icuSources/i18n/numparse_currency.h

   1 // © 2018 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3
   4 #include "unicode/utypes.h"
   5
   6 #if !UCONFIG_NO_FORMATTING
   7 #ifndef __NUMPARSE_CURRENCY_H__
   8 #define __NUMPARSE_CURRENCY_H__
   9
  10 #include "numparse_types.h"
  11 #include "numparse_compositions.h"
  12 #include "charstr.h"
  13 #include "number_currencysymbols.h"
  14 #include "unicode/uniset.h"
  15
  16 U_NAMESPACE_BEGIN namespace numparse {
  17 namespace impl {
  18
  19 using ::icu::number::impl::CurrencySymbols;
  20
  21 /**
  22  * Matches a currency, either a custom currency or one from the data bundle. The class is called
  23  * "combined" to emphasize that the currency string may come from one of multiple sources.
  24  *
  25  * Will match currency spacing either before or after the number depending on whether we are currently in
  26  * the prefix or suffix.
  27  *
  28  * The implementation of this class is slightly different between J and C. See #13584 for a follow-up.
  29  *
  30  * @author sffc
  31  */
  32 // Exported as U_I18N_API for tests
  33 class U_I18N_API CombinedCurrencyMatcher : public NumberParseMatcher, public UMemory {
  34   public:
  35     CombinedCurrencyMatcher() = default;  // WARNING: Leaves the object in an unusable state
  36
  37     CombinedCurrencyMatcher(const CurrencySymbols& currencySymbols, const DecimalFormatSymbols& dfs,
  38                             parse_flags_t parseFlags, UErrorCode& status);
  39
  40     bool match(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const override;
  41
  42     bool smokeTest(const StringSegment& segment) const override;
  43
  44     UnicodeString toString() const override;
  45
  46   private:
  47     UChar fCurrencyCode[4];
  48     UnicodeString fCurrency1;
  49     UnicodeString fCurrency2;
  50
  51     bool fUseFullCurrencyData;
  52     UnicodeString fLocalLongNames[StandardPlural::COUNT];
  53
  54     UnicodeString afterPrefixInsert;
  55     UnicodeString beforeSuffixInsert;
  56
  57     // We could use Locale instead of CharString here, but
  58     // Locale has a non-trivial default constructor.
  59     CharString fLocaleName;
  60
  61     // TODO: See comments in constructor in numparse_currency.cpp
  62     // UnicodeSet fLeadCodePoints;
  63
  64     /** Matches the currency string without concern for currency spacing. */
  65     bool matchCurrency(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const;
  66 };
  67
  68
  69 } // namespace impl
  70 } // namespace numparse
  71 U_NAMESPACE_END
  72
  73 #endif //__NUMPARSE_CURRENCY_H__
  74 #endif /* #if !UCONFIG_NO_FORMATTING */