michael@0: /*
michael@0: *******************************************************************************
michael@0: *
michael@0: *   Copyright (C) 2001-2008, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: *
michael@0: *******************************************************************************
michael@0: *   file name:  ucol_tok.cpp
michael@0: *   encoding:   US-ASCII
michael@0: *   tab size:   8 (not used)
michael@0: *   indentation:4
michael@0: *
michael@0: *   created 02/22/2001
michael@0: *   created by: Vladimir Weinstein
michael@0: *
michael@0: * This module maintains a contraction table structure in expanded form
michael@0: * and provides means to flatten this structure
michael@0: * 
michael@0: */
michael@0: 
michael@0: #ifndef UCOL_CNTTABLE_H
michael@0: #define UCOL_CNTTABLE_H
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #if !UCONFIG_NO_COLLATION
michael@0: 
michael@0: #include "utrie.h"
michael@0: #include "ucol_imp.h"
michael@0: 
michael@0: U_CDECL_BEGIN
michael@0: 
michael@0: #define UPRV_CNTTAB_NEWELEMENT 0xFFFFFF
michael@0: 
michael@0: #define isCntTableElement(CE) (isSpecial((CE)) && \
michael@0: ((getCETag((CE)) == CONTRACTION_TAG)||(getCETag((CE)) == SPEC_PROC_TAG)))
michael@0: 
michael@0: typedef struct ContractionTable ContractionTable;
michael@0: struct ContractionTable {
michael@0:     UChar *codePoints;
michael@0:     uint32_t *CEs;
michael@0:     uint32_t position;
michael@0:     uint32_t size;
michael@0: };
michael@0: 
michael@0: struct CntTable {
michael@0:     ContractionTable **elements;
michael@0:     /*CompactEIntArray *mapping;*/
michael@0:     UNewTrie *mapping;
michael@0:     UChar *codePoints;
michael@0:     uint32_t *CEs;
michael@0:     int32_t *offsets;
michael@0:     int32_t position;
michael@0:     int32_t size;
michael@0:     int32_t capacity;
michael@0:     UColCETags currentTag;
michael@0: };
michael@0: 
michael@0: U_CAPI CntTable* U_EXPORT2 
michael@0: /*uprv_cnttab_open(CompactEIntArray *mapping, UErrorCode *status);*/
michael@0: uprv_cnttab_open(UNewTrie *mapping, UErrorCode *status);
michael@0: U_CAPI CntTable* U_EXPORT2 
michael@0: uprv_cnttab_clone(CntTable *table, UErrorCode *status);
michael@0: U_CAPI void U_EXPORT2 
michael@0: uprv_cnttab_close(CntTable *table);
michael@0: 
michael@0: /* construct the table for output */
michael@0: U_CAPI int32_t U_EXPORT2 
michael@0: uprv_cnttab_constructTable(CntTable *table, uint32_t mainOffset, UErrorCode *status); 
michael@0: /* adds more contractions in table. If element is non existant, it creates on. Returns element handle */
michael@0: U_CAPI uint32_t U_EXPORT2 
michael@0: uprv_cnttab_addContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UErrorCode *status);
michael@0: /* sets a part of contraction sequence in table. If element is non existant, it creates on. Returns element handle */
michael@0: U_CAPI uint32_t U_EXPORT2 
michael@0: uprv_cnttab_setContraction(CntTable *table, uint32_t element, uint32_t offset, UChar codePoint, uint32_t value, UErrorCode *status);
michael@0: /* inserts a part of contraction sequence in table. Sequences behind the offset are moved back. If element is non existant, it creates on. Returns element handle */
michael@0: U_CAPI uint32_t U_EXPORT2 
michael@0: uprv_cnttab_insertContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UErrorCode *status);
michael@0: /* this is for adding non contractions */
michael@0: U_CAPI uint32_t U_EXPORT2 
michael@0: uprv_cnttab_changeLastCE(CntTable *table, uint32_t element, uint32_t value, UErrorCode *status);
michael@0: 
michael@0: U_CAPI int32_t U_EXPORT2 
michael@0: uprv_cnttab_findCP(CntTable *table, uint32_t element, UChar codePoint, UErrorCode *status);
michael@0: 
michael@0: U_CAPI uint32_t U_EXPORT2 
michael@0: uprv_cnttab_getCE(CntTable *table, uint32_t element, uint32_t position, UErrorCode *status);
michael@0: 
michael@0: U_CAPI uint32_t U_EXPORT2 
michael@0: uprv_cnttab_changeContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t newCE, UErrorCode *status);
michael@0: 
michael@0: U_CAPI uint32_t U_EXPORT2 
michael@0: uprv_cnttab_findCE(CntTable *table, uint32_t element, UChar codePoint, UErrorCode *status);
michael@0: 
michael@0: U_CAPI UBool U_EXPORT2 
michael@0: uprv_cnttab_isTailored(CntTable *table, uint32_t element, UChar *ztString, UErrorCode *status);
michael@0: 
michael@0: U_CDECL_END
michael@0: 
michael@0: #endif /* #if !UCONFIG_NO_COLLATION */
michael@0: 
michael@0: #endif