecimalFormatProperties : public UMemory {
+
+  public:
+    NullableValue<UNumberCompactStyle> compactStyle;
+    NullableValue<CurrencyUnit> currency;
+    CurrencyPluralInfoWrapper currencyPluralInfo;
+    NullableValue<UCurrencyUsage> currencyUsage;
+    bool decimalPatternMatchRequired;
+    bool decimalSeparatorAlwaysShown;
+    bool exponentSignAlwaysShown;
+    bool formatFailIfMoreThanMaxDigits; // ICU4C-only
+    int32_t formatWidth;
+    int32_t groupingSize;
+    bool groupingUsed;
+    int32_t magnitudeMultiplier; // internal field like multiplierScale but separate to avoid conflict
+    int32_t maximumFractionDigits;
+    int32_t maximumIntegerDigits;
+    int32_t maximumSignificantDigits;
+    int32_t minimumExponentDigits;
+    int32_t minimumFractionDigits;
+    int32_t minimumGroupingDigits;
+    int32_t minimumIntegerDigits;
+    int32_t minimumSignificantDigits;
+    int32_t multiplier;
+    int32_t multiplierScale; // ICU4C-only
+    UnicodeString negativePrefix;
+    UnicodeString negativePrefixPattern;
+    UnicodeString negativeSuffix;
+    UnicodeString negativeSuffixPattern;
+    NullableValue<PadPosition> padPosition;
+    UnicodeString padString;
+    bool parseCaseSensitive;
+    bool parseIntegerOnly;
+    NullableValue<ParseMode> parseMode;
+    bool parseNoExponent;
+    bool parseToBigDecimal; // TODO: Not needed in ICU4C?
+    UNumberFormatAttributeValue parseAllInput; // ICU4C-only
+    //PluralRules pluralRules;
+    UnicodeString positivePrefix;
+    UnicodeString positivePrefixPattern;
+    UnicodeString positiveSuffix;
+    UnicodeString positiveSuffixPattern;
+    double roundingIncrement;
+    NullableValue<RoundingMode> roundingMode;
+    int32_t secondaryGroupingSize;
+    bool signAlwaysShown;
+
+    DecimalFormatProperties();
+
+    inline bool operator==(const DecimalFormatProperties& other) const {
+        return _equals(other, false);
+    }
+
+    void clear();
+
+    /**
+     * Checks for equality to the default DecimalFormatProperties, but ignores the prescribed set of
+     * options for fast-path formatting.
+     */
+    bool equalsDefaultExceptFastFormat() const;
+
+  private:
+    bool _equals(const DecimalFormatProperties& other, bool ignoreForFastFormat) const;
+};
+
+} // namespace impl
+} // namespace number
+U_NAMESPACE_END
+
+
+#endif //__NUMBER_DECIMFMTPROPS_H__
+
+#endif /* #if !UCONFIG_NO_FORMATTING */