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authormcheshkov <mcheshkov@yandex-team.ru>2022-02-10 16:46:15 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:46:15 +0300
commite9d19cec64684c9c1e6b0c98297e5b895cf904fe (patch)
tree2768b1223e96a8a0610a93d18425d9647c1123c8 /contrib/libs/icu/i18n/number_skeletons.h
parent60040c91ffe701a84689b2c6310ff845e65cff42 (diff)
downloadydb-e9d19cec64684c9c1e6b0c98297e5b895cf904fe.tar.gz
Restoring authorship annotation for <mcheshkov@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/icu/i18n/number_skeletons.h')
-rw-r--r--contrib/libs/icu/i18n/number_skeletons.h704
1 files changed, 352 insertions, 352 deletions
diff --git a/contrib/libs/icu/i18n/number_skeletons.h b/contrib/libs/icu/i18n/number_skeletons.h
index d9b2c0ee0b..4217598561 100644
--- a/contrib/libs/icu/i18n/number_skeletons.h
+++ b/contrib/libs/icu/i18n/number_skeletons.h
@@ -1,352 +1,352 @@
-// © 2018 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 __SOURCE_NUMBER_SKELETONS_H__
-#define __SOURCE_NUMBER_SKELETONS_H__
-
-#include "number_types.h"
-#include "numparse_types.h"
-#include "unicode/ucharstrie.h"
-#include "string_segment.h"
-
-U_NAMESPACE_BEGIN
-namespace number {
-namespace impl {
-
-// Forward-declaration
-struct SeenMacroProps;
-
-// namespace for enums and entrypoint functions
-namespace skeleton {
-
-///////////////////////////////////////////////////////////////////////////////////////
-// NOTE: For an example of how to add a new stem to the number skeleton parser, see: //
-// http://bugs.icu-project.org/trac/changeset/41193 //
-///////////////////////////////////////////////////////////////////////////////////////
-
-/**
- * While parsing a skeleton, this enum records what type of option we expect to find next.
- */
-enum ParseState {
-
- // Section 0: We expect whitespace or a stem, but not an option:
-
- STATE_NULL,
-
- // Section 1: We might accept an option, but it is not required:
-
- STATE_SCIENTIFIC,
- STATE_FRACTION_PRECISION,
-
- // Section 2: An option is required:
-
- STATE_INCREMENT_PRECISION,
- STATE_MEASURE_UNIT,
- STATE_PER_MEASURE_UNIT,
- STATE_IDENTIFIER_UNIT,
- STATE_CURRENCY_UNIT,
- STATE_INTEGER_WIDTH,
- STATE_NUMBERING_SYSTEM,
- STATE_SCALE,
-};
-
-/**
- * All possible stem literals have an entry in the StemEnum. The enum name is the kebab case stem
- * string literal written in upper snake case.
- *
- * @see StemToObject
- * @see #SERIALIZED_STEM_TRIE
- */
-enum StemEnum {
-
- // Section 1: Stems that do not require an option:
-
- STEM_COMPACT_SHORT,
- STEM_COMPACT_LONG,
- STEM_SCIENTIFIC,
- STEM_ENGINEERING,
- STEM_NOTATION_SIMPLE,
- STEM_BASE_UNIT,
- STEM_PERCENT,
- STEM_PERMILLE,
- STEM_PERCENT_100, // concise-only
- STEM_PRECISION_INTEGER,
- STEM_PRECISION_UNLIMITED,
- STEM_PRECISION_CURRENCY_STANDARD,
- STEM_PRECISION_CURRENCY_CASH,
- STEM_ROUNDING_MODE_CEILING,
- STEM_ROUNDING_MODE_FLOOR,
- STEM_ROUNDING_MODE_DOWN,
- STEM_ROUNDING_MODE_UP,
- STEM_ROUNDING_MODE_HALF_EVEN,
- STEM_ROUNDING_MODE_HALF_DOWN,
- STEM_ROUNDING_MODE_HALF_UP,
- STEM_ROUNDING_MODE_UNNECESSARY,
- STEM_GROUP_OFF,
- STEM_GROUP_MIN2,
- STEM_GROUP_AUTO,
- STEM_GROUP_ON_ALIGNED,
- STEM_GROUP_THOUSANDS,
- STEM_LATIN,
- STEM_UNIT_WIDTH_NARROW,
- STEM_UNIT_WIDTH_SHORT,
- STEM_UNIT_WIDTH_FULL_NAME,
- STEM_UNIT_WIDTH_ISO_CODE,
- STEM_UNIT_WIDTH_HIDDEN,
- STEM_SIGN_AUTO,
- STEM_SIGN_ALWAYS,
- STEM_SIGN_NEVER,
- STEM_SIGN_ACCOUNTING,
- STEM_SIGN_ACCOUNTING_ALWAYS,
- STEM_SIGN_EXCEPT_ZERO,
- STEM_SIGN_ACCOUNTING_EXCEPT_ZERO,
- STEM_DECIMAL_AUTO,
- STEM_DECIMAL_ALWAYS,
-
- // Section 2: Stems that DO require an option:
-
- STEM_PRECISION_INCREMENT,
- STEM_MEASURE_UNIT,
- STEM_PER_MEASURE_UNIT,
- STEM_UNIT,
- STEM_CURRENCY,
- STEM_INTEGER_WIDTH,
- STEM_NUMBERING_SYSTEM,
- STEM_SCALE,
-};
-
-/** Default wildcard char, accepted on input and printed in output */
-constexpr char16_t kWildcardChar = u'*';
-
-/** Alternative wildcard char, accept on input but not printed in output */
-constexpr char16_t kAltWildcardChar = u'+';
-
-/** Checks whether the char is a wildcard on input */
-inline bool isWildcardChar(char16_t c) {
- return c == kWildcardChar || c == kAltWildcardChar;
-}
-
-/**
- * Creates a NumberFormatter corresponding to the given skeleton string.
- *
- * @param skeletonString
- * A number skeleton string, possibly not in its shortest form.
- * @return An UnlocalizedNumberFormatter with behavior defined by the given skeleton string.
- */
-UnlocalizedNumberFormatter create(
- const UnicodeString& skeletonString, UParseError* perror, UErrorCode& status);
-
-/**
- * Create a skeleton string corresponding to the given NumberFormatter.
- *
- * @param macros
- * The NumberFormatter options object.
- * @return A skeleton string in normalized form.
- */
-UnicodeString generate(const MacroProps& macros, UErrorCode& status);
-
-/**
- * Converts from a skeleton string to a MacroProps. This method contains the primary parse loop.
- *
- * Internal: use the create() endpoint instead of this function.
- */
-MacroProps parseSkeleton(const UnicodeString& skeletonString, int32_t& errOffset, UErrorCode& status);
-
-/**
- * Given that the current segment represents a stem, parse it and save the result.
- *
- * @return The next state after parsing this stem, corresponding to what subset of options to expect.
- */
-ParseState parseStem(const StringSegment& segment, const UCharsTrie& stemTrie, SeenMacroProps& seen,
- MacroProps& macros, UErrorCode& status);
-
-/**
- * Given that the current segment represents an option, parse it and save the result.
- *
- * @return The next state after parsing this option, corresponding to what subset of options to
- * expect next.
- */
-ParseState
-parseOption(ParseState stem, const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-} // namespace skeleton
-
-
-/**
- * Namespace for utility methods that convert from StemEnum to corresponding objects or enums. This
- * applies to only the "Section 1" stems, those that are well-defined without an option.
- */
-namespace stem_to_object {
-
-Notation notation(skeleton::StemEnum stem);
-
-MeasureUnit unit(skeleton::StemEnum stem);
-
-Precision precision(skeleton::StemEnum stem);
-
-UNumberFormatRoundingMode roundingMode(skeleton::StemEnum stem);
-
-UNumberGroupingStrategy groupingStrategy(skeleton::StemEnum stem);
-
-UNumberUnitWidth unitWidth(skeleton::StemEnum stem);
-
-UNumberSignDisplay signDisplay(skeleton::StemEnum stem);
-
-UNumberDecimalSeparatorDisplay decimalSeparatorDisplay(skeleton::StemEnum stem);
-
-} // namespace stem_to_object
-
-/**
- * Namespace for utility methods that convert from enums to stem strings. More complex object conversions
- * take place in the object_to_stem_string namespace.
- */
-namespace enum_to_stem_string {
-
-void roundingMode(UNumberFormatRoundingMode value, UnicodeString& sb);
-
-void groupingStrategy(UNumberGroupingStrategy value, UnicodeString& sb);
-
-void unitWidth(UNumberUnitWidth value, UnicodeString& sb);
-
-void signDisplay(UNumberSignDisplay value, UnicodeString& sb);
-
-void decimalSeparatorDisplay(UNumberDecimalSeparatorDisplay value, UnicodeString& sb);
-
-} // namespace enum_to_stem_string
-
-/**
- * Namespace for utility methods for processing stems and options that cannot be interpreted literally.
- */
-namespace blueprint_helpers {
-
-/** @return Whether we successfully found and parsed an exponent width option. */
-bool parseExponentWidthOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateExponentWidthOption(int32_t minExponentDigits, UnicodeString& sb, UErrorCode& status);
-
-/** @return Whether we successfully found and parsed an exponent sign option. */
-bool parseExponentSignOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void parseCurrencyOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateCurrencyOption(const CurrencyUnit& currency, UnicodeString& sb, UErrorCode& status);
-
-void parseMeasureUnitOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateMeasureUnitOption(const MeasureUnit& measureUnit, UnicodeString& sb, UErrorCode& status);
-
-void parseMeasurePerUnitOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void parseIdentifierUnitOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void parseFractionStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateFractionStem(int32_t minFrac, int32_t maxFrac, UnicodeString& sb, UErrorCode& status);
-
-void parseDigitsStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateDigitsStem(int32_t minSig, int32_t maxSig, UnicodeString& sb, UErrorCode& status);
-
-void parseScientificStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-// Note: no generateScientificStem since this syntax was added later in ICU 67
-
-void parseIntegerStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-// Note: no generateIntegerStem since this syntax was added later in ICU 67
-
-/** @return Whether we successfully found and parsed a frac-sig option. */
-bool parseFracSigOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void parseIncrementOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void
-generateIncrementOption(double increment, int32_t trailingZeros, UnicodeString& sb, UErrorCode& status);
-
-void parseIntegerWidthOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateIntegerWidthOption(int32_t minInt, int32_t maxInt, UnicodeString& sb, UErrorCode& status);
-
-void parseNumberingSystemOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateNumberingSystemOption(const NumberingSystem& ns, UnicodeString& sb, UErrorCode& status);
-
-void parseScaleOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
-
-void generateScaleOption(int32_t magnitude, const DecNum* arbitrary, UnicodeString& sb,
- UErrorCode& status);
-
-} // namespace blueprint_helpers
-
-/**
- * Class for utility methods for generating a token corresponding to each macro-prop. Each method
- * returns whether or not a token was written to the string builder.
- *
- * This needs to be a class, not a namespace, so it can be friended.
- */
-class GeneratorHelpers {
- public:
- /**
- * Main skeleton generator function. Appends the normalized skeleton for the MacroProps to the given
- * StringBuilder.
- *
- * Internal: use the create() endpoint instead of this function.
- */
- static void generateSkeleton(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- private:
- static bool notation(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool unit(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool perUnit(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool precision(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool roundingMode(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool grouping(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool integerWidth(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool symbols(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool unitWidth(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool sign(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool decimal(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
- static bool scale(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
-
-};
-
-/**
- * Struct for null-checking.
- * In Java, we can just check the object reference. In C++, we need a different method.
- */
-struct SeenMacroProps {
- bool notation = false;
- bool unit = false;
- bool perUnit = false;
- bool precision = false;
- bool roundingMode = false;
- bool grouper = false;
- bool padder = false;
- bool integerWidth = false;
- bool symbols = false;
- bool unitWidth = false;
- bool sign = false;
- bool decimal = false;
- bool scale = false;
-};
-
-} // namespace impl
-} // namespace number
-U_NAMESPACE_END
-
-#endif //__SOURCE_NUMBER_SKELETONS_H__
-#endif /* #if !UCONFIG_NO_FORMATTING */
+// © 2018 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 __SOURCE_NUMBER_SKELETONS_H__
+#define __SOURCE_NUMBER_SKELETONS_H__
+
+#include "number_types.h"
+#include "numparse_types.h"
+#include "unicode/ucharstrie.h"
+#include "string_segment.h"
+
+U_NAMESPACE_BEGIN
+namespace number {
+namespace impl {
+
+// Forward-declaration
+struct SeenMacroProps;
+
+// namespace for enums and entrypoint functions
+namespace skeleton {
+
+///////////////////////////////////////////////////////////////////////////////////////
+// NOTE: For an example of how to add a new stem to the number skeleton parser, see: //
+// http://bugs.icu-project.org/trac/changeset/41193 //
+///////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * While parsing a skeleton, this enum records what type of option we expect to find next.
+ */
+enum ParseState {
+
+ // Section 0: We expect whitespace or a stem, but not an option:
+
+ STATE_NULL,
+
+ // Section 1: We might accept an option, but it is not required:
+
+ STATE_SCIENTIFIC,
+ STATE_FRACTION_PRECISION,
+
+ // Section 2: An option is required:
+
+ STATE_INCREMENT_PRECISION,
+ STATE_MEASURE_UNIT,
+ STATE_PER_MEASURE_UNIT,
+ STATE_IDENTIFIER_UNIT,
+ STATE_CURRENCY_UNIT,
+ STATE_INTEGER_WIDTH,
+ STATE_NUMBERING_SYSTEM,
+ STATE_SCALE,
+};
+
+/**
+ * All possible stem literals have an entry in the StemEnum. The enum name is the kebab case stem
+ * string literal written in upper snake case.
+ *
+ * @see StemToObject
+ * @see #SERIALIZED_STEM_TRIE
+ */
+enum StemEnum {
+
+ // Section 1: Stems that do not require an option:
+
+ STEM_COMPACT_SHORT,
+ STEM_COMPACT_LONG,
+ STEM_SCIENTIFIC,
+ STEM_ENGINEERING,
+ STEM_NOTATION_SIMPLE,
+ STEM_BASE_UNIT,
+ STEM_PERCENT,
+ STEM_PERMILLE,
+ STEM_PERCENT_100, // concise-only
+ STEM_PRECISION_INTEGER,
+ STEM_PRECISION_UNLIMITED,
+ STEM_PRECISION_CURRENCY_STANDARD,
+ STEM_PRECISION_CURRENCY_CASH,
+ STEM_ROUNDING_MODE_CEILING,
+ STEM_ROUNDING_MODE_FLOOR,
+ STEM_ROUNDING_MODE_DOWN,
+ STEM_ROUNDING_MODE_UP,
+ STEM_ROUNDING_MODE_HALF_EVEN,
+ STEM_ROUNDING_MODE_HALF_DOWN,
+ STEM_ROUNDING_MODE_HALF_UP,
+ STEM_ROUNDING_MODE_UNNECESSARY,
+ STEM_GROUP_OFF,
+ STEM_GROUP_MIN2,
+ STEM_GROUP_AUTO,
+ STEM_GROUP_ON_ALIGNED,
+ STEM_GROUP_THOUSANDS,
+ STEM_LATIN,
+ STEM_UNIT_WIDTH_NARROW,
+ STEM_UNIT_WIDTH_SHORT,
+ STEM_UNIT_WIDTH_FULL_NAME,
+ STEM_UNIT_WIDTH_ISO_CODE,
+ STEM_UNIT_WIDTH_HIDDEN,
+ STEM_SIGN_AUTO,
+ STEM_SIGN_ALWAYS,
+ STEM_SIGN_NEVER,
+ STEM_SIGN_ACCOUNTING,
+ STEM_SIGN_ACCOUNTING_ALWAYS,
+ STEM_SIGN_EXCEPT_ZERO,
+ STEM_SIGN_ACCOUNTING_EXCEPT_ZERO,
+ STEM_DECIMAL_AUTO,
+ STEM_DECIMAL_ALWAYS,
+
+ // Section 2: Stems that DO require an option:
+
+ STEM_PRECISION_INCREMENT,
+ STEM_MEASURE_UNIT,
+ STEM_PER_MEASURE_UNIT,
+ STEM_UNIT,
+ STEM_CURRENCY,
+ STEM_INTEGER_WIDTH,
+ STEM_NUMBERING_SYSTEM,
+ STEM_SCALE,
+};
+
+/** Default wildcard char, accepted on input and printed in output */
+constexpr char16_t kWildcardChar = u'*';
+
+/** Alternative wildcard char, accept on input but not printed in output */
+constexpr char16_t kAltWildcardChar = u'+';
+
+/** Checks whether the char is a wildcard on input */
+inline bool isWildcardChar(char16_t c) {
+ return c == kWildcardChar || c == kAltWildcardChar;
+}
+
+/**
+ * Creates a NumberFormatter corresponding to the given skeleton string.
+ *
+ * @param skeletonString
+ * A number skeleton string, possibly not in its shortest form.
+ * @return An UnlocalizedNumberFormatter with behavior defined by the given skeleton string.
+ */
+UnlocalizedNumberFormatter create(
+ const UnicodeString& skeletonString, UParseError* perror, UErrorCode& status);
+
+/**
+ * Create a skeleton string corresponding to the given NumberFormatter.
+ *
+ * @param macros
+ * The NumberFormatter options object.
+ * @return A skeleton string in normalized form.
+ */
+UnicodeString generate(const MacroProps& macros, UErrorCode& status);
+
+/**
+ * Converts from a skeleton string to a MacroProps. This method contains the primary parse loop.
+ *
+ * Internal: use the create() endpoint instead of this function.
+ */
+MacroProps parseSkeleton(const UnicodeString& skeletonString, int32_t& errOffset, UErrorCode& status);
+
+/**
+ * Given that the current segment represents a stem, parse it and save the result.
+ *
+ * @return The next state after parsing this stem, corresponding to what subset of options to expect.
+ */
+ParseState parseStem(const StringSegment& segment, const UCharsTrie& stemTrie, SeenMacroProps& seen,
+ MacroProps& macros, UErrorCode& status);
+
+/**
+ * Given that the current segment represents an option, parse it and save the result.
+ *
+ * @return The next state after parsing this option, corresponding to what subset of options to
+ * expect next.
+ */
+ParseState
+parseOption(ParseState stem, const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+} // namespace skeleton
+
+
+/**
+ * Namespace for utility methods that convert from StemEnum to corresponding objects or enums. This
+ * applies to only the "Section 1" stems, those that are well-defined without an option.
+ */
+namespace stem_to_object {
+
+Notation notation(skeleton::StemEnum stem);
+
+MeasureUnit unit(skeleton::StemEnum stem);
+
+Precision precision(skeleton::StemEnum stem);
+
+UNumberFormatRoundingMode roundingMode(skeleton::StemEnum stem);
+
+UNumberGroupingStrategy groupingStrategy(skeleton::StemEnum stem);
+
+UNumberUnitWidth unitWidth(skeleton::StemEnum stem);
+
+UNumberSignDisplay signDisplay(skeleton::StemEnum stem);
+
+UNumberDecimalSeparatorDisplay decimalSeparatorDisplay(skeleton::StemEnum stem);
+
+} // namespace stem_to_object
+
+/**
+ * Namespace for utility methods that convert from enums to stem strings. More complex object conversions
+ * take place in the object_to_stem_string namespace.
+ */
+namespace enum_to_stem_string {
+
+void roundingMode(UNumberFormatRoundingMode value, UnicodeString& sb);
+
+void groupingStrategy(UNumberGroupingStrategy value, UnicodeString& sb);
+
+void unitWidth(UNumberUnitWidth value, UnicodeString& sb);
+
+void signDisplay(UNumberSignDisplay value, UnicodeString& sb);
+
+void decimalSeparatorDisplay(UNumberDecimalSeparatorDisplay value, UnicodeString& sb);
+
+} // namespace enum_to_stem_string
+
+/**
+ * Namespace for utility methods for processing stems and options that cannot be interpreted literally.
+ */
+namespace blueprint_helpers {
+
+/** @return Whether we successfully found and parsed an exponent width option. */
+bool parseExponentWidthOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateExponentWidthOption(int32_t minExponentDigits, UnicodeString& sb, UErrorCode& status);
+
+/** @return Whether we successfully found and parsed an exponent sign option. */
+bool parseExponentSignOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void parseCurrencyOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateCurrencyOption(const CurrencyUnit& currency, UnicodeString& sb, UErrorCode& status);
+
+void parseMeasureUnitOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateMeasureUnitOption(const MeasureUnit& measureUnit, UnicodeString& sb, UErrorCode& status);
+
+void parseMeasurePerUnitOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void parseIdentifierUnitOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void parseFractionStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateFractionStem(int32_t minFrac, int32_t maxFrac, UnicodeString& sb, UErrorCode& status);
+
+void parseDigitsStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateDigitsStem(int32_t minSig, int32_t maxSig, UnicodeString& sb, UErrorCode& status);
+
+void parseScientificStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+// Note: no generateScientificStem since this syntax was added later in ICU 67
+
+void parseIntegerStem(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+// Note: no generateIntegerStem since this syntax was added later in ICU 67
+
+/** @return Whether we successfully found and parsed a frac-sig option. */
+bool parseFracSigOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void parseIncrementOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void
+generateIncrementOption(double increment, int32_t trailingZeros, UnicodeString& sb, UErrorCode& status);
+
+void parseIntegerWidthOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateIntegerWidthOption(int32_t minInt, int32_t maxInt, UnicodeString& sb, UErrorCode& status);
+
+void parseNumberingSystemOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateNumberingSystemOption(const NumberingSystem& ns, UnicodeString& sb, UErrorCode& status);
+
+void parseScaleOption(const StringSegment& segment, MacroProps& macros, UErrorCode& status);
+
+void generateScaleOption(int32_t magnitude, const DecNum* arbitrary, UnicodeString& sb,
+ UErrorCode& status);
+
+} // namespace blueprint_helpers
+
+/**
+ * Class for utility methods for generating a token corresponding to each macro-prop. Each method
+ * returns whether or not a token was written to the string builder.
+ *
+ * This needs to be a class, not a namespace, so it can be friended.
+ */
+class GeneratorHelpers {
+ public:
+ /**
+ * Main skeleton generator function. Appends the normalized skeleton for the MacroProps to the given
+ * StringBuilder.
+ *
+ * Internal: use the create() endpoint instead of this function.
+ */
+ static void generateSkeleton(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ private:
+ static bool notation(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool unit(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool perUnit(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool precision(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool roundingMode(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool grouping(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool integerWidth(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool symbols(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool unitWidth(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool sign(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool decimal(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+ static bool scale(const MacroProps& macros, UnicodeString& sb, UErrorCode& status);
+
+};
+
+/**
+ * Struct for null-checking.
+ * In Java, we can just check the object reference. In C++, we need a different method.
+ */
+struct SeenMacroProps {
+ bool notation = false;
+ bool unit = false;
+ bool perUnit = false;
+ bool precision = false;
+ bool roundingMode = false;
+ bool grouper = false;
+ bool padder = false;
+ bool integerWidth = false;
+ bool symbols = false;
+ bool unitWidth = false;
+ bool sign = false;
+ bool decimal = false;
+ bool scale = false;
+};
+
+} // namespace impl
+} // namespace number
+U_NAMESPACE_END
+
+#endif //__SOURCE_NUMBER_SKELETONS_H__
+#endif /* #if !UCONFIG_NO_FORMATTING */