63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
/*
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**********************************************************************
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* Copyright (C) 1999, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* Date Name Description
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* 11/17/99 aliu Creation.
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**********************************************************************
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*/
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#include "rbt_data.h"
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#include "hash.h"
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#include "unicode/unistr.h"
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TransliterationRuleData::TransliterationRuleData(UErrorCode& status) :
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variableNames(0), setVariables(0) {
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if (U_FAILURE(status)) {
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return;
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}
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variableNames = new Hashtable(status);
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setVariables = 0;
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setVariablesLength = 0;
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}
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TransliterationRuleData::~TransliterationRuleData() {
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delete variableNames;
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delete[] setVariables;
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}
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void
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TransliterationRuleData::defineVariable(const UnicodeString& name,
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UChar value,
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UErrorCode& status) {
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int32_t v = value | 0x10000; // Set bit 16
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variableNames->put(name, (void*) v, status);
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}
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UChar
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TransliterationRuleData::lookupVariable(const UnicodeString& name,
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UErrorCode& status) const {
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if (U_FAILURE(status)) {
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return 0;
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}
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void* value = variableNames->get(name);
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/* Even U+0000 can be stored in the table because we set
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* bit 16 in defineVariable().
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*/
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if (value == 0) {
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status = U_ILLEGAL_ARGUMENT_ERROR;
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}
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return (UChar) (int32_t) (unsigned long) value;
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}
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const UnicodeSet*
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TransliterationRuleData::lookupSet(UChar standIn) const {
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int32_t i = standIn - setVariablesBase;
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return (i >= 0 && i < setVariablesLength) ? setVariables[i] : 0;
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}
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bool_t
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TransliterationRuleData::isVariableDefined(const UnicodeString& name) const {
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return 0 != variableNames->get(name);
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}
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