Home | History | Annotate | Download | only in i18n 
      1 //  2017 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 __NUMBER_UTILS_H__
      8 #define __NUMBER_UTILS_H__
      9 
     10 #include "unicode/numberformatter.h"
     11 #include "number_types.h"
     12 #include "number_decimalquantity.h"
     13 #include "number_scientific.h"
     14 #include "number_patternstring.h"
     15 #include "number_modifiers.h"
     16 #include "number_multiplier.h"
     17 #include "number_roundingutils.h"
     18 #include "decNumber.h"
     19 #include "charstr.h"
     20 
     21 U_NAMESPACE_BEGIN
     22 
     23 namespace number {
     24 namespace impl {
     25 
     26 enum CldrPatternStyle {
     27     CLDR_PATTERN_STYLE_DECIMAL,
     28     CLDR_PATTERN_STYLE_CURRENCY,
     29     CLDR_PATTERN_STYLE_ACCOUNTING,
     30     CLDR_PATTERN_STYLE_PERCENT,
     31     CLDR_PATTERN_STYLE_SCIENTIFIC,
     32     CLDR_PATTERN_STYLE_COUNT,
     33 };
     34 
     35 // Namespace for naked functions
     36 namespace utils {
     37 
     38 inline int32_t insertDigitFromSymbols(NumberStringBuilder& output, int32_t index, int8_t digit,
     39                                       const DecimalFormatSymbols& symbols, Field field,
     40                                       UErrorCode& status) {
     41     if (symbols.getCodePointZero() != -1) {
     42         return output.insertCodePoint(index, symbols.getCodePointZero() + digit, field, status);
     43     }
     44     return output.insert(index, symbols.getConstDigitSymbol(digit), field, status);
     45 }
     46 
     47 inline bool unitIsCurrency(const MeasureUnit& unit) {
     48     return uprv_strcmp("currency", unit.getType()) == 0;
     49 }
     50 
     51 inline bool unitIsNoUnit(const MeasureUnit& unit) {
     52     return uprv_strcmp("none", unit.getType()) == 0;
     53 }
     54 
     55 inline bool unitIsPercent(const MeasureUnit& unit) {
     56     return uprv_strcmp("percent", unit.getSubtype()) == 0;
     57 }
     58 
     59 inline bool unitIsPermille(const MeasureUnit& unit) {
     60     return uprv_strcmp("permille", unit.getSubtype()) == 0;
     61 }
     62 
     63 // NOTE: In Java, this method is in NumberFormat.java
     64 const char16_t*
     65 getPatternForStyle(const Locale& locale, const char* nsName, CldrPatternStyle style, UErrorCode& status);
     66 
     67 /**
     68  * Computes the plural form for this number based on the specified set of rules.
     69  *
     70  * @param rules A {@link PluralRules} object representing the set of rules.
     71  * @return The {@link StandardPlural} according to the PluralRules. If the plural form is not in
     72  *     the set of standard plurals, {@link StandardPlural#OTHER} is returned instead.
     73  */
     74 inline StandardPlural::Form getStandardPlural(const PluralRules *rules,
     75                                               const IFixedDecimal &fdec) {
     76     if (rules == nullptr) {
     77         // Fail gracefully if the user didn't provide a PluralRules
     78         return StandardPlural::Form::OTHER;
     79     } else {
     80         UnicodeString ruleString = rules->select(fdec);
     81         return StandardPlural::orOtherFromString(ruleString);
     82     }
     83 }
     84 
     85 } // namespace utils
     86 
     87 } // namespace impl
     88 } // namespace number
     89 
     90 U_NAMESPACE_END
     91 
     92 #endif //__NUMBER_UTILS_H__
     93 
     94 #endif /* #if !UCONFIG_NO_FORMATTING */
     95