tor-browser

The Tor Browser
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numparse_validators.cpp (2514B)

      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 parseIsInfNaN = 0 != (result.flags & FLAG_INFINITY) || 0 != (result.flags & FLAG_NAN);
     50    bool parseHasDecimalSeparator = 0 != (result.flags & FLAG_HAS_DECIMAL_SEPARATOR);
     51    if (!parseIsInfNaN && parseHasDecimalSeparator != fPatternHasDecimalSeparator) {
     52        result.flags |= FLAG_FAIL;
     53    }
     54 }
     55 
     56 UnicodeString RequireDecimalSeparatorValidator::toString() const {
     57    return u"<ReqDecimal>";
     58 }
     59 
     60 
     61 void RequireNumberValidator::postProcess(ParsedNumber& result) const {
     62    // Require that a number is matched.
     63    if (!result.seenNumber()) {
     64        result.flags |= FLAG_FAIL;
     65    }
     66 }
     67 
     68 UnicodeString RequireNumberValidator::toString() const {
     69    return u"<ReqNumber>";
     70 }
     71 
     72 MultiplierParseHandler::MultiplierParseHandler(::icu::number::Scale multiplier)
     73        : fMultiplier(std::move(multiplier)) {}
     74 
     75 void MultiplierParseHandler::postProcess(ParsedNumber& result) const {
     76    if (!result.quantity.bogus) {
     77        fMultiplier.applyReciprocalTo(result.quantity);
     78        // NOTE: It is okay if the multiplier was negative.
     79    }
     80 }
     81 
     82 UnicodeString MultiplierParseHandler::toString() const {
     83    return u"<Scale>";
     84 }
     85 
     86 #endif /* #if !UCONFIG_NO_FORMATTING */