icuSources/i18n/numparse_validators.cpp

   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
   8 // Allow implicit conversion from char16_t* to UnicodeString for this file:
   9 // Helpful in toString methods and elsewhere.
  10 #define UNISTR_FROM_STRING_EXPLICIT
  11
  12 #include "numparse_types.h"
  13 #include "numparse_validators.h"
  14 #include "static_unicode_sets.h"
  15
  16 using namespace icu;
  17 using namespace icu::numparse;
  18 using namespace icu::numparse::impl;
  19
  20
  21 void RequireAffixValidator::postProcess(ParsedNumber& result) const {
  22     if (result.prefix.isBogus() || result.suffix.isBogus()) {
  23         // We saw a prefix or a suffix but not both. Fail the parse.
  24         result.flags |= FLAG_FAIL;
  25     }
  26 }
  27
  28 UnicodeString RequireAffixValidator::toString() const {
  29     return u"<ReqAffix>";
  30 }
  31
  32
  33 void RequireCurrencyValidator::postProcess(ParsedNumber& result) const {
  34     if (result.currencyCode[0] == 0) {
  35         result.flags |= FLAG_FAIL;
  36     }
  37 }
  38
  39 UnicodeString RequireCurrencyValidator::toString() const {
  40     return u"<ReqCurrency>";
  41 }
  42
  43
  44 RequireDecimalSeparatorValidator::RequireDecimalSeparatorValidator(bool patternHasDecimalSeparator)
  45         : fPatternHasDecimalSeparator(patternHasDecimalSeparator) {
  46 }
  47
  48 void RequireDecimalSeparatorValidator::postProcess(ParsedNumber& result) const {
  49     bool parseHasDecimalSeparator = 0 != (result.flags & FLAG_HAS_DECIMAL_SEPARATOR);
  50     if (parseHasDecimalSeparator != fPatternHasDecimalSeparator) {
  51         result.flags |= FLAG_FAIL;
  52     }
  53 }
  54
  55 UnicodeString RequireDecimalSeparatorValidator::toString() const {
  56     return u"<ReqDecimal>";
  57 }
  58
  59
  60 void RequireNumberValidator::postProcess(ParsedNumber& result) const {
  61     // Require that a number is matched.
  62     if (!result.seenNumber()) {
  63         result.flags |= FLAG_FAIL;
  64     }
  65 }
  66
  67 UnicodeString RequireNumberValidator::toString() const {
  68     return u"<ReqNumber>";
  69 }
  70
  71 MultiplierParseHandler::MultiplierParseHandler(::icu::number::Scale multiplier)
  72         : fMultiplier(std::move(multiplier)) {}
  73
  74 void MultiplierParseHandler::postProcess(ParsedNumber& result) const {
  75     if (!result.quantity.bogus) {
  76         fMultiplier.applyReciprocalTo(result.quantity);
  77         // NOTE: It is okay if the multiplier was negative.
  78     }
  79 }
  80
  81 UnicodeString MultiplierParseHandler::toString() const {
  82     return u"<Scale>";
  83 }
  84
  85 #endif /* #if !UCONFIG_NO_FORMATTING */