576 lines
16 KiB
C++
576 lines
16 KiB
C++
/*
|
|
*******************************************************************************
|
|
*
|
|
* Copyright (C) 2001, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*
|
|
*******************************************************************************
|
|
* file name: ucol_cnt.cpp
|
|
* encoding: US-ASCII
|
|
* tab size: 8 (not used)
|
|
* indentation:4
|
|
*
|
|
* created 02/22/2001
|
|
* created by: Vladimir Weinstein
|
|
*
|
|
* This module maintains a contraction table structure in expanded form
|
|
* and provides means to flatten this structure
|
|
*
|
|
*/
|
|
|
|
#include "unicode/utypes.h"
|
|
|
|
#if !UCONFIG_NO_COLLATION
|
|
|
|
#include "unicode/uchar.h"
|
|
#include "ucol_cnt.h"
|
|
#include "cmemory.h"
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
void uprv_growTable(ContractionTable *tbl, UErrorCode *status) {
|
|
if(tbl->position == tbl->size) {
|
|
uint32_t *newData = (uint32_t *)uprv_realloc(tbl->CEs, 2*tbl->size*sizeof(uint32_t));
|
|
if(newData == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return;
|
|
}
|
|
UChar *newCPs = (UChar *)uprv_realloc(tbl->codePoints, 2*tbl->size*sizeof(UChar));
|
|
if(newCPs == NULL) {
|
|
uprv_free(newData);
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return;
|
|
}
|
|
tbl->CEs = newData;
|
|
tbl->codePoints = newCPs;
|
|
tbl->size *= 2;
|
|
}
|
|
}
|
|
|
|
U_CAPI CntTable* U_EXPORT2
|
|
/*uprv_cnttab_open(CompactEIntArray *mapping, UErrorCode *status) {*/
|
|
uprv_cnttab_open(UNewTrie *mapping, UErrorCode *status) {
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
CntTable *tbl = (CntTable *)uprv_malloc(sizeof(CntTable));
|
|
if(tbl == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
tbl->mapping = mapping;
|
|
tbl->elements = (ContractionTable **)uprv_malloc(INIT_EXP_TABLE_SIZE*sizeof(ContractionTable *));
|
|
if(tbl->elements == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
uprv_free(tbl);
|
|
return NULL;
|
|
}
|
|
tbl->capacity = INIT_EXP_TABLE_SIZE;
|
|
uprv_memset(tbl->elements, 0, INIT_EXP_TABLE_SIZE*sizeof(ContractionTable *));
|
|
tbl->size = 0;
|
|
tbl->position = 0;
|
|
tbl->CEs = NULL;
|
|
tbl->codePoints = NULL;
|
|
tbl->offsets = NULL;
|
|
tbl->currentTag = NOT_FOUND_TAG;
|
|
return tbl;
|
|
}
|
|
|
|
static ContractionTable *addATableElement(CntTable *table, uint32_t *key, UErrorCode *status) {
|
|
ContractionTable *el = (ContractionTable *)uprv_malloc(sizeof(ContractionTable));
|
|
if(el == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
el->CEs = (uint32_t *)uprv_malloc(INIT_EXP_TABLE_SIZE*sizeof(uint32_t));
|
|
if(el->CEs == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
uprv_free(el);
|
|
return NULL;
|
|
}
|
|
|
|
el->codePoints = (UChar *)uprv_malloc(INIT_EXP_TABLE_SIZE*sizeof(UChar));
|
|
if(el->codePoints == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
uprv_free(el->CEs);
|
|
uprv_free(el);
|
|
return NULL;
|
|
}
|
|
|
|
el->position = 0;
|
|
el->size = INIT_EXP_TABLE_SIZE;
|
|
uprv_memset(el->CEs, 0, INIT_EXP_TABLE_SIZE*sizeof(uint32_t));
|
|
uprv_memset(el->codePoints, 0, INIT_EXP_TABLE_SIZE*sizeof(UChar));
|
|
|
|
table->elements[table->size] = el;
|
|
|
|
//uhash_put(table->elements, (void *)table->size, el, status);
|
|
|
|
*key = table->size++;
|
|
|
|
if(table->size == table->capacity) {
|
|
ContractionTable **newElements = (ContractionTable **)uprv_malloc(table->capacity*2*sizeof(ContractionTable *));
|
|
// do realloc
|
|
/* table->elements = (ContractionTable **)realloc(table->elements, table->capacity*2*sizeof(ContractionTable *));*/
|
|
if(newElements == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
uprv_free(el->codePoints);
|
|
uprv_free(el->CEs);
|
|
uprv_free(el);
|
|
return NULL;
|
|
} else {
|
|
ContractionTable **oldElements = table->elements;
|
|
uprv_memcpy(newElements, oldElements, table->capacity*sizeof(ContractionTable *));
|
|
uprv_memset(newElements+table->capacity, 0, table->capacity*sizeof(ContractionTable *));
|
|
table->capacity *= 2;
|
|
table->elements = newElements;
|
|
uprv_free(oldElements);
|
|
}
|
|
}
|
|
|
|
return el;
|
|
}
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
uprv_cnttab_constructTable(CntTable *table, uint32_t mainOffset, UErrorCode *status) {
|
|
int32_t i = 0, j = 0;
|
|
if(U_FAILURE(*status) || table->size == 0) {
|
|
return 0;
|
|
}
|
|
|
|
table->position = 0;
|
|
|
|
if(table->offsets != NULL) {
|
|
uprv_free(table->offsets);
|
|
}
|
|
table->offsets = (int32_t *)uprv_malloc(table->size*sizeof(int32_t));
|
|
if(table->offsets == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* See how much memory we need */
|
|
for(i = 0; i<table->size; i++) {
|
|
table->offsets[i] = table->position+mainOffset;
|
|
table->position += table->elements[i]->position;
|
|
}
|
|
|
|
/* Allocate it */
|
|
if(table->CEs != NULL) {
|
|
uprv_free(table->CEs);
|
|
}
|
|
table->CEs = (uint32_t *)uprv_malloc(table->position*sizeof(uint32_t));
|
|
if(table->CEs == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
uprv_free(table->offsets);
|
|
table->offsets = NULL;
|
|
return 0;
|
|
}
|
|
uprv_memset(table->CEs, '?', table->position*sizeof(uint32_t));
|
|
|
|
if(table->codePoints != NULL) {
|
|
uprv_free(table->codePoints);
|
|
}
|
|
table->codePoints = (UChar *)uprv_malloc(table->position*sizeof(UChar));
|
|
if(table->codePoints == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
uprv_free(table->offsets);
|
|
table->offsets = NULL;
|
|
uprv_free(table->CEs);
|
|
table->CEs = NULL;
|
|
return 0;
|
|
}
|
|
uprv_memset(table->codePoints, '?', table->position*sizeof(UChar));
|
|
|
|
/* Now stuff the things in*/
|
|
|
|
UChar *cpPointer = table->codePoints;
|
|
uint32_t *CEPointer = table->CEs;
|
|
for(i = 0; i<table->size; i++) {
|
|
int32_t size = table->elements[i]->position;
|
|
uint8_t ccMax = 0, ccMin = 255, cc = 0;
|
|
for(j = 1; j<size; j++) {
|
|
cc = u_getCombiningClass(table->elements[i]->codePoints[j]);
|
|
if(cc>ccMax) {
|
|
ccMax = cc;
|
|
}
|
|
if(cc<ccMin) {
|
|
ccMin = cc;
|
|
}
|
|
*(cpPointer+j) = table->elements[i]->codePoints[j];
|
|
}
|
|
*cpPointer = ((ccMin==ccMax)?1:0 << 8) | ccMax;
|
|
|
|
uprv_memcpy(CEPointer, table->elements[i]->CEs, size*sizeof(uint32_t));
|
|
for(j = 0; j<size; j++) {
|
|
if(isCntTableElement(*(CEPointer+j))) {
|
|
*(CEPointer+j) = constructContractCE(getCETag(*(CEPointer+j)), table->offsets[getContractOffset(*(CEPointer+j))]);
|
|
}
|
|
}
|
|
cpPointer += size;
|
|
CEPointer += size;
|
|
}
|
|
|
|
|
|
uint32_t CE;
|
|
for(i = 0; i<=0x10FFFF; i++) {
|
|
/*CE = ucmpe32_get(table->mapping, i);*/
|
|
CE = utrie_get32(table->mapping, i, NULL);
|
|
if(isCntTableElement(CE)) {
|
|
CE = constructContractCE(getCETag(CE), table->offsets[getContractOffset(CE)]);
|
|
/*ucmpe32_set(table->mapping, i, CE);*/
|
|
utrie_set32(table->mapping, i, CE);
|
|
}
|
|
}
|
|
|
|
|
|
return table->position;
|
|
}
|
|
|
|
ContractionTable *uprv_cnttab_cloneContraction(ContractionTable *t, UErrorCode *status) {
|
|
ContractionTable *r = (ContractionTable *)uprv_malloc(sizeof(ContractionTable));
|
|
if(r == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
|
|
r->position = t->position;
|
|
r->size = t->size;
|
|
|
|
r->codePoints = (UChar *)uprv_malloc(sizeof(UChar)*t->size);
|
|
r->CEs = (uint32_t *)uprv_malloc(sizeof(uint32_t)*t->size);
|
|
|
|
/* test for NULL */
|
|
if((r->codePoints == NULL) || (r->CEs == NULL)) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
uprv_memcpy(r->codePoints, t->codePoints, sizeof(UChar)*t->size);
|
|
uprv_memcpy(r->CEs, t->CEs, sizeof(uint32_t)*t->size);
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
U_CAPI CntTable* U_EXPORT2
|
|
uprv_cnttab_clone(CntTable *t, UErrorCode *status) {
|
|
if(U_FAILURE(*status)) {
|
|
return NULL;
|
|
}
|
|
int32_t i = 0;
|
|
CntTable *r = (CntTable *)uprv_malloc(sizeof(CntTable));
|
|
/* test for NULL */
|
|
if (r == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
r->position = t->position;
|
|
r->size = t->size;
|
|
r->capacity = t->capacity;
|
|
|
|
r->mapping = t->mapping;
|
|
|
|
r->elements = (ContractionTable **)uprv_malloc(t->capacity*sizeof(ContractionTable *));
|
|
/* test for NULL */
|
|
if (r->elements == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
//uprv_memcpy(r->elements, t->elements, t->capacity*sizeof(ContractionTable *));
|
|
|
|
for(i = 0; i<t->size; i++) {
|
|
r->elements[i] = uprv_cnttab_cloneContraction(t->elements[i], status);
|
|
}
|
|
|
|
if(t->CEs != NULL) {
|
|
r->CEs = (uint32_t *)uprv_malloc(t->position*sizeof(uint32_t));
|
|
/* test for NULL */
|
|
if (r->CEs == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
uprv_memcpy(r->CEs, t->CEs, t->position*sizeof(uint32_t));
|
|
} else {
|
|
r->CEs = NULL;
|
|
}
|
|
|
|
if(t->codePoints != NULL) {
|
|
r->codePoints = (UChar *)uprv_malloc(t->position*sizeof(UChar));
|
|
/* test for NULL */
|
|
if (r->codePoints == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
uprv_memcpy(r->codePoints, t->codePoints, t->position*sizeof(UChar));
|
|
} else {
|
|
r->codePoints = NULL;
|
|
}
|
|
|
|
if(t->offsets != NULL) {
|
|
r->offsets = (int32_t *)uprv_malloc(t->size*sizeof(int32_t));
|
|
/* test for NULL */
|
|
if (r->offsets == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
uprv_memcpy(r->offsets, t->offsets, t->size*sizeof(int32_t));
|
|
} else {
|
|
r->offsets = NULL;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
U_CAPI void U_EXPORT2
|
|
uprv_cnttab_close(CntTable *table) {
|
|
int32_t i = 0;
|
|
for(i = 0; i<table->size; i++) {
|
|
uprv_free(table->elements[i]->CEs);
|
|
uprv_free(table->elements[i]->codePoints);
|
|
uprv_free(table->elements[i]);
|
|
}
|
|
uprv_free(table->elements);
|
|
uprv_free(table->CEs);
|
|
uprv_free(table->offsets);
|
|
uprv_free(table->codePoints);
|
|
uprv_free(table);
|
|
}
|
|
|
|
/* this is for adding non contractions */
|
|
U_CAPI uint32_t U_EXPORT2
|
|
uprv_cnttab_changeLastCE(CntTable *table, uint32_t element, uint32_t value, UErrorCode *status) {
|
|
element &= 0xFFFFFF;
|
|
|
|
ContractionTable *tbl = NULL;
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
tbl->CEs[tbl->position-1] = value;
|
|
|
|
return(constructContractCE(table->currentTag, element));
|
|
}
|
|
|
|
|
|
/* inserts a part of contraction sequence in table. Sequences behind the offset are moved back. If element is non existent, it creates on. Returns element handle */
|
|
U_CAPI uint32_t U_EXPORT2
|
|
uprv_cnttab_insertContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UErrorCode *status) {
|
|
|
|
element &= 0xFFFFFF;
|
|
ContractionTable *tbl = NULL;
|
|
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
|
|
tbl = addATableElement(table, &element, status);
|
|
}
|
|
|
|
uprv_growTable(tbl, status);
|
|
|
|
uint32_t offset = 0;
|
|
|
|
|
|
while(tbl->codePoints[offset] < codePoint && offset<tbl->position) {
|
|
offset++;
|
|
}
|
|
|
|
uint32_t i = tbl->position;
|
|
for(i = tbl->position; i > offset; i--) {
|
|
tbl->CEs[i] = tbl->CEs[i-1];
|
|
tbl->codePoints[i] = tbl->codePoints[i-1];
|
|
}
|
|
|
|
tbl->CEs[offset] = value;
|
|
tbl->codePoints[offset] = codePoint;
|
|
|
|
tbl->position++;
|
|
|
|
return(constructContractCE(table->currentTag, element));
|
|
}
|
|
|
|
|
|
/* adds more contractions in table. If element is non existant, it creates on. Returns element handle */
|
|
U_CAPI uint32_t U_EXPORT2
|
|
uprv_cnttab_addContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UErrorCode *status) {
|
|
|
|
element &= 0xFFFFFF;
|
|
|
|
ContractionTable *tbl = NULL;
|
|
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
|
|
tbl = addATableElement(table, &element, status);
|
|
}
|
|
|
|
uprv_growTable(tbl, status);
|
|
|
|
tbl->CEs[tbl->position] = value;
|
|
tbl->codePoints[tbl->position] = codePoint;
|
|
|
|
tbl->position++;
|
|
|
|
return(constructContractCE(table->currentTag, element));
|
|
}
|
|
|
|
/* sets a part of contraction sequence in table. If element is non existant, it creates on. Returns element handle */
|
|
U_CAPI uint32_t U_EXPORT2
|
|
uprv_cnttab_setContraction(CntTable *table, uint32_t element, uint32_t offset, UChar codePoint, uint32_t value, UErrorCode *status) {
|
|
|
|
element &= 0xFFFFFF;
|
|
ContractionTable *tbl = NULL;
|
|
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
|
|
tbl = addATableElement(table, &element, status);
|
|
}
|
|
|
|
if(offset >= tbl->size) {
|
|
*status = U_INDEX_OUTOFBOUNDS_ERROR;
|
|
return 0;
|
|
}
|
|
tbl->CEs[offset] = value;
|
|
tbl->codePoints[offset] = codePoint;
|
|
|
|
//return(offset);
|
|
return(constructContractCE(table->currentTag, element));
|
|
}
|
|
|
|
static ContractionTable *_cnttab_getContractionTable(CntTable *table, uint32_t element) {
|
|
element &= 0xFFFFFF;
|
|
ContractionTable *tbl = NULL;
|
|
|
|
if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
|
|
return NULL;
|
|
} else {
|
|
return tbl;
|
|
}
|
|
}
|
|
|
|
static int32_t _cnttab_findCP(ContractionTable *tbl, UChar codePoint) {
|
|
uint32_t position = 0;
|
|
if(tbl == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
while(codePoint > tbl->codePoints[position]) {
|
|
position++;
|
|
if(position > tbl->position) {
|
|
return -1;
|
|
}
|
|
}
|
|
if (codePoint == tbl->codePoints[position]) {
|
|
return position;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static uint32_t _cnttab_getCE(ContractionTable *tbl, int32_t position) {
|
|
if(tbl == NULL) {
|
|
return UCOL_NOT_FOUND;
|
|
}
|
|
if((uint32_t)position > tbl->position || position == -1) {
|
|
return UCOL_NOT_FOUND;
|
|
} else {
|
|
return tbl->CEs[position];
|
|
}
|
|
}
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
uprv_cnttab_findCP(CntTable *table, uint32_t element, UChar codePoint, UErrorCode *status) {
|
|
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
return _cnttab_findCP(_cnttab_getContractionTable(table, element), codePoint);
|
|
}
|
|
|
|
U_CAPI uint32_t U_EXPORT2
|
|
uprv_cnttab_getCE(CntTable *table, uint32_t element, uint32_t position, UErrorCode *status) {
|
|
if(U_FAILURE(*status)) {
|
|
return UCOL_NOT_FOUND;
|
|
}
|
|
|
|
return(_cnttab_getCE(_cnttab_getContractionTable(table, element), position));
|
|
}
|
|
|
|
U_CAPI uint32_t U_EXPORT2
|
|
uprv_cnttab_findCE(CntTable *table, uint32_t element, UChar codePoint, UErrorCode *status) {
|
|
if(U_FAILURE(*status)) {
|
|
return UCOL_NOT_FOUND;
|
|
}
|
|
ContractionTable *tbl = _cnttab_getContractionTable(table, element);
|
|
return _cnttab_getCE(tbl, _cnttab_findCP(tbl, codePoint));
|
|
}
|
|
|
|
U_CAPI UBool U_EXPORT2
|
|
uprv_cnttab_isTailored(CntTable *table, uint32_t element, UChar *ztString, UErrorCode *status) {
|
|
if(U_FAILURE(*status)) {
|
|
return FALSE;
|
|
}
|
|
|
|
while(*(ztString)!=0) {
|
|
element = uprv_cnttab_findCE(table, element, *(ztString), status);
|
|
if(element == UCOL_NOT_FOUND) {
|
|
return FALSE;
|
|
}
|
|
if(!isCntTableElement(element)) {
|
|
return TRUE;
|
|
}
|
|
ztString++;
|
|
}
|
|
if(uprv_cnttab_getCE(table, element, 0, status) != UCOL_NOT_FOUND) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
U_CAPI uint32_t U_EXPORT2
|
|
uprv_cnttab_changeContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t newCE, UErrorCode *status) {
|
|
|
|
element &= 0xFFFFFF;
|
|
ContractionTable *tbl = NULL;
|
|
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
uint32_t position = 0;
|
|
|
|
while(codePoint > tbl->codePoints[position]) {
|
|
position++;
|
|
if(position > tbl->position) {
|
|
return UCOL_NOT_FOUND;
|
|
}
|
|
}
|
|
if (codePoint == tbl->codePoints[position]) {
|
|
tbl->CEs[position] = newCE;
|
|
return element;
|
|
} else {
|
|
return UCOL_NOT_FOUND;
|
|
}
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_COLLATION */
|