icuSources/i18n/numparse_validators.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 __SOURCE_NUMPARSE_VALIDATORS_H__
   8 #define __SOURCE_NUMPARSE_VALIDATORS_H__
   9
  10 #include "numparse_types.h"
  11 #include "static_unicode_sets.h"
  12
  13 U_NAMESPACE_BEGIN namespace numparse {
  14 namespace impl {
  15
  16
  17 class ValidationMatcher : public NumberParseMatcher {
  18   public:
  19     bool match(StringSegment&, ParsedNumber&, UErrorCode&) const U_OVERRIDE {
  20         // No-op
  21         return false;
  22     }
  23
  24     bool smokeTest(const StringSegment&) const U_OVERRIDE {
  25         // No-op
  26         return false;
  27     }
  28
  29     void postProcess(ParsedNumber& result) const U_OVERRIDE = 0;
  30 };
  31
  32
  33 class RequireAffixValidator : public ValidationMatcher, public UMemory {
  34   public:
  35     void postProcess(ParsedNumber& result) const U_OVERRIDE;
  36
  37     UnicodeString toString() const U_OVERRIDE;
  38 };
  39
  40
  41 class RequireCurrencyValidator : public ValidationMatcher, public UMemory {
  42   public:
  43     void postProcess(ParsedNumber& result) const U_OVERRIDE;
  44
  45     UnicodeString toString() const U_OVERRIDE;
  46 };
  47
  48
  49 class RequireDecimalSeparatorValidator : public ValidationMatcher, public UMemory {
  50   public:
  51     RequireDecimalSeparatorValidator() = default;  // leaves instance in valid but undefined state
  52
  53     RequireDecimalSeparatorValidator(bool patternHasDecimalSeparator);
  54
  55     void postProcess(ParsedNumber& result) const U_OVERRIDE;
  56
  57     UnicodeString toString() const U_OVERRIDE;
  58
  59   private:
  60     bool fPatternHasDecimalSeparator;
  61 };
  62
  63
  64 class RequireNumberValidator : public ValidationMatcher, public UMemory {
  65   public:
  66     void postProcess(ParsedNumber& result) const U_OVERRIDE;
  67
  68     UnicodeString toString() const U_OVERRIDE;
  69 };
  70
  71
  72 /**
  73  * Wraps a {@link Multiplier} for use in the number parsing pipeline.
  74  */
  75 class MultiplierParseHandler : public ValidationMatcher, public UMemory {
  76   public:
  77     MultiplierParseHandler() = default;  // leaves instance in valid but undefined state
  78
  79     MultiplierParseHandler(::icu::number::Scale multiplier);
  80
  81     void postProcess(ParsedNumber& result) const U_OVERRIDE;
  82
  83     UnicodeString toString() const U_OVERRIDE;
  84
  85   private:
  86     ::icu::number::Scale fMultiplier;
  87 };
  88
  89
  90 } // namespace impl
  91 } // namespace numparse
  92 U_NAMESPACE_END
  93
  94 #endif //__SOURCE_NUMPARSE_VALIDATORS_H__
  95 #endif /* #if !UCONFIG_NO_FORMATTING */