1 /* $Id: nameprep_template.c,v 1.1.1.1 2003/06/04 00:25:57 marka Exp $ */
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46 * Include this file once for each version of NAMEPREP.
47 * VERSION should be defined to appropriate value before inclusion.
50 #ifndef NAMEPREP_TEMPLATE_INIT
51 #define NAMEPREP_TEMPLATE_INIT
53 /* Symbol composition. */
54 #define compose_sym2(a, b) compose_sym2X(a, b)
55 #define compose_sym2X(a, b) a ## b
56 #define compose_sym3(a, b, c) compose_sym3X(a, b, c)
57 #define compose_sym3X(a, b, c) a ## b ## c
59 /* Index calculation for multi-level index tables. */
60 #define IDX0(type, v) IDX_0(v, BITS1(type), BITS2(type))
61 #define IDX1(type, v) IDX_1(v, BITS1(type), BITS2(type))
62 #define IDX2(type, v) IDX_2(v, BITS1(type), BITS2(type))
64 #define IDX_0(v, bits1, bits2) ((v) >> ((bits1) + (bits2)))
65 #define IDX_1(v, bits1, bits2) (((v) >> (bits2)) & ((1 << (bits1)) - 1))
66 #define IDX_2(v, bits1, bits2) ((v) & ((1 << (bits2)) - 1))
68 #define BITS1(type) type ## _BITS_1
69 #define BITS2(type) type ## _BITS_2
71 #endif /* NAMEPREP_TEMPLATE_INIT */
74 compose_sym2(nameprep_map_, VERSION) (unsigned long v) {
75 int idx0 = IDX0(MAP, v);
76 int idx1 = IDX1(MAP, v);
77 int idx2 = IDX2(MAP, v);
80 #define IMAP compose_sym3(nameprep_, VERSION, _map_imap)
81 #define TABLE compose_sym3(nameprep_, VERSION, _map_table)
82 #define DATA compose_sym3(nameprep_, VERSION, _map_data)
83 offset = TABLE[IMAP[IMAP[idx0] + idx1]].tbl[idx2];
85 return (NULL); /* no mapping */
86 return (const char *)(DATA + offset);
93 compose_sym2(nameprep_prohibited_, VERSION) (unsigned long v) {
94 int idx0 = IDX0(PROH, v);
95 int idx1 = IDX1(PROH, v);
96 int idx2 = IDX2(PROH, v);
97 const unsigned char *bm;
99 #define IMAP compose_sym3(nameprep_, VERSION, _prohibited_imap)
100 #define BITMAP compose_sym3(nameprep_, VERSION, _prohibited_bitmap)
101 bm = BITMAP[IMAP[IMAP[idx0] + idx1]].bm;
102 return (bm[idx2 / 8] & (1 << (idx2 % 8)));
108 compose_sym2(nameprep_unassigned_, VERSION) (unsigned long v) {
109 int idx0 = IDX0(UNAS, v);
110 int idx1 = IDX1(UNAS, v);
111 int idx2 = IDX2(UNAS, v);
112 const unsigned char *bm;
114 #define IMAP compose_sym3(nameprep_, VERSION, _unassigned_imap)
115 #define BITMAP compose_sym3(nameprep_, VERSION, _unassigned_bitmap)
116 bm = BITMAP[IMAP[IMAP[idx0] + idx1]].bm;
117 return (bm[idx2 / 8] & (1 << (idx2 % 8)));
122 static idn_biditype_t
123 compose_sym2(nameprep_biditype_, VERSION) (unsigned long v) {
124 int idx0 = IDX0(BIDI, v);
125 int idx1 = IDX1(BIDI, v);
126 int idx2 = IDX2(BIDI, v);
129 #define IMAP compose_sym3(nameprep_, VERSION, _bidi_imap)
130 #define TABLE compose_sym3(nameprep_, VERSION, _bidi_table)
131 #define DATA compose_sym3(nameprep_, VERSION, _bidi_data)
132 offset = TABLE[IMAP[IMAP[idx0] + idx1]].tbl[idx2];