icuSources/i18n/digitgrouping.cpp

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4  * Copyright (C) 2015, International Business Machines
   5  * Corporation and others.  All Rights Reserved.
   6  *
   7  * file name: digitgrouping.cpp
   8  */
   9
  10 #include "unicode/utypes.h"
  11
  12 #include "digitgrouping.h"
  13 #include "smallintformatter.h"
  14
  15 U_NAMESPACE_BEGIN
  16
  17 UBool DigitGrouping::isSeparatorAt(
  18         int32_t digitsLeftOfDecimal, int32_t digitPos) const {
  19     if (!isGroupingEnabled(digitsLeftOfDecimal) || digitPos < fGrouping) {
  20         return FALSE;
  21     }
  22     return ((digitPos - fGrouping) % getGrouping2() == 0);
  23 }
  24
  25 int32_t DigitGrouping::getSeparatorCount(int32_t digitsLeftOfDecimal) const {
  26     if (!isGroupingEnabled(digitsLeftOfDecimal)) {
  27         return 0;
  28     }
  29     return (digitsLeftOfDecimal - 1 - fGrouping) / getGrouping2() + 1;
  30 }
  31
  32 UBool DigitGrouping::isGroupingEnabled(int32_t digitsLeftOfDecimal) const {
  33     return (isGroupingUsed()
  34             && digitsLeftOfDecimal >= fGrouping + getMinGrouping());
  35 }
  36
  37 UBool DigitGrouping::isNoGrouping(
  38         int32_t positiveValue, const IntDigitCountRange &range) const {
  39     return getSeparatorCount(
  40             SmallIntFormatter::estimateDigitCount(positiveValue, range)) == 0;
  41 }
  42
  43 int32_t DigitGrouping::getGrouping2() const {
  44     return (fGrouping2 > 0 ? fGrouping2 : fGrouping);
  45 }
  46
  47 int32_t DigitGrouping::getMinGrouping() const {
  48     return (fMinGrouping > 0 ? fMinGrouping : 1);
  49 }
  50
  51 void
  52 DigitGrouping::clear() {
  53     fMinGrouping = 0;
  54     fGrouping = 0;
  55     fGrouping2 = 0;
  56 }
  57
  58 U_NAMESPACE_END
  59