icuSources/i18n/rbt_data.cpp

   1 /*
   2 **********************************************************************
   3 *   Copyright (C) 1999-2006, International Business Machines
   4 *   Corporation and others.  All Rights Reserved.
   5 **********************************************************************
   6 *   Date        Name        Description
   7 *   11/17/99    aliu        Creation.
   8 **********************************************************************
   9 */
  10
  11 #include "unicode/utypes.h"
  12 #include "umutex.h"
  13
  14 #if !UCONFIG_NO_TRANSLITERATION
  15
  16 #include "unicode/unistr.h"
  17 #include "unicode/uniset.h"
  18 #include "rbt_data.h"
  19 #include "hash.h"
  20 #include "cmemory.h"
  21
  22 U_NAMESPACE_BEGIN
  23
  24 TransliterationRuleData::TransliterationRuleData(UErrorCode& status)
  25  : UMemory(), ruleSet(status), variableNames(status),
  26     variables(0), variablesAreOwned(TRUE)
  27 {
  28     if (U_FAILURE(status)) {
  29         return;
  30     }
  31     variableNames.setValueDeleter(uhash_deleteUnicodeString);
  32     variables = 0;
  33     variablesLength = 0;
  34 }
  35
  36 TransliterationRuleData::TransliterationRuleData(const TransliterationRuleData& other) :
  37     UMemory(other), ruleSet(other.ruleSet),
  38     variablesAreOwned(TRUE),
  39     variablesBase(other.variablesBase),
  40     variablesLength(other.variablesLength)
  41 {
  42     UErrorCode status = U_ZERO_ERROR;
  43     variableNames.setValueDeleter(uhash_deleteUnicodeString);
  44     int32_t pos = -1;
  45     const UHashElement *e;
  46     while ((e = other.variableNames.nextElement(pos)) != 0) {
  47         UnicodeString* value =
  48             new UnicodeString(*(const UnicodeString*)e->value.pointer);
  49         variableNames.put(*(UnicodeString*)e->key.pointer, value, status);
  50     }
  51
  52     variables = 0;
  53     if (other.variables != 0) {
  54         variables = (UnicodeFunctor **)uprv_malloc(variablesLength * sizeof(UnicodeFunctor *));
  55         /* test for NULL */
  56         if (variables == 0) {
  57             status = U_MEMORY_ALLOCATION_ERROR;
  58             return;
  59         }
  60         for (int32_t i=0; i<variablesLength; ++i) {
  61             variables[i] = other.variables[i]->clone();
  62         }
  63     }
  64
  65     // Do this last, _after_ setting up variables[].
  66     ruleSet.setData(this); // ruleSet must already be frozen
  67 }
  68
  69 TransliterationRuleData::~TransliterationRuleData() {
  70     if (variablesAreOwned && variables != 0) {
  71         for (int32_t i=0; i<variablesLength; ++i) {
  72             delete variables[i];
  73         }
  74     }
  75     uprv_free(variables);
  76 }
  77
  78 UnicodeFunctor*
  79 TransliterationRuleData::lookup(UChar32 standIn) const {
  80     int32_t i = standIn - variablesBase;
  81     return (i >= 0 && i < variablesLength) ? variables[i] : 0;
  82 }
  83
  84 UnicodeMatcher*
  85 TransliterationRuleData::lookupMatcher(UChar32 standIn) const {
  86     UnicodeFunctor *f = lookup(standIn);
  87     return (f != 0) ? f->toMatcher() : 0;
  88 }
  89
  90 UnicodeReplacer*
  91 TransliterationRuleData::lookupReplacer(UChar32 standIn) const {
  92     UnicodeFunctor *f = lookup(standIn);
  93     return (f != 0) ? f->toReplacer() : 0;
  94 }
  95
  96
  97 U_NAMESPACE_END
  98
  99 #endif /* #if !UCONFIG_NO_TRANSLITERATION */