xref: /aoo41x/main/cosv/inc/cosv/str_types.hxx (revision ac3d0c65)
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23cdf0e10cSrcweir 
24cdf0e10cSrcweir #ifndef COSV_STR_TYPES_HXX
25cdf0e10cSrcweir #define COSV_STR_TYPES_HXX
26cdf0e10cSrcweir 
27cdf0e10cSrcweir 
28cdf0e10cSrcweir namespace csv
29cdf0e10cSrcweir {
30cdf0e10cSrcweir 
31cdf0e10cSrcweir /** Provides some generally used constants.
32cdf0e10cSrcweir */
33cdf0e10cSrcweir struct str
34cdf0e10cSrcweir {
35cdf0e10cSrcweir   public:
36cdf0e10cSrcweir     typedef ::size_t    position;
37cdf0e10cSrcweir     typedef ::size_t    size;
38cdf0e10cSrcweir 
39cdf0e10cSrcweir     enum constants
40cdf0e10cSrcweir     {
41cdf0e10cSrcweir         npos = position(-1),
42cdf0e10cSrcweir         maxsize = size(-1)
43cdf0e10cSrcweir     };
44cdf0e10cSrcweir 
45cdf0e10cSrcweir     enum insert_mode
46cdf0e10cSrcweir     {
47cdf0e10cSrcweir         overwrite = 0,
48cdf0e10cSrcweir         insert = 1
49cdf0e10cSrcweir     };
50cdf0e10cSrcweir };
51cdf0e10cSrcweir 
52cdf0e10cSrcweir 
53cdf0e10cSrcweir /** Is used for string comparisons.
54cdf0e10cSrcweir 
55cdf0e10cSrcweir     @collab String
56cdf0e10cSrcweir     @collab various csv::compare(...) functions
57cdf0e10cSrcweir */
58cdf0e10cSrcweir class CharOrder_Table
59cdf0e10cSrcweir {
60cdf0e10cSrcweir   public:
61cdf0e10cSrcweir     /** @precond
62cdf0e10cSrcweir         Parameter i_pCharWeightsArray
63cdf0e10cSrcweir         must have size of 256.
64cdf0e10cSrcweir     */
65cdf0e10cSrcweir                         CharOrder_Table(
66cdf0e10cSrcweir                             const int *         i_pCharWeightsArray );
67cdf0e10cSrcweir 
68cdf0e10cSrcweir     /** @return the weight of the char i_c.
69cdf0e10cSrcweir         @precond
70cdf0e10cSrcweir         Even with unusual implementations, where char has more than 8 bit,
71cdf0e10cSrcweir         there must be true: 0 <= i_c < 256.
72cdf0e10cSrcweir     */
73cdf0e10cSrcweir     int                 operator()(
74cdf0e10cSrcweir                             char                i_c ) const;
75cdf0e10cSrcweir   private:
76cdf0e10cSrcweir     int                 cWeights[256];
77cdf0e10cSrcweir };
78cdf0e10cSrcweir 
79cdf0e10cSrcweir 
80cdf0e10cSrcweir // IMPLEMENTATION
81cdf0e10cSrcweir 
82cdf0e10cSrcweir inline int
operator ()(char i_c) const83cdf0e10cSrcweir CharOrder_Table::operator()( char i_c ) const
84cdf0e10cSrcweir     { return cWeights[ UINT8(i_c) ]; }
85cdf0e10cSrcweir 
86cdf0e10cSrcweir 
87cdf0e10cSrcweir 
88cdf0e10cSrcweir }   // namespace csv
89cdf0e10cSrcweir 
90cdf0e10cSrcweir #endif
91