416 lines
12 KiB
C++
416 lines
12 KiB
C++
/*
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*******************************************************************************
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*
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* Copyright (C) 2001, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: ucol_tok.cpp
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created 02/22/2001
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* created by: Vladimir Weinstein
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*
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* This module maintains a contraction table structure in expanded form
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* and provides means to flatten this structure
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*
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*/
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#include "ucol_cnt.h"
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#include "cmemory.h"
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void uprv_growTable(ContractionTable *tbl, UErrorCode *status) {
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if(tbl->position == tbl->size) {
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uint32_t *newData = (uint32_t *)realloc(tbl->CEs, 2*tbl->size*sizeof(uint32_t));
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UChar *newCPs = (UChar *)realloc(tbl->codePoints, 2*tbl->size*sizeof(UChar));
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if(newData == NULL || newCPs == NULL) {
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fprintf(stderr, "out of memory for contractions\n");
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*status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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tbl->CEs = newData;
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tbl->codePoints = newCPs;
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tbl->size *= 2;
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}
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}
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CntTable *uprv_cnttab_open(CompactIntArray *mapping, UErrorCode *status) {
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if(U_FAILURE(*status)) {
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return 0;
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}
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CntTable *tbl = (CntTable *)malloc(sizeof(CntTable));
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tbl->mapping = mapping;
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//tbl->elements = uhash_open(uhash_hashLong, uhash_compareLong, status);
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//uhash_setValueDeleter(tbl->elements, deleteCntElement);
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tbl->elements = (ContractionTable **)malloc(INIT_EXP_TABLE_SIZE*sizeof(ContractionTable *));
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tbl->capacity = INIT_EXP_TABLE_SIZE;
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memset(tbl->elements, 0, INIT_EXP_TABLE_SIZE*sizeof(ContractionTable *));
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tbl->size = 0;
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tbl->position = 0;
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tbl->CEs = NULL;
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tbl->codePoints = NULL;
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tbl->offsets = NULL;
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return tbl;
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}
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ContractionTable *addATableElement(CntTable *table, uint32_t *key, UErrorCode *status) {
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ContractionTable *el = (ContractionTable *)malloc(sizeof(ContractionTable));
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el->CEs = (uint32_t *)malloc(INIT_EXP_TABLE_SIZE*sizeof(uint32_t));
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el->codePoints = (UChar *)malloc(INIT_EXP_TABLE_SIZE*sizeof(UChar));
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el->position = 0;
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el->size = INIT_EXP_TABLE_SIZE;
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el->forward = TRUE;
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memset(el->CEs, 'F', INIT_EXP_TABLE_SIZE*sizeof(uint32_t));
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memset(el->codePoints, 'F', INIT_EXP_TABLE_SIZE*sizeof(UChar));
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el->reversed = (ContractionTable *)malloc(sizeof(ContractionTable));
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el->reversed->CEs = (uint32_t *)malloc(INIT_EXP_TABLE_SIZE*sizeof(uint32_t));
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el->reversed->codePoints = (UChar *)malloc(INIT_EXP_TABLE_SIZE*sizeof(UChar));
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el->reversed->position = 0;
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el->reversed->size = INIT_EXP_TABLE_SIZE;
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el->reversed->forward = FALSE;
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memset(el->reversed->CEs, 'R', INIT_EXP_TABLE_SIZE*sizeof(uint32_t));
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memset(el->reversed->codePoints, 'R', INIT_EXP_TABLE_SIZE*sizeof(UChar));
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table->elements[table->size] = el;
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//uhash_put(table->elements, (void *)table->size, el, status);
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*key = table->size++;
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if(table->size > table->capacity) {
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// do realloc
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*status = U_MEMORY_ALLOCATION_ERROR;
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}
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return el;
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}
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int32_t uprv_cnttab_moveTable(CntTable *table, uint32_t oldOffset, uint32_t newOffset, UErrorCode *status) {
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uint32_t i, CE;
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int32_t difference = newOffset - oldOffset;
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if(U_FAILURE(*status)) {
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return 0;
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}
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for(i = 0; i<=0xFFFF; i++) {
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CE = ucmp32_get(table->mapping, i);
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if(isContraction(CE)) {
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CE = constructContractCE(getContractOffset(CE)+difference);
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ucmp32_set(table->mapping, (UChar)i, CE);
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}
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}
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return table->position;
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}
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int32_t uprv_cnttab_constructTable(CntTable *table, uint32_t mainOffset, UErrorCode *status) {
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int32_t i = 0, j = 0;
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if(U_FAILURE(*status) || table->size == 0) {
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return 0;
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}
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table->position = 0;
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if(table->offsets != NULL) {
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free(table->offsets);
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}
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table->offsets = (int32_t *)malloc(table->size*sizeof(int32_t));
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/* See how much memory we need */
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for(i = 0; i<table->size; i++) {
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table->offsets[i] = table->position+mainOffset;
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table->position += table->elements[i]->position;
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if(table->elements[i]->reversed->position > 0) {
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table->elements[i]->codePoints[0] = (UChar)(table->elements[i]->position); /* set offset for backwards table */
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table->position += table->elements[i]->reversed->position;
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}
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}
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/* Allocate it */
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if(table->CEs != NULL) {
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free(table->CEs);
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}
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table->CEs = (uint32_t *)malloc(table->position*sizeof(uint32_t));
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memset(table->CEs, '?', table->position*sizeof(uint32_t));
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if(table->codePoints != NULL) {
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free(table->codePoints);
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}
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table->codePoints = (UChar *)malloc(table->position*sizeof(UChar));
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memset(table->codePoints, '?', table->position*sizeof(UChar));
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/* Now stuff the things in*/
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UChar *cpPointer = table->codePoints;
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uint32_t *CEPointer = table->CEs;
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for(i = 0; i<table->size; i++) {
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int32_t size = table->elements[i]->position;
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memcpy(cpPointer, table->elements[i]->codePoints, size*sizeof(UChar));
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memcpy(CEPointer, table->elements[i]->CEs, size*sizeof(uint32_t));
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for(j = 0; j<size; j++) {
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if(isContraction(*(CEPointer+j))) {
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*(CEPointer+j) = constructContractCE(table->offsets[getContractOffset(*(CEPointer+j))]);
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}
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}
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cpPointer += size;
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CEPointer += size;
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if(table->elements[i]->reversed->position > 0) {
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int32_t size2 = table->elements[i]->reversed->position;
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memcpy(cpPointer, (table->elements[i]->reversed->codePoints), size2*sizeof(UChar));
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memcpy(CEPointer, (table->elements[i]->reversed->CEs), size2*sizeof(uint32_t));
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for(j = 0; j<size2; j++) {
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if(isContraction(*(CEPointer+j))) {
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*(CEPointer+j) = constructContractCE(table->offsets[getContractOffset(*(CEPointer+j))]);
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}
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}
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cpPointer += size2;
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CEPointer += size2;
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}
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}
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uint32_t CE;
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for(i = 0; i<=0xFFFF; i++) {
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CE = ucmp32_get(table->mapping, i);
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if(isContraction(CE)) {
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CE = constructContractCE(table->offsets[getContractOffset(CE)]);
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ucmp32_set(table->mapping, (UChar)i, CE);
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}
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}
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return table->position;
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}
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void uprv_cnttab_close(CntTable *table) {
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int32_t i = 0;
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for(i = 0; i<table->size; i++) {
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free(table->elements[i]->reversed->CEs);
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free(table->elements[i]->reversed->codePoints);
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free(table->elements[i]->reversed);
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free(table->elements[i]->CEs);
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free(table->elements[i]->codePoints);
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free(table->elements[i]);
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}
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free(table->elements);
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free(table->CEs);
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free(table->offsets);
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free(table->codePoints);
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free(table);
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}
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/* this is for adding non contractions */
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uint32_t uprv_cnttab_changeLastCE(CntTable *table, uint32_t element, uint32_t value, UBool forward, UErrorCode *status) {
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element &= 0xFFFFFF;
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ContractionTable *tbl = NULL;
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if(U_FAILURE(*status)) {
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return 0;
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}
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if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
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tbl = addATableElement(table, &element, status);
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}
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if(forward == TRUE) {
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tbl->CEs[tbl->position-1] = value;
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} else {
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tbl->reversed->CEs[tbl->reversed->position-1] = value;
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}
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return(constructContractCE(element));
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}
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/* 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 */
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uint32_t uprv_cnttab_insertContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UBool forward, UErrorCode *status) {
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element &= 0xFFFFFF;
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ContractionTable *tbl = NULL;
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if(U_FAILURE(*status)) {
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return 0;
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}
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if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
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tbl = addATableElement(table, &element, status);
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}
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if(forward == FALSE) {
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tbl = tbl->reversed;
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}
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uprv_growTable(tbl, status);
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int32_t offset = 0;
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while(tbl->codePoints[offset] < codePoint && offset<tbl->position) {
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offset++;
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}
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int32_t i = tbl->position;
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for(i = tbl->position; i > offset; i--) {
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tbl->CEs[i] = tbl->CEs[i-1];
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tbl->codePoints[i] = tbl->codePoints[i-1];
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}
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tbl->CEs[offset] = value;
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tbl->codePoints[offset] = codePoint;
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tbl->position++;
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return(constructContractCE(element));
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}
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/* adds more contractions in table. If element is non existant, it creates on. Returns element handle */
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uint32_t uprv_cnttab_addContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UBool forward, UErrorCode *status) {
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element &= 0xFFFFFF;
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ContractionTable *tbl = NULL;
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if(U_FAILURE(*status)) {
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return 0;
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}
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if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
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tbl = addATableElement(table, &element, status);
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}
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if(forward == FALSE) {
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tbl = tbl->reversed;
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}
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uprv_growTable(tbl, status);
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tbl->CEs[tbl->position] = value;
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tbl->codePoints[tbl->position] = codePoint;
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tbl->position++;
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return(constructContractCE(element));
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}
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/* sets a part of contraction sequence in table. If element is non existant, it creates on. Returns element handle */
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uint32_t uprv_cnttab_setContraction(CntTable *table, uint32_t element, int32_t offset, UChar codePoint, uint32_t value, UBool forward, UErrorCode *status) {
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element &= 0xFFFFFF;
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ContractionTable *tbl = NULL;
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if(U_FAILURE(*status)) {
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return 0;
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}
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if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
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tbl = addATableElement(table, &element, status);
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}
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if(forward == FALSE) {
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tbl = tbl->reversed;
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}
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if(offset >= tbl->size) {
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*status = U_INDEX_OUTOFBOUNDS_ERROR;
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return 0;
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}
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tbl->CEs[offset] = value;
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tbl->codePoints[offset] = codePoint;
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//return(offset);
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return(constructContractCE(element));
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}
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uint32_t uprv_cnttab_findCP(CntTable *table, uint32_t element, UChar codePoint, UBool forward, UErrorCode *status) {
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element &= 0xFFFFFF;
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ContractionTable *tbl = NULL;
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if(U_FAILURE(*status)) {
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return 0;
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}
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if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
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return 0;
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}
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if(forward == FALSE) {
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tbl = tbl->reversed;
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}
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int32_t position = 0;
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while(codePoint > tbl->codePoints[position]) {
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position++;
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if(position > tbl->position) {
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return 0;
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}
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}
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if (codePoint == tbl->codePoints[position]) {
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return position;
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} else {
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return 0;
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}
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}
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uint32_t uprv_cnttab_getCE(CntTable *table, uint32_t element, int32_t position, UBool forward, UErrorCode *status) {
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element &= 0xFFFFFF;
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ContractionTable *tbl = NULL;
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if(U_FAILURE(*status)) {
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return UCOL_NOT_FOUND;
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}
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if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
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return UCOL_NOT_FOUND;
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}
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if(forward == FALSE) {
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tbl = tbl->reversed;
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}
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if(position > tbl->position) {
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return UCOL_NOT_FOUND;
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} else {
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return tbl->CEs[position];
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}
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}
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uint32_t uprv_cnttab_changeContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t newCE, UBool forward, UErrorCode *status) {
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element &= 0xFFFFFF;
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ContractionTable *tbl = NULL;
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if(U_FAILURE(*status)) {
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return 0;
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}
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if((element == 0xFFFFFF) || (tbl = table->elements[element]) == NULL) {
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return 0;
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}
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if(forward == FALSE) {
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tbl = tbl->reversed;
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}
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int32_t position = 0;
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while(codePoint > tbl->codePoints[position]) {
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position++;
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if(position > tbl->position) {
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return UCOL_NOT_FOUND;
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}
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}
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if (codePoint == tbl->codePoints[position]) {
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tbl->CEs[position] = newCE;
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return element;
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} else {
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return UCOL_NOT_FOUND;
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}
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}
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