tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

number_asformat.cpp (4153B)

      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 <stdlib.h>
     13 #include <cmath>
     14 #include "number_asformat.h"
     15 #include "number_types.h"
     16 #include "number_utils.h"
     17 #include "fphdlimp.h"
     18 #include "number_utypes.h"
     19 
     20 using namespace icu;
     21 using namespace icu::number;
     22 using namespace icu::number::impl;
     23 
     24 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(LocalizedNumberFormatterAsFormat)
     25 
     26 LocalizedNumberFormatterAsFormat::LocalizedNumberFormatterAsFormat(
     27        const LocalizedNumberFormatter& formatter, const Locale& locale)
     28        : fFormatter(formatter), fLocale(locale) {
     29    const char* localeName = locale.getName();
     30    setLocaleIDs(localeName, localeName);
     31 }
     32 
     33 LocalizedNumberFormatterAsFormat::~LocalizedNumberFormatterAsFormat() = default;
     34 
     35 bool LocalizedNumberFormatterAsFormat::operator==(const Format& other) const {
     36    const auto* _other = dynamic_cast<const LocalizedNumberFormatterAsFormat*>(&other);
     37    if (_other == nullptr) {
     38        return false;
     39    }
     40    // TODO: Change this to use LocalizedNumberFormatter::operator== if it is ever proposed.
     41    // This implementation is fine, but not particularly efficient.
     42    UErrorCode localStatus = U_ZERO_ERROR;
     43    return fFormatter.toSkeleton(localStatus) == _other->fFormatter.toSkeleton(localStatus);
     44 }
     45 
     46 LocalizedNumberFormatterAsFormat* LocalizedNumberFormatterAsFormat::clone() const {
     47    return new LocalizedNumberFormatterAsFormat(*this);
     48 }
     49 
     50 UnicodeString& LocalizedNumberFormatterAsFormat::format(const Formattable& obj, UnicodeString& appendTo,
     51                                                        FieldPosition& pos, UErrorCode& status) const {
     52    if (U_FAILURE(status)) { return appendTo; }
     53    UFormattedNumberData data;
     54    obj.populateDecimalQuantity(data.quantity, status);
     55    if (U_FAILURE(status)) {
     56        return appendTo;
     57    }
     58    fFormatter.formatImpl(&data, status);
     59    if (U_FAILURE(status)) {
     60        return appendTo;
     61    }
     62    // always return first occurrence:
     63    pos.setBeginIndex(0);
     64    pos.setEndIndex(0);
     65    bool found = data.nextFieldPosition(pos, status);
     66    if (found && appendTo.length() != 0) {
     67        pos.setBeginIndex(pos.getBeginIndex() + appendTo.length());
     68        pos.setEndIndex(pos.getEndIndex() + appendTo.length());
     69    }
     70    appendTo.append(data.toTempString(status));
     71    return appendTo;
     72 }
     73 
     74 UnicodeString& LocalizedNumberFormatterAsFormat::format(const Formattable& obj, UnicodeString& appendTo,
     75                                                        FieldPositionIterator* posIter,
     76                                                        UErrorCode& status) const {
     77    if (U_FAILURE(status)) { return appendTo; }
     78    UFormattedNumberData data;
     79    obj.populateDecimalQuantity(data.quantity, status);
     80    if (U_FAILURE(status)) {
     81        return appendTo;
     82    }
     83    fFormatter.formatImpl(&data, status);
     84    if (U_FAILURE(status)) {
     85        return appendTo;
     86    }
     87    appendTo.append(data.toTempString(status));
     88    if (posIter != nullptr) {
     89        FieldPositionIteratorHandler fpih(posIter, status);
     90        data.getAllFieldPositions(fpih, status);
     91    }
     92    return appendTo;
     93 }
     94 
     95 void LocalizedNumberFormatterAsFormat::parseObject(const UnicodeString&, Formattable&,
     96                                                   ParsePosition& parse_pos) const {
     97    // Not supported.
     98    parse_pos.setErrorIndex(0);
     99 }
    100 
    101 const LocalizedNumberFormatter& LocalizedNumberFormatterAsFormat::getNumberFormatter() const {
    102    return fFormatter;
    103 }
    104 
    105 
    106 // Definitions of public API methods (put here for dependency disentanglement)
    107 
    108 Format* LocalizedNumberFormatter::toFormat(UErrorCode& status) const {
    109    if (U_FAILURE(status)) {
    110        return nullptr;
    111    }
    112    LocalPointer<LocalizedNumberFormatterAsFormat> retval(
    113            new LocalizedNumberFormatterAsFormat(*this, fMacros.locale), status);
    114    return retval.orphan();
    115 }
    116 
    117 #endif /* #if !UCONFIG_NO_FORMATTING */