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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /intl/icu/source/i18n/nfrule.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'intl/icu/source/i18n/nfrule.h')
-rw-r--r-- | intl/icu/source/i18n/nfrule.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/intl/icu/source/i18n/nfrule.h b/intl/icu/source/i18n/nfrule.h new file mode 100644 index 0000000000..fda74fabf2 --- /dev/null +++ b/intl/icu/source/i18n/nfrule.h @@ -0,0 +1,129 @@ +// © 2016 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html +/* +******************************************************************************* +* Copyright (C) 1997-2015, International Business Machines +* Corporation and others. All Rights Reserved. +******************************************************************************* +*/ + +#ifndef NFRULE_H +#define NFRULE_H + +#include "unicode/rbnf.h" + +#if U_HAVE_RBNF + +#include "unicode/utypes.h" +#include "unicode/uobject.h" +#include "unicode/unistr.h" + +U_NAMESPACE_BEGIN + +class FieldPosition; +class Formattable; +class NFRuleList; +class NFRuleSet; +class NFSubstitution; +class ParsePosition; +class PluralFormat; +class RuleBasedNumberFormat; +class UnicodeString; + +class NFRule : public UMemory { +public: + + enum ERuleType { + kNoBase = 0, + kNegativeNumberRule = -1, + kImproperFractionRule = -2, + kProperFractionRule = -3, + kDefaultRule = -4, + kInfinityRule = -5, + kNaNRule = -6, + kOtherRule = -7 + }; + + static void makeRules(UnicodeString& definition, + NFRuleSet* ruleSet, + const NFRule* predecessor, + const RuleBasedNumberFormat* rbnf, + NFRuleList& ruleList, + UErrorCode& status); + + NFRule(const RuleBasedNumberFormat* rbnf, const UnicodeString &ruleText, UErrorCode &status); + ~NFRule(); + + bool operator==(const NFRule& rhs) const; + bool operator!=(const NFRule& rhs) const { return !operator==(rhs); } + + ERuleType getType() const { return (ERuleType)(baseValue <= kNoBase ? (ERuleType)baseValue : kOtherRule); } + void setType(ERuleType ruleType) { baseValue = (int32_t)ruleType; } + + int64_t getBaseValue() const { return baseValue; } + void setBaseValue(int64_t value, UErrorCode& status); + + char16_t getDecimalPoint() const { return decimalPoint; } + + int64_t getDivisor() const; + + void doFormat(int64_t number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const; + void doFormat(double number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const; + + UBool doParse(const UnicodeString& text, + ParsePosition& pos, + UBool isFractional, + double upperBound, + uint32_t nonNumericalExecutedRuleMask, + Formattable& result) const; + + UBool shouldRollBack(int64_t number) const; + + void _appendRuleText(UnicodeString& result) const; + + int32_t findTextLenient(const UnicodeString& str, const UnicodeString& key, + int32_t startingAt, int32_t* resultCount) const; + + void setDecimalFormatSymbols(const DecimalFormatSymbols &newSymbols, UErrorCode& status); + +private: + void parseRuleDescriptor(UnicodeString& descriptor, UErrorCode& status); + void extractSubstitutions(const NFRuleSet* ruleSet, const UnicodeString &ruleText, const NFRule* predecessor, UErrorCode& status); + NFSubstitution* extractSubstitution(const NFRuleSet* ruleSet, const NFRule* predecessor, UErrorCode& status); + + int16_t expectedExponent() const; + int32_t indexOfAnyRulePrefix() const; + double matchToDelimiter(const UnicodeString& text, int32_t startPos, double baseValue, + const UnicodeString& delimiter, ParsePosition& pp, const NFSubstitution* sub, + uint32_t nonNumericalExecutedRuleMask, + double upperBound) const; + void stripPrefix(UnicodeString& text, const UnicodeString& prefix, ParsePosition& pp) const; + + int32_t prefixLength(const UnicodeString& str, const UnicodeString& prefix, UErrorCode& status) const; + UBool allIgnorable(const UnicodeString& str, UErrorCode& status) const; + int32_t findText(const UnicodeString& str, const UnicodeString& key, + int32_t startingAt, int32_t* resultCount) const; + +private: + int64_t baseValue; + int32_t radix; + int16_t exponent; + char16_t decimalPoint; + UnicodeString fRuleText; + NFSubstitution* sub1; + NFSubstitution* sub2; + const RuleBasedNumberFormat* formatter; + const PluralFormat* rulePatternFormat; + + NFRule(const NFRule &other); // forbid copying of this class + NFRule &operator=(const NFRule &other); // forbid copying of this class +}; + +U_NAMESPACE_END + +/* U_HAVE_RBNF */ +#endif + +// NFRULE_H +#endif + |