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ICU-1076 remove limit of 9 segments

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X-SVN-Rev: 5378
This commit is contained in:
Alan Liu 2001-07-30 23:22:51 +00:00
parent 16c2014b35
commit 3fe96feba6
2 changed files with 9 additions and 6 deletions
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4
icu4c/source/i18n/rbt_data.cpp
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@ -71,6 +71,6 @@ TransliterationRuleData::lookup(UChar32 standIn) const {
int32_t
TransliterationRuleData::lookupSegmentReference(UChar32 c) const {
int32_t i = c - segmentBase;
return (i >= 0 && i < 9) ? i : -1;
int32_t i = segmentBase - c;
return (i >= 0 && i < segmentCount) ? i : -1;
}

11
icu4c/source/i18n/rbt_data.h
View File

@ -78,10 +78,13 @@ public:
/**
* The character that represents segment 1. Characters segmentBase
* through segmentBase + 8 represent segments 1 through 9.
* through segmentBase - segmentCount + 1 represent segments 1
* through segmentCount. Segments work down while variables work up.
*/
UChar segmentBase;
int32_t segmentCount;
public:
TransliterationRuleData(UErrorCode& status);
@ -99,16 +102,16 @@ public:
/**
* Return the zero-based index of the segment represented by the given
* character, or -1 if none. Repeat: This is a zero-based return value,
* 0..8, even though these are notated "$1".."$9".
* 0..n-1, even though these are notated "$1".."$n", where n is segmentCount.
*/
int32_t lookupSegmentReference(UChar32 c) const;
/**
* Return the character used to stand for the given segment reference.
* The reference must be in the range 1..9.
* The reference must be in the range 1..segmentCount.
*/
UChar getSegmentStandin(int32_t ref) const {
return (UChar)(segmentBase + ref - 1);
return (UChar)(segmentBase - ref + 1);
}
};