michael@0: /*
michael@0: **********************************************************************
michael@0: *   Copyright (C) 1999-2011, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: **********************************************************************
michael@0: *   Date        Name        Description
michael@0: *   11/17/99    aliu        Creation.
michael@0: **********************************************************************
michael@0: */
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: #include "umutex.h"
michael@0: 
michael@0: #if !UCONFIG_NO_TRANSLITERATION
michael@0: 
michael@0: #include "unicode/unistr.h"
michael@0: #include "unicode/uniset.h"
michael@0: #include "rbt_data.h"
michael@0: #include "hash.h"
michael@0: #include "cmemory.h"
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: TransliterationRuleData::TransliterationRuleData(UErrorCode& status)
michael@0:  : UMemory(), ruleSet(status), variableNames(status),
michael@0:     variables(0), variablesAreOwned(TRUE)
michael@0: {
michael@0:     if (U_FAILURE(status)) {
michael@0:         return;
michael@0:     }
michael@0:     variableNames.setValueDeleter(uprv_deleteUObject);
michael@0:     variables = 0;
michael@0:     variablesLength = 0;
michael@0: }
michael@0: 
michael@0: TransliterationRuleData::TransliterationRuleData(const TransliterationRuleData& other) :
michael@0:     UMemory(other), ruleSet(other.ruleSet),
michael@0:     variablesAreOwned(TRUE),
michael@0:     variablesBase(other.variablesBase),
michael@0:     variablesLength(other.variablesLength)
michael@0: {
michael@0:     UErrorCode status = U_ZERO_ERROR;
michael@0:     int32_t i = 0;
michael@0:     variableNames.setValueDeleter(uprv_deleteUObject);
michael@0:     int32_t pos = -1;
michael@0:     const UHashElement *e;
michael@0:     while ((e = other.variableNames.nextElement(pos)) != 0) {
michael@0:         UnicodeString* value =
michael@0:             new UnicodeString(*(const UnicodeString*)e->value.pointer);
michael@0:         // Exit out if value could not be created.
michael@0:         if (value == NULL) {
michael@0:         	return;
michael@0:         }
michael@0:         variableNames.put(*(UnicodeString*)e->key.pointer, value, status);
michael@0:     }
michael@0: 
michael@0:     variables = 0;
michael@0:     if (other.variables != 0) {
michael@0:         variables = (UnicodeFunctor **)uprv_malloc(variablesLength * sizeof(UnicodeFunctor *));
michael@0:         /* test for NULL */
michael@0:         if (variables == 0) {
michael@0:             status = U_MEMORY_ALLOCATION_ERROR;
michael@0:             return;
michael@0:         }
michael@0:         for (i=0; i<variablesLength; ++i) {
michael@0:             variables[i] = other.variables[i]->clone();
michael@0:             if (variables[i] == NULL) {
michael@0:                 status = U_MEMORY_ALLOCATION_ERROR;
michael@0:                 break;
michael@0:             }
michael@0:         }
michael@0:     }
michael@0:     // Remove the array and exit if memory allocation error occured.
michael@0:     if (U_FAILURE(status)) {
michael@0:         for (int32_t n = i-1; n >= 0; n++) {
michael@0:             delete variables[n];
michael@0:         }
michael@0:         uprv_free(variables);
michael@0:         variables = NULL;
michael@0:         return;
michael@0:     }
michael@0: 
michael@0:     // Do this last, _after_ setting up variables[].
michael@0:     ruleSet.setData(this); // ruleSet must already be frozen
michael@0: }
michael@0: 
michael@0: TransliterationRuleData::~TransliterationRuleData() {
michael@0:     if (variablesAreOwned && variables != 0) {
michael@0:         for (int32_t i=0; i<variablesLength; ++i) {
michael@0:             delete variables[i];
michael@0:         }
michael@0:     }
michael@0:     uprv_free(variables);
michael@0: }
michael@0: 
michael@0: UnicodeFunctor*
michael@0: TransliterationRuleData::lookup(UChar32 standIn) const {
michael@0:     int32_t i = standIn - variablesBase;
michael@0:     return (i >= 0 && i < variablesLength) ? variables[i] : 0;
michael@0: }
michael@0: 
michael@0: UnicodeMatcher*
michael@0: TransliterationRuleData::lookupMatcher(UChar32 standIn) const {
michael@0:     UnicodeFunctor *f = lookup(standIn);
michael@0:     return (f != 0) ? f->toMatcher() : 0;
michael@0: }
michael@0: 
michael@0: UnicodeReplacer*
michael@0: TransliterationRuleData::lookupReplacer(UChar32 standIn) const {
michael@0:     UnicodeFunctor *f = lookup(standIn);
michael@0:     return (f != 0) ? f->toReplacer() : 0;
michael@0: }
michael@0: 
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: #endif /* #if !UCONFIG_NO_TRANSLITERATION */