1/*
2*******************************************************************************
3*
4*   Copyright (C) 2001-2008, International Business Machines
5*   Corporation and others.  All Rights Reserved.
6*
7*******************************************************************************
8*   file name:  ucol_tok.cpp
9*   encoding:   US-ASCII
10*   tab size:   8 (not used)
11*   indentation:4
12*
13*   created 02/22/2001
14*   created by: Vladimir Weinstein
15*
16* This module maintains a contraction table structure in expanded form
17* and provides means to flatten this structure
18*
19*/
20
21#ifndef UCOL_CNTTABLE_H
22#define UCOL_CNTTABLE_H
23
24#include "unicode/utypes.h"
25
26#if !UCONFIG_NO_COLLATION
27
28#include "utrie.h"
29#include "ucol_imp.h"
30
31U_CDECL_BEGIN
32
33#define UPRV_CNTTAB_NEWELEMENT 0xFFFFFF
34
35#define isCntTableElement(CE) (isSpecial((CE)) && \
36((getCETag((CE)) == CONTRACTION_TAG)||(getCETag((CE)) == SPEC_PROC_TAG)))
37
38typedef struct ContractionTable ContractionTable;
39struct ContractionTable {
40    UChar *codePoints;
41    uint32_t *CEs;
42    uint32_t position;
43    uint32_t size;
44};
45
46struct CntTable {
47    ContractionTable **elements;
48    /*CompactEIntArray *mapping;*/
49    UNewTrie *mapping;
50    UChar *codePoints;
51    uint32_t *CEs;
52    int32_t *offsets;
53    int32_t position;
54    int32_t size;
55    int32_t capacity;
56    UColCETags currentTag;
57};
58
59U_CAPI CntTable* U_EXPORT2
60/*uprv_cnttab_open(CompactEIntArray *mapping, UErrorCode *status);*/
61uprv_cnttab_open(UNewTrie *mapping, UErrorCode *status);
62U_CAPI CntTable* U_EXPORT2
63uprv_cnttab_clone(CntTable *table, UErrorCode *status);
64U_CAPI void U_EXPORT2
65uprv_cnttab_close(CntTable *table);
66
67/* construct the table for output */
68U_CAPI int32_t U_EXPORT2
69uprv_cnttab_constructTable(CntTable *table, uint32_t mainOffset, UErrorCode *status);
70/* adds more contractions in table. If element is non existant, it creates on. Returns element handle */
71U_CAPI uint32_t U_EXPORT2
72uprv_cnttab_addContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UErrorCode *status);
73/* sets a part of contraction sequence in table. If element is non existant, it creates on. Returns element handle */
74U_CAPI uint32_t U_EXPORT2
75uprv_cnttab_setContraction(CntTable *table, uint32_t element, uint32_t offset, UChar codePoint, uint32_t value, UErrorCode *status);
76/* 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 */
77U_CAPI uint32_t U_EXPORT2
78uprv_cnttab_insertContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t value, UErrorCode *status);
79/* this is for adding non contractions */
80U_CAPI uint32_t U_EXPORT2
81uprv_cnttab_changeLastCE(CntTable *table, uint32_t element, uint32_t value, UErrorCode *status);
82
83U_CAPI int32_t U_EXPORT2
84uprv_cnttab_findCP(CntTable *table, uint32_t element, UChar codePoint, UErrorCode *status);
85
86U_CAPI uint32_t U_EXPORT2
87uprv_cnttab_getCE(CntTable *table, uint32_t element, uint32_t position, UErrorCode *status);
88
89U_CAPI uint32_t U_EXPORT2
90uprv_cnttab_changeContraction(CntTable *table, uint32_t element, UChar codePoint, uint32_t newCE, UErrorCode *status);
91
92U_CAPI uint32_t U_EXPORT2
93uprv_cnttab_findCE(CntTable *table, uint32_t element, UChar codePoint, UErrorCode *status);
94
95U_CAPI UBool U_EXPORT2
96uprv_cnttab_isTailored(CntTable *table, uint32_t element, UChar *ztString, UErrorCode *status);
97
98U_CDECL_END
99
100#endif /* #if !UCONFIG_NO_COLLATION */
101
102#endif
103