icuSources/i18n/digitgrouping.cpp

   1 /*
   2  * Copyright (C) 2015, International Business Machines
   3  * Corporation and others.  All Rights Reserved.
   4  *
   5  * file name: digitgrouping.cpp
   6  */
   7
   8 #include "unicode/utypes.h"
   9
  10 #include "digitgrouping.h"
  11 #include "smallintformatter.h"
  12
  13 U_NAMESPACE_BEGIN
  14
  15 UBool DigitGrouping::isSeparatorAt(
  16         int32_t digitsLeftOfDecimal, int32_t digitPos) const {
  17     if (!isGroupingEnabled(digitsLeftOfDecimal) || digitPos < fGrouping) {
  18         return FALSE;
  19     }
  20     return ((digitPos - fGrouping) % getGrouping2() == 0);
  21 }
  22
  23 int32_t DigitGrouping::getSeparatorCount(int32_t digitsLeftOfDecimal) const {
  24     if (!isGroupingEnabled(digitsLeftOfDecimal)) {
  25         return 0;
  26     }
  27     return (digitsLeftOfDecimal - 1 - fGrouping) / getGrouping2() + 1;
  28 }
  29
  30 UBool DigitGrouping::isGroupingEnabled(int32_t digitsLeftOfDecimal) const {
  31     return (isGroupingUsed()
  32             && digitsLeftOfDecimal >= fGrouping + getMinGrouping());
  33 }
  34
  35 UBool DigitGrouping::isNoGrouping(
  36         int32_t positiveValue, const IntDigitCountRange &range) const {
  37     return getSeparatorCount(
  38             SmallIntFormatter::estimateDigitCount(positiveValue, range)) == 0;
  39 }
  40
  41 int32_t DigitGrouping::getGrouping2() const {
  42     return (fGrouping2 > 0 ? fGrouping2 : fGrouping);
  43 }
  44
  45 int32_t DigitGrouping::getMinGrouping() const {
  46     return (fMinGrouping > 0 ? fMinGrouping : 1);
  47 }
  48
  49 void
  50 DigitGrouping::clear() {
  51     fMinGrouping = 0;
  52     fGrouping = 0;
  53     fGrouping2 = 0;
  54 }
  55
  56 U_NAMESPACE_END
  57